id float64 706 1.8k | title stringlengths 1 343 | abstract stringlengths 6 6.09k | categories stringlengths 5 125 | processed_abstract stringlengths 2 5.96k | tokenized_abstract stringlengths 8 8.74k | centroid stringlengths 2.1k 2.17k |
|---|---|---|---|---|---|---|
707.353 | $A$-dependence of coherent electroproduction of $\rho^{0}$ mesons on
nuclei in forward direction | This article presents the $A$-dependence of the differential cross section
for the coherent electroproduction of vector mesons on nuclei in forward
direction, at fixed values of longitudinal momentum transfer $q_{L}$. It is
shown that such cross section has complicated behavior over the atomic mass
number $A$ with local minimums and maximums. It is also shown that a ratio of
the real to the imaginary parts of the forward coherent amplitude on nuclei
$\alpha_{A} = \Re e{f_{A}} / \Im m{f_{A}}$ has breaking points at some values
of $A$. Comparison of the behaviors of the normalized cross section
$\Big(\frac{d\sigma}{d\Omega}\Big)_{A}\Big/\Big(\frac{d\sigma}{d\Omega}\Big)_{N}$
and $\alpha_{A}$ over $A$ shows that the location of minimums of the cross
section are very close to the breaking points of $\alpha_{A}$.
| hep-ph | this article presents the adependence of the differential cross section for the coherent electroproduction of vector mesons on nuclei in forward direction at fixed values of longitudinal momentum transfer q_l it is shown that such cross section has complicated behavior over the atomic mass number a with local minimums and maximums it is also shown that a ratio of the real to the imaginary parts of the forward coherent amplitude on nuclei alpha_a re ef_a im mf_a has breaking points at some values of a comparison of the behaviors of the normalized cross section bigfracdsigmadomegabig_abigbigfracdsigmadomegabig_n and alpha_a over a shows that the location of minimums of the cross section are very close to the breaking points of alpha_a | [['this', 'article', 'presents', 'the', 'adependence', 'of', 'the', 'differential', 'cross', 'section', 'for', 'the', 'coherent', 'electroproduction', 'of', 'vector', 'mesons', 'on', 'nuclei', 'in', 'forward', 'direction', 'at', 'fixed', 'values', 'of', 'longitudinal', 'momentum', 'transfer', 'q_l', 'it', 'is', 'shown', 'that', 'such', 'cross', 'section', 'has', 'complicated', 'behavior', 'over', 'the', 'atomic', 'mass', 'number', 'a', 'with', 'local', 'minimums', 'and', 'maximums', 'it', 'is', 'also', 'shown', 'that', 'a', 'ratio', 'of', 'the', 'real', 'to', 'the', 'imaginary', 'parts', 'of', 'the', 'forward', 'coherent', 'amplitude', 'on', 'nuclei', 'alpha_a', 're', 'ef_a', 'im', 'mf_a', 'has', 'breaking', 'points', 'at', 'some', 'values', 'of', 'a', 'comparison', 'of', 'the', 'behaviors', 'of', 'the', 'normalized', 'cross', 'section', 'bigfracdsigmadomegabig_abigbigfracdsigmadomegabig_n', 'and', 'alpha_a', 'over', 'a', 'shows', 'that', 'the', 'location', 'of', 'minimums', 'of', 'the', 'cross', 'section', 'are', 'very', 'close', 'to', 'the', 'breaking', 'points', 'of', 'alpha_a']] | [-0.1606975087005159, 0.11961837951093912, -0.10520589702924632, 0.07174215710256249, -0.013866592791822294, -0.05392287725015827, 0.042679944674929846, 0.3507966054684442, -0.23403363384954307, -0.21970615244430045, -0.006891260123001817, -0.3370031456908454, -0.0584336512155183, 0.20482611299047004, 0.0452284283409624, 0.059195299286891344, 0.025982472600172394, 0.09551801619970281, -0.04669115354064042, -0.22950664654212152, 0.34955668184582306, 0.038822551508960516, 0.2628789456966131, 0.12050529440621967, 0.10730248848381249, 0.06672589514333674, -0.007307361264753601, -0.009959225437563399, -0.09501822943003271, 0.08929823922884206, 0.25754692254223577, 0.04550399181797453, 0.17537698198271834, -0.33134702790690507, -0.11075859651293443, 0.11957561083785866, 0.15203649550322038, 0.07597522495071525, -0.00753939566809846, -0.2424452304435165, 0.10261779793679876, -0.15356245855598347, -0.12208851009769284, -0.04834604798613683, 0.10661868498073486, 0.025283689430469405, -0.254353217088172, 0.04507475183978069, 0.0069680189227928286, 0.07623939904505792, -0.04604987449053189, -0.1761241004437856, -0.06358223911374808, 0.05575945804138546, 0.12585457013110105, 0.034511627854131484, 0.14743189461043346, -0.14410163625953315, -0.06828095796416797, 0.35338112467333027, -0.023716051992960275, -0.17717668907818102, 0.12365961507286714, -0.19208809753636952, -0.08920134742460821, 0.186384651299728, 0.18536509331315756, 0.10027247579444362, -0.07866979980760294, 0.09739564128584512, -0.05188813800721065, 0.16747546594427978, 0.11932898875852319, 0.004822641922889844, 0.178808162442368, 0.13955786731903969, 0.06304129824123304, 0.034497585588985163, -0.14629911404184026, -0.11468401939972588, -0.3701262903723704, -0.15737482355502636, -0.10313691799832589, 0.052126454626736436, -0.06596160250407157, -0.13151504944594902, 0.3874398397119797, 0.058990959321849716, 0.339248755266485, 0.02856786432068633, 0.319423063484061, 0.1613651656302745, 0.08494416007205197, 0.041535304430062356, 0.2844885669661301, 0.17939175182710523, 0.14262975421734153, -0.21487724739734246, 0.08493145815623196, 0.03473821060489053] |
707.3531 | e-Science initiatives in Venezuela | Within the context of the nascent e-Science infrastructure in Venezuela, we
describe several web-based scientific applications developed at the Centro
Nacional de Calculo Cientifico Universidad de Los Andes (CeCalCULA), Merida,
and at the Instituto Venezolano de Investigaciones Cientificas (IVIC), Caracas.
The different strategies that have been followed for implementing quantum
chemistry and atomic physics applications are presented. We also briefly
discuss a damage portal based on dynamic, nonlinear, finite elements of lumped
damage mechanics and a biomedical portal developed within the framework of the
\textit{E-Infrastructure shared between Europe and Latin America} (EELA)
initiative for searching common sequences and inferring their functions in
parasitic diseases such as leishmaniasis, chagas and malaria.
| cs.CE cs.DC | within the context of the nascent escience infrastructure in venezuela we describe several webbased scientific applications developed at the centro nacional de calculo cientifico universidad de los andes cecalcula merida and at the instituto venezolano de investigaciones cientificas ivic caracas the different strategies that have been followed for implementing quantum chemistry and atomic physics applications are presented we also briefly discuss a damage portal based on dynamic nonlinear finite elements of lumped damage mechanics and a biomedical portal developed within the framework of the textiteinfrastructure shared between europe and latin america eela initiative for searching common sequences and inferring their functions in parasitic diseases such as leishmaniasis chagas and malaria | [['within', 'the', 'context', 'of', 'the', 'nascent', 'escience', 'infrastructure', 'in', 'venezuela', 'we', 'describe', 'several', 'webbased', 'scientific', 'applications', 'developed', 'at', 'the', 'centro', 'nacional', 'de', 'calculo', 'cientifico', 'universidad', 'de', 'los', 'andes', 'cecalcula', 'merida', 'and', 'at', 'the', 'instituto', 'venezolano', 'de', 'investigaciones', 'cientificas', 'ivic', 'caracas', 'the', 'different', 'strategies', 'that', 'have', 'been', 'followed', 'for', 'implementing', 'quantum', 'chemistry', 'and', 'atomic', 'physics', 'applications', 'are', 'presented', 'we', 'also', 'briefly', 'discuss', 'a', 'damage', 'portal', 'based', 'on', 'dynamic', 'nonlinear', 'finite', 'elements', 'of', 'lumped', 'damage', 'mechanics', 'and', 'a', 'biomedical', 'portal', 'developed', 'within', 'the', 'framework', 'of', 'the', 'textiteinfrastructure', 'shared', 'between', 'europe', 'and', 'latin', 'america', 'eela', 'initiative', 'for', 'searching', 'common', 'sequences', 'and', 'inferring', 'their', 'functions', 'in', 'parasitic', 'diseases', 'such', 'as', 'leishmaniasis', 'chagas', 'and', 'malaria']] | [-0.09138118172133411, 0.12226127828816297, -0.03929811209888646, 0.1012830075277533, -0.07405775767337117, -0.12127457880328789, -0.02150827383889851, 0.30754833697789796, -0.17870390263420563, -0.2843237446784904, 0.1313809854985232, -0.2992091079380501, -0.18425683899894701, 0.20080674647491564, -0.09532084654482012, 0.017127915061320418, 0.0030925294936255173, -0.061601615023661266, 0.05953880835160682, -0.22908771540797143, 0.2293965645173254, 0.1101312745325871, 0.33435840585648463, 0.06733626784774026, 0.1315272595923118, 0.05544588219426158, -0.05795442021055216, -0.0621408753450615, -0.16079221109039618, 0.1260353851399419, 0.40976630044342194, 0.2396604231735519, 0.32314506528416165, -0.4228000112645397, -0.174839477829799, 0.05681980744487158, 0.08801459873103779, 0.05992230217627905, -0.07724006137383792, -0.3884918943858119, 0.019461781517343804, -0.2260006967030845, -0.10203458341345174, 0.02670252262355967, -0.019102087291819905, 0.026999845193198847, -0.1769054343716966, 0.003418004422403303, -0.10056889324483496, 0.17248786999671548, -0.019013755535491294, -0.1929983511239428, -0.03457296454709851, 0.13807987467885982, -0.05828660379888283, 0.014659303182270378, 0.13654011481493297, -0.07845193331983562, -0.1460230196330317, 0.33940534568628883, -0.03136106479602555, -0.052981146841948094, 0.1735885107935044, -0.08497437292114934, -0.20506337272537942, 0.033273719393441245, 0.20217779615928452, 0.06366917649197772, -0.15656285324237412, 0.14338046994978665, 0.05421429591391374, 0.0965927180023519, 0.161342670086823, -0.028319139270698308, 0.20145243454586576, 0.18471302981089577, -0.02363606921992161, 0.021770617893370973, -0.08891399963155251, -0.11455158495206248, -0.21208227224889453, -0.21153224710616525, -0.06588181354001993, -0.05634194274467451, -0.022155701378964027, -0.17621394606410629, 0.3352781182868596, 0.12529820396081992, 0.013373934924688743, -0.03529023777702133, 0.2464016967246102, -0.07197050547714483, 0.056075510567838875, 0.08364973881463003, 0.15819503690107484, 0.07225835670855034, 0.23079568519757163, -0.19614268241086932, 0.060833556487018034, 0.046645264693156434] |
707.3532 | On the Hausdorff dimension of invariant measures of weakly contracting
on average measurable IFS | We consider measures which are invariant under a measurable iterated function
system with positive, place-dependent probabilities in a separable metric
space. We provide an upper bound of the Hausdorff dimension of such a measure
if it is ergodic. We also prove that it is ergodic iff the related skew product
is.
| math.DS math.PR | we consider measures which are invariant under a measurable iterated function system with positive placedependent probabilities in a separable metric space we provide an upper bound of the hausdorff dimension of such a measure if it is ergodic we also prove that it is ergodic iff the related skew product is | [['we', 'consider', 'measures', 'which', 'are', 'invariant', 'under', 'a', 'measurable', 'iterated', 'function', 'system', 'with', 'positive', 'placedependent', 'probabilities', 'in', 'a', 'separable', 'metric', 'space', 'we', 'provide', 'an', 'upper', 'bound', 'of', 'the', 'hausdorff', 'dimension', 'of', 'such', 'a', 'measure', 'if', 'it', 'is', 'ergodic', 'we', 'also', 'prove', 'that', 'it', 'is', 'ergodic', 'iff', 'the', 'related', 'skew', 'product', 'is']] | [-0.16414286475628614, 0.18415339651313845, -0.13155361271463334, 0.13273844741052016, -0.010417430503293872, -0.15607407957781105, 0.030797800030559302, 0.38160533057525753, -0.30874810231849553, -0.10660842452198267, 0.13228639563312755, -0.3037293533422053, -0.2142248450964689, 0.2073978134430945, -0.1249768936354667, 0.03985181035473943, 0.03679564041085541, 0.1805239237198839, -0.10245723155792802, -0.2567229164438322, 0.4176980596780777, -0.02732564290985465, 0.23860815739259122, 0.1209985035227146, 0.1739056358113885, -0.008746377280913294, -0.026455351142212747, 0.041996510940953156, -0.21039205128865432, 0.0856440812163055, 0.21544990062713623, 0.18594861099496485, 0.2415903483371949, -0.2473025779798627, -0.13755650758743287, 0.23835053134709597, 0.07362655035220086, -0.029335418913979082, 0.005212908103130758, -0.3101626975461841, 0.10598147847224026, -0.1939486725628376, -0.12328382028266788, -0.09906768549932167, 0.0856106099486351, 0.003675472494214773, -0.33133937321603296, 0.01797182507289108, 0.13633125383406877, 0.043699208201724106, -0.08557981492020189, -0.03895295586204156, 0.016185378935188056, 0.10688748585758731, 0.024577255335170776, 0.07868182183010504, 0.10246712226420641, 0.0160829702578485, -0.10715040768496692, 0.3374049586709589, -0.12335077641066164, -0.34032956093549727, 0.1515504235588014, -0.22614498272538186, -0.14410995834507048, 0.103862877022475, 0.13149984052404762, 0.12467932783067226, -0.12168019142001868, 0.18782541198655964, -0.1805230843834579, 0.1347133302874863, 0.03684545976109803, 0.12631249397061764, 0.1327195392549038, 0.1068968877196312, 0.2586750307306647, 0.2057643948122859, 0.009148436663672328, -0.06479317137040198, -0.31147408358752726, -0.21417552262195386, -0.19871348286978902, 0.15537101907655596, -0.09850655367597938, -0.22566436178982258, 0.28995651497505603, 0.07696114025078714, 0.1681680546887219, 0.1430212474358268, 0.25527807474136355, 0.21484537595883013, -0.012518057653214782, 0.13300863488577305, 0.13942953921854495, 0.1365073293587193, -0.07022953387349844, -0.11221226531080902, 0.0922329025156796, 0.15718785619363188] |
707.3533 | Exact Extended Supersymmetry on a Lattice: Twisted N=4 Super Yang-Mills
in Three Dimensions | We propose a lattice formulation of three dimensional super Yang-Mills model
with a twisted N=4 supersymmetry. The extended supersymmetry algebra of all the
eight supercharges is fully and exactly realized on the lattice with a modified
"Leibniz rule". The formulation we employ here is a three dimensional extension
of manifestly gauge covariant method which was developed in our previous
proposal of Dirac-Kaehler twisted N=2 super Yang-Mills on two dimensional
lattice. The twisted N=4 supersymmetry algebra is geometrically realized on a
three dimensional lattice with link supercharges and the use of "shifted"
(anti-)commutators. A possible solution to the recent critiques on the link
formulation will be discussed.
| hep-lat hep-th | we propose a lattice formulation of three dimensional super yangmills model with a twisted n4 supersymmetry the extended supersymmetry algebra of all the eight supercharges is fully and exactly realized on the lattice with a modified leibniz rule the formulation we employ here is a three dimensional extension of manifestly gauge covariant method which was developed in our previous proposal of dirackaehler twisted n2 super yangmills on two dimensional lattice the twisted n4 supersymmetry algebra is geometrically realized on a three dimensional lattice with link supercharges and the use of shifted anticommutators a possible solution to the recent critiques on the link formulation will be discussed | [['we', 'propose', 'a', 'lattice', 'formulation', 'of', 'three', 'dimensional', 'super', 'yangmills', 'model', 'with', 'a', 'twisted', 'n4', 'supersymmetry', 'the', 'extended', 'supersymmetry', 'algebra', 'of', 'all', 'the', 'eight', 'supercharges', 'is', 'fully', 'and', 'exactly', 'realized', 'on', 'the', 'lattice', 'with', 'a', 'modified', 'leibniz', 'rule', 'the', 'formulation', 'we', 'employ', 'here', 'is', 'a', 'three', 'dimensional', 'extension', 'of', 'manifestly', 'gauge', 'covariant', 'method', 'which', 'was', 'developed', 'in', 'our', 'previous', 'proposal', 'of', 'dirackaehler', 'twisted', 'n2', 'super', 'yangmills', 'on', 'two', 'dimensional', 'lattice', 'the', 'twisted', 'n4', 'supersymmetry', 'algebra', 'is', 'geometrically', 'realized', 'on', 'a', 'three', 'dimensional', 'lattice', 'with', 'link', 'supercharges', 'and', 'the', 'use', 'of', 'shifted', 'anticommutators', 'a', 'possible', 'solution', 'to', 'the', 'recent', 'critiques', 'on', 'the', 'link', 'formulation', 'will', 'be', 'discussed']] | [-0.1398763172592054, 0.1555828653311111, -0.057982507012433036, 0.042958389131905826, -0.09009216938888268, -0.17497093857810744, -0.021804457174543785, 0.3881776728403737, -0.17625428719186875, -0.214920875669088, 0.1493904527467851, -0.22595860832370818, -0.1995231848877837, 0.07339582975980176, -0.06058230303131255, 0.0491423220637272, 0.03776399094286322, 0.07740649467615306, -0.14383369193133405, -0.3224978135538481, 0.3348860524524495, -0.023721769952900568, 0.2755996462107056, 0.007223519197893592, 0.15548798852196, 0.011989661720844935, -0.010476472594265668, 0.030666262886645097, -0.09887380935339574, 0.18933347331465417, 0.17578858411255874, 0.005841837084483144, 0.10737767687313399, -0.4297571383012494, -0.20029413406649288, 0.03020172679515661, 0.13487982086591283, 0.10275853280623812, 0.009070204592562903, -0.24167777000451987, -0.003813833068564253, -0.23551175267136884, -0.16895572616793392, -0.09011109557248792, -0.0497810664599902, -0.16706711339834585, -0.26014081590791355, 0.045400880698887806, 0.0035197976471434507, 0.07425204288205658, -0.042771364795044065, -0.1037866355069333, -0.08476916002768602, -0.007693848317875614, 0.010948712341179896, 0.05845680653627189, 0.05369103041846516, -0.12202190768928048, -0.23109621732970173, 0.40244954476519573, -0.02677771204836526, -0.26347280483482016, 0.19589657058833904, -0.12966854578841758, -0.2343231388982737, 0.06446805482297556, 0.06942115271604567, 0.16359572623909083, -0.1268064399987881, 0.1984036684526078, -0.13774200003453582, 0.11001623166891975, 0.08091504859544758, -0.0224103409058924, 0.2280924566406405, 0.16046051675770082, 0.05088952380091936, 0.16208928653790247, 0.004601476529507704, -0.14321024726059306, -0.4008497899081909, -0.16948927025077865, -0.13395322080951994, 0.12844741483491337, -0.09103855541616213, -0.12107778764066268, 0.38051387652719637, 0.10416404680867311, 0.14497336430721125, 0.05671546520534321, 0.20878725331540238, 0.13179174072289276, 0.13746685846620854, 0.013576556853774303, 0.2029727262286645, 0.1906113523862518, 0.06499326457862549, -0.23612600296103167, -0.22510575077316355, 0.2743821015893394] |
707.3534 | The Kinetostatic Optimization of a Novel Prismatic Drive | The design of a mechanical transmission taking into account the transmitted
forces is reported in this paper. This transmission is based on Slide-o-Cam, a
cam mechanism with multiple rollers mounted on a common translating follower.
The design of Slide-o-Cam, a transmission intended to produce a sliding motion
from a turning drive, or vice versa, was reported elsewhere. This transmission
provides pure-rolling motion, thereby reducing the friction of rack-and-pinions
and linear drives. The pressure angle is a suitable performance index for this
transmission because it determines the amount of force transmitted to the load
vs. that transmitted to the machine frame. To assess the transmission
capability of the mechanism, the Hertz formula is introduced to calculate the
stresses on the rollers and on the cams. The final transmission is intended to
replace the current ball-screws in the Orthoglide, a three-DOF parallel robot
for the production of translational motions, currently under development for
machining applications at Ecole Centrale de Nantes.
| cs.RO | the design of a mechanical transmission taking into account the transmitted forces is reported in this paper this transmission is based on slideocam a cam mechanism with multiple rollers mounted on a common translating follower the design of slideocam a transmission intended to produce a sliding motion from a turning drive or vice versa was reported elsewhere this transmission provides purerolling motion thereby reducing the friction of rackandpinions and linear drives the pressure angle is a suitable performance index for this transmission because it determines the amount of force transmitted to the load vs that transmitted to the machine frame to assess the transmission capability of the mechanism the hertz formula is introduced to calculate the stresses on the rollers and on the cams the final transmission is intended to replace the current ballscrews in the orthoglide a threedof parallel robot for the production of translational motions currently under development for machining applications at ecole centrale de nantes | [['the', 'design', 'of', 'a', 'mechanical', 'transmission', 'taking', 'into', 'account', 'the', 'transmitted', 'forces', 'is', 'reported', 'in', 'this', 'paper', 'this', 'transmission', 'is', 'based', 'on', 'slideocam', 'a', 'cam', 'mechanism', 'with', 'multiple', 'rollers', 'mounted', 'on', 'a', 'common', 'translating', 'follower', 'the', 'design', 'of', 'slideocam', 'a', 'transmission', 'intended', 'to', 'produce', 'a', 'sliding', 'motion', 'from', 'a', 'turning', 'drive', 'or', 'vice', 'versa', 'was', 'reported', 'elsewhere', 'this', 'transmission', 'provides', 'purerolling', 'motion', 'thereby', 'reducing', 'the', 'friction', 'of', 'rackandpinions', 'and', 'linear', 'drives', 'the', 'pressure', 'angle', 'is', 'a', 'suitable', 'performance', 'index', 'for', 'this', 'transmission', 'because', 'it', 'determines', 'the', 'amount', 'of', 'force', 'transmitted', 'to', 'the', 'load', 'vs', 'that', 'transmitted', 'to', 'the', 'machine', 'frame', 'to', 'assess', 'the', 'transmission', 'capability', 'of', 'the', 'mechanism', 'the', 'hertz', 'formula', 'is', 'introduced', 'to', 'calculate', 'the', 'stresses', 'on', 'the', 'rollers', 'and', 'on', 'the', 'cams', 'the', 'final', 'transmission', 'is', 'intended', 'to', 'replace', 'the', 'current', 'ballscrews', 'in', 'the', 'orthoglide', 'a', 'threedof', 'parallel', 'robot', 'for', 'the', 'production', 'of', 'translational', 'motions', 'currently', 'under', 'development', 'for', 'machining', 'applications', 'at', 'ecole', 'centrale', 'de', 'nantes']] | [-0.18371576177587193, 0.110004636012919, -0.10080367602640763, -0.02790851923411772, -0.10817677577536913, -0.16680895435593782, 0.057873173788820786, 0.34160872762722355, -0.282596450833784, -0.2625942692280777, 0.09268693317445145, -0.24466884079719745, -0.1253780905893373, 0.19547502764710975, -0.10747812808521333, 0.03218127963163199, 0.021623219313821003, 0.04844159113183137, 0.02720592889198733, -0.20718725920023937, 0.23945172484062852, 0.12154590239628188, 0.3432628176445442, 0.03624550557297264, 0.13836457238057553, 0.06794935594643316, -0.02631480456358047, -0.036520137956305855, -0.13130309771199059, 0.1202715115125982, 0.20858992498683473, 0.10256437013646769, 0.27187009059012895, -0.4072872978665175, -0.2009902956872998, 0.0503061332754911, 0.10532803710309728, 0.07851673910814909, -0.04670124056208278, -0.2578552877049773, 0.0671873425208633, -0.13265536110998402, -0.09054723549634218, -0.0033037342972332432, 0.014777124531927609, 0.02068159230834534, -0.2706512257471801, 0.011589465945238067, 0.020228186649300397, 0.06298491834783025, -0.09481930550518296, -0.05780710760323751, -0.03030924959438703, 0.1421371917976367, 0.022175300720658514, 0.018904101564699124, 0.1691312178503722, -0.10045319800415346, -0.07630605667589173, 0.41970645276409, -0.008120715368216137, -0.2079850971698761, 0.17590758109525326, -0.09692550985322844, -0.0454632816025086, 0.14592686415229353, 0.2049937856691559, 0.05738520076152898, -0.15924734041571706, -0.002630833215681055, 0.04740325705178322, 0.17227974876370883, 0.123273652116017, -0.04800141751916418, 0.22240183456921048, 0.18376061159276194, 0.04493970305869176, 0.15882350231310532, -0.1366660373525754, -0.07401307193982985, -0.2737832994438753, -0.1975571636110544, -0.145083574533102, 0.026177077062968766, -0.010930756302062241, -0.13368650995675593, 0.37496239273778853, 0.13844715905556035, 0.161687688682709, 0.05838932415710822, 0.3818567467748278, 0.09101004766360406, 0.08591682699418837, 0.047725769135379986, 0.27730564370210614, 0.09678890417975884, 0.1652813969360244, -0.25164818879847806, 0.09145586129067645, 0.02129906913445842] |
707.3535 | Chiral Plaquette Polaron Theory of Cuprate Superconductivity | Ab-initio density functional calculations on explicitly doped
La(2-x)Sr(x)CuO4 find doping creates localized holes in out-of-plane orbitals.
A model for superconductivity is developed based on the assumption that doping
leads to the formation of holes on a four-site Cu plaquette composed of the
out-of-plane A1 orbitals apical O pz, planar Cu dz2, and planar O psigma. This
is in contrast to the assumption of hole doping into planar Cu dx2-y2 and O
psigma orbitals as in the t-J model. Interaction of holes with the d9 spin
background leads to chiral polarons with either a clockwise or anti-clockwise
charge current. When the polaron plaquettes percolate through the crystal at
x~0.05 for LaSrCuO, a Cu dx2-y2 and planar O psigma band is formed. Spin
exchange Coulomb repulsion with chiral polarons leads to D-wave
superconductivity. The equivalent of the Debye energy in phonon
superconductivity is the maximum energy separation between a chiral polaron and
its time-reversed partner. An additive skew-scattering contribution to the Hall
effect is induced by chiral polarons and leads to a temperature dependent Hall
effect that fits the measured values for LaSrCuO. The integrated imaginary
susceptibility satisfies omega/T scaling due to chirality and spin-flip
scattering of polarons along with a uniform distribution of polaron energy
splittings. The derived functional form is compatible with experiments. The
static spin structure factor is computed and is incommensurate with a
separation distance from (pi,pi) given by ~(2pi)x. Coulomb scattering of the
x2-y2 band with polarons leads to linear resistivity. Coupling of the x2-y2
band to the undoped Cu d9 spins leads to the ARPES pseudogap and its doping and
temperature dependence.
| cond-mat.supr-con cond-mat.str-el | abinitio density functional calculations on explicitly doped la2xsrxcuo4 find doping creates localized holes in outofplane orbitals a model for superconductivity is developed based on the assumption that doping leads to the formation of holes on a foursite cu plaquette composed of the outofplane a1 orbitals apical o pz planar cu dz2 and planar o psigma this is in contrast to the assumption of hole doping into planar cu dx2y2 and o psigma orbitals as in the tj model interaction of holes with the d9 spin background leads to chiral polarons with either a clockwise or anticlockwise charge current when the polaron plaquettes percolate through the crystal at x005 for lasrcuo a cu dx2y2 and planar o psigma band is formed spin exchange coulomb repulsion with chiral polarons leads to dwave superconductivity the equivalent of the debye energy in phonon superconductivity is the maximum energy separation between a chiral polaron and its timereversed partner an additive skewscattering contribution to the hall effect is induced by chiral polarons and leads to a temperature dependent hall effect that fits the measured values for lasrcuo the integrated imaginary susceptibility satisfies omegat scaling due to chirality and spinflip scattering of polarons along with a uniform distribution of polaron energy splittings the derived functional form is compatible with experiments the static spin structure factor is computed and is incommensurate with a separation distance from pipi given by 2pix coulomb scattering of the x2y2 band with polarons leads to linear resistivity coupling of the x2y2 band to the undoped cu d9 spins leads to the arpes pseudogap and its doping and temperature dependence | [['abinitio', 'density', 'functional', 'calculations', 'on', 'explicitly', 'doped', 'la2xsrxcuo4', 'find', 'doping', 'creates', 'localized', 'holes', 'in', 'outofplane', 'orbitals', 'a', 'model', 'for', 'superconductivity', 'is', 'developed', 'based', 'on', 'the', 'assumption', 'that', 'doping', 'leads', 'to', 'the', 'formation', 'of', 'holes', 'on', 'a', 'foursite', 'cu', 'plaquette', 'composed', 'of', 'the', 'outofplane', 'a1', 'orbitals', 'apical', 'o', 'pz', 'planar', 'cu', 'dz2', 'and', 'planar', 'o', 'psigma', 'this', 'is', 'in', 'contrast', 'to', 'the', 'assumption', 'of', 'hole', 'doping', 'into', 'planar', 'cu', 'dx2y2', 'and', 'o', 'psigma', 'orbitals', 'as', 'in', 'the', 'tj', 'model', 'interaction', 'of', 'holes', 'with', 'the', 'd9', 'spin', 'background', 'leads', 'to', 'chiral', 'polarons', 'with', 'either', 'a', 'clockwise', 'or', 'anticlockwise', 'charge', 'current', 'when', 'the', 'polaron', 'plaquettes', 'percolate', 'through', 'the', 'crystal', 'at', 'x005', 'for', 'lasrcuo', 'a', 'cu', 'dx2y2', 'and', 'planar', 'o', 'psigma', 'band', 'is', 'formed', 'spin', 'exchange', 'coulomb', 'repulsion', 'with', 'chiral', 'polarons', 'leads', 'to', 'dwave', 'superconductivity', 'the', 'equivalent', 'of', 'the', 'debye', 'energy', 'in', 'phonon', 'superconductivity', 'is', 'the', 'maximum', 'energy', 'separation', 'between', 'a', 'chiral', 'polaron', 'and', 'its', 'timereversed', 'partner', 'an', 'additive', 'skewscattering', 'contribution', 'to', 'the', 'hall', 'effect', 'is', 'induced', 'by', 'chiral', 'polarons', 'and', 'leads', 'to', 'a', 'temperature', 'dependent', 'hall', 'effect', 'that', 'fits', 'the', 'measured', 'values', 'for', 'lasrcuo', 'the', 'integrated', 'imaginary', 'susceptibility', 'satisfies', 'omegat', 'scaling', 'due', 'to', 'chirality', 'and', 'spinflip', 'scattering', 'of', 'polarons', 'along', 'with', 'a', 'uniform', 'distribution', 'of', 'polaron', 'energy', 'splittings', 'the', 'derived', 'functional', 'form', 'is', 'compatible', 'with', 'experiments', 'the', 'static', 'spin', 'structure', 'factor', 'is', 'computed', 'and', 'is', 'incommensurate', 'with', 'a', 'separation', 'distance', 'from', 'pipi', 'given', 'by', '2pix', 'coulomb', 'scattering', 'of', 'the', 'x2y2', 'band', 'with', 'polarons', 'leads', 'to', 'linear', 'resistivity', 'coupling', 'of', 'the', 'x2y2', 'band', 'to', 'the', 'undoped', 'cu', 'd9', 'spins', 'leads', 'to', 'the', 'arpes', 'pseudogap', 'and', 'its', 'doping', 'and', 'temperature', 'dependence']] | [-0.18126362044856234, 0.22528639591330846, 0.005939560090103802, 0.034365252947065765, -0.04447310135989749, -0.17017533577592026, 0.10875889154959399, 0.38436635088017385, -0.23733058897954112, -0.24159428768369529, -0.10437239408493042, -0.382495215155606, -0.06086978211489348, 0.07178921352474475, 0.07315222557396892, -0.04364927083265941, -0.036577564577203035, -0.046532235792750176, -0.13418327040381658, -0.20157675465199887, 0.3028540194684196, 0.022985422914795016, 0.3034335956056514, 0.12075936304370187, 0.009014483887091595, 0.07149148360377985, 0.16173561230688444, 0.025128756055030708, -0.14334870633512148, 0.07093865362848244, 0.2713121646626431, -0.15721736198537192, 0.13976707469830113, -0.438957410161647, -0.1535064451923629, -0.05991530830286584, 0.13643253908431122, 0.16202338867522073, -0.05371444441580196, -0.25974329616435154, 0.014837324307827315, -0.15663739874220964, -0.13082995143661907, -0.05252541374538164, 0.034198181250984866, -0.03541729137442022, -0.30013928576043086, 0.15553555364208735, 0.07445357691865626, 0.0497570865624749, -0.1401749956254619, -0.13638429882549594, -0.16514317026396969, -0.0027192212040492176, 0.08728339141322616, 0.1202024437017071, 0.16997895447607592, -0.06445177044842462, -0.11572835421879371, 0.36057503084599407, -0.03796133700723075, -0.12241024648559824, 0.1445952988827144, -0.1936490514895545, -0.03802022416109465, 0.18947320543493162, 0.04735326267370322, 0.06131704200129464, -0.11365375146692627, 0.17153196422853242, -0.0033629388570398937, 0.20680140060776808, 0.06541712742808434, 0.06999325912867514, 0.269021509201178, 0.17190468195553446, 0.05401783976879603, 0.11086824377076174, -0.1485710630219711, -0.04145404434464169, -0.20065068816941864, -0.13187934942543506, -0.24812977181325824, 0.09144940289585271, -0.08617152882128172, -0.21755258058074792, 0.36530865183262645, 0.07211069104103547, 0.20645526042032356, -0.06413506963378135, 0.17630106766030296, 0.13801536144236243, 0.09678785216924295, 0.032446307288307066, 0.21742936214465067, 0.21973976124745775, 0.09326660716818329, -0.3841842449296547, 0.05496481072755074, 0.06408988061341246] |
707.3536 | Degenerating families of dendrograms | Dendrograms used in data analysis are ultrametric spaces, hence objects of
nonarchimedean geometry. It is known that there exist $p$-adic representation
of dendrograms. Completed by a point at infinity, they can be viewed as
subtrees of the Bruhat-Tits tree associated to the $p$-adic projective line.
The implications are that certain moduli spaces known in algebraic geometry are
$p$-adic parameter spaces of (families of) dendrograms, and stochastic
classification can also be handled within this framework. At the end, we
calculate the topology of the hidden part of a dendrogram.
| stat.ML | dendrograms used in data analysis are ultrametric spaces hence objects of nonarchimedean geometry it is known that there exist padic representation of dendrograms completed by a point at infinity they can be viewed as subtrees of the bruhattits tree associated to the padic projective line the implications are that certain moduli spaces known in algebraic geometry are padic parameter spaces of families of dendrograms and stochastic classification can also be handled within this framework at the end we calculate the topology of the hidden part of a dendrogram | [['dendrograms', 'used', 'in', 'data', 'analysis', 'are', 'ultrametric', 'spaces', 'hence', 'objects', 'of', 'nonarchimedean', 'geometry', 'it', 'is', 'known', 'that', 'there', 'exist', 'padic', 'representation', 'of', 'dendrograms', 'completed', 'by', 'a', 'point', 'at', 'infinity', 'they', 'can', 'be', 'viewed', 'as', 'subtrees', 'of', 'the', 'bruhattits', 'tree', 'associated', 'to', 'the', 'padic', 'projective', 'line', 'the', 'implications', 'are', 'that', 'certain', 'moduli', 'spaces', 'known', 'in', 'algebraic', 'geometry', 'are', 'padic', 'parameter', 'spaces', 'of', 'families', 'of', 'dendrograms', 'and', 'stochastic', 'classification', 'can', 'also', 'be', 'handled', 'within', 'this', 'framework', 'at', 'the', 'end', 'we', 'calculate', 'the', 'topology', 'of', 'the', 'hidden', 'part', 'of', 'a', 'dendrogram']] | [-0.14834492405961183, 0.09128256824756549, -0.1580434724138203, 0.1758417327337983, -0.10667416348058562, -0.06474018525543877, 0.02083830370313742, 0.3546829762318256, -0.36366195644421334, -0.25810097475451504, 0.14173706641304307, -0.2204043862981383, -0.17013857327401638, 0.20415088015777821, -0.11574593957100826, 0.0036605076589198275, 0.020339213891103016, 0.1180157456758686, -0.06841654800518882, -0.30163118845402176, 0.4167612572835589, -0.004000308373096314, 0.22698603708043016, -0.015161341326099566, 0.08697272196282442, -0.009648106439271942, -0.05893366458423605, 0.03255816106949086, -0.10417130321283449, 0.12704595942473548, 0.40407758563841606, 0.12908831229486334, 0.21710653239014474, -0.3817676256876439, -0.18949978735260878, 0.2010382807903542, 0.16286585129637388, 0.03434781815899028, 0.028683347794206136, -0.31187267296693544, 0.09223184804961254, -0.120732315228617, -0.1439017197593454, -0.11365134848959067, 0.000614040256054564, 0.031561547382311386, -0.17951601297086614, -0.012400874310101657, 0.045620164421217684, 0.10898567002732307, -0.08464046853954312, -0.10090070530317131, -0.08861800333728422, 0.10645496188027953, -0.004329774113350802, 0.07980471244081855, 0.1284952697778036, -0.05628409843881276, -0.1350802471570205, 0.3527964077022096, -0.03046977570788427, -0.2190535426012833, 0.15572889250787822, -0.12243773687144065, -0.20213798562128266, 0.13112294671803035, 0.16973100090928545, 0.13801382137039167, -0.0658058406658132, 0.17482274880471363, -0.08627130910330875, 0.07734016926637692, 0.1075307006963571, 0.0021383088526569986, 0.1980181923136115, 0.10926981513727117, 0.05654511199629104, 0.15678200486317193, -0.03464368464681849, -0.09204191860639681, -0.34348178558899567, -0.13666682548566975, -0.15967208343896677, 0.041223249600575815, -0.17659852608746654, -0.18318178108893335, 0.35596987090750853, 0.0988121847092936, 0.22723250164629213, 0.10479001600337638, 0.20162661871026186, 0.07241065561935432, 0.07749743937430056, 0.056689725617285476, 0.13880627495448358, 0.17010578541984697, -0.003394276607485319, -0.0864889146197873, 0.03388497368260604, 0.17347219800153238] |
707.3537 | Diquark Representations for Singly Heavy Baryons with Light Staggered
Quarks | In the staggered fermion formulation of lattice QCD, we construct diquark
operators which are to be embedded in singly heavy baryons. The group
theoretical connections between continuum and lattice staggered diquark
representations are established.
| hep-lat | in the staggered fermion formulation of lattice qcd we construct diquark operators which are to be embedded in singly heavy baryons the group theoretical connections between continuum and lattice staggered diquark representations are established | [['in', 'the', 'staggered', 'fermion', 'formulation', 'of', 'lattice', 'qcd', 'we', 'construct', 'diquark', 'operators', 'which', 'are', 'to', 'be', 'embedded', 'in', 'singly', 'heavy', 'baryons', 'the', 'group', 'theoretical', 'connections', 'between', 'continuum', 'and', 'lattice', 'staggered', 'diquark', 'representations', 'are', 'established']] | [-0.11345737589084927, 0.32367190305034027, -0.08194808382540941, 0.12770294682944522, -0.08208969082710717, -0.1541745836901314, 0.06651374429245205, 0.4808647783801836, -0.18492167390992537, -0.18655279465019703, -0.008492880274870378, -0.3181647407438825, -0.0418023785631008, -0.056329656214288926, 0.08096578629577861, 0.033118410912506724, 0.03221949559691198, -0.002678384812658324, -0.13615953752442317, -0.28291167128447664, 0.3524431371513535, -0.11110268530490644, 0.2115313773700858, 0.1774435335466799, -0.04462537536507144, -0.046087421586408335, -0.021149112158181035, -0.06147239324362839, -0.021451473236083984, 0.13540627051363974, 0.20396255263510873, -0.08580156685510541, 0.06740507335566423, -0.4169289447805461, -0.21304369397351847, 0.09322961934787385, 0.1918913384570795, 0.1761509600910358, -0.036652745487277996, -0.34482332406675115, 0.13086151049527175, -0.20245006034041152, -0.14986023864099374, -0.19755740803392494, -0.07342157191049088, -0.04165810636956902, -0.31186824191964285, 0.059794488102745486, -0.07313037525369402, 0.09378472170518602, -0.018080492860034984, -0.24595113071229527, -0.09268191812888664, 0.05864005837151233, 0.048216339577372896, 0.10433157317011672, 0.03802169697797474, -0.17539204533814506, -0.17800778717569568, 0.4528574620044845, -0.08181135859066511, -0.2527650843429215, 0.11017410484526087, -0.1153254309833488, -0.13049730831099784, 0.06124598565785324, 0.20298020667670405, 0.06413458342499592, -0.1475988360505332, 0.13893915422308697, -0.16218735932317727, 0.1695500319268938, 0.03439711565699648, 0.11130778386038453, 0.2805922285598867, 0.14041638122323682, -0.025276706937481377, 0.09820057670517332, 0.07930259358630899, -0.253316530793467, -0.3134804006994647, -0.08759592851514325, -0.15044720525004188, 0.010058996568926993, -0.1095241894804263, -0.21266437094549046, 0.355884896372171, 0.08467737615437192, 0.17793574211571148, -0.011990521065479912, 0.22410329941468424, 0.08282245802419151, 0.08290672885692295, 0.11137329650056713, 0.18836955698754856, 0.29644603665698976, 0.061106246745433, -0.3002214001436882, -0.18578604607404592, 0.23987226508667364] |
707.3538 | Bounds on new physics from B_s mixing | I summarize the observables constraining the B_s-B_s-bar mixing complex and
present a new calculation of the element Gamma_{12}^s of the decay matrix.
Gamma_{12}^s enters the prediction of the width difference Delta Gamma_s, for
which we obtain Delta Gamma_s^SM = 0.088 +/- 0.017 ps^(-1), if no new physics
enters B_s-B_s-bar mixing. Applying our formulae to Tevatron data we find a
deviation of the B_s-B_s-bar mixing phase phi_s from its Standard Model value
by 2 standard deviations. I stress that present data do not give any
information on the sign of Delta Gamma_s.
| hep-ph | i summarize the observables constraining the b_sb_sbar mixing complex and present a new calculation of the element gamma_12s of the decay matrix gamma_12s enters the prediction of the width difference delta gamma_s for which we obtain delta gamma_ssm 0088 0017 ps1 if no new physics enters b_sb_sbar mixing applying our formulae to tevatron data we find a deviation of the b_sb_sbar mixing phase phi_s from its standard model value by 2 standard deviations i stress that present data do not give any information on the sign of delta gamma_s | [['i', 'summarize', 'the', 'observables', 'constraining', 'the', 'b_sb_sbar', 'mixing', 'complex', 'and', 'present', 'a', 'new', 'calculation', 'of', 'the', 'element', 'gamma_12s', 'of', 'the', 'decay', 'matrix', 'gamma_12s', 'enters', 'the', 'prediction', 'of', 'the', 'width', 'difference', 'delta', 'gamma_s', 'for', 'which', 'we', 'obtain', 'delta', 'gamma_ssm', '0088', '0017', 'ps1', 'if', 'no', 'new', 'physics', 'enters', 'b_sb_sbar', 'mixing', 'applying', 'our', 'formulae', 'to', 'tevatron', 'data', 'we', 'find', 'a', 'deviation', 'of', 'the', 'b_sb_sbar', 'mixing', 'phase', 'phi_s', 'from', 'its', 'standard', 'model', 'value', 'by', '2', 'standard', 'deviations', 'i', 'stress', 'that', 'present', 'data', 'do', 'not', 'give', 'any', 'information', 'on', 'the', 'sign', 'of', 'delta', 'gamma_s']] | [-0.08994753651892427, 0.20962825600781798, -0.08502474734400907, 0.08533081462585622, -0.06480386091226881, -0.140173515627711, 0.09216368664585223, 0.2613386372950944, -0.2909302685452117, -0.2769309735793451, 0.07449888498575258, -0.33128810657018964, -0.04275666764641011, 0.14692163771013095, 0.010493885016661476, 0.011046949858031108, 0.1051949183774096, -0.018403198892800985, -0.16860115600866266, -0.12364679418334906, 0.25476579720006237, -0.0560852003426672, 0.18024162570575505, 0.08061562696556476, 0.04024795263169587, -0.01512636386112056, -0.05918084558057175, -0.03644326226574115, -0.24314128494577084, 0.04738353604757735, 0.1595268208872188, 0.15737179133363746, 0.14370348093904217, -0.31581934027119796, -0.13089853494999593, 0.16143731423124502, 0.12284521500855176, 0.07805385073747444, -0.05567032035932326, -0.27814056243832136, 0.03545846201119606, -0.1559554782711943, -0.10867654919407373, -0.06114709196051329, 0.02406362060520967, -0.0948714920933443, -0.3565063377080316, 0.15999133243035016, 0.01931761719540439, 0.04424915519087914, 0.06529641916991254, -0.25389882627959276, -0.01867300295006399, 0.10247331329049882, 0.07215922907793852, 0.05433250540756324, 0.08783916019390083, -0.12087325304111635, -0.06801029446069151, 0.3978235802020539, -0.1217492926437196, -0.15836105243017135, 0.01969900410304862, -0.21183917543385178, -0.13201585360696877, 0.10827344788280739, 0.14392193673252637, 0.02471195451752547, -0.15929141458102755, 0.11568889922438591, -0.010256056557409465, 0.23225730443796652, -0.0031607413812625136, 0.03431640697553204, 0.14608087392777883, 0.17776174096136607, 0.036704525888622316, 0.0014623054303228855, -0.13714281317185273, -0.0629029444694011, -0.4251108851961114, -0.1280092513400384, -0.10301750437991525, 0.08269735452449822, -0.15079811095793874, -0.13615875266259536, 0.3916540717896582, 0.15570208847268738, 0.23591420137513938, 0.07238936962014784, 0.28311765096573666, 0.1221614474528575, 0.0640652532721023, 0.05332209290513261, 0.3260241434591907, 0.15793573771952651, 0.12956456843395162, -0.28764634211918083, 0.10478997581363232, 0.04952908153328198] |
707.3539 | Introduction to Quantum Mechanics and the Quantum-Classical transition | In this paper we present a survey of the use of differential geometric
formalisms to describe Quantum Mechanics. We analyze Schroedinger and
Heisenberg frameworks from this perspective and discuss how the momentum map
associated to the action of the unitary group on the Hilbert space allows to
relate both approaches. We also study Weyl-Wigner approach to Quantum Mechanics
and discuss the implications of bi-Hamiltonian structures at the quantum level.
| quant-ph | in this paper we present a survey of the use of differential geometric formalisms to describe quantum mechanics we analyze schroedinger and heisenberg frameworks from this perspective and discuss how the momentum map associated to the action of the unitary group on the hilbert space allows to relate both approaches we also study weylwigner approach to quantum mechanics and discuss the implications of bihamiltonian structures at the quantum level | [['in', 'this', 'paper', 'we', 'present', 'a', 'survey', 'of', 'the', 'use', 'of', 'differential', 'geometric', 'formalisms', 'to', 'describe', 'quantum', 'mechanics', 'we', 'analyze', 'schroedinger', 'and', 'heisenberg', 'frameworks', 'from', 'this', 'perspective', 'and', 'discuss', 'how', 'the', 'momentum', 'map', 'associated', 'to', 'the', 'action', 'of', 'the', 'unitary', 'group', 'on', 'the', 'hilbert', 'space', 'allows', 'to', 'relate', 'both', 'approaches', 'we', 'also', 'study', 'weylwigner', 'approach', 'to', 'quantum', 'mechanics', 'and', 'discuss', 'the', 'implications', 'of', 'bihamiltonian', 'structures', 'at', 'the', 'quantum', 'level']] | [-0.07690151949224157, 0.0699814258116311, -0.13632873072545382, 0.09008967922663019, -0.0808358538787866, -0.08182135666383133, 0.015770112550682457, 0.346067460719496, -0.30841009348522924, -0.23433242084971373, 0.05156401056708579, -0.2564466161743242, -0.22706311919550964, 0.18080943853904805, -0.09428475176294644, 0.05214032012483348, 0.057831319912836174, 0.04667209289914024, -0.1618616333960191, -0.198330401584668, 0.40794655623967235, 0.04212234619552729, 0.2581738396750196, 0.038743950306788844, 0.1568955079841333, 0.03627416116617404, -0.03055138580932997, -0.012893008358820436, -0.20100484571109214, 0.18148524393799945, 0.2597595430046752, 0.10566027248548208, 0.22170958932543147, -0.446270575341971, -0.17727364606116022, 0.07183503566741728, 0.10128981320430404, 0.15921582454356595, 0.022430434207216014, -0.3267052363523323, 0.03338086071923591, -0.17875012069724608, -0.15279569139407165, -0.15150578973301942, -0.011174511218416517, -0.059225929499455335, -0.11445445902105691, 0.0336152846158138, 0.052818830664931, 0.05995035406364047, -0.07188024898346486, -0.0483447191696884, 0.04028553513648069, 0.11412072294405189, -0.008480155975490377, -0.019497755679986913, 0.10886867234375382, -0.12259080065954206, -0.1966315462132511, 0.445322853607544, -0.03219729551178255, -0.21865084797035958, 0.18150323601034674, -0.15120312746992146, -0.19685664837775024, -0.015302308671432886, 0.21266383718213308, 0.0791609381676476, -0.1388131828735704, 0.1740464243702118, -0.01081882757337197, 0.10838951198789089, 0.015171148756896888, 0.07479527248474567, 0.16772292029665972, 0.10350053862709066, 0.04364530713823826, 0.16189289986547353, -0.05987346420432373, -0.2012134805402678, -0.3611480182279711, -0.23467574789580228, -0.1119022666496913, 0.08829961368895095, -0.03086055926510396, -0.11556661712086719, 0.43190725416997855, 0.22968678967352363, 0.20254981513405085, 0.06480820170279754, 0.23875467828812375, 0.13493078951116488, -0.0005881219454433607, 0.024223618465813175, 0.19206755070447706, 0.2090728712686594, 0.09298438010602325, -0.2645773141057757, -0.08797313430535512, 0.10894560043200635] |
707.354 | Mumford dendrograms | An effective $p$-adic encoding of dendrograms is presented through an
explicit embedding into the Bruhat-Tits tree for a $p$-adic number field. This
field depends on the number of children of a vertex and is a finite extension
of the field of $p$-adic numbers. It is shown that fixing $p$-adic
representatives of the residue field allows a natural way of encoding strings
by identifying a given alphabet with such representatives. A simple $p$-adic
hierarchic classification algorithm is derived for $p$-adic numbers, and is
applied to strings over finite alphabets. Examples of DNA coding are presented
and discussed. Finally, new geometric and combinatorial invariants of time
series of $p$-adic dendrograms are developped.
| cs.DM | an effective padic encoding of dendrograms is presented through an explicit embedding into the bruhattits tree for a padic number field this field depends on the number of children of a vertex and is a finite extension of the field of padic numbers it is shown that fixing padic representatives of the residue field allows a natural way of encoding strings by identifying a given alphabet with such representatives a simple padic hierarchic classification algorithm is derived for padic numbers and is applied to strings over finite alphabets examples of dna coding are presented and discussed finally new geometric and combinatorial invariants of time series of padic dendrograms are developped | [['an', 'effective', 'padic', 'encoding', 'of', 'dendrograms', 'is', 'presented', 'through', 'an', 'explicit', 'embedding', 'into', 'the', 'bruhattits', 'tree', 'for', 'a', 'padic', 'number', 'field', 'this', 'field', 'depends', 'on', 'the', 'number', 'of', 'children', 'of', 'a', 'vertex', 'and', 'is', 'a', 'finite', 'extension', 'of', 'the', 'field', 'of', 'padic', 'numbers', 'it', 'is', 'shown', 'that', 'fixing', 'padic', 'representatives', 'of', 'the', 'residue', 'field', 'allows', 'a', 'natural', 'way', 'of', 'encoding', 'strings', 'by', 'identifying', 'a', 'given', 'alphabet', 'with', 'such', 'representatives', 'a', 'simple', 'padic', 'hierarchic', 'classification', 'algorithm', 'is', 'derived', 'for', 'padic', 'numbers', 'and', 'is', 'applied', 'to', 'strings', 'over', 'finite', 'alphabets', 'examples', 'of', 'dna', 'coding', 'are', 'presented', 'and', 'discussed', 'finally', 'new', 'geometric', 'and', 'combinatorial', 'invariants', 'of', 'time', 'series', 'of', 'padic', 'dendrograms', 'are', 'developped']] | [-0.20838661702582612, 0.11178555774147919, -0.15912441921589726, 0.09495020771653137, -0.12718573634258726, -0.11312098183923147, 0.041227959731424395, 0.2935552669181065, -0.3240249682217836, -0.26805156824940984, 0.053837029696759686, -0.19135200911511097, -0.15640753954648973, 0.25183853417296304, -0.12076898718845439, 0.028451909649778496, 0.003762403857597912, 0.17795488014817237, -0.016025400672846114, -0.3334004561840133, 0.3485276058824225, 0.011377766605635936, 0.22462965378707106, 0.0018062962507511575, 0.13827260777523573, 0.043694913625420835, -0.07289459242654794, -0.007302788750861179, -0.10666532503601048, 0.14131057601930067, 0.3353345171887089, 0.12397955092178149, 0.23206560535525733, -0.3861514792946929, -0.17464669213037598, 0.14913118370723996, 0.16156970672309398, 0.10326039826666766, -0.05787611599186097, -0.2562757928495888, 0.13244956805032085, -0.1694860546003011, -0.058232341668653216, -0.09845895158465613, 0.09510066582482647, 0.05284191202795641, -0.27345486485653303, -0.046192585257019594, 0.020923549559136684, 0.186720003136857, -0.06846823224173436, -0.14155136841899632, 0.017127990561791442, 0.09198588608679446, 0.02546603702384428, 0.08832253277809783, 0.10865343528037721, -0.09461935512742704, -0.15052746539004147, 0.355067993903702, -0.03252829267823307, -0.22857653327624905, 0.14626618276392533, -0.06363273442045532, -0.17755947025408123, 0.1300201863304458, 0.10723214776001193, 0.14885218904184347, -0.07051364500075578, 0.1701695890441029, -0.10100324221632698, 0.12251138271636922, 0.1325479614040391, -0.02268034984696318, 0.18319832791828297, 0.12187599832700058, 0.022376692671836777, 0.20254185804250566, -0.01749491369383494, -0.08790334604511207, -0.3325614563819148, -0.1816668458113616, -0.18576720309951766, 0.037835521367378534, -0.17006977144999175, -0.20894806984129405, 0.43934705690904097, 0.08154946024614301, 0.16302221057862468, 0.15997529883911324, 0.21869067450011656, 0.09999306339939887, 0.06647671298547224, 0.03251560945487158, 0.015511528453366324, 0.2248702961041338, -0.06051906541688368, -0.14556114861360667, -0.03074784669813446, 0.18712285230020909] |
707.3541 | Security analysis of decoy state quantum key distribution incorporating
finite statistics | Decoy state method quantum key distribution (QKD) is one of the promising
practical solutions to BB84 QKD with coherent light pulses. In the real world,
however, statistical fluctuations with the finite code length cannot be
negligible, and the securities of theoretical and experimental researches of
the decoy method state QKD so far are based on the asymptotic GLLP's formula
which guarantees only that the limit of eavesdropper's information becomes zero
as the code length approaches infinity. In this paper, we propose a
substantially improved decoy state QKD in the framework of the finite code
length and derive the upper bound of eavesdropper's information in the finite
code length decoy state QKD with arbitrary number of decoy states of different
intensities incorporating the finite statistics. We also show the performance
of our decoy QKD and optimal values of parameters by numerical simulation.
| quant-ph | decoy state method quantum key distribution qkd is one of the promising practical solutions to bb84 qkd with coherent light pulses in the real world however statistical fluctuations with the finite code length cannot be negligible and the securities of theoretical and experimental researches of the decoy method state qkd so far are based on the asymptotic gllps formula which guarantees only that the limit of eavesdroppers information becomes zero as the code length approaches infinity in this paper we propose a substantially improved decoy state qkd in the framework of the finite code length and derive the upper bound of eavesdroppers information in the finite code length decoy state qkd with arbitrary number of decoy states of different intensities incorporating the finite statistics we also show the performance of our decoy qkd and optimal values of parameters by numerical simulation | [['decoy', 'state', 'method', 'quantum', 'key', 'distribution', 'qkd', 'is', 'one', 'of', 'the', 'promising', 'practical', 'solutions', 'to', 'bb84', 'qkd', 'with', 'coherent', 'light', 'pulses', 'in', 'the', 'real', 'world', 'however', 'statistical', 'fluctuations', 'with', 'the', 'finite', 'code', 'length', 'can', 'not', 'be', 'negligible', 'and', 'the', 'securities', 'of', 'theoretical', 'and', 'experimental', 'researches', 'of', 'the', 'decoy', 'method', 'state', 'qkd', 'so', 'far', 'are', 'based', 'on', 'the', 'asymptotic', 'gllps', 'formula', 'which', 'guarantees', 'only', 'that', 'the', 'limit', 'of', 'eavesdroppers', 'information', 'becomes', 'zero', 'as', 'the', 'code', 'length', 'approaches', 'infinity', 'in', 'this', 'paper', 'we', 'propose', 'a', 'substantially', 'improved', 'decoy', 'state', 'qkd', 'in', 'the', 'framework', 'of', 'the', 'finite', 'code', 'length', 'and', 'derive', 'the', 'upper', 'bound', 'of', 'eavesdroppers', 'information', 'in', 'the', 'finite', 'code', 'length', 'decoy', 'state', 'qkd', 'with', 'arbitrary', 'number', 'of', 'decoy', 'states', 'of', 'different', 'intensities', 'incorporating', 'the', 'finite', 'statistics', 'we', 'also', 'show', 'the', 'performance', 'of', 'our', 'decoy', 'qkd', 'and', 'optimal', 'values', 'of', 'parameters', 'by', 'numerical', 'simulation']] | [-0.17081707645973837, 0.15076960271541426, -0.145047762441112, 0.06470721637861512, 0.033355986593779946, -0.2551332899197566, 0.0988977429851665, 0.34637846770623687, -0.2127252965686671, -0.2707184041140579, 0.0675680308853745, -0.24602351419905083, -0.04857995030916038, 0.24983452033443074, -0.10130133213977335, 0.15342661044455103, 0.07932232937392455, 0.03692185199746849, -0.030034305931544526, -0.2905966306620456, 0.31681351733545887, 0.07166338287515182, 0.38998840549789, 0.06509711266435841, 0.10952887205771956, 0.002317752424918168, 0.009414178769249496, -0.0869902956112889, -0.14170986529075785, 0.10508967539194826, 0.2969451127375694, 0.14928135568117526, 0.2825723512904018, -0.39154308549531386, -0.22541563284206897, 0.10494566188649611, 0.17032732771307474, 0.2284909160634344, -0.022670558889079442, -0.3229149281450197, 0.06945082280414959, -0.2334686372138507, -0.12968210666605556, -0.018105318981176573, -0.05787914187204859, 0.06466155444645053, -0.2322779762664321, 0.02169322010260967, 0.037406863017232284, 0.06053114566660539, 0.010280989657043882, -0.11538401612655279, 0.009703938707260164, 0.14590134145031478, 0.030012073099335776, -0.03159852497484403, 0.12256438266618032, -0.1041070466369047, -0.13223815271762987, 0.2818206933439306, -0.06475999980755415, -0.22399734020074633, 0.08879526101620595, -0.09280889838973576, -0.08918767999725562, 0.12424503629928098, 0.15575757577473706, 0.1025538601588907, -0.08983326922352458, 0.04871065963343684, -0.06199929784943766, 0.2424976040232689, 0.03619808621427163, 0.15576674084423492, 0.11044066307689757, 0.13063505451122287, 0.07254391472707404, 0.13307370819359463, -0.11242363302710842, -0.16651742390839133, -0.30904668247234734, -0.17168615351419514, -0.2792675118688626, 0.0565334902565426, -0.12290645190242162, -0.1412837030200935, 0.3814341280054539, 0.23463950821707116, 0.09918182890148873, 0.09184796677271552, 0.42477195276647595, 0.07761677459265429, 0.023137932029017743, 0.13042899110974332, 0.2120085216807664, 0.12312541696480772, 0.02006974219549315, -0.21231171433278856, 0.1482764062742498, -0.002691937227409782] |
707.3542 | Electron-hole contribution to the apparent s-d exchange interaction in
III-V diluted magnetic semiconductors | Spin splitting of photoelectrons in p-type and electrons in n-type III-V
Mn-based diluted magnetic semiconductors is studied theoretically. It is
demonstrated that the unusual sign and magnitude of the apparent s-d exchange
integral reported for GaAs:Mn arises from exchange interactions between
electrons and holes bound to Mn acceptors. This interaction dominates over the
coupling between electrons and Mn spins, so far regarded as the main source of
spin-dependent phenomena. A reduced magnitude of the apparent s-d exchange
integral found in n-type materials is explained by the presence of repulsive
Coulomb potentials at ionized Mn acceptors and a bottleneck effect.
| cond-mat.mtrl-sci cond-mat.str-el | spin splitting of photoelectrons in ptype and electrons in ntype iiiv mnbased diluted magnetic semiconductors is studied theoretically it is demonstrated that the unusual sign and magnitude of the apparent sd exchange integral reported for gaasmn arises from exchange interactions between electrons and holes bound to mn acceptors this interaction dominates over the coupling between electrons and mn spins so far regarded as the main source of spindependent phenomena a reduced magnitude of the apparent sd exchange integral found in ntype materials is explained by the presence of repulsive coulomb potentials at ionized mn acceptors and a bottleneck effect | [['spin', 'splitting', 'of', 'photoelectrons', 'in', 'ptype', 'and', 'electrons', 'in', 'ntype', 'iiiv', 'mnbased', 'diluted', 'magnetic', 'semiconductors', 'is', 'studied', 'theoretically', 'it', 'is', 'demonstrated', 'that', 'the', 'unusual', 'sign', 'and', 'magnitude', 'of', 'the', 'apparent', 'sd', 'exchange', 'integral', 'reported', 'for', 'gaasmn', 'arises', 'from', 'exchange', 'interactions', 'between', 'electrons', 'and', 'holes', 'bound', 'to', 'mn', 'acceptors', 'this', 'interaction', 'dominates', 'over', 'the', 'coupling', 'between', 'electrons', 'and', 'mn', 'spins', 'so', 'far', 'regarded', 'as', 'the', 'main', 'source', 'of', 'spindependent', 'phenomena', 'a', 'reduced', 'magnitude', 'of', 'the', 'apparent', 'sd', 'exchange', 'integral', 'found', 'in', 'ntype', 'materials', 'is', 'explained', 'by', 'the', 'presence', 'of', 'repulsive', 'coulomb', 'potentials', 'at', 'ionized', 'mn', 'acceptors', 'and', 'a', 'bottleneck', 'effect']] | [-0.16976451389303412, 0.18825153291526467, 0.053203418767996925, 0.138703250610787, 0.027343591374128756, -0.1859315056118625, 0.07719500261274251, 0.4008799837808115, -0.2763380133593925, -0.3484617807723657, -0.10124809423701442, -0.3706906202126934, -0.07778581570965623, 0.1579089156267318, 0.07844730530573864, -0.12260762654771709, -0.01362565165383252, -0.06236894131459371, -0.09949556200746258, -0.20769101330620057, 0.24084634407446368, 0.02959105276944812, 0.24919300187717786, 0.1544888128968652, 0.06760775353383235, 0.06402501686137509, 0.12356239655102143, 0.017397134856443213, -0.07641792800925694, 0.07036715246398341, 0.2613850888999584, -0.16836531127266813, 0.17628455868536475, -0.44766735874417457, -0.19491493639199892, 0.015492880382960794, 0.18696951344044824, 0.11427414546146838, -0.12540917245276045, -0.27249886232870396, 0.0039094764588758196, -0.1535739422131405, -0.10231257746033746, 0.03656268851699853, 0.05674164321813309, 0.014444347588589998, -0.2506527567112988, 0.1336933137905417, 0.11868433763432984, 0.03296567409327536, -0.1070744752498212, -0.17120825017642494, -0.07623390502042392, 0.04360684907684723, 0.10656092055565254, 0.02892647007706039, 0.1762041987409119, -0.07784078113800573, -0.13079244803844225, 0.3585092208414066, -0.07809253403860511, -0.08235440257586295, 0.17496810388055187, -0.18338049654942948, -0.0028970134820826728, 0.18669035617788934, 0.07889697545518477, 0.128462761287775, -0.1615069060059584, 0.1498146346420981, 0.04211781919943263, 0.14575674771001995, 0.033123905667000346, 0.10493164617248406, 0.23804573791872974, 0.16404562163157294, 0.042497311963351686, 0.11246750086329577, -0.11520727056859419, -0.05234578292995616, -0.1624079797139998, -0.17498026952686052, -0.27548394819857985, 0.1375950682071047, -0.06174150110158312, -0.1514339278913056, 0.3373974942913246, 0.10507135736906544, 0.10972452226019642, -0.1308537256678171, 0.2578581408005531, 0.11554145773360035, 0.1084834704918768, 0.028195113616271153, 0.31386451981961727, 0.21176081387363752, 0.10935601882161479, -0.3080649514226337, 0.12231412939633234, 0.020250392155815856] |
707.3543 | Quantisation of Hopping Magnetoresistance Prefactor in Strongly
Correlated Two-Dimensional Electron Systems | We report an universal behaviour of hopping transport in strongly interacting
mesoscopic two-dimensional electron systems (2DES). In a certain window of
background disorder, the resistivity at low perpendicular magnetic fields
follows the expected relation $\rho(B_\perp) = \rho_{\rm{B}}\exp(\alpha
B_\perp^2)$. The prefactor $\rho_{\rm{B}}$ decreases exponentially with
increasing electron density but saturates to a finite value at higher
densities. Strikingly, this value is found to be universal when expressed in
terms of absolute resistance and and shows quantisation at $R_{\rm{B}}\approx
h/e^2$ and $R_{\rm{B}}\approx 1/2$ $ h/e^2$. We suggest a strongly correlated
electronic phase as a possible explanation.
| cond-mat.mes-hall cond-mat.str-el | we report an universal behaviour of hopping transport in strongly interacting mesoscopic twodimensional electron systems 2des in a certain window of background disorder the resistivity at low perpendicular magnetic fields follows the expected relation rhob_perp rho_rmbexpalpha b_perp2 the prefactor rho_rmb decreases exponentially with increasing electron density but saturates to a finite value at higher densities strikingly this value is found to be universal when expressed in terms of absolute resistance and and shows quantisation at r_rmbapprox he2 and r_rmbapprox 12 he2 we suggest a strongly correlated electronic phase as a possible explanation | [['we', 'report', 'an', 'universal', 'behaviour', 'of', 'hopping', 'transport', 'in', 'strongly', 'interacting', 'mesoscopic', 'twodimensional', 'electron', 'systems', '2des', 'in', 'a', 'certain', 'window', 'of', 'background', 'disorder', 'the', 'resistivity', 'at', 'low', 'perpendicular', 'magnetic', 'fields', 'follows', 'the', 'expected', 'relation', 'rhob_perp', 'rho_rmbexpalpha', 'b_perp2', 'the', 'prefactor', 'rho_rmb', 'decreases', 'exponentially', 'with', 'increasing', 'electron', 'density', 'but', 'saturates', 'to', 'a', 'finite', 'value', 'at', 'higher', 'densities', 'strikingly', 'this', 'value', 'is', 'found', 'to', 'be', 'universal', 'when', 'expressed', 'in', 'terms', 'of', 'absolute', 'resistance', 'and', 'and', 'shows', 'quantisation', 'at', 'r_rmbapprox', 'he2', 'and', 'r_rmbapprox', '12', 'he2', 'we', 'suggest', 'a', 'strongly', 'correlated', 'electronic', 'phase', 'as', 'a', 'possible', 'explanation']] | [-0.18531601426148808, 0.2820043923273407, -0.0543311792184952, 0.039569300877722514, 0.017743205338523818, -0.18970913011794802, 0.05414823601397033, 0.32372340643691466, -0.2691837870141213, -0.2911446878322582, -0.01104196222986084, -0.32752155013724993, -0.10304758674732742, 0.19141646515813537, 0.010306923893071583, -0.010219387303309879, -0.03845952864704204, 0.04262215124935597, -0.12419990936211235, -0.20071929065917415, 0.2492067201127266, 0.07942722409685281, 0.3425362241379489, 0.1299288382368355, 0.08071323794623216, -0.02397662236076919, 0.05854499776012682, 0.10215865185848255, -0.14095688123662753, 0.002954655005757151, 0.23805259431487527, -0.09262966428851259, 0.2141151708047623, -0.37748789301291963, -0.1750217611077188, 0.021329289216591024, 0.19001846596727084, 0.11347942819133744, -0.031193044625393962, -0.18734569676841298, 0.022464969630979388, -0.15539959327842312, -0.18704716594228735, -0.04264443921963631, 0.06639623453027044, -0.0044845147486562015, -0.25820986687837316, 0.1886564096992557, 0.012129972770478276, 0.09400896171386215, -0.08553327427576189, -0.1277776959823209, -0.028337563302410745, 0.023549475352849875, 0.045815658758276666, 0.10079041538203413, 0.21556779005746732, -0.17294109995134346, -0.06756811556888037, 0.3404287365318715, -0.09520439468003039, -0.10236937072042418, 0.1983024958874388, -0.2524569737564387, -0.08053328516497009, 0.18847196735441685, 0.10395028254274151, 0.07452883949267795, -0.09746107108032614, 0.05641698980825718, 0.010867965633809653, 0.18014244992157508, 0.01151331301093444, 0.09622929917766188, 0.24274364787678437, 0.169758331177799, 0.08352254349845407, 0.1304987143315696, -0.08151682916943026, -0.05709852037975436, -0.2621547804781418, -0.15507910023282828, -0.1988959865692746, 0.13327835376063982, -0.07930036796870422, -0.2093555215617706, 0.3649989403891324, 0.13733964123302836, 0.2302212269826867, 0.03239887688929836, 0.21532306439061275, 0.22138772934712683, 0.024932416808930623, 0.07881458684930513, 0.20840740101358415, 0.16040753943567304, 0.12302374407306485, -0.28426119831294333, 0.07952945750613494, -0.0003634297018656614] |
707.3544 | Strong orientational effect of stretched aerogel on the 3He order
parameter | Deformation of aerogel strongly modifies the orientation of the order
parameter of superfluid 3He confined in aerogel. We used a radial squeezing of
aerogel to keep the orbital angular momentum of the 3He Cooper pairs in the
plane perpendicular to the magnetic field. We did not find strong evidence for
a "polar" phase, with a nodal line along the equator of the Fermi surface,
predicted to occur at large radial squeezing. Instead we observed 3He-A with a
clear experimental evidence of the destruction of the long-range order by
random anisotropy -- the Larkin-Imry-Ma effect. In 3He-B we observed and
identified new modes of NMR, which are impossible to obtain in bulk 3He-B. One
of these modes is characterized by a repulsive interaction between magnons,
which is suitable for the magnon Bose-Einstein condensation (BEC).
| cond-mat.soft cond-mat.dis-nn nlin.AO | deformation of aerogel strongly modifies the orientation of the order parameter of superfluid 3he confined in aerogel we used a radial squeezing of aerogel to keep the orbital angular momentum of the 3he cooper pairs in the plane perpendicular to the magnetic field we did not find strong evidence for a polar phase with a nodal line along the equator of the fermi surface predicted to occur at large radial squeezing instead we observed 3hea with a clear experimental evidence of the destruction of the longrange order by random anisotropy the larkinimryma effect in 3heb we observed and identified new modes of nmr which are impossible to obtain in bulk 3heb one of these modes is characterized by a repulsive interaction between magnons which is suitable for the magnon boseeinstein condensation bec | [['deformation', 'of', 'aerogel', 'strongly', 'modifies', 'the', 'orientation', 'of', 'the', 'order', 'parameter', 'of', 'superfluid', '3he', 'confined', 'in', 'aerogel', 'we', 'used', 'a', 'radial', 'squeezing', 'of', 'aerogel', 'to', 'keep', 'the', 'orbital', 'angular', 'momentum', 'of', 'the', '3he', 'cooper', 'pairs', 'in', 'the', 'plane', 'perpendicular', 'to', 'the', 'magnetic', 'field', 'we', 'did', 'not', 'find', 'strong', 'evidence', 'for', 'a', 'polar', 'phase', 'with', 'a', 'nodal', 'line', 'along', 'the', 'equator', 'of', 'the', 'fermi', 'surface', 'predicted', 'to', 'occur', 'at', 'large', 'radial', 'squeezing', 'instead', 'we', 'observed', '3hea', 'with', 'a', 'clear', 'experimental', 'evidence', 'of', 'the', 'destruction', 'of', 'the', 'longrange', 'order', 'by', 'random', 'anisotropy', 'the', 'larkinimryma', 'effect', 'in', '3heb', 'we', 'observed', 'and', 'identified', 'new', 'modes', 'of', 'nmr', 'which', 'are', 'impossible', 'to', 'obtain', 'in', 'bulk', '3heb', 'one', 'of', 'these', 'modes', 'is', 'characterized', 'by', 'a', 'repulsive', 'interaction', 'between', 'magnons', 'which', 'is', 'suitable', 'for', 'the', 'magnon', 'boseeinstein', 'condensation', 'bec']] | [-0.20741649258839476, 0.28347984872137505, -0.07393180780204464, 0.030998669876928696, -0.06695539163863004, -0.10051032883171557, 0.0417466290510316, 0.3573223968772006, -0.2170852444813301, -0.26215857217285893, -0.04469405995526662, -0.2717779850671915, -0.04911543959645893, 0.16495632972906937, 0.05086181095490853, 0.0399985878206225, -0.03801497713324021, 0.015074147553550023, -0.10184498472054573, -0.20261104077375916, 0.31372082723608014, -0.004816342483867298, 0.307256979585597, 0.07558433702003887, 0.04977326810529286, -0.01743943721168872, 0.05354068753006162, 0.03025015521614643, -0.18924175751409633, 0.05345822345098537, 0.21806963573423369, -0.08034872536716814, 0.15439096585649884, -0.43160161929148616, -0.1873959690247747, 0.09549699119419199, 0.1880977060116658, 0.19183870399843506, -0.037333329264639004, -0.2938009607393972, -0.008980765388431873, -0.15951895905715047, -0.19468752895905214, -0.08973632777236741, 0.04509832572181371, 0.010821927070730564, -0.23769568324187826, 0.1367830322018232, 0.1215778597997445, 0.10049389491817265, -0.09215961073553472, -0.06408413641408763, -0.08825643125526933, 0.02827861962600075, 0.08007090329898126, 0.08759209768719632, 0.11943333214113602, -0.12535008894866967, -0.056450627581921944, 0.3626311614961279, -0.08652259568264002, -0.12189809364534801, 0.16134490270280477, -0.2345972277530977, -0.0359529825668274, 0.20560205764504094, 0.1573210140883351, 0.06377711949982878, -0.08726365521028073, -0.005375163725340936, -0.051193608793034924, 0.17729105892111408, 0.0848028290078439, 0.048291599307435026, 0.30267233757132833, 0.14807447735714077, 0.028288377053809887, 0.16923052765416674, -0.20515956145556463, -0.061075577731103156, -0.27244867381435167, -0.178085199634855, -0.22803232649245977, -0.020373410996729614, -0.03812445091270175, -0.18211760565772597, 0.37316724709870125, 0.10767870702406843, 0.21496525326757832, -0.08229534766922536, 0.2561116454113896, 0.07153703874880166, 0.09135091833939607, 0.06517148892056536, 0.3328122563631923, 0.18422569811809808, 0.10700100284972877, -0.30648659063136263, 0.03774836357633555, 0.023616842685662436] |
707.3545 | Exchangeable Random Networks | We introduce and study a class of exchangeable random graph ensembles. They
can be used as statistical null models for empirical networks, and as a tool
for theoretical investigations. We provide general theorems that carachterize
the degree distribution of the ensemble graphs, together with some features
that are important for applications, such as subgraph distributions and kernel
of the adjacency matrix. These results are used to compare to other models of
simple and complex networks. A particular case of directed networks with
power-law out--degree is studied in more detail, as an example of the
flexibility of the model in applications.
| math.PR math.ST stat.TH | we introduce and study a class of exchangeable random graph ensembles they can be used as statistical null models for empirical networks and as a tool for theoretical investigations we provide general theorems that carachterize the degree distribution of the ensemble graphs together with some features that are important for applications such as subgraph distributions and kernel of the adjacency matrix these results are used to compare to other models of simple and complex networks a particular case of directed networks with powerlaw outdegree is studied in more detail as an example of the flexibility of the model in applications | [['we', 'introduce', 'and', 'study', 'a', 'class', 'of', 'exchangeable', 'random', 'graph', 'ensembles', 'they', 'can', 'be', 'used', 'as', 'statistical', 'null', 'models', 'for', 'empirical', 'networks', 'and', 'as', 'a', 'tool', 'for', 'theoretical', 'investigations', 'we', 'provide', 'general', 'theorems', 'that', 'carachterize', 'the', 'degree', 'distribution', 'of', 'the', 'ensemble', 'graphs', 'together', 'with', 'some', 'features', 'that', 'are', 'important', 'for', 'applications', 'such', 'as', 'subgraph', 'distributions', 'and', 'kernel', 'of', 'the', 'adjacency', 'matrix', 'these', 'results', 'are', 'used', 'to', 'compare', 'to', 'other', 'models', 'of', 'simple', 'and', 'complex', 'networks', 'a', 'particular', 'case', 'of', 'directed', 'networks', 'with', 'powerlaw', 'outdegree', 'is', 'studied', 'in', 'more', 'detail', 'as', 'an', 'example', 'of', 'the', 'flexibility', 'of', 'the', 'model', 'in', 'applications']] | [-0.04871328130265641, 0.07180284603508871, -0.07115400354895327, 0.12192287258074778, -0.05385049554105434, -0.14520094341908893, -0.011371144970803701, 0.45954708040061626, -0.23779302322766696, -0.2853999071839181, 0.10930872564157, -0.28973867095574135, -0.21887483467545474, 0.20029445671514054, -0.050278753808915916, 0.09952549626956685, 0.09932646003899852, 0.06155610099379585, -0.008887993944385513, -0.2007418806806343, 0.32777426353270056, 0.06664204272921338, 0.24947825188964906, 0.04463547174207339, 0.05062857253778011, 0.002245770931958851, -0.002865541552315758, 0.08541759733002482, -0.11051767425346447, 0.16011152754457947, 0.2629358397425309, 0.16081952138079536, 0.24903168915441692, -0.41962482834780457, -0.27507514158508395, 0.1905714330084697, 0.13033195599123384, 0.08990182078236507, -0.024963368605992832, -0.23935007542193013, 0.11491862723058222, -0.17021461828236087, -0.13447873839741628, -0.13767587420097882, 0.01577866935839105, 0.09897344413853128, -0.3012075708106612, 0.040245560035485815, 0.11104817359209662, 0.05638742862702018, 0.026211211420219354, -0.16457851174536792, 0.009157444223422895, 0.15580984486285784, 0.01306699621467616, -0.020743100826318066, 0.0904184232249555, -0.15567247082733296, -0.179999591904984, 0.3784226542244656, -0.050226278292636074, -0.19571670784022321, 0.19926674092056776, -0.0682007037479468, -0.20995565349555978, 0.01657822684883469, 0.22656577244175202, 0.11959061385931993, -0.15367833265300954, 0.04542633682028437, -0.06188528501485108, 0.08680421770126982, 0.017090264124551204, 0.043053599416085456, 0.1574044330045581, 0.16615949599589738, 0.05660771043275041, 0.17784338683593134, -0.046940313576899394, -0.09580883081306261, -0.2780554158932934, -0.1352190156090967, -0.2100491737664649, 0.03820516392024177, -0.17354115886517302, -0.19212698705042852, 0.43342087754622255, 0.15012446125661202, 0.23701037011212772, 0.11527665862531374, 0.22510915838483006, 0.08665322320479335, 0.04210153191510325, 0.06795396111820909, 0.1370149392583478, 0.1933698948529182, 0.06451346644793045, -0.08342007791265996, 0.08210760481288713, 0.031636711586304385] |
707.3546 | Singular point characterization in microscopic flows | We suggest an approach to microrheology based on optical traps in order to
measure fluid fluxes around singular points of fluid flows. We experimentally
demonstrate this technique, applying it to the characterization of controlled
flows produced by a set of birefringent spheres spinning due to the transfer of
light angular momentum. Unlike the previous techniques, this method is able to
distinguish between a singular point in a complex flow and the absence of flow
at all; furthermore it permits us to characterize the stability of the singular
point.
| physics.optics physics.flu-dyn | we suggest an approach to microrheology based on optical traps in order to measure fluid fluxes around singular points of fluid flows we experimentally demonstrate this technique applying it to the characterization of controlled flows produced by a set of birefringent spheres spinning due to the transfer of light angular momentum unlike the previous techniques this method is able to distinguish between a singular point in a complex flow and the absence of flow at all furthermore it permits us to characterize the stability of the singular point | [['we', 'suggest', 'an', 'approach', 'to', 'microrheology', 'based', 'on', 'optical', 'traps', 'in', 'order', 'to', 'measure', 'fluid', 'fluxes', 'around', 'singular', 'points', 'of', 'fluid', 'flows', 'we', 'experimentally', 'demonstrate', 'this', 'technique', 'applying', 'it', 'to', 'the', 'characterization', 'of', 'controlled', 'flows', 'produced', 'by', 'a', 'set', 'of', 'birefringent', 'spheres', 'spinning', 'due', 'to', 'the', 'transfer', 'of', 'light', 'angular', 'momentum', 'unlike', 'the', 'previous', 'techniques', 'this', 'method', 'is', 'able', 'to', 'distinguish', 'between', 'a', 'singular', 'point', 'in', 'a', 'complex', 'flow', 'and', 'the', 'absence', 'of', 'flow', 'at', 'all', 'furthermore', 'it', 'permits', 'us', 'to', 'characterize', 'the', 'stability', 'of', 'the', 'singular', 'point']] | [-0.11664808779394, 0.07805834554909036, -0.1334796567309902, 0.0024879947503160856, -0.040674284359821206, -0.09645829701118848, 0.047373866704715925, 0.3660629099573601, -0.2802308339265768, -0.2665561076295985, 0.06073498360505751, -0.2760999152616767, -0.13976938240441747, 0.22568075319180603, -0.06522975490555506, 0.08197439493696121, 0.01908496202535885, -0.012645520481534979, -0.04784769643182782, -0.1720276374888437, 0.3468781132251024, 0.03279583071443168, 0.2936848424459723, 0.05598536186153069, 0.13395709750792859, 0.0035546628271483564, -0.04813081414481117, 0.055642512288283215, -0.14850527866722338, 0.15140712088693611, 0.1979228098008951, 0.02293843977597796, 0.20189166030931202, -0.40296315763738344, -0.2304503945739601, 0.14050747228744018, 0.12098706619475376, 0.1298166526566175, -0.002765245181349614, -0.23565112695690582, 0.09562081176012395, -0.13611639762000943, -0.1913257222569717, -0.14045035811564463, -0.02021761414785446, 0.011936737679537724, -0.2532494292668575, 0.049209132049740714, 0.06492743939121613, 0.0402176505568522, -0.07120413022824902, 0.002133596651467749, -0.024706407436910507, 0.10283478180115874, 0.055994373722404074, 0.010732001349837943, 0.14906935026572848, -0.11391173856893809, -0.07693651172501798, 0.39009293280700647, -0.06196936072427144, -0.2261682577928613, 0.24087913352625698, -0.16265749142357064, -0.05250402212418108, 0.17890491188419136, 0.20461719114841384, 0.16801023511321878, -0.13568088627124036, 0.0013734186336064754, -0.02933958958601579, 0.14496386570086048, 0.10068083933385258, -0.03833785976960578, 0.23976500939831816, 0.14339121558639983, 0.1002570865675807, 0.15866640785878355, -0.12943407146270725, -0.09755947947269306, -0.2696066447639499, -0.15697269774550063, -0.18682181322021113, 0.05942540282293604, -0.06995354689619986, -0.17071078105998988, 0.3706647132097384, 0.1896282912242565, 0.2236628123474392, -0.012224091322753917, 0.3165789301909337, 0.06512397975777938, 0.053130765237834894, 0.08598901116056368, 0.2875048378548606, 0.15837736013186673, 0.14376925177004357, -0.2437239463628926, -0.02223660700573501, 0.08928526810963046] |
707.3547 | Detecting spatial patterns with the cumulant function. Part II: An
application to El Nino | The spatial coherence of a measured variable (e.g. temperature or pressure)
is often studied to determine the regions where this variable varies the most
or to find teleconnections, i.e. correlations between specific regions. While
usual methods to find spatial patterns, such as Principal Components Analysis
(PCA), are constrained by linear symmetries, the dependence of variables such
as temperature or pressure at different locations is generally nonlinear. In
particular, large deviations from the sample mean are expected to be strongly
affected by such nonlinearities. Here we apply a newly developed nonlinear
technique (Maxima of Cumulant Function, MCF) for the detection of typical
spatial patterns that largely deviate from the mean. In order to test the
technique and to introduce the methodology, we focus on the El Nino/Southern
Oscillation and its spatial patterns. We find nonsymmetric temperature patterns
corresponding to El Nino and La Nina, and we compare the results of MCF with
other techniques, such as the symmetric solutions of PCA, and the nonsymmetric
solutions of Nonlinear PCA (NLPCA). We found that MCF solutions are more
reliable than the NLPCA fits, and can capture mixtures of principal components.
Finally, we apply Extreme Value Theory on the temporal variations extracted
from our methodology. We find that the tails of the distribution of extreme
temperatures during La Nina episodes is bounded, while the tail during El Ninos
is less likely to be bounded. This implies that the mean spatial patterns of
the two phases are asymmetric, as well as the behaviour of their extremes.
| physics.data-an physics.geo-ph | the spatial coherence of a measured variable eg temperature or pressure is often studied to determine the regions where this variable varies the most or to find teleconnections ie correlations between specific regions while usual methods to find spatial patterns such as principal components analysis pca are constrained by linear symmetries the dependence of variables such as temperature or pressure at different locations is generally nonlinear in particular large deviations from the sample mean are expected to be strongly affected by such nonlinearities here we apply a newly developed nonlinear technique maxima of cumulant function mcf for the detection of typical spatial patterns that largely deviate from the mean in order to test the technique and to introduce the methodology we focus on the el ninosouthern oscillation and its spatial patterns we find nonsymmetric temperature patterns corresponding to el nino and la nina and we compare the results of mcf with other techniques such as the symmetric solutions of pca and the nonsymmetric solutions of nonlinear pca nlpca we found that mcf solutions are more reliable than the nlpca fits and can capture mixtures of principal components finally we apply extreme value theory on the temporal variations extracted from our methodology we find that the tails of the distribution of extreme temperatures during la nina episodes is bounded while the tail during el ninos is less likely to be bounded this implies that the mean spatial patterns of the two phases are asymmetric as well as the behaviour of their extremes | [['the', 'spatial', 'coherence', 'of', 'a', 'measured', 'variable', 'eg', 'temperature', 'or', 'pressure', 'is', 'often', 'studied', 'to', 'determine', 'the', 'regions', 'where', 'this', 'variable', 'varies', 'the', 'most', 'or', 'to', 'find', 'teleconnections', 'ie', 'correlations', 'between', 'specific', 'regions', 'while', 'usual', 'methods', 'to', 'find', 'spatial', 'patterns', 'such', 'as', 'principal', 'components', 'analysis', 'pca', 'are', 'constrained', 'by', 'linear', 'symmetries', 'the', 'dependence', 'of', 'variables', 'such', 'as', 'temperature', 'or', 'pressure', 'at', 'different', 'locations', 'is', 'generally', 'nonlinear', 'in', 'particular', 'large', 'deviations', 'from', 'the', 'sample', 'mean', 'are', 'expected', 'to', 'be', 'strongly', 'affected', 'by', 'such', 'nonlinearities', 'here', 'we', 'apply', 'a', 'newly', 'developed', 'nonlinear', 'technique', 'maxima', 'of', 'cumulant', 'function', 'mcf', 'for', 'the', 'detection', 'of', 'typical', 'spatial', 'patterns', 'that', 'largely', 'deviate', 'from', 'the', 'mean', 'in', 'order', 'to', 'test', 'the', 'technique', 'and', 'to', 'introduce', 'the', 'methodology', 'we', 'focus', 'on', 'the', 'el', 'ninosouthern', 'oscillation', 'and', 'its', 'spatial', 'patterns', 'we', 'find', 'nonsymmetric', 'temperature', 'patterns', 'corresponding', 'to', 'el', 'nino', 'and', 'la', 'nina', 'and', 'we', 'compare', 'the', 'results', 'of', 'mcf', 'with', 'other', 'techniques', 'such', 'as', 'the', 'symmetric', 'solutions', 'of', 'pca', 'and', 'the', 'nonsymmetric', 'solutions', 'of', 'nonlinear', 'pca', 'nlpca', 'we', 'found', 'that', 'mcf', 'solutions', 'are', 'more', 'reliable', 'than', 'the', 'nlpca', 'fits', 'and', 'can', 'capture', 'mixtures', 'of', 'principal', 'components', 'finally', 'we', 'apply', 'extreme', 'value', 'theory', 'on', 'the', 'temporal', 'variations', 'extracted', 'from', 'our', 'methodology', 'we', 'find', 'that', 'the', 'tails', 'of', 'the', 'distribution', 'of', 'extreme', 'temperatures', 'during', 'la', 'nina', 'episodes', 'is', 'bounded', 'while', 'the', 'tail', 'during', 'el', 'ninos', 'is', 'less', 'likely', 'to', 'be', 'bounded', 'this', 'implies', 'that', 'the', 'mean', 'spatial', 'patterns', 'of', 'the', 'two', 'phases', 'are', 'asymmetric', 'as', 'well', 'as', 'the', 'behaviour', 'of', 'their', 'extremes']] | [-0.06968873280584738, 0.12273217340239298, -0.10717908608953494, 0.09856048970301431, -0.04496532470911771, -0.10567903341688364, -0.006600337667461203, 0.36443308818773684, -0.27891821149723656, -0.29812029173942767, 0.13889925899559194, -0.30933445725456415, -0.1635525497965945, 0.1850101953841731, -0.047514817924183085, 0.01956603869487832, -0.01789329347360241, 0.0255449079206692, -0.07534788330093692, -0.19476858305974876, 0.30485392430429886, 0.049544788310786646, 0.2996276451406474, -0.000823606046350799, 0.08043734086269283, -0.008708220745151143, -0.06099687125886312, 0.05182101779739814, -0.09934561157033713, 0.0815592402837191, 0.24736307103528207, 0.11673030281482094, 0.231432018868358, -0.3944076703789408, -0.22124222870470875, 0.11275146977393424, 0.13017092894620597, 0.07821380699598843, 0.013615348137183712, -0.26275207899859643, 0.07518029847067309, -0.11052499602101669, -0.1370016419151575, -0.07992440686223516, 0.008413686192561075, 0.08578006628357186, -0.2771515899924079, 0.15188328816974722, 0.06936886468930059, 0.06161241808190081, -0.04656691513575272, -0.13132889066318207, -0.05806559384559314, 0.09194292646899552, 0.08571510692138644, -0.027169133820366932, 0.12200838658379844, -0.10895476328669138, -0.07152356253612223, 0.3386210881969502, -0.09745588427715873, -0.14318878452972586, 0.22048580480843366, -0.17144104864999543, -0.12129880624185076, 0.11243794510415588, 0.18905902837785296, 0.13971174649979579, -0.12358310668584538, 0.014546039161287189, -0.0030147300001634545, 0.18665110452454983, 0.07697647949866208, 0.03420170845345138, 0.19418195537866587, 0.13118158860282372, 0.07649402872215635, 0.1098926774041998, -0.14585729130911101, -0.09560984988656059, -0.24560899877980114, -0.08821714469472844, -0.1350246392361137, -0.024995168149230102, -0.1157202361151808, -0.17358897747360616, 0.3955605603212795, 0.14386420772348082, 0.22572096909787803, 0.043329828838071974, 0.2583250506434115, 0.13825334849362947, 0.06709957472976312, 0.06944477025037298, 0.2335489207263702, 0.11083865986739942, 0.10313354705486343, -0.22257143714366873, 0.09805554915145337, 0.008222831020190146] |
707.3548 | Parallel Tiled QR Factorization for Multicore Architectures | As multicore systems continue to gain ground in the High Performance
Computing world, linear algebra algorithms have to be reformulated or new
algorithms have to be developed in order to take advantage of the architectural
features on these new processors. Fine grain parallelism becomes a major
requirement and introduces the necessity of loose synchronization in the
parallel execution of an operation. This paper presents an algorithm for the QR
factorization where the operations can be represented as a sequence of small
tasks that operate on square blocks of data. These tasks can be dynamically
scheduled for execution based on the dependencies among them and on the
availability of computational resources. This may result in an out of order
execution of the tasks which will completely hide the presence of intrinsically
sequential tasks in the factorization. Performance comparisons are presented
with the LAPACK algorithm for QR factorization where parallelism can only be
exploited at the level of the BLAS operations.
| math.NA | as multicore systems continue to gain ground in the high performance computing world linear algebra algorithms have to be reformulated or new algorithms have to be developed in order to take advantage of the architectural features on these new processors fine grain parallelism becomes a major requirement and introduces the necessity of loose synchronization in the parallel execution of an operation this paper presents an algorithm for the qr factorization where the operations can be represented as a sequence of small tasks that operate on square blocks of data these tasks can be dynamically scheduled for execution based on the dependencies among them and on the availability of computational resources this may result in an out of order execution of the tasks which will completely hide the presence of intrinsically sequential tasks in the factorization performance comparisons are presented with the lapack algorithm for qr factorization where parallelism can only be exploited at the level of the blas operations | [['as', 'multicore', 'systems', 'continue', 'to', 'gain', 'ground', 'in', 'the', 'high', 'performance', 'computing', 'world', 'linear', 'algebra', 'algorithms', 'have', 'to', 'be', 'reformulated', 'or', 'new', 'algorithms', 'have', 'to', 'be', 'developed', 'in', 'order', 'to', 'take', 'advantage', 'of', 'the', 'architectural', 'features', 'on', 'these', 'new', 'processors', 'fine', 'grain', 'parallelism', 'becomes', 'a', 'major', 'requirement', 'and', 'introduces', 'the', 'necessity', 'of', 'loose', 'synchronization', 'in', 'the', 'parallel', 'execution', 'of', 'an', 'operation', 'this', 'paper', 'presents', 'an', 'algorithm', 'for', 'the', 'qr', 'factorization', 'where', 'the', 'operations', 'can', 'be', 'represented', 'as', 'a', 'sequence', 'of', 'small', 'tasks', 'that', 'operate', 'on', 'square', 'blocks', 'of', 'data', 'these', 'tasks', 'can', 'be', 'dynamically', 'scheduled', 'for', 'execution', 'based', 'on', 'the', 'dependencies', 'among', 'them', 'and', 'on', 'the', 'availability', 'of', 'computational', 'resources', 'this', 'may', 'result', 'in', 'an', 'out', 'of', 'order', 'execution', 'of', 'the', 'tasks', 'which', 'will', 'completely', 'hide', 'the', 'presence', 'of', 'intrinsically', 'sequential', 'tasks', 'in', 'the', 'factorization', 'performance', 'comparisons', 'are', 'presented', 'with', 'the', 'lapack', 'algorithm', 'for', 'qr', 'factorization', 'where', 'parallelism', 'can', 'only', 'be', 'exploited', 'at', 'the', 'level', 'of', 'the', 'blas', 'operations']] | [-0.1597425492257817, 0.04441253564995201, -0.09612048394193158, 0.014047791084579233, -0.0748595899884712, -0.13802335723068965, 0.027968417387455702, 0.4144928404510771, -0.3170290745900206, -0.359139806069668, 0.14310937368899654, -0.18185176944313278, -0.10273658450979903, 0.1969997133025841, -0.10214267135158463, 0.0746134343511665, 0.1041154932090134, 0.028537052788964984, -0.07211309016401053, -0.3190521302562699, 0.2744154888995976, 0.0832345785936282, 0.2570669072674318, 0.029096934172682137, 0.0649433495255726, -0.019295361748187797, -7.74806816388601e-05, 0.003494088461845176, -0.00810272110291682, 0.13994959625269068, 0.3160892408165448, 0.18372107567792795, 0.30167450755688147, -0.4696404555777334, -0.11839447952601942, 0.08854955995276734, 0.17367522811968136, 0.07032990973639015, 0.0084053429536252, -0.2601077773845491, 0.12281219288999648, -0.1684033352758665, -0.02673892074106437, -0.14413389008281366, -0.033944557565513345, 0.010814356755277832, -0.26463897332202047, -0.026843634176319874, 0.06030752871452052, 0.05284800705479446, 0.025169780347554845, -0.11795288407530799, 0.048776506537091244, 0.1542561356104184, -0.00796272336218342, -9.347877590389887e-05, 0.13718191559613924, -0.13262560107282498, -0.1915522358239681, 0.41907149376406233, 0.0030511971841326114, -0.19564134829001115, 0.18569611092888802, -0.049551703297216795, -0.19585701450851964, 0.10632896688358592, 0.24750188727564407, 0.0674826373644876, -0.13758545205196213, 0.07790555900662739, 0.017085703124977508, 0.19553189912705488, 0.053575364131123154, 0.06695445423723205, 0.1959248681365272, 0.20993311008227603, 0.0738024563578385, 0.13720313570705248, -0.0492414357655011, -0.08943741498280715, -0.24584105598839856, -0.18172142542781508, -0.1926916038980649, -0.01430748182835069, -0.10736781096949137, -0.15692111464369596, 0.3578464091409865, 0.1682070366190395, 0.1874063733332562, 0.07691457837063354, 0.3605317400077229, 0.09957141741530372, 0.17432985713693705, 0.14038129780169153, 0.16567186539137513, 0.048383338409095256, 0.12975606872295997, -0.20749878059375632, 0.07910641726218427, 0.03187719538058125] |
707.3549 | Superstring partition functions in the doubled formalism | Computation of superstring partition function for the non-linear sigma model
on the product of a two-torus and its dual within the scope of the doubled
formalism is presented. We verify that it reproduces the partition functions of
the toroidally compactified type--IIA and type--IIB theories for appropriate
choices of the GSO projection.
| hep-th | computation of superstring partition function for the nonlinear sigma model on the product of a twotorus and its dual within the scope of the doubled formalism is presented we verify that it reproduces the partition functions of the toroidally compactified typeiia and typeiib theories for appropriate choices of the gso projection | [['computation', 'of', 'superstring', 'partition', 'function', 'for', 'the', 'nonlinear', 'sigma', 'model', 'on', 'the', 'product', 'of', 'a', 'twotorus', 'and', 'its', 'dual', 'within', 'the', 'scope', 'of', 'the', 'doubled', 'formalism', 'is', 'presented', 'we', 'verify', 'that', 'it', 'reproduces', 'the', 'partition', 'functions', 'of', 'the', 'toroidally', 'compactified', 'typeiia', 'and', 'typeiib', 'theories', 'for', 'appropriate', 'choices', 'of', 'the', 'gso', 'projection']] | [-0.11123595669792563, 0.08561455778887167, -0.068662179067877, 0.1203161226014844, -0.025516630533863518, -0.10121127084701084, -0.005677133250762434, 0.29737136490624766, -0.16892713987651994, -0.2279957279873391, 0.11578295256613809, -0.2288585990009939, -0.16360919360144466, 0.1686449489583645, -0.04558376560167994, 0.04543257514631156, -0.02900162496257062, 0.057531899790845664, -0.15228815700438822, -0.2773803370438662, 0.3387881159307618, 0.01310329292626942, 0.3021760061246288, 0.03010376068927786, 0.1616120124144443, 0.06777378535080775, -0.03450455141308553, 0.01739969809868318, -0.11551026522490657, 0.1545961452282819, 0.17980463145410314, 0.17172233021690272, 0.1234394365958139, -0.4356326634319974, -0.2047409800556945, 0.032147109983306305, 0.15574037017045067, 0.06523831959530785, 0.06669421505648643, -0.23752264809959076, 0.0417771739885211, -0.18952956755517744, -0.20250012639763892, -0.06590159518607691, 0.03466994028684555, -0.033916647272074926, -0.24579410107039354, 0.007963824254807596, 0.0008953445974518271, -0.009886467445860891, -0.09163252417883817, -0.07990434937471268, -0.06807819846104465, 0.08158112637808218, 0.07621574686045814, 0.11918271646159244, 0.12112211506338973, -0.17976587470255645, -0.11173708209147055, 0.36511107264817055, -0.06158323659031999, -0.2921645921088901, 0.10269638693288845, -0.13145491020644412, -0.1721870468052871, 0.09557366170281288, 0.06224183743710027, 0.17869354415611893, -0.06858030025956824, 0.25497045820606323, -0.07228026371997069, 0.12472213015836828, 0.05962469599063636, 0.02678694584242561, 0.21861061351556405, 0.1536324689091713, 0.01902753925498794, 0.16600237054494665, -0.03548605339692942, -0.15348490632559156, -0.45269131003057256, -0.14779303147060643, -0.1391067051273935, 0.07348484491618971, -0.16709038878131346, -0.21503812728869712, 0.44441770579592854, 0.0840129512270876, 0.14424725061319038, 0.08862309344112873, 0.2095275742056615, 0.13900340098303324, 0.10484653863800215, -0.002092018948329211, 0.1923280911081854, 0.176500618261486, 0.019022026820583085, -0.263582377274539, -0.1043115742048066, 0.19597451177005673] |
707.355 | A Six Degree-Of-Freedom Haptic Device Based On The Orthoglide And A
Hybrid Agile Eye | This paper is devoted to the kinematic design of a new six degree-of-freedom
haptic device using two parallel mechanisms. The first one, called orthoglide,
provides the translation motions and the second one, called agile eye, produces
the rotational motions. These two motions are decoupled to simplify the direct
and inverse kinematics, as it is needed for real-time control. To reduce the
inertial load, the motors are fixed on the base and a transmission with two
universal joints is used to transmit the rotational motions from the base to
the end-effector. Two alternative wrists are proposed (i), the agile eye with
three degrees of freedom or (ii) a hybrid wrist made by the assembly of a
two-dof agile eye with a rotary motor. The last one is optimized to increase
its stiffness and to decrease the number of moving parts.
| cs.RO | this paper is devoted to the kinematic design of a new six degreeoffreedom haptic device using two parallel mechanisms the first one called orthoglide provides the translation motions and the second one called agile eye produces the rotational motions these two motions are decoupled to simplify the direct and inverse kinematics as it is needed for realtime control to reduce the inertial load the motors are fixed on the base and a transmission with two universal joints is used to transmit the rotational motions from the base to the endeffector two alternative wrists are proposed i the agile eye with three degrees of freedom or ii a hybrid wrist made by the assembly of a twodof agile eye with a rotary motor the last one is optimized to increase its stiffness and to decrease the number of moving parts | [['this', 'paper', 'is', 'devoted', 'to', 'the', 'kinematic', 'design', 'of', 'a', 'new', 'six', 'degreeoffreedom', 'haptic', 'device', 'using', 'two', 'parallel', 'mechanisms', 'the', 'first', 'one', 'called', 'orthoglide', 'provides', 'the', 'translation', 'motions', 'and', 'the', 'second', 'one', 'called', 'agile', 'eye', 'produces', 'the', 'rotational', 'motions', 'these', 'two', 'motions', 'are', 'decoupled', 'to', 'simplify', 'the', 'direct', 'and', 'inverse', 'kinematics', 'as', 'it', 'is', 'needed', 'for', 'realtime', 'control', 'to', 'reduce', 'the', 'inertial', 'load', 'the', 'motors', 'are', 'fixed', 'on', 'the', 'base', 'and', 'a', 'transmission', 'with', 'two', 'universal', 'joints', 'is', 'used', 'to', 'transmit', 'the', 'rotational', 'motions', 'from', 'the', 'base', 'to', 'the', 'endeffector', 'two', 'alternative', 'wrists', 'are', 'proposed', 'i', 'the', 'agile', 'eye', 'with', 'three', 'degrees', 'of', 'freedom', 'or', 'ii', 'a', 'hybrid', 'wrist', 'made', 'by', 'the', 'assembly', 'of', 'a', 'twodof', 'agile', 'eye', 'with', 'a', 'rotary', 'motor', 'the', 'last', 'one', 'is', 'optimized', 'to', 'increase', 'its', 'stiffness', 'and', 'to', 'decrease', 'the', 'number', 'of', 'moving', 'parts']] | [-0.1701249883161764, 0.1158814298695878, -0.06969994098859296, -0.043246938423010715, -0.14866378414444625, -0.16717637930628207, -0.0005924106684845048, 0.4114261981595656, -0.2692047050423759, -0.30890009825606995, 0.09018223680595185, -0.23248202001622362, -0.12803581024841706, 0.1970239028505472, -0.0851464423974105, 0.05293268376664868, 0.05175363242654666, 0.037197219073879635, -0.0022915748761223108, -0.18156425202794696, 0.2549040531186829, 0.04508044921772943, 0.26458799036507824, -0.05569640185898371, 0.1790733278172908, -0.012013202841333347, -0.0458172680692841, -0.003117994726937023, -0.07256982908014664, 0.19312525216637433, 0.2200581609194415, 0.09546457938581919, 0.25685196134710697, -0.4129966303853573, -0.16055479308710896, 0.03744708243824488, 0.1385219909867151, 0.07781853681939432, -0.003168287487673781, -0.27694024226675146, 0.06972633347019097, -0.17193261620407696, -0.12742969061402107, -0.02948533059198329, 0.013389174290430203, 0.051072981865178765, -0.22529963278647164, 0.004153817597267439, 0.0424252572543115, 0.0980763570372042, -0.08012478548795547, -0.08703227499298913, -0.016553195846675754, 0.20794319406841888, 0.06487156043713577, 0.022159495446227973, 0.1927097236818011, -0.10451555473515563, -0.13938499710061902, 0.4054962602852703, 0.030440310552287443, -0.24752465868033738, 0.23781591124511023, -0.07098736822657059, -0.11254754534373126, 0.1712087706642614, 0.15414879252805824, 0.0789473903727242, -0.18015290979084914, -0.037950576653221636, 0.038577178653946026, 0.15054098204475083, 0.06685984031659076, -0.04513723137888977, 0.1895952664496605, 0.17946702063673262, 0.09035077858582247, 0.13899057496861694, -0.17092060459033995, -0.09141154364153421, -0.2967141854958676, -0.19188059033849444, -0.12780604846842533, -0.014782754439699779, -0.04795186770531322, -0.10434821667149663, 0.40803255475789524, 0.12278897931689159, 0.18559320376710228, 0.05837361914568025, 0.3831750769436145, 0.04557258896311919, 0.0975053210762872, 0.06473516306350771, 0.27727291260330045, 0.07853021092960785, 0.12623308349414158, -0.257105725951595, 0.03358397573373354, 0.054803481544937485] |
707.3551 | Hodge metrics and the curvature of higher direct images | Using the harmonic theory developed by Takegoshi for representation of
relative cohomology and the framework of computation of curvature of direct
images bundles by Berndtsson, we prove that the higher direct images by a
smooth morphism of the relative canonical bundle twisted by a semi-positive
vector bundle are locally free and semi-positively curved, when endowed with a
suitable Hodge type metric.
| math.AG math.CV | using the harmonic theory developed by takegoshi for representation of relative cohomology and the framework of computation of curvature of direct images bundles by berndtsson we prove that the higher direct images by a smooth morphism of the relative canonical bundle twisted by a semipositive vector bundle are locally free and semipositively curved when endowed with a suitable hodge type metric | [['using', 'the', 'harmonic', 'theory', 'developed', 'by', 'takegoshi', 'for', 'representation', 'of', 'relative', 'cohomology', 'and', 'the', 'framework', 'of', 'computation', 'of', 'curvature', 'of', 'direct', 'images', 'bundles', 'by', 'berndtsson', 'we', 'prove', 'that', 'the', 'higher', 'direct', 'images', 'by', 'a', 'smooth', 'morphism', 'of', 'the', 'relative', 'canonical', 'bundle', 'twisted', 'by', 'a', 'semipositive', 'vector', 'bundle', 'are', 'locally', 'free', 'and', 'semipositively', 'curved', 'when', 'endowed', 'with', 'a', 'suitable', 'hodge', 'type', 'metric']] | [-0.1585109782496803, 0.08067627705263401, -0.06507151750236993, 0.06101509788241543, -0.10298093371703977, -0.15594652198163456, -0.0398025027663279, 0.39377449443716495, -0.31245297764534835, -0.20897457773843017, 0.0804384121381235, -0.17111262361534307, -0.18034020399094605, 0.17135491918344967, -0.15444811722826685, 0.008169649733749569, 0.08827000674715296, 0.11244765940870417, -0.11303440598603033, -0.20285615076494143, 0.5151196853868419, 0.02232391299435594, 0.2847441802503633, 0.048644092285120094, 0.16189659722378386, 0.028990801103168824, -0.03611590833113086, 0.033294534482458824, -0.09865716760503376, 0.22871078728301236, 0.239142100506111, 0.05585099209756514, 0.21410983513857498, -0.4016115246493308, -0.19871511746991855, 0.14871178413206926, 0.034047925577605845, -0.049423338066725456, -0.02063155683047581, -0.32737244299200713, 0.12941441337313678, -0.14629825247360057, -0.1317139840913845, -0.13402258358956848, 0.03087134045915159, 0.018973075906883498, -0.20961964330406951, 0.024478678973238976, 0.048578118725315304, 0.11540854824554236, -0.10832965008334303, -0.03495909223241395, -0.13982756374800792, 0.010465442155751202, -0.009387098878744195, 0.10130650327602005, 0.12846328555529968, -0.11296431245434968, -0.1307194876698319, 0.3720481650690075, -0.17646797151747542, -0.2719133848354953, 0.05495225974037999, -0.11304699593666391, -0.07953087377102404, 0.17112652380324778, 0.05497845463821145, 0.23167462740856848, 0.008766706562247968, 0.1476466039512459, -0.06957169113390636, 0.048733859384035474, 0.07083084905275801, -0.05978811006290746, 0.17120697947035804, 0.06255162894710532, 0.07134502611626856, 0.1012019545572703, -0.03634298653876195, -0.07886913140899822, -0.3538330178402486, -0.2768038756015604, -0.11751038257078436, 0.15353714334244123, -0.1342999107900007, -0.15491397645645089, 0.37718776011931116, -0.014718448361534565, 0.22667735436412154, 0.13902728106887613, 0.2915309887440478, 0.04907060924489967, 0.06871493311682869, -0.0005432276024681622, 0.18480115351801524, 0.27115292939525404, -0.0036557681828004417, -0.09342149123320448, -0.08718780255265778, 0.21582896923493655] |
707.3552 | Analyse Comparative des Manipulateurs 3R \`a Axes Orthogonaux | A family of 3R orthogonal manipulators without offset on the third body can
be divided into exactly nine workspace topologies. The workspace is
characterized in a half-cross section by the singular curves. The workspace
topology is defined by the number of cusps and nodes that appear on these
singular curves. Based on this classification, we evaluate theses manipulators
by the condition number related to the joint space and the proportion of the
region with four inverse kinematic solutions compared to a sphere containing
all the workspace. This second performance number is in relation with the
workspace. We determine finally le topology of workspace to which belong
manipulators having the best performance number values.
| cs.RO | a family of 3r orthogonal manipulators without offset on the third body can be divided into exactly nine workspace topologies the workspace is characterized in a halfcross section by the singular curves the workspace topology is defined by the number of cusps and nodes that appear on these singular curves based on this classification we evaluate theses manipulators by the condition number related to the joint space and the proportion of the region with four inverse kinematic solutions compared to a sphere containing all the workspace this second performance number is in relation with the workspace we determine finally le topology of workspace to which belong manipulators having the best performance number values | [['a', 'family', 'of', '3r', 'orthogonal', 'manipulators', 'without', 'offset', 'on', 'the', 'third', 'body', 'can', 'be', 'divided', 'into', 'exactly', 'nine', 'workspace', 'topologies', 'the', 'workspace', 'is', 'characterized', 'in', 'a', 'halfcross', 'section', 'by', 'the', 'singular', 'curves', 'the', 'workspace', 'topology', 'is', 'defined', 'by', 'the', 'number', 'of', 'cusps', 'and', 'nodes', 'that', 'appear', 'on', 'these', 'singular', 'curves', 'based', 'on', 'this', 'classification', 'we', 'evaluate', 'theses', 'manipulators', 'by', 'the', 'condition', 'number', 'related', 'to', 'the', 'joint', 'space', 'and', 'the', 'proportion', 'of', 'the', 'region', 'with', 'four', 'inverse', 'kinematic', 'solutions', 'compared', 'to', 'a', 'sphere', 'containing', 'all', 'the', 'workspace', 'this', 'second', 'performance', 'number', 'is', 'in', 'relation', 'with', 'the', 'workspace', 'we', 'determine', 'finally', 'le', 'topology', 'of', 'workspace', 'to', 'which', 'belong', 'manipulators', 'having', 'the', 'best', 'performance', 'number', 'values']] | [-0.2027856540511799, 0.04138637552515859, -0.03912984153082743, -0.027284615297092998, -0.11194589046505898, -0.10720103746692164, 0.0268162227054415, 0.36042573270017064, -0.23000114814963488, -0.3500280511788035, 0.10514214579469269, -0.27191138738947634, -0.12342351657725804, 0.17897032374779867, -0.09826354873268783, 0.060127777009465797, 0.041326572385047916, 0.08337968957107679, -0.04104475155513965, -0.29506606006360225, 0.36242894161146433, -0.060210703023239574, 0.25175974226301223, -0.041110323873900734, 0.07995299247414929, 0.03198806607098508, 0.011232489503124745, 0.06391935862690433, -0.13312329849944526, 0.1205482185896552, 0.23112123668094917, 0.11451940607708112, 0.18959717189612907, -0.3544625990356492, -0.12243633565649523, 0.15314424459501047, 0.16456020522277506, -0.018587785017825004, 0.05134167016248952, -0.27317983831023485, 0.1126565164968833, -0.12873236147431344, -0.13716411329723432, -0.037265078494308795, 0.004528763160043586, 0.04325913905734773, -0.18760571401335496, -0.012356428441847056, 0.021791480545498496, 0.0807585166272732, -0.0635907861303159, -0.10654398140217285, -0.04309773987851444, 0.13815787846255487, 0.034148374656874654, -0.0063987602191293135, 0.10090721874555524, -0.1084545710410864, -0.10540676709528254, 0.3711232425273083, 0.060462646513447925, -0.28878209255924203, 0.1674343764336895, -0.15413622709353808, -0.10088864894402502, 0.1605140082805986, 0.19363779967354067, 0.11623315855992579, -0.12256673889943456, 0.09951838903619488, -0.0540802606496861, 0.14979594432392396, 0.12466702566572786, -0.02555947698471425, 0.15993837858302998, 0.13903076675992493, 0.10282926654094929, 0.15192492499605514, -0.09955710346555025, -0.09937031190034694, -0.3281198377696286, -0.1681462890897111, -0.19307853401931152, -0.016760170257823392, -0.12452426531936239, -0.16475454862930078, 0.4194946347785273, 0.056842872231247815, 0.2670375042949366, 0.07840755035527941, 0.29843604411369407, 0.029098898726639098, 0.08053138713657329, 0.12079777163906699, 0.23112832097631808, 0.06028228149331068, 0.029900813199151142, -0.19060931814060778, 0.08345934403679062, 0.10580288721825433] |
707.3553 | An Exhaustive Study of the Workspace Topologies of all 3R Orthogonal
Manipulators with Geometric Simplifications | This paper analyses the workspace of the three-revolute orthogonal
manipulators that have at least one of their DH parameters equal to zero. These
manipulators are classified into different groups with similar kinematic
properties. The classification criteria are based on the topology of the
workspace. Each group is evaluated according to interesting kinematic
properties such as the size of the workspace subregion reachable with four
inverse kinematic solutions, the existence and the size of voids, and the size
of the regions of feasible paths in the workspace.
| cs.RO | this paper analyses the workspace of the threerevolute orthogonal manipulators that have at least one of their dh parameters equal to zero these manipulators are classified into different groups with similar kinematic properties the classification criteria are based on the topology of the workspace each group is evaluated according to interesting kinematic properties such as the size of the workspace subregion reachable with four inverse kinematic solutions the existence and the size of voids and the size of the regions of feasible paths in the workspace | [['this', 'paper', 'analyses', 'the', 'workspace', 'of', 'the', 'threerevolute', 'orthogonal', 'manipulators', 'that', 'have', 'at', 'least', 'one', 'of', 'their', 'dh', 'parameters', 'equal', 'to', 'zero', 'these', 'manipulators', 'are', 'classified', 'into', 'different', 'groups', 'with', 'similar', 'kinematic', 'properties', 'the', 'classification', 'criteria', 'are', 'based', 'on', 'the', 'topology', 'of', 'the', 'workspace', 'each', 'group', 'is', 'evaluated', 'according', 'to', 'interesting', 'kinematic', 'properties', 'such', 'as', 'the', 'size', 'of', 'the', 'workspace', 'subregion', 'reachable', 'with', 'four', 'inverse', 'kinematic', 'solutions', 'the', 'existence', 'and', 'the', 'size', 'of', 'voids', 'and', 'the', 'size', 'of', 'the', 'regions', 'of', 'feasible', 'paths', 'in', 'the', 'workspace']] | [-0.14875169366944668, 0.05397610581306697, -0.09331090815993416, -0.015119425605895907, -0.08485612798980328, -0.0881864748526971, 0.017917122898980717, 0.3668967320172246, -0.24858736136365076, -0.32270796597003937, 0.13186133222324167, -0.24763897186968215, -0.0577042612117217, 0.13048212885380137, -0.03294001554875353, 0.08472884190810281, 0.03211506970529986, 0.06123593032121832, -0.0667231272402501, -0.27560056473106836, 0.3384324996475825, -0.02328661961351023, 0.26459557490509955, -0.05965371279392478, 0.09308645485488828, -0.01676335056897166, -0.037920642378848304, 0.08186185335783426, -0.1679191043967453, 0.10954304090376164, 0.237440456896154, 0.13571995096876785, 0.20069107089494898, -0.36888277966009325, -0.11811153227896538, 0.1226718992882863, 0.18207484454479675, 0.0034511766049924284, 0.05464064842496111, -0.28400365718867804, 0.13006133046326077, -0.09090960631147027, -0.14786574187103746, -0.003973239144786846, 0.039450170656362936, 0.06102475143839107, -0.18388960662102977, 0.018698867475397365, 0.020061055117091813, 0.07830216943524605, -0.07900845034177913, -0.15127375134440182, -0.06864996487274766, 0.2029005113107878, 0.05347016883396739, -0.05615446580638892, 0.14770890566585368, -0.14451581042335737, -0.13000195691643587, 0.40493082007133335, 0.09502504228852517, -0.2416102378791588, 0.2583623363251993, -0.15021991510983818, -0.12865324761328656, 0.137333836509348, 0.18907986762716847, 0.12241557548039181, -0.15604586821309355, 0.08224051129912179, -0.08292008007248473, 0.12285438374897768, 0.08588665443320953, 0.06461175061697357, 0.173047766663394, 0.1722107750883456, 0.09827164054014395, 0.13958720382584563, -0.08744903232328334, -0.06873288208098952, -0.33336110755281395, -0.1529488431582184, -0.14201697175455993, -0.0451356909497706, -0.16304072501580502, -0.1747160589804353, 0.4205909070320601, 0.1086422881785967, 0.24641638525306833, 0.04992580759274059, 0.30168204384227826, 0.0376846881591455, 0.10732311828207965, 0.08896680697690436, 0.24263624454913443, 0.08987324134728243, 0.014449422664637135, -0.23372524420914867, 0.0859124199324829, 0.07190688774206264] |
707.3554 | Dynamics of wave packets in two-dimensional crystals under external
magnetic and electric fields: Vortices formation | In the present work we deal with the dynamics of wave packets in a
two-dimensional crystal under the action of magnetic and electric fields. The
magnetic field is perpendicular to the plane and the electric field is on the
plane. In the simulations we considered a symmetric gauge for the vector
potential while the initial wave packet was assumed to have a gaussian
structure with given velocities. The parameters that control the kind of time
evolution of the packets are: the width of the gaussian, its velocity, and, the
intensity and direction of the electric field as well as the magnitude of the
magnetic field. In order to characterize the kind of propagation we evaluated
the mean-square displacement (MSD), the participation function and which is
more important we were able to follow the wave at different times, which
allowed us to see the time evolution of the centroid of the wave packets. A
novel effect was observed, namely, the dynamics is such that the wave function
\emph{splits} into two or more components and \emph{reconstructs} successively
as time goes, vortices are forming. To our understanding this is the first time
such an effect is reported. As for the inclusion of the electric field, we
observe a complex behavior of the wave packet as well as note that the vortices
propagate in direction perpendicular to the applied electric field. A similar
behavior presented by the classical treatment, In our case we give a quantum
mechanics explanation for that
| cond-mat.mes-hall | in the present work we deal with the dynamics of wave packets in a twodimensional crystal under the action of magnetic and electric fields the magnetic field is perpendicular to the plane and the electric field is on the plane in the simulations we considered a symmetric gauge for the vector potential while the initial wave packet was assumed to have a gaussian structure with given velocities the parameters that control the kind of time evolution of the packets are the width of the gaussian its velocity and the intensity and direction of the electric field as well as the magnitude of the magnetic field in order to characterize the kind of propagation we evaluated the meansquare displacement msd the participation function and which is more important we were able to follow the wave at different times which allowed us to see the time evolution of the centroid of the wave packets a novel effect was observed namely the dynamics is such that the wave function emphsplits into two or more components and emphreconstructs successively as time goes vortices are forming to our understanding this is the first time such an effect is reported as for the inclusion of the electric field we observe a complex behavior of the wave packet as well as note that the vortices propagate in direction perpendicular to the applied electric field a similar behavior presented by the classical treatment in our case we give a quantum mechanics explanation for that | [['in', 'the', 'present', 'work', 'we', 'deal', 'with', 'the', 'dynamics', 'of', 'wave', 'packets', 'in', 'a', 'twodimensional', 'crystal', 'under', 'the', 'action', 'of', 'magnetic', 'and', 'electric', 'fields', 'the', 'magnetic', 'field', 'is', 'perpendicular', 'to', 'the', 'plane', 'and', 'the', 'electric', 'field', 'is', 'on', 'the', 'plane', 'in', 'the', 'simulations', 'we', 'considered', 'a', 'symmetric', 'gauge', 'for', 'the', 'vector', 'potential', 'while', 'the', 'initial', 'wave', 'packet', 'was', 'assumed', 'to', 'have', 'a', 'gaussian', 'structure', 'with', 'given', 'velocities', 'the', 'parameters', 'that', 'control', 'the', 'kind', 'of', 'time', 'evolution', 'of', 'the', 'packets', 'are', 'the', 'width', 'of', 'the', 'gaussian', 'its', 'velocity', 'and', 'the', 'intensity', 'and', 'direction', 'of', 'the', 'electric', 'field', 'as', 'well', 'as', 'the', 'magnitude', 'of', 'the', 'magnetic', 'field', 'in', 'order', 'to', 'characterize', 'the', 'kind', 'of', 'propagation', 'we', 'evaluated', 'the', 'meansquare', 'displacement', 'msd', 'the', 'participation', 'function', 'and', 'which', 'is', 'more', 'important', 'we', 'were', 'able', 'to', 'follow', 'the', 'wave', 'at', 'different', 'times', 'which', 'allowed', 'us', 'to', 'see', 'the', 'time', 'evolution', 'of', 'the', 'centroid', 'of', 'the', 'wave', 'packets', 'a', 'novel', 'effect', 'was', 'observed', 'namely', 'the', 'dynamics', 'is', 'such', 'that', 'the', 'wave', 'function', 'emphsplits', 'into', 'two', 'or', 'more', 'components', 'and', 'emphreconstructs', 'successively', 'as', 'time', 'goes', 'vortices', 'are', 'forming', 'to', 'our', 'understanding', 'this', 'is', 'the', 'first', 'time', 'such', 'an', 'effect', 'is', 'reported', 'as', 'for', 'the', 'inclusion', 'of', 'the', 'electric', 'field', 'we', 'observe', 'a', 'complex', 'behavior', 'of', 'the', 'wave', 'packet', 'as', 'well', 'as', 'note', 'that', 'the', 'vortices', 'propagate', 'in', 'direction', 'perpendicular', 'to', 'the', 'applied', 'electric', 'field', 'a', 'similar', 'behavior', 'presented', 'by', 'the', 'classical', 'treatment', 'in', 'our', 'case', 'we', 'give', 'a', 'quantum', 'mechanics', 'explanation', 'for', 'that']] | [-0.17096558534330306, 0.1488675094982175, -0.07279554072988877, 0.03736899200050145, -0.062226788209537504, -0.03772238341587611, -0.006648082386312976, 0.3846459110023179, -0.2649319362960237, -0.2786098031716452, 0.07374089504315395, -0.24572388677415055, -0.13978604504124825, 0.17558523331345136, 0.036253338897234345, 0.04340816882880763, -0.015595387578197588, 0.09386923885522563, -0.04014643444107143, -0.20761275902814155, 0.3125934653178804, 0.051797472535476057, 0.2833286451154816, 0.028866181185146503, 0.0890197901123921, 0.034322261756866194, 0.022326352841938374, 0.04642716191373155, -0.1009048876247882, 0.04573941724107708, 0.17911558677289696, 0.0668949873480549, 0.2511271604243284, -0.4554406378693024, -0.22869995725150297, 0.06811303203185012, 0.13905141353759853, 0.14585300412250407, -0.04262462625631654, -0.284865690165268, 0.052294317164389634, -0.10976880140503349, -0.17880926586613136, -0.021987330582618834, 0.029869183626018283, 0.07838472461525435, -0.26253903233069265, 0.07166703970679159, 0.052478001061273497, 0.02155810104850985, -0.08895670540953345, -0.08011624599772613, -0.02143696299944928, 0.121976355758217, 0.09704727774722594, 0.0994093585110529, 0.1191136844925674, -0.13860261859229125, -0.09500756122927624, 0.4071042736139164, -0.07298212778729722, -0.19926973173707785, 0.15784420960460652, -0.17606154095119564, -0.04926444038550262, 0.13572463159808187, 0.20124020260070702, 0.10576932688365828, -0.11273812855709321, 0.029329142033706464, -0.022013753518623443, 0.1401463523655023, 0.06374754789132686, 0.02461346036746915, 0.19419618220770823, 0.13095979480698827, 0.06738124117342881, 0.15048323125868548, -0.14824559340791654, -0.10443121806306184, -0.30479542630510864, -0.18945170078831192, -0.16847940302953948, 0.04880251963424866, -0.0410036370307293, -0.16964425423304688, 0.4584479692437854, 0.1715294273126943, 0.1911405816275367, 0.025946267071317454, 0.29847368062092144, 0.16876583355746125, 0.07376633027041728, 0.0639814230227904, 0.26266924703405925, 0.15869210618090068, 0.12902314633371492, -0.23220675616032735, 0.05749171427699172, 0.014866543739087513] |
707.3555 | Power Dependence of the Photocurrent Lineshape in a Semiconductor
Quantum Dot | We propose a kinetic theory to describe the power dependence, $I_{PC}(P)$, of
the photocurrent (PC) lineshape in optically pumped quantum dots at low
temperatures, in both zero and finite magnetic fields. We show that there is a
crossover power $P_c$, determined by the electron and hole tunneling rates, at
which the photocurrent spectra become strongly influenced by the dot kinetics,
and no longer reflect the exciton lifetime in the dot. For $P>P_c$, we show
that the photocurrent saturates due to the slow hole escape rate (in e.g.,
InGaAs/GaAs dots), whereas the line-width increases with power: $\Gamma \propto
\sqrt{P}$. We also analyze to what measure the spin-doublet lineshape of the
photocurrent studied in a high magnetic field reflects the degree of circular
polarization of the incident light.
| cond-mat.mes-hall | we propose a kinetic theory to describe the power dependence i_pcp of the photocurrent pc lineshape in optically pumped quantum dots at low temperatures in both zero and finite magnetic fields we show that there is a crossover power p_c determined by the electron and hole tunneling rates at which the photocurrent spectra become strongly influenced by the dot kinetics and no longer reflect the exciton lifetime in the dot for pp_c we show that the photocurrent saturates due to the slow hole escape rate in eg ingaasgaas dots whereas the linewidth increases with power gamma propto sqrtp we also analyze to what measure the spindoublet lineshape of the photocurrent studied in a high magnetic field reflects the degree of circular polarization of the incident light | [['we', 'propose', 'a', 'kinetic', 'theory', 'to', 'describe', 'the', 'power', 'dependence', 'i_pcp', 'of', 'the', 'photocurrent', 'pc', 'lineshape', 'in', 'optically', 'pumped', 'quantum', 'dots', 'at', 'low', 'temperatures', 'in', 'both', 'zero', 'and', 'finite', 'magnetic', 'fields', 'we', 'show', 'that', 'there', 'is', 'a', 'crossover', 'power', 'p_c', 'determined', 'by', 'the', 'electron', 'and', 'hole', 'tunneling', 'rates', 'at', 'which', 'the', 'photocurrent', 'spectra', 'become', 'strongly', 'influenced', 'by', 'the', 'dot', 'kinetics', 'and', 'no', 'longer', 'reflect', 'the', 'exciton', 'lifetime', 'in', 'the', 'dot', 'for', 'pp_c', 'we', 'show', 'that', 'the', 'photocurrent', 'saturates', 'due', 'to', 'the', 'slow', 'hole', 'escape', 'rate', 'in', 'eg', 'ingaasgaas', 'dots', 'whereas', 'the', 'linewidth', 'increases', 'with', 'power', 'gamma', 'propto', 'sqrtp', 'we', 'also', 'analyze', 'to', 'what', 'measure', 'the', 'spindoublet', 'lineshape', 'of', 'the', 'photocurrent', 'studied', 'in', 'a', 'high', 'magnetic', 'field', 'reflects', 'the', 'degree', 'of', 'circular', 'polarization', 'of', 'the', 'incident', 'light']] | [-0.1461068735420704, 0.2264094225205481, -0.040862132394453514, 0.046929792021401226, 0.040240463523659856, -0.178957039359957, 0.05588079618755728, 0.4152246274203062, -0.2696767393853515, -0.26749367094039916, -0.02796273033414036, -0.304890457443893, -0.06294071694463492, 0.21873722835909576, 0.009037035569548607, -0.01830575378239155, -0.04246931243129075, -0.001318533584009856, -0.021463661901652813, -0.15234460308030248, 0.2824609186500311, 0.06139989482332021, 0.3056307258754969, 0.11724604284018278, 0.07447652970254422, -0.0003070495799183846, 0.0774295065253973, 0.00919351940229535, -0.18134600644989404, 0.020868489447981118, 0.22037733040750027, -0.027057070039212705, 0.215592274017632, -0.407603593364358, -0.17238288169354202, 0.0660627260506153, 0.163919623943395, 0.11673042518366128, -0.07538182644546032, -0.21533023765869438, 0.06545347316469997, -0.12540658738010096, -0.10880883821751923, -0.013921391673386097, 0.0420390311377123, 0.022019132394343614, -0.25595391892828045, 0.13727387382625603, 0.036828987729735675, 0.05404411474429071, -0.029736663779010995, -0.06154427257156931, -0.06501528659788891, 0.04556311833485961, 0.05758358885161579, 0.04281357120350003, 0.2385667774565518, -0.13009229582734405, -0.0981491663902998, 0.3155334136709571, -0.123794069878757, -0.07381104108388535, 0.10499590988457203, -0.3200919624939561, -0.034792942309053616, 0.20188586246222257, 0.12097420827578753, 0.12827111566625535, -0.08883552233874797, 0.0897523464828264, 0.03568212793767452, 0.21387890833616258, 0.07766275650821626, 0.11849308742117137, 0.2457830188050866, 0.1342459688745439, 0.048027603775262835, 0.10185170110547916, -0.1365783703904599, -0.05245558748953044, -0.21137020539119838, -0.13009097920078785, -0.2097697551511228, 0.1474256072062999, -0.0762069770131493, -0.14213479252904654, 0.4209680489972234, 0.13199252735823394, 0.2184578554108739, 0.01961083637457341, 0.275695662163198, 0.2137482509203255, 0.03978150522429496, 0.08638028298690915, 0.2677540740519762, 0.1980774079505354, 0.11328577762097121, -0.35963409392908213, 0.01656602753326297, -0.06608854254521429] |
707.3556 | Coherence of an Entangled Exciton-Photon State | We study the effect of the exciton fine-structure splitting on the
polarisation-entanglement of photon pairs produced by the biexciton cascade in
a single quantum dot. The entanglement is found to persist despite separations
between the intermediate energy levels of up to 4 micro-eV. Measurements
demonstrate that entanglement of the photon pair is robust to the dephasing of
the intermediate exciton state responsible for the first order coherence time
of either single photon. We present a theoretical framework taking into account
the effects of spin-scattering, background light and dephasing. We distinguish
between the first-order coherence time, and a parameter which we measure for
the first time and define as the cross-coherence time.
| quant-ph | we study the effect of the exciton finestructure splitting on the polarisationentanglement of photon pairs produced by the biexciton cascade in a single quantum dot the entanglement is found to persist despite separations between the intermediate energy levels of up to 4 microev measurements demonstrate that entanglement of the photon pair is robust to the dephasing of the intermediate exciton state responsible for the first order coherence time of either single photon we present a theoretical framework taking into account the effects of spinscattering background light and dephasing we distinguish between the firstorder coherence time and a parameter which we measure for the first time and define as the crosscoherence time | [['we', 'study', 'the', 'effect', 'of', 'the', 'exciton', 'finestructure', 'splitting', 'on', 'the', 'polarisationentanglement', 'of', 'photon', 'pairs', 'produced', 'by', 'the', 'biexciton', 'cascade', 'in', 'a', 'single', 'quantum', 'dot', 'the', 'entanglement', 'is', 'found', 'to', 'persist', 'despite', 'separations', 'between', 'the', 'intermediate', 'energy', 'levels', 'of', 'up', 'to', '4', 'microev', 'measurements', 'demonstrate', 'that', 'entanglement', 'of', 'the', 'photon', 'pair', 'is', 'robust', 'to', 'the', 'dephasing', 'of', 'the', 'intermediate', 'exciton', 'state', 'responsible', 'for', 'the', 'first', 'order', 'coherence', 'time', 'of', 'either', 'single', 'photon', 'we', 'present', 'a', 'theoretical', 'framework', 'taking', 'into', 'account', 'the', 'effects', 'of', 'spinscattering', 'background', 'light', 'and', 'dephasing', 'we', 'distinguish', 'between', 'the', 'firstorder', 'coherence', 'time', 'and', 'a', 'parameter', 'which', 'we', 'measure', 'for', 'the', 'first', 'time', 'and', 'define', 'as', 'the', 'crosscoherence', 'time']] | [-0.14656726913103327, 0.2059103335846554, -0.07357219037261199, 0.09262734611984343, 0.051649147337725895, -0.12023347857492891, 0.07522070950151168, 0.38023045322095805, -0.2573986217125573, -0.3159110298803584, -0.00793400136013092, -0.2593110577880659, -0.02346804298629815, 0.1851307354253632, 0.06731570665301247, 0.034406097495759076, 0.0379194569773972, 0.002702101269228892, -0.047705259176225145, -0.17560520086712628, 0.33858339084650985, 0.04207579784243452, 0.27395620963176376, 0.12703994099389423, 0.1347955159842968, 0.00575770993124355, 0.01339840340766717, -0.02967797617682002, -0.10382243616073869, 0.0786099070344459, 0.21539346931332892, 0.037819040731780905, 0.25968037574467334, -0.39473878825083375, -0.17346491320693697, 0.11476293108849363, 0.12302827295762571, 0.17263315730749376, -0.024707855873698878, -0.31599164241078226, 0.033674250094389374, -0.14031652706590567, -0.03981391310861165, -0.05127267048228532, 0.023767676143060353, -0.03515365447383374, -0.2549217800440436, 0.12181129910221154, 0.06224007281866348, -0.022562993402508173, -0.04160239696079357, -0.022766182947882706, -0.022945594499734316, 0.14349300065924497, 0.03497219924941997, 0.004100564113733443, 0.13046236668332395, -0.10387811533768068, -0.15198356877081096, 0.36799563799392093, -0.12177795918171548, -0.1105351297989149, 0.13565780528905716, -0.18024427453055977, -0.062038027435879814, 0.14397740199823272, 0.15144897480495273, 0.13052069863135166, -0.10500930595973676, 0.020470423287902537, 0.04101191757839512, 0.232261552373794, 0.04681130702268671, 0.16067297487435014, 0.19759524061810224, 0.16529168813404713, 0.03173673856230876, 0.1785126127979972, -0.169443499667316, -0.1108648467216302, -0.31689472069794483, -0.20158606271037238, -0.18197084718637846, 0.09235843169629912, -0.06466137229594593, -0.10847871338271282, 0.4445988339541311, 0.13688525621863928, 0.2238179742612622, 0.04375078578331423, 0.2895294684641571, 0.16037961936090142, 0.053772823401430456, 0.013857286618175832, 0.2835358652667227, 0.13141600577033719, 0.06796141699887812, -0.32142694665923377, 0.03118868344463408, -0.004742686666378921] |
707.3557 | Phase separation and competition of superconductivity and magnetism in
the two-dimensional Hubbard model: From strong to weak coupling | Cooperation and competition between the antiferromagnetic, d-wave
superconducting and Mott-insulating states are explored for the two-dimensional
Hubbard model including nearest and next-nearest-neighbor hoppings at zero
temperature. Using the variational cluster approach with clusters of different
shapes and sizes up to 10 sites, it is found that the doping-driven transition
from a phase with microscopic coexistence of antiferromagnetism and
superconductivity to a purely superconducting phase is discontinuous for strong
interaction and accompanied by phase separation. At half-filling the system is
in an antiferromagnetic Mott-insulating state with vanishing charge
compressibility. Upon decreasing the interaction strength U below a certain
critical value of roughly U=4 (in units of the nearest-neighbor hopping),
however, the filling-dependent magnetic transition changes its character and
becomes continuous. Phase separation or, more carefully, the tendency towards
the formation of inhomogeneous states disappears. This critical value is in
contrast to previous studies, where a much larger value was obtained. Moreover,
we find that the system at half-filling undergoes the Mott transition from an
insulator to a state with a finite charge compressibility at essentially the
same value. The weakly correlated state at half-filling exhibits
superconductivity microscopically admixed to the antiferromagnetic order. This
scenario suggests a close relation between phase separation and the
Mott-insulator physics.
| cond-mat.str-el cond-mat.supr-con | cooperation and competition between the antiferromagnetic dwave superconducting and mottinsulating states are explored for the twodimensional hubbard model including nearest and nextnearestneighbor hoppings at zero temperature using the variational cluster approach with clusters of different shapes and sizes up to 10 sites it is found that the dopingdriven transition from a phase with microscopic coexistence of antiferromagnetism and superconductivity to a purely superconducting phase is discontinuous for strong interaction and accompanied by phase separation at halffilling the system is in an antiferromagnetic mottinsulating state with vanishing charge compressibility upon decreasing the interaction strength u below a certain critical value of roughly u4 in units of the nearestneighbor hopping however the fillingdependent magnetic transition changes its character and becomes continuous phase separation or more carefully the tendency towards the formation of inhomogeneous states disappears this critical value is in contrast to previous studies where a much larger value was obtained moreover we find that the system at halffilling undergoes the mott transition from an insulator to a state with a finite charge compressibility at essentially the same value the weakly correlated state at halffilling exhibits superconductivity microscopically admixed to the antiferromagnetic order this scenario suggests a close relation between phase separation and the mottinsulator physics | [['cooperation', 'and', 'competition', 'between', 'the', 'antiferromagnetic', 'dwave', 'superconducting', 'and', 'mottinsulating', 'states', 'are', 'explored', 'for', 'the', 'twodimensional', 'hubbard', 'model', 'including', 'nearest', 'and', 'nextnearestneighbor', 'hoppings', 'at', 'zero', 'temperature', 'using', 'the', 'variational', 'cluster', 'approach', 'with', 'clusters', 'of', 'different', 'shapes', 'and', 'sizes', 'up', 'to', '10', 'sites', 'it', 'is', 'found', 'that', 'the', 'dopingdriven', 'transition', 'from', 'a', 'phase', 'with', 'microscopic', 'coexistence', 'of', 'antiferromagnetism', 'and', 'superconductivity', 'to', 'a', 'purely', 'superconducting', 'phase', 'is', 'discontinuous', 'for', 'strong', 'interaction', 'and', 'accompanied', 'by', 'phase', 'separation', 'at', 'halffilling', 'the', 'system', 'is', 'in', 'an', 'antiferromagnetic', 'mottinsulating', 'state', 'with', 'vanishing', 'charge', 'compressibility', 'upon', 'decreasing', 'the', 'interaction', 'strength', 'u', 'below', 'a', 'certain', 'critical', 'value', 'of', 'roughly', 'u4', 'in', 'units', 'of', 'the', 'nearestneighbor', 'hopping', 'however', 'the', 'fillingdependent', 'magnetic', 'transition', 'changes', 'its', 'character', 'and', 'becomes', 'continuous', 'phase', 'separation', 'or', 'more', 'carefully', 'the', 'tendency', 'towards', 'the', 'formation', 'of', 'inhomogeneous', 'states', 'disappears', 'this', 'critical', 'value', 'is', 'in', 'contrast', 'to', 'previous', 'studies', 'where', 'a', 'much', 'larger', 'value', 'was', 'obtained', 'moreover', 'we', 'find', 'that', 'the', 'system', 'at', 'halffilling', 'undergoes', 'the', 'mott', 'transition', 'from', 'an', 'insulator', 'to', 'a', 'state', 'with', 'a', 'finite', 'charge', 'compressibility', 'at', 'essentially', 'the', 'same', 'value', 'the', 'weakly', 'correlated', 'state', 'at', 'halffilling', 'exhibits', 'superconductivity', 'microscopically', 'admixed', 'to', 'the', 'antiferromagnetic', 'order', 'this', 'scenario', 'suggests', 'a', 'close', 'relation', 'between', 'phase', 'separation', 'and', 'the', 'mottinsulator', 'physics']] | [-0.18427795704680167, 0.25624953031179826, -0.02781691319678965, 0.03805120730962075, -0.011907213966718273, -0.17828105210655315, 0.12688707933058122, 0.35635006315001816, -0.2723852863338977, -0.25745849584357117, 0.015126168922470956, -0.3658384129441544, -0.08872790035207336, 0.08055005411106143, 0.10356524961063912, -0.031551087643510625, -0.04712410716228096, 0.022935434598384388, -0.17176595390270344, -0.1986994029647059, 0.32997107685214894, -0.0075312129486644385, 0.30778769264111805, 0.09097370430005386, 0.016145018621019143, -0.019920870980968175, 0.18664371684723186, 0.01964854301117799, -0.14672002011909224, -0.016843042698240548, 0.25376776593575234, -0.09814830027593702, 0.23402234938625685, -0.37378157308672133, -0.1921357080566083, 0.052939172992802354, 0.13570639525263972, 0.16506669090549445, -0.03644623069026149, -0.3336695229643773, 0.016522527625556012, -0.1853391689467518, -0.12913052598100072, -0.059959790049070566, 0.022455190705573735, -0.033828146484630256, -0.2878890974885401, 0.1577566434519694, 0.052102323849206135, 0.0875344758638747, -0.08957403989259939, -0.11250214507533968, -0.08607210038862118, 0.08793071284776043, 0.029146436061459027, 0.12332074586804226, 0.10368717929540093, -0.149293401175836, -0.060084697436632625, 0.35642302989064917, -0.02510764260888191, -0.06078666717261441, 0.2354821435623236, -0.1816138915932171, -0.0703959936600215, 0.19164234978105762, 0.073222909372656, 0.030528588857337394, -0.08548299141009064, 0.04567245417959331, 0.03900335075712635, 0.22678928873410412, -0.016682550243179623, 0.029462817860036798, 0.25654897262689236, 0.21993783858031782, 0.10029762518117387, 0.1722492020869372, -0.1037730712970883, -0.16049094519614443, -0.23075753943446806, -0.10747956611471725, -0.24908846994752393, 0.0034475502005650426, -0.09638835538313359, -0.18665196216327376, 0.36818671450429763, 0.16722386241114387, 0.2114119777483318, -0.02090171172612292, 0.20070550832030015, 0.12003490604989815, 0.03926390560067661, 0.0407542000871663, 0.2621849644061762, 0.14485265829203212, 0.1454519225454515, -0.2914482459982894, 0.07981177638330515, 0.06260692094128542] |
707.3558 | Brane-World Black Hole Solutions via a Confining Potential | Using a confining potential, we consider spherically symmetric vacuum (static
black hole) solutions in a brane-world scenario. Working with a constant
curvature bulk, two interesting cases/solutions are studied. A Schwarzschild-de
Sitter black hole solution similar to the standard solution in the presence of
a cosmological constant is obtained which confirms the idea that an extra term
in the field equations on the brane can play the role of a positive
cosmological constant and may be used to account for the accelerated expansion
of the universe. The other solution is one in which we can have a proper
potential to explain the galaxy rotation curves without assuming the existence
of dark matter and without working with new modified theories (modified
Newtonian dynamics).
| gr-qc hep-th | using a confining potential we consider spherically symmetric vacuum static black hole solutions in a braneworld scenario working with a constant curvature bulk two interesting casessolutions are studied a schwarzschildde sitter black hole solution similar to the standard solution in the presence of a cosmological constant is obtained which confirms the idea that an extra term in the field equations on the brane can play the role of a positive cosmological constant and may be used to account for the accelerated expansion of the universe the other solution is one in which we can have a proper potential to explain the galaxy rotation curves without assuming the existence of dark matter and without working with new modified theories modified newtonian dynamics | [['using', 'a', 'confining', 'potential', 'we', 'consider', 'spherically', 'symmetric', 'vacuum', 'static', 'black', 'hole', 'solutions', 'in', 'a', 'braneworld', 'scenario', 'working', 'with', 'a', 'constant', 'curvature', 'bulk', 'two', 'interesting', 'casessolutions', 'are', 'studied', 'a', 'schwarzschildde', 'sitter', 'black', 'hole', 'solution', 'similar', 'to', 'the', 'standard', 'solution', 'in', 'the', 'presence', 'of', 'a', 'cosmological', 'constant', 'is', 'obtained', 'which', 'confirms', 'the', 'idea', 'that', 'an', 'extra', 'term', 'in', 'the', 'field', 'equations', 'on', 'the', 'brane', 'can', 'play', 'the', 'role', 'of', 'a', 'positive', 'cosmological', 'constant', 'and', 'may', 'be', 'used', 'to', 'account', 'for', 'the', 'accelerated', 'expansion', 'of', 'the', 'universe', 'the', 'other', 'solution', 'is', 'one', 'in', 'which', 'we', 'can', 'have', 'a', 'proper', 'potential', 'to', 'explain', 'the', 'galaxy', 'rotation', 'curves', 'without', 'assuming', 'the', 'existence', 'of', 'dark', 'matter', 'and', 'without', 'working', 'with', 'new', 'modified', 'theories', 'modified', 'newtonian', 'dynamics']] | [-0.16589809437282382, 0.08403754351614529, -0.12410889649375652, 0.10733864436430546, -0.12584023535406838, -0.16395961068337783, -0.0426103979581967, 0.3052398920447255, -0.19528805845572303, -0.29109293676447123, 0.08819774024207921, -0.24955647358438, -0.08164086666850684, 0.15886992460582405, -0.02883314061909914, 0.013135807479072052, -0.020236803585430608, 0.04337508582684677, -0.05932170909169751, -0.24884800574703453, 0.3759511997612814, 0.06540303629202147, 0.2063979678709681, 0.005009461351437494, 0.10884499324408049, -0.054391297643693784, 0.01307124161782364, 0.0930493550763155, -0.16096847772745, 0.05356707013367365, 0.1525109487954372, 0.09075842918440079, 0.23626678600170029, -0.4353323596219222, -0.2868226780323312, 0.12904257256692897, 0.15330353430472315, 0.18626631722824338, -0.14996826490872384, -0.2694001475504289, 0.07825533655510905, -0.19346794638161857, -0.20056573832407593, -0.030786658217402875, -0.01636499422893394, -0.041968474744741496, -0.23895565872080624, 0.10982017499045468, 0.021334067195251313, -0.0823338049929589, -0.1593217791756615, -0.04723007483795906, 0.0051795918106411895, 0.07913528239975373, 0.12814988203366132, 0.04919152512544921, 0.1366709768481087, -0.14774848715896952, -0.0899161503611443, 0.4223373777853946, -0.18602510155954707, -0.228403729320659, 0.1388568282748262, -0.16342633701084802, -0.08881901626785596, 0.08295733033834646, 0.12899214862457786, 0.15506021062998723, -0.15072589456491794, 0.17522904702054803, -0.0016154009887638192, 0.16309446187127227, 0.11252915008226409, 0.004040595293554361, 0.335557817046841, 0.0911168997719263, 0.027210349141387268, 0.12387407064331152, -0.028178618112967038, -0.1418338092470852, -0.34482163946765165, -0.16016537214939794, -0.1386925237524944, 0.09467386089017964, -0.2012658794602127, -0.19271485765930266, 0.3413207608430336, 0.06443273535793802, 0.16152578140608967, -0.014677762654901016, 0.2388782974992258, 0.07549974831442038, 0.042845049797324467, 0.0872687038499862, 0.3347824336029589, 0.0977101362873024, 0.1250435889970201, -0.24662785187053185, -0.018476616038242355, 0.08733985072855527] |
707.3559 | Practical Approach to Knowledge-based Question Answering with Natural
Language Understanding and Advanced Reasoning | This research hypothesized that a practical approach in the form of a
solution framework known as Natural Language Understanding and Reasoning for
Intelligence (NaLURI), which combines full-discourse natural language
understanding, powerful representation formalism capable of exploiting
ontological information and reasoning approach with advanced features, will
solve the following problems without compromising practicality factors: 1)
restriction on the nature of question and response, and 2) limitation to scale
across domains and to real-life natural language text.
| cs.CL cs.AI cs.HC cs.IR | this research hypothesized that a practical approach in the form of a solution framework known as natural language understanding and reasoning for intelligence naluri which combines fulldiscourse natural language understanding powerful representation formalism capable of exploiting ontological information and reasoning approach with advanced features will solve the following problems without compromising practicality factors 1 restriction on the nature of question and response and 2 limitation to scale across domains and to reallife natural language text | [['this', 'research', 'hypothesized', 'that', 'a', 'practical', 'approach', 'in', 'the', 'form', 'of', 'a', 'solution', 'framework', 'known', 'as', 'natural', 'language', 'understanding', 'and', 'reasoning', 'for', 'intelligence', 'naluri', 'which', 'combines', 'fulldiscourse', 'natural', 'language', 'understanding', 'powerful', 'representation', 'formalism', 'capable', 'of', 'exploiting', 'ontological', 'information', 'and', 'reasoning', 'approach', 'with', 'advanced', 'features', 'will', 'solve', 'the', 'following', 'problems', 'without', 'compromising', 'practicality', 'factors', '1', 'restriction', 'on', 'the', 'nature', 'of', 'question', 'and', 'response', 'and', '2', 'limitation', 'to', 'scale', 'across', 'domains', 'and', 'to', 'reallife', 'natural', 'language', 'text']] | [-0.02186783669797117, -0.013152915582520096, -0.06176897434339131, 0.12392280935086565, -0.20385908443251088, -0.1517165517912897, 0.035560509470635895, 0.33833887152475856, -0.3104149541779332, -0.40216246772914716, 0.057124815324691366, -0.21923612550455976, -0.2206461128255684, 0.2100480538984276, -0.10435577022702727, 0.0833572970881854, 0.08884784612766378, 0.02846804881238774, -0.029420176020198283, -0.17290013587446756, 0.33898145568952576, 0.0002825134625173595, 0.35137487163333453, 0.10182986234008551, 0.15430873492732644, 0.009304595887916137, -0.03060662474687377, -0.024470357760174633, -0.05758059331846235, 0.21526472196493246, 0.3587789764398173, 0.2944711128517679, 0.36562040926607914, -0.4528433915278683, -0.25221581643523827, 0.03202264648957867, 0.14367269698294416, 0.07850344579073613, -0.022285789004144296, -0.3325227287546923, 0.09212853431650629, -0.1294318732665214, -0.077720630250565, -0.15160973121297278, 0.053996340033585485, -0.0742426215581698, -0.2475928975833733, -0.02433116176510102, 0.18867698170831554, 0.10581882157656428, -0.0438260800294476, -0.07122969658637088, 0.10961642400808122, 0.1270493467925244, 0.030319408365295664, 0.043314010043602996, 0.15966305806786332, -0.18062343221629829, -0.19120094132903095, 0.43475191126743407, -0.023828478705469672, -0.21997537389907934, 0.2195859769844029, -0.043036480868005586, -0.18294592075407096, 0.05781766264508032, 0.18449532426714305, 0.08682043220184438, -0.16966076037840128, 0.09224090284001311, 0.012708337620308954, 0.21027211939329155, 0.09664868121992236, 0.06077732127287412, 0.22125728261873942, 0.2557193509315791, -0.005802632468969446, 0.06603937433420183, 0.006242744717109081, -0.12131454634850156, -0.2184611248643431, -0.1581434416581182, -0.1444884107658665, 0.016626937790097645, -0.07180046468031472, -0.1109222008859458, 0.37358683181531116, 0.24771242431836993, 0.13451280889471304, 0.08084591024687629, 0.3252806111608874, 0.033540628249246675, 0.07052951453856435, 0.0445577897297295, 0.07420351851272257, 0.06268105468687231, 0.13917822444955785, -0.15064556103148688, 0.08751403686769102, 0.029968087735254164] |
707.356 | Integration of a Balanced Virtual Manikin in a Virtual Reality Platform
aimed at Virtual Prototyping | The work presented here is aimed at introducing a virtual human controller in
a virtual prototyping framework. After a brief introduction describing the
problem solved in the paper, we describe the interest as for digital humans in
the context of concurrent engineering. This leads us to draw a control
architecture enabling to drive virtual humans in a real-time immersed way, and
to interact with the product, through motion capture. Unfortunately, we show
this control scheme can lead to unfeasible movements because of the lack of
balance control. Introducing such a controller is a problem that was never
addressed in the context of real-time. We propose an implementation of a
balance controller, that we insert into the previously described control
scheme. Next section is dedicated to show the results we obtained. Finally, we
propose a virtual reality platform into which the digital character controller
is integrated.
| cs.RO | the work presented here is aimed at introducing a virtual human controller in a virtual prototyping framework after a brief introduction describing the problem solved in the paper we describe the interest as for digital humans in the context of concurrent engineering this leads us to draw a control architecture enabling to drive virtual humans in a realtime immersed way and to interact with the product through motion capture unfortunately we show this control scheme can lead to unfeasible movements because of the lack of balance control introducing such a controller is a problem that was never addressed in the context of realtime we propose an implementation of a balance controller that we insert into the previously described control scheme next section is dedicated to show the results we obtained finally we propose a virtual reality platform into which the digital character controller is integrated | [['the', 'work', 'presented', 'here', 'is', 'aimed', 'at', 'introducing', 'a', 'virtual', 'human', 'controller', 'in', 'a', 'virtual', 'prototyping', 'framework', 'after', 'a', 'brief', 'introduction', 'describing', 'the', 'problem', 'solved', 'in', 'the', 'paper', 'we', 'describe', 'the', 'interest', 'as', 'for', 'digital', 'humans', 'in', 'the', 'context', 'of', 'concurrent', 'engineering', 'this', 'leads', 'us', 'to', 'draw', 'a', 'control', 'architecture', 'enabling', 'to', 'drive', 'virtual', 'humans', 'in', 'a', 'realtime', 'immersed', 'way', 'and', 'to', 'interact', 'with', 'the', 'product', 'through', 'motion', 'capture', 'unfortunately', 'we', 'show', 'this', 'control', 'scheme', 'can', 'lead', 'to', 'unfeasible', 'movements', 'because', 'of', 'the', 'lack', 'of', 'balance', 'control', 'introducing', 'such', 'a', 'controller', 'is', 'a', 'problem', 'that', 'was', 'never', 'addressed', 'in', 'the', 'context', 'of', 'realtime', 'we', 'propose', 'an', 'implementation', 'of', 'a', 'balance', 'controller', 'that', 'we', 'insert', 'into', 'the', 'previously', 'described', 'control', 'scheme', 'next', 'section', 'is', 'dedicated', 'to', 'show', 'the', 'results', 'we', 'obtained', 'finally', 'we', 'propose', 'a', 'virtual', 'reality', 'platform', 'into', 'which', 'the', 'digital', 'character', 'controller', 'is', 'integrated']] | [-0.13485008702966675, 0.06427962848171993, -0.10916199201461056, 0.022594788333336856, -0.10346988797316263, -0.15143190016327748, 0.05998041824566136, 0.40252443242432745, -0.28613533916208767, -0.3268178379869667, 0.08051054800683953, -0.1972880221774866, -0.19497806869190315, 0.2163561996650593, -0.13061888060725196, 0.04414107394565282, 0.06677224964931093, 0.01005991989875148, -0.003833947745794109, -0.20481903454296868, 0.27479254051657587, 0.025767254171058022, 0.2734030339449387, 0.04834108674609713, 0.14473097774457058, 0.04628799387799769, -0.04340775128582428, 0.019818204991390993, -0.07565184703371729, 0.16601887457554454, 0.284151835707498, 0.1635766992987744, 0.34094743437679675, -0.46449250250027097, -0.17244476358052985, 0.08014122553587216, 0.15242914428356394, 0.1338817643732282, -0.09010074602536343, -0.29063835998932863, 0.09390933174511482, -0.2357566407528417, -0.13802946248445017, -0.08748057293866215, -0.040875712244225475, -0.046591092822752124, -0.2560137824516679, -0.04952949438051417, 0.041290557577178394, 0.0335113866437339, -0.07864663033396938, 0.0012339848302433203, 0.04807088029006865, 0.1766708023653462, -0.026875590982622113, 0.024231391251568906, 0.1416232254195573, -0.11996877713064695, -0.13828677606993708, 0.40122136067727515, 0.0023158579659327094, -0.22595682134530667, 0.16627121191102498, -0.0566836454086648, -0.1104070229134683, 0.10319484423460631, 0.22821874164831665, 0.08588110488710989, -0.20344397391349173, 0.05148033962935281, 0.0007984025371742659, 0.18259216482301469, 0.002843049912039062, -0.014165181576691825, 0.1897264274286813, 0.25255975584531654, 0.06873253707228036, 0.18635159379738414, -0.042708022012535866, -0.12465958619040662, -0.3021030851712065, -0.18838862674631948, -0.10989600451309876, 0.013354674371858609, 0.03545556327916184, -0.13117444047961255, 0.3748192044923881, 0.19121052369411135, 0.18174325495572954, 0.04946386115384641, 0.3616542956117412, 0.11403082816235335, 0.08628592295371446, 0.05243097800311857, 0.2160983413939589, 0.04508606788059014, 0.17195101190551088, -0.2164058265661628, 0.07823567376632629, 0.058628066547279215] |
707.3561 | Form Factors in the Quark Resonance Model | Vector and axial form factors in the quark resonance model are analyzed with
a combination of theoretical and phenomenological arguments. The new form of
form factors is deduced from $\Delta$(1232) excitation models and available
data. The vector part is shown to agree with the resonant contribution to
electron-proton inclusive $F_2$ data. The axial part is obtained by finding a
simultaneous fit to ANL and BNL $\frac{d \sigma}{d Q^2}$ neutrino scattering
data. The best fit corresponds to $C_5^A(0)=0.88$ in the Rarita Schwinger
formalism.
| hep-ph | vector and axial form factors in the quark resonance model are analyzed with a combination of theoretical and phenomenological arguments the new form of form factors is deduced from delta1232 excitation models and available data the vector part is shown to agree with the resonant contribution to electronproton inclusive f_2 data the axial part is obtained by finding a simultaneous fit to anl and bnl fracd sigmad q2 neutrino scattering data the best fit corresponds to c_5a0088 in the rarita schwinger formalism | [['vector', 'and', 'axial', 'form', 'factors', 'in', 'the', 'quark', 'resonance', 'model', 'are', 'analyzed', 'with', 'a', 'combination', 'of', 'theoretical', 'and', 'phenomenological', 'arguments', 'the', 'new', 'form', 'of', 'form', 'factors', 'is', 'deduced', 'from', 'delta1232', 'excitation', 'models', 'and', 'available', 'data', 'the', 'vector', 'part', 'is', 'shown', 'to', 'agree', 'with', 'the', 'resonant', 'contribution', 'to', 'electronproton', 'inclusive', 'f_2', 'data', 'the', 'axial', 'part', 'is', 'obtained', 'by', 'finding', 'a', 'simultaneous', 'fit', 'to', 'anl', 'and', 'bnl', 'fracd', 'sigmad', 'q2', 'neutrino', 'scattering', 'data', 'the', 'best', 'fit', 'corresponds', 'to', 'c_5a0088', 'in', 'the', 'rarita', 'schwinger', 'formalism']] | [-0.06216370424881461, 0.10945339450263418, -0.07803585497895256, 0.12070038898236816, -0.10622516917064787, -0.10673486070008949, 0.03765205026138574, 0.3455007460783236, -0.19370798186864704, -0.25619846531189977, -0.009796118517988362, -0.3392037821933627, -0.03497935939631134, 0.17072665941377635, 0.08287572285626084, 0.08127146799815818, 0.07620901486952789, 0.033672486554132776, -0.03411737581482157, -0.16035779343219475, 0.33215129492455164, 0.05130996817024425, 0.2737586034636479, 0.076043235801626, 0.04740450594545109, 0.030941100715426727, -0.07297317602206022, -0.08849281324073673, -0.1349896371131763, 0.11886171986989211, 0.2509327397374818, 0.09160863776924089, 0.08786193176201777, -0.373846673942171, -0.12593872074212414, 0.02152466003317386, 0.13410704611451366, 0.09896341744461097, 0.0007843518746085465, -0.2414450343698263, 0.020620759483426808, -0.20357442850945517, -0.15944128375849687, -0.12730703412671573, -0.007555694703478366, -0.020406059687957168, -0.4074683833634481, 0.10157484959054272, -0.03815285154305457, 0.042103797115851195, -0.1068802764195425, -0.24381087101064622, -0.015206688293255865, 0.04875458423048258, 0.13807538754917914, 0.13263163086376153, 0.11017384004371707, -0.14836383284418844, -0.11692991678137332, 0.3884024709070218, -0.08260314158687834, -0.1553625929635018, 0.06497940924018622, -0.22978513958514668, -0.0922261991436244, 0.1612061407053261, 0.17814959376701153, 0.011849110234470573, -0.22152667499613016, 0.11059266400698106, -0.07299527180730365, 0.15189976345282047, 0.06408917782246135, -0.03557288689771667, 0.14181723343208433, 0.1583295988617465, -0.10341663615545257, 0.04819542517070659, -0.08865042243851348, -0.06009994632331654, -0.37467226055450736, -0.035781776107296534, -0.11930517167784274, 0.0429125243681483, -0.06015175105931121, -0.07375341100960213, 0.33657602260645947, 0.04456294847186655, 0.28689234326593577, -0.0017079153214581311, 0.3435461638495326, 0.14066459615060012, 0.1307437389041297, 0.06545981646413565, 0.3053971502115019, 0.2235672417707974, 0.1154655230930075, -0.22977061722485814, 0.02184345459099859, 0.04485126793733798] |
707.3562 | Balanced Virtual Humans Interacting with their Environment | The animation of human avatars seems very successful; the computer graphics
industry shows outstanding results in films everyday, the game industry
achieves exploits... Nevertheless, the animation and control processes of such
manikins are very painful. It takes days to a specialist to build such animated
sequences, and it is not adaptive to any type of modifications. Our main
purpose is the virtual human for engineering, especially virtual prototyping.
As for this domain of activity, such amounts of time are prohibitive.
| cs.RO | the animation of human avatars seems very successful the computer graphics industry shows outstanding results in films everyday the game industry achieves exploits nevertheless the animation and control processes of such manikins are very painful it takes days to a specialist to build such animated sequences and it is not adaptive to any type of modifications our main purpose is the virtual human for engineering especially virtual prototyping as for this domain of activity such amounts of time are prohibitive | [['the', 'animation', 'of', 'human', 'avatars', 'seems', 'very', 'successful', 'the', 'computer', 'graphics', 'industry', 'shows', 'outstanding', 'results', 'in', 'films', 'everyday', 'the', 'game', 'industry', 'achieves', 'exploits', 'nevertheless', 'the', 'animation', 'and', 'control', 'processes', 'of', 'such', 'manikins', 'are', 'very', 'painful', 'it', 'takes', 'days', 'to', 'a', 'specialist', 'to', 'build', 'such', 'animated', 'sequences', 'and', 'it', 'is', 'not', 'adaptive', 'to', 'any', 'type', 'of', 'modifications', 'our', 'main', 'purpose', 'is', 'the', 'virtual', 'human', 'for', 'engineering', 'especially', 'virtual', 'prototyping', 'as', 'for', 'this', 'domain', 'of', 'activity', 'such', 'amounts', 'of', 'time', 'are', 'prohibitive']] | [-0.08450233711628244, 0.06358536179031944, -0.08977871955139563, 0.08742318461445393, -0.13014115857949946, -0.15654769518878311, -0.0068324164021760225, 0.43469882663339376, -0.2466096474090591, -0.3527322491398081, 0.11386229510389967, -0.23556961415451952, -0.20394134801463223, 0.2619847633497557, -0.19381228641723283, 0.05945169454207644, 0.12029912590514868, 0.016340762347681448, 0.033371099224314096, -0.24329751914265216, 0.2296061246364843, 0.010145799466408789, 0.29050140908220784, 0.06447369911329588, 0.09435282204649412, 0.003148734319256619, -0.04090267457650043, -0.07153910772758536, -0.00204625497572124, 0.1578381957981037, 0.3828113212250173, 0.19128604051657022, 0.3463624623604119, -0.45272810659371315, -0.17677843809651678, 0.05821190648712218, 0.1328767724800855, 0.10507935217465274, -0.0843747034567059, -0.26746568632952405, 0.12362704858205689, -0.1670162108668592, -0.09183566240571964, -0.09791408839323594, 0.059710381348850206, -0.0038617208309005948, -0.2707286919525359, -0.04519193459273083, 0.030560995952691884, 0.1088070163037628, -0.02324553700746037, -0.08250547391362488, 0.021527003534720278, 0.2535642716276925, 0.06648234339081682, 0.0415246507327538, 0.19275060103973374, -0.18932662268343847, -0.12510869330726565, 0.4678555822465569, 0.02602260664862115, -0.15455495801288635, 0.261901861964725, -0.07761927515384741, -0.15063178449636325, 0.11126169805647805, 0.19678803518181667, 0.08982810233719647, -0.13384944403078408, 0.0621342535931035, 0.016618280322290957, 0.2023397485143505, 0.03655936446302803, -0.015670794009929524, 0.16658189912486704, 0.25664148398209363, 0.0034473305684514345, 0.1075184302724665, -0.027538247569464148, -0.12384134120075033, -0.22614984120864393, -0.19660609224811196, -0.17770138426858467, 0.02052831187920674, -0.08165991729438246, -0.18457712222298142, 0.3354288154223468, 0.1695186810422456, 0.08709662057808601, 0.04538583836983889, 0.33706056547816843, 0.019750964481499978, 0.1373994534558733, 0.03928129405958316, 0.17995852045714855, -0.003833121759817004, 0.23405260284853285, -0.1629951880138833, 0.13403745560790412, -0.0040749925654381515] |
707.3563 | Virtual reality: A human centered tool for improving Manufacturing | Manufacturing is using Virtual Reality tools to enhance the product life
cycle. Their definitions are still in flux and it is necessary to define their
connections. Thus, firstly, we will introduce more closely some definitions
where we will find that, if the Virtual manufacturing concepts originate from
machining operations and evolve in this manufacturing area, there exist a lot
of applications in different fields such as casting, forging, sheet
metalworking and robotics (mechanisms). From the recent projects in Europe or
in USA, we notice that the human perception or the simulation of mannequin is
more and more needed in both fields. In this context, we have isolated some
applications as ergonomic studies, assembly and maintenance simulation, design
or training where the virtual reality tools can be applied. Thus, we find out a
family of applications where the virtual reality tools give the engineers the
main role in the optimization process. We will illustrate our paper by several
examples where virtual reality interfaces are used and combined with
optimization tools as multi-agent systems.
| cs.RO | manufacturing is using virtual reality tools to enhance the product life cycle their definitions are still in flux and it is necessary to define their connections thus firstly we will introduce more closely some definitions where we will find that if the virtual manufacturing concepts originate from machining operations and evolve in this manufacturing area there exist a lot of applications in different fields such as casting forging sheet metalworking and robotics mechanisms from the recent projects in europe or in usa we notice that the human perception or the simulation of mannequin is more and more needed in both fields in this context we have isolated some applications as ergonomic studies assembly and maintenance simulation design or training where the virtual reality tools can be applied thus we find out a family of applications where the virtual reality tools give the engineers the main role in the optimization process we will illustrate our paper by several examples where virtual reality interfaces are used and combined with optimization tools as multiagent systems | [['manufacturing', 'is', 'using', 'virtual', 'reality', 'tools', 'to', 'enhance', 'the', 'product', 'life', 'cycle', 'their', 'definitions', 'are', 'still', 'in', 'flux', 'and', 'it', 'is', 'necessary', 'to', 'define', 'their', 'connections', 'thus', 'firstly', 'we', 'will', 'introduce', 'more', 'closely', 'some', 'definitions', 'where', 'we', 'will', 'find', 'that', 'if', 'the', 'virtual', 'manufacturing', 'concepts', 'originate', 'from', 'machining', 'operations', 'and', 'evolve', 'in', 'this', 'manufacturing', 'area', 'there', 'exist', 'a', 'lot', 'of', 'applications', 'in', 'different', 'fields', 'such', 'as', 'casting', 'forging', 'sheet', 'metalworking', 'and', 'robotics', 'mechanisms', 'from', 'the', 'recent', 'projects', 'in', 'europe', 'or', 'in', 'usa', 'we', 'notice', 'that', 'the', 'human', 'perception', 'or', 'the', 'simulation', 'of', 'mannequin', 'is', 'more', 'and', 'more', 'needed', 'in', 'both', 'fields', 'in', 'this', 'context', 'we', 'have', 'isolated', 'some', 'applications', 'as', 'ergonomic', 'studies', 'assembly', 'and', 'maintenance', 'simulation', 'design', 'or', 'training', 'where', 'the', 'virtual', 'reality', 'tools', 'can', 'be', 'applied', 'thus', 'we', 'find', 'out', 'a', 'family', 'of', 'applications', 'where', 'the', 'virtual', 'reality', 'tools', 'give', 'the', 'engineers', 'the', 'main', 'role', 'in', 'the', 'optimization', 'process', 'we', 'will', 'illustrate', 'our', 'paper', 'by', 'several', 'examples', 'where', 'virtual', 'reality', 'interfaces', 'are', 'used', 'and', 'combined', 'with', 'optimization', 'tools', 'as', 'multiagent', 'systems']] | [-0.08712653003614071, 0.12077783909355572, -0.07190956249025983, 0.07159636005037608, -0.07334922645024436, -0.11672676197621365, 0.008006784999282857, 0.4110648377451959, -0.26733049810972326, -0.3328542972286773, 0.14051123562561305, -0.24116910246287493, -0.23873449813135963, 0.2345903826089641, -0.1458426305406922, 0.03014622605879531, 0.08176504214954844, -0.005160699825907169, -0.016057714416515514, -0.24203854836767194, 0.31894398516932027, 0.006680728442598741, 0.27215548271724826, 0.06394627895797596, 0.025150881794573695, 0.018858526790038098, -0.04139956292665163, 0.002452124657412601, -0.10069525739104286, 0.1454461518296739, 0.3254264665721526, 0.21658623328724833, 0.3313831493994871, -0.4878738098128071, -0.17560523615738508, 0.11062289492855239, 0.14138612591087557, 0.06732004606246211, -0.06942015143676843, -0.2580125879897021, 0.07897159207319884, -0.18367644177673947, -0.11038195951618417, -0.08125238956038862, -0.005495850245879833, 0.022950480453843295, -0.2106704115975908, -0.05810390482927391, 0.023291459386940872, 0.08029543341484008, -0.04036367128245792, -0.10404094896647473, -0.0072635008160263125, 0.19274623420625536, 0.04588330604611804, 0.003914739692930219, 0.18201491384845508, -0.14714203072105383, -0.1648373951334073, 0.41332925205913557, 0.02801909750100052, -0.20256131087960458, 0.25094857287111283, -0.07820962578312732, -0.1612962778981878, 0.05985843467960665, 0.20146016865362262, 0.07191164902043204, -0.16226294954634965, 0.060103666268121234, 0.02682972102707555, 0.1107681822004663, 0.042894984293609946, 0.011692605983076055, 0.20380716439239074, 0.1807158884354109, 0.05778966325221497, 0.12994108738534715, -0.028579238680872233, -0.1133230423587266, -0.2792253722111846, -0.19612089910566113, -0.11615241909884241, 0.04192764379847578, -0.020389178841067532, -0.15947703700404353, 0.326782044873378, 0.20386087171852502, 0.12588515892207927, 0.008055672489464023, 0.3344757914757031, 0.051238988045613866, 0.10396812125014379, 0.07128892273393048, 0.21330666572003096, 0.0582995226723142, 0.18222488925337446, -0.10615698073761873, 0.07524882112751542, -0.01493758633922309] |
707.3564 | A New Six Degree-of-Freedom Haptic Device based on the Orthoglide and
the Agile Eye | The aim of this paper is to present a new six degree-of-freedom (dof) haptic
device using two parallel mechanisms. The first one, called orthoglide,
provides the translation motions and the second one produces the rotational
motions. These two motions are decoupled to simplify the direct and inverse
kinematics, as it is needed for real-times control. To reduce the inertial
load, the motors are fixed on the base and a transmission with two universal
joints is used to transmit the rotational motions from the base to the
end-effector. The main feature of the orthoglide and of the agile eye mechanism
is the existence of an isotropic configuration. The length of the legs and the
range limits of the orthoglide are optimized to have homogeneous performance
throughout the Cartesian workspace, which has a nearly cubic workspace. These
properties permit to have a high stiffness throughout the workspace and
workspace limits that are easily understandable by the user.
| cs.RO | the aim of this paper is to present a new six degreeoffreedom dof haptic device using two parallel mechanisms the first one called orthoglide provides the translation motions and the second one produces the rotational motions these two motions are decoupled to simplify the direct and inverse kinematics as it is needed for realtimes control to reduce the inertial load the motors are fixed on the base and a transmission with two universal joints is used to transmit the rotational motions from the base to the endeffector the main feature of the orthoglide and of the agile eye mechanism is the existence of an isotropic configuration the length of the legs and the range limits of the orthoglide are optimized to have homogeneous performance throughout the cartesian workspace which has a nearly cubic workspace these properties permit to have a high stiffness throughout the workspace and workspace limits that are easily understandable by the user | [['the', 'aim', 'of', 'this', 'paper', 'is', 'to', 'present', 'a', 'new', 'six', 'degreeoffreedom', 'dof', 'haptic', 'device', 'using', 'two', 'parallel', 'mechanisms', 'the', 'first', 'one', 'called', 'orthoglide', 'provides', 'the', 'translation', 'motions', 'and', 'the', 'second', 'one', 'produces', 'the', 'rotational', 'motions', 'these', 'two', 'motions', 'are', 'decoupled', 'to', 'simplify', 'the', 'direct', 'and', 'inverse', 'kinematics', 'as', 'it', 'is', 'needed', 'for', 'realtimes', 'control', 'to', 'reduce', 'the', 'inertial', 'load', 'the', 'motors', 'are', 'fixed', 'on', 'the', 'base', 'and', 'a', 'transmission', 'with', 'two', 'universal', 'joints', 'is', 'used', 'to', 'transmit', 'the', 'rotational', 'motions', 'from', 'the', 'base', 'to', 'the', 'endeffector', 'the', 'main', 'feature', 'of', 'the', 'orthoglide', 'and', 'of', 'the', 'agile', 'eye', 'mechanism', 'is', 'the', 'existence', 'of', 'an', 'isotropic', 'configuration', 'the', 'length', 'of', 'the', 'legs', 'and', 'the', 'range', 'limits', 'of', 'the', 'orthoglide', 'are', 'optimized', 'to', 'have', 'homogeneous', 'performance', 'throughout', 'the', 'cartesian', 'workspace', 'which', 'has', 'a', 'nearly', 'cubic', 'workspace', 'these', 'properties', 'permit', 'to', 'have', 'a', 'high', 'stiffness', 'throughout', 'the', 'workspace', 'and', 'workspace', 'limits', 'that', 'are', 'easily', 'understandable', 'by', 'the', 'user']] | [-0.17425533583653824, 0.09758759776741499, -0.055247599881916465, -0.04415468490673471, -0.13097199150693736, -0.12340859487023834, -1.5993517152239365e-05, 0.41902736083955155, -0.2749103687464731, -0.30498485742499687, 0.10003337093161013, -0.21785111012626682, -0.10451329025960007, 0.19834590277501515, -0.059641608889758974, 0.0553566832881566, 0.0429454517838781, 0.044724556067111815, -0.011824304377433372, -0.2087193699485574, 0.2947891904615688, 0.05169299821816869, 0.2748829600304462, -0.015783694914433283, 0.14888674919735398, -0.017713122919516322, -0.006428809776031352, -0.007058945091368703, -0.1118498747587123, 0.16777299354177924, 0.22370691631176787, 0.10243455294894611, 0.21112800491731856, -0.4042671376282906, -0.16452550050475961, 0.038967116267190544, 0.14755139226251124, 0.07820914325519017, 0.02970205955192229, -0.26479500991764005, 0.0897411800158972, -0.14025411165210527, -0.12295820114396319, -0.06081497076862528, 0.004789483379693581, 0.060045270733051485, -0.22721903699196197, -0.0008513140038575058, 0.06717865432721454, 0.08561734271586521, -0.08279418000987694, -0.07442244260825893, -0.04279349040385191, 0.2259135180419045, 0.045351868982172826, -0.0003296737740566204, 0.1517985826962954, -0.10581244806178494, -0.11992804285478972, 0.42619094623905884, 0.036511020813524336, -0.2645927643246175, 0.23436049458437733, -0.10222612207380498, -0.08286012856247411, 0.17129190575464495, 0.17849451825839116, 0.0932480127599042, -0.18630100685162712, 0.02946052987615324, -0.015243429339841588, 0.1472703219427691, 0.06797177423178763, -0.016947610594041936, 0.18583862251124356, 0.17769591750988326, 0.10091492261846441, 0.14980552932428945, -0.1451153589439784, -0.10225926965547653, -0.31623040198336366, -0.1773488367907703, -0.14307890803395928, -0.03249616023189352, -0.0941652029997657, -0.12494405869140544, 0.4016901258887215, 0.13574542561750072, 0.19446607533231522, 0.06499746877945016, 0.36861302830617537, 0.05251616469883759, 0.09166032283615272, 0.08688362956337341, 0.2856129864230752, 0.09959215700381448, 0.11929020058974478, -0.22503557262428908, 0.05938702564257161, 0.05074263651184012] |
707.3565 | KCrF_3: Electronic Structure, Magnetic and Orbital Ordering from First
Principles | The electronic, magnetic and orbital structures of KCrF_3 are determined in
all its recently identified crystallographic phases (cubic, tetragonal, and
monoclinic) with a set of {\it ab initio} LSDA and LSDA+U calculations. The
high-temperature undistorted cubic phase is metallic within the LSDA, but at
the LSDA+U level it is a Mott insulator with a gap of 1.72 eV. The tetragonal
and monoclinic phases of KCrF_3 exhibit cooperative Jahn-Teller distortions
concomitant with staggered 3x^2-r^2/3y^2-r^2 orbital order. We find that the
energy gain due to the Jahn-Teller distortion is 82/104 meV per chromium ion in
the tetragonal/monoclinic phase, respectively. These phases show A-type
magnetic ordering and have a bandgap of 2.48 eV. In this Mott insulating state
KCrF_3 has a substantial conduction bandwidth of 2.1 eV, leading to the
possibility for the kinetic energy of charge carriers in electron- or
hole-doped derivatives of KCrF_3 to overcome the polaron localization at low
temperatures, in analogy with the situation encountered in the colossal
magnetoresistive manganites.
| cond-mat.str-el cond-mat.mtrl-sci | the electronic magnetic and orbital structures of kcrf_3 are determined in all its recently identified crystallographic phases cubic tetragonal and monoclinic with a set of it ab initio lsda and lsdau calculations the hightemperature undistorted cubic phase is metallic within the lsda but at the lsdau level it is a mott insulator with a gap of 172 ev the tetragonal and monoclinic phases of kcrf_3 exhibit cooperative jahnteller distortions concomitant with staggered 3x2r23y2r2 orbital order we find that the energy gain due to the jahnteller distortion is 82104 mev per chromium ion in the tetragonalmonoclinic phase respectively these phases show atype magnetic ordering and have a bandgap of 248 ev in this mott insulating state kcrf_3 has a substantial conduction bandwidth of 21 ev leading to the possibility for the kinetic energy of charge carriers in electron or holedoped derivatives of kcrf_3 to overcome the polaron localization at low temperatures in analogy with the situation encountered in the colossal magnetoresistive manganites | [['the', 'electronic', 'magnetic', 'and', 'orbital', 'structures', 'of', 'kcrf_3', 'are', 'determined', 'in', 'all', 'its', 'recently', 'identified', 'crystallographic', 'phases', 'cubic', 'tetragonal', 'and', 'monoclinic', 'with', 'a', 'set', 'of', 'it', 'ab', 'initio', 'lsda', 'and', 'lsdau', 'calculations', 'the', 'hightemperature', 'undistorted', 'cubic', 'phase', 'is', 'metallic', 'within', 'the', 'lsda', 'but', 'at', 'the', 'lsdau', 'level', 'it', 'is', 'a', 'mott', 'insulator', 'with', 'a', 'gap', 'of', '172', 'ev', 'the', 'tetragonal', 'and', 'monoclinic', 'phases', 'of', 'kcrf_3', 'exhibit', 'cooperative', 'jahnteller', 'distortions', 'concomitant', 'with', 'staggered', '3x2r23y2r2', 'orbital', 'order', 'we', 'find', 'that', 'the', 'energy', 'gain', 'due', 'to', 'the', 'jahnteller', 'distortion', 'is', '82104', 'mev', 'per', 'chromium', 'ion', 'in', 'the', 'tetragonalmonoclinic', 'phase', 'respectively', 'these', 'phases', 'show', 'atype', 'magnetic', 'ordering', 'and', 'have', 'a', 'bandgap', 'of', '248', 'ev', 'in', 'this', 'mott', 'insulating', 'state', 'kcrf_3', 'has', 'a', 'substantial', 'conduction', 'bandwidth', 'of', '21', 'ev', 'leading', 'to', 'the', 'possibility', 'for', 'the', 'kinetic', 'energy', 'of', 'charge', 'carriers', 'in', 'electron', 'or', 'holedoped', 'derivatives', 'of', 'kcrf_3', 'to', 'overcome', 'the', 'polaron', 'localization', 'at', 'low', 'temperatures', 'in', 'analogy', 'with', 'the', 'situation', 'encountered', 'in', 'the', 'colossal', 'magnetoresistive', 'manganites']] | [-0.18224451151301604, 0.23089767967236563, 0.01935470951779646, 0.014374216727080679, -0.016779100252410584, -0.11648197329175547, 0.15200398147762198, 0.4435591607020711, -0.26045144541458515, -0.29365138973127, -0.019614283556306043, -0.3548910158580907, -0.09243515389385698, 0.07542892872303161, 0.06862705638456457, -0.02511934740899926, -0.04443374325363141, -0.042539672711175876, -0.18833992122262483, -0.21334844326260705, 0.21427183046515258, 0.03259196424118753, 0.27485982047645785, 0.10437564272726388, 0.024670052593983943, -0.041605618166584965, 0.19574997942519826, -0.005257103217285384, -0.16460701110643744, 0.035904940305594005, 0.31566907077699713, -0.17631282182351785, 0.19156249809670467, -0.40038363921379894, -0.2175228189978655, -0.027608346501541026, 0.0703493121099137, 0.14403473676486914, -0.08447619089593161, -0.2716678612039618, 0.07434736411292223, -0.17774780648438343, -0.09892000892029712, -0.12809399584214548, -0.05262627064853719, -0.007006347799196301, -0.22610845727518014, 0.17347692576406887, 0.03875214451156651, 0.09637516070959566, -0.182677465346759, -0.18634035448842454, -0.11936953808063841, -0.004104830411046087, 0.06457099099511737, 0.12761026302900944, 0.08755800117586253, -0.050543640486884325, -0.11303375456657894, 0.462102297412337, 0.027347331265508895, 0.0018563302983925238, 0.14887025172136864, -0.22002217025558665, -0.0732573383581479, 0.259155675733708, 0.05820563228789178, 0.04625632004400879, -0.10253701823267136, 0.12947728278085371, 0.04386048517980665, 0.22558406772397757, 0.044300091026772584, 0.11423087718094108, 0.23731752807558543, 0.18606922603263548, 0.04884574409287259, 0.09873061362551833, -0.14267885379431733, -0.05781099978840248, -0.15188384402262153, -0.15444454503884106, -0.23633787864833813, 0.03858085124571837, -0.09946893825026965, -0.2152174985645421, 0.41569745342053893, 0.11684797067889276, 0.1289965293821205, -0.11660250050232471, 0.20733097248634547, 0.08982046405462996, 0.06990687033958123, 0.019374074998645567, 0.26184504291587424, 0.1720152465134578, 0.14372599761312208, -0.3201895643746094, 0.0485877925295781, 0.026178165769450507] |
707.3566 | Renault's Equivalence Theorem for Groupoid Crossed Products | We provide an exposition and proof of Renault's equivalence theorem for
crossed products by locally Hausdorff, locally compact groupoids. Our approach
stresses the bundle approach, concrete imprimitivity bimodules and is a
preamble to a detailed treatment of the Brauer semigroup for a locally
Hausdorff, locally compact groupoid.
| math.OA | we provide an exposition and proof of renaults equivalence theorem for crossed products by locally hausdorff locally compact groupoids our approach stresses the bundle approach concrete imprimitivity bimodules and is a preamble to a detailed treatment of the brauer semigroup for a locally hausdorff locally compact groupoid | [['we', 'provide', 'an', 'exposition', 'and', 'proof', 'of', 'renaults', 'equivalence', 'theorem', 'for', 'crossed', 'products', 'by', 'locally', 'hausdorff', 'locally', 'compact', 'groupoids', 'our', 'approach', 'stresses', 'the', 'bundle', 'approach', 'concrete', 'imprimitivity', 'bimodules', 'and', 'is', 'a', 'preamble', 'to', 'a', 'detailed', 'treatment', 'of', 'the', 'brauer', 'semigroup', 'for', 'a', 'locally', 'hausdorff', 'locally', 'compact', 'groupoid']] | [-0.15300263885527532, 0.06876127538797594, -0.14611101895570755, 0.12664754062821654, -0.15167628621008802, -0.10865560313686728, 0.04209704532664507, 0.4150291301924339, -0.3308414025826657, -0.11779464317604582, 0.11471170341556376, -0.2252977756347428, -0.09611907102009083, 0.26381066861621877, -0.22678042771889173, -0.050940662949405455, 0.11178147317247188, 0.09371675693174883, -0.11031168116692533, -0.22564559283497881, 0.4820699512740558, 0.0437064104257746, 0.2946585676771529, 0.08849543768991815, 0.11465721053289289, 0.009555087206845588, -0.061921807709447246, 0.005653201027753505, -0.15693124197423458, 0.13153982322980115, 0.3649984841492582, 0.04526113088619202, 0.2325649516300318, -0.37300599505134086, -0.11646168437251385, 0.12590362323804738, 0.0098468699750114, -0.01746579677738408, -0.042437328104960155, -0.4131123921933009, 0.08940306951866504, -0.29399375379719633, -0.15541673585415838, -0.13501618117926287, 0.11427308405016331, -0.0884372616345261, -0.24605835014161595, -0.026029085215339635, 0.1841562308688113, 0.1075453412461471, -0.1336463633033031, 0.021231681524597583, -0.06550531617880977, 0.07702111287359545, -0.09339803634112344, 0.019815138189439127, 0.196376456225172, 0.07704254037680779, -0.1420604628015389, 0.32646004645589816, -0.024612207778115222, -0.25416979811927104, 0.1438250323321591, -0.13887409193124226, -0.14688351046928066, 0.17482300315725993, 0.053216493302123975, 0.22086785456284563, -0.06916923908160087, 0.152240177237508, -0.13139828320275596, 0.024798465258580572, 0.039140286320384514, 0.021474373863732563, 0.09276890042337015, 0.15989400097664366, 0.16591741101063312, 0.1451103718396514, 0.11846042014262144, 0.04190488016985832, -0.4028479662386978, -0.24977665481732247, -0.07193312831619318, 0.20602753110467753, -0.12906080232673087, -0.24240192081382933, 0.3462485990467224, 0.04699448023506619, 0.09309970940205645, 0.2246003581528017, 0.2772228009602491, 0.01194316822232956, 0.002511748459507176, 0.08770410263752366, 0.06900724952921589, 0.35188216019045326, -0.08303358690179091, -0.03678232846543827, -0.104519184044701, 0.33932445895798663] |
707.3567 | Automatizing the application of Mellin-Barnes representations for
Feynman integrals | Feynman diagrams may be evaluated by Mellin-Barnes representations of their
Feynman parameter integrals in d=4-2\eps dimensions. Recently, the Mathematica
toolkit AMBRE has been developed for the automatic derivation of such
representations with a loop-by-loop approach. We describe the package and
exemplify its use with the \eps-expansion of the massive one-loop QED vertex
function.
| hep-ph | feynman diagrams may be evaluated by mellinbarnes representations of their feynman parameter integrals in d42eps dimensions recently the mathematica toolkit ambre has been developed for the automatic derivation of such representations with a loopbyloop approach we describe the package and exemplify its use with the epsexpansion of the massive oneloop qed vertex function | [['feynman', 'diagrams', 'may', 'be', 'evaluated', 'by', 'mellinbarnes', 'representations', 'of', 'their', 'feynman', 'parameter', 'integrals', 'in', 'd42eps', 'dimensions', 'recently', 'the', 'mathematica', 'toolkit', 'ambre', 'has', 'been', 'developed', 'for', 'the', 'automatic', 'derivation', 'of', 'such', 'representations', 'with', 'a', 'loopbyloop', 'approach', 'we', 'describe', 'the', 'package', 'and', 'exemplify', 'its', 'use', 'with', 'the', 'epsexpansion', 'of', 'the', 'massive', 'oneloop', 'qed', 'vertex', 'function']] | [-0.05479916466363505, 0.08062220193153503, -0.11379185989133868, 0.07983699881964747, -0.12604333215630523, -0.08389109064477916, -0.025202194970630695, 0.37797113394766463, -0.16757411924282126, -0.2859759052494066, 0.051024996271521295, -0.26568314838497076, -0.20940624783728637, 0.1938871218293321, 0.003441090631645684, 0.08852912982190758, 0.12393498391497369, 0.04720800099711792, -0.08791262734973547, -0.2765940366605041, 0.3167341237559038, 0.031989074038232077, 0.20778385037099759, 0.07729609197407376, 0.14376595375292442, 0.05119436043405942, -0.13647275141385548, -0.05800102322417147, -0.11223052272244412, 0.1355521266768668, 0.2764163868246125, 0.1515497373480934, 0.18699783713136817, -0.3708417143709227, -0.1605730957771633, 0.023274070181536908, 0.20738740135714703, 0.10541403045256932, -0.007945772004770297, -0.31344897305483327, 0.05379462234821974, -0.2883559699699867, -0.17102687189574628, -0.1989868049710697, 0.006950779361467736, -0.04968591779470444, -0.22226054279827603, -0.03817185812501931, -0.056611980142656206, 0.09091525811555923, 0.018910161345083193, -0.15350345302117513, -0.01904229294992618, 0.14319181598394232, -0.002071576959946576, 0.06783069663808919, 0.06343557222691529, -0.17976859650191138, -0.20388408096543714, 0.3550997819824546, -0.01261078912591306, -0.23765493623510586, 0.13298926036804914, -0.10359132639588971, -0.1692211594724772, 0.10492254691381081, 0.13897862261636, 0.14588878918256537, -0.2470994902884259, 0.25164697914471046, 0.04844200944381894, 0.06303095250554822, 0.07265286574450631, -0.032158867693414875, 0.15252082683511226, 0.1062972834744655, -0.1268451354082893, 0.19971896214730234, -0.010115929477501149, -0.08598877103570118, -0.31895010374194266, -0.19727975469739997, -0.12719766087556147, -0.028076406531766348, -0.12903055987821882, -0.22941221866537542, 0.4182143421734081, 0.14920036140692366, 0.10345436168512713, 0.0632582842463664, 0.30967068487741783, 0.22305327770756742, 0.20739327530449658, 0.06705019652259116, 0.1637929190388497, 0.1332707236995738, 0.06113664705908912, -0.19715448505446023, -0.04174152977636778, 0.20840193566811435] |
707.3568 | ALICE Detector Status and Commissioning | The Large Hadron Collider (LHC) will start operation in the end of 2007
colliding proton and lead beams at \surd S = 14 TeV and \surd S_{NN} = 5.5 TeV,
respectively. The accelerator and the experiments are under construction and
detailed studies of the physics program are being prepared. I will in this
paper review the current status of the ALICE experiment and the heavy ion
physics aspects that are unique at LHC.
| physics.ins-det | the large hadron collider lhc will start operation in the end of 2007 colliding proton and lead beams at surd s 14 tev and surd s_nn 55 tev respectively the accelerator and the experiments are under construction and detailed studies of the physics program are being prepared i will in this paper review the current status of the alice experiment and the heavy ion physics aspects that are unique at lhc | [['the', 'large', 'hadron', 'collider', 'lhc', 'will', 'start', 'operation', 'in', 'the', 'end', 'of', '2007', 'colliding', 'proton', 'and', 'lead', 'beams', 'at', 'surd', 's', '14', 'tev', 'and', 'surd', 's_nn', '55', 'tev', 'respectively', 'the', 'accelerator', 'and', 'the', 'experiments', 'are', 'under', 'construction', 'and', 'detailed', 'studies', 'of', 'the', 'physics', 'program', 'are', 'being', 'prepared', 'i', 'will', 'in', 'this', 'paper', 'review', 'the', 'current', 'status', 'of', 'the', 'alice', 'experiment', 'and', 'the', 'heavy', 'ion', 'physics', 'aspects', 'that', 'are', 'unique', 'at', 'lhc']] | [-0.06276404833368643, 0.27590814972637406, -0.0972987885560683, 0.08736089489285008, -0.0030974264610821095, -0.1804598768489291, -0.050956351648111055, 0.33914406343140235, -0.2087121114764415, -0.34203205903021383, 0.08385170337294792, -0.3778685417918252, 0.07963331752050092, 0.1853168232327091, 0.05651453566330839, 0.07948784547215196, 0.17664561840430112, -0.03244578095913773, -0.06012981204958764, -0.26281595214361875, 0.25903723956885893, 0.21076612517526241, 0.2329674496144896, 0.14766650461562267, 0.07616222303518107, 0.0013085161270180218, -0.03949483521495828, -0.05960355647249331, -0.1308696719176918, 0.07172126372174269, 0.3145093846390627, 0.1321897121034825, 0.18706044566515886, -0.4089463333481214, -0.039312831647153025, 0.08780357327712306, 0.05243710653764576, 0.07560037339801415, -0.0850721074409232, -0.24770924594568114, 0.12002177006551917, -0.23764595879950154, -0.16423146535550626, 0.02991406876646297, 0.003680434143564231, 0.023944536866751354, -0.2496009026194962, 0.002377792317289072, -0.025388358114943117, 0.10478263462460796, 0.008937960090509183, -0.23480789844786198, 0.015416839487955605, -0.035206312149710636, 0.03535428283814813, 0.05311863826797672, 0.18066179846793834, -0.14171161702309382, -0.18174306597088424, 0.3276416317520427, 0.0278939187893985, -0.044384617745404094, 0.25519123755421647, -0.25124597867531046, -0.1823825650769745, 0.09380749939665409, 0.27503803405176164, 0.04573718450543746, -0.19938624630564114, 0.12606588068572333, -0.015238801542092378, 0.14035821620902272, 0.0877472532709772, 0.051362273853901824, 0.23518613507334982, 0.2430997316423856, 0.01324412704963552, 0.03893615983932404, -0.12475105399974215, -0.015858247128485794, -0.4920211217667855, -0.07368994908592612, -0.08292623870337093, 0.029771629735683158, 0.054846612048953525, 0.06652735692488265, 0.4257819399657384, 0.13197327953842009, 0.22267949931375997, -0.05614591093445328, 0.2254951447248459, 0.011502047174308501, -0.0055903923582174145, 0.09527477932643821, 0.309407167189138, 0.06416881462873918, 0.2581635335276664, -0.21578761056380372, -0.019753972009401505, 0.022480825906698133] |
707.3569 | Transport through a double barrier in Large Radius Carbon Nanotubes in
the presence of a transverse magnetic field | We discuss the Luttinger Liquid behaviour of Large Radius Carbon Nanotube
e.g. the Multi Wall ones (MWNT), under the action of a transverse magnetic
field $B$. Our results imply a reduction with $B$ in the value of the $bulk$
critical exponent, $\alpha_{bulk}$, for the tunneling density of states, which
is in agreement with that observed in transport experiments. Then, the problem
of the transport through a Quantum Dot formed by two intramolecular tunneling
barriers along the MWNT, weakly coupled to Tomonaga-Luttinger liquids is
studied, including the action of a strong transverse magnetic field $B$. {We
predict the presence of some peaks in the conductance G versus $B$, related to
the magnetic flux quantization in the ballistic regime (at a very low
temperature, $T$) and also at higher $T$, where the Luttinger behaviour
dominates}. The temperature dependence of the maximum $G_{max}$ of the
conductance peak according to the Sequential Tunneling follows a power law,
$G\propto T^{\gamma_e-1}$ with $\gamma_e$ linearly dependent on the critical
exponent, $\alpha_{end}$, strongly reduced by $B$.
| cond-mat.mes-hall cond-mat.str-el | we discuss the luttinger liquid behaviour of large radius carbon nanotube eg the multi wall ones mwnt under the action of a transverse magnetic field b our results imply a reduction with b in the value of the bulk critical exponent alpha_bulk for the tunneling density of states which is in agreement with that observed in transport experiments then the problem of the transport through a quantum dot formed by two intramolecular tunneling barriers along the mwnt weakly coupled to tomonagaluttinger liquids is studied including the action of a strong transverse magnetic field b we predict the presence of some peaks in the conductance g versus b related to the magnetic flux quantization in the ballistic regime at a very low temperature t and also at higher t where the luttinger behaviour dominates the temperature dependence of the maximum g_max of the conductance peak according to the sequential tunneling follows a power law gpropto tgamma_e1 with gamma_e linearly dependent on the critical exponent alpha_end strongly reduced by b | [['we', 'discuss', 'the', 'luttinger', 'liquid', 'behaviour', 'of', 'large', 'radius', 'carbon', 'nanotube', 'eg', 'the', 'multi', 'wall', 'ones', 'mwnt', 'under', 'the', 'action', 'of', 'a', 'transverse', 'magnetic', 'field', 'b', 'our', 'results', 'imply', 'a', 'reduction', 'with', 'b', 'in', 'the', 'value', 'of', 'the', 'bulk', 'critical', 'exponent', 'alpha_bulk', 'for', 'the', 'tunneling', 'density', 'of', 'states', 'which', 'is', 'in', 'agreement', 'with', 'that', 'observed', 'in', 'transport', 'experiments', 'then', 'the', 'problem', 'of', 'the', 'transport', 'through', 'a', 'quantum', 'dot', 'formed', 'by', 'two', 'intramolecular', 'tunneling', 'barriers', 'along', 'the', 'mwnt', 'weakly', 'coupled', 'to', 'tomonagaluttinger', 'liquids', 'is', 'studied', 'including', 'the', 'action', 'of', 'a', 'strong', 'transverse', 'magnetic', 'field', 'b', 'we', 'predict', 'the', 'presence', 'of', 'some', 'peaks', 'in', 'the', 'conductance', 'g', 'versus', 'b', 'related', 'to', 'the', 'magnetic', 'flux', 'quantization', 'in', 'the', 'ballistic', 'regime', 'at', 'a', 'very', 'low', 'temperature', 't', 'and', 'also', 'at', 'higher', 't', 'where', 'the', 'luttinger', 'behaviour', 'dominates', 'the', 'temperature', 'dependence', 'of', 'the', 'maximum', 'g_max', 'of', 'the', 'conductance', 'peak', 'according', 'to', 'the', 'sequential', 'tunneling', 'follows', 'a', 'power', 'law', 'gpropto', 'tgamma_e1', 'with', 'gamma_e', 'linearly', 'dependent', 'on', 'the', 'critical', 'exponent', 'alpha_end', 'strongly', 'reduced', 'by', 'b']] | [-0.1856431843402485, 0.2274876787380146, -0.06014249583875591, -0.00873985133613601, 0.009230762850634303, -0.17981996107846498, 0.06764010853472759, 0.32116263353576263, -0.26001465621432573, -0.2829708125301157, 0.014187484239510289, -0.30193146493737444, -0.09447550852500805, 0.1900020576561942, 0.025982070113108918, 0.01859678127661799, -0.010363575624245586, 0.06255684042293014, -0.06444527384486388, -0.19488641704136336, 0.2841386216495073, 0.036237881187998665, 0.3170279352728165, 0.10597457898547873, 0.05494186883002068, 0.022770586152645676, 0.06914559929264766, 0.09251292094294596, -0.17360500698423217, 0.02235094751972197, 0.184190626853061, -0.0851571293152643, 0.19804702352055095, -0.39864438077378456, -0.1938928161190371, 0.0158332153759671, 0.1271095649913398, 0.06332900395094784, -0.010839519743581839, -0.23410338595735306, 0.06500008757593054, -0.13406794839397523, -0.11073822875464844, -0.018637486609319846, 0.03924490660852329, 0.020098463081663024, -0.260095353452771, 0.14800747220076366, 0.04250535713790944, 0.053424513761913685, -0.05269645124137627, -0.09409353968503913, -0.04638540450286007, 0.055958336374059205, 0.08219028191189423, 0.06418637188123257, 0.21585110902052485, -0.18070115131805792, -0.09133870135569437, 0.3404072396457195, -0.13006402712992646, -0.12251706082430301, 0.17775710671857903, -0.2301550344479355, -0.08546020213768564, 0.16428580629554662, 0.08506263983859257, 0.11609276334960614, -0.10335234544437491, 0.09387892409577034, -0.01616769786359686, 0.12333759672191898, 0.038100412582527055, 0.02537165109141356, 0.23909524411358166, 0.1630046150308441, 0.06011750281816631, 0.13975144905941278, -0.1436284666415304, -0.08586538423445414, -0.29519889779727565, -0.1433869660521547, -0.1873390767723322, 0.10211652359558326, -0.09314184473310667, -0.18248377634762702, 0.40019255119347663, 0.11044237153378851, 0.24538853746613093, 0.022404409069426808, 0.2289471183988181, 0.1681681990207201, 0.0624876103621456, 0.0606050851529069, 0.21716550368282972, 0.20386483650372336, 0.12562783986442919, -0.34749882127807447, 0.03451704479838637, 0.014227047360812624] |
707.357 | The UV properties of E+A galaxies: constraints on feedback-driven
quenching of star formation | We present the first large-scale study of E+A (post-starburst) galaxies that
incorporates photometry in the ultraviolet (UV) wavelengths. We find that the
starburst that creates the E+A galaxy typically takes place within the last Gyr
and creates a high fraction (20-60 percent) of the stellar mass in the remnant
over a short timescale (< 0.1 Gyrs). We find a tight correlation between the
luminosity of our E+A galaxies and the implied star formation rate (SFR) during
the starburst. While low-luminosity E+As (M(z) > -20) exhibit implied SFRs of
less than 50 solar masses per year, their luminous counterparts (M(z) < -22)
shows SFRs greater than 300 and as high as 2000 solar masses per year,
suggesting that luminous and ultra-luminous infrared galaxies in the
low-redshift Universe could be the progenitors of massive nearby E+A galaxies.
We perform a comprehensive study of the characteristics of the quenching that
truncates the starburst in E+A systems.We find that, for galaxies less massive
than 10^10 MSun, the quenching efficiency decreases as the galaxy mass
increases. However, for galaxies more massive than 10^10 MSun, this trend is
reversed and the quenching efficiency increases with galaxy mass. Noting that
the mass threshold at which this reversal occurs is in excellent agreement with
the mass above which AGN become significantly more abundant in nearby galaxies,
we use simple energetic arguments to show that the bimodal behaviour of the
quenching efficiency is consistent with AGN and supernovae (SN) being the
principal sources of negative feedback above and below M ~ 10^10 MSun
respectively. (abridged)
| astro-ph | we present the first largescale study of ea poststarburst galaxies that incorporates photometry in the ultraviolet uv wavelengths we find that the starburst that creates the ea galaxy typically takes place within the last gyr and creates a high fraction 2060 percent of the stellar mass in the remnant over a short timescale 01 gyrs we find a tight correlation between the luminosity of our ea galaxies and the implied star formation rate sfr during the starburst while lowluminosity eas mz 20 exhibit implied sfrs of less than 50 solar masses per year their luminous counterparts mz 22 shows sfrs greater than 300 and as high as 2000 solar masses per year suggesting that luminous and ultraluminous infrared galaxies in the lowredshift universe could be the progenitors of massive nearby ea galaxies we perform a comprehensive study of the characteristics of the quenching that truncates the starburst in ea systemswe find that for galaxies less massive than 1010 msun the quenching efficiency decreases as the galaxy mass increases however for galaxies more massive than 1010 msun this trend is reversed and the quenching efficiency increases with galaxy mass noting that the mass threshold at which this reversal occurs is in excellent agreement with the mass above which agn become significantly more abundant in nearby galaxies we use simple energetic arguments to show that the bimodal behaviour of the quenching efficiency is consistent with agn and supernovae sn being the principal sources of negative feedback above and below m 1010 msun respectively abridged | [['we', 'present', 'the', 'first', 'largescale', 'study', 'of', 'ea', 'poststarburst', 'galaxies', 'that', 'incorporates', 'photometry', 'in', 'the', 'ultraviolet', 'uv', 'wavelengths', 'we', 'find', 'that', 'the', 'starburst', 'that', 'creates', 'the', 'ea', 'galaxy', 'typically', 'takes', 'place', 'within', 'the', 'last', 'gyr', 'and', 'creates', 'a', 'high', 'fraction', '2060', 'percent', 'of', 'the', 'stellar', 'mass', 'in', 'the', 'remnant', 'over', 'a', 'short', 'timescale', '01', 'gyrs', 'we', 'find', 'a', 'tight', 'correlation', 'between', 'the', 'luminosity', 'of', 'our', 'ea', 'galaxies', 'and', 'the', 'implied', 'star', 'formation', 'rate', 'sfr', 'during', 'the', 'starburst', 'while', 'lowluminosity', 'eas', 'mz', '20', 'exhibit', 'implied', 'sfrs', 'of', 'less', 'than', '50', 'solar', 'masses', 'per', 'year', 'their', 'luminous', 'counterparts', 'mz', '22', 'shows', 'sfrs', 'greater', 'than', '300', 'and', 'as', 'high', 'as', '2000', 'solar', 'masses', 'per', 'year', 'suggesting', 'that', 'luminous', 'and', 'ultraluminous', 'infrared', 'galaxies', 'in', 'the', 'lowredshift', 'universe', 'could', 'be', 'the', 'progenitors', 'of', 'massive', 'nearby', 'ea', 'galaxies', 'we', 'perform', 'a', 'comprehensive', 'study', 'of', 'the', 'characteristics', 'of', 'the', 'quenching', 'that', 'truncates', 'the', 'starburst', 'in', 'ea', 'systemswe', 'find', 'that', 'for', 'galaxies', 'less', 'massive', 'than', '1010', 'msun', 'the', 'quenching', 'efficiency', 'decreases', 'as', 'the', 'galaxy', 'mass', 'increases', 'however', 'for', 'galaxies', 'more', 'massive', 'than', '1010', 'msun', 'this', 'trend', 'is', 'reversed', 'and', 'the', 'quenching', 'efficiency', 'increases', 'with', 'galaxy', 'mass', 'noting', 'that', 'the', 'mass', 'threshold', 'at', 'which', 'this', 'reversal', 'occurs', 'is', 'in', 'excellent', 'agreement', 'with', 'the', 'mass', 'above', 'which', 'agn', 'become', 'significantly', 'more', 'abundant', 'in', 'nearby', 'galaxies', 'we', 'use', 'simple', 'energetic', 'arguments', 'to', 'show', 'that', 'the', 'bimodal', 'behaviour', 'of', 'the', 'quenching', 'efficiency', 'is', 'consistent', 'with', 'agn', 'and', 'supernovae', 'sn', 'being', 'the', 'principal', 'sources', 'of', 'negative', 'feedback', 'above', 'and', 'below', 'm', '1010', 'msun', 'respectively', 'abridged']] | [-0.051358407879773055, 0.1394504560554947, -0.016978116316114743, 0.17221434364355878, -0.047950075602986746, -0.03224588683963428, 0.05600185858710329, 0.4629345161633359, -0.04894181430369379, -0.3650527876313953, 0.005736162434221201, -0.3047585638934314, 0.00023995107594167902, 0.20669795414462333, -0.02456266830478622, -0.11362941002303231, 0.046109258157980906, -0.08509109026774586, -0.09833558177619818, -0.3213308040618098, 0.2745079292790107, 0.1037260277329811, 0.15557961955681324, -0.04413972231042054, 0.07824851982508017, -0.11292458013890104, -0.05343273807790995, -0.0905804203888808, -0.16786383033491253, -0.02163722089365668, 0.22385156984692292, 0.13622846164267569, 0.28019885382465354, -0.3324198385493623, -0.18356839012879406, 0.1113615953123256, 0.23446760216398935, 0.007466866621851093, -0.12369715455064406, -0.19198988019193095, 0.10510531321698283, -0.21774460570997603, -0.14907666718280535, 0.12083939750057955, 0.0514872216803529, -0.0027539350510937407, -0.22423464436978396, 0.2495902018835916, 0.018515162206890565, 0.09053236618638039, -0.09539088459005432, -0.08224949348368682, -0.11190459616981181, 0.028104417299526552, 0.037472028061673636, 0.10615473626078004, 0.24641028434474258, -0.1483696224759259, -0.003923304059306189, 0.41156449891619445, -0.049467359393482124, 0.09776942967991567, 0.24921147033963945, -0.24551512874544612, -0.178489512796486, 0.1497895946714192, 0.14289527146701447, 0.12638033140591154, -0.1505552398961126, -0.05200631055765645, 0.0060230270838863885, 0.256265189792935, 0.019410661012414725, 0.09885008600698104, 0.29504634600709234, 0.1661397365498401, 0.06972171450477271, 0.05313130864265582, -0.16391218773880234, -0.04375917736869601, -0.2069349018173174, -0.09824108045792118, -0.10855589415748707, 0.16546027112746656, -0.19469749381437035, -0.0360267332515731, 0.3315558639828057, 0.1158917325771495, 0.25834426849559394, 0.13190538802513083, 0.29431917393461815, 0.09821661537566725, 0.17063108597427518, 0.1439460020693433, 0.3422789137310622, 0.14531544305472857, 0.07460761272869561, -0.2550582331559059, 0.0429875543738331, -0.026622501202851593] |
707.3571 | Investigation of Dust Wake Field Oscillations | Wakefield oscillations created by the ion wakefield existing below a dust
particle within the plasma sheath generated above a powered lower electrode in
a GEC rf reference cell carry information about the plasma sheath, the dust
particle charge and the speed of the streaming ions. An experimental method to
investigate such wakefield oscillations is discussed.
| physics.plasm-ph | wakefield oscillations created by the ion wakefield existing below a dust particle within the plasma sheath generated above a powered lower electrode in a gec rf reference cell carry information about the plasma sheath the dust particle charge and the speed of the streaming ions an experimental method to investigate such wakefield oscillations is discussed | [['wakefield', 'oscillations', 'created', 'by', 'the', 'ion', 'wakefield', 'existing', 'below', 'a', 'dust', 'particle', 'within', 'the', 'plasma', 'sheath', 'generated', 'above', 'a', 'powered', 'lower', 'electrode', 'in', 'a', 'gec', 'rf', 'reference', 'cell', 'carry', 'information', 'about', 'the', 'plasma', 'sheath', 'the', 'dust', 'particle', 'charge', 'and', 'the', 'speed', 'of', 'the', 'streaming', 'ions', 'an', 'experimental', 'method', 'to', 'investigate', 'such', 'wakefield', 'oscillations', 'is', 'discussed']] | [-0.07931453468786044, 0.29253392367946535, 0.026099989732558077, 0.06926513289905746, 0.022620109739628705, -0.14869173039597544, -0.0012482500889084557, 0.39205315004695546, -0.23267135633663696, -0.2642138976942409, -0.0244304937670346, -0.2666874497282234, 0.08399761910126968, 0.22832113487053324, -0.02516592390073294, 0.04492619083347646, 0.04532442583056929, -0.03337039967829531, 0.0161866404179653, -0.1057141738012433, 0.17288562543690206, 0.22371883683583954, 0.29985123009166936, 0.12458278980444779, 0.13515532255511392, -0.10071524525569243, 0.007597229384224523, 0.0005842298099940473, -0.12319578087084335, 0.04146953633224422, 0.17412685821340843, 0.07175067396284165, 0.2582521355033598, -0.5525110368362882, -0.3246821218932217, -0.020386687107384206, 0.19457482019947334, 0.12943881800906223, -0.17256426821378143, -0.250318001142957, 0.045642073706469756, -0.20967943729324776, -0.14901179438456894, 0.07928003914315593, -0.01871106145395474, 0.09909325316548348, -0.2983965740369802, 0.05670806061984463, 0.07566322862085971, 0.04498250660571185, -0.06392680381170728, -0.0638555483384566, 0.010855475499887359, -0.008209905616769736, 0.0632766381456432, 0.11550653798463331, 0.3762690121815963, -0.08837344234131954, -0.0618137179789218, 0.39593189853158867, -0.045231604876674034, -0.14855633663563905, 0.1351777229627425, -0.2608239425092258, 0.026013371301814914, 0.19976786422458562, 0.14534846517172725, 0.041623289171944966, -0.16556574229828336, -0.015127550548641011, -0.01586907991970127, 0.15365386738961784, 0.1799050024837594, 0.0023664186369966376, 0.2626644638790326, 0.2152693587778644, 0.012871269847859036, 0.12861186766769442, -0.13262022228558304, 0.006740403578045185, -0.29870188967748124, -0.12210461673411456, -0.1697734284807335, -0.05399992543865334, -0.055474290742528284, -0.17948653203519907, 0.4656872705682128, 0.16783823946660215, 0.09513043638488108, -0.1311479941857132, 0.37970003113150597, 0.07076387499374422, 0.013897559749470515, 0.1502554142339663, 0.26271868639794943, 0.16754179216328668, 0.2174125024202195, -0.3047522780993445, 0.03134717766026204, 0.06500739243135534] |
707.3572 | Kuranishi homology and Kuranishi cohomology | A Kuranishi space is a topological space with a Kuranishi structure, defined
by Fukaya and Ono. Kuranishi structures occur naturally on moduli spaces of
J-holomorphic curves in symplectic geometry.
Let Y be an orbifold and R a commutative ring or Q-algebra. We define two
kinds of Kuranishi homology KH_*(Y;R). The chain complex KC_*(Y;R) defining
KH_*(Y;R) is spanned over R by [X,f,G], for X a compact oriented Kuranishi
space with corners, f : X --> Y smooth, and G "gauge-fixing data" which makes
Aut(X,f,G) finite. Our main result is that these are isomorphic to singular
homology. We define Poincare dual Kuranishi cohomology, isomorphic to
compactly-supported cohomology.
We define five kinds of Kuranishi (co)bordism spanned by isomorphism
classes[X,f] for X a compact oriented Kuranishi space without boundary and f :
X --> Y smooth. They are new topological invariants, and we show they are very
large. These theories are powerful new tools in symplectic geometry. Defining
virtual cycles and chains for moduli spaces of J-holomorphic curves is trivial
in Kuranishi (co)homology. There is no need to perturb moduli spaces, and no
problems with transversality. This gives major simplifications in Lagrangian
Floer cohomology.
We define new Gromov-Witten type invariants in Kuranishi bordism, over Z not
Q. We sketch how these may be used to prove the integrality conjecture for
Gopakumar-Vafa invariants.
This paper is surveyed in arXiv:0710.5634.
| math.SG | a kuranishi space is a topological space with a kuranishi structure defined by fukaya and ono kuranishi structures occur naturally on moduli spaces of jholomorphic curves in symplectic geometry let y be an orbifold and r a commutative ring or qalgebra we define two kinds of kuranishi homology kh_yr the chain complex kc_yr defining kh_yr is spanned over r by xfg for x a compact oriented kuranishi space with corners f x y smooth and g gaugefixing data which makes autxfg finite our main result is that these are isomorphic to singular homology we define poincare dual kuranishi cohomology isomorphic to compactlysupported cohomology we define five kinds of kuranishi cobordism spanned by isomorphism classesxf for x a compact oriented kuranishi space without boundary and f x y smooth they are new topological invariants and we show they are very large these theories are powerful new tools in symplectic geometry defining virtual cycles and chains for moduli spaces of jholomorphic curves is trivial in kuranishi cohomology there is no need to perturb moduli spaces and no problems with transversality this gives major simplifications in lagrangian floer cohomology we define new gromovwitten type invariants in kuranishi bordism over z not q we sketch how these may be used to prove the integrality conjecture for gopakumarvafa invariants this paper is surveyed in arxiv07105634 | [['a', 'kuranishi', 'space', 'is', 'a', 'topological', 'space', 'with', 'a', 'kuranishi', 'structure', 'defined', 'by', 'fukaya', 'and', 'ono', 'kuranishi', 'structures', 'occur', 'naturally', 'on', 'moduli', 'spaces', 'of', 'jholomorphic', 'curves', 'in', 'symplectic', 'geometry', 'let', 'y', 'be', 'an', 'orbifold', 'and', 'r', 'a', 'commutative', 'ring', 'or', 'qalgebra', 'we', 'define', 'two', 'kinds', 'of', 'kuranishi', 'homology', 'kh_yr', 'the', 'chain', 'complex', 'kc_yr', 'defining', 'kh_yr', 'is', 'spanned', 'over', 'r', 'by', 'xfg', 'for', 'x', 'a', 'compact', 'oriented', 'kuranishi', 'space', 'with', 'corners', 'f', 'x', 'y', 'smooth', 'and', 'g', 'gaugefixing', 'data', 'which', 'makes', 'autxfg', 'finite', 'our', 'main', 'result', 'is', 'that', 'these', 'are', 'isomorphic', 'to', 'singular', 'homology', 'we', 'define', 'poincare', 'dual', 'kuranishi', 'cohomology', 'isomorphic', 'to', 'compactlysupported', 'cohomology', 'we', 'define', 'five', 'kinds', 'of', 'kuranishi', 'cobordism', 'spanned', 'by', 'isomorphism', 'classesxf', 'for', 'x', 'a', 'compact', 'oriented', 'kuranishi', 'space', 'without', 'boundary', 'and', 'f', 'x', 'y', 'smooth', 'they', 'are', 'new', 'topological', 'invariants', 'and', 'we', 'show', 'they', 'are', 'very', 'large', 'these', 'theories', 'are', 'powerful', 'new', 'tools', 'in', 'symplectic', 'geometry', 'defining', 'virtual', 'cycles', 'and', 'chains', 'for', 'moduli', 'spaces', 'of', 'jholomorphic', 'curves', 'is', 'trivial', 'in', 'kuranishi', 'cohomology', 'there', 'is', 'no', 'need', 'to', 'perturb', 'moduli', 'spaces', 'and', 'no', 'problems', 'with', 'transversality', 'this', 'gives', 'major', 'simplifications', 'in', 'lagrangian', 'floer', 'cohomology', 'we', 'define', 'new', 'gromovwitten', 'type', 'invariants', 'in', 'kuranishi', 'bordism', 'over', 'z', 'not', 'q', 'we', 'sketch', 'how', 'these', 'may', 'be', 'used', 'to', 'prove', 'the', 'integrality', 'conjecture', 'for', 'gopakumarvafa', 'invariants', 'this', 'paper', 'is', 'surveyed', 'in', 'arxiv07105634']] | [-0.2574874178066643, 0.08764446545743947, -0.1293868832850691, 0.1293513854988204, -0.12035852364971544, -0.1689337848737422, -0.05328461969717561, 0.37404460156513203, -0.35237086273695306, -0.2245606425071687, 0.07389220005198796, -0.19577786213765783, -0.17317438850080147, 0.15851298218735288, -0.248479343125062, -0.021594070583146444, 0.043148577975376544, -0.007483060400570846, -0.14329703251132742, -0.3126516417035385, 0.479562218210453, -0.11497312535195509, 0.162729551884156, 0.0343880496155988, 0.07888187624619739, -0.002776357602905827, -0.015319374248738986, -0.00025707049698448154, -0.20258414612494058, 0.16575846519360007, 0.42054775501256464, 0.0432841071041939, 0.11530310355549402, -0.38599875097214764, -0.13160000399781252, 0.19637655764893647, 0.10263767754831524, -0.04346769023093792, 0.03749933850755311, -0.3145363151345885, 0.1228740770667274, -0.12115911837167072, -0.14170150984621918, -0.16673865201974641, 0.07002532294373615, -0.009971248919437467, -0.14871593394141033, -0.10650126500749374, 0.0381006866917704, 0.14885649530441258, -0.06676847848144395, -0.0633529859457027, -0.15063857377821546, 0.04154053468934122, -0.027048304890437674, 0.16906682431430523, 0.12430040427393073, -0.04551109281170217, -0.11727101405806563, 0.33994750746340424, -0.07156645462425702, -0.26843431055507, 0.11156391796679667, -0.13036860935648698, -0.2503487664249001, 0.16829763140790252, 0.030546179795810195, 0.1910162616749639, 0.006678385444198891, 0.2572387233831924, -0.08436021609264167, 0.06330022099859046, 0.10540177816249154, -0.017510577009050867, 0.1628367822138696, 0.07068135004589783, 0.11681398743975377, 0.09970651561377088, 0.004279476937544705, -0.06726980531891093, -0.3805863774571292, -0.24141877385166785, -0.09549508392983289, 0.20732963489832332, -0.12213046953285003, -0.18588314910151962, 0.36800508588742187, 0.012654041104897092, 0.2017689980253905, 0.10697286752865356, 0.21273739820053042, -0.043600637159047266, 0.049251561098369874, 0.05808164805165251, 0.10677559550472156, 0.22313022433620602, -0.008335307646861852, -0.017625482694711536, -0.049062149659558026, 0.28241937999673944] |
707.3573 | Particulate Contamination Within Fusion Devices and Complex (Dusty)
Plasmas | Over the past decade, dust particulate contamination has increasingly become
an area of concern within the fusion research community. In a burning plasma
machine design like the International Thermonuclear Experimental Reactor
(ITER), dust contamination presents problems for diagnostic integration and may
contribute to tritium safety issues. Additionally due to ITER design, such dust
contamination problems are projected to become of even greater concern due to
dust/wall interactions and possible instabilities created within the plasma by
such particulates. Since the dynamics of such dust can in general be explained
employing a combination of the ion drag, Coulomb force, and ion pre-sheath
drifts, recent research in complex (dusty) plasma physics often offers unique
insights for this research area. This paper will discuss the possibility of how
experimental observations of the dust and plasma parameters within a GEC rf
Reference Cell might be employed to diagnose conditions within fusion reactors,
hopefully providing insight into possible mechanisms for dust detection and
removal.
| physics.plasm-ph | over the past decade dust particulate contamination has increasingly become an area of concern within the fusion research community in a burning plasma machine design like the international thermonuclear experimental reactor iter dust contamination presents problems for diagnostic integration and may contribute to tritium safety issues additionally due to iter design such dust contamination problems are projected to become of even greater concern due to dustwall interactions and possible instabilities created within the plasma by such particulates since the dynamics of such dust can in general be explained employing a combination of the ion drag coulomb force and ion presheath drifts recent research in complex dusty plasma physics often offers unique insights for this research area this paper will discuss the possibility of how experimental observations of the dust and plasma parameters within a gec rf reference cell might be employed to diagnose conditions within fusion reactors hopefully providing insight into possible mechanisms for dust detection and removal | [['over', 'the', 'past', 'decade', 'dust', 'particulate', 'contamination', 'has', 'increasingly', 'become', 'an', 'area', 'of', 'concern', 'within', 'the', 'fusion', 'research', 'community', 'in', 'a', 'burning', 'plasma', 'machine', 'design', 'like', 'the', 'international', 'thermonuclear', 'experimental', 'reactor', 'iter', 'dust', 'contamination', 'presents', 'problems', 'for', 'diagnostic', 'integration', 'and', 'may', 'contribute', 'to', 'tritium', 'safety', 'issues', 'additionally', 'due', 'to', 'iter', 'design', 'such', 'dust', 'contamination', 'problems', 'are', 'projected', 'to', 'become', 'of', 'even', 'greater', 'concern', 'due', 'to', 'dustwall', 'interactions', 'and', 'possible', 'instabilities', 'created', 'within', 'the', 'plasma', 'by', 'such', 'particulates', 'since', 'the', 'dynamics', 'of', 'such', 'dust', 'can', 'in', 'general', 'be', 'explained', 'employing', 'a', 'combination', 'of', 'the', 'ion', 'drag', 'coulomb', 'force', 'and', 'ion', 'presheath', 'drifts', 'recent', 'research', 'in', 'complex', 'dusty', 'plasma', 'physics', 'often', 'offers', 'unique', 'insights', 'for', 'this', 'research', 'area', 'this', 'paper', 'will', 'discuss', 'the', 'possibility', 'of', 'how', 'experimental', 'observations', 'of', 'the', 'dust', 'and', 'plasma', 'parameters', 'within', 'a', 'gec', 'rf', 'reference', 'cell', 'might', 'be', 'employed', 'to', 'diagnose', 'conditions', 'within', 'fusion', 'reactors', 'hopefully', 'providing', 'insight', 'into', 'possible', 'mechanisms', 'for', 'dust', 'detection', 'and', 'removal']] | [-0.03681079831877486, 0.16444307766570398, -0.051294037187249536, 0.06175161359659663, -0.05474191970802891, -0.13018358150900455, 0.009217207160612247, 0.3686834256443533, -0.2481008783771781, -0.296901079784533, 0.110600973153561, -0.2602526744898812, -0.059090802754471254, 0.227220662237756, -0.08715435956859854, 0.07034442455590863, 0.07771929917088859, -0.07605727843993645, 0.0008516445174623447, -0.21481388911403193, 0.2550839972118758, 0.17029064738007774, 0.26480518886671184, 0.1568955240272887, 0.0264427315586122, -0.06819414978574036, -0.08719972129258666, 0.008368192506052412, -0.10584904935995448, 0.09826364364641108, 0.3171102894235782, 0.14028949046709166, 0.30007043667137623, -0.49301652370593924, -0.31668277670908124, 0.08140747958592548, 0.17457253613159252, 0.09650145845701265, -0.10233968193197895, -0.22148790009094366, 0.008799371470483673, -0.21773795618462097, -0.1793290909267013, -0.02344273099272399, 0.02727189614692596, 0.014883309054028267, -0.2969027930146949, 0.032770260655362704, 0.01767875116532016, 0.08270253941630291, -0.07221581037957103, -0.14350276720891025, 0.030779893432927738, 0.09196151155462358, 0.07169660746125849, 0.03417723933027191, 0.2676628153877938, -0.1502143319037737, -0.03996259525750473, 0.43199699536962494, 0.009087569234524943, -0.11676418366263602, 0.21861739771049113, -0.12609653248804603, -0.1456474291003505, 0.15263709794599445, 0.22558243331279915, 0.0211703225474947, -0.1848675525409116, -0.009478132485539598, 0.034763750032919226, 0.12438258636620668, 0.10627502039264722, 0.03926328525642692, 0.32967129558514635, 0.2396127261031585, 0.0399101456467086, 0.1071585436430567, -0.13578821685438872, -0.062020040279407065, -0.2491819764766249, -0.10888235311907758, -0.06105211473242113, 0.04408114434036005, -0.012703301621861252, -0.14572129227743028, 0.353912936259027, 0.16715651813962729, 0.10402548376316573, -0.09432986223696475, 0.33062773394238226, 0.006536520352797689, 0.08651638444539776, 0.05848610280734149, 0.292478484415989, 0.13601151045714358, 0.13162978671144124, -0.2197275031832563, 0.0932176266114708, 0.005215535853888578] |
707.3574 | L'orthoglide : une machine-outil rapide d'architecture parall\`ele
isotrope | This article presents the Orthoglide project. The purpose of this project is
the realization of a prototype of machine tool to three degrees of translation.
The characteristic of this machine is a parallel kinematic architecture
optimized to obtain a compact workspace with homogeneous performance. For that,
the principal criterion of design which was used is the isotropy.
| cs.RO | this article presents the orthoglide project the purpose of this project is the realization of a prototype of machine tool to three degrees of translation the characteristic of this machine is a parallel kinematic architecture optimized to obtain a compact workspace with homogeneous performance for that the principal criterion of design which was used is the isotropy | [['this', 'article', 'presents', 'the', 'orthoglide', 'project', 'the', 'purpose', 'of', 'this', 'project', 'is', 'the', 'realization', 'of', 'a', 'prototype', 'of', 'machine', 'tool', 'to', 'three', 'degrees', 'of', 'translation', 'the', 'characteristic', 'of', 'this', 'machine', 'is', 'a', 'parallel', 'kinematic', 'architecture', 'optimized', 'to', 'obtain', 'a', 'compact', 'workspace', 'with', 'homogeneous', 'performance', 'for', 'that', 'the', 'principal', 'criterion', 'of', 'design', 'which', 'was', 'used', 'is', 'the', 'isotropy']] | [-0.1609317653796129, 0.018969784343713207, -0.14358954654859477, -0.032583809637448245, -0.13369287655018924, -0.11435985521887217, -0.04682738317601513, 0.373043091738956, -0.25444836087786316, -0.2919679766422824, 0.10460784816205616, -0.16079573778500944, -0.12700868639972454, 0.21655944731543986, -0.0593335001092208, 0.08831821123889663, 0.07342635868770774, 0.0532824657939113, -0.06026807135346819, -0.2549420753657295, 0.3298111616780883, 0.09256866896165568, 0.34823672296969516, -0.02893984033481071, 0.1395568246788523, -0.030107102487563042, -0.02093929593173558, -0.02127963404187508, -0.1207418303428424, 0.22218562419967433, 0.2839082139625884, 0.1865292229248505, 0.27095676085241793, -0.29702705166122895, -0.13402600428743058, 0.08335298115158812, 0.09927119697002988, 0.07424776982148423, -0.004724297443764252, -0.24392278245731927, 0.1299770117753692, -0.1660261313316592, -0.1832730649365929, -0.05814954476725114, -0.012665090183809138, -0.011652950360848192, -0.24746329624924743, -0.03659479086401693, 0.1173044968755883, 0.13231612655350514, -0.029145818056636734, -0.08067339778828778, 0.05775663472319904, 0.12195917315323625, 0.008689447326520295, 0.08845313542048659, 0.10601115604993283, -0.09322255727704287, -0.12078961319077694, 0.43089661145942254, -0.01170246223020449, -0.21630905134595213, 0.18289072368816847, -0.04954986447027247, -0.1604569139236813, 0.0877474745768204, 0.24230078215661802, 0.09579847220396787, -0.22551614733968386, 0.07061259354170608, -0.03534227746881937, 0.1613756561684504, -0.013930810701200053, -0.042423829607861605, 0.17826910608186664, 0.29650972136541415, 0.04906924706148474, 0.2215604861430301, -0.11738982034455005, -0.04778166295012884, -0.3504814314084095, -0.24959684952505326, -0.16443750180565475, 0.02150349447650737, -0.02849259613114491, -0.17920603165239618, 0.45145843851200324, 0.1340214693369936, 0.1326759286355554, 0.06008711328378699, 0.34657930491263406, 0.00826104792864307, 0.09133973054326418, 0.053707487529895286, 0.2160188658979901, 0.11377787727274392, 0.1152869191412863, -0.1999477680462102, 0.035025849229688835, 0.04725369826580087] |
707.3575 | An exploratory study of Google Scholar | The paper discusses and analyzes the scientific search service Google Scholar
(GS). The focus is on an exploratory study which investigates the coverage of
scientific serials in GS. The study shows deficiencies in the coverage and
up-to-dateness of the GS index. Furthermore, the study points up which Web
servers are the most important data providers for this search service and which
information sources are highly represented. We can show that there is a
relatively large gap in Google Scholars coverage of German literature as well
as weaknesses in the accessibility of Open Access content.
Keywords: Search engines, Digital libraries, Worldwide Web, Serials,
Electronic journals
| cs.DL cs.IR | the paper discusses and analyzes the scientific search service google scholar gs the focus is on an exploratory study which investigates the coverage of scientific serials in gs the study shows deficiencies in the coverage and uptodateness of the gs index furthermore the study points up which web servers are the most important data providers for this search service and which information sources are highly represented we can show that there is a relatively large gap in google scholars coverage of german literature as well as weaknesses in the accessibility of open access content keywords search engines digital libraries worldwide web serials electronic journals | [['the', 'paper', 'discusses', 'and', 'analyzes', 'the', 'scientific', 'search', 'service', 'google', 'scholar', 'gs', 'the', 'focus', 'is', 'on', 'an', 'exploratory', 'study', 'which', 'investigates', 'the', 'coverage', 'of', 'scientific', 'serials', 'in', 'gs', 'the', 'study', 'shows', 'deficiencies', 'in', 'the', 'coverage', 'and', 'uptodateness', 'of', 'the', 'gs', 'index', 'furthermore', 'the', 'study', 'points', 'up', 'which', 'web', 'servers', 'are', 'the', 'most', 'important', 'data', 'providers', 'for', 'this', 'search', 'service', 'and', 'which', 'information', 'sources', 'are', 'highly', 'represented', 'we', 'can', 'show', 'that', 'there', 'is', 'a', 'relatively', 'large', 'gap', 'in', 'google', 'scholars', 'coverage', 'of', 'german', 'literature', 'as', 'well', 'as', 'weaknesses', 'in', 'the', 'accessibility', 'of', 'open', 'access', 'content', 'keywords', 'search', 'engines', 'digital', 'libraries', 'worldwide', 'web', 'serials', 'electronic', 'journals']] | [-0.13858244428579033, 0.012300168354508619, 0.0001276826593451775, 0.11051892242595876, -0.07788387367663045, -0.07447044870003502, 0.12311024749382901, 0.39605682217874205, -0.23839706718550027, -0.37494821831261593, 0.12532778506507525, -0.3769760432008367, -0.11205358602120004, 0.19417116437062548, -0.07826387729997245, -0.023344180585879188, 0.07605158546861136, 0.038593964552721724, -0.014897691258318866, -0.26318232795277324, 0.29310776918338466, 0.094999181249967, 0.3687771002117258, 0.1073832982354081, -0.04896420491030977, -0.014415008427861791, -0.1523169950188066, -0.022338392584620472, -0.13164133776703799, 0.15520263590308156, 0.35693475837783456, 0.24088254783642837, 0.3045977642759681, -0.3116185756830069, -0.13889261167675543, 0.06653888283583981, 0.14653163102383798, 0.031767712468326166, -0.09079673349557336, -0.3157595196703019, 0.07865089696805136, -0.23024686332792044, -0.03827933652792126, -0.05782114263050831, 0.03731487363200778, 0.09788486884253171, -0.17780689616651776, -0.04220908712998677, -0.014402021061799202, 0.1230714749186658, -0.010652452333418366, -0.12884327853456712, -0.018371418631152034, 0.2062047651136079, 0.09149129951569754, 0.01727254100506588, 0.1443224739140043, -0.17838569521140576, -0.1344712818334721, 0.41979453100178105, -0.020680449497796453, -0.08210042669312455, 0.1631556136551528, -0.07436235931415397, -0.19659695405369768, 0.05807838635519147, 0.23191660941721728, 0.06426611807770453, -0.24131989692978095, 0.10892317420635103, -0.03279430004588973, 0.21197841196800044, 0.07341964562566808, 0.030409426253754646, 0.21459698540946612, 0.2069668930847771, 0.08027706734495811, 0.16066745311568062, -0.046491347836518586, -0.10318360376606087, -0.18864070241733527, -0.18162004507254237, -0.1902628314005247, 0.01870594460230607, -0.059445372656857495, -0.21930556987410035, 0.41658209522183126, 0.17966444252614075, 0.08224917130204491, -0.025033556852856867, 0.2990291828397088, 0.015021063631418375, 0.06332331716727752, 0.14851051337945348, 0.1600082530729616, -0.027805544561348282, 0.2302469478141015, -0.09398485868587159, 0.09429250494129239, -0.004896507181281497] |
707.3576 | Relativistic multi-reference Fock-space coupled-cluster calculation of
the forbidden $6s^2^1 S_0 \longrightarrow 6s5d^3 D_1$ magnetic-dipole
transition in ytterbium | We report the forbidden $6s^{2} ^{1}S_{0}\longrightarrow6s5d ^{3}D_{1}$
magnetic-dipole transition amplitude computed using multi-reference Fock-space
coupled-cluster theory. Our computed transition matrix element
($1.34\times10^{-4}\mu_{B}$) is in excellent agreement with the experimental
value ($1.33\times10^{-4}$ $\mu_{B}$). This value in combination with other
known quantities will be helpful to determine the parity non-conserving
amplitude for the $6s^{2} ^{1}S_{0}\longrightarrow6s5d ^{3}D_{1}$ transition in
atomic Yb. To our knowledge our calculation is the most accurate to date and
can be very important in the search of physics beyond the standard model. We
further report the $6s6p ^{3}P_{0}\longrightarrow6s6p ^{1}P_{1}$ and $6s5d
^{3}D_{1}\longrightarrow6s6p ^{3}P_{0}$ transition matrix elements which are
also in good agreement with the earlier theoretical estimates.
| physics.atom-ph physics.chem-ph | we report the forbidden 6s2 1s_0longrightarrow6s5d 3d_1 magneticdipole transition amplitude computed using multireference fockspace coupledcluster theory our computed transition matrix element 134times104mu_b is in excellent agreement with the experimental value 133times104 mu_b this value in combination with other known quantities will be helpful to determine the parity nonconserving amplitude for the 6s2 1s_0longrightarrow6s5d 3d_1 transition in atomic yb to our knowledge our calculation is the most accurate to date and can be very important in the search of physics beyond the standard model we further report the 6s6p 3p_0longrightarrow6s6p 1p_1 and 6s5d 3d_1longrightarrow6s6p 3p_0 transition matrix elements which are also in good agreement with the earlier theoretical estimates | [['we', 'report', 'the', 'forbidden', '6s2', '1s_0longrightarrow6s5d', '3d_1', 'magneticdipole', 'transition', 'amplitude', 'computed', 'using', 'multireference', 'fockspace', 'coupledcluster', 'theory', 'our', 'computed', 'transition', 'matrix', 'element', '134times104mu_b', 'is', 'in', 'excellent', 'agreement', 'with', 'the', 'experimental', 'value', '133times104', 'mu_b', 'this', 'value', 'in', 'combination', 'with', 'other', 'known', 'quantities', 'will', 'be', 'helpful', 'to', 'determine', 'the', 'parity', 'nonconserving', 'amplitude', 'for', 'the', '6s2', '1s_0longrightarrow6s5d', '3d_1', 'transition', 'in', 'atomic', 'yb', 'to', 'our', 'knowledge', 'our', 'calculation', 'is', 'the', 'most', 'accurate', 'to', 'date', 'and', 'can', 'be', 'very', 'important', 'in', 'the', 'search', 'of', 'physics', 'beyond', 'the', 'standard', 'model', 'we', 'further', 'report', 'the', '6s6p', '3p_0longrightarrow6s6p', '1p_1', 'and', '6s5d', '3d_1longrightarrow6s6p', '3p_0', 'transition', 'matrix', 'elements', 'which', 'are', 'also', 'in', 'good', 'agreement', 'with', 'the', 'earlier', 'theoretical', 'estimates']] | [-0.04856647179957351, 0.17926361487594014, -0.014405304084385872, 0.06311368087977719, -0.007921099685607296, -0.1367809330752375, 0.08692815853625208, 0.4037036029987183, -0.17810354773617149, -0.27592299426631894, 0.008464550698751254, -0.31920376927683164, -0.08786596625121128, 0.1090508595647692, 0.08067122521791972, 0.06772168508991051, 0.06959844838060877, 0.04407717386151061, -0.1260745409081745, -0.12758390744235001, 0.23764138637909804, 0.07290305259783625, 0.2508312696317101, 0.08151873237654275, -0.03487190301301798, -0.028313127807432822, 0.05926306544821344, -0.07818982095055867, -0.13890460671802216, 0.1174840445073285, 0.31309114523259374, 0.03659984788985229, 0.13060045320832847, -0.40416602733745877, -0.12985841698337383, 0.07199943045670093, 0.13892755422321165, 0.20023318683824448, -0.05783762807464775, -0.3390110771002832, 0.04074709302764021, -0.1781386095601335, -0.12466971297958392, -0.15154541542242264, -0.0023060661612772475, -0.02139971355962403, -0.3425568487385617, 0.10174410145326891, -0.05665251195394233, 0.03503311466535225, -0.05481308212220742, -0.24828721850416532, 0.02604440572059841, 0.09416044676475518, -0.006005508311015244, 0.11282499996242205, 0.10908566073368431, -0.06059353852270208, -0.11115790062638767, 0.42283414892267945, -0.1190261273443991, -0.09954121275622324, 0.12193535055563438, -0.19166612668035954, -0.15376197091559424, 0.1553430287258736, 0.0716466736390858, 0.10756347958893314, -0.10724665091245197, 0.07664814064913776, -0.005349087839325269, 0.2368650495248171, 0.03553861605149566, 0.060389289498761725, 0.15467841528794346, 0.13795504425013183, -0.06334099980692069, 0.0677190021247667, -0.06093882864076352, -0.13838742639613794, -0.30197113110482987, -0.10212772271202708, -0.17753085097316287, 0.0043883575400447145, -0.061825212396797724, -0.1324688167853096, 0.34644329631427195, 0.18853573093428186, 0.16588007876256883, -0.015283047282091324, 0.27195521184772836, 0.13644787769047909, 0.018716782879303482, 0.005425749474442473, 0.3606036618151063, 0.20124503378482425, 0.07023646184254675, -0.31386480434779446, 0.07986152273894963, 0.09277460391761042] |
707.3577 | Development of physically based plastic flow rules for body-centered
cubic metals with temperature and strain rate dependencies | In this Thesis we first show how the shape of the Peierls barrier and its
dependence on the applied loading can be extracted from the data obtained in
atomistic studies at 0 K. We consider the Peierls barrier as a two-dimensional
periodic function of the position of the intersection of the dislocation line
with the perpendicular {111} plane, with adjustable terms dependent on the
shear stresses parallel and perpendicular to the slip direction. The functional
forms of these terms are based on the effective yield criterion recently
developed on the basis of atomistic modeling of the glide of screw dislocations
at 0 K. The minimum energy path between two potential minima, and thus the
corresponding activation barrier, is obtained using the Nudged Elastic Band
method. The constructed Peierls barrier reproduces correctly both the
well-known twinning-antitwinning asymmetry observed for pure shear parallel to
the slip direction and the effect of shear stresses perpendicular to the slip
direction. This advancement introduces for the first time the effect of both
shear stresses parallel and perpendicular to the slip direction into the model
of thermally activated dislocation motion. Based on this model we formulate a
general yield criterion that includes not only the full stress tensor but also
effects of temperature and strain rate. This approach forms a basis for
multislip yield criteria and flow relations for continuum analyses in both
single and polycrystals the results of which can be compared with experimental
observations.
| cond-mat.mtrl-sci cond-mat.stat-mech | in this thesis we first show how the shape of the peierls barrier and its dependence on the applied loading can be extracted from the data obtained in atomistic studies at 0 k we consider the peierls barrier as a twodimensional periodic function of the position of the intersection of the dislocation line with the perpendicular 111 plane with adjustable terms dependent on the shear stresses parallel and perpendicular to the slip direction the functional forms of these terms are based on the effective yield criterion recently developed on the basis of atomistic modeling of the glide of screw dislocations at 0 k the minimum energy path between two potential minima and thus the corresponding activation barrier is obtained using the nudged elastic band method the constructed peierls barrier reproduces correctly both the wellknown twinningantitwinning asymmetry observed for pure shear parallel to the slip direction and the effect of shear stresses perpendicular to the slip direction this advancement introduces for the first time the effect of both shear stresses parallel and perpendicular to the slip direction into the model of thermally activated dislocation motion based on this model we formulate a general yield criterion that includes not only the full stress tensor but also effects of temperature and strain rate this approach forms a basis for multislip yield criteria and flow relations for continuum analyses in both single and polycrystals the results of which can be compared with experimental observations | [['in', 'this', 'thesis', 'we', 'first', 'show', 'how', 'the', 'shape', 'of', 'the', 'peierls', 'barrier', 'and', 'its', 'dependence', 'on', 'the', 'applied', 'loading', 'can', 'be', 'extracted', 'from', 'the', 'data', 'obtained', 'in', 'atomistic', 'studies', 'at', '0', 'k', 'we', 'consider', 'the', 'peierls', 'barrier', 'as', 'a', 'twodimensional', 'periodic', 'function', 'of', 'the', 'position', 'of', 'the', 'intersection', 'of', 'the', 'dislocation', 'line', 'with', 'the', 'perpendicular', '111', 'plane', 'with', 'adjustable', 'terms', 'dependent', 'on', 'the', 'shear', 'stresses', 'parallel', 'and', 'perpendicular', 'to', 'the', 'slip', 'direction', 'the', 'functional', 'forms', 'of', 'these', 'terms', 'are', 'based', 'on', 'the', 'effective', 'yield', 'criterion', 'recently', 'developed', 'on', 'the', 'basis', 'of', 'atomistic', 'modeling', 'of', 'the', 'glide', 'of', 'screw', 'dislocations', 'at', '0', 'k', 'the', 'minimum', 'energy', 'path', 'between', 'two', 'potential', 'minima', 'and', 'thus', 'the', 'corresponding', 'activation', 'barrier', 'is', 'obtained', 'using', 'the', 'nudged', 'elastic', 'band', 'method', 'the', 'constructed', 'peierls', 'barrier', 'reproduces', 'correctly', 'both', 'the', 'wellknown', 'twinningantitwinning', 'asymmetry', 'observed', 'for', 'pure', 'shear', 'parallel', 'to', 'the', 'slip', 'direction', 'and', 'the', 'effect', 'of', 'shear', 'stresses', 'perpendicular', 'to', 'the', 'slip', 'direction', 'this', 'advancement', 'introduces', 'for', 'the', 'first', 'time', 'the', 'effect', 'of', 'both', 'shear', 'stresses', 'parallel', 'and', 'perpendicular', 'to', 'the', 'slip', 'direction', 'into', 'the', 'model', 'of', 'thermally', 'activated', 'dislocation', 'motion', 'based', 'on', 'this', 'model', 'we', 'formulate', 'a', 'general', 'yield', 'criterion', 'that', 'includes', 'not', 'only', 'the', 'full', 'stress', 'tensor', 'but', 'also', 'effects', 'of', 'temperature', 'and', 'strain', 'rate', 'this', 'approach', 'forms', 'a', 'basis', 'for', 'multislip', 'yield', 'criteria', 'and', 'flow', 'relations', 'for', 'continuum', 'analyses', 'in', 'both', 'single', 'and', 'polycrystals', 'the', 'results', 'of', 'which', 'can', 'be', 'compared', 'with', 'experimental', 'observations']] | [-0.13738407068594824, 0.11911533483604823, -0.0951186465312882, -0.008260264200604677, -0.06011423260012331, -0.08735642120009288, 0.03520521972671607, 0.38371060046968825, -0.3052207932652285, -0.27858357020498564, 0.044715566371936195, -0.22565973969564462, -0.1325428733951412, 0.18115650181280216, 0.03986975743900985, 0.04860380358707819, 0.03065933447020749, 0.0017804486715855697, -0.06626516027608886, -0.21413762313798845, 0.26946827019176756, 0.05509683961960642, 0.35764362713186226, 0.0956213407315469, 0.07728923693690982, 0.03607894125355718, 0.017107721922608714, 0.07012617299915291, -0.20169666221593918, 0.09859724016084025, 0.19881189329413854, -0.02921523398060041, 0.19422452262951992, -0.4753728086206441, -0.20292690181328604, 0.03844598290355255, 0.10978172131387207, 0.135803150786766, -0.005486104851297568, -0.23769310059724374, 0.07237126571999397, -0.10250090860645286, -0.10755153790184219, -0.02944837580434978, 0.013486578905334076, 0.046307901440498726, -0.2380137459471977, 0.15950793836600496, 0.0573828949748228, 0.07864112255435127, -0.14413696431001882, -0.11571174957740975, -0.0980254470516229, 0.06770154719391333, 0.08099197034753161, 0.05957693516393192, 0.17035474378305177, -0.09568224582762923, -0.09634631018173725, 0.40233049643381186, -0.04374071358761285, -0.20174652014587385, 0.13636684324980403, -0.11002832716039848, -0.07262813992565498, 0.16362404063208183, 0.16748427568236365, 0.09127883312175981, -0.1314591519709211, 0.03964875939127523, 0.023938869306099755, 0.10643290401009532, 0.07458730694488622, -0.06002096135901714, 0.20581908586406522, 0.13669759839152296, 0.05341287467966443, 0.14605334011333374, -0.16622720386076253, -0.07628326967921263, -0.33253140910674117, -0.16918539763137233, -0.18505206013748346, 0.0018055700299858775, -0.10360209792997921, -0.1838839442037473, 0.38518949641535677, 0.13169584896725914, 0.19031946471877745, 0.05486406565129679, 0.26243279670597985, 0.11837114929173063, 0.08546147901541493, 0.05100889242021367, 0.26544648424120776, 0.1614462269935757, 0.1060616105629985, -0.2559822570699907, 0.09204745826524838, 0.045238229096867144] |
707.3578 | The history of star-forming galaxies in the Sloan Digital Sky Survey | We study the evolution of 82302 star-forming (SF) galaxies from the SDSS. Our
main goals are to explore new ways of handling star formation histories (SFH)
obtained with our publicly available spectral synthesis code STARLIGHT, and
apply them to investigate how SFHs vary as a function of nebular metallicity
(Zneb). Our main results are: (1) A conventional correlation analysis shows how
global properties such as luminosity, mass, dust content, mean stellar
metallicity and mean stellar age relate to Zneb. (2) We present a simple
formalism which compresses the results of the synthesis into time-dependent
star formation rates (SFR) and mass assembly histories. (3) The current SFR
derived from the population synthesis and that from H-alpha are shown to agree
within a factor of two. Thus we now have a way to estimate SFR in AGN hosts,
where the H-alpha method cannot be applied. (4) Fully time-dependent SFHs are
derived for all galaxies and averaged over six Zneb bins spanning the entire SF
wing in the [OIII]/H-beta X [NII]/H-alpha diagram. (5) We find that SFHs vary
systematically along the SF sequence, such that low-Zneb systems evolve slower
and are currently forming stars at a higher relative rate. (6) At any given
time, the distribution of specific SFRs for galaxies within a Zneb-bin is broad
and roughly log-normal. (7) The same results are found grouping galaxies in
stellar mass (M*) or surface mass density (S*) bins. (8) The overall pattern of
SFHs as a function of Zneb, M* or S* is robust against changes in selection
criteria, choice of evolutionary synthesis models for the spectral fits, and
differential extinction effects. (Abridged)
| astro-ph | we study the evolution of 82302 starforming sf galaxies from the sdss our main goals are to explore new ways of handling star formation histories sfh obtained with our publicly available spectral synthesis code starlight and apply them to investigate how sfhs vary as a function of nebular metallicity zneb our main results are 1 a conventional correlation analysis shows how global properties such as luminosity mass dust content mean stellar metallicity and mean stellar age relate to zneb 2 we present a simple formalism which compresses the results of the synthesis into timedependent star formation rates sfr and mass assembly histories 3 the current sfr derived from the population synthesis and that from halpha are shown to agree within a factor of two thus we now have a way to estimate sfr in agn hosts where the halpha method cannot be applied 4 fully timedependent sfhs are derived for all galaxies and averaged over six zneb bins spanning the entire sf wing in the oiiihbeta x niihalpha diagram 5 we find that sfhs vary systematically along the sf sequence such that lowzneb systems evolve slower and are currently forming stars at a higher relative rate 6 at any given time the distribution of specific sfrs for galaxies within a znebbin is broad and roughly lognormal 7 the same results are found grouping galaxies in stellar mass m or surface mass density s bins 8 the overall pattern of sfhs as a function of zneb m or s is robust against changes in selection criteria choice of evolutionary synthesis models for the spectral fits and differential extinction effects abridged | [['we', 'study', 'the', 'evolution', 'of', '82302', 'starforming', 'sf', 'galaxies', 'from', 'the', 'sdss', 'our', 'main', 'goals', 'are', 'to', 'explore', 'new', 'ways', 'of', 'handling', 'star', 'formation', 'histories', 'sfh', 'obtained', 'with', 'our', 'publicly', 'available', 'spectral', 'synthesis', 'code', 'starlight', 'and', 'apply', 'them', 'to', 'investigate', 'how', 'sfhs', 'vary', 'as', 'a', 'function', 'of', 'nebular', 'metallicity', 'zneb', 'our', 'main', 'results', 'are', '1', 'a', 'conventional', 'correlation', 'analysis', 'shows', 'how', 'global', 'properties', 'such', 'as', 'luminosity', 'mass', 'dust', 'content', 'mean', 'stellar', 'metallicity', 'and', 'mean', 'stellar', 'age', 'relate', 'to', 'zneb', '2', 'we', 'present', 'a', 'simple', 'formalism', 'which', 'compresses', 'the', 'results', 'of', 'the', 'synthesis', 'into', 'timedependent', 'star', 'formation', 'rates', 'sfr', 'and', 'mass', 'assembly', 'histories', '3', 'the', 'current', 'sfr', 'derived', 'from', 'the', 'population', 'synthesis', 'and', 'that', 'from', 'halpha', 'are', 'shown', 'to', 'agree', 'within', 'a', 'factor', 'of', 'two', 'thus', 'we', 'now', 'have', 'a', 'way', 'to', 'estimate', 'sfr', 'in', 'agn', 'hosts', 'where', 'the', 'halpha', 'method', 'can', 'not', 'be', 'applied', '4', 'fully', 'timedependent', 'sfhs', 'are', 'derived', 'for', 'all', 'galaxies', 'and', 'averaged', 'over', 'six', 'zneb', 'bins', 'spanning', 'the', 'entire', 'sf', 'wing', 'in', 'the', 'oiiihbeta', 'x', 'niihalpha', 'diagram', '5', 'we', 'find', 'that', 'sfhs', 'vary', 'systematically', 'along', 'the', 'sf', 'sequence', 'such', 'that', 'lowzneb', 'systems', 'evolve', 'slower', 'and', 'are', 'currently', 'forming', 'stars', 'at', 'a', 'higher', 'relative', 'rate', '6', 'at', 'any', 'given', 'time', 'the', 'distribution', 'of', 'specific', 'sfrs', 'for', 'galaxies', 'within', 'a', 'znebbin', 'is', 'broad', 'and', 'roughly', 'lognormal', '7', 'the', 'same', 'results', 'are', 'found', 'grouping', 'galaxies', 'in', 'stellar', 'mass', 'm', 'or', 'surface', 'mass', 'density', 's', 'bins', '8', 'the', 'overall', 'pattern', 'of', 'sfhs', 'as', 'a', 'function', 'of', 'zneb', 'm', 'or', 's', 'is', 'robust', 'against', 'changes', 'in', 'selection', 'criteria', 'choice', 'of', 'evolutionary', 'synthesis', 'models', 'for', 'the', 'spectral', 'fits', 'and', 'differential', 'extinction', 'effects', 'abridged']] | [-0.022981762695509927, 0.0783709749031798, -0.07768491199955149, 0.13997018933976382, -0.04006577655978236, -0.06281751037264864, 0.03681125970817196, 0.48859855932382384, -0.16351778248206394, -0.3472340203584468, 0.03911846809172898, -0.2381119748319356, -0.04151679662580354, 0.1894018571284924, -0.057287993832152995, -0.032417775293522647, 0.03561172772404713, -0.08690869654023023, -0.09449121364294673, -0.3189424305756608, 0.32585673681931215, 0.010640521913990099, 0.20137113072318183, -0.04732064398141641, 0.034958808000063464, -0.09002768167831729, -0.11574316345511025, -0.018902151889868834, -0.21072942447150017, 0.027742147617276856, 0.24353299717644106, 0.1877225690734074, 0.2145176547220193, -0.3114543715387248, -0.21463828508424737, 0.047358122293240906, 0.20603599245503043, 0.06475079786651576, -0.07804172227424239, -0.19408469280482651, 0.07805590505784984, -0.19807985237215764, -0.12033488506482642, 0.059204062514969805, 0.05115970298787405, 0.07160037193946149, -0.2656412052983865, 0.15303126252247615, -0.01182216475704098, 0.08913691792533993, -0.10730248294624217, -0.11867156331444836, -0.12801025023819942, 0.13165131390394733, -0.01893898011847968, 0.09145073967546308, 0.20393772293161253, -0.12935515415457108, -0.027715843038987508, 0.3778743837168266, -0.08861707671709386, -0.05178153976424831, 0.21814894840672389, -0.19120738385001038, -0.1560575960967899, 0.116870422252194, 0.14601180258064012, 0.12545871404383319, -0.17662813888220918, -0.0013197330541713408, -0.005545812091495395, 0.23955883607547382, 0.022176173374349815, 0.03923382110543172, 0.2791731568377758, 0.11197621047440987, 0.056130235730443664, 0.050868812426558455, -0.15164454687290393, -0.06535055351876114, -0.23662796115139953, -0.0819005012818206, -0.09674772132521195, 0.09772251096118306, -0.14679814329717922, -0.11255102296835527, 0.3784867317523905, 0.1093739257059483, 0.254697070903518, 0.15198756579470155, 0.29856353833894717, 0.10124258270961571, 0.1255809716344544, 0.09199435667968477, 0.20730600947311867, 0.1733003361028539, 0.047632736650518794, -0.2522581655938485, 0.08759318178952132, 0.014139511761140455] |
707.3579 | Origin of the numerals, Zero concept | The partisans of the hypothesis of the Indian origin of the numerals create
confusion between the history of the Indian mathematics and the history of our
modern numerals. To argue the thesis of the Indian origin of the numbers they
confound between: the "intuitive zero " of Brahmagupta, that means ''nothing''
and which is the difference of two equal numbers, the "numeral zero" used in
the representation of the numbers and the "mathematical zero" defined by the
modern mathematicians. "Sifr" designate the "numeral zero" and "Shunya"
designate the "intuitive zero". The word "Sifr" is not a traduction of the word
"Shunya" and does not derive from the Indian word "Shunya", since the word
"Sifr" and its derivatives existed in Arabic long before the appearance of zero
itself The facts that the "intuitive zero" and the "mathematical zero" are
represented currently by the "numerals zero" symbol "0" are only consequences
of the representation of the numbers by the "Ghubari" numerals
| math.HO | the partisans of the hypothesis of the indian origin of the numerals create confusion between the history of the indian mathematics and the history of our modern numerals to argue the thesis of the indian origin of the numbers they confound between the intuitive zero of brahmagupta that means nothing and which is the difference of two equal numbers the numeral zero used in the representation of the numbers and the mathematical zero defined by the modern mathematicians sifr designate the numeral zero and shunya designate the intuitive zero the word sifr is not a traduction of the word shunya and does not derive from the indian word shunya since the word sifr and its derivatives existed in arabic long before the appearance of zero itself the facts that the intuitive zero and the mathematical zero are represented currently by the numerals zero symbol 0 are only consequences of the representation of the numbers by the ghubari numerals | [['the', 'partisans', 'of', 'the', 'hypothesis', 'of', 'the', 'indian', 'origin', 'of', 'the', 'numerals', 'create', 'confusion', 'between', 'the', 'history', 'of', 'the', 'indian', 'mathematics', 'and', 'the', 'history', 'of', 'our', 'modern', 'numerals', 'to', 'argue', 'the', 'thesis', 'of', 'the', 'indian', 'origin', 'of', 'the', 'numbers', 'they', 'confound', 'between', 'the', 'intuitive', 'zero', 'of', 'brahmagupta', 'that', 'means', 'nothing', 'and', 'which', 'is', 'the', 'difference', 'of', 'two', 'equal', 'numbers', 'the', 'numeral', 'zero', 'used', 'in', 'the', 'representation', 'of', 'the', 'numbers', 'and', 'the', 'mathematical', 'zero', 'defined', 'by', 'the', 'modern', 'mathematicians', 'sifr', 'designate', 'the', 'numeral', 'zero', 'and', 'shunya', 'designate', 'the', 'intuitive', 'zero', 'the', 'word', 'sifr', 'is', 'not', 'a', 'traduction', 'of', 'the', 'word', 'shunya', 'and', 'does', 'not', 'derive', 'from', 'the', 'indian', 'word', 'shunya', 'since', 'the', 'word', 'sifr', 'and', 'its', 'derivatives', 'existed', 'in', 'arabic', 'long', 'before', 'the', 'appearance', 'of', 'zero', 'itself', 'the', 'facts', 'that', 'the', 'intuitive', 'zero', 'and', 'the', 'mathematical', 'zero', 'are', 'represented', 'currently', 'by', 'the', 'numerals', 'zero', 'symbol', '0', 'are', 'only', 'consequences', 'of', 'the', 'representation', 'of', 'the', 'numbers', 'by', 'the', 'ghubari', 'numerals']] | [-0.09477546932239186, 0.13296181331269252, -0.13668553538541753, 0.1320063252410947, -0.13103772252081677, -0.08689338931789956, 0.070116182293322, 0.26394824063978517, -0.29876153242553416, -0.2840417226036199, 0.10918451056558973, -0.29248383031704295, -0.1354748452013621, 0.14870205227560243, -0.07158097660449596, -0.02352343983567642, 0.01741865818770841, 0.1597637763240924, -0.041833789265439965, -0.2765156285186561, 0.29870619009045934, 0.01680667593441635, 0.30324735082476995, 0.008967535227734165, 0.13888317209355777, -0.03807986166943104, -0.07195194315266772, -0.07723822654821934, -0.07894723290827152, 0.13336419622198895, 0.2711303611823286, 0.18328240292248665, 0.3100977490345637, -0.3817496967788499, -0.1317300651079187, 0.07701379396260166, 0.10932348773871453, 0.051147037014836826, 0.03135979951072771, -0.2776402161779025, 0.09297995283626594, -0.1760135357393525, -0.09985649150211173, 0.014177318326591585, 0.07945752830710262, 0.01890530771551988, -0.14284824434285745, 0.05522564366364326, 0.15008510808006692, 0.14153122833261314, -0.030508928258383933, -0.17533492922591856, -0.021479915079768173, 0.20877769613005698, 0.10254726742501728, 0.00736647444174219, 0.03856592453741588, -0.14795645842185387, -0.12268628254950716, 0.37624777569316137, -0.05607792502269149, -0.19466359912453648, 0.19631417478339222, -0.16245883906510875, -0.07684558786105555, 0.0775792771914544, 0.06827821312412524, 0.07324266562369676, -0.11858920203462148, 0.10145286510986551, -0.058473593077789515, 0.16622263146265864, 0.13257469550575104, -0.007896324261449851, 0.2563451054888085, 0.09410499614209701, -0.032535800095408775, 0.10183124250780122, -0.07791643529139364, -0.0843559697521134, -0.27967336760738337, -0.17217790512427783, -0.2259816437905941, 0.013086083127396146, -0.0661488931111354, -0.21168782762609994, 0.39105545598058367, 0.15842458315623495, 0.16068230180117565, 0.05884914069797677, 0.2659974303096533, 0.09512070852752703, 0.09202018441954771, 0.05043376829379644, 0.16801249698544732, 0.1107616967936524, 0.11578693822360574, -0.18799235236320572, 0.10467343446679223, 0.06529106677342685] |
707.358 | Spin Hall Effect and Spin Orbit coupling in Ballistic Nanojunctions | We propose a new scheme of spin filtering based on nanometric crossjunctions
in the presence of Spin Orbit interaction, employing ballistic nanojunctions
patterned in a two-dimensional electron gas. We demonstrate that the flow of a
longitudinal unpolarized current through a ballistic X junction patterned in a
two-dimensional electron gas with Spin Orbit coupling (SOC) induces a spin
accumulation which has opposite signs for the two lateral probes. This spin
accumulation, corresponding to a transverse pure spin current flowing in the
junction, is the main observable signature of the spin Hall effect in such
nanostructures.
We benchmark the effects of two different kinds of Spin Orbit interactions.
The first one ($\alpha$-SOC) is due to the interface electric field that
confines electrons to a two-dimensional layer, whereas the second one
($\beta$-SOC) corresponds to the interaction generated by a lateral confining
potential.
| cond-mat.mes-hall | we propose a new scheme of spin filtering based on nanometric crossjunctions in the presence of spin orbit interaction employing ballistic nanojunctions patterned in a twodimensional electron gas we demonstrate that the flow of a longitudinal unpolarized current through a ballistic x junction patterned in a twodimensional electron gas with spin orbit coupling soc induces a spin accumulation which has opposite signs for the two lateral probes this spin accumulation corresponding to a transverse pure spin current flowing in the junction is the main observable signature of the spin hall effect in such nanostructures we benchmark the effects of two different kinds of spin orbit interactions the first one alphasoc is due to the interface electric field that confines electrons to a twodimensional layer whereas the second one betasoc corresponds to the interaction generated by a lateral confining potential | [['we', 'propose', 'a', 'new', 'scheme', 'of', 'spin', 'filtering', 'based', 'on', 'nanometric', 'crossjunctions', 'in', 'the', 'presence', 'of', 'spin', 'orbit', 'interaction', 'employing', 'ballistic', 'nanojunctions', 'patterned', 'in', 'a', 'twodimensional', 'electron', 'gas', 'we', 'demonstrate', 'that', 'the', 'flow', 'of', 'a', 'longitudinal', 'unpolarized', 'current', 'through', 'a', 'ballistic', 'x', 'junction', 'patterned', 'in', 'a', 'twodimensional', 'electron', 'gas', 'with', 'spin', 'orbit', 'coupling', 'soc', 'induces', 'a', 'spin', 'accumulation', 'which', 'has', 'opposite', 'signs', 'for', 'the', 'two', 'lateral', 'probes', 'this', 'spin', 'accumulation', 'corresponding', 'to', 'a', 'transverse', 'pure', 'spin', 'current', 'flowing', 'in', 'the', 'junction', 'is', 'the', 'main', 'observable', 'signature', 'of', 'the', 'spin', 'hall', 'effect', 'in', 'such', 'nanostructures', 'we', 'benchmark', 'the', 'effects', 'of', 'two', 'different', 'kinds', 'of', 'spin', 'orbit', 'interactions', 'the', 'first', 'one', 'alphasoc', 'is', 'due', 'to', 'the', 'interface', 'electric', 'field', 'that', 'confines', 'electrons', 'to', 'a', 'twodimensional', 'layer', 'whereas', 'the', 'second', 'one', 'betasoc', 'corresponds', 'to', 'the', 'interaction', 'generated', 'by', 'a', 'lateral', 'confining', 'potential']] | [-0.22296554617070505, 0.20384251121958433, -0.05098360964907741, -0.0149546770309268, -0.015026845116113876, -0.13952324991148427, -0.010766862191423013, 0.3797669760189461, -0.2668535205719136, -0.24698290560584868, -0.002820679680852179, -0.27421220200965657, -0.09375788942387286, 0.1903112580741409, 0.05925746616842837, -0.00026084736914095216, -0.002817002017166547, -0.048740110740772565, -0.10202511866665344, -0.1467976232881855, 0.30601587241692263, -0.028844278050844906, 0.303070333453208, 0.10270032460672142, 0.13153725208197958, 0.055592383424595104, 0.09143512382811057, 0.03841474196486121, -0.09609056126641154, 0.0664788413254109, 0.17478747988531, -0.13726982956643413, 0.19982559111540335, -0.4841957616341049, -0.18970296126756356, 0.009898756243234132, 0.1296475627425596, 0.19095891417959285, -0.09796506122696166, -0.27345438661855936, 0.010487367150910797, -0.21440734848529644, -0.13511607649457388, 0.0021357529110064472, 0.02251396495865889, -0.01706050434081822, -0.27079521962883374, 0.10003449278713687, 0.10719072154593946, 0.024525508114619413, -0.0338602892877738, -0.07132359917605309, -0.08840560722402739, 0.08728724367318362, 0.04756163230189632, 0.06668736295516256, 0.2198230528619385, -0.13094154863795063, -0.16600719962037935, 0.3300666289988661, -0.10956466302316445, -0.19854701217433887, 0.1995081856972572, -0.2239635657029648, -0.015012326670715408, 0.14475747775354417, 0.1792686515037152, 0.08657824263625853, -0.15629514332276082, 0.06565393588376524, -0.04520529397443807, 0.12556347074361016, 0.06166761084570189, 0.03390325394452271, 0.33307654075460497, 0.22244661643992375, 0.08422989449905653, 0.14243826721488995, -0.20273683035753015, -0.07189778938046555, -0.2180351028014926, -0.18893558856262996, -0.21055521502628596, 0.12060617350286594, -0.03903440379088976, -0.17767881711496272, 0.4500232487025509, 0.18404310135865273, 0.1734773545274443, -0.10151303273941778, 0.3201899356378691, 0.08772139216562475, 0.08166704537605282, 0.02601389849879677, 0.23918973547100586, 0.18325595145052584, 0.08037799328266487, -0.3077810420503884, 0.034092987041213434, 0.020685705228837847] |
707.3581 | Characterizing locally distinguishable orthogonal product states | Bennett et al. \cite{BDF+99} identified a set of orthogonal {\em product}
states in the $3\otimes 3$ Hilbert space such that reliably distinguishing
those states requires non-local quantum operations. While more examples have
been found for this counter-intuitive ``nonlocality without entanglement''
phenomenon, a complete and computationally verifiable characterization for all
such sets of states remains unknown. In this Letter, we give such a
characterization for the $3\otimes 3$ space.
| quant-ph | bennett et al citebdf99 identified a set of orthogonal em product states in the 3otimes 3 hilbert space such that reliably distinguishing those states requires nonlocal quantum operations while more examples have been found for this counterintuitive nonlocality without entanglement phenomenon a complete and computationally verifiable characterization for all such sets of states remains unknown in this letter we give such a characterization for the 3otimes 3 space | [['bennett', 'et', 'al', 'citebdf99', 'identified', 'a', 'set', 'of', 'orthogonal', 'em', 'product', 'states', 'in', 'the', '3otimes', '3', 'hilbert', 'space', 'such', 'that', 'reliably', 'distinguishing', 'those', 'states', 'requires', 'nonlocal', 'quantum', 'operations', 'while', 'more', 'examples', 'have', 'been', 'found', 'for', 'this', 'counterintuitive', 'nonlocality', 'without', 'entanglement', 'phenomenon', 'a', 'complete', 'and', 'computationally', 'verifiable', 'characterization', 'for', 'all', 'such', 'sets', 'of', 'states', 'remains', 'unknown', 'in', 'this', 'letter', 'we', 'give', 'such', 'a', 'characterization', 'for', 'the', '3otimes', '3', 'space']] | [-0.14219772155959604, 0.15086423862836698, -0.04414325823256774, 0.08533102598861415, -0.024926017156677013, -0.15258146855118337, 0.066347173397749, 0.3347950323915748, -0.21133741205766685, -0.3074894701686702, 0.0855787103099109, -0.2357068047372263, -0.17430025335651503, 0.21188556839392256, -0.08974812013694822, 0.10963957809579017, 0.054758283587645236, -0.00869612905210746, -0.03833694404005004, -0.26760952119409703, 0.32898166228725173, -0.010093214674487904, 0.23089782904777953, 0.018470731946125404, 0.07568494919270499, 0.02825849041092529, -0.021007191987513607, 0.029038915312466725, -0.13963498492473683, 0.08647522368596923, 0.296879738624861, 0.1828858207584595, 0.27225512927815093, -0.3982880882807632, -0.22457271393861122, 0.1717257742603212, 0.1180876286130454, 0.1568381415937207, -0.04196340739905118, -0.3048097651118218, 0.035063904251402885, -0.17285976108552806, -0.11451219733971268, -0.16490037750397155, 0.09613280488984353, -0.11269940481844372, -0.2781012112191364, 0.05559889677522788, 0.09400175275531278, 0.0796171023037785, 0.005704964830804227, -0.0968550649930292, 0.015088911732978452, 0.08812985177944178, -0.13520465329734246, 0.001403444085214565, 0.03510104081551753, -0.07273459642319315, -0.18304568337304378, 0.3311374150772593, 0.021315805962371794, -0.20547325514433315, 0.21948341616610093, -0.1064380824343482, -0.17097024422194532, 0.1015693472781733, 0.08236820007493692, 0.1301860470296954, -0.118870503807774, 0.08382583690247734, -0.11833136331345608, 0.11539974511225722, 0.11851119512775496, 0.17786458111715628, 0.11716790430581392, 0.06855169324892392, 0.09888754088654002, 0.1479682927923416, -0.013221331611414677, -0.054164839301209675, -0.3171023459715852, -0.23479949193659114, -0.2404587736593059, 0.09326853957235702, -0.02684687547808784, -0.17243773798777987, 0.40048012692036467, 0.07220209606770259, 0.1985224687021726, 0.030053763177746266, 0.21999116403175822, 0.03954948338792041, 0.014027420167269102, 0.12597606072563733, 0.23758282576367926, 0.11396385484666967, 0.034010341894854586, -0.1411550198334144, 0.093395722673775, 0.03450809442090677] |
707.3582 | An HI Threshold for Star Cluster Formation in Tidal Debris | Super star clusters are young, compact star clusters found in the central
regions of interacting galaxies. Recently, they have also been reported to
preferentially form in certain tidal tails, but not in others. In this paper,
we have used 21 cm HI maps and the Hubble Space Telescope Wide Field Planetary
Camera 2 images of eight tidal tail regions of four merging galaxy pairs to
compare the kiloparsec scale HI distribution with the location of super star
clusters found from the optical images. For most of the tails, we find that
there is an increase in super star cluster density with increasing projected HI
column density, such that the star cluster density is highest when log N(HI) >=
20.6 cm^{-2}, but equal to the background count rate at lower HI column
density. However, for two tails (NGC 4038/39 Pos A and NGC 3921), there is no
significant star cluster population despite the presence of gas at high column
density. This implies that the N(HI) threshold is a necessary but not
sufficient condition for cluster formation. Gas volume density is likely to
provide a more direct criterion for cluster formation, and other factors such
as gas pressure or strength of encounter may also have an influence. Comparison
of HI thresholds needed for formation of different types of stellar structures
await higher resolution HI and optical observations of larger numbers of
interacting galaxies.
| astro-ph | super star clusters are young compact star clusters found in the central regions of interacting galaxies recently they have also been reported to preferentially form in certain tidal tails but not in others in this paper we have used 21 cm hi maps and the hubble space telescope wide field planetary camera 2 images of eight tidal tail regions of four merging galaxy pairs to compare the kiloparsec scale hi distribution with the location of super star clusters found from the optical images for most of the tails we find that there is an increase in super star cluster density with increasing projected hi column density such that the star cluster density is highest when log nhi 206 cm2 but equal to the background count rate at lower hi column density however for two tails ngc 403839 pos a and ngc 3921 there is no significant star cluster population despite the presence of gas at high column density this implies that the nhi threshold is a necessary but not sufficient condition for cluster formation gas volume density is likely to provide a more direct criterion for cluster formation and other factors such as gas pressure or strength of encounter may also have an influence comparison of hi thresholds needed for formation of different types of stellar structures await higher resolution hi and optical observations of larger numbers of interacting galaxies | [['super', 'star', 'clusters', 'are', 'young', 'compact', 'star', 'clusters', 'found', 'in', 'the', 'central', 'regions', 'of', 'interacting', 'galaxies', 'recently', 'they', 'have', 'also', 'been', 'reported', 'to', 'preferentially', 'form', 'in', 'certain', 'tidal', 'tails', 'but', 'not', 'in', 'others', 'in', 'this', 'paper', 'we', 'have', 'used', '21', 'cm', 'hi', 'maps', 'and', 'the', 'hubble', 'space', 'telescope', 'wide', 'field', 'planetary', 'camera', '2', 'images', 'of', 'eight', 'tidal', 'tail', 'regions', 'of', 'four', 'merging', 'galaxy', 'pairs', 'to', 'compare', 'the', 'kiloparsec', 'scale', 'hi', 'distribution', 'with', 'the', 'location', 'of', 'super', 'star', 'clusters', 'found', 'from', 'the', 'optical', 'images', 'for', 'most', 'of', 'the', 'tails', 'we', 'find', 'that', 'there', 'is', 'an', 'increase', 'in', 'super', 'star', 'cluster', 'density', 'with', 'increasing', 'projected', 'hi', 'column', 'density', 'such', 'that', 'the', 'star', 'cluster', 'density', 'is', 'highest', 'when', 'log', 'nhi', '206', 'cm2', 'but', 'equal', 'to', 'the', 'background', 'count', 'rate', 'at', 'lower', 'hi', 'column', 'density', 'however', 'for', 'two', 'tails', 'ngc', '403839', 'pos', 'a', 'and', 'ngc', '3921', 'there', 'is', 'no', 'significant', 'star', 'cluster', 'population', 'despite', 'the', 'presence', 'of', 'gas', 'at', 'high', 'column', 'density', 'this', 'implies', 'that', 'the', 'nhi', 'threshold', 'is', 'a', 'necessary', 'but', 'not', 'sufficient', 'condition', 'for', 'cluster', 'formation', 'gas', 'volume', 'density', 'is', 'likely', 'to', 'provide', 'a', 'more', 'direct', 'criterion', 'for', 'cluster', 'formation', 'and', 'other', 'factors', 'such', 'as', 'gas', 'pressure', 'or', 'strength', 'of', 'encounter', 'may', 'also', 'have', 'an', 'influence', 'comparison', 'of', 'hi', 'thresholds', 'needed', 'for', 'formation', 'of', 'different', 'types', 'of', 'stellar', 'structures', 'await', 'higher', 'resolution', 'hi', 'and', 'optical', 'observations', 'of', 'larger', 'numbers', 'of', 'interacting', 'galaxies']] | [-0.07742673674846351, 0.10663827809254618, -0.049406131601932905, 0.09644281787990147, -0.054685809126164275, -0.04592885131158097, 0.011907613459144435, 0.4429987535123592, -0.12632168227675086, -0.3410736199630343, 0.057662001353911245, -0.27125483770328374, -0.050215221776465035, 0.16100000006997067, -0.010157412391803835, -0.022645336140007914, 0.03785453572484624, -0.009187066985127192, -0.05442990622047902, -0.3195296990346042, 0.32100836174036174, 0.08078372488506948, 0.19254855073522775, -0.0023051568686597696, 0.07179928442217162, -0.11254714126369673, -0.06078171432625664, -0.006083951216398577, -0.15890393421283552, 0.059243403893196954, 0.2557718004049409, 0.1360325125562351, 0.23971308834202912, -0.3912727864580634, -0.20087533136424812, 0.09827130938799161, 0.2226364861536042, 0.04271213257806781, -0.09350634844570026, -0.25364498385714124, 0.08105507376654397, -0.23719872074890072, -0.18829215285469494, 0.06759057293301853, 0.09595612581849665, 0.0650081645570817, -0.2227568635231127, 0.19064984055863612, -0.013017891479008224, 0.08164679867660869, -0.09047167487847416, -0.1093970118050018, -0.053959650621729215, 0.07979139462581572, -0.026069416357811702, 0.08455145182037402, 0.22035708041942637, -0.20689797390697767, 0.02775801360890593, 0.38617117465979867, -0.043105737383112956, -0.020209478275121553, 0.2860809356784043, -0.2531674859837791, -0.22481143369703838, 0.1708381227683276, 0.13520841525624627, 0.057549180896223885, -0.1299035817119622, -0.0021266552751235987, -0.06262678069305484, 0.22071187785300223, 0.10252239822774478, 0.08036732995919327, 0.30969364316121717, 0.06194069795506632, 0.13136265514489345, 0.08035725134515972, -0.23464567622817728, -0.017870702033700503, -0.19411430505367563, -0.10354589040608793, -0.13416925996197793, 0.043454981326130626, -0.14206724007140703, -0.12531687909858708, 0.2657651572214925, 0.07780626949945303, 0.2433392230886966, 0.05049271782450176, 0.260042046998506, 0.10709838318036181, 0.12500226138888493, 0.11612741743902798, 0.2345686143162944, 0.1902532212841122, 0.031734318628340315, -0.20968980630252348, 0.07050272548652213, -0.0063834712767224435] |
707.3583 | Generalized Differential Galois Theory | A Galois theory of differential fields with parameters is developed in a
manner that generalizes Kolchin's theory. It is shown that all connected
differential algebraic groups are Galois groups of some appropriate
differential field extension.
| nlin.SI | a galois theory of differential fields with parameters is developed in a manner that generalizes kolchins theory it is shown that all connected differential algebraic groups are galois groups of some appropriate differential field extension | [['a', 'galois', 'theory', 'of', 'differential', 'fields', 'with', 'parameters', 'is', 'developed', 'in', 'a', 'manner', 'that', 'generalizes', 'kolchins', 'theory', 'it', 'is', 'shown', 'that', 'all', 'connected', 'differential', 'algebraic', 'groups', 'are', 'galois', 'groups', 'of', 'some', 'appropriate', 'differential', 'field', 'extension']] | [-0.2433373591430219, 0.07784354282276972, -0.18888284069086825, 0.10231384438728648, -0.1836411649494299, -0.13478161157774074, -0.10340752551731254, 0.31459398961492946, -0.3341001258763884, -0.2793302980916841, 0.0796415717041652, -0.24577248458351408, -0.22166299243856755, 0.24719172386186464, -0.17704482511617242, -0.0009164938170995031, -0.015954031608998775, 0.1624851488375238, -0.02841005180297153, -0.31341671837227686, 0.39721134222511734, -0.07400106872831072, 0.21245544435722488, -0.0651979641057551, 0.14915442480040447, 0.027737992256879805, -0.06587082535178135, 0.09131217045443399, -0.09285147528238927, 0.1290147375847612, 0.41757873211588176, 0.012719148450664111, 0.21524586991540023, -0.3631378800475172, -0.21529236350740705, 0.13063827324658633, 0.09545078547671437, 0.07654106586373279, -0.08947136668222291, -0.2555076236171382, 0.09846711717545986, -0.1685382746958307, -0.12723318290497576, -0.10623607010181461, 0.05344003316879805, 0.04969977821622576, -0.2571048106998205, -0.021562867052853107, 0.0517342573663752, 0.18090428890926497, -0.05508454720090542, -0.09496792788683836, -0.0261922324209341, 0.033222310657479937, -0.015526117530784436, 0.03907246453953641, 0.14696207509509154, -0.0814344106774245, -0.12990309976573503, 0.3219181122923536, -0.08447134159505368, -0.21423788171793734, 0.09669275278491633, -0.14225139495517528, -0.193402259384415, 0.15503533982804843, 0.04754334815910884, 0.16732397601008414, -0.13617399239114353, 0.24113856279956444, -0.1675549470952579, 0.10444484821387699, 0.038019022438675165, -0.03821809720247984, 0.06298977777894055, 0.08812767235296114, 0.1066961730165141, 0.02955403116398624, 0.10645263184394155, -0.11930341075307556, -0.3621003270149231, -0.15297802073348846, 0.008296331493849202, 0.03731451420379536, -0.051270159985870124, -0.1443584064445791, 0.3742130288055965, 0.1176763788131731, 0.11972466044660125, 0.110842175063278, 0.22999345851796013, 0.1446079115782465, 0.10848199416484151, 0.03148709801690919, 0.14490326274868234, 0.3907549281737634, -0.02185773838843618, -0.13717819880694151, -0.033229946238654, 0.14802251483446785] |
707.3584 | The effect of fading, channel inversion, and threshold scheduling on ad
hoc networks | This paper addresses three issues in the field of ad hoc network capacity:
the impact of i)channel fading, ii) channel inversion power control, and iii)
threshold-based scheduling on capacity. Channel inversion and threshold
scheduling may be viewed as simple ways to exploit channel state information
(CSI) without requiring cooperation across transmitters. We use the
transmission capacity (TC) as our metric, defined as the maximum spatial
intensity of successful simultaneous transmissions subject to a constraint on
the outage probability (OP). By assuming the nodes are located on the infinite
plane according to a Poisson process, we are able to employ tools from
stochastic geometry to obtain asymptotically tight bounds on the distribution
of the signal-to-interference (SIR) level, yielding in turn tight bounds on the
OP (relative to a given SIR threshold) and the TC. We demonstrate that in the
absence of CSI, fading can significantly reduce the TC and somewhat
surprisingly, channel inversion only makes matters worse. We develop a
threshold-based transmission rule where transmitters are active only if the
channel to their receiver is acceptably strong, obtain expressions for the
optimal threshold, and show that this simple, fully distributed scheme can
significantly reduce the effect of fading.
| cs.IT math.IT | this paper addresses three issues in the field of ad hoc network capacity the impact of ichannel fading ii channel inversion power control and iii thresholdbased scheduling on capacity channel inversion and threshold scheduling may be viewed as simple ways to exploit channel state information csi without requiring cooperation across transmitters we use the transmission capacity tc as our metric defined as the maximum spatial intensity of successful simultaneous transmissions subject to a constraint on the outage probability op by assuming the nodes are located on the infinite plane according to a poisson process we are able to employ tools from stochastic geometry to obtain asymptotically tight bounds on the distribution of the signaltointerference sir level yielding in turn tight bounds on the op relative to a given sir threshold and the tc we demonstrate that in the absence of csi fading can significantly reduce the tc and somewhat surprisingly channel inversion only makes matters worse we develop a thresholdbased transmission rule where transmitters are active only if the channel to their receiver is acceptably strong obtain expressions for the optimal threshold and show that this simple fully distributed scheme can significantly reduce the effect of fading | [['this', 'paper', 'addresses', 'three', 'issues', 'in', 'the', 'field', 'of', 'ad', 'hoc', 'network', 'capacity', 'the', 'impact', 'of', 'ichannel', 'fading', 'ii', 'channel', 'inversion', 'power', 'control', 'and', 'iii', 'thresholdbased', 'scheduling', 'on', 'capacity', 'channel', 'inversion', 'and', 'threshold', 'scheduling', 'may', 'be', 'viewed', 'as', 'simple', 'ways', 'to', 'exploit', 'channel', 'state', 'information', 'csi', 'without', 'requiring', 'cooperation', 'across', 'transmitters', 'we', 'use', 'the', 'transmission', 'capacity', 'tc', 'as', 'our', 'metric', 'defined', 'as', 'the', 'maximum', 'spatial', 'intensity', 'of', 'successful', 'simultaneous', 'transmissions', 'subject', 'to', 'a', 'constraint', 'on', 'the', 'outage', 'probability', 'op', 'by', 'assuming', 'the', 'nodes', 'are', 'located', 'on', 'the', 'infinite', 'plane', 'according', 'to', 'a', 'poisson', 'process', 'we', 'are', 'able', 'to', 'employ', 'tools', 'from', 'stochastic', 'geometry', 'to', 'obtain', 'asymptotically', 'tight', 'bounds', 'on', 'the', 'distribution', 'of', 'the', 'signaltointerference', 'sir', 'level', 'yielding', 'in', 'turn', 'tight', 'bounds', 'on', 'the', 'op', 'relative', 'to', 'a', 'given', 'sir', 'threshold', 'and', 'the', 'tc', 'we', 'demonstrate', 'that', 'in', 'the', 'absence', 'of', 'csi', 'fading', 'can', 'significantly', 'reduce', 'the', 'tc', 'and', 'somewhat', 'surprisingly', 'channel', 'inversion', 'only', 'makes', 'matters', 'worse', 'we', 'develop', 'a', 'thresholdbased', 'transmission', 'rule', 'where', 'transmitters', 'are', 'active', 'only', 'if', 'the', 'channel', 'to', 'their', 'receiver', 'is', 'acceptably', 'strong', 'obtain', 'expressions', 'for', 'the', 'optimal', 'threshold', 'and', 'show', 'that', 'this', 'simple', 'fully', 'distributed', 'scheme', 'can', 'significantly', 'reduce', 'the', 'effect', 'of', 'fading']] | [-0.20211727246737146, 0.05074594754604528, -0.039179836390349936, 0.0641358840402694, -0.09533383576579545, -0.24535680142687444, 0.19527849349328696, 0.4028735097535715, -0.2550966855273962, -0.29212097692949585, 0.10712290544131751, -0.21103435462668577, -0.15385349883284533, 0.1188392721838793, -0.1236621084271417, 0.033421480223092215, 0.012863818766033677, 0.07194980750174014, -0.052969980856631786, -0.2596105932571678, 0.3100460601800682, 0.14329987998377075, 0.36674320483960365, 0.04110503306479326, 0.07134832587444737, 0.03033684181496121, -0.014650798816119835, -0.014919060792951258, -0.12934287402184017, 0.043737937531158406, 0.2816668867171571, 0.15199560088720837, 0.1997539695846487, -0.4249043558933297, -0.2562196709593397, 0.0897674679575602, 0.16883059749210477, 0.08278653592231199, 0.001415824745092731, -0.24661731970382436, 0.11051939605326601, -0.19180996831368693, -0.03266466487132545, 0.006057455608317134, -0.07611833008217664, 0.03176946334460066, -0.3418918985882964, 0.05140655569028946, 0.0259919234157474, 0.014243343581293463, -0.03504055587109178, -0.14065676333492014, 0.0018106538333754264, 0.14871211247863153, 0.02854186019902379, -0.04462764770899096, 0.11538356361549576, -0.1123433556878103, -0.08622055117287958, 0.3315604312716014, -0.0314367138626225, -0.21812659949515661, 0.1349380755559743, -0.10596500842461401, -0.07240909635925627, 0.18046622627357745, 0.23254569014831333, 0.07328989277403726, -0.17286365163959183, 0.03460962942424848, -0.008178206144033797, 0.18560036920172598, 0.06584386723543688, 0.08351469201948114, 0.12499393744166104, 0.13700911030173302, 0.14728947674703538, 0.14630618494429284, -0.13800754983866664, -0.12225221455268258, -0.2583345477457386, -0.10571165094437192, -0.17532024680392114, 0.057621785499540404, -0.09968725256721325, -0.10195100136048978, 0.33363936448116577, 0.13377328739205746, 0.1833004594331474, 0.12142991568350912, 0.33960058075870025, 0.15248195295892086, 0.027899554290343076, 0.1574004922390022, 0.22831148725259592, 0.1298143367475488, 0.10526378062430161, -0.21373275852564969, 0.1289757817641509, -0.010265332023014448] |
707.3585 | Effects of partial triple excitations in atomic coupled cluster
calculations | In this article we study the effects of higher body excitations in the
relativistic CC calculations for atoms and ions with one valence electron using
Fock-space CCSD, CCSD(T) and its unitary variants. The present study
demonstrates that CCSD(T) estimates the ionization potentials (IPs) and the
valence electron removal energies quite accurately for alkali atoms and singly
ionized alkaline earth ions, but yields unphysical energy levels for atoms
and/or ions with partially filled sub-shell like C II. We further demonstrate
that the higher body excitation effects can be incorporated more effectively
through the unitary coupled cluster theory (UCC) compared to the CCSD(T)
method.
| physics.atom-ph physics.chem-ph | in this article we study the effects of higher body excitations in the relativistic cc calculations for atoms and ions with one valence electron using fockspace ccsd ccsdt and its unitary variants the present study demonstrates that ccsdt estimates the ionization potentials ips and the valence electron removal energies quite accurately for alkali atoms and singly ionized alkaline earth ions but yields unphysical energy levels for atoms andor ions with partially filled subshell like c ii we further demonstrate that the higher body excitation effects can be incorporated more effectively through the unitary coupled cluster theory ucc compared to the ccsdt method | [['in', 'this', 'article', 'we', 'study', 'the', 'effects', 'of', 'higher', 'body', 'excitations', 'in', 'the', 'relativistic', 'cc', 'calculations', 'for', 'atoms', 'and', 'ions', 'with', 'one', 'valence', 'electron', 'using', 'fockspace', 'ccsd', 'ccsdt', 'and', 'its', 'unitary', 'variants', 'the', 'present', 'study', 'demonstrates', 'that', 'ccsdt', 'estimates', 'the', 'ionization', 'potentials', 'ips', 'and', 'the', 'valence', 'electron', 'removal', 'energies', 'quite', 'accurately', 'for', 'alkali', 'atoms', 'and', 'singly', 'ionized', 'alkaline', 'earth', 'ions', 'but', 'yields', 'unphysical', 'energy', 'levels', 'for', 'atoms', 'andor', 'ions', 'with', 'partially', 'filled', 'subshell', 'like', 'c', 'ii', 'we', 'further', 'demonstrate', 'that', 'the', 'higher', 'body', 'excitation', 'effects', 'can', 'be', 'incorporated', 'more', 'effectively', 'through', 'the', 'unitary', 'coupled', 'cluster', 'theory', 'ucc', 'compared', 'to', 'the', 'ccsdt', 'method']] | [-0.016824496965901013, 0.1974518684665764, 0.006826922992545673, 0.09585770015423893, 0.09434119149969489, -0.1846187021172441, 0.08747662162960634, 0.3851994466967881, -0.1780235781014769, -0.27555628153997674, -0.09021291285798903, -0.3702441973100398, -0.03665499887703096, 0.09435749067422733, 0.05024198203018921, -0.015089354654157753, 0.12642705201983964, -0.03195439732870927, -0.12202597202678375, -0.2084289374396059, 0.2683332951091157, 0.12800667580107555, 0.20268234797963397, 0.11423598357941955, 0.027113886111799407, 0.014058205703109065, 0.06829346156697355, 0.01162625442934679, -0.04262780659337295, 0.16542386574734586, 0.26520968914972437, 0.011692876256454517, 0.20933920906527953, -0.5084600190029425, -0.2076222597183112, -0.0035885569123624297, 0.16055134386645958, 0.20074017245468556, -0.0730905413415623, -0.2964293544509393, -0.014232277130598532, -0.2203154658496964, -0.18038869621779988, -0.15442618613094822, -0.022837005044315375, 0.037619988922504524, -0.24776442443230645, 0.09972900249903985, 0.0005586122883958559, 0.05424409945814713, -0.1317669122888451, -0.1851267149653651, -0.04190536159748102, 0.016899019822149593, -0.0031919061302152626, 0.009244845390283302, 0.19921683397728437, -0.047460855457329136, -0.06872401184256316, 0.469251266370217, -0.07078078737044159, -0.15855805780373367, 0.22489147547486366, -0.2025699080470219, -0.11020000781704142, 0.19714217937971448, 0.09179164556311055, 0.13082388875430778, -0.12726073391169457, 0.08610948127027893, 0.006158718830157144, 0.18770191313781062, 0.08982333488871946, 0.06432945673883546, 0.1624948701172994, 0.07420864997102934, 0.010512618322037252, 0.09585282307771016, -0.12952842810830356, -0.08921349987013302, -0.20366285175830354, -0.1617572291973321, -0.1304311108702392, -0.007810991042859706, -0.03265926735327287, -0.1792435285580509, 0.3761821655081768, 0.10738783747450832, 0.09951395626230092, -0.05552628797972027, 0.2790992588361762, 0.09871419397748861, 0.05065089798025677, 0.07113465027399726, 0.24325276007327964, 0.17662489472651013, 0.014305186245645233, -0.3341187333423352, 0.013583856000218029, 0.08137683446893432] |
707.3586 | Branching ratios of radiative transitions in O VI | We study the branching ratios of the allowed and forbidden radiative
transitions among the first few (9) fine structure levels of O VI using
relativistic coupled cluster theory. We find irregular patterns for a number of
transitions with in $n$-complexes with $n\le4$. We have used the exisiting
values of the allowed electric dipole ($E1$) transition as a benchmark of our
theory. Good agreement with the existing values establish accuracies of not
only the theoretical method but the basis function as well. In general the
electric quadrupole ($E2$) transition probabilities are greater in magnitude
than magnetic dipole ($M1$) transition probabilities, whereas for medium atomic
transition frequencies they are of the same order of magnitude. On the other
hand if the transitions involved are between two fine structure components of
the same term, then the $M1$ transition probability is more probable than that
of $E2$. We have analyzed these trends with physical arguments and order of
magnitude estimations. The results presented here in tabular and graphical
forms are compared with the available theoretical and observed data. Graphical
analysis helps to understand the trends of electric and magnetic transitions
for the decay channels presented here. Our calculated values of the lifetimes
of the excited states are in very good agreement with the available results.
| physics.atom-ph physics.plasm-ph | we study the branching ratios of the allowed and forbidden radiative transitions among the first few 9 fine structure levels of o vi using relativistic coupled cluster theory we find irregular patterns for a number of transitions with in ncomplexes with nle4 we have used the exisiting values of the allowed electric dipole e1 transition as a benchmark of our theory good agreement with the existing values establish accuracies of not only the theoretical method but the basis function as well in general the electric quadrupole e2 transition probabilities are greater in magnitude than magnetic dipole m1 transition probabilities whereas for medium atomic transition frequencies they are of the same order of magnitude on the other hand if the transitions involved are between two fine structure components of the same term then the m1 transition probability is more probable than that of e2 we have analyzed these trends with physical arguments and order of magnitude estimations the results presented here in tabular and graphical forms are compared with the available theoretical and observed data graphical analysis helps to understand the trends of electric and magnetic transitions for the decay channels presented here our calculated values of the lifetimes of the excited states are in very good agreement with the available results | [['we', 'study', 'the', 'branching', 'ratios', 'of', 'the', 'allowed', 'and', 'forbidden', 'radiative', 'transitions', 'among', 'the', 'first', 'few', '9', 'fine', 'structure', 'levels', 'of', 'o', 'vi', 'using', 'relativistic', 'coupled', 'cluster', 'theory', 'we', 'find', 'irregular', 'patterns', 'for', 'a', 'number', 'of', 'transitions', 'with', 'in', 'ncomplexes', 'with', 'nle4', 'we', 'have', 'used', 'the', 'exisiting', 'values', 'of', 'the', 'allowed', 'electric', 'dipole', 'e1', 'transition', 'as', 'a', 'benchmark', 'of', 'our', 'theory', 'good', 'agreement', 'with', 'the', 'existing', 'values', 'establish', 'accuracies', 'of', 'not', 'only', 'the', 'theoretical', 'method', 'but', 'the', 'basis', 'function', 'as', 'well', 'in', 'general', 'the', 'electric', 'quadrupole', 'e2', 'transition', 'probabilities', 'are', 'greater', 'in', 'magnitude', 'than', 'magnetic', 'dipole', 'm1', 'transition', 'probabilities', 'whereas', 'for', 'medium', 'atomic', 'transition', 'frequencies', 'they', 'are', 'of', 'the', 'same', 'order', 'of', 'magnitude', 'on', 'the', 'other', 'hand', 'if', 'the', 'transitions', 'involved', 'are', 'between', 'two', 'fine', 'structure', 'components', 'of', 'the', 'same', 'term', 'then', 'the', 'm1', 'transition', 'probability', 'is', 'more', 'probable', 'than', 'that', 'of', 'e2', 'we', 'have', 'analyzed', 'these', 'trends', 'with', 'physical', 'arguments', 'and', 'order', 'of', 'magnitude', 'estimations', 'the', 'results', 'presented', 'here', 'in', 'tabular', 'and', 'graphical', 'forms', 'are', 'compared', 'with', 'the', 'available', 'theoretical', 'and', 'observed', 'data', 'graphical', 'analysis', 'helps', 'to', 'understand', 'the', 'trends', 'of', 'electric', 'and', 'magnetic', 'transitions', 'for', 'the', 'decay', 'channels', 'presented', 'here', 'our', 'calculated', 'values', 'of', 'the', 'lifetimes', 'of', 'the', 'excited', 'states', 'are', 'in', 'very', 'good', 'agreement', 'with', 'the', 'available', 'results']] | [-0.09559133577665004, 0.14612701816839122, -0.005668054012182568, 0.08191859054079811, -0.024872817216341252, -0.10091888337351737, 0.06353145216569482, 0.41480222947984224, -0.1675537582941442, -0.352377321695288, 0.03936248515078443, -0.29363691171719913, -0.0951997336000204, 0.16815449074797686, 0.05964072849601507, 0.030887644787504713, 0.029009153436691987, 0.06854700672750672, -0.08350481323487613, -0.17868179975387952, 0.2956756243083094, 0.036288230939369115, 0.2605818416246967, 0.02467726991879837, -0.002713145607794147, -0.0672603606767509, -0.008693616448103318, 0.020598343298548743, -0.16490240673817988, 0.12776799406495964, 0.23985259244107596, 0.049530529665450254, 0.1831433017272502, -0.4325783388156976, -0.14762579772643566, 0.07892359624328535, 0.13486615290554863, 0.11684057988403808, -0.031491593925429266, -0.2786316680921508, 0.06121323680410916, -0.13672617417094962, -0.10482553931928816, -0.09828721358706909, 0.043686691400251304, 0.06822129754859599, -0.29750271428742314, 0.0813116445161757, 0.0194690903609929, 0.06815977987079393, -0.0987923459701484, -0.19302564344889972, -0.038498933445884, 0.15364611041732132, 0.066119605550609, 0.00787938599851692, 0.10336720423462491, -0.10795172750062886, -0.11495390642833497, 0.40189932920925675, -0.07255005043047104, -0.13074492006340907, 0.18069452343597298, -0.21392899959880327, -0.14448566427676096, 0.16663329626178547, 0.11201466384255106, 0.12590541168160382, -0.08598245699014072, 0.03209350653341971, 0.013537753701564811, 0.16387156439235523, 0.04487232780070155, 0.06129362236208094, 0.16667815366139013, 0.13747235887816975, -0.014151929016536866, 0.08644691484653214, -0.0952243850067524, -0.11305432217528245, -0.3027201926956574, -0.10061777410917871, -0.14527219978515946, 0.0019016877964964979, -0.09449568921665473, -0.13514500807615973, 0.3883964306763595, 0.14609744739940478, 0.22303034011718062, 0.033388464213792414, 0.2871061515861324, 0.14212630393781833, 0.05274228036720333, 0.04924142748073098, 0.2991387840005614, 0.17194321260211012, 0.08285160516388715, -0.2199041112303911, 0.08881166546295087, 0.014309718944354071] |
707.3587 | A relativistic unitary coupled-cluster study of electric quadrupole
moment and magnetic dipole hyperfine constants of ^{199}Hg^{+} | Searching for an accurate optical clock which can serve as a better time
standard than the present day atomic clock is highly demanding from several
areas of science and technology. Several attempts have been made to built more
accurate clocks with different ion species. In this article we discuss the
electric quadrupole and hyperfine shifts in the $5d^{9}6s^{2}
^{2}D_{5/2}(F=0,m_{F}=0)\leftrightarrow5d^{10}6s ^{2}S_{1/2}(F=2,m_{F}=0)$
clock transition in $ ^{199}Hg^{+}$, one of the most promising candidates for
next generation optical clocks. We have applied Fock-space unitary
coupled-cluster (FSUCC) theory to study the electric quadrupole moment of the
$5d^{9}6s^{2} ^{2}D_{5/2}$ state and magnetic dipole hyperfine constants of
$5d^{9}6s^{2} ^{2}D_{3/2,5/2}$ and $5d^{10}6s^{1} ^{2}S_{1/2}$ states
respectively of $ ^{199}Hg^{+}$. We have also compared our results with
available data. To the best of our knowledge, this is the first time a variant
of coupled-cluster (CC) theories has been applied to study these kinds of
properties of $Hg^{+}$and is the most accurate estimate of these quantities to
date.
| physics.atom-ph physics.chem-ph | searching for an accurate optical clock which can serve as a better time standard than the present day atomic clock is highly demanding from several areas of science and technology several attempts have been made to built more accurate clocks with different ion species in this article we discuss the electric quadrupole and hyperfine shifts in the 5d96s2 2d_52f0m_f0leftrightarrow5d106s 2s_12f2m_f0 clock transition in 199hg one of the most promising candidates for next generation optical clocks we have applied fockspace unitary coupledcluster fsucc theory to study the electric quadrupole moment of the 5d96s2 2d_52 state and magnetic dipole hyperfine constants of 5d96s2 2d_3252 and 5d106s1 2s_12 states respectively of 199hg we have also compared our results with available data to the best of our knowledge this is the first time a variant of coupledcluster cc theories has been applied to study these kinds of properties of hgand is the most accurate estimate of these quantities to date | [['searching', 'for', 'an', 'accurate', 'optical', 'clock', 'which', 'can', 'serve', 'as', 'a', 'better', 'time', 'standard', 'than', 'the', 'present', 'day', 'atomic', 'clock', 'is', 'highly', 'demanding', 'from', 'several', 'areas', 'of', 'science', 'and', 'technology', 'several', 'attempts', 'have', 'been', 'made', 'to', 'built', 'more', 'accurate', 'clocks', 'with', 'different', 'ion', 'species', 'in', 'this', 'article', 'we', 'discuss', 'the', 'electric', 'quadrupole', 'and', 'hyperfine', 'shifts', 'in', 'the', '5d96s2', '2d_52f0m_f0leftrightarrow5d106s', '2s_12f2m_f0', 'clock', 'transition', 'in', '199hg', 'one', 'of', 'the', 'most', 'promising', 'candidates', 'for', 'next', 'generation', 'optical', 'clocks', 'we', 'have', 'applied', 'fockspace', 'unitary', 'coupledcluster', 'fsucc', 'theory', 'to', 'study', 'the', 'electric', 'quadrupole', 'moment', 'of', 'the', '5d96s2', '2d_52', 'state', 'and', 'magnetic', 'dipole', 'hyperfine', 'constants', 'of', '5d96s2', '2d_3252', 'and', '5d106s1', '2s_12', 'states', 'respectively', 'of', '199hg', 'we', 'have', 'also', 'compared', 'our', 'results', 'with', 'available', 'data', 'to', 'the', 'best', 'of', 'our', 'knowledge', 'this', 'is', 'the', 'first', 'time', 'a', 'variant', 'of', 'coupledcluster', 'cc', 'theories', 'has', 'been', 'applied', 'to', 'study', 'these', 'kinds', 'of', 'properties', 'of', 'hgand', 'is', 'the', 'most', 'accurate', 'estimate', 'of', 'these', 'quantities', 'to', 'date']] | [-0.08001800686265928, 0.13915196591489007, -0.006276747456979969, 0.026882755655305002, -0.009407975593742155, -0.11352920900438203, 0.0358080588005921, 0.4200454846098526, -0.17635793393841692, -0.3080312011667854, 0.047096339372813156, -0.27261215926376203, -0.048575629573084096, 0.20814146369152906, 0.036710437023333764, 0.0594269842146865, 0.0283990901924164, 0.07508151083012783, -0.07376229379400118, -0.19295009914538916, 0.23784330140009818, 0.09831922693449437, 0.267458515469947, 0.04311147558237642, 0.03584516134870737, -0.05735695617742195, 0.02582031192060634, -0.0486054311796332, -0.08811876082342636, 0.18313115436255328, 0.2625323265593573, 0.09834275471465971, 0.2280144997076779, -0.4710346847550561, -0.16249249989802128, 0.10759178911866188, 0.11856611425192742, 0.23162809717977753, -0.04421317150142886, -0.32644542775560936, 0.024438030242192134, -0.1872938826112755, -0.11348155147198662, -0.1590416215187469, 0.04553575468379141, 0.05116169154258531, -0.25344414454545605, 0.03995286710756917, -0.019273502133873025, 0.0739310348918353, -0.10727324778066072, -0.1954205294759537, 0.049618487249418405, 0.1442401415871962, 0.0239955196604256, 0.07263581267718398, 0.11060845772913096, -0.06933159735485517, -0.15150688419200245, 0.43422993352723044, -0.09483696595468444, -0.10594100888590298, 0.16427253741718556, -0.15173908329217245, -0.1811125076141529, 0.09295381460375837, 0.13858625742432196, 0.1461239532869778, -0.15680096563358872, 0.03140001484834348, 0.02501424958324985, 0.20857825959753265, 0.08441899193833206, 0.08081158776366651, 0.2019911209315629, 0.16579354706756919, 0.028858362724819522, 0.09172346906758466, -0.1269525913799194, -0.07942955379701214, -0.22345770056982409, -0.13099720726448452, -0.16124573624261118, 0.03780920853196884, -0.033382384186311446, -0.1282890878420397, 0.39914592171075525, 0.19170330655460388, 0.12060438816679259, -0.037820200781979355, 0.3204076873810826, 0.088790491433808, 0.07991872386797177, 0.008539576271536531, 0.3152654663789154, 0.17394384572171415, 0.08285249908846365, -0.23895766062581825, 0.04228657440880671, 0.05360412500823373] |
707.3588 | Magnetic braking in young late-type stars: the effect of polar spots | The concentration of magnetic flux near the poles of rapidly rotating cool
stars has been recently proposed as an alternative mechanism to dynamo
saturation in order to explain the saturation of angular momentum loss. In this
work we study the effect of magnetic surface flux distribution on the coronal
field topology and angular momentum loss rate. We investigate if magnetic flux
concentration towards the pole is a reasonable alternative to dynamo
saturation. We construct a 1D wind model and also apply a 2-D self-similar
analytical model, to evaluate how the surface field distribution affects the
angular momentum loss of the rotating star. From the 1D model we find that, in
a magnetically dominated low corona, the concentrated polar surface field
rapidly expands to regions of low magnetic pressure resulting in a coronal
field with small latitudinal variation. We also find that the angular momentum
loss rate due to a uniform field or a concentrated field with equal total
magnetic flux is very similar. From the 2D wind model we show that there are
several relevant factors to take into account when studying the angular
momentum loss from a star. In particular, we show that the inclusion of force
balance across the field in a wind model is fundamental if realistic
conclusions are to be drawn from the effect of non-uniform surface field
distribution on magnetic braking. This model predicts that a magnetic field
concentrated at high latitudes leads to larger Alfven radii and larger braking
rates than a smoother field distribution. From the results obtained, we argue
that the magnetic surface field distribution towards the pole does not directly
limit the braking efficiency of the wind.
| astro-ph | the concentration of magnetic flux near the poles of rapidly rotating cool stars has been recently proposed as an alternative mechanism to dynamo saturation in order to explain the saturation of angular momentum loss in this work we study the effect of magnetic surface flux distribution on the coronal field topology and angular momentum loss rate we investigate if magnetic flux concentration towards the pole is a reasonable alternative to dynamo saturation we construct a 1d wind model and also apply a 2d selfsimilar analytical model to evaluate how the surface field distribution affects the angular momentum loss of the rotating star from the 1d model we find that in a magnetically dominated low corona the concentrated polar surface field rapidly expands to regions of low magnetic pressure resulting in a coronal field with small latitudinal variation we also find that the angular momentum loss rate due to a uniform field or a concentrated field with equal total magnetic flux is very similar from the 2d wind model we show that there are several relevant factors to take into account when studying the angular momentum loss from a star in particular we show that the inclusion of force balance across the field in a wind model is fundamental if realistic conclusions are to be drawn from the effect of nonuniform surface field distribution on magnetic braking this model predicts that a magnetic field concentrated at high latitudes leads to larger alfven radii and larger braking rates than a smoother field distribution from the results obtained we argue that the magnetic surface field distribution towards the pole does not directly limit the braking efficiency of the wind | [['the', 'concentration', 'of', 'magnetic', 'flux', 'near', 'the', 'poles', 'of', 'rapidly', 'rotating', 'cool', 'stars', 'has', 'been', 'recently', 'proposed', 'as', 'an', 'alternative', 'mechanism', 'to', 'dynamo', 'saturation', 'in', 'order', 'to', 'explain', 'the', 'saturation', 'of', 'angular', 'momentum', 'loss', 'in', 'this', 'work', 'we', 'study', 'the', 'effect', 'of', 'magnetic', 'surface', 'flux', 'distribution', 'on', 'the', 'coronal', 'field', 'topology', 'and', 'angular', 'momentum', 'loss', 'rate', 'we', 'investigate', 'if', 'magnetic', 'flux', 'concentration', 'towards', 'the', 'pole', 'is', 'a', 'reasonable', 'alternative', 'to', 'dynamo', 'saturation', 'we', 'construct', 'a', '1d', 'wind', 'model', 'and', 'also', 'apply', 'a', '2d', 'selfsimilar', 'analytical', 'model', 'to', 'evaluate', 'how', 'the', 'surface', 'field', 'distribution', 'affects', 'the', 'angular', 'momentum', 'loss', 'of', 'the', 'rotating', 'star', 'from', 'the', '1d', 'model', 'we', 'find', 'that', 'in', 'a', 'magnetically', 'dominated', 'low', 'corona', 'the', 'concentrated', 'polar', 'surface', 'field', 'rapidly', 'expands', 'to', 'regions', 'of', 'low', 'magnetic', 'pressure', 'resulting', 'in', 'a', 'coronal', 'field', 'with', 'small', 'latitudinal', 'variation', 'we', 'also', 'find', 'that', 'the', 'angular', 'momentum', 'loss', 'rate', 'due', 'to', 'a', 'uniform', 'field', 'or', 'a', 'concentrated', 'field', 'with', 'equal', 'total', 'magnetic', 'flux', 'is', 'very', 'similar', 'from', 'the', '2d', 'wind', 'model', 'we', 'show', 'that', 'there', 'are', 'several', 'relevant', 'factors', 'to', 'take', 'into', 'account', 'when', 'studying', 'the', 'angular', 'momentum', 'loss', 'from', 'a', 'star', 'in', 'particular', 'we', 'show', 'that', 'the', 'inclusion', 'of', 'force', 'balance', 'across', 'the', 'field', 'in', 'a', 'wind', 'model', 'is', 'fundamental', 'if', 'realistic', 'conclusions', 'are', 'to', 'be', 'drawn', 'from', 'the', 'effect', 'of', 'nonuniform', 'surface', 'field', 'distribution', 'on', 'magnetic', 'braking', 'this', 'model', 'predicts', 'that', 'a', 'magnetic', 'field', 'concentrated', 'at', 'high', 'latitudes', 'leads', 'to', 'larger', 'alfven', 'radii', 'and', 'larger', 'braking', 'rates', 'than', 'a', 'smoother', 'field', 'distribution', 'from', 'the', 'results', 'obtained', 'we', 'argue', 'that', 'the', 'magnetic', 'surface', 'field', 'distribution', 'towards', 'the', 'pole', 'does', 'not', 'directly', 'limit', 'the', 'braking', 'efficiency', 'of', 'the', 'wind']] | [-0.12870877147719695, 0.1836366838429387, -0.07481302331080256, 0.11301694697222969, -0.08382701038963337, -0.04149159320555897, 0.02248933754458119, 0.39083070448343304, -0.22773149045204502, -0.33694049924784136, 0.02965692171402106, -0.22013184428468105, -0.08231819412195245, 0.2049655834579017, -0.04106319933219746, -0.023764953273685947, 0.02791809136186308, 0.019971178011104897, -0.05569687507206412, -0.16467907466837947, 0.3336429423197051, 0.09327059429125402, 0.26570616032678523, 0.053240354268211006, 0.07888339721746203, -0.06856323291034694, 0.033221556990663856, 0.0655138353138919, -0.1395483112891784, 0.059149250000937965, 0.12224404097102798, 0.042455773733124355, 0.22672664536419662, -0.4454471057726313, -0.2618535741644007, 0.05129187269662709, 0.15871829168273785, 0.1059315069730434, -0.0836220225816984, -0.1799408596800303, 0.0611932289439078, -0.1826711974192775, -0.16467571759974395, -0.04495080073694766, 0.03900189505049533, 0.0353389576160133, -0.3055878103098265, 0.10858422170259882, 0.07829276169312821, 0.07289928410107782, -0.12840889635381114, -0.10409330846100667, -0.10155899560693112, 0.08242583860851153, 0.12876557721925116, 0.1270713140109075, 0.1787189498967221, -0.1758979123371872, -0.00964849290397504, 0.3363424663843614, -0.08648945615557065, -0.1662376766325906, 0.158835395819683, -0.2722326714741201, -0.08450270132532856, 0.19113688329167233, 0.2067816658251315, 0.11847316199049786, -0.11133301784260159, 0.026084414092348077, -0.03694160308594397, 0.1584977614980164, 0.04179025465113016, 0.00390475747121525, 0.29767857587126934, 0.13639008610060546, 0.06400669850763338, 0.14859758198397924, -0.1989607881869365, -0.08567882579096688, -0.2344411970656095, -0.12166320238147686, -0.15465801125358575, 0.07357148136915108, -0.089760083930267, -0.16200704712073144, 0.37503192504168575, 0.19067744018621338, 0.22067492783147222, 0.002020762943847449, 0.3275498222860008, 0.1483797029835894, 0.08833157506339467, 0.15065039649261566, 0.288414021402233, 0.18609837473680577, 0.13181125703672675, -0.2678316930187461, 0.02266516409598399, 0.01589540323998401] |
707.3589 | Constraints on the Self-Gravity of Radiation Pressure via Big Bang
Nucleosynthesis | Using standard big-bang nucleosynthesis and present, high-precision
measurements of light element abundances, we place constraints on the
self-gravity of radiation pressure in the early universe. The self-gravity of
pressure is strictly non-Newtonian, and thus the constraints we set are a
direct test of this aspect of general relativity.
| astro-ph | using standard bigbang nucleosynthesis and present highprecision measurements of light element abundances we place constraints on the selfgravity of radiation pressure in the early universe the selfgravity of pressure is strictly nonnewtonian and thus the constraints we set are a direct test of this aspect of general relativity | [['using', 'standard', 'bigbang', 'nucleosynthesis', 'and', 'present', 'highprecision', 'measurements', 'of', 'light', 'element', 'abundances', 'we', 'place', 'constraints', 'on', 'the', 'selfgravity', 'of', 'radiation', 'pressure', 'in', 'the', 'early', 'universe', 'the', 'selfgravity', 'of', 'pressure', 'is', 'strictly', 'nonnewtonian', 'and', 'thus', 'the', 'constraints', 'we', 'set', 'are', 'a', 'direct', 'test', 'of', 'this', 'aspect', 'of', 'general', 'relativity']] | [-0.1254954819548099, 0.12962766721223792, -0.1373667029935556, 0.04040571792090001, -0.11484674154780805, -0.07712436466439006, 0.028770654622348957, 0.2778936189036661, -0.22644701328439018, -0.3227562509321918, 0.07255166708637262, -0.24614596064202487, 0.005870330089237541, 0.18889891092355052, -0.0076218085596337914, 0.0476708387529167, 0.08778741045777376, -0.027896887545163434, -0.05297839879252327, -0.24680550404203436, 0.36226508925513673, 0.10992116576138262, 0.15209658903768286, 0.04406520177144557, 0.031401157670188695, -0.10832808450019608, -0.0777185734671851, 0.05753376829670742, -0.19402107336888244, 0.04931815943564288, 0.15404843684033645, 0.19490426164702512, 0.21191233194743594, -0.48793119630621123, -0.26259822344097, 0.10654688246237735, 0.0662111113294183, 0.15608646074542776, -0.12609347597511564, -0.254446828039363, 0.021693215880077332, -0.1594000709349833, -0.08216126056019372, -0.008492868839918325, 0.017547705909237266, -0.011821679732141396, -0.28805358632234856, 0.11089673574315384, 0.04212814418133348, 0.05302640649218423, -0.0985600935042991, -0.09645900967977165, -0.007428130227102277, 0.04822230138233863, 0.07503498762283319, -0.022026380630753312, 0.2232594805342766, -0.12334125641791616, 0.016119128490875784, 0.5038362696456412, -0.10956353647634387, -0.11215915206897382, 0.1703284316851447, -0.21906494999226803, -0.177141724008834, 0.07103004524833523, 0.17729858512757346, 0.14589481773631027, -0.12650721430933723, 0.10729425961956925, 0.012564268884792304, 0.14214284679231545, 0.08218688126847458, -0.00735868504246658, 0.28805873861225945, 0.20098552654962987, -0.005145563217714273, 0.030956155523502577, -0.08206951445026789, -0.05638291951133093, -0.36416990651438635, -0.1861844317172654, -0.08169895837393899, 0.04457063522810737, -0.15845512875845694, -0.14586771090398543, 0.3128592159094599, 0.14766852115280926, 0.11223950140022983, 0.04465755197452381, 0.39208798948675394, 0.0607143836632531, -0.006382494466379285, 0.039834931778993145, 0.36815930002679426, 0.17896754993125796, 0.09319109194135915, -0.28137068715295754, 0.09035772774950601, 0.05252837348962203] |
707.359 | Trigonometric Series via Laplace Transforms | The author's method (math-ph/9804010) that uses the Laplace transform to find
exact values for a large class of convergent series is extended to
trigonometric series.
| math.CA | the authors method mathph9804010 that uses the laplace transform to find exact values for a large class of convergent series is extended to trigonometric series | [['the', 'authors', 'method', 'mathph9804010', 'that', 'uses', 'the', 'laplace', 'transform', 'to', 'find', 'exact', 'values', 'for', 'a', 'large', 'class', 'of', 'convergent', 'series', 'is', 'extended', 'to', 'trigonometric', 'series']] | [-0.06435473449528217, -0.038493643747642636, -0.1565914291422814, 0.08654172565729823, -0.17011129258510968, -0.06560536332350846, 0.01732268762983343, 0.36938728609432775, -0.30327335582114756, -0.24097700789570808, 0.11708847886378256, -0.25191518540183705, -0.1545920433709398, 0.29090713810486096, -0.03295560510984311, 0.10333265086289127, 0.05222548901413878, 0.02156658610329032, -0.13224821340797158, -0.259541020107766, 0.2618253498027722, -0.024011189855324726, 0.2264191509845356, -0.0893072682665661, 0.10744624647001426, -0.0295064984044681, -0.0812690518796444, -0.034757015334131815, -0.09738204512935529, 0.16422119197280458, 0.23496138469393676, 0.041730880310448505, 0.301735461767142, -0.3284184615282963, -0.14517853502184153, 0.09291438597332065, 0.14418281645824513, 0.07434760654966037, -0.004710715962573886, -0.2649400057659174, 0.08786230670132984, -0.18447189428843558, -0.18532675446476787, -0.18783520542395613, 0.09909383510239422, 0.08266352800031503, -0.3942491376462082, 0.09804817095088462, -0.004564674027885, 0.015942109826331336, -0.044454803612704076, -0.14400727732572705, 0.13475169439334422, 0.08628904875755931, 0.06005141165223904, 0.0030617135732124248, 0.02050059917382896, 0.006992842458809416, -0.0562982641470929, 0.30588598824882257, -0.1313955094665289, -0.2236768833051125, 0.1382744871856024, -0.18391574954148382, -0.2294661431418111, 0.2006474630907178, 0.1304159035983806, 0.18625361775048077, -0.12733996085201701, 0.10266938295292978, -0.06737477297428995, 0.14879429324840507, 0.08193675180276234, -0.06022093249096846, 0.12388475964932393, 0.04939750199749445, 0.0801667277701199, 0.17411568330135196, -0.052461389529829226, -0.12288463146736224, -0.3018200558920701, -0.19627485099287392, -0.2861992542942365, 0.0032105191300312677, -0.04450327610053743, -0.2530786571248124, 0.39783340304469067, 0.09479272408255686, 0.16933683352544904, 0.1442843945308899, 0.21710849539764845, 0.22226630554844937, 0.08236626186408103, 0.0628940775253189, 0.10318659709688897, 0.10953695233911276, 0.09234064084012061, -0.18586143655314422, -0.011700566695556821, 0.2227180851623416] |
707.3591 | New results on the Roper resonance and the P_{11} partial wave | Properties of the Roper resonance, the first scalar excitation of the
nucleon, are determined. Pole positions and residues of the $P_{11}$ partial
wave are studied in a combined analysis of pion- and photo-induced reactions.
We find the Roper pole at $\{(1371\pm7)-i(92\pm10)\}$ MeV and an elasticity of
$0.61\pm 0.03$. The largest decay coupling is found for the $N\sigma$
($\sigma=(\pi\pi)$-$S$-wave). The analysis is based on new data on $\gamma p\to
p\pi^0\pi^0$ for photons in the energy range from the two-pion threshold to 820
MeV from TAPS at Mainz and from 0.4 to 1.3 GeV from Crystal Barrel at Bonn and
includes further data from other experiments. The partial wave analysis
excludes the possibility that the Roper resonance is split into two states with
different partial decay widths.
| hep-ph | properties of the roper resonance the first scalar excitation of the nucleon are determined pole positions and residues of the p_11 partial wave are studied in a combined analysis of pion and photoinduced reactions we find the roper pole at 1371pm7i92pm10 mev and an elasticity of 061pm 003 the largest decay coupling is found for the nsigma sigmapipiswave the analysis is based on new data on gamma pto ppi0pi0 for photons in the energy range from the twopion threshold to 820 mev from taps at mainz and from 04 to 13 gev from crystal barrel at bonn and includes further data from other experiments the partial wave analysis excludes the possibility that the roper resonance is split into two states with different partial decay widths | [['properties', 'of', 'the', 'roper', 'resonance', 'the', 'first', 'scalar', 'excitation', 'of', 'the', 'nucleon', 'are', 'determined', 'pole', 'positions', 'and', 'residues', 'of', 'the', 'p_11', 'partial', 'wave', 'are', 'studied', 'in', 'a', 'combined', 'analysis', 'of', 'pion', 'and', 'photoinduced', 'reactions', 'we', 'find', 'the', 'roper', 'pole', 'at', '1371pm7i92pm10', 'mev', 'and', 'an', 'elasticity', 'of', '061pm', '003', 'the', 'largest', 'decay', 'coupling', 'is', 'found', 'for', 'the', 'nsigma', 'sigmapipiswave', 'the', 'analysis', 'is', 'based', 'on', 'new', 'data', 'on', 'gamma', 'pto', 'ppi0pi0', 'for', 'photons', 'in', 'the', 'energy', 'range', 'from', 'the', 'twopion', 'threshold', 'to', '820', 'mev', 'from', 'taps', 'at', 'mainz', 'and', 'from', '04', 'to', '13', 'gev', 'from', 'crystal', 'barrel', 'at', 'bonn', 'and', 'includes', 'further', 'data', 'from', 'other', 'experiments', 'the', 'partial', 'wave', 'analysis', 'excludes', 'the', 'possibility', 'that', 'the', 'roper', 'resonance', 'is', 'split', 'into', 'two', 'states', 'with', 'different', 'partial', 'decay', 'widths']] | [-0.07168456654980536, 0.18814737604643744, -0.0650650708542425, 0.07892116408215881, -0.057414662401945274, -0.06741967324424929, 0.06315995146315999, 0.3368587081843033, -0.19714469248542515, -0.2600828768700604, -0.01313233283363525, -0.3885100138547823, -0.007937443313923308, 0.16704246390429212, 0.15047418737284293, 0.0707673741940161, 0.06783865326144771, 0.05445962362521427, -0.033789474816190275, -0.08461013503705825, 0.35727979201914334, 0.034776405560049586, 0.22824739705680347, 0.1748860589857024, 0.05506100705673358, 0.0345013802927896, 0.01646836674431475, -0.14202215332477316, -0.16413071698054144, 0.04172781081557864, 0.2424531728559272, 0.04498113892457592, 0.16042666265937855, -0.34310983798307615, -0.1116962236072111, 0.030852423113869216, 0.14522539501691736, 0.0926439512589174, -0.001306697213265106, -0.3451932096111823, 0.11054798139910388, -0.12880874676554183, -0.12830403854036931, -0.0168679818071849, -0.009360698010106154, -0.005162984973228559, -0.30976981189616815, 0.11960863574536715, -0.049456025379126876, 0.06109818492682908, -0.10368873451351816, -0.27922242335270997, -0.04768438443041793, 0.05600538275893626, 0.08310196245263322, 0.05648974938378707, 0.15571088451850493, -0.0953858147367714, -0.10137056041134113, 0.3662548390618427, -0.045897619556484186, -0.11338136996009114, 0.08935567285161375, -0.20791421239302169, -0.12239837610613312, 0.25864415976589894, 0.1779672464434383, 0.05096943813141405, -0.16852921989511668, 0.0570351905052217, -0.003499060997699683, 0.23857064686272655, 0.15063332695688114, 0.02688643236727855, 0.16496755356892823, 0.16902376183619103, -0.005856484258017405, 0.0796772654899926, -0.16263761461288403, -0.06367725522325533, -0.34529302762897035, -0.058489538380891326, -0.11883332918405654, 0.048383554190773954, -0.027679131609672582, -0.05619041128008346, 0.4004786081718114, 0.026715460786126494, 0.23425059623985997, -0.01570417447681955, 0.25807984306607623, 0.11196281560374863, 0.0798458762398762, 0.03674658683575387, 0.3190418005262206, 0.18544318750349245, 0.13470563361406085, -0.2624500295226803, -0.02825487108817854, -0.02100288408346535] |
707.3592 | N* and Delta* decays into N pi0 pi0 | Decays of baryon resonances in the second and the third resonance region into
N pi0 pi0 are studied by photoproduction of two neutral pions off protons.
Partial decay widths of N* and Delta* resonances decaying into Delta(1232) pi,
N(\pi\pi)_{S}, N(1440)P_{11} pi, and N(1520)D_{13} pi are determined in a
partial wave analysis of this data, and data from other reactions. Several
partial decay widths were not known before. Interesting decay patterns are
observed which are not even qualitatively reproduced by quark model
calculations. In the second resonance region, decays into Delta(1232) pi
dominate clearly. The N(\pi\pi)_{S}-wave provides a significant contribution to
the cross section, especially in the third resonance region. The P_{13}(1720)
properties found here are at clear variance to PDG values.
| hep-ph | decays of baryon resonances in the second and the third resonance region into n pi0 pi0 are studied by photoproduction of two neutral pions off protons partial decay widths of n and delta resonances decaying into delta1232 pi npipi_s n1440p_11 pi and n1520d_13 pi are determined in a partial wave analysis of this data and data from other reactions several partial decay widths were not known before interesting decay patterns are observed which are not even qualitatively reproduced by quark model calculations in the second resonance region decays into delta1232 pi dominate clearly the npipi_swave provides a significant contribution to the cross section especially in the third resonance region the p_131720 properties found here are at clear variance to pdg values | [['decays', 'of', 'baryon', 'resonances', 'in', 'the', 'second', 'and', 'the', 'third', 'resonance', 'region', 'into', 'n', 'pi0', 'pi0', 'are', 'studied', 'by', 'photoproduction', 'of', 'two', 'neutral', 'pions', 'off', 'protons', 'partial', 'decay', 'widths', 'of', 'n', 'and', 'delta', 'resonances', 'decaying', 'into', 'delta1232', 'pi', 'npipi_s', 'n1440p_11', 'pi', 'and', 'n1520d_13', 'pi', 'are', 'determined', 'in', 'a', 'partial', 'wave', 'analysis', 'of', 'this', 'data', 'and', 'data', 'from', 'other', 'reactions', 'several', 'partial', 'decay', 'widths', 'were', 'not', 'known', 'before', 'interesting', 'decay', 'patterns', 'are', 'observed', 'which', 'are', 'not', 'even', 'qualitatively', 'reproduced', 'by', 'quark', 'model', 'calculations', 'in', 'the', 'second', 'resonance', 'region', 'decays', 'into', 'delta1232', 'pi', 'dominate', 'clearly', 'the', 'npipi_swave', 'provides', 'a', 'significant', 'contribution', 'to', 'the', 'cross', 'section', 'especially', 'in', 'the', 'third', 'resonance', 'region', 'the', 'p_131720', 'properties', 'found', 'here', 'are', 'at', 'clear', 'variance', 'to', 'pdg', 'values']] | [-0.0927464711135488, 0.24974550753870994, -0.06418856309419654, 0.14656997081029283, -0.045548909369214366, -0.1357009497181583, 0.05203604374663951, 0.3098081438684789, -0.21170551347240077, -0.23380239601364405, -0.07572949806643071, -0.40367536606783627, -0.008901374817614546, 0.13447282472312325, 0.1408814338768124, 0.056599211076028964, 0.07177967510084395, 0.05895277597949285, 0.010099328512388492, -0.14658593681265264, 0.284013367477147, -0.02795220770239204, 0.1737704319975284, 0.12050568015009415, -0.0633252439188904, -0.016514328367100293, -0.02995914513120005, -0.0780795842737836, -0.14446942996578055, 0.014319495114051745, 0.2580873447234601, 0.061012817503680955, 0.13577347559885694, -0.3693486047486047, -0.09845299199967011, 0.09827636608936112, 0.26279312125681076, 0.08591243670372871, -0.027169574646889662, -0.3737573262554507, 0.10356637850763793, -0.12545413285212106, -0.09656889393202718, -0.09685960131063431, 0.037412099647844414, -0.04481648258911837, -0.3065868354159869, 0.09845932526905246, 0.0021024084016054616, 0.04793654721343504, -0.03628397389205501, -0.26855308308946985, -0.04390485585909806, 0.05553773259978835, 0.1172154610453197, 0.03414821398968832, 0.15882975001185506, -0.1100865695850548, -0.11276733693705887, 0.3527135746944852, -0.046313438008875905, -0.15521030940830574, 0.05927245658548439, -0.2637260854400757, -0.12066194198892585, 0.30051715932238626, 0.18520589484324476, 0.05647923616778512, -0.18024758146214886, 0.06463442244097403, -0.019076263445831576, 0.19467537821575748, 0.12101209042750362, 0.0587865791416594, 0.13224145329064307, 0.14311783245819457, -0.0782253257773754, 0.047844261541950886, -0.1114965715766454, -0.09537806261737808, -0.3629211162083915, -0.07333266883090671, -0.04272579635736071, 0.03369368014217867, 0.012182176554088379, -0.06571998458919155, 0.3564918509551457, -0.021207867816341024, 0.3294348696465878, -0.02918122974987447, 0.33039454971792315, 0.12029753667214385, 0.06629485981695417, 0.05176726593283795, 0.3063912127213944, 0.22946581450103148, 0.12276309012521465, -0.2554154441082467, 0.06280606839328441, -0.018272917197250268] |
707.3593 | Finite-Temperature Collective Dynamics of a Fermi Gas in the BEC-BCS
Crossover | We report on experimental studies on the collective behavior of a strongly
interacting Fermi gas with tunable interactions and variable temperature. A
scissors mode excitation in an elliptical trap is used to characterize the
dynamics of the quantum gas in terms of hydrodynamic or near-collisionless
behavior. We obtain a crossover phase diagram for collisional properties,
showing a large region where a non-superfluid strongly interacting gas shows
hydrodynamic behavior. In a narrow interaction regime on the BCS side of the
crossover, we find a novel temperature-dependent damping peak, suggesting a
relation to the superfluid phase transition.
| cond-mat.other | we report on experimental studies on the collective behavior of a strongly interacting fermi gas with tunable interactions and variable temperature a scissors mode excitation in an elliptical trap is used to characterize the dynamics of the quantum gas in terms of hydrodynamic or nearcollisionless behavior we obtain a crossover phase diagram for collisional properties showing a large region where a nonsuperfluid strongly interacting gas shows hydrodynamic behavior in a narrow interaction regime on the bcs side of the crossover we find a novel temperaturedependent damping peak suggesting a relation to the superfluid phase transition | [['we', 'report', 'on', 'experimental', 'studies', 'on', 'the', 'collective', 'behavior', 'of', 'a', 'strongly', 'interacting', 'fermi', 'gas', 'with', 'tunable', 'interactions', 'and', 'variable', 'temperature', 'a', 'scissors', 'mode', 'excitation', 'in', 'an', 'elliptical', 'trap', 'is', 'used', 'to', 'characterize', 'the', 'dynamics', 'of', 'the', 'quantum', 'gas', 'in', 'terms', 'of', 'hydrodynamic', 'or', 'nearcollisionless', 'behavior', 'we', 'obtain', 'a', 'crossover', 'phase', 'diagram', 'for', 'collisional', 'properties', 'showing', 'a', 'large', 'region', 'where', 'a', 'nonsuperfluid', 'strongly', 'interacting', 'gas', 'shows', 'hydrodynamic', 'behavior', 'in', 'a', 'narrow', 'interaction', 'regime', 'on', 'the', 'bcs', 'side', 'of', 'the', 'crossover', 'we', 'find', 'a', 'novel', 'temperaturedependent', 'damping', 'peak', 'suggesting', 'a', 'relation', 'to', 'the', 'superfluid', 'phase', 'transition']] | [-0.18903671395457153, 0.21364394296533454, -0.13867120526327276, 0.03928550978889689, -0.030638738431313886, -0.14612405353840044, 0.08465309449758857, 0.33432490087332245, -0.22910567590015682, -0.22651661849243843, -0.005153894702472942, -0.3245931095344589, -0.11589945734111949, 0.16573339490408195, 0.06628642545268683, -0.010062220991846728, -0.002744584312127467, 0.0024671615448166083, -0.08770348742960933, -0.13990485977302206, 0.32126000448764164, 0.01900172795718932, 0.29959029023674255, 0.07714944130597398, 0.04866401573266596, -0.03423452841989855, 0.08939994598164204, 0.023452452641535313, -0.1927747892493263, -0.00518644756657329, 0.20791193246507048, -0.08236508365185495, 0.2218478129423679, -0.37611883925521705, -0.2390693508873773, 0.03220799438249161, 0.20724463068503648, 0.1408069072479501, -0.07681856024391116, -0.26873322162143093, -0.08713026234800829, -0.20528418765938344, -0.1701683086551171, -0.06313851639192472, 0.007382217011949483, 0.030353807921006167, -0.27638067356608015, 0.13685421681804386, 0.05277430706043193, 0.09530177516268289, -0.07781906197828418, -0.02741217348684973, 0.028310118193559823, 0.04207204636731284, -0.03003987418041822, 0.010173527637813637, 0.2062268363500133, -0.19359078192202164, -0.02719959669667197, 0.3854687033181495, -0.12960693663223943, -0.09143397220450038, 0.26668926565709744, -0.23010777215413908, -0.0863824357944937, 0.18069243688195785, 0.1703656511777576, 0.08111381725447768, -0.10859709590713078, 0.0035483929312520443, -0.04175084301250729, 0.20399610611035468, -0.04029460758604902, 0.055920822441855325, 0.27509551972864155, 0.22959638190792597, -0.011756711639463902, 0.2075114482623634, -0.10988623049466852, -0.12738763097118824, -0.25153117197902597, -0.12232964314480728, -0.18688439870435258, 0.02165707680793043, -0.037735983791130724, -0.2020598506713484, 0.39066442039775406, 0.10041418885118625, 0.2563760550197293, 0.002771807096383356, 0.24097244226017056, 0.13649947262131312, 0.013519834073141534, 0.05491790092708741, 0.29811796900677556, 0.14853632745352832, 0.09639497330669869, -0.35444921358647025, 0.03365831878630722, 0.03943240310020864] |
707.3594 | On the spectral functions of scalar mesons | In this work we study the spectral functions of scalar mesons in one- and
two-channel cases. When the propagators satisfy the K\"allen-Lehman
representation a normalized spectral function is obtained, allowing to take
into account finite-width effects in the evaluation of decay rates. In the
one-channel case, suitable to the light sigma and k mesons, the spectral
function can deviate consistently from a Breit-Wigner shape. In the two-channel
case with one subthreshold channel the evaluated spectral function is well
approximated by a Flatte' distribution; when applying the study to the a_0(980)
and f_0(980) mesons the tree-level forbidden KK decay is analysed.
| hep-ph | in this work we study the spectral functions of scalar mesons in one and twochannel cases when the propagators satisfy the kallenlehman representation a normalized spectral function is obtained allowing to take into account finitewidth effects in the evaluation of decay rates in the onechannel case suitable to the light sigma and k mesons the spectral function can deviate consistently from a breitwigner shape in the twochannel case with one subthreshold channel the evaluated spectral function is well approximated by a flatte distribution when applying the study to the a_0980 and f_0980 mesons the treelevel forbidden kk decay is analysed | [['in', 'this', 'work', 'we', 'study', 'the', 'spectral', 'functions', 'of', 'scalar', 'mesons', 'in', 'one', 'and', 'twochannel', 'cases', 'when', 'the', 'propagators', 'satisfy', 'the', 'kallenlehman', 'representation', 'a', 'normalized', 'spectral', 'function', 'is', 'obtained', 'allowing', 'to', 'take', 'into', 'account', 'finitewidth', 'effects', 'in', 'the', 'evaluation', 'of', 'decay', 'rates', 'in', 'the', 'onechannel', 'case', 'suitable', 'to', 'the', 'light', 'sigma', 'and', 'k', 'mesons', 'the', 'spectral', 'function', 'can', 'deviate', 'consistently', 'from', 'a', 'breitwigner', 'shape', 'in', 'the', 'twochannel', 'case', 'with', 'one', 'subthreshold', 'channel', 'the', 'evaluated', 'spectral', 'function', 'is', 'well', 'approximated', 'by', 'a', 'flatte', 'distribution', 'when', 'applying', 'the', 'study', 'to', 'the', 'a_0980', 'and', 'f_0980', 'mesons', 'the', 'treelevel', 'forbidden', 'kk', 'decay', 'is', 'analysed']] | [-0.06625423676334322, 0.134671759349294, -0.13701217083260417, 0.1590830792230554, -0.043069831249304115, -0.1740381654771045, 0.038130354541353884, 0.3479096117801964, -0.21641714710742235, -0.20416170922107996, -0.03308277889736928, -0.29011025121202694, -0.09004705293104052, 0.12827988707460464, 0.038203861517831686, 0.08859016369562596, 0.05347786538361106, 0.04508538221940398, -0.06582833545631729, -0.1695816827658564, 0.34310537491226567, -0.009099279223009944, 0.21454823932610453, 0.10256974123418332, -0.028657282562926413, 0.07846663084812462, -0.0057185191614553335, -0.05328844627469152, -0.11995079657062888, 0.03475381726399064, 0.21158161979168655, 0.0760725892148912, 0.15661662966478615, -0.3282411196175963, -0.1961245390959084, 0.1379041372053325, 0.2006365362741053, 0.08139107062947006, 0.039588921116665, -0.3309974619536661, 0.10624102359637617, -0.1399520174227655, -0.11372099772561342, -0.06696110107470304, -0.021110956189222634, -0.03804475563112646, -0.349345278730616, 0.06540009869146161, -0.0107062526314985, 0.009858725294470787, -0.057626572977605976, -0.20826366944238545, -0.011412941764574499, 0.08393672990903724, 0.10638413712382316, 0.044983014513272794, 0.14716711572138594, -0.1524818470538594, -0.07114780419622548, 0.38033038888126613, -0.13752011655829846, -0.23565084882313386, 0.06655438056157437, -0.18922409035731108, -0.06759900749195367, 0.1578794982843101, 0.1575912398379296, 0.08633481613360346, -0.17869132051389897, 0.1286360916105332, -0.029673946001566948, 0.1615952931018546, 0.0908136044559069, 0.07365065464749933, 0.1474051017127931, 0.12882651121821254, -0.06410500840633176, 0.16940247791819274, -0.0562171944975853, -0.09612772737629711, -0.3372900864854455, -0.09170038620941341, -0.14312269659945742, 0.053918772081378845, -0.08451473615554278, -0.11664656233973801, 0.4493486324744299, 0.026445468380115925, 0.2748519112449139, 0.05254245019517839, 0.31969950564205646, 0.21209003549069166, 0.06890157112851739, 0.07385550029110163, 0.2538134811026975, 0.2078716095816344, 0.10601102186366916, -0.278758679816965, -0.01668334165820852, 0.031039580749347807] |
707.3595 | The Noncommutative Standard Model at O(theta^2) | We derive the most general Seiberg-Witten maps for noncommutative gauge
theories in second order of the noncommutative parameter theta. Our results
reveal the existence of more ambiguities than previously known. In particular,
we demonstrate that some of these ambiguities enter observables like scattering
cross sections and enlarge the parameter space of the noncommutative standard
model beyond O(theta).
| hep-ph | we derive the most general seibergwitten maps for noncommutative gauge theories in second order of the noncommutative parameter theta our results reveal the existence of more ambiguities than previously known in particular we demonstrate that some of these ambiguities enter observables like scattering cross sections and enlarge the parameter space of the noncommutative standard model beyond otheta | [['we', 'derive', 'the', 'most', 'general', 'seibergwitten', 'maps', 'for', 'noncommutative', 'gauge', 'theories', 'in', 'second', 'order', 'of', 'the', 'noncommutative', 'parameter', 'theta', 'our', 'results', 'reveal', 'the', 'existence', 'of', 'more', 'ambiguities', 'than', 'previously', 'known', 'in', 'particular', 'we', 'demonstrate', 'that', 'some', 'of', 'these', 'ambiguities', 'enter', 'observables', 'like', 'scattering', 'cross', 'sections', 'and', 'enlarge', 'the', 'parameter', 'space', 'of', 'the', 'noncommutative', 'standard', 'model', 'beyond', 'otheta']] | [-0.08644228538277705, 0.11705004198378638, -0.06441135302578148, 0.1443070120325214, -0.09792466157753217, -0.11114645888211958, -0.015541760373468461, 0.27964814414123174, -0.24109917606856152, -0.2735656488098596, 0.050995031629051814, -0.2614838937624243, -0.17342877629817577, 0.21126490589558033, -0.06088983738108685, 0.05170633332812015, -0.014966443899953575, 0.0551035506609958, -0.16682148765233396, -0.2564805105144491, 0.3931046446393195, 0.025035645853597344, 0.16100190884613416, 0.04608602913325293, 0.056471130394033696, 0.04864179255571543, -0.07310151573377273, -0.013985276868129802, -0.18755363714291506, 0.10349162091223295, 0.24316920099877998, 0.06082765758037567, 0.1303342269164747, -0.38299796272788134, -0.23351377745469412, 0.11620593897941146, 0.13085467883042598, 0.11526731939234755, 0.007414217967603339, -0.3020101404961264, 0.01706215010531116, -0.17472373427855864, -0.14428503921851843, -0.14142171263269948, -0.030141759737345734, -0.021599198854936844, -0.2396804687746784, 0.0632058833521513, 0.049777786263771225, 0.009099932567200117, -0.057890540597502864, -0.12596805231735567, -0.03319519717785481, 0.09552560401100077, 0.07496934298021522, 0.027793803276788247, 0.10538015052218709, -0.15244133520479264, -0.14155342719076494, 0.3810991788969228, -0.0384140215201912, -0.2258774389333108, 0.11576216622141369, -0.2584636228387816, -0.21737399215711967, 0.11458757960874784, 0.11519721328493274, 0.1831419266338599, -0.08190862401470281, 0.18152052827338738, -0.05988372426087919, 0.16084724736783915, 0.10532699041722114, 0.0946608890356545, 0.13431153167039156, 0.08446907524525989, 0.0461299538024162, 0.09856562130561654, -0.08125594513196695, -0.17718571498213956, -0.4221683855478962, -0.15128280814704403, -0.04198116397387103, 0.03551966689216594, -0.17051925603274803, -0.15307260031828232, 0.3498062531202378, 0.2467715861684267, 0.2203581533476449, 0.06859831150882599, 0.23460464138872594, 0.11615232780898448, 0.08767687637162835, 0.0015428465496944753, 0.2976267844455913, 0.14727136603834337, 0.045609790227261554, -0.16081209386455858, -0.02532418587718878, 0.11126366296881124] |
707.3596 | Baryon resonances and polarization transfer in hyperon photoproduction | A partial wave analysis is presented of data on photoproduction of hyperons
including single and double polarization observables. The large spin transfer
probability reported by the CLAS collaboration can be successfully described
with an isobar partial wave analysis.
| hep-ph | a partial wave analysis is presented of data on photoproduction of hyperons including single and double polarization observables the large spin transfer probability reported by the clas collaboration can be successfully described with an isobar partial wave analysis | [['a', 'partial', 'wave', 'analysis', 'is', 'presented', 'of', 'data', 'on', 'photoproduction', 'of', 'hyperons', 'including', 'single', 'and', 'double', 'polarization', 'observables', 'the', 'large', 'spin', 'transfer', 'probability', 'reported', 'by', 'the', 'clas', 'collaboration', 'can', 'be', 'successfully', 'described', 'with', 'an', 'isobar', 'partial', 'wave', 'analysis']] | [-0.10999333694895827, 0.1742580593475539, -0.07275517706416156, 0.059366667070303504, -0.09201641689593855, -0.07758168276938561, -0.012492555928857703, 0.2868031589804511, -0.19053448746471027, -0.26036507773556206, -0.011973028904513308, -0.35841084683412, -0.04377336358945621, 0.1832328690706115, 0.11912043723522832, 0.17881706610665118, 0.11749474542509568, 0.022894061709705153, -0.03384516679828888, -0.13290386745326319, 0.3752542793946831, 0.08059667582672678, 0.27323585449668925, 0.09004137988545392, 0.08047226302043878, 0.1129410566124869, -0.08402299253564131, -0.0008685485410847162, -0.08659522424108888, 0.02981625561063227, 0.3171758418412585, 0.14120955983637368, 0.084385545728238, -0.4066093041022357, -0.21167011527148516, 0.02325242186749452, 0.12434609217177096, 0.16154296196212894, -0.06231875001072982, -0.414450015676649, 0.035037889267857135, -0.24539738016105012, -0.13372524270150615, -0.13387636097736264, 0.008126633345933729, 0.05002099255982198, -0.3100276683506213, 0.043159170468386854, -0.026627979792752547, 0.04078181817098275, -0.021316344714968613, -0.22387888934463263, -0.06028836181289271, 0.016961115057040985, 0.028800254142353016, 0.1176627844106406, 0.11911045157007481, -0.10748078424091402, -0.20766201899632028, 0.3187441217075837, -0.048703085680149104, -0.22719200867179193, 0.048718174804602506, -0.25109595514980976, -0.12375089962427553, 0.1803367033992943, 0.19157182427711392, 0.07789223794335205, -0.20959860063157976, 0.03446979989702844, -0.06047644716071725, 0.24043301649783788, 0.10275362319263973, -0.006244631239065998, 0.1532766438138328, 0.23247523618077762, -0.06976138601863854, 0.03866170559654405, -0.14797536378098716, -0.09061963817006663, -0.3163498648883481, -0.06892875604650103, -0.12097947917094357, 0.07404937516318903, -0.026997456309848195, -0.061509607751902784, 0.3740076652335885, 0.004759333611122872, 0.23366527666190737, -0.04632034691932954, 0.3070439255159152, 0.17912082901028425, 0.051565118232055715, 0.003515084929715254, 0.26038200486647456, 0.20796628754684016, 0.13553928200302548, -0.2751821142400762, 0.05899639893323183, -0.06349492430883019] |
707.3597 | Exceptional representations of a double quiver of type A, and Richardson
elements in seaweed Lie algebras | In this paper, we study the set of $\Delta$-filtered modules of
quasi-hereditary algebras arising from quotients of the double of quivers of
type $A$. Our main result is that for any fixed $\Delta$-dimension vector,
there is a unique (up to isomorphism) exceptional $\Delta$-filtered module. We
then apply this result to show that there is always an open adjoint orbit in
the nilpotent radical of a seaweed Lie algebra in $\mathrm{gl}_{n}(\field)$,
thus answering positively in this $\mathrm{gl}_{n}(\field)$ case to a question
raised independently by Michel Duflo and Dmitri Panyushev. An example of a
seaweed Lie algebra in a simple Lie algebra of type $E_{8}$ not admitting an
open orbit in its nilpotent radical is given.
| math.RT | in this paper we study the set of deltafiltered modules of quasihereditary algebras arising from quotients of the double of quivers of type a our main result is that for any fixed deltadimension vector there is a unique up to isomorphism exceptional deltafiltered module we then apply this result to show that there is always an open adjoint orbit in the nilpotent radical of a seaweed lie algebra in mathrmgl_nfield thus answering positively in this mathrmgl_nfield case to a question raised independently by michel duflo and dmitri panyushev an example of a seaweed lie algebra in a simple lie algebra of type e_8 not admitting an open orbit in its nilpotent radical is given | [['in', 'this', 'paper', 'we', 'study', 'the', 'set', 'of', 'deltafiltered', 'modules', 'of', 'quasihereditary', 'algebras', 'arising', 'from', 'quotients', 'of', 'the', 'double', 'of', 'quivers', 'of', 'type', 'a', 'our', 'main', 'result', 'is', 'that', 'for', 'any', 'fixed', 'deltadimension', 'vector', 'there', 'is', 'a', 'unique', 'up', 'to', 'isomorphism', 'exceptional', 'deltafiltered', 'module', 'we', 'then', 'apply', 'this', 'result', 'to', 'show', 'that', 'there', 'is', 'always', 'an', 'open', 'adjoint', 'orbit', 'in', 'the', 'nilpotent', 'radical', 'of', 'a', 'seaweed', 'lie', 'algebra', 'in', 'mathrmgl_nfield', 'thus', 'answering', 'positively', 'in', 'this', 'mathrmgl_nfield', 'case', 'to', 'a', 'question', 'raised', 'independently', 'by', 'michel', 'duflo', 'and', 'dmitri', 'panyushev', 'an', 'example', 'of', 'a', 'seaweed', 'lie', 'algebra', 'in', 'a', 'simple', 'lie', 'algebra', 'of', 'type', 'e_8', 'not', 'admitting', 'an', 'open', 'orbit', 'in', 'its', 'nilpotent', 'radical', 'is', 'given']] | [-0.1657512109718277, 0.054874305188973634, -0.04489319676888356, 0.030027612994492123, -0.11293064822392487, -0.15472198170735627, 0.0012006943904887045, 0.35937768032958917, -0.3718844417016953, -0.17600731262601577, 0.12301910274005537, -0.20429630340118934, -0.1520754258139982, 0.21204738745986074, -0.20258150764044608, -0.09989352045247231, 0.09882636497485207, 0.1275871964003723, -0.06814071207584159, -0.2977640677478399, 0.42623536939825024, 0.007123402967998707, 0.16297707164047603, 0.05280918028071389, 0.1278931927565183, 0.011601004932025398, 0.012308784047359819, -0.034199784226665225, -0.13384467868938274, 0.12759140753900414, 0.3309299815718823, 0.09620287945611519, 0.23001126440165634, -0.292104174450107, -0.055973510474474214, 0.200679176534224, 0.19064635330358068, 0.05439684879840226, -0.08754815933449815, -0.24641109366800534, 0.13263515868383619, -0.24164379058984686, -0.1804809837291638, -0.013290121442395018, 0.11678735806128464, -0.05435089992678112, -0.2217205195742248, 0.0025776785689297023, 0.15092324661846096, 0.14861197410537316, -0.10571215771293889, -0.05428828325396328, -0.04441607292942904, 0.0798087581354487, -0.04734951340350079, 0.05340530324165147, 0.07122927243812932, -0.08319372121404084, -0.19721667814647426, 0.36978000989771104, -0.030457822404600477, -0.21095738182398113, 0.16851860528962836, -0.18245327739078585, -0.19856017169349635, 0.08743328670551581, 0.035875820571573465, 0.11943865095911262, -0.0855219643262817, 0.21194096417994834, -0.18522422578655653, 0.03738381188186641, 0.08744640049298068, -0.08144985378703086, 0.1553462148300028, 0.13923582811378413, 0.07434671426292609, 0.0982920998657072, 0.10617995268858231, 0.035576475378826494, -0.3451844124912142, -0.2077863839547242, -0.0850427110117298, 0.16178245594326998, -0.05243576497564759, -0.18954676276425253, 0.434167396612801, 0.1200677810387837, 0.2071903221107818, 0.05286960088572389, 0.17443993918782286, 0.06683871065707445, 0.1032980505486128, 0.05709304226780528, 0.13562784526866298, 0.24665734636479872, -0.03880609529982279, -0.1444871059665037, -0.09101954187258138, 0.1907957467535796] |
707.3598 | On the dihedral n-body problem | Consider n=2l>=4 point particles with equal masses in space, subject to the
following symmetry constraint: at each instant they form an orbit of the
dihedral group D_l, where D_l is the group of order 2l generated by two
rotations of angle pi around two secant lines in space meeting at an angle of
pi/l. By adding a homogeneous gravitational (Newtonian) potential one finds a
special $n$-body problem with three degrees of freedom, which is a kind of
generalisation of Devaney isosceles problem, in which all orbits have zero
angular momentum. In the paper we find all the central configurations and we
compute the dimension of the stable/unstable manifolds.
| math.DS | consider n2l4 point particles with equal masses in space subject to the following symmetry constraint at each instant they form an orbit of the dihedral group d_l where d_l is the group of order 2l generated by two rotations of angle pi around two secant lines in space meeting at an angle of pil by adding a homogeneous gravitational newtonian potential one finds a special nbody problem with three degrees of freedom which is a kind of generalisation of devaney isosceles problem in which all orbits have zero angular momentum in the paper we find all the central configurations and we compute the dimension of the stableunstable manifolds | [['consider', 'n2l4', 'point', 'particles', 'with', 'equal', 'masses', 'in', 'space', 'subject', 'to', 'the', 'following', 'symmetry', 'constraint', 'at', 'each', 'instant', 'they', 'form', 'an', 'orbit', 'of', 'the', 'dihedral', 'group', 'd_l', 'where', 'd_l', 'is', 'the', 'group', 'of', 'order', '2l', 'generated', 'by', 'two', 'rotations', 'of', 'angle', 'pi', 'around', 'two', 'secant', 'lines', 'in', 'space', 'meeting', 'at', 'an', 'angle', 'of', 'pil', 'by', 'adding', 'a', 'homogeneous', 'gravitational', 'newtonian', 'potential', 'one', 'finds', 'a', 'special', 'nbody', 'problem', 'with', 'three', 'degrees', 'of', 'freedom', 'which', 'is', 'a', 'kind', 'of', 'generalisation', 'of', 'devaney', 'isosceles', 'problem', 'in', 'which', 'all', 'orbits', 'have', 'zero', 'angular', 'momentum', 'in', 'the', 'paper', 'we', 'find', 'all', 'the', 'central', 'configurations', 'and', 'we', 'compute', 'the', 'dimension', 'of', 'the', 'stableunstable', 'manifolds']] | [-0.231262784668845, 0.1427082557682161, -0.05180493302460516, -0.002334049702665516, -0.05667378971892818, -0.12119696488621358, -0.0016659675568568512, 0.3264861422651839, -0.27284949740273096, -0.27231070486323855, 0.07359859585831656, -0.30685483915165557, -0.08392410124565049, 0.1352162138933194, -0.01635088461721055, 0.001962309111362306, 0.028579428737600134, 0.08069843963598049, -0.11386623013020432, -0.2431923747258522, 0.3864635179454687, 0.004005006518841625, 0.1741010853672557, -0.032869238597906636, 0.13319676705836275, 0.029670468474973306, 0.013977866062772609, 0.012845345767906859, -0.14482118864761334, 0.058438620819475186, 0.2082229016096305, 0.04456868975980329, 0.2263151377256716, -0.359844307650194, -0.12768807499800053, 0.13985667282402098, 0.152594465727561, 0.07522795031447764, -0.012154637065620344, -0.2582317238377633, 0.05952096504711973, -0.14570905042760005, -0.22142787071414918, 0.012134789510969525, 0.07158660578049685, -0.009302017418232477, -0.23417713140598803, 0.051587402463725236, 0.06371061663169449, 0.09809021632596154, -0.033813883045636046, -0.11039768312524603, -0.047425527619546125, 0.10805494296168647, 0.08489838779020498, 0.056365282279134635, 0.08825814518664102, -0.08701602138892234, -0.11102111184116557, 0.4448885457790413, 0.0055466130953586755, -0.2640032518968404, 0.13876506920782067, -0.19994295185222943, -0.14273244522459735, 0.16283046320694386, 0.16572510109666003, 0.13660694284486435, -0.10818294675098122, 0.10683268337308159, -0.06612486008633033, 0.12331167709601339, 0.14931384906625358, -0.00174936188480634, 0.24393764828009723, 0.07318980231985589, 0.14383735394792926, 0.1180081585466766, -0.0893371553708599, -0.09465655885967557, -0.3243904497091458, -0.13810110525184563, -0.15872875264428, 0.0628237926910379, -0.12137475431769995, -0.11525276949124358, 0.38398669863546214, 0.05613212027504309, 0.22210222857386291, 0.05217906239303264, 0.2488146005285399, 0.07107909707130568, 0.052683824668943044, 0.10035651288578444, 0.23263802530818453, 0.12614618884356013, 0.007966044052094917, -0.19776151624342828, -0.047390121540106904, 0.12905843685616122] |
707.3599 | Theory for p-Wave Feshbach Molecules | We determine the physical properties of \emph{p}-wave Feshbach molecules in
doubly spin-polarized $^{40}$K and find excellent agreement with recent
experiments. We show that these molecules have a large probability $Z$ to be in
the closed channel or bare molecular state responsible for the Feshbach
resonance. In the superfluid state this allows for observation of Rabi
oscillations between the molecular and atomic components of the Bose-Einstein
condensed pairs, which contains a characteristic signature of the quantum phase
transition that occurs as a function of applied magnetic field.
| cond-mat.supr-con | we determine the physical properties of emphpwave feshbach molecules in doubly spinpolarized 40k and find excellent agreement with recent experiments we show that these molecules have a large probability z to be in the closed channel or bare molecular state responsible for the feshbach resonance in the superfluid state this allows for observation of rabi oscillations between the molecular and atomic components of the boseeinstein condensed pairs which contains a characteristic signature of the quantum phase transition that occurs as a function of applied magnetic field | [['we', 'determine', 'the', 'physical', 'properties', 'of', 'emphpwave', 'feshbach', 'molecules', 'in', 'doubly', 'spinpolarized', '40k', 'and', 'find', 'excellent', 'agreement', 'with', 'recent', 'experiments', 'we', 'show', 'that', 'these', 'molecules', 'have', 'a', 'large', 'probability', 'z', 'to', 'be', 'in', 'the', 'closed', 'channel', 'or', 'bare', 'molecular', 'state', 'responsible', 'for', 'the', 'feshbach', 'resonance', 'in', 'the', 'superfluid', 'state', 'this', 'allows', 'for', 'observation', 'of', 'rabi', 'oscillations', 'between', 'the', 'molecular', 'and', 'atomic', 'components', 'of', 'the', 'boseeinstein', 'condensed', 'pairs', 'which', 'contains', 'a', 'characteristic', 'signature', 'of', 'the', 'quantum', 'phase', 'transition', 'that', 'occurs', 'as', 'a', 'function', 'of', 'applied', 'magnetic', 'field']] | [-0.17700637049626472, 0.2216125162674363, -0.05980159002247938, 0.04497954223797722, 0.023895256064269087, -0.132146566505219, 0.08239256441972197, 0.36405935625783925, -0.21230415828785923, -0.25688414421842193, -0.03018767502954836, -0.24657179790208533, -0.09193383401725441, 0.17568995217998448, 0.1017270504475333, 0.04455935282546074, 0.05913723985729522, 0.042498834739130555, -0.056434503523632884, -0.17513610045209008, 0.3226364341518452, -0.01716811820285308, 0.2504805863921552, 0.0940220586814766, 0.07393114308848284, -0.033775874949601846, 0.11150982883368987, -0.04397494579816973, -0.1573740817862969, 0.08187294227536768, 0.27870445717992476, 0.01853961172529908, 0.18066651930729316, -0.4370601947614273, -0.20251845368820373, 0.10949742550647623, 0.1747272585215437, 0.18165436015209876, -0.0881323987174086, -0.31791664932876135, -0.007490908088119224, -0.14858291908925356, -0.14306699345971263, -0.10931310959181986, 0.028583717187270954, 0.05335818204032474, -0.27265695744562285, 0.11645355025512101, 0.02757813070012733, 0.0900190127796905, -0.0613397364822747, -0.11147017264738679, 0.017450415610530696, 0.0882598569719554, -0.007202783580544556, 0.0612359116555105, 0.17541925298851416, -0.17405080679921855, -0.08991536217590057, 0.37532621096862956, -0.15367481840752759, -0.09896334372108889, 0.21085596993784853, -0.19125340457160978, -0.0852486496184801, 0.18502894959542468, 0.10829489697637253, 0.08790951602290882, -0.10685862065834362, 0.06146741084359197, -0.08357895403927149, 0.18757303939525818, 0.04287231520500554, 0.09517342503496302, 0.27613489649280215, 0.13778155141098555, -0.00039282051359403465, 0.15359254762784816, -0.16027068329411884, -0.12453587967252662, -0.2433276475504647, -0.19336329110922443, -0.2055349862690322, 0.047215406647558474, 0.02311660766332183, -0.15870903750210133, 0.3941249493834411, 0.11539124485733378, 0.2539421796560461, -0.07138426506453259, 0.25364323835928254, 0.10484157547999043, 0.05535470618498187, 0.01726296895486844, 0.26241958680627653, 0.19935408382145905, 0.0448693355198863, -0.31055378058632876, 0.030316530159663756, -0.016136498379975904] |
707.36 | Further evidence for N(1900)P_{13} from photoproduction of hyperons | We report further evidence for $N(1900)P_{13}$ from an analysis of a large
variety of photo- and pion-induced reactions, in particular from the new CLAS
measurements of double polarization observables for photoproduction of
hyperons. The data are consistent with two classes of solutions both requiring
contributions from $N(1900)P_{13}$ but giving different $N(1900)P_{13}$ pole
positions. $(M-i\Gamma/2) = (1915\pm50)-i(90\pm25)$ MeV covers both solutions.
The small elasticity of 10% or less explains why it was difficult to observe
the state in $\pi N$ elastic scattering.
$N(1900)P_{13}$ is a 2-star resonance which is predicted by symmetric
three-quark models. In diquark-quark models, the existence of the state is not
expected.
| hep-ph | we report further evidence for n1900p_13 from an analysis of a large variety of photo and pioninduced reactions in particular from the new clas measurements of double polarization observables for photoproduction of hyperons the data are consistent with two classes of solutions both requiring contributions from n1900p_13 but giving different n1900p_13 pole positions migamma2 1915pm50i90pm25 mev covers both solutions the small elasticity of 10 or less explains why it was difficult to observe the state in pi n elastic scattering n1900p_13 is a 2star resonance which is predicted by symmetric threequark models in diquarkquark models the existence of the state is not expected | [['we', 'report', 'further', 'evidence', 'for', 'n1900p_13', 'from', 'an', 'analysis', 'of', 'a', 'large', 'variety', 'of', 'photo', 'and', 'pioninduced', 'reactions', 'in', 'particular', 'from', 'the', 'new', 'clas', 'measurements', 'of', 'double', 'polarization', 'observables', 'for', 'photoproduction', 'of', 'hyperons', 'the', 'data', 'are', 'consistent', 'with', 'two', 'classes', 'of', 'solutions', 'both', 'requiring', 'contributions', 'from', 'n1900p_13', 'but', 'giving', 'different', 'n1900p_13', 'pole', 'positions', 'migamma2', '1915pm50i90pm25', 'mev', 'covers', 'both', 'solutions', 'the', 'small', 'elasticity', 'of', '10', 'or', 'less', 'explains', 'why', 'it', 'was', 'difficult', 'to', 'observe', 'the', 'state', 'in', 'pi', 'n', 'elastic', 'scattering', 'n1900p_13', 'is', 'a', '2star', 'resonance', 'which', 'is', 'predicted', 'by', 'symmetric', 'threequark', 'models', 'in', 'diquarkquark', 'models', 'the', 'existence', 'of', 'the', 'state', 'is', 'not', 'expected']] | [-0.09987631351410384, 0.16864115733202054, -0.09317662927441962, 0.09120515134476015, -0.06035750048923177, -0.11939301099317001, 0.03271730180304166, 0.33104015777975615, -0.21263417516752045, -0.2858715522942124, 0.026334697312656974, -0.34569247537246434, -0.06959832754299634, 0.17664984380134777, 0.04039000304839989, 0.047863234242535024, 0.06847452649865116, 0.023085371314520292, -0.04128047780567171, -0.15631255696499996, 0.34761846173407124, 0.005568800152897245, 0.2441729616816386, 0.1081181557498651, 0.04035976305396508, -0.0012900760019253386, -0.014929843001473363, -0.022282925153169597, -0.09921681035383798, 0.06481053093148598, 0.273563172440935, 0.09652098768156246, 0.13567904748096324, -0.3908789895733099, -0.12798233133842155, 0.10254301686568351, 0.13027851419790767, 0.1549804187276041, -0.051001208315667984, -0.2795601685503774, 0.07100646728004265, -0.15905481835280885, -0.13044007104535651, -0.10472199513973428, 0.04304070548744559, -0.002630891711773849, -0.2729945380729393, 0.07739879085341154, 0.011709781082365478, 0.05110556011706, -0.11676700659197672, -0.20597514802691444, -0.013037656039681912, 0.06617981906159606, 0.07222339198325235, 0.03605169127464737, 0.08719467241685874, -0.18235123221702543, -0.134036028527166, 0.3824941286134838, -0.04409491506838562, -0.17034923344260394, 0.15619062334483508, -0.19290470352654557, -0.12156797477071828, 0.2083088418395065, 0.141346617076214, 0.1239998657973875, -0.15568093878060285, 0.06831863115825183, -0.044039704888773214, 0.19941561027674354, 0.06763497207516639, 0.011215562978298357, 0.17773064917488263, 0.1836238244230315, -0.006554779273891213, 0.08799979738928008, -0.11945036733019457, -0.08954063938506464, -0.32864149392462605, -0.07594159556239254, -0.09414431180270148, 0.07600860709066867, -0.04078855343830961, -0.12434905582098382, 0.35613023027971313, 0.06613953967606372, 0.2471543225819374, 0.01606645629773525, 0.2615396998186439, 0.06951640228196831, 0.07903216642760995, 0.04006074108921065, 0.2810446741520473, 0.15569242928407645, 0.10532958304859918, -0.20142150377753273, 0.06804861223076165, -0.046880257127479195] |
707.3601 | Entropy of near-extremal black holes in AdS_5 | We construct the microstates of near-extremal black holes in AdS_5 x S^5 as
gases of defects distributed in heavy BPS operators in the dual SU(N)
Yang-Mills theory. These defects describe open strings on spherical D3-branes
in the S^5, and we show that they dominate the entropy by directly enumerating
them and comparing the results with a partition sum calculation. We display new
decoupling limits in which the field theory of the lightest open strings on the
D-branes becomes dual to a near-horizon region of the black hole geometry. In
the single-charge black hole we find evidence for an infrared duality between
SU(N) Yang-Mills theories that exchanges the rank of the gauge group with an
R-charge. In the two-charge case (where pairs of branes intersect on a line),
the decoupled geometry includes an AdS_3 factor with a two-dimensional CFT
dual. The degeneracy in this CFT accounts for the black hole entropy. In the
three-charge case (where triples of branes intersect at a point), the decoupled
geometry contains an AdS_2 factor. Below a certain critical mass, the
two-charge system displays solutions with naked timelike singularities even
though they do not violate a BPS bound. We suggest a string theoretic
resolution of these singularities.
| hep-th | we construct the microstates of nearextremal black holes in ads_5 x s5 as gases of defects distributed in heavy bps operators in the dual sun yangmills theory these defects describe open strings on spherical d3branes in the s5 and we show that they dominate the entropy by directly enumerating them and comparing the results with a partition sum calculation we display new decoupling limits in which the field theory of the lightest open strings on the dbranes becomes dual to a nearhorizon region of the black hole geometry in the singlecharge black hole we find evidence for an infrared duality between sun yangmills theories that exchanges the rank of the gauge group with an rcharge in the twocharge case where pairs of branes intersect on a line the decoupled geometry includes an ads_3 factor with a twodimensional cft dual the degeneracy in this cft accounts for the black hole entropy in the threecharge case where triples of branes intersect at a point the decoupled geometry contains an ads_2 factor below a certain critical mass the twocharge system displays solutions with naked timelike singularities even though they do not violate a bps bound we suggest a string theoretic resolution of these singularities | [['we', 'construct', 'the', 'microstates', 'of', 'nearextremal', 'black', 'holes', 'in', 'ads_5', 'x', 's5', 'as', 'gases', 'of', 'defects', 'distributed', 'in', 'heavy', 'bps', 'operators', 'in', 'the', 'dual', 'sun', 'yangmills', 'theory', 'these', 'defects', 'describe', 'open', 'strings', 'on', 'spherical', 'd3branes', 'in', 'the', 's5', 'and', 'we', 'show', 'that', 'they', 'dominate', 'the', 'entropy', 'by', 'directly', 'enumerating', 'them', 'and', 'comparing', 'the', 'results', 'with', 'a', 'partition', 'sum', 'calculation', 'we', 'display', 'new', 'decoupling', 'limits', 'in', 'which', 'the', 'field', 'theory', 'of', 'the', 'lightest', 'open', 'strings', 'on', 'the', 'dbranes', 'becomes', 'dual', 'to', 'a', 'nearhorizon', 'region', 'of', 'the', 'black', 'hole', 'geometry', 'in', 'the', 'singlecharge', 'black', 'hole', 'we', 'find', 'evidence', 'for', 'an', 'infrared', 'duality', 'between', 'sun', 'yangmills', 'theories', 'that', 'exchanges', 'the', 'rank', 'of', 'the', 'gauge', 'group', 'with', 'an', 'rcharge', 'in', 'the', 'twocharge', 'case', 'where', 'pairs', 'of', 'branes', 'intersect', 'on', 'a', 'line', 'the', 'decoupled', 'geometry', 'includes', 'an', 'ads_3', 'factor', 'with', 'a', 'twodimensional', 'cft', 'dual', 'the', 'degeneracy', 'in', 'this', 'cft', 'accounts', 'for', 'the', 'black', 'hole', 'entropy', 'in', 'the', 'threecharge', 'case', 'where', 'triples', 'of', 'branes', 'intersect', 'at', 'a', 'point', 'the', 'decoupled', 'geometry', 'contains', 'an', 'ads_2', 'factor', 'below', 'a', 'certain', 'critical', 'mass', 'the', 'twocharge', 'system', 'displays', 'solutions', 'with', 'naked', 'timelike', 'singularities', 'even', 'though', 'they', 'do', 'not', 'violate', 'a', 'bps', 'bound', 'we', 'suggest', 'a', 'string', 'theoretic', 'resolution', 'of', 'these', 'singularities']] | [-0.176939455138992, 0.14087620228575312, -0.06310497440437703, 0.14196696852516866, -0.018156978356146915, -0.16116999038749963, 0.01661638852292255, 0.2857523787250066, -0.14774731846453287, -0.22303838067831686, 0.07653327141737852, -0.34901297069270515, -0.0966271553049559, 0.12484021046006616, -0.09916595815075967, -0.0016556967939458677, -0.00938818447317335, 0.0644063646580783, -0.13005154090585994, -0.2525961734215493, 0.3743065015525228, 0.0027304665273546577, 0.2729394609775783, 0.049173528504029694, 0.0861200230278362, 0.025511252182994538, 0.04936734843183661, 0.04103932758044354, -0.15074220296976895, 0.10257364480422615, 0.25007495494438936, 0.08884430221578486, 0.09266174357530396, -0.4582512084329825, -0.19581909516863338, 0.07291232025602934, 0.21005280692980566, 0.14882504572774474, -0.0384967005921676, -0.24502435827220034, 0.04850018564964974, -0.159852593032115, -0.17929163755760968, -0.02421622011585819, 0.03019173195891416, -0.08631645974561813, -0.1917679461184889, 0.0727190627538094, 0.03664300794161819, -0.002814617997211455, -0.09518601293953609, -0.02582138602735373, -0.09714258881198909, 0.07785758268625582, 0.12824385032400637, 0.061698986727637774, 0.16051331395051668, -0.1843375750990823, -0.15320957382093764, 0.3010494416467822, -0.034124599814887586, -0.22227816283847646, 0.1561263428389359, -0.20532461252197884, -0.17551139737734228, 0.12370181496750879, 0.10629137376883989, 0.2388775792062359, -0.09330345585997869, 0.21538140524852908, -0.06446599241795566, 0.15874560831699044, 0.12482611251999601, 0.08845284953945089, 0.37796984022640767, 0.0809602688821913, 0.04704001481848681, 0.17498312101801347, -0.05138931711872145, -0.12798527459062597, -0.39402822594607795, -0.1439822353900466, -0.11623215188958047, 0.14590283139472404, -0.17514531826817625, -0.2157269727834848, 0.312463274874275, 0.07537047460615005, 0.22128138021885682, 0.010065758612993827, 0.1682503014599387, 0.07705966982265369, 0.05716694304395226, 0.13196167132275097, 0.26474392650051237, 0.11629310696598939, 0.07569831249243882, -0.250915740303862, -0.17833984306369402, 0.19224942540888912] |
707.3602 | Precise Particle Tracking Against a Complicated Background: Polynomial
Fitting with Gaussian Weight | We present a new particle tracking software algorithm designed to accurately
track the motion of low-contrast particles against a background with large
variations in light levels. The method is based on a polynomial fit of the
intensity around each feature point, weighted by a Gaussian function of the
distance from the centre, and is especially suitable for tracking endogeneous
particles in the cell, imaged with bright field, phase contrast or fluorescence
optical microscopy. Furthermore, the method can simultaneously track particles
of all different sizes, and allows significant freedom in their shape. The
algorithm is evaluated using the quantitative measures of accuracy and
precision of previous authors, using simulated images at variable
signal-to-noise ratios. To these we add a new test of the error due to a
non-uniform background. Finally the tracking of particles in real cell images
is demonstrated. The method is made freely available for non-commencial use as
a software package with a graphical user-inferface, which can be run within the
Matlab programming environment.
| cond-mat.soft cond-mat.other | we present a new particle tracking software algorithm designed to accurately track the motion of lowcontrast particles against a background with large variations in light levels the method is based on a polynomial fit of the intensity around each feature point weighted by a gaussian function of the distance from the centre and is especially suitable for tracking endogeneous particles in the cell imaged with bright field phase contrast or fluorescence optical microscopy furthermore the method can simultaneously track particles of all different sizes and allows significant freedom in their shape the algorithm is evaluated using the quantitative measures of accuracy and precision of previous authors using simulated images at variable signaltonoise ratios to these we add a new test of the error due to a nonuniform background finally the tracking of particles in real cell images is demonstrated the method is made freely available for noncommencial use as a software package with a graphical userinferface which can be run within the matlab programming environment | [['we', 'present', 'a', 'new', 'particle', 'tracking', 'software', 'algorithm', 'designed', 'to', 'accurately', 'track', 'the', 'motion', 'of', 'lowcontrast', 'particles', 'against', 'a', 'background', 'with', 'large', 'variations', 'in', 'light', 'levels', 'the', 'method', 'is', 'based', 'on', 'a', 'polynomial', 'fit', 'of', 'the', 'intensity', 'around', 'each', 'feature', 'point', 'weighted', 'by', 'a', 'gaussian', 'function', 'of', 'the', 'distance', 'from', 'the', 'centre', 'and', 'is', 'especially', 'suitable', 'for', 'tracking', 'endogeneous', 'particles', 'in', 'the', 'cell', 'imaged', 'with', 'bright', 'field', 'phase', 'contrast', 'or', 'fluorescence', 'optical', 'microscopy', 'furthermore', 'the', 'method', 'can', 'simultaneously', 'track', 'particles', 'of', 'all', 'different', 'sizes', 'and', 'allows', 'significant', 'freedom', 'in', 'their', 'shape', 'the', 'algorithm', 'is', 'evaluated', 'using', 'the', 'quantitative', 'measures', 'of', 'accuracy', 'and', 'precision', 'of', 'previous', 'authors', 'using', 'simulated', 'images', 'at', 'variable', 'signaltonoise', 'ratios', 'to', 'these', 'we', 'add', 'a', 'new', 'test', 'of', 'the', 'error', 'due', 'to', 'a', 'nonuniform', 'background', 'finally', 'the', 'tracking', 'of', 'particles', 'in', 'real', 'cell', 'images', 'is', 'demonstrated', 'the', 'method', 'is', 'made', 'freely', 'available', 'for', 'noncommencial', 'use', 'as', 'a', 'software', 'package', 'with', 'a', 'graphical', 'userinferface', 'which', 'can', 'be', 'run', 'within', 'the', 'matlab', 'programming', 'environment']] | [-0.05192129305518158, 0.06645335163492595, -0.09993333963140205, 0.031607646100862995, -0.03095796543596301, -0.15433684843335232, 0.011452323002555047, 0.4256616049200479, -0.23578261256652192, -0.35922239365147574, 0.0874740754916944, -0.2572699170460549, -0.10906821944282327, 0.19868839682191267, -0.07518662718278955, 0.09019231264896553, 0.09028682106694469, 0.029663378887015618, -0.03139023267966838, -0.2269090788376066, 0.24959474544332255, 0.09905930763350491, 0.2639612824901756, 0.017195934211218192, 0.13967554824729592, 0.01694790675287689, -0.0656121950110912, 0.0491571792721337, -0.07409292266367037, 0.11642564291797258, 0.2075106335812437, 0.13546576786020692, 0.24273836286738515, -0.38671223602280524, -0.18549867677987994, 0.08722691407621455, 0.1580429914892377, 0.11711459819361728, -0.06940167270775062, -0.3162143763920372, 0.06928424371772109, -0.1159038984336736, -0.138789542313798, -0.05377830127168424, -0.018810745703622105, 0.06328758339689004, -0.28375396928664276, 0.056618942727729035, -0.03160267869764768, 0.0846042626657369, -0.05126784725916041, -0.08692873924530677, 0.012143959619813353, 0.14502845016776647, 0.007531048907138453, 0.046137310934475866, 0.17535209270377008, -0.11327753094899143, -0.10495761825925916, 0.3806680051747001, -0.08018903758132578, -0.21832035310520717, 0.20487008659609027, -0.13421023111687574, -0.09625937740826991, 0.18822685396013084, 0.22089137921989696, 0.13573996858397053, -0.1734533379871421, 0.050600012163331654, -0.008058650152003565, 0.2173716990297526, 0.05981763430722515, -0.01258339131525232, 0.21045833442680126, 0.17960850372224862, 0.03002627229388015, 0.1543336252409085, -0.18283310656984297, -0.05084315402164735, -0.25616437801234193, -0.1560031247662346, -0.19272441184790975, -0.04799764553953442, -0.10429523204157966, -0.16047993786290196, 0.41249025989026744, 0.16578107306439474, 0.1881720707837515, 0.04762049030264028, 0.3495364411065549, 0.06005470890357542, 0.09274666050329028, 0.063991765780203, 0.20973049324760043, 0.07293748317652045, 0.10338536543097415, -0.1970561121896115, 0.04993081472791228, 0.023461995812052962] |
707.3603 | Sur la cat\'egorie des bimodules de Soergel | The Soergel category B of a Coxeter system (W,S) is a bimodule category over
a polynomial algebra on which W acts. It's a categorification of the Hecke
Algebra of (W,S). In this article we give a combinatorial description of
morphism spaces in B. As a corollary, we give an analogous description of the
morphisms in O_0-proj, where O_0 is the principal block of the BGG category O.
-----
La cat\'egorie B de Soergel d'un syst\`eme de Coxeter (W,S) est une
cat\'egorie de bimodules sur une alg\`ebre de polyn\^omes sur laquelle W agit.
C'est une cat\'egorification de l'alg\`ebre de Hecke de (W,S). Dans cet article
nous donnons une description combinatoire des espaces de morphismes dans B. En
corollaire, on obtient une description analogue des morphismes dans O_0-proj,
o\`u O_0 est le bloc principal de la cat\'egorie O de BGG.
| math.RT | the soergel category b of a coxeter system ws is a bimodule category over a polynomial algebra on which w acts its a categorification of the hecke algebra of ws in this article we give a combinatorial description of morphism spaces in b as a corollary we give an analogous description of the morphisms in o_0proj where o_0 is the principal block of the bgg category o la categorie b de soergel dun systeme de coxeter ws est une categorie de bimodules sur une algebre de polynomes sur laquelle w agit cest une categorification de lalgebre de hecke de ws dans cet article nous donnons une description combinatoire des espaces de morphismes dans b en corollaire on obtient une description analogue des morphismes dans o_0proj ou o_0 est le bloc principal de la categorie o de bgg | [['the', 'soergel', 'category', 'b', 'of', 'a', 'coxeter', 'system', 'ws', 'is', 'a', 'bimodule', 'category', 'over', 'a', 'polynomial', 'algebra', 'on', 'which', 'w', 'acts', 'its', 'a', 'categorification', 'of', 'the', 'hecke', 'algebra', 'of', 'ws', 'in', 'this', 'article', 'we', 'give', 'a', 'combinatorial', 'description', 'of', 'morphism', 'spaces', 'in', 'b', 'as', 'a', 'corollary', 'we', 'give', 'an', 'analogous', 'description', 'of', 'the', 'morphisms', 'in', 'o_0proj', 'where', 'o_0', 'is', 'the', 'principal', 'block', 'of', 'the', 'bgg', 'category', 'o', 'la', 'categorie', 'b', 'de', 'soergel', 'dun', 'systeme', 'de', 'coxeter', 'ws', 'est', 'une', 'categorie', 'de', 'bimodules', 'sur', 'une', 'algebre', 'de', 'polynomes', 'sur', 'laquelle', 'w', 'agit', 'cest', 'une', 'categorification', 'de', 'lalgebre', 'de', 'hecke', 'de', 'ws', 'dans', 'cet', 'article', 'nous', 'donnons', 'une', 'description', 'combinatoire', 'des', 'espaces', 'de', 'morphismes', 'dans', 'b', 'en', 'corollaire', 'on', 'obtient', 'une', 'description', 'analogue', 'des', 'morphismes', 'dans', 'o_0proj', 'ou', 'o_0', 'est', 'le', 'bloc', 'principal', 'de', 'la', 'categorie', 'o', 'de', 'bgg']] | [-0.22798045034891457, -0.0485900076730063, -0.19234463549919315, 0.03991010701511391, -0.14277696465072048, -0.16994428218699487, -0.20467148796844303, 0.08313907769725735, -0.2983918195639394, -0.16496005660987326, -0.007037116000183711, -0.29429626739338827, -0.1768131056394344, 0.13557737935912145, -0.3771618913116872, -0.19582694879587725, -0.04022450744405501, 0.0022271998940889995, 0.02347983488349351, -0.2753460527978894, 0.3505145261520205, 0.17021650641708447, 0.27747744930508944, -0.1358342102826818, 0.17468197175294609, 0.2159945995886495, 0.026520762977687486, -0.20265160544418304, -0.3491740214990284, 0.07821544559140291, 0.45552566253293053, 0.1565428757059731, 0.19241619875735105, -0.270620096888029, 0.12475070847492468, 0.17509226069638603, 0.16820568543389663, 0.011375245664450796, 0.01603023047537956, -0.4592051693287335, 0.11621533520869855, -0.31127473970269437, -0.03971176119381212, -0.01441655754587872, -0.014321885968005299, -0.005892902511150989, -0.22254973186768198, 0.057084939176482816, 0.11495260217514142, 0.22127042721984977, -0.0749045287414727, -0.24152403231972785, -0.20508497163541334, -0.03989197260216999, -0.24336387814001592, 0.08989226949730314, 0.057004597363643404, 0.08511731489491474, -0.06808549441621267, 0.29258454666662037, -0.17088213322607143, -0.09681467502903109, 0.15887852413299725, -0.10628690373124484, -0.28943573995808464, 0.07422911559924819, 0.01340620859729168, 0.15714642094602263, 0.232027225763558, 0.44541668535483286, -0.05638077260560489, 0.051866254160054644, 0.2677639629131645, -0.06488666288498648, 0.09351725244012318, 0.019431848973525984, -0.06473670429698913, -0.16964510323031617, 0.02694193412255692, 0.08854625711814479, -0.2858475501127401, -0.47283885198036085, 0.013814113473981843, 0.17285597544247494, -0.08152914426772666, -0.35417648281593966, 0.1873712329460042, -0.015377042443960681, 0.15837036823692793, 0.10426666176636332, 0.05464007391916462, -0.1742980003582762, -0.07702618560235583, -0.058794038979462664, 0.02312185659416412, 0.18818228012581067, 0.19176723147633912, -0.19888472822372263, -0.10793162231102474, 0.4231011708498113] |
707.3604 | A New Low-Mass Eclipsing Binary from SDSS-II | We present observations of a new low-mass double-lined eclipsing binary
system discovered using repeat observations of the celestial equator from the
Sloan Digital Sky Survey II. Using near-infrared photometry and optical
spectroscopy we have measured the properties of this short-period
[P=0.407037(14) d] system and its two components. We find the following
parameters for the two components: M_1=0.272+/-0.020 M_sun, R_1=0.268+/-0.010
R_sun, M_2=0.240+/-0.022 M_sun, R_2=0.248+/-0.0090 R_sun, T_1=3320+/-130 K,
T_2=3300+/-130 K. The masses and radii of the two components of this system
agree well with theoretical expectations based on models of low-mass stars,
within the admittedly large errors. Future synoptic surveys like Pan-STARRS and
LSST will produce a wealth of information about low-mass eclipsing systems and
should make it possible, with an increased reliance on follow-up observations,
to detect many systems with low-mass and sub-stellar companions. With the large
numbers of objects for which these surveys will produce high-quality
photometry, we suggest that it becomes possible to identify such systems even
with sparse time sampling and a relatively small number of individual
observations.
| astro-ph | we present observations of a new lowmass doublelined eclipsing binary system discovered using repeat observations of the celestial equator from the sloan digital sky survey ii using nearinfrared photometry and optical spectroscopy we have measured the properties of this shortperiod p040703714 d system and its two components we find the following parameters for the two components m_102720020 m_sun r_102680010 r_sun m_202400022 m_sun r_2024800090 r_sun t_13320130 k t_23300130 k the masses and radii of the two components of this system agree well with theoretical expectations based on models of lowmass stars within the admittedly large errors future synoptic surveys like panstarrs and lsst will produce a wealth of information about lowmass eclipsing systems and should make it possible with an increased reliance on followup observations to detect many systems with lowmass and substellar companions with the large numbers of objects for which these surveys will produce highquality photometry we suggest that it becomes possible to identify such systems even with sparse time sampling and a relatively small number of individual observations | [['we', 'present', 'observations', 'of', 'a', 'new', 'lowmass', 'doublelined', 'eclipsing', 'binary', 'system', 'discovered', 'using', 'repeat', 'observations', 'of', 'the', 'celestial', 'equator', 'from', 'the', 'sloan', 'digital', 'sky', 'survey', 'ii', 'using', 'nearinfrared', 'photometry', 'and', 'optical', 'spectroscopy', 'we', 'have', 'measured', 'the', 'properties', 'of', 'this', 'shortperiod', 'p040703714', 'd', 'system', 'and', 'its', 'two', 'components', 'we', 'find', 'the', 'following', 'parameters', 'for', 'the', 'two', 'components', 'm_102720020', 'm_sun', 'r_102680010', 'r_sun', 'm_202400022', 'm_sun', 'r_2024800090', 'r_sun', 't_13320130', 'k', 't_23300130', 'k', 'the', 'masses', 'and', 'radii', 'of', 'the', 'two', 'components', 'of', 'this', 'system', 'agree', 'well', 'with', 'theoretical', 'expectations', 'based', 'on', 'models', 'of', 'lowmass', 'stars', 'within', 'the', 'admittedly', 'large', 'errors', 'future', 'synoptic', 'surveys', 'like', 'panstarrs', 'and', 'lsst', 'will', 'produce', 'a', 'wealth', 'of', 'information', 'about', 'lowmass', 'eclipsing', 'systems', 'and', 'should', 'make', 'it', 'possible', 'with', 'an', 'increased', 'reliance', 'on', 'followup', 'observations', 'to', 'detect', 'many', 'systems', 'with', 'lowmass', 'and', 'substellar', 'companions', 'with', 'the', 'large', 'numbers', 'of', 'objects', 'for', 'which', 'these', 'surveys', 'will', 'produce', 'highquality', 'photometry', 'we', 'suggest', 'that', 'it', 'becomes', 'possible', 'to', 'identify', 'such', 'systems', 'even', 'with', 'sparse', 'time', 'sampling', 'and', 'a', 'relatively', 'small', 'number', 'of', 'individual', 'observations']] | [-0.1254357654114605, 0.11888654031042664, -0.06716316155060852, 0.044142264934210966, -0.1488855043597565, -0.10539609307538936, 0.08500165850112637, 0.3869467329668121, -0.1725211446644864, -0.357902605760774, 0.1291520577495449, -0.3571073606358898, -0.07794486887844428, 0.252010944516518, -0.07386965900402448, 0.03063664216215385, 0.17028542612307918, -0.0694554451270246, -0.035161424174681995, -0.28784699197515756, 0.26750800037539446, 0.02662499186131486, 0.07887254773204906, -0.08815050963883751, 0.07709738285355042, -0.047222118149082996, -0.08140046892550551, -0.022368429988576955, -0.16582433071900396, 0.06552588934524477, 0.26670289525085583, 0.1768369315152108, 0.21319497599512155, -0.3327464654104658, -0.18750858410301566, 0.08761547578704412, 0.1674072277615064, 0.046491783625800503, -0.041798181990390086, -0.28880236707870605, 0.08222499876097417, -0.18594285289819804, -0.18224798771981265, -0.04170733540636013, 0.056502756415552066, 0.09739726914401435, -0.23539223508235135, 0.07514743653820267, 0.00988311462455709, 0.140990604206554, -0.14089168472275526, -0.1645570459319964, -0.03848716035696672, 0.11677192655774804, 0.023571409473618483, 0.05192775504329339, 0.09571656728723298, -0.13137165450296748, -0.034214710559627395, 0.39157688132047286, -0.07742616725068517, -0.006706322546179858, 0.23806083573016304, -0.19111935519670462, -0.19748516762457743, 0.11811472981256872, 0.20374031556324543, 0.14447147826424178, -0.19048561600691843, -0.03929013131076379, 0.001326037569405751, 0.2600115123547705, 0.0022242578086471812, 0.11148960307023369, 0.3820032829881583, 0.15070220614866314, 0.026184315440265327, 0.06403964304792312, -0.28182406003581234, -0.003411462411221597, -0.20728618348805816, -0.08686086601856953, -0.14039159302479742, 0.07286196520860576, -0.09544780012157651, -0.1406592652287357, 0.3064471295194849, 0.17628705509841167, 0.2183068367464045, 0.08746886013884189, 0.33292002004622684, 0.02902175075277412, 0.13271080452511447, 0.07113856864533176, 0.3200741899028375, 0.14933863589025898, 0.10800702011132715, -0.18427161422580984, 0.015292344043499852, -0.0390892635425267] |
707.3605 | Astroparticle Physics with AMS02 | The Alpha Magnetic Spectrometer (AMS02) experiment will be installed in 2009
on the International Space Station (ISS) for an operational period of at least
three years. The purpose of AMS02 experiment is to perform accurate, high
statistics, long duration measurements in space of charged cosmic rays in
rigidity range from 1 GV to 3 TV and of high energy photons up to few hundred
of GeV. In this work we will discuss the experimental details and the physics
capabilities of AMS02 on ISS.
| astro-ph | the alpha magnetic spectrometer ams02 experiment will be installed in 2009 on the international space station iss for an operational period of at least three years the purpose of ams02 experiment is to perform accurate high statistics long duration measurements in space of charged cosmic rays in rigidity range from 1 gv to 3 tv and of high energy photons up to few hundred of gev in this work we will discuss the experimental details and the physics capabilities of ams02 on iss | [['the', 'alpha', 'magnetic', 'spectrometer', 'ams02', 'experiment', 'will', 'be', 'installed', 'in', '2009', 'on', 'the', 'international', 'space', 'station', 'iss', 'for', 'an', 'operational', 'period', 'of', 'at', 'least', 'three', 'years', 'the', 'purpose', 'of', 'ams02', 'experiment', 'is', 'to', 'perform', 'accurate', 'high', 'statistics', 'long', 'duration', 'measurements', 'in', 'space', 'of', 'charged', 'cosmic', 'rays', 'in', 'rigidity', 'range', 'from', '1', 'gv', 'to', '3', 'tv', 'and', 'of', 'high', 'energy', 'photons', 'up', 'to', 'few', 'hundred', 'of', 'gev', 'in', 'this', 'work', 'we', 'will', 'discuss', 'the', 'experimental', 'details', 'and', 'the', 'physics', 'capabilities', 'of', 'ams02', 'on', 'iss']] | [-0.11418065420879298, 0.23215446351478242, -0.047610475850033473, 0.09576235387294767, -0.05601364117205502, -0.09768876838652103, 0.020394868991640676, 0.382550028214478, -0.22554014050345644, -0.4352923878749092, 0.05354856060122151, -0.32134618293718403, 0.0260221862335162, 0.24920524608523373, -0.04996644514781165, 0.06453985518899309, 0.11348648572127414, 0.010295488731374583, -0.044123969585017624, -0.2637097764120673, 0.211335360695305, 0.23947778539395476, 0.21866338113210645, 0.08263801956403417, 0.11655849854024239, 0.0028216833983693854, -0.04920827926884136, -0.04442224462996293, -0.14040070148297104, 0.09261445289040096, 0.27281562224344674, 0.13791829420545373, 0.2032987820994423, -0.42731241830231914, -0.18444461505635676, 0.1164245018959943, 0.06758025756487286, -0.04002598107579243, -0.010300701015617654, -0.2894237940199673, 0.08677387253257883, -0.22258907796657948, -0.1387790678719799, -0.0010926895901134394, 0.01755859988954771, 0.011680985971632977, -0.21065120743194887, 0.011960772246245789, -0.047836506469960675, 0.07791114164830511, -0.11900831467236381, -0.10074037269700363, 0.06233797944431384, 0.09150994840605431, 0.08030388889980154, 0.03196567020951265, 0.12148009957072425, -0.06362772086377155, -0.11861838099647717, 0.33569332878722485, -0.08637709858973162, -0.04322095049253429, 0.18353618740339775, -0.2557460223913686, -0.18951964277931185, 0.17179874963609568, 0.2282922112674688, 0.03979758956996971, -0.14889843195272856, 0.09647666468111102, 0.0015122200396046582, 0.19899235500292067, 0.06816419199423258, 0.03673564387395619, 0.20062709324824882, 0.2374429134090981, 0.1293361411031605, 0.05032458580912551, -0.204313028258754, 0.02043442424465285, -0.3499963392155716, -0.13115729546543992, -0.16485515464635858, 0.05653237184532076, 0.0018890815122888974, -0.024078326025579393, 0.4132109785632017, 0.13627418206937342, 0.19670953856029336, -0.025068046586834883, 0.3066919807187585, -0.01402164295635534, 0.016328476447400254, 0.011684590967439384, 0.3306512367541352, 0.10057251781494503, 0.23857292879642134, -0.1250916148664946, -0.03501498886574823, 0.023526384279199213] |
707.3606 | How a protein searches for its specific site on DNA: the role of
intersegment transfer | Proteins are known to locate their specific targets on DNA up to two orders
of magnitude faster than predicted by the Smoluchowski three-dimensional
diffusion rate. One of the mechanisms proposed to resolve this discrepancy is
termed "intersegment transfer". Many proteins have two DNA binding sites and
can transfer from one DNA segment to another without dissociation to water. We
calculate the target search rate for such proteins in a dense globular DNA,
taking into account intersegment transfer working in conjunction with DNA
motion and protein sliding along DNA. We show that intersegment transfer plays
a very important role in cases where the protein spends most of its time
adsorbed on DNA.
| q-bio.BM cond-mat.soft | proteins are known to locate their specific targets on dna up to two orders of magnitude faster than predicted by the smoluchowski threedimensional diffusion rate one of the mechanisms proposed to resolve this discrepancy is termed intersegment transfer many proteins have two dna binding sites and can transfer from one dna segment to another without dissociation to water we calculate the target search rate for such proteins in a dense globular dna taking into account intersegment transfer working in conjunction with dna motion and protein sliding along dna we show that intersegment transfer plays a very important role in cases where the protein spends most of its time adsorbed on dna | [['proteins', 'are', 'known', 'to', 'locate', 'their', 'specific', 'targets', 'on', 'dna', 'up', 'to', 'two', 'orders', 'of', 'magnitude', 'faster', 'than', 'predicted', 'by', 'the', 'smoluchowski', 'threedimensional', 'diffusion', 'rate', 'one', 'of', 'the', 'mechanisms', 'proposed', 'to', 'resolve', 'this', 'discrepancy', 'is', 'termed', 'intersegment', 'transfer', 'many', 'proteins', 'have', 'two', 'dna', 'binding', 'sites', 'and', 'can', 'transfer', 'from', 'one', 'dna', 'segment', 'to', 'another', 'without', 'dissociation', 'to', 'water', 'we', 'calculate', 'the', 'target', 'search', 'rate', 'for', 'such', 'proteins', 'in', 'a', 'dense', 'globular', 'dna', 'taking', 'into', 'account', 'intersegment', 'transfer', 'working', 'in', 'conjunction', 'with', 'dna', 'motion', 'and', 'protein', 'sliding', 'along', 'dna', 'we', 'show', 'that', 'intersegment', 'transfer', 'plays', 'a', 'very', 'important', 'role', 'in', 'cases', 'where', 'the', 'protein', 'spends', 'most', 'of', 'its', 'time', 'adsorbed', 'on', 'dna']] | [-0.09705519150976125, 0.12361194426613348, 0.0011292596804901018, 0.09566530121096016, -0.02017292961360769, -0.16037549038191098, 0.06912606620640906, 0.42526015265098027, -0.2883376497114581, -0.26991067581751327, 0.003600724545928339, -0.27518152432759535, -0.13043551234033396, 0.1911189418080523, -0.00444878234637079, 0.0007784944410469416, 0.12288731882801733, 0.053540635287661, 0.04866330688693435, -0.19872312268099604, 0.22349487036164548, 0.066859225230711, 0.2386031660381369, 0.06620592271556726, 0.09635474186323516, -0.011135556219095314, 0.013067691297446555, -0.04147855151403836, -0.18888198901923542, 0.1893784946620177, 0.2786698127081534, 0.07074202611824279, 0.2520931259401747, -0.48271939287650156, -0.27078012492809744, 0.09790179453609797, 0.21352614169134884, 0.1942593274671618, -0.0659080522390804, -0.20749764294606876, 0.09946640287442049, -0.10360035832618943, -0.03431030918072137, -0.05902591943156146, 0.043011001307047436, 0.07472058954891993, -0.1919501691234407, 0.10460123483527888, 0.03469664988723879, 0.034456035852230886, -0.09455239295284054, -0.12760971190181333, -0.02226885535485774, 0.22567592031817446, 0.09142593650340296, 0.06393000851846761, 0.2621204433941727, -0.1217446246306068, -0.09240947790477458, 0.42108396306499707, -0.030798647706507, -0.18840207682653992, 0.23482707561086025, -0.1028583463709298, -0.1369026118977549, 0.19260404717076468, 0.1261574486270547, 0.13057640616819766, -0.19232668966340186, -0.016837065125949815, 0.048025612945894934, 0.22993130702944892, 0.16834564366470184, -0.03213330977890003, 0.21826676374955759, 0.20855629272960327, 0.03268318594410294, 0.17308609678435163, -0.15190019248355482, -0.18742874518733238, -0.15368170938916034, -0.21293121857384034, -0.1595022513799638, 0.057578745734382854, -0.06215029702047809, -0.16215466035043333, 0.33489812591725643, 0.07275736549471165, 0.2159868564880411, 0.023546128090406005, 0.23222515608293112, -0.012354477774351835, 0.13967237987572345, -0.017188213358691952, 0.15244547184137208, 0.061509448978294794, 0.05042129848152399, -0.2827128680309633, 0.13357799810667834, 0.0670441624347691] |
707.3607 | Algebras associated to acyclic directed graphs | We construct and study a class of algebras associated to generalized layered
graphs, i.e. directed graphs with a ranking function on their vertices. Each
finite directed acyclic graph admits countably many structures of a generalized
layered graph. We construct linear bases in such algebras and compute their
Hilbert series. Our interest to generalized layered graphs and algebras
associated to those graphs is motivated by their relations to factorizations of
polynomials over noncommutative rings.
| math.CO math.RA | we construct and study a class of algebras associated to generalized layered graphs ie directed graphs with a ranking function on their vertices each finite directed acyclic graph admits countably many structures of a generalized layered graph we construct linear bases in such algebras and compute their hilbert series our interest to generalized layered graphs and algebras associated to those graphs is motivated by their relations to factorizations of polynomials over noncommutative rings | [['we', 'construct', 'and', 'study', 'a', 'class', 'of', 'algebras', 'associated', 'to', 'generalized', 'layered', 'graphs', 'ie', 'directed', 'graphs', 'with', 'a', 'ranking', 'function', 'on', 'their', 'vertices', 'each', 'finite', 'directed', 'acyclic', 'graph', 'admits', 'countably', 'many', 'structures', 'of', 'a', 'generalized', 'layered', 'graph', 'we', 'construct', 'linear', 'bases', 'in', 'such', 'algebras', 'and', 'compute', 'their', 'hilbert', 'series', 'our', 'interest', 'to', 'generalized', 'layered', 'graphs', 'and', 'algebras', 'associated', 'to', 'those', 'graphs', 'is', 'motivated', 'by', 'their', 'relations', 'to', 'factorizations', 'of', 'polynomials', 'over', 'noncommutative', 'rings']] | [-0.18385426474301375, 0.08976045100350086, -0.017251225647656885, 0.07740903625500783, -0.18782716544906367, -0.12242490788666557, -0.017172905782314195, 0.4344823830569648, -0.3918557699310453, -0.21984358958593786, 0.08446918790426411, -0.30114752009562024, -0.1888260204498082, 0.13533350441298664, -0.1141883728129483, 0.02864269435099543, 0.07518297133405935, 0.08822414891360557, -0.09926366087763686, -0.2635850667967844, 0.39397786348445774, -0.019731365522203892, 0.20713738399902232, 0.0035874473492372525, 0.1362056241574863, 0.05140419041559304, -0.0611080601237306, 0.09825442374160845, -0.20171883153690867, 0.16892124718846116, 0.3690980932585997, 0.0952258857911172, 0.20985818016406607, -0.3886050003491444, -0.17584943531514846, 0.25560567328987055, 0.10185535275058387, 0.03380234182927094, 0.020733454894618936, -0.24047884295299038, 0.0934507554805238, -0.2233120723027889, -0.07063424766497457, -0.08081596259869737, 0.06292829026582919, 0.0681393066108584, -0.2468251129739905, -0.05616206786761137, 0.09280995840895666, 0.08963245617174735, -0.009762410068093506, -0.11276530672170937, -0.05350817524674922, 0.056796091130284006, -0.12744573177450835, -0.018686364063584846, 0.04858122251238929, -0.09520228708494607, -0.26673825131091355, 0.3589540798446699, 0.02695844275318724, -0.21386167490599703, 0.1315953821862397, -0.12762107201915693, -0.22920175170691762, 0.07842611085164221, 0.15694672183120903, 0.17141792465524416, -0.07321984567105362, 0.13433495596169226, -0.15080140473652784, 0.0070868160078072385, 0.11854548809718188, 0.0493818999353632, 0.1479760472892388, 0.0733753113803288, 0.0728953388218181, 0.22333632338128678, 0.12772324534726318, -0.07411454531223807, -0.2230994558752808, -0.10989362373948097, -0.1597493006911588, 0.066424355197902, -0.2190326084440641, -0.30607976204371207, 0.46745728328824043, 0.06891299633640949, 0.19779314433722056, 0.1475486368808436, 0.12651819054496616, 0.05247334691485365, 0.12092013390773065, 0.10218557011820886, 0.044373217338619576, 0.31042632278794907, -0.020604074864061423, -0.06402422433514914, 0.030537368940214995, 0.20816074876905713] |
707.3608 | An equivalent condition for a uniform space to be coverable | We prove that an equivalent condition for a uniform space to be coverable is
that the images of the natural projections in the fundamental inverse system
are uniformly open in a certain sense. As corollaries we (1) obtain a concrete
way to find covering entourage, (2) correct an error in [3] and (3) show that
coverable is equivalent to chain connected and uniformly joinable in the sense
of arXiv:0706.3937.
| math.GN math.AT math.MG | we prove that an equivalent condition for a uniform space to be coverable is that the images of the natural projections in the fundamental inverse system are uniformly open in a certain sense as corollaries we 1 obtain a concrete way to find covering entourage 2 correct an error in 3 and 3 show that coverable is equivalent to chain connected and uniformly joinable in the sense of arxiv07063937 | [['we', 'prove', 'that', 'an', 'equivalent', 'condition', 'for', 'a', 'uniform', 'space', 'to', 'be', 'coverable', 'is', 'that', 'the', 'images', 'of', 'the', 'natural', 'projections', 'in', 'the', 'fundamental', 'inverse', 'system', 'are', 'uniformly', 'open', 'in', 'a', 'certain', 'sense', 'as', 'corollaries', 'we', '1', 'obtain', 'a', 'concrete', 'way', 'to', 'find', 'covering', 'entourage', '2', 'correct', 'an', 'error', 'in', '3', 'and', '3', 'show', 'that', 'coverable', 'is', 'equivalent', 'to', 'chain', 'connected', 'and', 'uniformly', 'joinable', 'in', 'the', 'sense', 'of', 'arxiv07063937']] | [-0.09781950856011142, 0.12240782910521375, -0.055036985534517205, 0.10310837795259431, -0.016070897136267054, -0.1250202914165771, 0.011951856102849193, 0.4081443862660843, -0.32324546115363345, -0.24737049660111285, 0.15337335047832526, -0.24114562317674212, -0.12610575019874992, 0.21168489899376736, -0.13802698787356563, 0.011976122239823727, 0.06778377719798728, 0.08957967291901107, -0.0664929955108913, -0.2616430651396513, 0.317996655974318, -0.02851113025099039, 0.2261212740559131, 0.02647296169444042, 0.1368939639753936, -0.018155759224421617, 0.023068233749226612, 0.050117487087417804, -0.1437239432689239, 0.11279359731056235, 0.24924753069439354, 0.12030917980968404, 0.25087335979675546, -0.34711292217595174, -0.1394026777416002, 0.11534910085474086, 0.15515170318266266, 0.06868255680755657, -0.01896311734761933, -0.24539456065223716, 0.16501433639239302, -0.11451835105853046, -0.13566933205241666, -0.052219701280324334, 0.06719549388713751, 0.02889715592541239, -0.31903272042708364, 0.011024521081708372, 0.14824250217198448, 0.03155813837314353, -0.06173092402819106, -0.054831567516564116, 0.01773514791720492, 0.14461552565112737, -0.020193308228900766, 0.08349876824821181, 0.05785569873200182, -0.08820950669606271, -0.08221395233276245, 0.3753440704621265, -0.07482178054873229, -0.22900784112896552, 0.15578244248514667, -0.12569252727553248, -0.1315295394605902, 0.10757064870695639, 0.11029828443904133, 0.11267267580157803, -0.12806989022475831, 0.11261602054754108, -0.13591726381769953, 0.19191922922447488, 0.05855790167526506, 0.010842235258999555, 0.12053996099926093, 0.10621206006309127, 0.20634030334322767, 0.17067870526293785, -0.009029405855792849, -0.03923589759506285, -0.34980135295978365, -0.21751898913370335, -0.15496804154313662, 0.08556677825296954, -0.07929056236368043, -0.17962680172229953, 0.33022188589059037, 0.14262360833057594, 0.23521930332679084, 0.09450940672746476, 0.21872194393483155, 0.10678674354430233, 0.016422448919483405, 0.11571617870975066, 0.184862856321749, 0.1351696814355605, -0.0031817126950687345, -0.08793526256511755, -0.011111199239488034, 0.07211069063530029] |
707.3609 | Covering R-trees | We show that every inner metric space X is the metric quotient of a complete
R-tree via a free isometric action, which we call the covering R-tree of X. The
quotient mapping is a weak submetry (hence, open) and light. In the case of
compact 1-dimensional geodesic space X, the free isometric action is via a
subgroup of the fundamental group of X. In particular, the Sierpin'ski gasket
and carpet, and the Menger sponge all have the same covering R-tree, which is
complete and has at each point valency equal to the continuum. This latter
R-tree is of particular interest because it is "universal" in at least two
senses: First, every R-tree of valency at most the continuum can be
isometrically embedded in it. Second, every Peano continuum is the image of it
via an open light mapping. We provide a sketch of our previous construction of
the uniform universal cover in the special case of inner metric spaces, the
properties of which are used in the proof.
| math.MG math.GN math.GT | we show that every inner metric space x is the metric quotient of a complete rtree via a free isometric action which we call the covering rtree of x the quotient mapping is a weak submetry hence open and light in the case of compact 1dimensional geodesic space x the free isometric action is via a subgroup of the fundamental group of x in particular the sierpinski gasket and carpet and the menger sponge all have the same covering rtree which is complete and has at each point valency equal to the continuum this latter rtree is of particular interest because it is universal in at least two senses first every rtree of valency at most the continuum can be isometrically embedded in it second every peano continuum is the image of it via an open light mapping we provide a sketch of our previous construction of the uniform universal cover in the special case of inner metric spaces the properties of which are used in the proof | [['we', 'show', 'that', 'every', 'inner', 'metric', 'space', 'x', 'is', 'the', 'metric', 'quotient', 'of', 'a', 'complete', 'rtree', 'via', 'a', 'free', 'isometric', 'action', 'which', 'we', 'call', 'the', 'covering', 'rtree', 'of', 'x', 'the', 'quotient', 'mapping', 'is', 'a', 'weak', 'submetry', 'hence', 'open', 'and', 'light', 'in', 'the', 'case', 'of', 'compact', '1dimensional', 'geodesic', 'space', 'x', 'the', 'free', 'isometric', 'action', 'is', 'via', 'a', 'subgroup', 'of', 'the', 'fundamental', 'group', 'of', 'x', 'in', 'particular', 'the', 'sierpinski', 'gasket', 'and', 'carpet', 'and', 'the', 'menger', 'sponge', 'all', 'have', 'the', 'same', 'covering', 'rtree', 'which', 'is', 'complete', 'and', 'has', 'at', 'each', 'point', 'valency', 'equal', 'to', 'the', 'continuum', 'this', 'latter', 'rtree', 'is', 'of', 'particular', 'interest', 'because', 'it', 'is', 'universal', 'in', 'at', 'least', 'two', 'senses', 'first', 'every', 'rtree', 'of', 'valency', 'at', 'most', 'the', 'continuum', 'can', 'be', 'isometrically', 'embedded', 'in', 'it', 'second', 'every', 'peano', 'continuum', 'is', 'the', 'image', 'of', 'it', 'via', 'an', 'open', 'light', 'mapping', 'we', 'provide', 'a', 'sketch', 'of', 'our', 'previous', 'construction', 'of', 'the', 'uniform', 'universal', 'cover', 'in', 'the', 'special', 'case', 'of', 'inner', 'metric', 'spaces', 'the', 'properties', 'of', 'which', 'are', 'used', 'in', 'the', 'proof']] | [-0.12019299423610348, 0.10605599443919173, -0.10522861808671483, 0.038695682670333464, -0.07570464985301009, -0.11010370366663362, 0.010949681307898746, 0.4166506287542039, -0.3016728202215052, -0.19266905791508698, 0.1458985494003476, -0.2908183232274106, -0.12958761192359297, 0.1719927768191112, -0.11925028008408844, -0.01430530949333583, 0.04145402916834601, 0.14273933585545387, -0.05790968042076981, -0.25606635752843604, 0.36318492998612956, -0.016556160031108276, 0.22504924502157206, 0.05722216013929851, 0.12348022233206957, 0.006093423932768582, -0.004099311406857201, 0.0442544223537663, -0.12662395793783313, 0.12770986433419498, 0.22589969329558135, 0.101324483197892, 0.2150070084649737, -0.3164178831670835, -0.2085467825289968, 0.1565681736295422, 0.1074193948020582, -0.005551051297862571, -0.009281785227358341, -0.2538803576552753, 0.10990530156552614, -0.0911860156324803, -0.12550482429963136, -0.007176216700047787, 0.07855478884829652, -0.045474102842577156, -0.19915236461175873, -0.0470183751229862, 0.1278829189167092, 0.0454195010520163, -0.056993564597741214, -0.05293442474378805, -0.07849476214115773, 0.14449365427329516, -0.03122127093402447, 0.11917805652289341, 0.10212913564291307, -0.04629001709205719, -0.08647093069296152, 0.42500108168903916, -0.08212116481861033, -0.21311619912185484, 0.15965908868349202, -0.17394514461990357, -0.17262101941464825, 0.16731980133045, 0.11854585879163573, 0.15960076634517117, -0.09756015057099007, 0.2166178936867731, -0.14961720986424812, 0.15387435299791313, 0.09501070474618159, 0.023382665270695553, 0.14640255993609094, 0.18510919338968096, 0.14200333726087896, 0.19016104873610726, -0.02944849397144502, -0.018127570852811914, -0.362082122048984, -0.1980417380817969, -0.17380301871716733, 0.08539655620032656, -0.147153862280469, -0.2007866485731765, 0.3628443766612604, 0.05949643214089086, 0.18424385075091518, 0.034890130912702134, 0.2502879379538908, 0.06136752692968696, 0.06508972424004848, 0.1359089425726173, 0.1647778492576132, 0.12250925363817562, -0.02754069197024884, -0.1310147765240496, -0.015104710587322535, 0.17396968145649658] |
707.361 | P-term Strings and Semi-local Strings | P-term potentials can give rise to Nielsen-Olesen or semi-local cosmic
strings. We present a general analysis of these cosmic strings where we derive
the Bogomol'nyi equations and field profiles for both types of string and
discuss their stability. We give an analysis of the fermionic zero modes that
could live on the strings and a brief discussion of the inflationary period
preceding their formation.
| hep-th | pterm potentials can give rise to nielsenolesen or semilocal cosmic strings we present a general analysis of these cosmic strings where we derive the bogomolnyi equations and field profiles for both types of string and discuss their stability we give an analysis of the fermionic zero modes that could live on the strings and a brief discussion of the inflationary period preceding their formation | [['pterm', 'potentials', 'can', 'give', 'rise', 'to', 'nielsenolesen', 'or', 'semilocal', 'cosmic', 'strings', 'we', 'present', 'a', 'general', 'analysis', 'of', 'these', 'cosmic', 'strings', 'where', 'we', 'derive', 'the', 'bogomolnyi', 'equations', 'and', 'field', 'profiles', 'for', 'both', 'types', 'of', 'string', 'and', 'discuss', 'their', 'stability', 'we', 'give', 'an', 'analysis', 'of', 'the', 'fermionic', 'zero', 'modes', 'that', 'could', 'live', 'on', 'the', 'strings', 'and', 'a', 'brief', 'discussion', 'of', 'the', 'inflationary', 'period', 'preceding', 'their', 'formation']] | [-0.2149015228205826, 0.16292409201037117, -0.12016016570851207, 0.140905238702544, -0.07786469176789979, -0.09050964216294233, 0.010843475389265222, 0.29030174217768945, -0.1977787618925504, -0.27828996791504323, 0.0964411208187812, -0.25943528294737916, -0.11129695932686445, 0.14414830602981965, -0.02397590142209083, -0.04787283719633706, 0.028111728037401917, 0.08129518351051956, -0.086442006228026, -0.3100427178433165, 0.3121373647591099, 0.05332533891487401, 0.263210378747317, 0.061412893708620686, 0.031887710363662336, -0.015845262314542197, -0.07394784276630162, -0.007816213197656907, -0.2323933981575692, 0.1036180459705065, 0.1863113955623703, 0.16344924300938146, 0.12974291946738958, -0.542525265365839, -0.21888290683273226, 0.1177543568337569, 0.19542655991972424, 0.2074270970042562, -0.05489314851183735, -0.26039409880468156, 0.07885699541657232, -0.1323182745691156, -0.12949477571237367, -0.11648118407174479, 0.046745165449465276, 0.05512766078754794, -0.18703163671307266, 0.08700184249028098, 0.06105540075805038, 0.030527886279742233, -0.12430290426982538, -0.063638663456004, 0.016058540662925225, 0.06029906058029155, 0.10612665075677796, 0.027632597419142257, 0.10070713372988394, -0.13707550478102348, -0.13872297205671202, 0.3513952957109723, -0.11700621740601491, -0.1428786199830938, 0.19936405299995386, -0.08368346854695119, -0.13444977803737856, 0.06086853449232876, 0.16134246531873941, 0.1160786936088698, -0.11486229961155914, 0.11731757851248403, 0.023226811856147833, 0.12898972773109563, 0.11363325220008846, 0.058993157347686065, 0.3447128775296733, 0.10240699441055767, 0.027706091565050883, 0.13917102917912416, -0.059966471260850085, -0.08416063019103603, -0.39875039373873733, -0.11852764841751195, -0.04548644187161699, 0.09142059387886547, -0.10584199751542656, -0.2615938469170942, 0.4297885519335978, 0.09320816268882481, 0.19426829658186762, 0.08212638784607407, 0.1969630238309037, 0.09427198395133018, -0.02950407230014207, 0.039619816379854456, 0.215203141910024, 0.1386457616754342, 0.11827796664874768, -0.2081373176897614, -0.09186713187227724, 0.10826667255605571] |
707.3611 | Improved Landau gauge fixing and the suppression of finite-volume
effects of the lattice gluon propagator | For the gluon propagator of pure SU(2) lattice gauge theory in the Landau
gauge we investigate the effect of Gribov copies and finite-volume effects.
Concerning gauge fixing, we enlarge the accessible gauge orbits by adding
non-periodic Z(2) gauge transformations and systematically employ the simulated
annealing algorithm. Strategies to keep all Z(2) sectors under control within
reasonable CPU time are discussed. We demonstrate that the finite-volume
effects in the infrared regime become ameliorated. Reaching a physical volume
of about (6.5 fm)^4, we find that the propagator, calculated with the indicated
improvements, becomes flat in the region of smallest momenta. First signs in 4d
of a final decrease towards vanishing momentum are discussed.
| hep-lat | for the gluon propagator of pure su2 lattice gauge theory in the landau gauge we investigate the effect of gribov copies and finitevolume effects concerning gauge fixing we enlarge the accessible gauge orbits by adding nonperiodic z2 gauge transformations and systematically employ the simulated annealing algorithm strategies to keep all z2 sectors under control within reasonable cpu time are discussed we demonstrate that the finitevolume effects in the infrared regime become ameliorated reaching a physical volume of about 65 fm4 we find that the propagator calculated with the indicated improvements becomes flat in the region of smallest momenta first signs in 4d of a final decrease towards vanishing momentum are discussed | [['for', 'the', 'gluon', 'propagator', 'of', 'pure', 'su2', 'lattice', 'gauge', 'theory', 'in', 'the', 'landau', 'gauge', 'we', 'investigate', 'the', 'effect', 'of', 'gribov', 'copies', 'and', 'finitevolume', 'effects', 'concerning', 'gauge', 'fixing', 'we', 'enlarge', 'the', 'accessible', 'gauge', 'orbits', 'by', 'adding', 'nonperiodic', 'z2', 'gauge', 'transformations', 'and', 'systematically', 'employ', 'the', 'simulated', 'annealing', 'algorithm', 'strategies', 'to', 'keep', 'all', 'z2', 'sectors', 'under', 'control', 'within', 'reasonable', 'cpu', 'time', 'are', 'discussed', 'we', 'demonstrate', 'that', 'the', 'finitevolume', 'effects', 'in', 'the', 'infrared', 'regime', 'become', 'ameliorated', 'reaching', 'a', 'physical', 'volume', 'of', 'about', '65', 'fm4', 'we', 'find', 'that', 'the', 'propagator', 'calculated', 'with', 'the', 'indicated', 'improvements', 'becomes', 'flat', 'in', 'the', 'region', 'of', 'smallest', 'momenta', 'first', 'signs', 'in', '4d', 'of', 'a', 'final', 'decrease', 'towards', 'vanishing', 'momentum', 'are', 'discussed']] | [-0.14791225661053783, 0.23826178659995398, -0.09883161836832359, 0.10636191278159081, -0.02872366044116584, -0.09620683580460782, 0.07654003155740767, 0.39872432204785646, -0.15514777574755317, -0.27418276220706905, 0.06056776466393457, -0.2534263263590768, -0.0790551805130399, 0.08662213098786369, -0.025100019655239832, 0.03912524099939981, 0.03410256054747413, -0.014025474423416765, -0.11458394556046203, -0.30373392866605575, 0.3049431210824263, 0.034463024299658904, 0.24401924183575419, 0.08289727055717276, 0.09993692028529204, 0.035809391992049175, -0.0782830814835154, 0.009887607923398415, -0.13510762125336007, -0.011143837421964686, 0.18953792487380203, -0.00344626881131852, 0.20200518467190867, -0.3863169954636613, -0.1855397492705903, 0.07618694237710254, 0.15685144175884422, 0.15876241493131127, -0.03977388512712341, -0.284936178551131, 0.05907588710941307, -0.1634165780505518, -0.1833643225107661, -0.10050559823132783, -0.028952032906582225, -0.10277325574409317, -0.23488159503720635, 0.09939079446013312, -0.05073433601809246, 0.06031803904218717, -0.0625683414093785, -0.14670041855424643, -0.09510222988136045, 0.09387990367087024, 0.10407872548377192, 0.060780536500854535, 0.15290397554932283, -0.16731195093912854, -0.11885364808410674, 0.42577944549958446, -0.040935815446213025, -0.20847111494859327, 0.12954878842307105, -0.18473099488848904, -0.16750971775141185, 0.15408188174268952, 0.12008426451283666, 0.0993675380894864, -0.11989691159645985, 0.16743735391709552, -0.002521586705099892, 0.14986564942031494, 0.09914889971322909, 0.08596332409830244, 0.18314977156350742, 0.11073776505476383, 0.03801245323323586, 0.16228081238495926, -0.029793115827749978, -0.16121895551295565, -0.3646942769168868, -0.10141257628974681, -0.11045493530675869, 0.07015977387089987, -0.1161710165631391, -0.1341671740535546, 0.34750740204912584, 0.18495505525801867, 0.18014609858788014, 0.05874360393447516, 0.2390544405217526, 0.11313094182762208, 0.11213858522525108, 0.06603347727827527, 0.24776168540120125, 0.13176707109763613, 0.07803057409353084, -0.3084375516989747, -0.10891040373039809, 0.08875077048752893] |
707.3612 | Comment on Nongeometric Conditional Phase Shift via Adiabatic Evolution
of Dark Eigenstate | In a recent letter [Phy. Rev. Lett. 95, 080502 (2005)], it is claimed that
based on a new kind of quantum mechanical phase of wave function which is
neither dynamical nor geometrical a new kind of phase gate for quantum
computation is discovered. The origin of this phase is the adiabatic evolution
of a dark state. I would like to point out that these claims are questionable.
The so called new phase gate was based on a phase which was nothing new but has
been known for decades. It is something which has no physical meaning and is
not observable. It was also pointed out by [quant-ph/0509150v1] that [Phy. Rev.
Lett. 95, 080502 (2005)] was incorrect and the phase is the known geometric
phase. Here we present a totally different argument.
| quant-ph | in a recent letter phy rev lett 95 080502 2005 it is claimed that based on a new kind of quantum mechanical phase of wave function which is neither dynamical nor geometrical a new kind of phase gate for quantum computation is discovered the origin of this phase is the adiabatic evolution of a dark state i would like to point out that these claims are questionable the so called new phase gate was based on a phase which was nothing new but has been known for decades it is something which has no physical meaning and is not observable it was also pointed out by quantph0509150v1 that phy rev lett 95 080502 2005 was incorrect and the phase is the known geometric phase here we present a totally different argument | [['in', 'a', 'recent', 'letter', 'phy', 'rev', 'lett', '95', '080502', '2005', 'it', 'is', 'claimed', 'that', 'based', 'on', 'a', 'new', 'kind', 'of', 'quantum', 'mechanical', 'phase', 'of', 'wave', 'function', 'which', 'is', 'neither', 'dynamical', 'nor', 'geometrical', 'a', 'new', 'kind', 'of', 'phase', 'gate', 'for', 'quantum', 'computation', 'is', 'discovered', 'the', 'origin', 'of', 'this', 'phase', 'is', 'the', 'adiabatic', 'evolution', 'of', 'a', 'dark', 'state', 'i', 'would', 'like', 'to', 'point', 'out', 'that', 'these', 'claims', 'are', 'questionable', 'the', 'so', 'called', 'new', 'phase', 'gate', 'was', 'based', 'on', 'a', 'phase', 'which', 'was', 'nothing', 'new', 'but', 'has', 'been', 'known', 'for', 'decades', 'it', 'is', 'something', 'which', 'has', 'no', 'physical', 'meaning', 'and', 'is', 'not', 'observable', 'it', 'was', 'also', 'pointed', 'out', 'by', 'quantph0509150v1', 'that', 'phy', 'rev', 'lett', '95', '080502', '2005', 'was', 'incorrect', 'and', 'the', 'phase', 'is', 'the', 'known', 'geometric', 'phase', 'here', 'we', 'present', 'a', 'totally', 'different', 'argument']] | [-0.14535369127093312, 0.15356626439696322, -0.1577393246241487, -0.0017614539587297118, -0.13395000616661631, -0.13788932047945518, 0.129159350021599, 0.3501760508865118, -0.1529440889851405, -0.29236321475070254, 0.07682986135791557, -0.22287280820310115, -0.24125620000637493, 0.19616540308970098, -0.11264546651084227, 0.056809294388557856, -0.012317433021962643, 0.007648298524033564, -0.06797868331643538, -0.26967990598999536, 0.24257447773662325, 0.09775694764662499, 0.2725717561641851, 0.07531884584593801, 0.10046134687816867, -0.028911624218408878, 0.0012050852466088074, -0.015193273176331646, -0.13787943701379565, -0.01901541441016329, 0.17821401634181921, 0.12728687848430126, 0.2518021507493149, -0.3830110274111995, -0.25039394022180483, 0.1005872657468829, 0.07132282976705867, 0.1396997257001483, -0.03820801402549617, -0.31273708591380944, 0.07101203152515854, -0.1908452633410119, -0.09039158062973561, -0.09108661550025528, 0.11599344766268936, -0.06504574048046309, -0.21366215576955044, 0.09831303385816192, 0.081468770642935, 0.02623385152278038, 0.03149480055480336, -0.07760296563367144, -0.00878153764642775, 0.0038605522400198076, -0.03603282593942892, 0.0979578791007113, 0.0886800164500108, -0.026816733896087568, -0.12865046959083815, 0.3712646577220697, 0.007861782686534122, -0.12723976923152805, 0.2285169897869659, -0.11073622308098353, -0.15654415078102968, 0.1303000855510338, 0.07468420687274864, 0.10861333960559792, -0.2170182421660194, 0.10874339201254771, -0.08290182082687701, 0.21048653476553647, 0.08232794009113255, 0.027689932482854392, 0.23263002639779679, 0.11923031479460545, -0.006575370880846794, 0.09985894024587022, -0.10015021345864694, -0.14991006103989024, -0.318008516349185, -0.20077953591154746, -0.22885314545665797, 0.09503929877929085, 0.05635654024372343, -0.15737795104774144, 0.38889596556814815, 0.1642378822542154, 0.17833067062669075, -0.06427944388795788, 0.24445961536839605, 0.12952860034644031, 0.03384329525467295, 0.09618036803216315, 0.343508809661636, 0.12757102395407854, 0.10481608668342232, -0.12729232127491671, 0.10718663464963006, 0.04648982008489279] |
707.3613 | Critical Current 0-$\pi$ Transition in Designed Josephson Quantum Dot
Junctions | We report on quantum dot based Josephson junctions designed specifically for
measuring the supercurrent. From high-accuracy fitting of the current-voltage
characteristics we determine the full magnitude of the supercurrent (critical
current). Strong gate modulation of the critical current is observed through
several consecutive Coulomb blockade oscillations. The critical current crosses
zero close to, but not at, resonance due to the so-called 0-$\pi$ transition in
agreement with a simple theoretical model.
| cond-mat.supr-con | we report on quantum dot based josephson junctions designed specifically for measuring the supercurrent from highaccuracy fitting of the currentvoltage characteristics we determine the full magnitude of the supercurrent critical current strong gate modulation of the critical current is observed through several consecutive coulomb blockade oscillations the critical current crosses zero close to but not at resonance due to the socalled 0pi transition in agreement with a simple theoretical model | [['we', 'report', 'on', 'quantum', 'dot', 'based', 'josephson', 'junctions', 'designed', 'specifically', 'for', 'measuring', 'the', 'supercurrent', 'from', 'highaccuracy', 'fitting', 'of', 'the', 'currentvoltage', 'characteristics', 'we', 'determine', 'the', 'full', 'magnitude', 'of', 'the', 'supercurrent', 'critical', 'current', 'strong', 'gate', 'modulation', 'of', 'the', 'critical', 'current', 'is', 'observed', 'through', 'several', 'consecutive', 'coulomb', 'blockade', 'oscillations', 'the', 'critical', 'current', 'crosses', 'zero', 'close', 'to', 'but', 'not', 'at', 'resonance', 'due', 'to', 'the', 'socalled', '0pi', 'transition', 'in', 'agreement', 'with', 'a', 'simple', 'theoretical', 'model']] | [-0.21366039723423974, 0.11894505774336202, -0.00910489432779806, 0.048852597957011315, -0.03609168939292431, -0.1990927381374474, 0.12092657257869308, 0.34677988003407206, -0.21408060523016112, -0.29091374413775545, -0.009080119692121765, -0.29860712114189353, -0.11748293732692089, 0.25076034570312394, 0.017107441263007266, 0.09185716400721243, 0.008977932296693325, 0.029167591554245777, -0.11197207894708429, -0.14236768002821398, 0.31032781820478184, -0.009000815931774145, 0.3567845740488597, 0.10865929038263858, 0.05543724160109247, -0.02671261946670711, 0.09834885959114348, 0.0018623983154871634, -0.19323560232816298, -0.0008238598571291991, 0.2017598545311817, -0.08176245687396398, 0.17655706544007574, -0.4869818107091955, -0.1370194785296917, 0.0800270401972479, 0.1876988039884184, 0.1548201113323947, -0.0277621395703006, -0.294892439472356, 0.05320302926536117, -0.12492297126778534, -0.07233752443322114, -0.054598625656217335, 0.010719302263376968, 0.029978594157312598, -0.2458544423604118, 0.08858330092792, 0.009229792762614255, 0.095395934262446, -0.00908952790944438, -0.08235735141539148, 0.005748742233429636, 0.09642347928269633, -0.013200115352602942, 0.040101478548188296, 0.17969770531635731, -0.14159298508561083, -0.12303328424126708, 0.2703596305501248, -0.09438812517494495, -0.06647935351356864, 0.1335249945371678, -0.24171381599402852, -0.03955099834794445, 0.13494812351252353, 0.06668168356908219, 0.05848666229617915, -0.1376939925298627, 0.03258992489427328, 0.039345745582665716, 0.16020300710640314, 0.04652855961716601, 0.02351922007583198, 0.3131620014418981, 0.22168878020186508, 0.04972455245525842, 0.10412788906001619, -0.1688035876057776, -0.11315308442073209, -0.31839813989187987, -0.08184721445265625, -0.19256646521389484, 0.08677773980577642, -0.02053226114782904, -0.20973846216553024, 0.46481059857386364, 0.23733546112530998, 0.2362227151802342, -0.014472719697680856, 0.3326601554307022, 0.22352946270257235, 0.08357493612649185, -0.007668258469285709, 0.29265926133043, 0.16388465146135006, 0.1170516820192071, -0.3485373361468581, 0.0652633236654635, -0.026660815393552185] |
707.3614 | Terahertz spectroscopy of electromagnons in Eu_{1-x}Y_xMnO_3 | Dielectric permittivity spectra of yttrium-doped EuMnO$_3$ in the composition
range 0 =< x =< 0.5 have been investigated in the terahertz frequency range.
Magnetoelectric contributions to the permittivity were observed in all
compositions for ac electric fields parallel to the crystallographic a-axis.
Well defined electromagnons exist for x >= 0.2 close to \nu ~ 20 cm^{-1} and
with dielectric strength strongly increasing on doping. In addition to
electromagnons, a broad contribution of magnetoelectric origin is observed for
all compositions. For Eu_{0.8}Y_{0.2}MnO_3 the electromagnons can be suppressed
by external magnetic fields which induce a canted antiferromagnetic phase.
Magnetoelectric effects in the different doping regimes are discussed in
detail.
| cond-mat.str-el cond-mat.mtrl-sci | dielectric permittivity spectra of yttriumdoped eumno_3 in the composition range 0 x 05 have been investigated in the terahertz frequency range magnetoelectric contributions to the permittivity were observed in all compositions for ac electric fields parallel to the crystallographic aaxis well defined electromagnons exist for x 02 close to nu 20 cm1 and with dielectric strength strongly increasing on doping in addition to electromagnons a broad contribution of magnetoelectric origin is observed for all compositions for eu_08y_02mno_3 the electromagnons can be suppressed by external magnetic fields which induce a canted antiferromagnetic phase magnetoelectric effects in the different doping regimes are discussed in detail | [['dielectric', 'permittivity', 'spectra', 'of', 'yttriumdoped', 'eumno_3', 'in', 'the', 'composition', 'range', '0', 'x', '05', 'have', 'been', 'investigated', 'in', 'the', 'terahertz', 'frequency', 'range', 'magnetoelectric', 'contributions', 'to', 'the', 'permittivity', 'were', 'observed', 'in', 'all', 'compositions', 'for', 'ac', 'electric', 'fields', 'parallel', 'to', 'the', 'crystallographic', 'aaxis', 'well', 'defined', 'electromagnons', 'exist', 'for', 'x', '02', 'close', 'to', 'nu', '20', 'cm1', 'and', 'with', 'dielectric', 'strength', 'strongly', 'increasing', 'on', 'doping', 'in', 'addition', 'to', 'electromagnons', 'a', 'broad', 'contribution', 'of', 'magnetoelectric', 'origin', 'is', 'observed', 'for', 'all', 'compositions', 'for', 'eu_08y_02mno_3', 'the', 'electromagnons', 'can', 'be', 'suppressed', 'by', 'external', 'magnetic', 'fields', 'which', 'induce', 'a', 'canted', 'antiferromagnetic', 'phase', 'magnetoelectric', 'effects', 'in', 'the', 'different', 'doping', 'regimes', 'are', 'discussed', 'in', 'detail']] | [-0.20124780186129235, 0.26269872002026967, 0.06843491289580222, -0.020500253594369803, -0.08609396203577814, -0.10965803784714771, 0.036543293307433916, 0.5018240165813724, -0.2723749570437882, -0.2798860716532067, -0.031064415896901548, -0.3020787963754322, -0.08602927410560153, 0.19756980122777051, 0.07395365948576739, -0.04203116185594313, -0.14965857566325086, -0.05033030477813491, -0.07189772242569539, -0.17919892324411338, 0.2240941672226285, -0.023160998036365697, 0.27902610544668566, 0.08626979212783793, 0.007082516760888076, -0.056533075970514574, 0.14724999618264709, 0.05645651881131205, -0.13452362243805338, -0.01584770607457745, 0.35270453685212255, -0.10597361749416162, 0.14694805045861123, -0.33577506999383766, -0.21185735444824147, 0.021098702016406425, 0.11617495855639255, 0.06896012184546689, -0.05400995213635229, -0.2510052718554098, 0.10085137458610358, -0.09267978281667917, -0.11675727065470494, -0.12617366514768047, 0.0395848362909464, 0.03229412191206276, -0.2813450178906026, 0.07260926274379881, 0.03266806537077974, 0.15564891646182774, -0.17029013206702795, -0.22412383609847858, -0.05400192359748232, 0.05016034747483117, 0.10885921862704845, 0.10022518115745176, 0.18360006413191998, -0.06705983868329832, -0.10037925793664844, 0.35921116770789174, -0.0691380183774941, -0.10133570689929298, 0.13100839122014102, -0.2698546644867315, -0.06680292429605333, 0.21869246911552578, 0.14587864378411877, 0.11610218061919159, -0.14135997215779222, 0.11208191564442627, 0.06347125649710397, 0.18711570890085533, 0.11475209076427809, 0.11038896181657541, 0.2652846679534062, 0.12120024123607148, -0.016398038694376844, 0.13025962672366917, -0.07561001143565789, 0.014037831843194395, -0.2116817533416618, -0.12032725600673273, -0.17184818018974718, 0.04820411389743757, -0.10654720426568794, -0.19085080730774912, 0.3814932458093482, 0.16826233696100293, 0.17583540414395457, -0.07953295271525547, 0.21663075305595256, 0.09850521140333063, 0.0933467722774511, -0.007834435200853513, 0.32013219489835865, 0.2376450283111691, 0.1882804658512889, -0.2457219338001877, 0.07399121354712118, -0.05576743129041452] |
707.3615 | Two Analogs of Intrinsically Linked Graphs | A graph G is intrinsically S^1-linked if for every embedding of the vertices
of G into S^1, vertices that form the endpoints of two disjoint edges in G form
a non-split link in the embedding. We show that a graph is intrinsically
S^1-linked if and only if it is not outer-planar. A graph is outer-flat if it
can be embedded in the 3-ball such that all of its vertices map to the boundary
of the 3-ball, all edges to the interior, and every cycle bounds a disk in the
3-ball that meets the graph only along its boundary. We show that a graph is
outer-flat if and only if it is planar.
| math.GT math.CO | a graph g is intrinsically s1linked if for every embedding of the vertices of g into s1 vertices that form the endpoints of two disjoint edges in g form a nonsplit link in the embedding we show that a graph is intrinsically s1linked if and only if it is not outerplanar a graph is outerflat if it can be embedded in the 3ball such that all of its vertices map to the boundary of the 3ball all edges to the interior and every cycle bounds a disk in the 3ball that meets the graph only along its boundary we show that a graph is outerflat if and only if it is planar | [['a', 'graph', 'g', 'is', 'intrinsically', 's1linked', 'if', 'for', 'every', 'embedding', 'of', 'the', 'vertices', 'of', 'g', 'into', 's1', 'vertices', 'that', 'form', 'the', 'endpoints', 'of', 'two', 'disjoint', 'edges', 'in', 'g', 'form', 'a', 'nonsplit', 'link', 'in', 'the', 'embedding', 'we', 'show', 'that', 'a', 'graph', 'is', 'intrinsically', 's1linked', 'if', 'and', 'only', 'if', 'it', 'is', 'not', 'outerplanar', 'a', 'graph', 'is', 'outerflat', 'if', 'it', 'can', 'be', 'embedded', 'in', 'the', '3ball', 'such', 'that', 'all', 'of', 'its', 'vertices', 'map', 'to', 'the', 'boundary', 'of', 'the', '3ball', 'all', 'edges', 'to', 'the', 'interior', 'and', 'every', 'cycle', 'bounds', 'a', 'disk', 'in', 'the', '3ball', 'that', 'meets', 'the', 'graph', 'only', 'along', 'its', 'boundary', 'we', 'show', 'that', 'a', 'graph', 'is', 'outerflat', 'if', 'and', 'only', 'if', 'it', 'is', 'planar']] | [-0.18212359181294838, 0.11172298854216933, -0.0776212381940611, -0.007602931330135713, -0.127406527624569, -0.13770406569043794, 0.027517017270265905, 0.430732706596178, -0.29444878206898767, -0.24585448929833043, 0.13712129633683987, -0.34196585118425665, -0.19591158024828742, 0.10404711763409001, -0.09936948110245997, -0.06700711167973673, 0.17582401244780393, 0.1505137242169844, 0.032636239937144436, -0.24104875843800577, 0.31810471760454, -0.12319630537940948, 0.13792426218020004, 0.10681044435801192, 0.11608234826578862, -0.008460168416301409, 0.09902215721861769, 0.11882793924046887, -0.12712747892059, 0.06687481583867338, 0.22360298296229708, 0.16511459434749903, 0.21784562087419476, -0.4053243133816135, -0.1913895994959468, 0.22517391782322968, 0.12709659645851287, -0.004461198493286416, 0.025524395477043948, -0.180354505052997, 0.18411719941327143, -0.07731178449466825, -0.05365507131338947, 0.04694644270326804, 0.14129341231590067, -0.042574828512173285, -0.2508930711375325, -0.06008948201175641, 0.139713890971271, -0.03356914927199897, 0.03418209741573298, -0.047272193350147935, -0.15892112513797152, 0.1312442810912789, -0.0582119781066905, 0.1310315068975022, 0.06407375495635076, -0.13785650996336093, -0.09058875961367178, 0.39732228656282165, -0.04284249679012983, -0.2248741863052904, 0.14154219544596142, -0.19829262613388388, -0.1873482273960555, 0.12355223319631208, 0.06264998116185544, 0.1191489592332531, -0.11476453996901573, 0.1578253735513297, -0.13622125256935963, 0.15604969133036556, 0.08602237938558338, -0.035417427321792476, 0.1717730582760716, 0.13099929124884377, 0.19376958248688392, 0.14526526876444998, -0.005855995463207364, 0.05596515047363937, -0.34241151754502896, -0.18067641190632625, -0.2590623329505669, 0.05776321152195494, -0.1605115844950315, -0.2209945667731248, 0.4192769486937862, 0.08883345369853217, 0.243537809777384, 0.05150568032964926, 0.2917163760608269, 0.07497783704591846, 0.09003107483968725, 0.25116106943675764, 0.17336929446362234, 0.14233876528494335, -0.09116679031608833, -0.12762407844248055, 0.051022375845436556, 0.14304944281293838] |
707.3616 | Experimental search for dynamic heterogeneities in molecular glass
formers | We have measured the linear dielectric susceptibility of two molecular glass
formers close to Tg in order to estimate the size of the dynamically correlated
clusters of molecules which are expected to govern the physics of glass
formation. This size has been shown to be related to the dynamic dielectric
susceptibility dEps(w)/dT (Eps : dielectric susceptibility, T : temperature,
w: frequency). To allow for an accurate determination of the T
derivative, we scanned the interval 192 < T < 232 K every 1 K for glycerol and
159 < T < 179 K every 0.5 K for propylene carbonate. The resolution on T
variations was about 1 mK. The result for glycerol is that the number of
correlated molecules increases by a factor 3 when T goes from 226 to 195 K. It
has been shown that the non-linear susceptibility provides a direct measurement
of dynamic correlations. To measure it, we used a standard Lockin technique
yielding the third harmonic of the current flowing out of a capacitor. We
obtained only an upper limit on the ratio of the third to the first harmonic,
due to the non-linear response of standard electronics.
| cond-mat.stat-mech | we have measured the linear dielectric susceptibility of two molecular glass formers close to tg in order to estimate the size of the dynamically correlated clusters of molecules which are expected to govern the physics of glass formation this size has been shown to be related to the dynamic dielectric susceptibility depswdt eps dielectric susceptibility t temperature w61472 frequency to allow for an accurate determination of the t derivative we scanned the interval 192 t 232 k every 1 k for glycerol and 159 t 179 k every 05 k for propylene carbonate the resolution on t variations was about 1 mk the result for glycerol is that the number of correlated molecules increases by a factor 3 when t goes from 226 to 195 k it has been shown that the nonlinear susceptibility provides a direct measurement of dynamic correlations to measure it we used a standard lockin technique yielding the third harmonic of the current flowing out of a capacitor we obtained only an upper limit on the ratio of the third to the first harmonic due to the nonlinear response of standard electronics | [['we', 'have', 'measured', 'the', 'linear', 'dielectric', 'susceptibility', 'of', 'two', 'molecular', 'glass', 'formers', 'close', 'to', 'tg', 'in', 'order', 'to', 'estimate', 'the', 'size', 'of', 'the', 'dynamically', 'correlated', 'clusters', 'of', 'molecules', 'which', 'are', 'expected', 'to', 'govern', 'the', 'physics', 'of', 'glass', 'formation', 'this', 'size', 'has', 'been', 'shown', 'to', 'be', 'related', 'to', 'the', 'dynamic', 'dielectric', 'susceptibility', 'depswdt', 'eps', 'dielectric', 'susceptibility', 't', 'temperature', 'w61472', 'frequency', 'to', 'allow', 'for', 'an', 'accurate', 'determination', 'of', 'the', 't', 'derivative', 'we', 'scanned', 'the', 'interval', '192', 't', '232', 'k', 'every', '1', 'k', 'for', 'glycerol', 'and', '159', 't', '179', 'k', 'every', '05', 'k', 'for', 'propylene', 'carbonate', 'the', 'resolution', 'on', 't', 'variations', 'was', 'about', '1', 'mk', 'the', 'result', 'for', 'glycerol', 'is', 'that', 'the', 'number', 'of', 'correlated', 'molecules', 'increases', 'by', 'a', 'factor', '3', 'when', 't', 'goes', 'from', '226', 'to', '195', 'k', 'it', 'has', 'been', 'shown', 'that', 'the', 'nonlinear', 'susceptibility', 'provides', 'a', 'direct', 'measurement', 'of', 'dynamic', 'correlations', 'to', 'measure', 'it', 'we', 'used', 'a', 'standard', 'lockin', 'technique', 'yielding', 'the', 'third', 'harmonic', 'of', 'the', 'current', 'flowing', 'out', 'of', 'a', 'capacitor', 'we', 'obtained', 'only', 'an', 'upper', 'limit', 'on', 'the', 'ratio', 'of', 'the', 'third', 'to', 'the', 'first', 'harmonic', 'due', 'to', 'the', 'nonlinear', 'response', 'of', 'standard', 'electronics']] | [-0.11719442582461456, 0.166186121106559, -0.05073128617305369, -0.021640563735475196, -0.023224111316148596, -0.11860471545546518, 0.08189483223047675, 0.37036312349727785, -0.24935658295314922, -0.31463517762882554, 0.06357661068487568, -0.3231761688164071, -0.07184141987343774, 0.16856024253850235, 0.02603736949790998, 0.059401261701208095, -0.0533049433231455, 0.08557209656346063, -0.05952642532192049, -0.23817500383238835, 0.19494428223191315, 0.04391865052900318, 0.23116699393342613, 0.08780619142065837, 0.08549092203611508, -0.026376830692322033, 0.014582256053867952, 0.03509909267861234, -0.16653995739548205, 0.05254525208052339, 0.24671542715868386, 0.027932889705129048, 0.24386823620222023, -0.33734864521734975, -0.19736741182809373, 0.07407714745141161, 0.08937684990814887, 0.060968090647846744, 0.02016971596774807, -0.21740408041058917, 0.10312181197197946, -0.12166890247380766, -0.1242914078662263, -0.05952699546342837, 0.078780149312123, 0.005484443370495801, -0.2866758584227089, 0.10771861041227923, 0.06837997595689756, 0.06403909866434254, -0.05750543776514899, -0.17122392904749847, 0.0032238908727025696, 0.1152263650331841, 0.004124931349550658, 0.0825759849673056, 0.16793513031987697, -0.09086343938732803, -0.06300396974319997, 0.36518944036620465, -0.11447798278063799, -0.09314205634164745, 0.19445954447703273, -0.20204010421319096, -0.08725370717966933, 0.21087879873609539, 0.1335781855083516, 0.11729178375516432, -0.1555111494391262, 0.042109943657756645, -0.014037653725371574, 0.2681843955575934, 0.10256460032415697, -0.009984635832749875, 0.1801297636285871, 0.17850296674157068, 0.041432835021228326, 0.163252385822884, -0.12777571519710246, -0.02614753535675371, -0.2465052927095119, -0.16858391954780888, -0.18698638701449533, 0.08905262459935014, -0.09839751186400067, -0.14523765694131094, 0.34628709406672936, 0.1302663844038287, 0.1956090597010663, 0.027971185897315634, 0.23874864492403425, 0.123794133411771, 0.09063584466892517, 0.05533829329499934, 0.23791427006590707, 0.21336600911403683, 0.14426364922268398, -0.26179268360821245, 0.039655862090275266, 0.0068989397724457694] |
707.3617 | Extraction Of Delta g/g From Hermes Data On Inclusive Charged Hadrons | Hermes has measured longitudinal double spin asymmetries as a function of
transverse momentum pT using charged inclusive hadrons from electroproduction
off a deuterium target. At pT>1 GeV, the asymmetries are sensitive to the spin
dependent gluon distribution Delta g. To extract the gluon polarization Delta
g/g, information on the background asymmetry and the subprocess kinematics has
been obtained from a Leading Order Monte Carlo model. Values for Delta g/g have
been calculated both as a function of the measured pT and x, using two
different methods, in the region pT>1.05 GeV.
| hep-ex | hermes has measured longitudinal double spin asymmetries as a function of transverse momentum pt using charged inclusive hadrons from electroproduction off a deuterium target at pt1 gev the asymmetries are sensitive to the spin dependent gluon distribution delta g to extract the gluon polarization delta gg information on the background asymmetry and the subprocess kinematics has been obtained from a leading order monte carlo model values for delta gg have been calculated both as a function of the measured pt and x using two different methods in the region pt105 gev | [['hermes', 'has', 'measured', 'longitudinal', 'double', 'spin', 'asymmetries', 'as', 'a', 'function', 'of', 'transverse', 'momentum', 'pt', 'using', 'charged', 'inclusive', 'hadrons', 'from', 'electroproduction', 'off', 'a', 'deuterium', 'target', 'at', 'pt1', 'gev', 'the', 'asymmetries', 'are', 'sensitive', 'to', 'the', 'spin', 'dependent', 'gluon', 'distribution', 'delta', 'g', 'to', 'extract', 'the', 'gluon', 'polarization', 'delta', 'gg', 'information', 'on', 'the', 'background', 'asymmetry', 'and', 'the', 'subprocess', 'kinematics', 'has', 'been', 'obtained', 'from', 'a', 'leading', 'order', 'monte', 'carlo', 'model', 'values', 'for', 'delta', 'gg', 'have', 'been', 'calculated', 'both', 'as', 'a', 'function', 'of', 'the', 'measured', 'pt', 'and', 'x', 'using', 'two', 'different', 'methods', 'in', 'the', 'region', 'pt105', 'gev']] | [-0.03085153792312162, 0.22107674665749072, -0.14782600940412116, 0.14452530439529154, -0.014274337360014518, -0.10405701467146476, -0.02315437423530966, 0.40661642973621687, -0.21314999589489567, -0.26657895884580085, -0.062014381081745444, -0.36334430625041325, 0.08437508946388132, 0.16022258528973907, 0.13737612934492063, 0.07874841476263504, 0.04037439771410492, 0.0033738207589421006, -0.08948651329459002, -0.12183835371462111, 0.2864530890248716, 0.02974509995482448, 0.2304724741106232, 0.14831606736406683, 0.12092232518415484, 0.07897997779461245, -0.04064920255396929, -0.022816997544012136, -0.13907886653000281, -0.014008032939293319, 0.22958875771922369, -0.008842431307615091, 0.10406207537485493, -0.31661884296271536, -0.1288145451172669, 0.12506228821973006, 0.17223225937017964, 0.061053230137460765, -0.030354565429863416, -0.2614525631794499, 0.06128675331775513, -0.22207242469820712, -0.12180935111310746, -0.06965801974034144, 0.03770242975636696, -0.013385333752052652, -0.35682499025844866, 0.07453179041557531, -0.07545313172870212, 0.030977308708760472, 0.05149365685259302, -0.2684659401886165, -0.13450156660077886, 0.05232933313624623, 0.09872654921426956, 0.19546661884394578, 0.1959176007244322, -0.15720886405712614, -0.15184211778040563, 0.3148298014783197, -0.04784414945040933, -0.20722353503935867, 0.06285049624534117, -0.27919910463194053, -0.12836976974116018, 0.19280595814343543, 0.20735068265607373, 0.16190730049856938, -0.1816457028552476, 0.12194201639827548, -0.013369611562747094, 0.14781656610624244, 0.11051118671117971, 0.048322107042703365, 0.1963029938749969, 0.17455662495663596, -0.05260403570266337, 0.06782215306690584, -0.2099826628956685, -0.052663922599620286, -0.3213690483942628, -0.06521248371185114, -0.12602952270147702, 0.11044031135323974, -0.09952453392939384, -0.05258550819837385, 0.3650099252247148, 0.06007291327025289, 0.2857059748739832, -0.04115481253506409, 0.3357272756182485, 0.12946409778928178, 0.0869454930588189, 0.04901540809207493, 0.25370315155014395, 0.2320848389580432, 0.1806506539746705, -0.23972817420855994, 0.09358661039732397, 0.01355217427222265] |
707.3618 | Particle production mechanisms from RHIC to LHC | I will review RHIC data with respect to the intriguing possibility that the
hadron production mechanism in the produced partonic medium might be different
than in vacuum. I will use the measurements of collective features, such as
flow and quenching of identified particles, to show that different regions of
the particle momentum spectrum are likely populated through different
mechanisms, and that the medium seems to play an important role in
hadronization. Finally I will address the question whether the different
initial conditions achievable in heavy ion collisions at LHC energies, compared
to RHIC, might affect the properties of the deconfined quark-gluon phase and
its hadronization to baryonic matter.
| nucl-ex | i will review rhic data with respect to the intriguing possibility that the hadron production mechanism in the produced partonic medium might be different than in vacuum i will use the measurements of collective features such as flow and quenching of identified particles to show that different regions of the particle momentum spectrum are likely populated through different mechanisms and that the medium seems to play an important role in hadronization finally i will address the question whether the different initial conditions achievable in heavy ion collisions at lhc energies compared to rhic might affect the properties of the deconfined quarkgluon phase and its hadronization to baryonic matter | [['i', 'will', 'review', 'rhic', 'data', 'with', 'respect', 'to', 'the', 'intriguing', 'possibility', 'that', 'the', 'hadron', 'production', 'mechanism', 'in', 'the', 'produced', 'partonic', 'medium', 'might', 'be', 'different', 'than', 'in', 'vacuum', 'i', 'will', 'use', 'the', 'measurements', 'of', 'collective', 'features', 'such', 'as', 'flow', 'and', 'quenching', 'of', 'identified', 'particles', 'to', 'show', 'that', 'different', 'regions', 'of', 'the', 'particle', 'momentum', 'spectrum', 'are', 'likely', 'populated', 'through', 'different', 'mechanisms', 'and', 'that', 'the', 'medium', 'seems', 'to', 'play', 'an', 'important', 'role', 'in', 'hadronization', 'finally', 'i', 'will', 'address', 'the', 'question', 'whether', 'the', 'different', 'initial', 'conditions', 'achievable', 'in', 'heavy', 'ion', 'collisions', 'at', 'lhc', 'energies', 'compared', 'to', 'rhic', 'might', 'affect', 'the', 'properties', 'of', 'the', 'deconfined', 'quarkgluon', 'phase', 'and', 'its', 'hadronization', 'to', 'baryonic', 'matter']] | [-0.06316517375159526, 0.28660943840872344, -0.16447881270734663, 0.12250238847573874, -0.04289370505096115, -0.09920793390591387, -0.0473463405009911, 0.3667528762965015, -0.25592994265241065, -0.2649977443965057, 0.009620611741276527, -0.3235026124554376, 0.011769551417307445, 0.12276016283215506, 0.016303746385448094, 0.026451242509345455, 0.09310692766707183, -0.004825216110071374, -0.03412728381860048, -0.2160735750545023, 0.3485202002770233, 0.1410649057555323, 0.24654283740393887, 0.1716704762937432, 0.040145730859539645, -0.043121138061569246, -0.03996586204771625, -0.011113690919484253, -0.13193913986058894, 0.01667123585664538, 0.27281518031291113, 0.10574626702065063, 0.19766771262166677, -0.4448669480366839, -0.17737640564640364, 0.12192284573555096, 0.20606862842019094, 0.11615760404944282, -0.08144051024552297, -0.22099553636723646, 0.09373829149882551, -0.2016642784130656, -0.16487356030416708, -0.045525053994626634, -0.0061917895649525306, -0.013184258360760632, -0.26148125386572685, 0.07721336190243838, 0.00033802736423375017, -0.0009606793863457386, -0.037460644672305705, -0.15179852611618116, -0.07654353904244662, 0.06394250456381727, 0.0860582191100413, 0.042313798218620594, 0.23219506140729343, -0.22156423869374622, -0.11908392099387667, 0.43009160434896193, 3.8235554880143524e-05, -0.10378394788993453, 0.2532995491530056, -0.1937658466760897, -0.15927607319921394, 0.11553237752350806, 0.24512089976902912, 0.06211991609005189, -0.17237287811305443, -0.02696571853798728, 0.008505696620516203, 0.12167717504743686, 0.06032654038130271, 0.13306200791029604, 0.26321779129405815, 0.17187108733277354, -0.029120036926879374, 0.10115257243712593, -0.06406927462322293, -0.09405134688562679, -0.3596677132019842, -0.09913462758305724, -0.10749698097007004, 0.013172863491355977, -0.06920772079872593, -0.05560161125915194, 0.3753672293904755, 0.1891481372381181, 0.23858918018501113, -0.11808536652932633, 0.27783101055495163, 0.033135935838799924, 0.015169121141769682, 0.08898067085020658, 0.3078428140530984, 0.09544627406392936, 0.1819065287536769, -0.28587116251044253, 0.08438914233421976, 0.02502897595210622] |
707.3619 | Semi-local string comparison: algorithmic techniques and applications | A classical measure of string comparison is given by the longest common
subsequence (LCS) problem on a pair of strings. We consider its generalisation,
called the semi-local LCS problem, which arises naturally in many
string-related problems. The semi-local LCS problem asks for the LCS scores for
each of the input strings against every substring of the other input string,
and for every prefix of each input string against every suffix of the other
input string. Such a comparison pattern provides a much more detailed picture
of string similarity than a single LCS score; it also arises naturally in many
string-related problems. In fact, the semi-local LCS problem turns out to be
fundamental for string comparison, providing a powerful and flexible
alternative to classical dynamic programming. It is especially useful when the
input to a string comparison problem may not be available all at once: for
example, comparison of dynamically changing strings; comparison of compressed
strings; parallel string comparison. The same approach can also be applied to
permutation strings, providing efficient solutions for local versions of the
longest increasing subsequence (LIS) problem, and for the problem of computing
a maximum clique in a circle graph. Furthermore, the semi-local LCS problem
turns out to have surprising connections in a few seemingly unrelated fields,
such as computational geometry and algebra of semigroups. This work is devoted
to exploring the structure of the semi-local LCS problem, its efficient
solutions, and its applications in string comparison and other related areas,
including computational molecular biology.
| cs.DS cs.DM | a classical measure of string comparison is given by the longest common subsequence lcs problem on a pair of strings we consider its generalisation called the semilocal lcs problem which arises naturally in many stringrelated problems the semilocal lcs problem asks for the lcs scores for each of the input strings against every substring of the other input string and for every prefix of each input string against every suffix of the other input string such a comparison pattern provides a much more detailed picture of string similarity than a single lcs score it also arises naturally in many stringrelated problems in fact the semilocal lcs problem turns out to be fundamental for string comparison providing a powerful and flexible alternative to classical dynamic programming it is especially useful when the input to a string comparison problem may not be available all at once for example comparison of dynamically changing strings comparison of compressed strings parallel string comparison the same approach can also be applied to permutation strings providing efficient solutions for local versions of the longest increasing subsequence lis problem and for the problem of computing a maximum clique in a circle graph furthermore the semilocal lcs problem turns out to have surprising connections in a few seemingly unrelated fields such as computational geometry and algebra of semigroups this work is devoted to exploring the structure of the semilocal lcs problem its efficient solutions and its applications in string comparison and other related areas including computational molecular biology | [['a', 'classical', 'measure', 'of', 'string', 'comparison', 'is', 'given', 'by', 'the', 'longest', 'common', 'subsequence', 'lcs', 'problem', 'on', 'a', 'pair', 'of', 'strings', 'we', 'consider', 'its', 'generalisation', 'called', 'the', 'semilocal', 'lcs', 'problem', 'which', 'arises', 'naturally', 'in', 'many', 'stringrelated', 'problems', 'the', 'semilocal', 'lcs', 'problem', 'asks', 'for', 'the', 'lcs', 'scores', 'for', 'each', 'of', 'the', 'input', 'strings', 'against', 'every', 'substring', 'of', 'the', 'other', 'input', 'string', 'and', 'for', 'every', 'prefix', 'of', 'each', 'input', 'string', 'against', 'every', 'suffix', 'of', 'the', 'other', 'input', 'string', 'such', 'a', 'comparison', 'pattern', 'provides', 'a', 'much', 'more', 'detailed', 'picture', 'of', 'string', 'similarity', 'than', 'a', 'single', 'lcs', 'score', 'it', 'also', 'arises', 'naturally', 'in', 'many', 'stringrelated', 'problems', 'in', 'fact', 'the', 'semilocal', 'lcs', 'problem', 'turns', 'out', 'to', 'be', 'fundamental', 'for', 'string', 'comparison', 'providing', 'a', 'powerful', 'and', 'flexible', 'alternative', 'to', 'classical', 'dynamic', 'programming', 'it', 'is', 'especially', 'useful', 'when', 'the', 'input', 'to', 'a', 'string', 'comparison', 'problem', 'may', 'not', 'be', 'available', 'all', 'at', 'once', 'for', 'example', 'comparison', 'of', 'dynamically', 'changing', 'strings', 'comparison', 'of', 'compressed', 'strings', 'parallel', 'string', 'comparison', 'the', 'same', 'approach', 'can', 'also', 'be', 'applied', 'to', 'permutation', 'strings', 'providing', 'efficient', 'solutions', 'for', 'local', 'versions', 'of', 'the', 'longest', 'increasing', 'subsequence', 'lis', 'problem', 'and', 'for', 'the', 'problem', 'of', 'computing', 'a', 'maximum', 'clique', 'in', 'a', 'circle', 'graph', 'furthermore', 'the', 'semilocal', 'lcs', 'problem', 'turns', 'out', 'to', 'have', 'surprising', 'connections', 'in', 'a', 'few', 'seemingly', 'unrelated', 'fields', 'such', 'as', 'computational', 'geometry', 'and', 'algebra', 'of', 'semigroups', 'this', 'work', 'is', 'devoted', 'to', 'exploring', 'the', 'structure', 'of', 'the', 'semilocal', 'lcs', 'problem', 'its', 'efficient', 'solutions', 'and', 'its', 'applications', 'in', 'string', 'comparison', 'and', 'other', 'related', 'areas', 'including', 'computational', 'molecular', 'biology']] | [-0.13074296518896583, 0.04789917060664021, -0.0887146241921767, 0.16274564169126612, -0.1042168775992281, -0.1765310457743046, 0.07526152625298464, 0.36359771162488436, -0.36367389387507215, -0.28103656523737564, 0.1069211467210368, -0.2894206715328806, -0.1203805840813581, 0.1974044436164365, -0.08566491985431757, 0.05747112875311527, 0.1047928137480315, 0.07863300887635913, -0.058296824774581445, -0.23385287036740102, 0.257065000682957, 0.02828967869730599, 0.28963019865579964, -0.0017948710938729066, 0.058139684262225426, 0.03193455353663509, -0.04524590101291287, 0.07437305606622997, -0.08441233828553489, 0.14860898942497736, 0.2993492196710503, 0.17799966536596956, 0.23644519851722542, -0.44847736170669233, -0.2251068445513526, 0.14830543208927155, 0.16424016161923705, 0.13460227081329604, -0.026202452748962005, -0.1905346699732255, 0.1281926399386716, -0.11654188039985647, -0.05895623015452561, -0.015881130635461593, 0.08440401687859053, 0.01370379922305604, -0.20083136375676505, 0.016632738012407184, 0.035871153519943313, 0.013852089680880907, -0.02659964391982265, -0.09687384026289644, 0.04440908605816314, 0.08638245175486471, 0.09911454707313044, 0.13028888376410977, 0.06517230089399477, -0.14254602815032036, -0.17041323592055993, 0.44100589920059746, -0.027678225915348364, -0.20363635882963407, 0.1723658588797183, -0.010045317586990126, -0.18349877694793734, 0.10780473593454135, 0.07785533108266003, 0.14416981813120075, -0.11839134169862386, 0.12516538065579536, -0.07746490963125026, 0.17121898952355408, 0.13757440228628587, 0.05127098942717844, 0.25195007410319337, 0.18768316757655795, 0.09662754894337097, 0.17608378466941513, -0.01780741019492378, -0.11130454463053899, -0.25950629271970815, -0.11950179540138901, -0.14166227401183717, 0.036423422625331846, -0.14771876111404547, -0.22387514301542058, 0.39137616951063453, 0.10130972219593673, 0.17298391608551264, 0.06409554077195702, 0.24401347070603246, 0.05907521158808386, 0.04440049393276448, 0.08164554420881064, 0.11956035294551327, 0.12873219893628127, 0.04934138608591474, -0.18352459425370332, 0.016111517696380504, 0.11994722445895634] |
707.362 | Energy spectra stemming from interactions of Alfven waves and turbulent
eddies | We present a numerical analysis of an incompressible decaying
magnetohydrodynamic turbulence run on a grid of 1536^3 points. The Taylor
Reynolds number at the maximum of dissipation is ~1100, and the initial
condition is a superposition of large scale ABC flows and random noise at small
scales, with no uniform magnetic field. The initial kinetic and magnetic
energies are equal, with negligible correlation. The resulting energy spectrum
is a combination of two components, each moderately resolved. Isotropy obtains
in the large scales, with a spectral law compatible with the
Iroshnikov-Kraichnan theory stemming from the weakening of nonlinear
interactions due to Alfven waves; scaling of structure functions confirms the
non-Kolmogorovian nature of the flow in this range. At small scales, weak
turbulence emerges with a k_{\perp}^{-2} spectrum, the perpendicular direction
referring to the local quasi-uniform magnetic field.
| astro-ph | we present a numerical analysis of an incompressible decaying magnetohydrodynamic turbulence run on a grid of 15363 points the taylor reynolds number at the maximum of dissipation is 1100 and the initial condition is a superposition of large scale abc flows and random noise at small scales with no uniform magnetic field the initial kinetic and magnetic energies are equal with negligible correlation the resulting energy spectrum is a combination of two components each moderately resolved isotropy obtains in the large scales with a spectral law compatible with the iroshnikovkraichnan theory stemming from the weakening of nonlinear interactions due to alfven waves scaling of structure functions confirms the nonkolmogorovian nature of the flow in this range at small scales weak turbulence emerges with a k_perp2 spectrum the perpendicular direction referring to the local quasiuniform magnetic field | [['we', 'present', 'a', 'numerical', 'analysis', 'of', 'an', 'incompressible', 'decaying', 'magnetohydrodynamic', 'turbulence', 'run', 'on', 'a', 'grid', 'of', '15363', 'points', 'the', 'taylor', 'reynolds', 'number', 'at', 'the', 'maximum', 'of', 'dissipation', 'is', '1100', 'and', 'the', 'initial', 'condition', 'is', 'a', 'superposition', 'of', 'large', 'scale', 'abc', 'flows', 'and', 'random', 'noise', 'at', 'small', 'scales', 'with', 'no', 'uniform', 'magnetic', 'field', 'the', 'initial', 'kinetic', 'and', 'magnetic', 'energies', 'are', 'equal', 'with', 'negligible', 'correlation', 'the', 'resulting', 'energy', 'spectrum', 'is', 'a', 'combination', 'of', 'two', 'components', 'each', 'moderately', 'resolved', 'isotropy', 'obtains', 'in', 'the', 'large', 'scales', 'with', 'a', 'spectral', 'law', 'compatible', 'with', 'the', 'iroshnikovkraichnan', 'theory', 'stemming', 'from', 'the', 'weakening', 'of', 'nonlinear', 'interactions', 'due', 'to', 'alfven', 'waves', 'scaling', 'of', 'structure', 'functions', 'confirms', 'the', 'nonkolmogorovian', 'nature', 'of', 'the', 'flow', 'in', 'this', 'range', 'at', 'small', 'scales', 'weak', 'turbulence', 'emerges', 'with', 'a', 'k_perp2', 'spectrum', 'the', 'perpendicular', 'direction', 'referring', 'to', 'the', 'local', 'quasiuniform', 'magnetic', 'field']] | [-0.21629593281035983, 0.20441198847626818, -0.07020821624567308, 0.06675636034924537, -0.04644614797742928, -0.07809462788453161, -0.04942329970842419, 0.2893780212068711, -0.2989257497692426, -0.32046367512392704, 0.04986532080939094, -0.25375943974872556, -0.014890110640622237, 0.1713929728764068, 0.054117478758973235, 0.032663697144016623, 0.05175343969398562, -0.01665937068173662, -0.03977344110984739, -0.139584616639802, 0.33447222336989774, 0.10154762679731529, 0.29106045947821046, 0.018110053481958696, 0.10429287839317969, -0.06737219524289043, -0.009184019698295742, 0.07860477358404108, -0.12285430575909284, 0.05410898728159202, 0.1498046482438975, -0.0013724435925456312, 0.27215066664811116, -0.4230285145972362, -0.21032028710332645, 0.052579217056250745, 0.13058473801870338, 0.10463771915665883, -0.008655076838776414, -0.21599676617530778, 0.10357768617241699, -0.12556104004633037, -0.14215060230002136, -0.027620013049968025, 0.017605882415356225, 0.06404615912641234, -0.3228156149703222, 0.15394516655942425, 0.040871570639651245, 0.12137743129449732, -0.06889220292727902, -0.07092854040263988, -0.05263223999987959, 0.06747850695939954, 0.10588679215887918, 0.04826208525885116, 0.11869625140132163, -0.15984351266524754, -0.050310060812882834, 0.3881643498384887, -0.07158002786266426, -0.17310245462645338, 0.21497402153566808, -0.19464518860845334, -0.08618117189925055, 0.2008415352457258, 0.15748426675974556, 0.08201171931073879, -0.04970324388063198, 0.09887029025369831, -0.0415203464731081, 0.19859408059924402, 0.056781872137970126, 0.004585205090680735, 0.21616087174590895, 0.15412128322435925, 0.08079033279024289, 0.10013094208175864, -0.149491563475321, -0.08197907850605107, -0.3352152236792095, -0.08071782358114005, -0.22229942556484328, 0.09102532880548525, -0.14978406488562007, -0.20335109455867068, 0.3917290121727787, 0.12674170218729963, 0.209002026986769, 0.06445484822410542, 0.30240354318555224, 0.15352721145138595, 0.04511570501113858, 0.13573233495218814, 0.24983998810571126, 0.19513608054566087, 0.15154374911627896, -0.21982717054026366, -0.0008914864635752404, 0.038803678978344094] |
707.3621 | Critical Line in Random Threshold Networks with Inhomogeneous Thresholds | We calculate analytically the critical connectivity $K_c$ of Random Threshold
Networks (RTN) for homogeneous and inhomogeneous thresholds, and confirm the
results by numerical simulations. We find a super-linear increase of $K_c$ with
the (average) absolute threshold $|h|$, which approaches $K_c(|h|) \sim
h^2/(2\ln{|h|})$ for large $|h|$, and show that this asymptotic scaling is
universal for RTN with Poissonian distributed connectivity and threshold
distributions with a variance that grows slower than $h^2$. Interestingly, we
find that inhomogeneous distribution of thresholds leads to increased
propagation of perturbations for sparsely connected networks, while for densely
connected networks damage is reduced; the cross-over point yields a novel,
characteristic connectivity $K_d$, that has no counterpart in Boolean networks.
Last, local correlations between node thresholds and in-degree are introduced.
Here, numerical simulations show that even weak (anti-)correlations can lead to
a transition from ordered to chaotic dynamics, and vice versa. It is shown that
the naive mean-field assumption typical for the annealed approximation leads to
false predictions in this case, since correlations between thresholds and
out-degree that emerge as a side-effect strongly modify damage propagation
behavior.
| cond-mat.dis-nn cond-mat.stat-mech nlin.CG q-bio.MN | we calculate analytically the critical connectivity k_c of random threshold networks rtn for homogeneous and inhomogeneous thresholds and confirm the results by numerical simulations we find a superlinear increase of k_c with the average absolute threshold h which approaches k_ch sim h22lnh for large h and show that this asymptotic scaling is universal for rtn with poissonian distributed connectivity and threshold distributions with a variance that grows slower than h2 interestingly we find that inhomogeneous distribution of thresholds leads to increased propagation of perturbations for sparsely connected networks while for densely connected networks damage is reduced the crossover point yields a novel characteristic connectivity k_d that has no counterpart in boolean networks last local correlations between node thresholds and indegree are introduced here numerical simulations show that even weak anticorrelations can lead to a transition from ordered to chaotic dynamics and vice versa it is shown that the naive meanfield assumption typical for the annealed approximation leads to false predictions in this case since correlations between thresholds and outdegree that emerge as a sideeffect strongly modify damage propagation behavior | [['we', 'calculate', 'analytically', 'the', 'critical', 'connectivity', 'k_c', 'of', 'random', 'threshold', 'networks', 'rtn', 'for', 'homogeneous', 'and', 'inhomogeneous', 'thresholds', 'and', 'confirm', 'the', 'results', 'by', 'numerical', 'simulations', 'we', 'find', 'a', 'superlinear', 'increase', 'of', 'k_c', 'with', 'the', 'average', 'absolute', 'threshold', 'h', 'which', 'approaches', 'k_ch', 'sim', 'h22lnh', 'for', 'large', 'h', 'and', 'show', 'that', 'this', 'asymptotic', 'scaling', 'is', 'universal', 'for', 'rtn', 'with', 'poissonian', 'distributed', 'connectivity', 'and', 'threshold', 'distributions', 'with', 'a', 'variance', 'that', 'grows', 'slower', 'than', 'h2', 'interestingly', 'we', 'find', 'that', 'inhomogeneous', 'distribution', 'of', 'thresholds', 'leads', 'to', 'increased', 'propagation', 'of', 'perturbations', 'for', 'sparsely', 'connected', 'networks', 'while', 'for', 'densely', 'connected', 'networks', 'damage', 'is', 'reduced', 'the', 'crossover', 'point', 'yields', 'a', 'novel', 'characteristic', 'connectivity', 'k_d', 'that', 'has', 'no', 'counterpart', 'in', 'boolean', 'networks', 'last', 'local', 'correlations', 'between', 'node', 'thresholds', 'and', 'indegree', 'are', 'introduced', 'here', 'numerical', 'simulations', 'show', 'that', 'even', 'weak', 'anticorrelations', 'can', 'lead', 'to', 'a', 'transition', 'from', 'ordered', 'to', 'chaotic', 'dynamics', 'and', 'vice', 'versa', 'it', 'is', 'shown', 'that', 'the', 'naive', 'meanfield', 'assumption', 'typical', 'for', 'the', 'annealed', 'approximation', 'leads', 'to', 'false', 'predictions', 'in', 'this', 'case', 'since', 'correlations', 'between', 'thresholds', 'and', 'outdegree', 'that', 'emerge', 'as', 'a', 'sideeffect', 'strongly', 'modify', 'damage', 'propagation', 'behavior']] | [-0.13688125598604797, 0.18243994060535468, -0.06616465321421033, 0.09940447509196708, -0.00517671063705479, -0.17455601010545246, 0.0841545089954342, 0.3948987437106964, -0.24559550120963552, -0.25378548642252124, 0.04138499923118806, -0.2984292614530235, -0.21499784671212152, 0.13182197505671342, -0.005632895089706964, 0.026497113388847287, 0.06421745952684432, 0.04734162656106265, -0.04139601997768054, -0.2188098071995428, 0.29409380488184483, 0.05766612075737514, 0.3215866114307553, 0.05566528063572648, 0.03695238656153913, -0.01870761278985163, 0.03562004977342604, 0.08957652977567776, -0.15054939043625767, 0.0461068044569196, 0.21537550366153127, 0.0791852693678548, 0.2617042632865598, -0.41555946405535027, -0.25165213777625794, 0.16787645784417157, 0.17300417175579627, 0.09102162920625217, -0.006025208583848793, -0.24233886857759102, 0.14596611752482605, -0.13737892126401433, -0.13652459382326843, -0.07653546511684939, 0.07217839579124236, 0.070322470865436, -0.31956238398791453, 0.14522594268470582, 0.06840055778959377, 0.030882714114988507, 0.007694947391243304, -0.08844141111219839, -0.0326978943618488, 0.09263912016015478, 0.007229819843254682, 0.02640451685167681, 0.1299215280950743, -0.1553888876480445, -0.1062004824858264, 0.2936063134637635, -0.05699080168287662, -0.14323243652575643, 0.1966534885308195, -0.15117268599563222, -0.10714632423731399, 0.17577873762055052, 0.15874833830021912, 0.05879239470034964, -0.09979460669660382, 0.03984904872407442, 0.0031655785906533735, 0.17556168916217568, 0.07303085004270214, 0.013994913289749647, 0.11446826472499613, 0.14940469353565008, 0.12735907304611077, 0.14609489839992323, -0.07824102079622068, -0.13798340372504445, -0.25705818125273044, -0.0724940299461622, -0.1875550915950141, 0.07986496660613723, -0.14960642273369767, -0.18229273401544754, 0.349038361480307, 0.16679177486790228, 0.23632774990588679, 0.15448857705558697, 0.2380548287696063, 0.15044257285975782, 0.03810287218035783, 0.13556401500554682, 0.23269900367437404, 0.14778871214054104, 0.06693583623621886, -0.20460248756285568, 0.11980861575226957, 0.006745764764688782] |
707.3622 | Constant-degree graph expansions that preserve the treewidth | Many hard algorithmic problems dealing with graphs, circuits, formulas and
constraints admit polynomial-time upper bounds if the underlying graph has
small treewidth. The same problems often encourage reducing the maximal degree
of vertices to simplify theoretical arguments or address practical concerns.
Such degree reduction can be performed through a sequence of splittings of
vertices, resulting in an _expansion_ of the original graph. We observe that
the treewidth of a graph may increase dramatically if the splittings are not
performed carefully. In this context we address the following natural question:
is it possible to reduce the maximum degree to a constant without substantially
increasing the treewidth?
Our work answers the above question affirmatively. We prove that any simple
undirected graph G=(V, E) admits an expansion G'=(V', E') with the maximum
degree <= 3 and treewidth(G') <= treewidth(G)+1. Furthermore, such an expansion
will have no more than 2|E|+|V| vertices and 3|E| edges; it can be computed
efficiently from a tree-decomposition of G. We also construct a family of
examples for which the increase by 1 in treewidth cannot be avoided.
| cs.DM cs.DS math.CO quant-ph | many hard algorithmic problems dealing with graphs circuits formulas and constraints admit polynomialtime upper bounds if the underlying graph has small treewidth the same problems often encourage reducing the maximal degree of vertices to simplify theoretical arguments or address practical concerns such degree reduction can be performed through a sequence of splittings of vertices resulting in an _expansion_ of the original graph we observe that the treewidth of a graph may increase dramatically if the splittings are not performed carefully in this context we address the following natural question is it possible to reduce the maximum degree to a constant without substantially increasing the treewidth our work answers the above question affirmatively we prove that any simple undirected graph gv e admits an expansion gv e with the maximum degree 3 and treewidthg treewidthg1 furthermore such an expansion will have no more than 2ev vertices and 3e edges it can be computed efficiently from a treedecomposition of g we also construct a family of examples for which the increase by 1 in treewidth cannot be avoided | [['many', 'hard', 'algorithmic', 'problems', 'dealing', 'with', 'graphs', 'circuits', 'formulas', 'and', 'constraints', 'admit', 'polynomialtime', 'upper', 'bounds', 'if', 'the', 'underlying', 'graph', 'has', 'small', 'treewidth', 'the', 'same', 'problems', 'often', 'encourage', 'reducing', 'the', 'maximal', 'degree', 'of', 'vertices', 'to', 'simplify', 'theoretical', 'arguments', 'or', 'address', 'practical', 'concerns', 'such', 'degree', 'reduction', 'can', 'be', 'performed', 'through', 'a', 'sequence', 'of', 'splittings', 'of', 'vertices', 'resulting', 'in', 'an', '_expansion_', 'of', 'the', 'original', 'graph', 'we', 'observe', 'that', 'the', 'treewidth', 'of', 'a', 'graph', 'may', 'increase', 'dramatically', 'if', 'the', 'splittings', 'are', 'not', 'performed', 'carefully', 'in', 'this', 'context', 'we', 'address', 'the', 'following', 'natural', 'question', 'is', 'it', 'possible', 'to', 'reduce', 'the', 'maximum', 'degree', 'to', 'a', 'constant', 'without', 'substantially', 'increasing', 'the', 'treewidth', 'our', 'work', 'answers', 'the', 'above', 'question', 'affirmatively', 'we', 'prove', 'that', 'any', 'simple', 'undirected', 'graph', 'gv', 'e', 'admits', 'an', 'expansion', 'gv', 'e', 'with', 'the', 'maximum', 'degree', '3', 'and', 'treewidthg', 'treewidthg1', 'furthermore', 'such', 'an', 'expansion', 'will', 'have', 'no', 'more', 'than', '2ev', 'vertices', 'and', '3e', 'edges', 'it', 'can', 'be', 'computed', 'efficiently', 'from', 'a', 'treedecomposition', 'of', 'g', 'we', 'also', 'construct', 'a', 'family', 'of', 'examples', 'for', 'which', 'the', 'increase', 'by', '1', 'in', 'treewidth', 'can', 'not', 'be', 'avoided']] | [-0.1272241424457384, 0.12626462293768384, -0.03156410111382004, 0.07401381301340358, -0.15385754965780968, -0.156154459735764, 0.06652292358654219, 0.39328322093398577, -0.3176544676829215, -0.36751680208862514, 0.08412047983588779, -0.27000416291478874, -0.13462235690991062, 0.16786845883986132, -0.11181896139997066, 0.02379120904657904, 0.1368400510266723, 0.05766878171085284, -0.025325237880721014, -0.2882294267457482, 0.285690444202551, 0.020720767276763016, 0.16458054145947956, 0.12869051990002908, 0.06214468707277001, -0.01263795506433937, 0.031743401616019594, 0.08523870179772206, -0.15466223929611625, 0.09502981905457457, 0.28379095567326096, 0.17736728450192416, 0.2689833011231974, -0.4276317806229338, -0.19465835838867673, 0.21918583566579838, 0.1495220116152289, 0.0923087816657338, 0.014986765235993642, -0.19486172865251958, 0.13917220765778301, -0.1264044317980859, -0.11067619330206907, -0.046732285084074426, 0.040029668674707926, -0.025495535223048992, -0.24653406970031644, -0.02383005356662987, 0.1265525278747724, 0.03217571581852349, 0.06721425672287881, -0.15134860965391173, -0.020734746286099583, 0.0943174207323477, -0.021792976647326403, 0.06632342855124895, 0.05976669504521308, -0.12703621460743056, -0.18774997497956944, 0.34215012656882055, -0.03168818243184119, -0.19130527327939784, 0.13706410671691358, -0.1096634300554107, -0.18188275783737565, 0.1245496435159143, 0.14888885207126323, 0.1463606304913256, -0.09285258112445838, 0.13368508729437398, -0.05842200965565715, 0.1864405443768777, 0.13013560106929647, -0.005523073796755581, 0.1094477735352756, 0.11195596033572112, 0.13904369418641777, 0.15935443720483253, 0.0277088634086366, 0.016803270119881985, -0.26028642385405887, -0.10529261326481557, -0.2068931033524374, 0.07175802687954441, -0.17014669534195304, -0.1435482669722064, 0.4056598506386167, 0.12053305297573472, 0.23882649792893523, 0.09554902279158069, 0.2582346377091418, 0.13681039222497385, 0.05162685191835512, 0.15521300569358656, 0.19760351561694994, 0.12818708588321018, -0.0005295647431336258, -0.17620479102091244, 0.09609790011603471, 0.05842721930319636] |
707.3623 | Role of magnetism and electron-lattice interactions in STM spectra of
cuprates | The study of bosonic modes that couple to the charge carriers is a key
element in understanding superconductivity. Lee et al. have used
atomic-resolution scanning tunneling spectroscopy (STM) in an attempt to
extract the spectrum of of these modes in the high temperature superconductor
Bi2Sr2CaCu2O8+d and they found a mode whose frequency did not depend on doping
but changed on 16O to 18O isotopic substitution leading them to suggest a role
for lattice modes (phonons). A careful examination of their published data
reveals a weaker but distinct feature that has all the characteristics of the
magnetic excitation identified as the bosonic mode in other competing
experiments. We suggest the lattice mode seen by Lee et al. is not relevant to
superconductivity and is due to inelastic tunneling through the insulating
oxide layer.
| cond-mat.supr-con | the study of bosonic modes that couple to the charge carriers is a key element in understanding superconductivity lee et al have used atomicresolution scanning tunneling spectroscopy stm in an attempt to extract the spectrum of of these modes in the high temperature superconductor bi2sr2cacu2o8d and they found a mode whose frequency did not depend on doping but changed on 16o to 18o isotopic substitution leading them to suggest a role for lattice modes phonons a careful examination of their published data reveals a weaker but distinct feature that has all the characteristics of the magnetic excitation identified as the bosonic mode in other competing experiments we suggest the lattice mode seen by lee et al is not relevant to superconductivity and is due to inelastic tunneling through the insulating oxide layer | [['the', 'study', 'of', 'bosonic', 'modes', 'that', 'couple', 'to', 'the', 'charge', 'carriers', 'is', 'a', 'key', 'element', 'in', 'understanding', 'superconductivity', 'lee', 'et', 'al', 'have', 'used', 'atomicresolution', 'scanning', 'tunneling', 'spectroscopy', 'stm', 'in', 'an', 'attempt', 'to', 'extract', 'the', 'spectrum', 'of', 'of', 'these', 'modes', 'in', 'the', 'high', 'temperature', 'superconductor', 'bi2sr2cacu2o8d', 'and', 'they', 'found', 'a', 'mode', 'whose', 'frequency', 'did', 'not', 'depend', 'on', 'doping', 'but', 'changed', 'on', '16o', 'to', '18o', 'isotopic', 'substitution', 'leading', 'them', 'to', 'suggest', 'a', 'role', 'for', 'lattice', 'modes', 'phonons', 'a', 'careful', 'examination', 'of', 'their', 'published', 'data', 'reveals', 'a', 'weaker', 'but', 'distinct', 'feature', 'that', 'has', 'all', 'the', 'characteristics', 'of', 'the', 'magnetic', 'excitation', 'identified', 'as', 'the', 'bosonic', 'mode', 'in', 'other', 'competing', 'experiments', 'we', 'suggest', 'the', 'lattice', 'mode', 'seen', 'by', 'lee', 'et', 'al', 'is', 'not', 'relevant', 'to', 'superconductivity', 'and', 'is', 'due', 'to', 'inelastic', 'tunneling', 'through', 'the', 'insulating', 'oxide', 'layer']] | [-0.13054749173126323, 0.1817321843498741, -0.07247355070924669, 0.020337313539736595, -0.07784223741019201, -0.15284243539667153, 0.11580867924688694, 0.3887188470724857, -0.22134854719324998, -0.2752319759033801, -0.013889158582032629, -0.3436185630059547, -0.12232168811500412, 0.17484625310030286, -0.008638171232164357, 0.008174375757913698, -0.010276454837752901, -0.03440751290216929, -0.036242405133441825, -0.23840656968990737, 0.2908221778325793, 0.10129006386903877, 0.3385291442585488, 0.09382765062125117, 0.007856775975652095, 0.00222988493359563, 0.004035395958150427, -0.017238757102997184, -0.16406946065079397, 0.0444350725773609, 0.2903695387031996, -0.029193339825283285, 0.18843012664706982, -0.46560162301598623, -0.25416421192472405, 0.003499915280068914, 0.18586082071961949, 0.1546972022024971, -0.06391899867131459, -0.25533369496097846, 0.033522930281116824, -0.11133951174843153, -0.10045030274230873, -0.11909199741697221, 0.008312893622187954, -0.04113920575720399, -0.23301961980266214, 0.08158716332752991, 0.06609549624210392, 0.09431156247261573, -0.08112004444454655, -0.13231691950579372, -0.09942207846184332, 0.05061718538248291, 0.05740897530499338, 0.04553048343178957, 0.14794884321886595, -0.07856089585093838, -0.10536063097022248, 0.33151229441335256, -0.040418318785007366, -0.08602110395088058, 0.22677903970929258, -0.152561325830351, -0.08616091705819902, 0.15793002729134803, 0.08089704916699592, 0.09006998296447846, -0.13326302336116153, 0.05193219412643829, -0.026472317562861877, 0.20927388012712594, 0.08243006291255976, 0.10424475271385304, 0.23312379096662908, 0.15543849118561906, -0.010860381779352654, 0.08246473858007723, -0.12292439623045291, -0.023965628589256525, -0.1946262916687622, -0.17116366641483072, -0.19800876893185143, 0.03945595052496311, 0.015304880643794384, -0.18430302232137005, 0.39172750930866285, 0.13948114383145532, 0.21541000820103695, -0.11384962909064736, 0.22409459980994914, 0.0881978690008647, 0.11852003520030077, 0.025136092025081092, 0.28366056606208795, 0.15757061055840246, 0.11010329850427242, -0.31331093816411204, 0.06276296513775985, 0.014993895035745069] |
707.3624 | Shape-invariant quantum Hamiltonian with position-dependent effective
mass through second order supersymmetry | Second order supersymmetric approach is taken to the system describing motion
of a quantum particle in a potential endowed with position-dependent effective
mass. It is shown that the intertwining relations between second order partner
Hamiltonians may be exploited to obtain a simple shape-invariant condition.
Indeed a novel relation between potential and mass functions is derived, which
leads to a class of exactly solvable model. As an illustration of our
procedure, two examples are given for which one obtains whole spectra
algebraically. Both shape-invariant potentials exhibit harmonic-oscillator-like
or singular-oscillator-like spectra depending on the values of the
shape-invariant parameter.
| quant-ph hep-th math-ph math.MP | second order supersymmetric approach is taken to the system describing motion of a quantum particle in a potential endowed with positiondependent effective mass it is shown that the intertwining relations between second order partner hamiltonians may be exploited to obtain a simple shapeinvariant condition indeed a novel relation between potential and mass functions is derived which leads to a class of exactly solvable model as an illustration of our procedure two examples are given for which one obtains whole spectra algebraically both shapeinvariant potentials exhibit harmonicoscillatorlike or singularoscillatorlike spectra depending on the values of the shapeinvariant parameter | [['second', 'order', 'supersymmetric', 'approach', 'is', 'taken', 'to', 'the', 'system', 'describing', 'motion', 'of', 'a', 'quantum', 'particle', 'in', 'a', 'potential', 'endowed', 'with', 'positiondependent', 'effective', 'mass', 'it', 'is', 'shown', 'that', 'the', 'intertwining', 'relations', 'between', 'second', 'order', 'partner', 'hamiltonians', 'may', 'be', 'exploited', 'to', 'obtain', 'a', 'simple', 'shapeinvariant', 'condition', 'indeed', 'a', 'novel', 'relation', 'between', 'potential', 'and', 'mass', 'functions', 'is', 'derived', 'which', 'leads', 'to', 'a', 'class', 'of', 'exactly', 'solvable', 'model', 'as', 'an', 'illustration', 'of', 'our', 'procedure', 'two', 'examples', 'are', 'given', 'for', 'which', 'one', 'obtains', 'whole', 'spectra', 'algebraically', 'both', 'shapeinvariant', 'potentials', 'exhibit', 'harmonicoscillatorlike', 'or', 'singularoscillatorlike', 'spectra', 'depending', 'on', 'the', 'values', 'of', 'the', 'shapeinvariant', 'parameter']] | [-0.10511776551873864, 0.12175794795391419, -0.09650824628035097, 0.09349561554600337, -0.08474189238622784, -0.20897966247346056, -0.022147039173317975, 0.36589567449532057, -0.24596203196009522, -0.3161537562447943, 0.03300846001795052, -0.2570564599462638, -0.17325414105220452, 0.23948597415031767, -0.004922074657913886, 0.03283765927144008, 0.02994435760192573, 0.107493981897929, -0.10145994511825082, -0.21642102412879466, 0.3233449605195538, -0.010462320376628715, 0.21045011807429162, 0.03877766158333734, 0.13978079953476003, -0.011492169121476381, 0.05231973927860197, 0.01713343016117027, -0.1204685523350092, 0.10585321585868339, 0.2002162069376362, 0.03822385406513747, 0.20853329324408582, -0.32859950347950584, -0.19359255439944958, 0.15616943729845317, 0.13833452288159415, 0.12300835054514832, -0.04233970154983629, -0.28182620997295565, 0.03790093204986892, -0.20010031496027583, -0.18653776486845394, -0.11841776512171093, 0.018767065951894774, 0.008047174196690321, -0.3237204254849961, 0.07550539413258728, 0.05161345726320226, 0.008501839855077712, -0.10062926910131385, -0.06626849257460746, -0.058960232895946034, 0.11298862546927442, 0.03206868414938646, 0.0022587301160551998, 0.09499696355901266, -0.10023151465544575, -0.10771649423986673, 0.42169777479414877, -0.06218677749857306, -0.25462404936552047, 0.17858659474816369, -0.10496161650670202, -0.09207928919870602, 0.09600262750479344, 0.1422953525754182, 0.11612261464623244, -0.19277326971488565, 0.10741653608979265, -0.020948457502220807, 0.15593557610715691, 0.0296055848612205, 0.033245380710516324, 0.2017851683850351, 0.1079752620946812, 0.06745808295611488, 0.14884238182199433, -0.01646456306947297, -0.14846547810654892, -0.35073134183491533, -0.1330735521881204, -0.17949529521069243, 0.051057778504726134, -0.08152656267553347, -0.1790659896009234, 0.4362042359419559, 0.09956723878674797, 0.2370862620735639, 0.07937671973762152, 0.22356841787205714, 0.19864552751869746, 0.09238668201295169, 0.007444450568015638, 0.21250318569180213, 0.15052754695184137, 0.0383577881148085, -0.19408044161238266, -0.017558698606138165, 0.11951022109899082] |
707.3625 | Quasars with a Kick -- Black Hole Recoil in Quasars | Mergers of spinning black holes can give recoil velocities from gravitational
radiation up to several thousand km/s. A recoiling supermassive black hole in
an AGN can retain the inner part of its accretion disk, providing fuel for
continuing AGN activity. Using AGN in the Sloan Digital Sky Survey (SDSS) that
show velocity shifts of the broad emission lines relative to the narrow lines,
we place upper limits on the incidence of high velocity recoils in AGN. Brief
but powerful flares in soft X-rays may occur when bound material falls back
into the moving accretion disk.
| astro-ph | mergers of spinning black holes can give recoil velocities from gravitational radiation up to several thousand kms a recoiling supermassive black hole in an agn can retain the inner part of its accretion disk providing fuel for continuing agn activity using agn in the sloan digital sky survey sdss that show velocity shifts of the broad emission lines relative to the narrow lines we place upper limits on the incidence of high velocity recoils in agn brief but powerful flares in soft xrays may occur when bound material falls back into the moving accretion disk | [['mergers', 'of', 'spinning', 'black', 'holes', 'can', 'give', 'recoil', 'velocities', 'from', 'gravitational', 'radiation', 'up', 'to', 'several', 'thousand', 'kms', 'a', 'recoiling', 'supermassive', 'black', 'hole', 'in', 'an', 'agn', 'can', 'retain', 'the', 'inner', 'part', 'of', 'its', 'accretion', 'disk', 'providing', 'fuel', 'for', 'continuing', 'agn', 'activity', 'using', 'agn', 'in', 'the', 'sloan', 'digital', 'sky', 'survey', 'sdss', 'that', 'show', 'velocity', 'shifts', 'of', 'the', 'broad', 'emission', 'lines', 'relative', 'to', 'the', 'narrow', 'lines', 'we', 'place', 'upper', 'limits', 'on', 'the', 'incidence', 'of', 'high', 'velocity', 'recoils', 'in', 'agn', 'brief', 'but', 'powerful', 'flares', 'in', 'soft', 'xrays', 'may', 'occur', 'when', 'bound', 'material', 'falls', 'back', 'into', 'the', 'moving', 'accretion', 'disk']] | [-0.06440717847282557, 0.1258120283498245, -0.023631748503172085, 0.127380918887885, -0.16274816405616307, -0.06641680249258092, 0.049668072361045666, 0.43447665898619514, -0.15951876004079454, -0.30181632926197427, 0.0445211634701608, -0.3389894309992853, 0.07616412612168412, 0.266844426561147, -0.05806385547927532, -0.062010234820435904, 0.014767478739744738, -0.11015146509989311, -0.06048233028452255, -0.25870530224944416, 0.25740379227423354, 0.10378605496922606, 0.12352649053607724, -0.021526883723900506, 0.09177443874313643, -0.0849697842850889, -0.06112075345345626, -0.029820682586317784, -0.13774875811658077, 0.02825511364560378, 0.2774851801045435, 0.17192595917241354, 0.23829378422937894, -0.3743243078260045, -0.21328418061235233, 0.04202262872928067, 0.23979522049132931, 0.09675367208945222, -0.11595654749299253, -0.27826378248435885, 0.024643832151042787, -0.28637650306091494, -0.1615346428031396, 0.0752758205427151, 0.07626636958877114, 0.04225810928956458, -0.13140215088343737, 0.1444101305776521, 0.09197404472514265, 0.02632735666028518, -0.1399407732631325, -0.013955947354828057, -0.09610744654936226, 0.07331215463192692, 0.10027673687589796, 0.050736261379757994, 0.31775157325656006, -0.14246719122286441, -0.05405985576737868, 0.40311441960695543, -0.031152269337326288, 0.05647223938844706, 0.19893095358642504, -0.2998248949058746, -0.1253668209194745, 0.2752791782657273, 0.25602791730902696, 0.14101145720893615, -0.09590611185121815, -0.010576364280361879, -0.013360803142974251, 0.22618126569217759, 0.08485687957390359, 0.0604950780980289, 0.45179992469125674, 0.04958580141936086, 0.05042811280949727, 0.15561092730832138, -0.24738056407996306, 0.0052543126830929205, -0.2540506212138816, -0.06311727828701566, -0.09287344467041916, 0.1477009084908978, -0.14404267915279456, -0.12373819881559987, 0.30804657775320504, 0.049236939807030325, 0.2324958049765739, 0.007892002184924326, 0.3377643423567382, 0.05860134888758981, 0.06245657689379234, 0.13397741251085934, 0.413387552060579, 0.19038048159135015, 0.1091109507153497, -0.21766107676207627, 0.023818829925240655, 0.07446265605915534] |
707.3626 | Intrinsic spin-Hall accumulation in honeycomb lattices: Band structure
effects | Local spin and charge densities on a two-dimensional honeycomb lattice are
calculated by the Landauer-Keldysh formalism (LKF). Through the empirical
tight-binding method, we show how the realistic band structure can be brought
into the LKF. Taking the Bi(111) surface, on which strong surface states and
Rashba spin-orbit coupling are present [Phys. Rev. Lett. 93, 046403 (2004)], as
a numeric example, we show typical intrinsic spin-Hall accumulation (ISHA)
patterns thereon. The Fermi-energy-dependence of the spin and charge transport
in two-terminal nanostructure samples is subsequently analyzed. By changing
E_{F}, we show that the ISHA pattern is nearly isotropic (free-electron-like)
only when E_{F} is close to the band bottom, and is sensitive/insensitive to
E_{F} for the low/high bias regime with such E_{F}. With E_{F} far from the
band bottom, band structure effects thus enter the ISHA patterns and the
transport direction becomes significant.
| cond-mat.mes-hall | local spin and charge densities on a twodimensional honeycomb lattice are calculated by the landauerkeldysh formalism lkf through the empirical tightbinding method we show how the realistic band structure can be brought into the lkf taking the bi111 surface on which strong surface states and rashba spinorbit coupling are present phys rev lett 93 046403 2004 as a numeric example we show typical intrinsic spinhall accumulation isha patterns thereon the fermienergydependence of the spin and charge transport in twoterminal nanostructure samples is subsequently analyzed by changing e_f we show that the isha pattern is nearly isotropic freeelectronlike only when e_f is close to the band bottom and is sensitiveinsensitive to e_f for the lowhigh bias regime with such e_f with e_f far from the band bottom band structure effects thus enter the isha patterns and the transport direction becomes significant | [['local', 'spin', 'and', 'charge', 'densities', 'on', 'a', 'twodimensional', 'honeycomb', 'lattice', 'are', 'calculated', 'by', 'the', 'landauerkeldysh', 'formalism', 'lkf', 'through', 'the', 'empirical', 'tightbinding', 'method', 'we', 'show', 'how', 'the', 'realistic', 'band', 'structure', 'can', 'be', 'brought', 'into', 'the', 'lkf', 'taking', 'the', 'bi111', 'surface', 'on', 'which', 'strong', 'surface', 'states', 'and', 'rashba', 'spinorbit', 'coupling', 'are', 'present', 'phys', 'rev', 'lett', '93', '046403', '2004', 'as', 'a', 'numeric', 'example', 'we', 'show', 'typical', 'intrinsic', 'spinhall', 'accumulation', 'isha', 'patterns', 'thereon', 'the', 'fermienergydependence', 'of', 'the', 'spin', 'and', 'charge', 'transport', 'in', 'twoterminal', 'nanostructure', 'samples', 'is', 'subsequently', 'analyzed', 'by', 'changing', 'e_f', 'we', 'show', 'that', 'the', 'isha', 'pattern', 'is', 'nearly', 'isotropic', 'freeelectronlike', 'only', 'when', 'e_f', 'is', 'close', 'to', 'the', 'band', 'bottom', 'and', 'is', 'sensitiveinsensitive', 'to', 'e_f', 'for', 'the', 'lowhigh', 'bias', 'regime', 'with', 'such', 'e_f', 'with', 'e_f', 'far', 'from', 'the', 'band', 'bottom', 'band', 'structure', 'effects', 'thus', 'enter', 'the', 'isha', 'patterns', 'and', 'the', 'transport', 'direction', 'becomes', 'significant']] | [-0.14714300753616227, 0.16307892539686913, -0.034061737766867314, 0.03161228055714805, -0.04010677509569981, -0.1442230530420615, 0.10169289316273415, 0.41312678355683125, -0.2852484069737619, -0.30369036368674773, -0.0332759191135309, -0.31970432360886014, -0.16435654300342625, 0.18342206728361224, 0.006370782604157601, -0.00038605450021534943, 0.025661073091939306, -0.09224009262127937, -0.10591993810806383, -0.18318833107891344, 0.26991850689755403, 0.042641135502692676, 0.3214241882576945, 0.12648174044443294, -0.0013293927051194444, 0.036668548573051456, 0.12051028336830222, 0.030407841235949265, -0.14713127521210242, 0.04935419918130746, 0.20627550372475947, -0.12540165737500766, 0.19806011363634488, -0.448436827034406, -0.21075107889297162, -0.029589276308652716, 0.09557610501170806, 0.15842886175369789, -0.0144531701099249, -0.32422297759710444, 0.05971036156794677, -0.16149898240194266, -0.09142325268855886, -0.09358999745218434, 0.028415579917381747, -0.03725581617512996, -0.22381828715046193, 0.12569447670577336, 0.04212504373255955, 0.04739167825892514, -0.05283975174846263, -0.15693424147405272, -0.16371871538095825, 0.05206643388732303, 0.021195173999159666, 0.04933009009033887, 0.17136706099710494, -0.06631661330322748, -0.07594446595285789, 0.3604340931194821, -0.0637073617663059, -0.15616783005205673, 0.1450191274271819, -0.20141456203292246, -0.026782775567709537, 0.13825593350549648, 0.12006207847414349, 0.0596352127358314, -0.11956932784053514, 0.1341437183407412, -0.049078544895788924, 0.14524238153134703, 0.032290446423534035, 0.03857913652124504, 0.2618220863877323, 0.1708090441905475, 0.056264988409922174, 0.09550738276195024, -0.16781971103889678, -0.05334878382880403, -0.245527068429721, -0.12470267114103067, -0.24063829345075224, 0.08212100316945842, -0.02611675380888999, -0.15834080768020256, 0.43099302088207414, 0.1145537060574102, 0.2199471017372781, -0.02856893441302405, 0.2297566258955909, 0.16438094371730677, 0.03671428011190416, 0.11083304864334186, 0.2523468096598821, 0.14432628494957328, 0.061059690647475094, -0.27290411264993303, 0.02474091558015325, 0.0004779787580617636] |
707.3627 | Prime Ideals of q-Commutative Power Series Rings | We study the "q-commutative" power series ring R:=k_q[[x_1,...,x_n]], defined
by the relations x_ix_j = q_{ij}x_j x_i, for multiplicatively antisymmetric
scalars q_{ij} in a field k. Our results provide a detailed account of prime
ideal structure for a class of noncommutative, complete, local, noetherian
domains having arbitrarily high (but finite) Krull, global, and classical Krull
dimension. In particular, we prove that the prime spectrum of R is normally
separated and is finitely stratified by commutative noetherian spectra.
Combining this normal separation with results of Chan, Wu, Yekutieli, and
Zhang, we are able to conclude that R is catenary. Following the approach of
Brown and Goodearl, we also show that links between prime ideals are provided
by canonical automorphisms. Moreover, for sufficiently generic q_{ij}, we find
that R has only finitely many prime ideals and is a UFD (in the sense of
Chatters).
| math.RA math.QA | we study the qcommutative power series ring rk_qx_1x_n defined by the relations x_ix_j q_ijx_j x_i for multiplicatively antisymmetric scalars q_ij in a field k our results provide a detailed account of prime ideal structure for a class of noncommutative complete local noetherian domains having arbitrarily high but finite krull global and classical krull dimension in particular we prove that the prime spectrum of r is normally separated and is finitely stratified by commutative noetherian spectra combining this normal separation with results of chan wu yekutieli and zhang we are able to conclude that r is catenary following the approach of brown and goodearl we also show that links between prime ideals are provided by canonical automorphisms moreover for sufficiently generic q_ij we find that r has only finitely many prime ideals and is a ufd in the sense of chatters | [['we', 'study', 'the', 'qcommutative', 'power', 'series', 'ring', 'rk_qx_1x_n', 'defined', 'by', 'the', 'relations', 'x_ix_j', 'q_ijx_j', 'x_i', 'for', 'multiplicatively', 'antisymmetric', 'scalars', 'q_ij', 'in', 'a', 'field', 'k', 'our', 'results', 'provide', 'a', 'detailed', 'account', 'of', 'prime', 'ideal', 'structure', 'for', 'a', 'class', 'of', 'noncommutative', 'complete', 'local', 'noetherian', 'domains', 'having', 'arbitrarily', 'high', 'but', 'finite', 'krull', 'global', 'and', 'classical', 'krull', 'dimension', 'in', 'particular', 'we', 'prove', 'that', 'the', 'prime', 'spectrum', 'of', 'r', 'is', 'normally', 'separated', 'and', 'is', 'finitely', 'stratified', 'by', 'commutative', 'noetherian', 'spectra', 'combining', 'this', 'normal', 'separation', 'with', 'results', 'of', 'chan', 'wu', 'yekutieli', 'and', 'zhang', 'we', 'are', 'able', 'to', 'conclude', 'that', 'r', 'is', 'catenary', 'following', 'the', 'approach', 'of', 'brown', 'and', 'goodearl', 'we', 'also', 'show', 'that', 'links', 'between', 'prime', 'ideals', 'are', 'provided', 'by', 'canonical', 'automorphisms', 'moreover', 'for', 'sufficiently', 'generic', 'q_ij', 'we', 'find', 'that', 'r', 'has', 'only', 'finitely', 'many', 'prime', 'ideals', 'and', 'is', 'a', 'ufd', 'in', 'the', 'sense', 'of', 'chatters']] | [-0.20912060846635344, 0.09089349690433321, -0.08408234163146952, 0.051124239950339594, -0.06969408725685292, -0.20032062455741823, -0.055417964086476444, 0.3447636165858611, -0.3282633521931543, -0.18677703257434178, 0.059664349564337645, -0.2617713655007706, -0.10033719493767948, 0.2026755075186383, -0.1130032192589209, -0.053704718897200146, 0.014646586910585293, 0.058699955311949714, -0.020738658542488363, -0.32562661360092193, 0.3950556465897007, -0.018882588895064764, 0.17984418118494036, 0.029396504352706066, 0.06425918896338376, 0.012511487277494609, -0.05852359360036696, 0.07262942527650275, -0.19958814019712695, 0.0898593483000076, 0.3154880018175944, 0.08548651291124955, 0.24956645486046278, -0.35342539502797055, -0.1300562843207972, 0.16526150263076567, 0.16154253338058683, -0.02126434474400636, -0.04277902594902485, -0.2075505156704373, 0.20681817948544462, -0.21754796779039653, -0.12473111322649039, -0.1205338239737287, 0.11969307819938126, 0.06246092774318126, -0.33733155408180726, 0.029096091137245716, 0.16089707803558154, 0.1665344257110163, -0.020795476955253685, -0.10323827181254393, -0.03302898728862351, 0.05033880689744905, -0.03230578129760165, -0.005548961507831363, 0.050619330313486935, -0.06839896083144686, -0.1029784727202175, 0.31628273180483474, -0.06654567681117982, -0.18338689489620805, 0.15865341550248768, -0.22887060235834855, -0.13641701979846085, 0.10069008773543696, 0.021086188207002546, 0.1488041449945582, -0.04137828095817763, 0.22316599688349306, -0.16796845440631328, 0.10274102957581804, 0.08736719231566657, 0.030864578469291977, 0.15638521000189518, 0.05288683361162101, 0.06890607597555229, 0.11233095644190368, -0.007781257947815744, 0.020085147271553676, -0.33819832889687107, -0.16526377516582716, -0.19049944689470358, 0.12948238502249823, -0.10008055024788347, -0.10430830115776347, 0.38155398902861215, 0.08858195163075057, 0.1566244308580307, 0.09509652878066686, 0.24721269707694865, 0.026309296000323702, 0.029439553154456982, 0.11786475982112081, 0.13479999374206839, 0.2086575176934644, -0.015407675600516191, -0.1261755048763007, -0.016186339787437, 0.14655695623799186] |
707.3628 | On the type of triangle groups | We prove a conjecture of R. Schwartz about the type of some complex
hyperbolic triangle groups.
| math.DG | we prove a conjecture of r schwartz about the type of some complex hyperbolic triangle groups | [['we', 'prove', 'a', 'conjecture', 'of', 'r', 'schwartz', 'about', 'the', 'type', 'of', 'some', 'complex', 'hyperbolic', 'triangle', 'groups']] | [-0.23197546799201518, 0.03183603711659089, -0.12215025827754289, 0.147288687992841, -0.13685123214963824, -0.16982098130392842, 0.003328766324557364, 0.31504387222230434, -0.32068985514342785, -0.1912378800334409, 0.10768828392610885, -0.2379803091607755, -0.19870067288866267, 0.21316681150346994, -0.1659800349152647, -0.007476103026419878, 0.054286138038150966, 0.10142825776711106, -0.11906732496572658, -0.31469992571510375, 0.40128272911533713, -0.1515554750803858, 0.09466482163406909, 0.11003102373797446, 0.02890160121023655, 0.030984887096565217, -0.09836612519575283, -0.004967508488334715, -0.20498956710798666, 0.17324367580295075, 0.22418034682050347, 0.10055463416210841, 0.2706229325121967, -0.33650415943702683, -0.16197539256245364, 0.2190108287613839, 0.10699580033542588, -0.030304277897812426, -0.0520182089676382, -0.3232695930637419, 0.11110449238913134, -0.1316898511722684, -0.3072808935539797, 0.021371266338974237, 0.08776063448749483, 0.04787362873321399, -0.20013912627473474, 0.04207332816440612, 0.19435434974730015, 0.12060634203953668, -0.020216066332068294, -0.11791150318458676, -0.032247217546682805, 0.025077587699342985, -0.03300061554182321, -0.03004357186728157, 0.033440949307987466, -0.052100386237725616, -0.05452496791258454, 0.35946265957318246, 0.04890018067089841, -0.17975721275433898, 0.09139567235251889, -0.2362468708306551, -0.27179722348228097, 0.07524785154964775, 0.08620793907903135, 0.15725517040118575, 0.017613072821404785, 0.2353335409425199, -0.2262614948558621, 0.09741186100291088, 0.2285145606729202, -0.01987742492929101, 0.061526441655587405, 0.05653938208706677, 0.1316534767684061, 0.11835170857375488, 0.03891365125309676, -0.005234252894297242, -0.3537042113021016, -0.2916927714832127, -0.11686357349390164, 0.19933472690172493, -0.188650093623437, -0.2173252528446028, 0.36597544606775045, -0.03301263740286231, 0.12968731054570526, 0.16260535205947235, 0.07383981242310256, -0.02298940372929792, 0.004614730714820325, 0.09427945257630199, 0.061021367300782, 0.23876334354281425, -0.01455592189449817, -0.07509693969041109, -0.058979050314519554, 0.23984191939234734] |
707.3629 | Non-monotonic zero point entropy in diluted spin ice | Water ice and spin ice are important model systems in which theory can
directly account for zero point entropy associated with quenched
configurational disorder. Spin ice differs from water ice in the important
respect that its fundamental constituents, the spins of the magnetic ions, can
be removed through replacement with non-magnetic ions while keeping the lattice
structure intact. In order to investigate the interplay of frustrated
interactions and quenched disorder, we have performed systematic heat capacity
measurements on spin ice materials which have been thus diluted up to 90%.
Investigations of both Ho and Dy spin ices reveal that the zero point entropy
depends non-monotonically on dilution and approaches the value of Rln2 in the
limit of high dilution. The data are in good agreement with a generalization of
Pauling's theory for the entropy of ice.
| cond-mat.str-el cond-mat.mtrl-sci | water ice and spin ice are important model systems in which theory can directly account for zero point entropy associated with quenched configurational disorder spin ice differs from water ice in the important respect that its fundamental constituents the spins of the magnetic ions can be removed through replacement with nonmagnetic ions while keeping the lattice structure intact in order to investigate the interplay of frustrated interactions and quenched disorder we have performed systematic heat capacity measurements on spin ice materials which have been thus diluted up to 90 investigations of both ho and dy spin ices reveal that the zero point entropy depends nonmonotonically on dilution and approaches the value of rln2 in the limit of high dilution the data are in good agreement with a generalization of paulings theory for the entropy of ice | [['water', 'ice', 'and', 'spin', 'ice', 'are', 'important', 'model', 'systems', 'in', 'which', 'theory', 'can', 'directly', 'account', 'for', 'zero', 'point', 'entropy', 'associated', 'with', 'quenched', 'configurational', 'disorder', 'spin', 'ice', 'differs', 'from', 'water', 'ice', 'in', 'the', 'important', 'respect', 'that', 'its', 'fundamental', 'constituents', 'the', 'spins', 'of', 'the', 'magnetic', 'ions', 'can', 'be', 'removed', 'through', 'replacement', 'with', 'nonmagnetic', 'ions', 'while', 'keeping', 'the', 'lattice', 'structure', 'intact', 'in', 'order', 'to', 'investigate', 'the', 'interplay', 'of', 'frustrated', 'interactions', 'and', 'quenched', 'disorder', 'we', 'have', 'performed', 'systematic', 'heat', 'capacity', 'measurements', 'on', 'spin', 'ice', 'materials', 'which', 'have', 'been', 'thus', 'diluted', 'up', 'to', '90', 'investigations', 'of', 'both', 'ho', 'and', 'dy', 'spin', 'ices', 'reveal', 'that', 'the', 'zero', 'point', 'entropy', 'depends', 'nonmonotonically', 'on', 'dilution', 'and', 'approaches', 'the', 'value', 'of', 'rln2', 'in', 'the', 'limit', 'of', 'high', 'dilution', 'the', 'data', 'are', 'in', 'good', 'agreement', 'with', 'a', 'generalization', 'of', 'paulings', 'theory', 'for', 'the', 'entropy', 'of', 'ice']] | [-0.09249722504276126, 0.24963459681363448, -0.018205482874370373, 0.04059074145591106, 0.024762050454121304, -0.12678716259131975, 0.09066658567548182, 0.3465217972338638, -0.2433253073352663, -0.27883927178824225, 0.09319387628570172, -0.36788660222116637, -0.06675261134617305, 0.11768166561138488, 0.024483379171750343, 0.013267619274676476, 0.001957683337797575, 0.014665772558039273, -0.09041202796609416, -0.23247445356510604, 0.24749065464974968, 0.09091205482357456, 0.29928203944205856, 0.12105979992809486, 0.07519893371585674, -0.006781566650127335, 0.05277307064320399, 0.02398548659745275, -0.1410865900831114, 0.06872720776752483, 0.2180303091813317, -0.05081943841137485, 0.1530779342951171, -0.47318807014209385, -0.2505613758078064, 0.0742395420675166, 0.10776124389239532, 0.1493030088450349, -0.03389541573757443, -0.2171884629984989, 0.02323105061248712, -0.1458906177773743, -0.13920240382225635, -0.11052463703569682, -0.02354863435988698, 0.01860173403924016, -0.22534655943651588, 0.1252067860263838, 0.10299251249286018, 0.11310386825200969, -0.11810730768603903, -0.17495636395452654, -0.12175933974247206, 0.10943554392125567, 0.06969384939550176, 0.06242524517823339, 0.19095203911659636, -0.12456284472479157, -0.08306020928327651, 0.39170019969563274, -0.08874472326972276, -0.14506273275679527, 0.20975099036963107, -0.2082505445680855, -0.1378180370974245, 0.18727057855507798, 0.13379887065521495, 0.06930374876623425, -0.1482626967930735, 0.06306521863478017, -0.01206041399992126, 0.16163525934141088, 0.020340387188993832, 0.07319150494555181, 0.30367970326915383, 0.18673843467224607, 0.027718981988180208, 0.15727306121569948, -0.1078270848858451, -0.15885034506722792, -0.1735176080290009, -0.18564506486633464, -0.22073158668354154, 0.06393482810680699, -0.11242125206241754, -0.1362391940133153, 0.3114420712363961, 0.1775418401983402, 0.15741123464506337, -0.03952176054693101, 0.224769281449399, 0.06872857230465503, 0.08170506667503265, 0.022351880609194803, 0.2553481036927277, 0.1930817210540066, 0.10232208727906897, -0.29158042928611394, 0.12744521459407063, 0.023723830335096435] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.