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 |
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710.1153 | Verification of Ptime Reducibility for system F Terms: Type Inference
in<br> Dual Light Affine Logic | In a previous work Baillot and Terui introduced Dual light affine logic
(DLAL) as a variant of Light linear logic suitable for guaranteeing complexity
properties on lambda calculus terms: all typable terms can be evaluated in
polynomial time by beta reduction and all Ptime functions can be represented.
In the present work we address the problem of typing lambda-terms in
second-order DLAL. For that we give a procedure which, starting with a term
typed in system F, determines whether it is typable in DLAL and outputs a
concrete typing if there exists any. We show that our procedure can be run in
time polynomial in the size of the original Church typed system F term.
| cs.LO cs.CC | in a previous work baillot and terui introduced dual light affine logic dlal as a variant of light linear logic suitable for guaranteeing complexity properties on lambda calculus terms all typable terms can be evaluated in polynomial time by beta reduction and all ptime functions can be represented in the present work we address the problem of typing lambdaterms in secondorder dlal for that we give a procedure which starting with a term typed in system f determines whether it is typable in dlal and outputs a concrete typing if there exists any we show that our procedure can be run in time polynomial in the size of the original church typed system f term | [['in', 'a', 'previous', 'work', 'baillot', 'and', 'terui', 'introduced', 'dual', 'light', 'affine', 'logic', 'dlal', 'as', 'a', 'variant', 'of', 'light', 'linear', 'logic', 'suitable', 'for', 'guaranteeing', 'complexity', 'properties', 'on', 'lambda', 'calculus', 'terms', 'all', 'typable', 'terms', 'can', 'be', 'evaluated', 'in', 'polynomial', 'time', 'by', 'beta', 'reduction', 'and', 'all', 'ptime', 'functions', 'can', 'be', 'represented', 'in', 'the', 'present', 'work', 'we', 'address', 'the', 'problem', 'of', 'typing', 'lambdaterms', 'in', 'secondorder', 'dlal', 'for', 'that', 'we', 'give', 'a', 'procedure', 'which', 'starting', 'with', 'a', 'term', 'typed', 'in', 'system', 'f', 'determines', 'whether', 'it', 'is', 'typable', 'in', 'dlal', 'and', 'outputs', 'a', 'concrete', 'typing', 'if', 'there', 'exists', 'any', 'we', 'show', 'that', 'our', 'procedure', 'can', 'be', 'run', 'in', 'time', 'polynomial', 'in', 'the', 'size', 'of', 'the', 'original', 'church', 'typed', 'system', 'f', 'term']] | [-0.1371875512949397, 0.05281462333684342, -0.08191393061944868, 0.06867878840910682, -0.10340661220087678, -0.18250919353892714, 0.05598097429116281, 0.3457932591570162, -0.33857188968037344, -0.2669532232695317, 0.08017675337521771, -0.1949332319035203, -0.14761163952010395, 0.19802641838920854, -0.1323242429108153, 0.03881075129374466, 0.05498612996817163, 0.05787128564464835, -0.06491461040480968, -0.2968467906554254, 0.29025771088725105, -0.031798366795137395, 0.1711501421538734, 0.03963980134638372, 0.11016252052772428, 0.036186124404183534, 0.002351317393997338, 0.0728701115132565, -0.08576673886028378, 0.04117858248703033, 0.31605515864562345, 0.2210794050139334, 0.274257008072846, -0.4022442791610956, -0.1429300805393079, 0.1260412729188668, 0.13001147547192807, 0.07890152302261574, 0.003908017568858917, -0.24895589334882004, 0.09886722784258622, -0.16825720334046446, -0.08532060362992033, -0.08841092660775886, 0.049603857994244424, 0.012992996727610914, -0.27021711146607336, 0.012615933841242728, 0.14733661696380745, 0.06445929494612249, -0.042591257313414746, -0.061017302225500475, 0.002945683004367536, 0.0623178149210866, -0.031578996550473096, 0.07093564980350171, 0.06072284862712289, -0.06588830573039245, -0.14764372658487246, 0.35724907357707225, -0.11338900642230514, -0.2525718684464825, 0.12145676693582363, -0.07086415901631776, -0.16952507956719964, 0.07111944055052853, 0.1199821610152062, 0.1496112205549679, -0.13445791186748351, 0.1845852083890221, -0.061063111262124, 0.2392088315177676, 0.1294435248751424, 0.058812465209645774, 0.13663839507205164, 0.1577354861620146, 0.021984083462605435, 0.17732557040058175, 0.05578643946694128, -0.05179280311124713, -0.355957071445223, -0.17772034288227426, -0.12731793808000805, 0.008179927640388497, -0.09629954820855796, -0.17198295208864509, 0.37640296723858446, 0.1184571433412653, 0.1393567721268772, 0.17330228872865075, 0.25881737197514426, 0.1686154782022061, 0.07784657030463202, 0.07476865433453195, 0.1549213127628694, 0.05751165475045224, 0.08863494130247067, -0.20535587580808629, 0.12848025494032597, 0.13976300019457671] |
710.1154 | Dynamically induced scalar quark confinement: A link between chiral
symmetry breaking and confinement | Employing functional approaches the infrared behaviour of Landau gauge QCD
vertex functions is investigated. Results for the ghost-gluon, three-gluon and
quark-gluon vertex functions are presented. As can be analytically shown a
linear rising potential between heavy quarks is generated by infrared
singularities in the dressed quark-gluon vertex. The selfconsistent mechanism
that generates these singularities implies the existence of scalar Dirac
amplitudes of the full vertex and the quark propagator. These amplitudes can
only be present when chiral symmetry is broken, either explicitly or
dynamically. The corresponding relations thus constitute a novel mechanism that
directly links chiral symmetry breaking with confinement.
| hep-ph hep-lat | employing functional approaches the infrared behaviour of landau gauge qcd vertex functions is investigated results for the ghostgluon threegluon and quarkgluon vertex functions are presented as can be analytically shown a linear rising potential between heavy quarks is generated by infrared singularities in the dressed quarkgluon vertex the selfconsistent mechanism that generates these singularities implies the existence of scalar dirac amplitudes of the full vertex and the quark propagator these amplitudes can only be present when chiral symmetry is broken either explicitly or dynamically the corresponding relations thus constitute a novel mechanism that directly links chiral symmetry breaking with confinement | [['employing', 'functional', 'approaches', 'the', 'infrared', 'behaviour', 'of', 'landau', 'gauge', 'qcd', 'vertex', 'functions', 'is', 'investigated', 'results', 'for', 'the', 'ghostgluon', 'threegluon', 'and', 'quarkgluon', 'vertex', 'functions', 'are', 'presented', 'as', 'can', 'be', 'analytically', 'shown', 'a', 'linear', 'rising', 'potential', 'between', 'heavy', 'quarks', 'is', 'generated', 'by', 'infrared', 'singularities', 'in', 'the', 'dressed', 'quarkgluon', 'vertex', 'the', 'selfconsistent', 'mechanism', 'that', 'generates', 'these', 'singularities', 'implies', 'the', 'existence', 'of', 'scalar', 'dirac', 'amplitudes', 'of', 'the', 'full', 'vertex', 'and', 'the', 'quark', 'propagator', 'these', 'amplitudes', 'can', 'only', 'be', 'present', 'when', 'chiral', 'symmetry', 'is', 'broken', 'either', 'explicitly', 'or', 'dynamically', 'the', 'corresponding', 'relations', 'thus', 'constitute', 'a', 'novel', 'mechanism', 'that', 'directly', 'links', 'chiral', 'symmetry', 'breaking', 'with', 'confinement']] | [-0.14553848859737628, 0.2828857906849589, -0.13386836111079903, 0.11484129378921352, -0.13083933699410408, -0.13724611725658178, 0.015128897430840879, 0.37855659471824765, -0.21557614847784862, -0.1869633708242327, -0.010537266671890392, -0.29698369972757066, -0.157911258044187, 0.04230937893735245, 0.06304536695824936, 0.07165768290869892, 0.03496831943746656, 0.010605124742724, -0.06001820258999942, -0.22404516326263546, 0.35578308554366234, -0.03486371596343815, 0.25151762964203955, 0.1652828748547472, 0.07387825908954256, 0.03575917842448689, -0.008890165016055107, -0.0032334626419469716, -0.06165679917161469, 0.013981056798947976, 0.2204772903182311, 0.015385558833368123, 0.14469352475134656, -0.4226226990297437, -0.20925078771775588, 0.05522770107723773, 0.1729627026990056, 0.14119435243774206, -0.048556157755665484, -0.2691917016170919, 0.11079224583692848, -0.1878885209863074, -0.22106321060215123, -0.12407306918874383, -0.04721505162771791, -0.047172457742271946, -0.3081858128029853, 0.08123750415164978, -0.029101167116314174, -0.001560997162014246, 0.018118556407280266, -0.11967851096764207, -0.15359915527980775, 0.07994499441847439, 0.06809035472466349, 0.09488472367171198, 0.11079791260162893, -0.24375279114581644, -0.16642005293571857, 0.396710140700452, -0.02631181134376675, -0.19996965889818966, 0.13795367076527326, -0.13375092663802207, -0.1094469344499521, 0.13585956575814634, 0.09238606012891978, 0.11305551460944116, -0.220330405447894, 0.161242757801665, -0.0365664283093065, 0.09727768828859552, 0.1114950647437945, 0.0897548496676609, 0.26781911006197334, 0.08519155069021508, 0.0034233648655936123, 0.12274855735711754, 0.028025046372786164, -0.1011673378245905, -0.41373620077967643, -0.018554492313414814, -0.1610731861554086, 0.037804827354848386, -0.11492371014755917, -0.16821558710042153, 0.421396826133132, 0.06902753674425184, 0.18063230574131012, 0.010745610233425396, 0.2668727047229186, 0.20830874251085332, 0.13112655094824732, 0.08401760551612825, 0.2505463395640254, 0.14750591054442339, 0.05851220899261534, -0.31950316895730796, -0.033987633192155045, 0.205398424025625] |
710.1155 | A note on local trigonal fibrations | We show that some of centeral fibers of degenerations of hyperelliptic curves
are realized as those trigonal curves. In particular, any hyperelliptic curve
can be the central fiber of a degeneration of trigonal curves.
| math.AG math.GT | we show that some of centeral fibers of degenerations of hyperelliptic curves are realized as those trigonal curves in particular any hyperelliptic curve can be the central fiber of a degeneration of trigonal curves | [['we', 'show', 'that', 'some', 'of', 'centeral', 'fibers', 'of', 'degenerations', 'of', 'hyperelliptic', 'curves', 'are', 'realized', 'as', 'those', 'trigonal', 'curves', 'in', 'particular', 'any', 'hyperelliptic', 'curve', 'can', 'be', 'the', 'central', 'fiber', 'of', 'a', 'degeneration', 'of', 'trigonal', 'curves']] | [-0.31662830532613123, 0.07391123287379742, -0.18048981859376936, 0.0578480094219699, -0.07740935993691285, -0.18596644579630459, -0.005930875787850131, 0.44781321563729737, -0.29714885325820156, -0.14811144899012466, 0.1069377113775717, -0.25477133138161717, -0.22946120177706084, 0.3938876273618503, -0.24857476666908374, -0.00015384170480749825, 0.05945275152440776, -0.018067377083229298, -0.14823626754382116, -0.3968538482758132, 0.3908532577933687, -0.13607386731062876, 0.1987456064389059, 0.009201777421615341, 0.009317007198026686, 0.049080998058233294, 0.12686625283888794, -0.04012790771031922, -0.1120130417413858, 0.18108968916490223, 0.3432227954494231, 0.02335473828751481, 0.007927547999177918, -0.34703556211157277, -0.26312809019829286, 0.24988492995952116, 0.1178778819880928, 0.09181274682509177, 0.031681806836841686, -0.12085959433831951, 0.06344536192376506, -0.08312736282294447, -0.2929935824182449, -0.09693893857977608, -0.01850352075063821, 0.17315709878775207, -0.04703960138739961, -0.07521161566855329, 0.08169260135654247, 0.25760767649802746, -0.001126960442034584, -0.09031571078142434, -0.2216039728937727, 0.0052724016096555824, 0.04807986714171641, 0.04858451820627758, 0.08310942449183627, -0.1668169071446314, -0.06416320179899533, 0.427354294496278, -0.10989264387524489, -0.0852810972454873, 0.007163881042012663, -0.1521364146787109, -0.10709730012229446, 0.19614947931558796, 0.16772893140318268, 0.1742588465073795, -0.03773763053344958, 0.12675000735643235, -0.06671287311297475, 0.09148675711317496, 0.15136818267461477, -0.081656675771669, 0.17669122708453375, 0.05514864859904981, -0.01400337927043438, 0.1287661798256026, -0.10562821319608977, 0.0022008429196747866, -0.38826345268524054, -0.25497921347392327, -0.09546036840501157, 0.1523501161824573, -0.19522797561843286, -0.149481268712517, 0.460733414260727, -0.08971644984558225, 0.25913349589840934, 0.03318193879430041, 0.15698982549436163, 0.05064974281809886, 0.08367461428949327, 0.02779132119295272, 0.22506650510882592, 0.1270341162823818, -0.0985021550546993, -0.16238591919483786, -0.0014949868941171603, 0.11282912706674049] |
710.1156 | Eigenmode of Decision-By-Majority Process on Complex Networks | The nature of dynamics of opinion formation modeled as a decision-by-majority
process in complex networks is investigated using eigenmode analysis.
Hamiltonian of the system is defined, and estimated by eigenvectors of the
adjacency matrix constructed from several network models. The eigenmodes of
initial and final state of the dynamics are analyzed by numerical studies. We
show that the magnitude of the largest eigenvector at the initial states are
key determinant for the resulting dynamics.
| cond-mat.dis-nn | the nature of dynamics of opinion formation modeled as a decisionbymajority process in complex networks is investigated using eigenmode analysis hamiltonian of the system is defined and estimated by eigenvectors of the adjacency matrix constructed from several network models the eigenmodes of initial and final state of the dynamics are analyzed by numerical studies we show that the magnitude of the largest eigenvector at the initial states are key determinant for the resulting dynamics | [['the', 'nature', 'of', 'dynamics', 'of', 'opinion', 'formation', 'modeled', 'as', 'a', 'decisionbymajority', 'process', 'in', 'complex', 'networks', 'is', 'investigated', 'using', 'eigenmode', 'analysis', 'hamiltonian', 'of', 'the', 'system', 'is', 'defined', 'and', 'estimated', 'by', 'eigenvectors', 'of', 'the', 'adjacency', 'matrix', 'constructed', 'from', 'several', 'network', 'models', 'the', 'eigenmodes', 'of', 'initial', 'and', 'final', 'state', 'of', 'the', 'dynamics', 'are', 'analyzed', 'by', 'numerical', 'studies', 'we', 'show', 'that', 'the', 'magnitude', 'of', 'the', 'largest', 'eigenvector', 'at', 'the', 'initial', 'states', 'are', 'key', 'determinant', 'for', 'the', 'resulting', 'dynamics']] | [-0.1499615387149053, 0.08642255657748, -0.046734220699139246, 0.05498808217390894, 0.047914698388274404, -0.047068676037382184, -0.0212265459425135, 0.35354954060422233, -0.27256470827436813, -0.2822670036231563, 0.14431720067370582, -0.2699135239299846, -0.18825429626931883, 0.1341442719408094, 0.06896184967856293, 0.0795704599540467, 0.13488292455520123, 0.0616479693395277, -0.045835676842228806, -0.18269299072762057, 0.38770053428533957, 0.07066790087225094, 0.2697182225242053, -0.005929004193653595, 0.09891228029529935, -0.012826518937052316, -0.02703503924996069, -0.0006096812797557206, -0.10419737686427416, 0.10119668893079108, 0.19768440945310978, 0.14027546899878, 0.26462726858253144, -0.4196136704556746, -0.21408669699034463, 0.06538997497409582, 0.15955352067009687, 0.09871630222306982, 0.024006392845041948, -0.3188834243696438, 0.09980188715845754, -0.13883097261853822, -0.1518807888592351, -0.07244568588913813, 0.01775511900243694, 0.03097510751183719, -0.2663515712045235, 0.10713132404186444, 0.03041488381600237, 0.041562079155358346, -0.06355773689454958, -0.14994748198739827, -0.10790938299072728, 0.15678400546312332, 0.01254168083717447, -0.05000296773465529, 0.14546141526598025, -0.13321889190590136, -0.13180607871139702, 0.3630336796329038, -0.051144013870252324, -0.19371320046994783, 0.12813708631398335, -0.12779270365119796, -0.07815921018920736, 0.12041134997717526, 0.17545059022225745, 0.10740349770281209, -0.13955399688741524, 0.0397122653108728, -0.029792395701045044, 0.1486910597663628, -0.010550047411289934, -0.003375600446143175, 0.1620217024871748, 0.19054038723458677, 0.0064110572079885495, 0.14488657331732038, -0.0334879367146641, -0.17780975502044957, -0.2430901926342551, -0.09010007722966679, -0.2825030744432995, 0.0626549590809577, -0.10770200646429783, -0.14602821859314222, 0.47718447783630186, 0.12054278402691325, 0.2280248592939381, 0.0042335232719779015, 0.2499806443612053, 0.14212354164002847, 0.02748951268675801, 0.07291415078590995, 0.2341105680759639, 0.17469481477667004, 0.0708719944128486, -0.2615701349568553, 0.11233751892354595, 0.09279271347881997] |
710.1157 | Multipartite circulant states with positive partial transposes | We construct a large class of multipartite qudit states which are positive
under the family of partial transpositions. The construction is based on
certain direct sum decomposition of the total Hilbert space displaying
characteristic circular structure and hence generalizes a class of bipartite
circulant states proposed recently by the authors. This class contains many
well known examples of multipartite quantum states from the literature and
gives rise to a huge family of completely new states.
| quant-ph | we construct a large class of multipartite qudit states which are positive under the family of partial transpositions the construction is based on certain direct sum decomposition of the total hilbert space displaying characteristic circular structure and hence generalizes a class of bipartite circulant states proposed recently by the authors this class contains many well known examples of multipartite quantum states from the literature and gives rise to a huge family of completely new states | [['we', 'construct', 'a', 'large', 'class', 'of', 'multipartite', 'qudit', 'states', 'which', 'are', 'positive', 'under', 'the', 'family', 'of', 'partial', 'transpositions', 'the', 'construction', 'is', 'based', 'on', 'certain', 'direct', 'sum', 'decomposition', 'of', 'the', 'total', 'hilbert', 'space', 'displaying', 'characteristic', 'circular', 'structure', 'and', 'hence', 'generalizes', 'a', 'class', 'of', 'bipartite', 'circulant', 'states', 'proposed', 'recently', 'by', 'the', 'authors', 'this', 'class', 'contains', 'many', 'well', 'known', 'examples', 'of', 'multipartite', 'quantum', 'states', 'from', 'the', 'literature', 'and', 'gives', 'rise', 'to', 'a', 'huge', 'family', 'of', 'completely', 'new', 'states']] | [-0.14253923788666725, 0.15263117597981665, -0.024189343353112538, 0.020562866777181624, -0.08253788839404781, -0.13493382768705486, 0.008913023443892599, 0.28247442916035653, -0.26599910591418546, -0.2807131391763687, 0.08111428578384221, -0.2591139644756913, -0.17521083577225605, 0.20220438895126183, -0.07403732853631179, 0.09163872240732114, 0.06689609454323849, 0.049291774698843556, -0.07952003045628468, -0.26656758029945193, 0.4118657989303271, -0.03275869169117262, 0.2747720843056838, 0.04063663490349427, 0.10465517990912, -0.00016330668702721596, -0.018169058797260124, 0.039808258407671625, -0.1132990151271224, 0.1407687310532977, 0.2731602581590414, 0.16041241477554044, 0.23113577333899835, -0.3268212460105618, -0.1951137519965414, 0.16821451960907627, 0.06199329578007261, 0.16975990158040077, -0.037698444011621174, -0.3250981264685591, 0.044963412874688705, -0.20504453892509142, -0.10455339066994687, -0.12883004597077766, 0.04428109360858798, -0.04419837522010008, -0.26945331439143044, 0.044011506345123054, 0.10277481682753811, 0.02926594047807157, -0.008007374905670682, -0.15131995776668192, -0.012956187566742302, 0.07745253421366215, -0.0643184288746367, -0.041538654342293736, 0.03701874838521083, -0.06088987656519748, -0.1765487522383531, 0.3214493627892807, -0.017634671019235004, -0.19669974560538928, 0.18287633026173958, -0.1187270680628717, -0.17471841907749575, 0.14748816040654977, 0.1424431089311838, 0.16847974219049017, -0.09339040543961649, 0.11009839395526796, -0.16998920270552237, 0.1056589375436306, 0.08230632633591692, 0.15121375298748413, 0.15677491627633572, 0.06685133560871084, 0.14650134433293716, 0.2548455400206149, -0.02098370797621707, -0.1580558833759278, -0.32337081745266916, -0.19007105800361992, -0.2371028362462918, 0.13059035015602907, -0.04616294336466429, -0.22461490176618099, 0.49571565906672427, -0.011159375924617052, 0.20122148253644506, 0.07001425139761219, 0.15932119768112898, 0.07004193343222141, 0.09597873431940873, 0.08580237601573269, 0.13828787391074002, 0.20904688097847005, -0.01809727552657326, -0.1597996056949099, 0.06872311500832438, 0.10371765146652857] |
710.1158 | Why the $a_1$ meson might be a difficult messenger for the restoration
of chiral symmetry | We perform a theoretical analysis of the $a_1$ resonance mass spectrum in
ultra-relativistic heavy ion collisions within a hadron/string transport
approach. Predictions for the $a_1$ yield and its mass distribution are given
for the GSI-FAIR and the critRHIC energy regime. The potential of the $a_1$
meson as a signal for chiral symmetry restoration is explored. In view of the
latest discussion, we investigate the decay channel $a_1 \to \gamma\pi$ in
detail and find a strong bias towards low $a_1$ masses. This apparent mass
shift of the $a_1$ if observed in the $\gamma\pi$ channel might render a
possible mass shift due to chiral symmetry restoration very difficult to
disentangle from the decay kinematics.
| hep-ph | we perform a theoretical analysis of the a_1 resonance mass spectrum in ultrarelativistic heavy ion collisions within a hadronstring transport approach predictions for the a_1 yield and its mass distribution are given for the gsifair and the critrhic energy regime the potential of the a_1 meson as a signal for chiral symmetry restoration is explored in view of the latest discussion we investigate the decay channel a_1 to gammapi in detail and find a strong bias towards low a_1 masses this apparent mass shift of the a_1 if observed in the gammapi channel might render a possible mass shift due to chiral symmetry restoration very difficult to disentangle from the decay kinematics | [['we', 'perform', 'a', 'theoretical', 'analysis', 'of', 'the', 'a_1', 'resonance', 'mass', 'spectrum', 'in', 'ultrarelativistic', 'heavy', 'ion', 'collisions', 'within', 'a', 'hadronstring', 'transport', 'approach', 'predictions', 'for', 'the', 'a_1', 'yield', 'and', 'its', 'mass', 'distribution', 'are', 'given', 'for', 'the', 'gsifair', 'and', 'the', 'critrhic', 'energy', 'regime', 'the', 'potential', 'of', 'the', 'a_1', 'meson', 'as', 'a', 'signal', 'for', 'chiral', 'symmetry', 'restoration', 'is', 'explored', 'in', 'view', 'of', 'the', 'latest', 'discussion', 'we', 'investigate', 'the', 'decay', 'channel', 'a_1', 'to', 'gammapi', 'in', 'detail', 'and', 'find', 'a', 'strong', 'bias', 'towards', 'low', 'a_1', 'masses', 'this', 'apparent', 'mass', 'shift', 'of', 'the', 'a_1', 'if', 'observed', 'in', 'the', 'gammapi', 'channel', 'might', 'render', 'a', 'possible', 'mass', 'shift', 'due', 'to', 'chiral', 'symmetry', 'restoration', 'very', 'difficult', 'to', 'disentangle', 'from', 'the', 'decay', 'kinematics']] | [-0.12014116114424961, 0.19133295038681444, -0.1014277473603887, 0.1145162695561544, -0.03684093647317642, -0.1568411098507879, 0.026269327387683564, 0.3707933636667492, -0.24727344452948855, -0.2492053516477615, 0.05810503553397752, -0.2875531020465198, -0.01516599123794082, 0.09697251108196839, 0.022765010661444377, 0.06539280921050876, 0.05630175421446528, 0.07277852825417712, -0.07964431382935948, -0.10376167967118458, 0.29421752868304113, 0.03274209366121271, 0.25599591861277615, 0.1470191209862294, -0.0013172010228306324, 0.0035465835732080646, 0.004768159286630852, -0.08631062389326256, -0.17062436170909587, 0.043521437573987104, 0.20967034367122897, 0.07290434122068791, 0.17543604188917392, -0.33801625831774224, -0.15016004978915098, 0.12061048640139602, 0.20978552672324013, 0.13076428300491325, -0.13102097409936758, -0.2726156367911949, 0.08106103046956631, -0.1911167491495878, -0.1605118336743331, -0.05898910645093467, 0.030033301989975815, -0.06912298182335992, -0.3447611166734819, 0.16132592354892744, -0.016834434788875485, 0.02921790396375162, -0.024112911841429368, -0.16285764997371951, -0.05364661088196544, 0.08199665751853571, 0.11971889289624586, 0.04350748019259389, 0.1575838283547578, -0.1593151439205735, -0.0741353933867235, 0.44209093123942883, -0.051149673355105625, -0.1236045755412396, 0.13313915886861682, -0.18948626623547696, -0.14510661653905838, 0.13811527907445625, 0.20050688284063325, 0.07573295233069567, -0.14755516158635015, 0.06018731610609328, -0.0032964175030052124, 0.13076162596432064, 0.052383184242104225, 0.08122248114044736, 0.23923039533667737, 0.17500697161062612, -0.029256568109901907, 0.05650404186068241, -0.10410208981232466, -0.05221050901827193, -0.3415304636834441, -0.09230215143127081, -0.12337804012690662, 0.07518243165120382, -0.03148570602200191, -0.06999583282352735, 0.38453937857831316, 0.1286693474798052, 0.3112842552783387, 0.01883096275809179, 0.2809836176635177, 0.11337531667500567, 0.08586167826040371, -0.003539349548183046, 0.30040666962730456, 0.20569482048855978, 0.1140907148385907, -0.3277798008429608, -0.02315071550709707, -0.004503668749470029] |
710.1159 | SmB$_6$: Topological insulator or semiconductor with valence-fluctuation
induced hopping transport? | We advert to the fact that presence of valence fluctuations (VFs) in
semiconductors with in-gap impurity bands unconditionally leads to dynamical
changes (fluctuations) of energies of localized impurity states. We provide
arguments that in the impurity subnetwork consisting of centers having energy
levels fluctuating around the Fermi energy there exist favorable conditions for
hops from occupied states to empty states of less energy. Consequently, we
propose original valence-fluctuation induced hopping mechanism as a new
possibility to explain unusual metallic-like conduction of SmB$_6$ and other
Kondo insulators experimentally observed at lowest temperatures. Interestingly,
the proposed mechanism infers enhanced metallic-like surface conductivity of
SmB$_6$, what resembles a characteristic property of topological insulator, and
is in agreement with experimental observations attempting to prove the
existence of topologically protected surface state in SmB$_6$.
| cond-mat.str-el | we advert to the fact that presence of valence fluctuations vfs in semiconductors with ingap impurity bands unconditionally leads to dynamical changes fluctuations of energies of localized impurity states we provide arguments that in the impurity subnetwork consisting of centers having energy levels fluctuating around the fermi energy there exist favorable conditions for hops from occupied states to empty states of less energy consequently we propose original valencefluctuation induced hopping mechanism as a new possibility to explain unusual metalliclike conduction of smb_6 and other kondo insulators experimentally observed at lowest temperatures interestingly the proposed mechanism infers enhanced metalliclike surface conductivity of smb_6 what resembles a characteristic property of topological insulator and is in agreement with experimental observations attempting to prove the existence of topologically protected surface state in smb_6 | [['we', 'advert', 'to', 'the', 'fact', 'that', 'presence', 'of', 'valence', 'fluctuations', 'vfs', 'in', 'semiconductors', 'with', 'ingap', 'impurity', 'bands', 'unconditionally', 'leads', 'to', 'dynamical', 'changes', 'fluctuations', 'of', 'energies', 'of', 'localized', 'impurity', 'states', 'we', 'provide', 'arguments', 'that', 'in', 'the', 'impurity', 'subnetwork', 'consisting', 'of', 'centers', 'having', 'energy', 'levels', 'fluctuating', 'around', 'the', 'fermi', 'energy', 'there', 'exist', 'favorable', 'conditions', 'for', 'hops', 'from', 'occupied', 'states', 'to', 'empty', 'states', 'of', 'less', 'energy', 'consequently', 'we', 'propose', 'original', 'valencefluctuation', 'induced', 'hopping', 'mechanism', 'as', 'a', 'new', 'possibility', 'to', 'explain', 'unusual', 'metalliclike', 'conduction', 'of', 'smb_6', 'and', 'other', 'kondo', 'insulators', 'experimentally', 'observed', 'at', 'lowest', 'temperatures', 'interestingly', 'the', 'proposed', 'mechanism', 'infers', 'enhanced', 'metalliclike', 'surface', 'conductivity', 'of', 'smb_6', 'what', 'resembles', 'a', 'characteristic', 'property', 'of', 'topological', 'insulator', 'and', 'is', 'in', 'agreement', 'with', 'experimental', 'observations', 'attempting', 'to', 'prove', 'the', 'existence', 'of', 'topologically', 'protected', 'surface', 'state', 'in', 'smb_6']] | [-0.19152602065506197, 0.24301021204008758, -0.06563752078335704, 0.10564647595192371, -0.01126269736081766, -0.21426197085547616, 0.14198091659287004, 0.36459994740069435, -0.24670049905235059, -0.30442806832896646, -0.060944424487303854, -0.3528821803521105, -0.12340566772938699, 0.10399385979904453, -0.0171079574253901, -0.018834597756003223, 0.009276805387795434, -0.05482169842846554, -0.07817679261175063, -0.19885937796450806, 0.30980120534293876, 0.019216573017454424, 0.31006003747326, 0.12312927362761757, 0.023989859012622464, -0.0438738858856102, 0.15353374346520376, 0.012288255397728536, -0.14223331099627864, 0.07317535680103479, 0.29922959151093004, -0.1083613186154168, 0.19121205966825805, -0.4549836090282183, -0.2232721975549709, 0.03942737830514016, 0.12103188941038626, 0.1436969718404923, -0.08178538564581771, -0.2830322579184706, 0.07134315745215575, -0.1324974445395114, -0.16968909399800522, -0.0904931192035433, 0.0024232033373022726, -0.08659568901152112, -0.2087532288517601, 0.16031637900037865, 0.03110886774952668, 0.03991306098827789, -0.15006548208644788, -0.11056919447904409, -0.14951712826570107, 0.04767511151424183, 0.07661254123185379, 0.009186149073057166, 0.14621562272122549, -0.10941608168560174, -0.12478034398536551, 0.3342772062232559, -0.0573542085178413, -0.08367475285375303, 0.21362879734428586, -0.18255687320152345, -0.08998609390903929, 0.21490596687915742, 0.07306409223806547, 0.062488537895413795, -0.0660462113608996, 0.07393929064039198, -0.046773988405213685, 0.16738597142993827, 0.016796075854479342, 0.16243210535756153, 0.2720717004962381, 0.16040628285159883, 0.08893193217430286, 0.15726216851107327, -0.13153075160415367, -0.08416893348538194, -0.23388916716817043, -0.14377289251316078, -0.2640119609910302, 0.07427455044113272, 0.0037107810077109454, -0.21476705099434354, 0.4412186364201078, 0.16279172606751785, 0.18821029062924344, -0.05738395947219385, 0.19160767491950198, 0.10201673588603591, 0.04760769194185142, 0.09375183552489147, 0.21681723299674516, 0.12187868374934088, 0.06964508177939975, -0.28201634734787784, 0.08405325140049609, 0.018080718670935594] |
710.116 | Self-consistent simulation of quantum wires defined by local oxidation
of Ga[Al]As heterostructures | We calculate the electronic width of quantum wires as a function of their
lithographic width in analogy to experiments performed on nanostructures
defined by local oxidation of Ga[Al]As heterostructures. Two--dimensional
simulations of two parallel oxide lines on top of a Ga[Al]As heterostructure
defining a quantum wire are carried out in the framework of Density Functional
Theory in the Local Density Approximation and are found to be in agreement with
measurements. Quantitative assessment of the influence of various experimental
uncertainties is given. The most influential parameter turns out to be the
oxide line depth, followed by its exact shape and the effect of background
doping (in decreasing order).
| cond-mat.mes-hall | we calculate the electronic width of quantum wires as a function of their lithographic width in analogy to experiments performed on nanostructures defined by local oxidation of gaalas heterostructures twodimensional simulations of two parallel oxide lines on top of a gaalas heterostructure defining a quantum wire are carried out in the framework of density functional theory in the local density approximation and are found to be in agreement with measurements quantitative assessment of the influence of various experimental uncertainties is given the most influential parameter turns out to be the oxide line depth followed by its exact shape and the effect of background doping in decreasing order | [['we', 'calculate', 'the', 'electronic', 'width', 'of', 'quantum', 'wires', 'as', 'a', 'function', 'of', 'their', 'lithographic', 'width', 'in', 'analogy', 'to', 'experiments', 'performed', 'on', 'nanostructures', 'defined', 'by', 'local', 'oxidation', 'of', 'gaalas', 'heterostructures', 'twodimensional', 'simulations', 'of', 'two', 'parallel', 'oxide', 'lines', 'on', 'top', 'of', 'a', 'gaalas', 'heterostructure', 'defining', 'a', 'quantum', 'wire', 'are', 'carried', 'out', 'in', 'the', 'framework', 'of', 'density', 'functional', 'theory', 'in', 'the', 'local', 'density', 'approximation', 'and', 'are', 'found', 'to', 'be', 'in', 'agreement', 'with', 'measurements', 'quantitative', 'assessment', 'of', 'the', 'influence', 'of', 'various', 'experimental', 'uncertainties', 'is', 'given', 'the', 'most', 'influential', 'parameter', 'turns', 'out', 'to', 'be', 'the', 'oxide', 'line', 'depth', 'followed', 'by', 'its', 'exact', 'shape', 'and', 'the', 'effect', 'of', 'background', 'doping', 'in', 'decreasing', 'order']] | [-0.13574336047902286, 0.1095361797417575, -0.06075161040072965, 0.010997177194151157, 0.01570903920681677, -0.1259269340781965, 0.07826774871895072, 0.4118765975722921, -0.2161765848471409, -0.3165723893129937, 0.02559376924372687, -0.3041574063441046, -0.11121565179255243, 0.20210798794978133, 0.050028533696536426, 0.10264776812955545, 0.0016784776506997715, -0.04416763366887642, -0.11755598152804876, -0.22676479643228176, 0.2673264848455682, 0.08545530518455971, 0.29653685825667997, 0.09566684812742555, 0.01763302493823048, -0.02176069665414463, -0.017265764796218584, 0.08963165816929296, -0.15953912641461415, 0.10675422459074826, 0.2652193977732525, -0.024688211861545236, 0.24500706121673652, -0.4859895433394987, -0.20203903209522506, -0.01001600109075553, 0.12097210448755334, 0.09814323722515429, -0.03965556138264729, -0.2823171464587066, 0.09291232027391964, -0.12715626591555426, -0.1091194471309536, -0.04210839201870296, -0.016266804162378065, 0.014376098011559415, -0.2132356832474122, 0.05516110142806075, -0.0031265350772398653, 0.09616113403620564, -0.04339199677592787, -0.1179413492399677, -0.07417315332040574, 0.0847778150030612, 0.012987006131437755, 0.03729674882890883, 0.23004523358769088, -0.1310699122487872, -0.0932600211339054, 0.35405911391200584, -0.06254996936093737, -0.1641254761499988, 0.12703877234413663, -0.14263245154544277, -0.06152174157029557, 0.12106046861768743, 0.12482300399863552, 0.11262406076295911, -0.13154464038785232, 0.10080820180706367, 0.0018228046992079955, 0.17369097456549268, 0.07149432309485415, 0.035162924324794974, 0.22753723993653727, 0.18272523870952775, 0.03109292866592513, 0.13715313356337094, -0.10580783873517936, -0.10603700419800861, -0.26198696634061985, -0.18771340828889407, -0.18625645268986993, 0.06633512017526011, -0.07207565812506087, -0.21948400538449533, 0.4054954187666005, 0.13832711243009735, 0.21322454333688332, -0.05495586016032601, 0.2476056845876101, 0.12558814156234752, 0.05757881883340322, -0.041714183228943394, 0.24188682977648704, 0.1978878219564071, 0.046289065861465216, -0.2503709937870137, 0.10741760996039783, 0.03563020752185834] |
710.1161 | Finite Size Scaling for the O(N) universality class from Renormalization
Group Methods | The QCD phase diagram at finite temperature and density is a topic of
considerable interest. Although much progress has been made in recent years,
some open questions remain. Even at zero density, the order of the transition
for two light flavors of fermions has not yet been conclusively established.
While considerable evidence exists in favor of a second-order transition for
massless quarks and a crossover for massive quarks, some recent results with
two flavors of staggered fermions suggest a transition of first order.
Since lattice simulations are performed in finite simulation volumes, actual
phase transitions cannot be observed directly. Thus, finite-size scaling is a
very useful tool in the analysis of lattice data. By comparing the scaling
behavior of observables to the expected scaling properties, values of critical
exponents can be confirmed and the order as well as the universality class of a
transition can be established. In the comparison to lattice QCD results, the
critical exponents and the universal scaling functions have been obtained
mainly by means of lattice simulations of O(N) spin models, and results are
usually restricted to the critical temperature or the point at which the
susceptibilities peak.
We propose to use a non-perturbative Renormalization Group method for this
purpose. We have calculated the critical finite-size scaling behavior and the
universal scaling functions for the three-dimensional O(4)-model for a wide
range of temperatures and values of the symmetry breaking parameter. Our
results are suitable for a comparison to lattice QCD results for the chiral
susceptibility and the order parameter and can be used to check the consistency
of the finite-size scaling behavior with that of the O(N) universality class.
| hep-lat | the qcd phase diagram at finite temperature and density is a topic of considerable interest although much progress has been made in recent years some open questions remain even at zero density the order of the transition for two light flavors of fermions has not yet been conclusively established while considerable evidence exists in favor of a secondorder transition for massless quarks and a crossover for massive quarks some recent results with two flavors of staggered fermions suggest a transition of first order since lattice simulations are performed in finite simulation volumes actual phase transitions cannot be observed directly thus finitesize scaling is a very useful tool in the analysis of lattice data by comparing the scaling behavior of observables to the expected scaling properties values of critical exponents can be confirmed and the order as well as the universality class of a transition can be established in the comparison to lattice qcd results the critical exponents and the universal scaling functions have been obtained mainly by means of lattice simulations of on spin models and results are usually restricted to the critical temperature or the point at which the susceptibilities peak we propose to use a nonperturbative renormalization group method for this purpose we have calculated the critical finitesize scaling behavior and the universal scaling functions for the threedimensional o4model for a wide range of temperatures and values of the symmetry breaking parameter our results are suitable for a comparison to lattice qcd results for the chiral susceptibility and the order parameter and can be used to check the consistency of the finitesize scaling behavior with that of the on universality class | [['the', 'qcd', 'phase', 'diagram', 'at', 'finite', 'temperature', 'and', 'density', 'is', 'a', 'topic', 'of', 'considerable', 'interest', 'although', 'much', 'progress', 'has', 'been', 'made', 'in', 'recent', 'years', 'some', 'open', 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710.1162 | On the Effective Action of Noncommutative Yang-Mills Theory | We compute here the Yang-Mills effective action on Moyal space by integrating
over the scalar fields in a noncommutative scalar field theory with harmonic
term, minimally coupled to an external gauge potential. We also explain the
special regularisation scheme chosen here and give some links to the Schwinger
parametric representation. Finally, we discuss the results obtained: a
noncommutative possibly renormalisable Yang-Mills theory.
| hep-th math-ph math.MP | we compute here the yangmills effective action on moyal space by integrating over the scalar fields in a noncommutative scalar field theory with harmonic term minimally coupled to an external gauge potential we also explain the special regularisation scheme chosen here and give some links to the schwinger parametric representation finally we discuss the results obtained a noncommutative possibly renormalisable yangmills theory | [['we', 'compute', 'here', 'the', 'yangmills', 'effective', 'action', 'on', 'moyal', 'space', 'by', 'integrating', 'over', 'the', 'scalar', 'fields', 'in', 'a', 'noncommutative', 'scalar', 'field', 'theory', 'with', 'harmonic', 'term', 'minimally', 'coupled', 'to', 'an', 'external', 'gauge', 'potential', 'we', 'also', 'explain', 'the', 'special', 'regularisation', 'scheme', 'chosen', 'here', 'and', 'give', 'some', 'links', 'to', 'the', 'schwinger', 'parametric', 'representation', 'finally', 'we', 'discuss', 'the', 'results', 'obtained', 'a', 'noncommutative', 'possibly', 'renormalisable', 'yangmills', 'theory']] | [-0.14649373199790716, 0.18958416456688051, -0.08110604191859884, 0.10944613108351346, -0.12851988674411852, -0.1456709922772021, -0.010104055039494509, 0.36043662573361107, -0.21130520339694717, -0.22477282400453283, 0.052339291836570705, -0.21793032068413712, -0.25155071448534727, 0.1442109578769774, -0.07631464804627842, -0.011423251020812219, -0.0184896502253269, 0.1075148040488843, -0.10717607749956509, -0.32127400501931624, 0.39180604406001585, 0.02635086154294831, 0.19551216094424168, 0.05238261790345273, 0.16377955765253113, 0.061709608709920316, -0.057902737730933775, 0.005595787495446031, -0.1527401497287135, 0.12747144676189148, 0.1725077058579172, 0.027607525300775326, 0.19900513124922592, -0.4211596415167855, -0.2602507957903248, 0.09753688478902463, 0.1156096518971026, 0.14332492735927865, -0.05019498683489679, -0.3031296815362669, 0.0056878982577472925, -0.22301533525328962, -0.16705445754679762, -0.16364152079087593, -0.0532807542983773, -0.07287724801309166, -0.28914901585648617, -0.0074551715130632325, -0.032841563264223474, 0.0626917488782877, -0.09710616298440483, -0.03203445708664555, 0.0027432963327174227, 0.014367928615801277, 0.09634879859344612, 0.11740362093663745, 0.1279265767474088, -0.1888268808083188, -0.14830397953835106, 0.3457234611334805, -0.17211456776074616, -0.3031756455499318, 0.11537019737185009, -0.10774812483859639, -0.14464088586429436, 0.04323465961609937, 0.1381421207991098, 0.14593810071387597, -0.14104138619657006, 0.22327584424713295, -0.03591675109290067, 0.10152160639183656, 0.0956987458912115, 0.03504072037814636, 0.18865286150286276, 0.041053513786004435, 0.03345963335596025, 0.15297661568113272, 0.006780573050491512, -0.19100354041063017, -0.4329236612444924, -0.1355231552264623, -0.11119040602728003, 0.10830802882781192, -0.1593389926671197, -0.18288707155584089, 0.38804472333791756, 0.16396873049257743, 0.11509264886920009, 0.04379649683851899, 0.24116118736715325, 0.1813430907955814, 0.06536010280251503, 0.011504170672607518, 0.22631080133226444, 0.2586352657338965, 0.06280074136203996, -0.2231060032612614, -0.21436884983127275, 0.17215543130653038] |
710.1163 | Bimonads and Hopf monads on categories | The purpose of this paper is to develop a theory of bimonads and Hopf monads
on arbitrary categories thus providing the possibility to transfer the
essentials of the theory of Hopf algebras in vector spaces to more general
settings. There are several extensions of this theory to {\em monoidal}
categories which in a certain sense follow the classical trace. Here we do not
pose any conditions on our base category but we do refer to the monoidal
structure of the category of endofunctors on any category $\A$ and by this we
retain some of the combinatorial complexity which makes the theory so
interesting. As a basic tool we use distributive laws between monads and
comonads (entwinings) on $\A$: we define a {\em bimonad} on $\A$ as an
endofunctor $B$ which is a monad and a comonad with an entwining $\lambda:BB\to
BB$ satisfying certain conditions. This $\lambda$ is also employed to define
the category $\A^B_B$ of (mixed) $B$-bimodules. In the classical situation, an
entwining $\lambda$ is derived from the twist map for vector spaces. Here this
need not be the case but there may exist special distributive laws $\tau:BB\to
BB$ satisfying the Yang-Baxter equation ({\em local prebraidings}) which induce
an entwining $\lambda$ and lead to an extension of the theory of {\em braided
Hopf algebras}. An antipode is defined as a natural transformation $S:B\to B$
with special properties and for categories $\A$ with limits or colimits and
bimonads $B$ preserving them, the existence of an antipode is equivalent to $B$
inducing an equivalence between $\A$ and the category $\A^B_B$ of
$B$-bimodules. This is a general form of the {\em Fundamental Theorem} of Hopf
algebras.
| math.QA math.CT | the purpose of this paper is to develop a theory of bimonads and hopf monads on arbitrary categories thus providing the possibility to transfer the essentials of the theory of hopf algebras in vector spaces to more general settings there are several extensions of this theory to em monoidal categories which in a certain sense follow the classical trace here we do not pose any conditions on our base category but we do refer to the monoidal structure of the category of endofunctors on any category a and by this we retain some of the combinatorial complexity which makes the theory so interesting as a basic tool we use distributive laws between monads and comonads entwinings on a we define a em bimonad on a as an endofunctor b which is a monad and a comonad with an entwining lambdabbto bb satisfying certain conditions this lambda is also employed to define the category ab_b of mixed bbimodules in the classical situation an entwining lambda is derived from the twist map for vector spaces here this need not be the case but there may exist special distributive laws taubbto bb satisfying the yangbaxter equation em local prebraidings which induce an entwining lambda and lead to an extension of the theory of em braided hopf algebras an antipode is defined as a natural transformation sbto b with special properties and for categories a with limits or colimits and bimonads b preserving them the existence of an antipode is equivalent to b inducing an equivalence between a and the category ab_b of bbimodules this is a general form of the em fundamental theorem of hopf algebras | [['the', 'purpose', 'of', 'this', 'paper', 'is', 'to', 'develop', 'a', 'theory', 'of', 'bimonads', 'and', 'hopf', 'monads', 'on', 'arbitrary', 'categories', 'thus', 'providing', 'the', 'possibility', 'to', 'transfer', 'the', 'essentials', 'of', 'the', 'theory', 'of', 'hopf', 'algebras', 'in', 'vector', 'spaces', 'to', 'more', 'general', 'settings', 'there', 'are', 'several', 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710.1164 | Recent progress on color confinement | The status is reviewed of the dual superconductivity of QCD vacuum as a
mechanism of color confinement.
| hep-lat | the status is reviewed of the dual superconductivity of qcd vacuum as a mechanism of color confinement | [['the', 'status', 'is', 'reviewed', 'of', 'the', 'dual', 'superconductivity', 'of', 'qcd', 'vacuum', 'as', 'a', 'mechanism', 'of', 'color', 'confinement']] | [-0.13362732025630333, 0.2786896401906715, -0.11358563645797617, 0.09398658883840065, -0.07268959974103115, -0.09545264236957711, 0.06158969682805678, 0.34719320079859567, -0.18114662937381687, -0.17274185116676724, 0.0815636949504123, -0.22653273942277713, -0.07493026970940478, 0.01736282053239205, -0.06281947569154642, 0.04331916888408801, -0.0735426569247947, 0.06784257731016945, -0.10048820330377888, -0.23540594450691166, 0.3407330393572064, 0.05149663447895471, 0.3688867196221562, 0.22196460263255766, 0.07860271906589761, 0.011575206073329729, -0.011601360569543698, 0.00969398525707862, -0.07055570442667779, 0.051439187379882616, 0.18920787722420165, 0.07296294236884397, 0.17379772378241315, -0.36792550466078167, -0.2020170758752262, 0.015316055320641574, 0.08589439709013437, 0.1485478045309291, -0.14840261928518028, -0.2287527443293263, 0.10975597897434936, -0.13544691134901607, -0.18536598596941023, -0.009802794248303947, -0.015230618718573275, -0.05989309104488177, -0.2718370188685024, 0.02946203645757016, 0.0038925365490071915, 0.03125302625053069, -0.07605040522620958, -0.17551027019234264, -0.06666172536856987, 0.031008154783836183, 0.0950038252699682, 0.15924751117606373, 0.1697086953174542, -0.33279280572691383, -0.2359213483903338, 0.48304525324526953, -0.009289666845956269, -0.051278548205600065, 0.10687436448300586, -0.08492289275369223, -0.02195898531114354, 0.07226872663287555, 0.10098803322762251, 0.13168296700014787, -0.17767486047437964, 0.11391133004251648, -0.041042277041603535, 0.08269575807978125, -0.005965333815444918, 0.2008813409244313, 0.3296477268723881, 0.3031340779407936, -0.04163927935502108, 0.1385955690022777, -0.023497131817481098, -0.09571189608644037, -0.4787874598713482, -0.14627173093750195, -0.19110228910165675, 0.048164785949184614, -0.07330773935160216, -0.19747848436236382, 0.4065033806597485, 0.13946099447853424, 0.1808226486284505, -0.12279575523536872, 0.267291239955846, 0.03492686212035444, 0.06883194209898219, -0.05820542927283574, 0.309614527532283, 0.22664478421211243, 0.15648922729579842, -0.3963753504623823, -0.027630278484567124, 0.18474094016367898] |
710.1165 | Unbiased estimates of galaxy scaling relations from photometric redshift
surveys | Many physical properties of galaxies correlate with one another, and these
correlations are often used to constrain galaxy formation models. Such
correlations include the color-magnitude relation, the luminosity-size
relation, the Fundamental Plane, etc. However, the transformation from
observable (e.g. angular size, apparent brightness) to physical quantity
(physical size, luminosity), is often distance-dependent. Noise in the distance
estimate will lead to biased estimates of these correlations, thus compromising
the ability of photometric redshift surveys to constrain galaxy formation
models. We describe two methods which can remove this bias. One is a
generalization of the V_max method, and the other is a maximum likelihood
approach. We illustrate their effectiveness by studying the size-luminosity
relation in a mock catalog, although both methods can be applied to other
scaling relations as well. We show that if one simply uses photometric
redshifts one obtains a biased relation; our methods correct for this bias and
recover the true relation.
| astro-ph | many physical properties of galaxies correlate with one another and these correlations are often used to constrain galaxy formation models such correlations include the colormagnitude relation the luminositysize relation the fundamental plane etc however the transformation from observable eg angular size apparent brightness to physical quantity physical size luminosity is often distancedependent noise in the distance estimate will lead to biased estimates of these correlations thus compromising the ability of photometric redshift surveys to constrain galaxy formation models we describe two methods which can remove this bias one is a generalization of the v_max method and the other is a maximum likelihood approach we illustrate their effectiveness by studying the sizeluminosity relation in a mock catalog although both methods can be applied to other scaling relations as well we show that if one simply uses photometric redshifts one obtains a biased relation our methods correct for this bias and recover the true relation | [['many', 'physical', 'properties', 'of', 'galaxies', 'correlate', 'with', 'one', 'another', 'and', 'these', 'correlations', 'are', 'often', 'used', 'to', 'constrain', 'galaxy', 'formation', 'models', 'such', 'correlations', 'include', 'the', 'colormagnitude', 'relation', 'the', 'luminositysize', 'relation', 'the', 'fundamental', 'plane', 'etc', 'however', 'the', 'transformation', 'from', 'observable', 'eg', 'angular', 'size', 'apparent', 'brightness', 'to', 'physical', 'quantity', 'physical', 'size', 'luminosity', 'is', 'often', 'distancedependent', 'noise', 'in', 'the', 'distance', 'estimate', 'will', 'lead', 'to', 'biased', 'estimates', 'of', 'these', 'correlations', 'thus', 'compromising', 'the', 'ability', 'of', 'photometric', 'redshift', 'surveys', 'to', 'constrain', 'galaxy', 'formation', 'models', 'we', 'describe', 'two', 'methods', 'which', 'can', 'remove', 'this', 'bias', 'one', 'is', 'a', 'generalization', 'of', 'the', 'v_max', 'method', 'and', 'the', 'other', 'is', 'a', 'maximum', 'likelihood', 'approach', 'we', 'illustrate', 'their', 'effectiveness', 'by', 'studying', 'the', 'sizeluminosity', 'relation', 'in', 'a', 'mock', 'catalog', 'although', 'both', 'methods', 'can', 'be', 'applied', 'to', 'other', 'scaling', 'relations', 'as', 'well', 'we', 'show', 'that', 'if', 'one', 'simply', 'uses', 'photometric', 'redshifts', 'one', 'obtains', 'a', 'biased', 'relation', 'our', 'methods', 'correct', 'for', 'this', 'bias', 'and', 'recover', 'the', 'true', 'relation']] | [-0.03966205527859868, 0.055257119268811994, -0.13529348300976884, 0.17850190452284795, -0.15202196167623686, -0.11309464630713455, 0.035398041022929295, 0.4125010097776753, -0.24942401882407128, -0.3621142411884529, 0.06695782513132477, -0.29795179167896313, -0.10541913607743648, 0.23101587921648828, -0.06919138435749154, 0.03522832001699439, 0.03703340091225174, -0.04446343526098074, -0.09323385303139647, -0.27399763286576356, 0.30120795144656903, 0.035014444755183324, 0.2724404215410936, -0.01434455252879488, 0.0721983304886403, -0.04667979809364267, -0.1040195781019291, 0.04263512656896138, -0.1543060556327368, 0.06766828087849384, 0.23220775982661188, 0.1514025287081798, 0.23572271145588042, -0.31114250344218186, -0.20508258689131764, 0.1104782300900814, 0.19120436629957255, 0.10726336145307869, -0.010834842433337292, -0.24202290448524497, 0.030290709514386976, -0.17087745037404636, -0.16398524300931813, -0.03273702343451042, -0.007781074714110373, 0.06973763608474139, -0.22776153056541446, 0.16396463304929557, 0.04356421384841715, 0.033095053720209607, -0.03696787829687393, -0.07680734283187324, -0.05383976102423142, 0.15622095939751982, 0.007893015333798294, 0.05072626588391323, 0.1514849535347833, -0.14877460978231302, -0.05772460779643867, 0.3936241758755999, -0.011417692487608959, -0.1602657536300374, 0.22265101498711148, -0.15913617227141277, -0.16671019314036528, 0.01726955923501378, 0.17142368023262095, 0.04629158993857286, -0.18760106659013462, 0.003061203077949851, 0.019069282450634086, 0.20694749837656037, 0.02880139030087009, 0.06669564036294069, 0.2757460081864611, 0.09213479688494569, 0.05134470743436086, 0.09307002771670132, -0.15739824837743263, -0.024078819257042864, -0.2486642931581907, -0.09717903095084468, -0.18310401649815425, 0.05060624514456863, -0.1574436178537629, -0.13593895919012283, 0.3646464015241542, 0.23856325528821817, 0.2529940367554576, 0.10385586644805894, 0.32250296851023547, 0.10539421637913858, 0.12189357963792395, 0.04148861298982809, 0.28172295741749065, 0.15112772733855726, 0.014834484201095073, -0.22350398136616312, 0.13112897817288932, 0.031210816495753583] |
710.1166 | Track Based Alignment of the ATLAS Silicon Detectors with the Robust
Alignment Algorithm | The Robust Alignment algorithm for the ATLAS silicon detectors is presented.
It is an iterative method based on centering residual and overlap residual
distributions. Tests on simulated and real data are discussed.
| physics.ins-det | the robust alignment algorithm for the atlas silicon detectors is presented it is an iterative method based on centering residual and overlap residual distributions tests on simulated and real data are discussed | [['the', 'robust', 'alignment', 'algorithm', 'for', 'the', 'atlas', 'silicon', 'detectors', 'is', 'presented', 'it', 'is', 'an', 'iterative', 'method', 'based', 'on', 'centering', 'residual', 'and', 'overlap', 'residual', 'distributions', 'tests', 'on', 'simulated', 'and', 'real', 'data', 'are', 'discussed']] | [-0.0523742282675812, 0.025828929054569016, -0.12009093107189983, 0.09191917573480168, 0.00860497506801039, -0.15853548480663449, -0.04093375359661877, 0.5084397702012211, -0.20155875658383593, -0.31847703544190153, 0.1501411244389601, -0.3242580845981138, -0.15923920911882306, 0.23528609867207706, -0.0604439465678297, 0.14036586225847714, 0.1419300753477728, -0.04570676316507161, -0.08995463760220446, -0.28998414042871445, 0.2406426427187398, 0.14460838213562965, 0.40980219352059066, -0.0020704202324850485, 0.15714319549806532, 0.005729735050408635, -0.13324116478906944, -0.008017440617550164, -0.039147079281974584, 0.09708037797827274, 0.16437437156855594, 0.17687340252450667, 0.18945351654838305, -0.3836908353259787, -0.10175324116426054, 0.09570119675481692, 0.08171511690306943, 0.07186115835793316, -0.14225050053937593, -0.3389137869235128, 0.10854250134434551, -0.08866745821433142, -0.06302128807874396, -0.0980829407053534, -0.030750971636734903, 0.02976697316626087, -0.30456580535974354, 0.07208248602546519, -0.0059735892282333225, 0.06021987969870679, -0.031065249408129603, -0.1903258595848456, 0.013730549660976976, 0.04676871902483981, -0.015572295058518648, -0.006966240209294483, 0.18442857700574677, -0.031146596593316644, -0.0948431662254734, 0.2917104820953682, 0.012688758162767044, -0.2537388996570371, 0.18612644717359217, -0.025959774386137724, -0.11120070957986172, 0.12896585022099316, 0.20546565210679546, 0.11958702179254033, -0.1666232318384573, 0.04736999845408718, 0.01648270193254575, 0.1700985567877069, -0.003053601729334332, -0.04962805297691375, 0.13414996696519665, 0.27281116461381316, 0.08175031922291964, 0.09660031027669902, -0.22898458279087208, -0.07814884441904724, -0.34597459563519806, -0.08951373119634809, -0.27614562174130697, -0.11455915501574054, -0.08243803090499568, -0.1683621503179893, 0.3490358492999803, 0.16214725308964262, 0.19763656842405908, 0.031774085386132356, 0.39658161491388455, 0.08983969961991534, 0.11159176198998466, 0.011339339660480618, 0.2545563754392788, 0.11040547219454311, 0.028023303748341277, -0.22421942677465267, 0.07039761321448168, 0.03953156520583434] |
710.1167 | Planetary Stability Zones in Hierarchical Triple Star Systems | A symplectic integrator algorithm suitable for hierarchical triple systems is
formulated and tested. The positions of the stars are followed in hierarchical
Jacobi coordinates, whilst the planets are referenced purely to their primary.
The algorithm is fast, accurate and easily generalised to incorporate
collisions. There are five distinct cases -- circumtriple orbits, circumbinary
orbits and circumstellar orbits around each of the stars in the hierarchical
triple -- which require a different formulation of the symplectic integration
algorithm. As an application, a survey of the stability zones for planets in
hierarchical triples is presented, with the case of a single planet orbiting
the inner binary considered in detail. Fits to the inner and outer edges of the
stability zone are computed. Considering the hierarchical triple as two
decoupled binary systems, the earlier work of Holman & Wiegert on binaries is
shown to be applicable to triples, except in the cases of high eccentricities
and close or massive stars. Application to triple stars with good data in the
multiple star catalogue suggests that more than 50 per cent are unable to
support circumbinary planets, as the stable zone is almost non-existent.
| astro-ph | a symplectic integrator algorithm suitable for hierarchical triple systems is formulated and tested the positions of the stars are followed in hierarchical jacobi coordinates whilst the planets are referenced purely to their primary the algorithm is fast accurate and easily generalised to incorporate collisions there are five distinct cases circumtriple orbits circumbinary orbits and circumstellar orbits around each of the stars in the hierarchical triple which require a different formulation of the symplectic integration algorithm as an application a survey of the stability zones for planets in hierarchical triples is presented with the case of a single planet orbiting the inner binary considered in detail fits to the inner and outer edges of the stability zone are computed considering the hierarchical triple as two decoupled binary systems the earlier work of holman wiegert on binaries is shown to be applicable to triples except in the cases of high eccentricities and close or massive stars application to triple stars with good data in the multiple star catalogue suggests that more than 50 per cent are unable to support circumbinary planets as the stable zone is almost nonexistent | [['a', 'symplectic', 'integrator', 'algorithm', 'suitable', 'for', 'hierarchical', 'triple', 'systems', 'is', 'formulated', 'and', 'tested', 'the', 'positions', 'of', 'the', 'stars', 'are', 'followed', 'in', 'hierarchical', 'jacobi', 'coordinates', 'whilst', 'the', 'planets', 'are', 'referenced', 'purely', 'to', 'their', 'primary', 'the', 'algorithm', 'is', 'fast', 'accurate', 'and', 'easily', 'generalised', 'to', 'incorporate', 'collisions', 'there', 'are', 'five', 'distinct', 'cases', 'circumtriple', 'orbits', 'circumbinary', 'orbits', 'and', 'circumstellar', 'orbits', 'around', 'each', 'of', 'the', 'stars', 'in', 'the', 'hierarchical', 'triple', 'which', 'require', 'a', 'different', 'formulation', 'of', 'the', 'symplectic', 'integration', 'algorithm', 'as', 'an', 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710.1168 | Density functional theory of inhomogeneous liquids. I. The liquid-vapor
interface in Lennard-Jones fluids | A simple model is proposed for the direct correlation function (DCF) for
simple fluids consisting of a hard-core contribution, a simple parametrized
core correction, and a mean-field tail. The model requires as input only the
free energy of the homogeneous fluid, obtained, e.g., from thermodynamic
perturbation theory. Comparison to the DCF obtained from simulation of a
Lennard-Jones fluid shows this to be a surprisingly good approximation for a
wide range of densities. The model is used to construct a density functional
theory for inhomogeneous fluids which is applied to the problem of calculating
the surface tension of the liquid-vapor interface. The numerical values found
are in good agreement with simulation.
| cond-mat.stat-mech | a simple model is proposed for the direct correlation function dcf for simple fluids consisting of a hardcore contribution a simple parametrized core correction and a meanfield tail the model requires as input only the free energy of the homogeneous fluid obtained eg from thermodynamic perturbation theory comparison to the dcf obtained from simulation of a lennardjones fluid shows this to be a surprisingly good approximation for a wide range of densities the model is used to construct a density functional theory for inhomogeneous fluids which is applied to the problem of calculating the surface tension of the liquidvapor interface the numerical values found are in good agreement with simulation | [['a', 'simple', 'model', 'is', 'proposed', 'for', 'the', 'direct', 'correlation', 'function', 'dcf', 'for', 'simple', 'fluids', 'consisting', 'of', 'a', 'hardcore', 'contribution', 'a', 'simple', 'parametrized', 'core', 'correction', 'and', 'a', 'meanfield', 'tail', 'the', 'model', 'requires', 'as', 'input', 'only', 'the', 'free', 'energy', 'of', 'the', 'homogeneous', 'fluid', 'obtained', 'eg', 'from', 'thermodynamic', 'perturbation', 'theory', 'comparison', 'to', 'the', 'dcf', 'obtained', 'from', 'simulation', 'of', 'a', 'lennardjones', 'fluid', 'shows', 'this', 'to', 'be', 'a', 'surprisingly', 'good', 'approximation', 'for', 'a', 'wide', 'range', 'of', 'densities', 'the', 'model', 'is', 'used', 'to', 'construct', 'a', 'density', 'functional', 'theory', 'for', 'inhomogeneous', 'fluids', 'which', 'is', 'applied', 'to', 'the', 'problem', 'of', 'calculating', 'the', 'surface', 'tension', 'of', 'the', 'liquidvapor', 'interface', 'the', 'numerical', 'values', 'found', 'are', 'in', 'good', 'agreement', 'with', 'simulation']] | [-0.09742619491774927, 0.055417239395054906, -0.14384482030079446, 0.07074335705361921, -0.015091795491223985, -0.14204917429861696, 0.023120068335397675, 0.32603235766291616, -0.2462617655454034, -0.31332347862083804, 0.015658581598704174, -0.2607181541367688, -0.11510427798229185, 0.1907396155451848, 0.025178457068448717, 0.07756507289926627, 0.0405670119788159, 0.013838583700866863, -0.09069436836818402, -0.1532794986428185, 0.2560219296508215, 0.06831076909703288, 0.27808319843289525, 0.06613251815380698, 0.1066459565973756, 0.009718818590574135, 0.011149128276685422, 0.11247373102232813, -0.16720634798349981, 0.10227724386019293, 0.23491030246527358, -0.0019120542247864332, 0.22382815172049134, -0.40289322346110235, -0.3063268815590577, 0.06122974589975043, 0.10051310689609223, 0.12508948468920691, -0.07330980175280605, -0.22209592098370196, 0.05795157837617973, -0.23540738633071834, -0.13497689298608087, -0.05742552431130951, 0.005757773595608093, 0.044249093007634986, -0.3302549624646252, 0.13839592197751202, -0.02926948939196088, 0.04619240692224015, -0.09148978151127019, -0.10954011015763337, -0.01348146257752722, 0.10529282305135645, 0.009731697772671893, 0.05634108711012893, 0.12096399736421352, -0.1626285538902845, -0.018542712373891844, 0.42365250055762854, -0.08575697895139456, -0.21209342040290888, 0.23385737783021548, -0.07242345147004181, -0.062239024504511194, 0.16022735402326693, 0.12723278572613542, 0.09900340720037507, -0.1534528489944271, 0.08025081749444574, -0.0645387830900621, 0.18994032119146803, 0.019531842990016396, -0.08362780427619741, 0.194443132635206, 0.1868874831410887, 0.0171557701531459, 0.15383756983580746, -0.06033490265888924, -0.17176803471520544, -0.33060135888782416, -0.12834883905439215, -0.22507514654108407, 0.010631071949716318, -0.12673485591777453, -0.23804150549694897, 0.3838404371233826, 0.11444489831020209, 0.17496420880779623, 0.09963760725751689, 0.2928203197534789, 0.13399331792183644, 0.018534085628661243, 0.04991617837328125, 0.24636252218518745, 0.1684760753128847, 0.07719579547304999, -0.18888303703967144, 0.043552584433928135, 0.0759701564675197] |
710.1169 | SU(2) Yang-Mills thermodynamics and photon physics | Based on quantitative predictions enabled by a nonperturbative approach to
Yang-Mills thermodynamics it is explained why the physics of photon {\sl
propagation} is not unlikely rooted in pure SU(2) gauge dynamics.
| hep-ph | based on quantitative predictions enabled by a nonperturbative approach to yangmills thermodynamics it is explained why the physics of photon sl propagation is not unlikely rooted in pure su2 gauge dynamics | [['based', 'on', 'quantitative', 'predictions', 'enabled', 'by', 'a', 'nonperturbative', 'approach', 'to', 'yangmills', 'thermodynamics', 'it', 'is', 'explained', 'why', 'the', 'physics', 'of', 'photon', 'sl', 'propagation', 'is', 'not', 'unlikely', 'rooted', 'in', 'pure', 'su2', 'gauge', 'dynamics']] | [-0.07539853525738563, 0.23644351863091992, -0.1781115696555184, 0.17468096227985958, -0.12561598792672157, -0.16033339595061638, 0.05591417296278861, 0.3560061824898566, -0.17616952306801273, -0.272930032964195, 0.009897513266262268, -0.2243100712376256, -0.19137240992859006, 0.13474775694551006, -0.025891240355708906, 0.03951238930946396, 0.034631677873192296, 0.011373140879215734, -0.006789288573688076, -0.2144513608316981, 0.25693495328267735, 0.06894092712618952, 0.3341826232330453, 0.12251410274315745, 0.10903511953450018, 0.02920031824314426, -0.037197971025541905, 0.023403596358313676, -0.0709342987787339, 0.08458973288220624, 0.23680602291959427, 0.08053116090295295, 0.15211463935913577, -0.46147217337162266, -0.25771648139362374, 0.011678627812333645, 0.14288295938205275, 0.13586223648200113, -0.03790740748762243, -0.2896764382359482, -0.027294009653550964, -0.14691245832270192, -0.1442599589222922, -0.10830811628951661, -0.03935206230849989, -0.16291940765034768, -0.20726098944883672, 0.10418403681908403, 0.002872461408016182, 0.03315230008334883, 0.03260615864588368, -0.02991381718686992, -0.04855687273365836, 0.015310180854172475, 0.06046079872776904, 0.08733838188251661, 0.1209480982994841, -0.16836270592325636, -0.20457963699535017, 0.4472902662331058, -0.08461897303500483, -0.20826057080299623, 0.19662843104602107, -0.17430285212955618, -0.1858047192555762, 0.12910118879329774, 0.07035711548110891, 0.12904511416150677, -0.1730252422782923, 0.1491723809571516, -0.014299492171454814, 0.20830659691484704, -0.0058410852967250735, -0.006730976634688916, 0.2730852384721079, 0.18901519381230877, -0.045024722889666594, 0.05895386650527437, 0.03859088514300604, -0.22521210593291588, -0.35238977653845666, -0.0751189922598461, -0.18061576461449505, 0.16280260980326397, -0.04228774770613639, -0.15002136100684443, 0.3269164547804863, 0.18190862791192147, 0.10560404773681395, -0.030088432193283113, 0.2410078277030299, 0.09658950678403339, 0.038676033356046725, 0.032726269005046736, 0.30954949353491107, 0.2550259695854038, 0.07203761766093873, -0.2688710307139122, 0.0062766540044498055, 0.1667587570095014] |
710.117 | Numerical study of metastable states in the T=0 RFIM | We study numerically the number of single-spin-flip stable states in the T=0
Random Field Ising Model (RFIM) on random regular graphs of connectivity $z=2$
and $z=4$ and on the cubic lattice. The annealed and quenched complexities
(i.e. the entropy densities) of the metastable states with given magnetization
are calculated as a function of the external magnetic field. The results show
that the appearance of a (disorder-induced) out-of-equilibrium phase transition
in the magnetization hysteresis loop at low disorder can be ascribed to a
change in the distribution of the metastable states in the field-magnetization
plane.
| cond-mat.dis-nn cond-mat.stat-mech | we study numerically the number of singlespinflip stable states in the t0 random field ising model rfim on random regular graphs of connectivity z2 and z4 and on the cubic lattice the annealed and quenched complexities ie the entropy densities of the metastable states with given magnetization are calculated as a function of the external magnetic field the results show that the appearance of a disorderinduced outofequilibrium phase transition in the magnetization hysteresis loop at low disorder can be ascribed to a change in the distribution of the metastable states in the fieldmagnetization plane | [['we', 'study', 'numerically', 'the', 'number', 'of', 'singlespinflip', 'stable', 'states', 'in', 'the', 't0', 'random', 'field', 'ising', 'model', 'rfim', 'on', 'random', 'regular', 'graphs', 'of', 'connectivity', 'z2', 'and', 'z4', 'and', 'on', 'the', 'cubic', 'lattice', 'the', 'annealed', 'and', 'quenched', 'complexities', 'ie', 'the', 'entropy', 'densities', 'of', 'the', 'metastable', 'states', 'with', 'given', 'magnetization', 'are', 'calculated', 'as', 'a', 'function', 'of', 'the', 'external', 'magnetic', 'field', 'the', 'results', 'show', 'that', 'the', 'appearance', 'of', 'a', 'disorderinduced', 'outofequilibrium', 'phase', 'transition', 'in', 'the', 'magnetization', 'hysteresis', 'loop', 'at', 'low', 'disorder', 'can', 'be', 'ascribed', 'to', 'a', 'change', 'in', 'the', 'distribution', 'of', 'the', 'metastable', 'states', 'in', 'the', 'fieldmagnetization', 'plane']] | [-0.17864457274133222, 0.2675159553293773, -0.06919203519155513, 0.06846668451350738, 0.04409783439304521, -0.10575364681178744, 0.08365138955017988, 0.37337086171387357, -0.2230510580888454, -0.24887356339418826, 0.06616484622986234, -0.280943345516286, -0.11591536239621804, 0.10539897749983171, 0.039540219230904304, 0.04563545548119285, -0.02850621582276406, 0.05332262043226907, -0.07151445319648198, -0.2400770769355462, 0.30573356978377286, -0.03194553081560483, 0.29753643368430277, 0.05658711132375484, 0.050321411732782394, 0.005782036214789494, 0.12452585269954611, 0.0779828590729789, -0.14599553375058136, 0.01518397542407756, 0.1803624695464176, -0.03317614520037363, 0.1830658784453222, -0.4252039003879466, -0.21606115466776363, 0.10680502985772539, 0.10489389430137074, 0.15408592638955948, -0.03637967012238075, -0.29884870294877824, 0.05764199612028104, -0.08807499517508327, -0.15891457928661654, -0.06928110895480247, -0.0011033221380785108, 0.03068535508181741, -0.25322468372735574, 0.11207510586431686, 0.05680631933377144, 0.0952634394981284, -0.07458395997750909, -0.08066555954753718, -0.11141600182398836, 0.0962250801744534, 0.028425775635541675, 0.0804408922855881, 0.14674183618812325, -0.17010587154134632, -0.14341454183871044, 0.3297151206061244, -0.061362579222174085, -0.11685447246232565, 0.15905041646886062, -0.21873528248769172, -0.13307512181493988, 0.1763791879688568, 0.14542281542944305, 0.10502590877598429, -0.08483694036530846, 0.10792411149552518, 0.014521485125210057, 0.14359855089841925, 0.011377027748707445, 0.018913675748564777, 0.20919716451317072, 0.13670743880991607, 0.04122468039016933, 0.22708034590803125, -0.09923075078094894, -0.16181845182275517, -0.26892372004767046, -0.12438928529104971, -0.2565512197708929, 0.0868974075494136, -0.15192017085466936, -0.23848100126463365, 0.42711639985382716, 0.13834787526742576, 0.22486360162060628, 0.04764358304500421, 0.2047839450719271, 0.13636187797764, 0.022293393054303338, 0.07133872848638195, 0.1982131197657238, 0.19577648987785537, 0.10590501659688481, -0.2906526911092248, 0.08585439855232835, 0.04472383931328721] |
710.1171 | Improved estimation of the MSEs and the MSE matrices for shrinkage
estimators of multivariate normal means and their applications | In this article we provide some nonnegative and positive estimators of the
mean squared errors(MSEs) for shrinkage estimators of multivariate normal
means. Proposed estimators are shown to improve on the uniformly minimum
variance unbiased estimator(UMVUE) under a quadratic loss criterion. A similar
improvement is also obtained for the estimators of the MSE matrices for
shrinkage estimators. We also apply the proposed estimators of the MSE matrix
to form confidence sets centered at shrinkage estimators and show their
usefulness through numerical experiments.
| math.ST stat.TH | in this article we provide some nonnegative and positive estimators of the mean squared errorsmses for shrinkage estimators of multivariate normal means proposed estimators are shown to improve on the uniformly minimum variance unbiased estimatorumvue under a quadratic loss criterion a similar improvement is also obtained for the estimators of the mse matrices for shrinkage estimators we also apply the proposed estimators of the mse matrix to form confidence sets centered at shrinkage estimators and show their usefulness through numerical experiments | [['in', 'this', 'article', 'we', 'provide', 'some', 'nonnegative', 'and', 'positive', 'estimators', 'of', 'the', 'mean', 'squared', 'errorsmses', 'for', 'shrinkage', 'estimators', 'of', 'multivariate', 'normal', 'means', 'proposed', 'estimators', 'are', 'shown', 'to', 'improve', 'on', 'the', 'uniformly', 'minimum', 'variance', 'unbiased', 'estimatorumvue', 'under', 'a', 'quadratic', 'loss', 'criterion', 'a', 'similar', 'improvement', 'is', 'also', 'obtained', 'for', 'the', 'estimators', 'of', 'the', 'mse', 'matrices', 'for', 'shrinkage', 'estimators', 'we', 'also', 'apply', 'the', 'proposed', 'estimators', 'of', 'the', 'mse', 'matrix', 'to', 'form', 'confidence', 'sets', 'centered', 'at', 'shrinkage', 'estimators', 'and', 'show', 'their', 'usefulness', 'through', 'numerical', 'experiments']] | [-0.020805149853798336, -0.019054458641647537, -0.12302584551522343, 0.13090040607825865, -0.02984167473104081, -0.13178375617400567, 0.07041932961202073, 0.43341861868902004, -0.22172321138691298, -0.2209680615688521, 0.17557536982017558, -0.31755344353946324, -0.2165722789219286, 0.2208320758647368, -0.13836374397896514, 0.15161990906005796, 0.0827814226209693, 0.008527851248339786, -0.18474273065906727, -0.39264246024474314, 0.24778631482792052, 0.11008212635222869, 0.31902888021137144, -0.014157247381090317, 0.177517223136431, -0.003407629536865633, -0.036248927599974445, 0.03090272995914462, -0.20429085163234534, 0.14435616588290734, 0.22241042194227817, 0.14737263590073849, 0.4006263442997691, -0.2508901722870673, -0.15966446690638608, 0.16622232410561624, 0.1453684537812973, 0.0144862276678787, -0.0432371073476145, -0.2343798694849203, 0.09645691652534695, -0.14442803052878833, -0.05831450265773301, -0.1354867124582252, -0.10469228911060321, 0.05178069600340309, -0.4377354135548201, 0.156599730532469, 0.036130783873126855, 0.07357771124077749, -0.061585350003376414, -0.2735394613723023, 0.036375773333814705, 0.034434536351126775, 0.10562383841805725, -0.0985750518930793, 0.09230257962834786, -0.04560834575220471, -0.07768674359267837, 0.23729582669071947, -0.08640221666686143, -0.2839041555748333, 0.10528071722180783, -0.15900465156411445, -0.07589307288886814, 0.09747140726098154, 0.24315797801636443, 0.07995913118784186, -0.18045837868924572, 0.048335210513028824, -0.047425619969026576, 0.0642034682840156, 0.03215464152973381, 0.007510128749322288, 0.14351195712349837, 0.10383878091845332, 0.17929990050866257, 0.14546303876640299, -0.10688901951689792, -0.041291159736817774, -0.351678049026788, -0.1204190450378611, -0.2674335266074425, -0.03939585670198113, -0.21662929635074968, -0.22594590463986491, 0.40105574154530804, 0.1888373703990556, 0.17918524993112003, 0.1865736993878514, 0.258414222552335, 0.13064200347407331, 0.036496552942273545, 0.11144191080916531, 0.2429131545775564, 0.19997114527829085, -0.03594508771843548, -0.2007525853187883, 0.12664082964670054, 0.06566662222288455] |
710.1172 | Combinatorial Alexander Duality -- a Short and Elementary Proof | Let X be a simplicial complex with the ground set V. Define its Alexander
dual as a simplicial complex X* = {A \subset V: V \setminus A \notin X}. The
combinatorial Alexander duality states that the i-th reduced homology group of
X is isomorphic to the (|V|-i-3)-th reduced cohomology group of X* (over a
given commutative ring R). We give a self-contained proof.
| math.CO | let x be a simplicial complex with the ground set v define its alexander dual as a simplicial complex x a subset v v setminus a notin x the combinatorial alexander duality states that the ith reduced homology group of x is isomorphic to the vi3th reduced cohomology group of x over a given commutative ring r we give a selfcontained proof | [['let', 'x', 'be', 'a', 'simplicial', 'complex', 'with', 'the', 'ground', 'set', 'v', 'define', 'its', 'alexander', 'dual', 'as', 'a', 'simplicial', 'complex', 'x', 'a', 'subset', 'v', 'v', 'setminus', 'a', 'notin', 'x', 'the', 'combinatorial', 'alexander', 'duality', 'states', 'that', 'the', 'ith', 'reduced', 'homology', 'group', 'of', 'x', 'is', 'isomorphic', 'to', 'the', 'vi3th', 'reduced', 'cohomology', 'group', 'of', 'x', 'over', 'a', 'given', 'commutative', 'ring', 'r', 'we', 'give', 'a', 'selfcontained', 'proof']] | [-0.2764817982087614, 0.0268306967756543, -0.10811637299226932, -0.00014844001747942606, -0.12045891254712812, -0.21675297395768958, 0.030178853112166046, 0.3194245208421203, -0.43380497689129877, -0.13017687442727754, 0.04092310473979374, -0.2616546428838714, -0.10558436410959626, 0.08033522227626355, -0.18929849407773036, -0.15447691257100277, 0.05834644593176295, 0.15591479731784735, -0.12193529767193736, -0.2991030870127629, 0.3163543771647039, -0.1217967484940271, 0.12903655232999045, 0.027477535541306754, 0.15485326321337556, 0.009440995966557597, 0.023701815804863562, 0.031180360167455234, -0.20522910645520256, 0.12265512255138764, 0.3533684222302476, 0.06516252311526752, 0.19699165225219836, -0.32523320262324157, -0.08306221057065442, 0.284011284836003, 0.1010191792099294, -0.15126674997879833, 0.037481032953154844, -0.30269466197026557, 0.148998245329703, -0.20057771089257764, -0.1482555086144292, -0.05525177304984116, 0.19946256079940033, -0.004665294326231128, -0.2744234143832668, -0.08925719476747708, 0.02226642594810148, 0.12116335393082289, 0.03458336054263484, -0.12695426425179007, -0.17132833801194658, 0.02037111759857565, -0.15398460540722017, 0.23145576822953146, 0.11860211064550476, -0.042340604054023984, -0.11822860069633996, 0.4147586294556739, -0.06459969576432935, -0.23023653361702062, 0.07681210700911088, -0.1948504994363814, -0.15389532444723805, 0.1963105799637918, 0.0042831516962070935, 0.20050868233207797, 0.04833502082734323, 0.285958361002754, -0.22063863453012508, 0.08577905036509037, 0.045606723788087486, 0.01907527322316023, 0.14010615854478273, 0.09047398310093606, 0.10319485652048645, 0.1164745989038044, 0.059465024437083576, 0.10086250602130274, -0.3965380625402341, -0.2078481021444084, -0.16527099944803803, 0.2860964184443726, -0.12932657517614912, -0.1636491259712665, 0.3731846920535213, 0.026631565474462313, 0.19166476374537852, 0.11085367021074549, 0.20186120941547953, 6.804098857024715e-05, -0.0009732968555610688, 0.04248654654394591, -0.05928073726502842, 0.28633475391438507, -0.020369879659036267, -0.09591498927472801, -0.011363192644642025, 0.29844651609414913] |
710.1173 | Baryon masses with dynamical twisted mass fermions | We present results on the mass of the nucleon and the $\Delta$ using two
dynamical degenerate twisted mass quarks. The evaluation is performed at four
quark masses corresponding to a pion mass in the range of 690-300 MeV on
lattices of size 2.1 fm and 2.7 fm. We check for cutoff effects by evaluating
these baryon masses on lattices of spatial size 2.1 fm with lattice spacings
$a(\beta=3.9)=0.0855(6)$ fm and $a(\beta=4.05)=0.0666(6)$ fm, determined from
the pion sector and find them to be within our statistical errors. Lattice
results are extrapolated to the physical limit using continuum chiral
perturbation theory.
The nucleon mass at the physical point provides a determination of the
lattice spacing. Using heavy baryon chiral perturbation theory at ${\cal
O}(p^3)$ we find $a(\beta=3.9)=0.0879(12)$ fm, with a systematic error due to
the chiral extrapolation estimated to be about the same as the statistical
error. This value of the lattice spacing is in good agreement with the value
determined from the pion sector. We check for isospin breaking in the
$\Delta$-system. We find that $\Delta^{++,-}$ and $\Delta^{+,0}$ are almost
degenerate pointing to small flavor violating effects.
| hep-lat hep-ph nucl-th | we present results on the mass of the nucleon and the delta using two dynamical degenerate twisted mass quarks the evaluation is performed at four quark masses corresponding to a pion mass in the range of 690300 mev on lattices of size 21 fm and 27 fm we check for cutoff effects by evaluating these baryon masses on lattices of spatial size 21 fm with lattice spacings abeta39008556 fm and abeta405006666 fm determined from the pion sector and find them to be within our statistical errors lattice results are extrapolated to the physical limit using continuum chiral perturbation theory the nucleon mass at the physical point provides a determination of the lattice spacing using heavy baryon chiral perturbation theory at cal op3 we find abeta390087912 fm with a systematic error due to the chiral extrapolation estimated to be about the same as the statistical error this value of the lattice spacing is in good agreement with the value determined from the pion sector we check for isospin breaking in the deltasystem we find that delta and delta0 are almost degenerate pointing to small flavor violating effects | [['we', 'present', 'results', 'on', 'the', 'mass', 'of', 'the', 'nucleon', 'and', 'the', 'delta', 'using', 'two', 'dynamical', 'degenerate', 'twisted', 'mass', 'quarks', 'the', 'evaluation', 'is', 'performed', 'at', 'four', 'quark', 'masses', 'corresponding', 'to', 'a', 'pion', 'mass', 'in', 'the', 'range', 'of', '690300', 'mev', 'on', 'lattices', 'of', 'size', '21', 'fm', 'and', '27', 'fm', 'we', 'check', 'for', 'cutoff', 'effects', 'by', 'evaluating', 'these', 'baryon', 'masses', 'on', 'lattices', 'of', 'spatial', 'size', '21', 'fm', 'with', 'lattice', 'spacings', 'abeta39008556', 'fm', 'and', 'abeta405006666', 'fm', 'determined', 'from', 'the', 'pion', 'sector', 'and', 'find', 'them', 'to', 'be', 'within', 'our', 'statistical', 'errors', 'lattice', 'results', 'are', 'extrapolated', 'to', 'the', 'physical', 'limit', 'using', 'continuum', 'chiral', 'perturbation', 'theory', 'the', 'nucleon', 'mass', 'at', 'the', 'physical', 'point', 'provides', 'a', 'determination', 'of', 'the', 'lattice', 'spacing', 'using', 'heavy', 'baryon', 'chiral', 'perturbation', 'theory', 'at', 'cal', 'op3', 'we', 'find', 'abeta390087912', 'fm', 'with', 'a', 'systematic', 'error', 'due', 'to', 'the', 'chiral', 'extrapolation', 'estimated', 'to', 'be', 'about', 'the', 'same', 'as', 'the', 'statistical', 'error', 'this', 'value', 'of', 'the', 'lattice', 'spacing', 'is', 'in', 'good', 'agreement', 'with', 'the', 'value', 'determined', 'from', 'the', 'pion', 'sector', 'we', 'check', 'for', 'isospin', 'breaking', 'in', 'the', 'deltasystem', 'we', 'find', 'that', 'delta', 'and', 'delta0', 'are', 'almost', 'degenerate', 'pointing', 'to', 'small', 'flavor', 'violating', 'effects']] | [-0.09774911589152947, 0.22649943741271272, -0.051536905576710354, 0.10230917547340761, -0.009104220961139968, -0.07162410795629783, 0.12674689604542577, 0.36657619146773446, -0.16917572471384817, -0.2871883249109877, 0.06997470527562405, -0.30913521112505715, 0.02022146042129332, 0.1053315251426014, 0.053771638409950986, 0.0693840982004166, 0.03264776276997649, 0.039882589234576486, -0.1484364397736819, -0.1952223578329802, 0.3326384420775307, -0.001950012351089454, 0.21938720327075367, 0.15123779124549622, 0.025190649311068458, -0.014217236938957985, -0.00851509933984214, -0.03409656249037893, -0.1654069663035753, 0.05995328261825297, 0.15903617724601005, -0.04203859951851153, 0.12886267910701232, -0.3265170067789258, -0.15051083225414033, 0.06871584126121968, 0.11456733238806559, 0.16005642036651516, 0.008589444360260821, -0.28621547225258914, 0.13317822960747794, -0.17118621745228685, -0.2099609367976702, -0.09926915555619277, -0.014025295897806576, -0.035511814891923586, -0.34982309688476254, 0.1342718434561003, -0.05679564341818939, 0.09675440494134858, -0.012117939405040919, -0.2395765296654305, -0.04840093831004636, 0.11635550329778957, 0.1020668623713101, 0.08625813730567652, 0.13451799700947498, -0.09363131569877553, -0.08978672918433753, 0.45684947448547236, -0.05674786216535882, -0.1586460489124075, 0.10400442977098155, -0.18271772328324123, -0.13661593358943258, 0.10672446252435323, 0.16934298177679571, 0.011535411533499188, -0.14631073917825144, 0.06238685380558708, -0.04780883004295302, 0.2508072947488732, 0.09662190250729999, 0.04739674330131083, 0.2561533848990451, 0.19681579747830855, 0.008445800804011114, 0.04082963689982604, -0.09570969219826761, -0.11158347156175136, -0.3366569074095933, -0.020012589749767558, -0.18130903422914363, 0.09663472638803196, -0.1454993176761251, -0.11864700933386173, 0.35452258960436006, 0.15823058360051567, 0.22114755673293066, 0.03382646025844164, 0.2425190230017876, 0.09940932256778559, 0.10341660845845652, 0.06935559819928361, 0.2763719124934421, 0.19119357182209348, 0.09392394728262674, -0.3015515305649407, -0.11284465129886355, 0.08988642372231889] |
710.1174 | Confinement and dual superconductivity of QCD vacuum | The mechanism of dual superconductivity for confinement is reviewed.
| hep-lat | the mechanism of dual superconductivity for confinement is reviewed | [['the', 'mechanism', 'of', 'dual', 'superconductivity', 'for', 'confinement', 'is', 'reviewed']] | [-0.18991285231378344, 0.2678840292824639, -0.038705062948995166, 0.1604747309271867, -0.10554670915007591, -0.21993658070762953, 0.045378733426332474, 0.35523347225454116, -0.26148930771483314, -0.11831142091088825, 0.035429030656814575, -0.24097060515648788, -0.14067087529434097, 0.10386867572863896, -0.042091547408037715, -0.008000938221812248, -0.12751986044976446, 0.0007560559444957309, -0.06261299302180608, -0.2544079921725724, 0.3448992096301582, 0.1158569734543562, 0.4633591270281209, 0.24783986144595677, 0.05246296814746327, 0.017683316073897812, 0.07086348523282343, -0.028811174548334546, -0.11203932224048509, 0.08137073916279608, 0.22761302772495481, -0.007073365151882172, 0.17494939722948605, -0.4018591238806645, -0.28118397874964607, -0.07456446035454671, 0.12541836313903332, 0.10897721722722054, -0.23689231731825405, -0.19941916027002865, 0.13050533520678678, -0.07351914503508145, -0.15891794963843292, -0.056752277020778924, 0.0690294599884914, -0.08591804115308656, -0.31911370820469326, 0.05509580713179377, 0.08329689068098863, 0.06792986579239368, -0.13955314167671734, -0.08619593332211177, -0.019009192784627277, -0.04744512008296119, 0.09234421397559345, 0.11386161271689667, 0.13158955932077435, -0.21458442405694061, -0.1837286963644955, 0.4397924111949073, 0.08077877925501929, -0.09305132221844462, 0.17462777801685864, -0.06546950029830138, -0.03712354807390107, 0.09786611795425415, 0.0847131120454934, 0.10265725685490502, -0.15261091757565737, 0.09938959611786737, -0.02184932016664081, 0.019336205389764573, -0.051834230311214924, 0.18725710444980198, 0.314539877904786, 0.377305183145735, -0.006053457140094704, 0.13285985382066834, -0.010173199905289544, -0.12078042659494612, -0.3913484397861693, -0.18477116194036272, -0.18407762381765577, -0.02471923300375541, -0.018824432303922042, -0.10569125041365623, 0.35515256060494316, 0.15301830569903055, 0.13006989011127087, -0.14925611681408352, 0.16505797372923958, 0.09748688774804275, 0.09255711548030376, -0.034328892154412136, 0.3418116006586287, 0.24964400753378868, 0.11066438174910015, -0.38013543566274977, 0.02901899509338869, 0.23777099615997738] |
710.1175 | An alternative hypothesis for the outburst mechanism in Supergiant Fast
X-ray Transients: the case of IGR J11215-5952 | (ABRIDGED)- The physical mechanism responsible for the short outbursts in a
recently recognized class of High Mass X-ray Binaries, the Supergiant Fast
X-ray Transients (SFXTs), is still unknown. Two main hypotheses have been
proposed to date: the sudden accretion by the compact object of small ejections
originating in a clumpy wind from the supergiant donor, or outbursts produced
at (or near) the periastron passage in wide and eccentric orbits, in order to
explain the low (1E32 erg/s) quiescent emission.Neither proposed mechanisms
seem to explain the whole phenomenology of these sources. Here we propose a new
explanation for the outburst mechanism, based on new X-ray observations of the
unique SFXT known to display periodic outbursts, IGRJ11215-5952. We performed
three Target of Opportunity observations with Swift, XMM-Newton and INTEGRAL at
the time of the fifth outburst, expected on 2007 February 9. Swift observations
of the February 2007 outburst have been reported elsewhere. Another ToO with
Swift was performed in July 2007, in order to monitor the supposed ``apastron''
passage. A second unexpected outburst was discovered on 2007 July 24, after
about 165 days from the February 2007 outburst. The new X-ray observations
allow us to propose an alternative hypothesis for the outburst mechanism in
SFXTs, linked to the possible presence of a second wind component,in the form
of an equatorial disk from the supergiant donor. We discuss the applicability
of the model to the short outburst durations of all other SFXTs, where a clear
periodicity in the outbursts has not been found yet. The new outburst from
IGRJ11215-5952 observed in July suggests that the true orbital period is
~165days, instead of 329days, as previously thought.
| astro-ph | abridged the physical mechanism responsible for the short outbursts in a recently recognized class of high mass xray binaries the supergiant fast xray transients sfxts is still unknown two main hypotheses have been proposed to date the sudden accretion by the compact object of small ejections originating in a clumpy wind from the supergiant donor or outbursts produced at or near the periastron passage in wide and eccentric orbits in order to explain the low 1e32 ergs quiescent emissionneither proposed mechanisms seem to explain the whole phenomenology of these sources here we propose a new explanation for the outburst mechanism based on new xray observations of the unique sfxt known to display periodic outbursts igrj112155952 we performed three target of opportunity observations with swift xmmnewton and integral at the time of the fifth outburst expected on 2007 february 9 swift observations of the february 2007 outburst have been reported elsewhere another too with swift was performed in july 2007 in order to monitor the supposed apastron passage a second unexpected outburst was discovered on 2007 july 24 after about 165 days from the february 2007 outburst the new xray observations allow us to propose an alternative hypothesis for the outburst mechanism in sfxts linked to the possible presence of a second wind componentin the form of an equatorial disk from the supergiant donor we discuss the applicability of the model to the short outburst durations of all other sfxts where a clear periodicity in the outbursts has not been found yet the new outburst from igrj112155952 observed in july suggests that the true orbital period is 165days instead of 329days as previously thought | [['abridged', 'the', 'physical', 'mechanism', 'responsible', 'for', 'the', 'short', 'outbursts', 'in', 'a', 'recently', 'recognized', 'class', 'of', 'high', 'mass', 'xray', 'binaries', 'the', 'supergiant', 'fast', 'xray', 'transients', 'sfxts', 'is', 'still', 'unknown', 'two', 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710.1176 | Autoresonant control of the many-electron dynamics in nonparabolic
quantum wells | The optical response of nonparabolic quantum wells is dominated by a strong
peak at the plasmon frequency. When the electrons reach the anharmonic regions,
resonant absorption becomes inefficient. This limitation is overcome by using a
chirped laser pulse in the autoresonant regime. By direct simulations using the
Wigner phase-space approach, the authors prove that, with a sequence of just a
few pulses, electrons can be efficiently detrapped from a nonparabolic well.
For an array of multiple quantum wells, they can create and control an
electronic current by suitably applying an autoresonant laser pulse and a
slowly varying dc electric field.
| cond-mat.mes-hall | the optical response of nonparabolic quantum wells is dominated by a strong peak at the plasmon frequency when the electrons reach the anharmonic regions resonant absorption becomes inefficient this limitation is overcome by using a chirped laser pulse in the autoresonant regime by direct simulations using the wigner phasespace approach the authors prove that with a sequence of just a few pulses electrons can be efficiently detrapped from a nonparabolic well for an array of multiple quantum wells they can create and control an electronic current by suitably applying an autoresonant laser pulse and a slowly varying dc electric field | [['the', 'optical', 'response', 'of', 'nonparabolic', 'quantum', 'wells', 'is', 'dominated', 'by', 'a', 'strong', 'peak', 'at', 'the', 'plasmon', 'frequency', 'when', 'the', 'electrons', 'reach', 'the', 'anharmonic', 'regions', 'resonant', 'absorption', 'becomes', 'inefficient', 'this', 'limitation', 'is', 'overcome', 'by', 'using', 'a', 'chirped', 'laser', 'pulse', 'in', 'the', 'autoresonant', 'regime', 'by', 'direct', 'simulations', 'using', 'the', 'wigner', 'phasespace', 'approach', 'the', 'authors', 'prove', 'that', 'with', 'a', 'sequence', 'of', 'just', 'a', 'few', 'pulses', 'electrons', 'can', 'be', 'efficiently', 'detrapped', 'from', 'a', 'nonparabolic', 'well', 'for', 'an', 'array', 'of', 'multiple', 'quantum', 'wells', 'they', 'can', 'create', 'and', 'control', 'an', 'electronic', 'current', 'by', 'suitably', 'applying', 'an', 'autoresonant', 'laser', 'pulse', 'and', 'a', 'slowly', 'varying', 'dc', 'electric', 'field']] | [-0.12741420852020383, 0.24033891962011694, -0.06207339562941343, 0.045397763667860996, -0.011888827591901645, -0.15827516154386104, 0.051567149522015826, 0.4423564958572388, -0.3004955336265266, -0.2808630554517731, 0.018362075382610782, -0.2616343951318413, -0.0802420134562999, 0.2671347118541598, -0.012178804916329682, 0.03666149609372951, 0.042404741868376734, -0.06468878045678139, -0.014051986153936014, -0.14623472752748057, 0.2719682110985741, 0.06664935445645824, 0.2651261056819931, 0.02859124626964331, 0.08989372355281375, 0.023791247587651013, 0.09155985346995293, -0.0022913222608622165, -0.06407226295479632, 0.05633794802706689, 0.2491844731895253, -0.04289744843670633, 0.3323126613115892, -0.46651093009859324, -0.22978718083468266, 0.02436220321804285, 0.18765737914247438, 0.18562449916265905, -0.09085785536328331, -0.31394677025265993, 0.0235604649502784, -0.15109126342344098, -0.1406531656626612, -0.0414629240706563, -0.019205532589694485, 0.09013779904227703, -0.27187432982958853, 0.054568368615582584, 0.031245730213122443, 0.027530587976798415, -0.02507512001669966, 0.013732644324190914, -0.0025295421644113956, 0.03441316498006927, -0.019691226952709258, 0.041249925099546086, 0.19862984893261454, -0.120883702209685, -0.09882524425163865, 0.3468750438618008, -0.09958168600685895, -0.12508739777840674, 0.10996849415823817, -0.1713813269045204, 0.023790048412047328, 0.20329042464494707, 0.1011482268339023, 0.12281678554136306, -0.13957808385792306, 0.07747065697214567, 0.016343680592253804, 0.21561324976850302, 0.1337460824009031, 0.044451117147691545, 0.28184511566534637, 0.13660392748890446, 0.06227438129484653, 0.16046492206281981, -0.10820687202736735, -0.015817246637307106, -0.2228530623909319, -0.09216006927657873, -0.24324657106772066, 0.07997985967434942, -0.05164440118067432, -0.15287953658029438, 0.4357860062038526, 0.08377413490787149, 0.1404588596522808, -0.013762719053775073, 0.32987202642369085, 0.24085902204737067, 0.03396329463459551, 0.04024445125367492, 0.2738269792869687, 0.1695200965180993, 0.1049752895576239, -0.27273670037975534, -0.015085584818152711, -0.02087358359247446] |
710.1177 | Stochastic Cutoff Method for Long-Range Interacting Systems | A new Monte-Carlo method for long-range interacting systems is presented.
This method consists of eliminating interactions stochastically with the
detailed balance condition satisfied. When a pairwise interaction $V_{ij}$ of a
$N$-particle system decreases with the distance as $r_{ij}^{-\alpha}$,
computational time per one Monte Carlo step is ${\cal O}(N)$ for $\alpha \ge d$
and ${\cal O}(N^{2-\alpha/d})$ for $\alpha < d$, where $d$ is the spatial
dimension. We apply the method to a two-dimensional magnetic dipolar system.
The method enables us to treat a huge system of $256^2$ spins with reasonable
computational time, and reproduces a circular order originated from long-range
dipolar interactions.
| cond-mat.dis-nn cond-mat.stat-mech | a new montecarlo method for longrange interacting systems is presented this method consists of eliminating interactions stochastically with the detailed balance condition satisfied when a pairwise interaction v_ij of a nparticle system decreases with the distance as r_ijalpha computational time per one monte carlo step is cal on for alpha ge d and cal on2alphad for alpha d where d is the spatial dimension we apply the method to a twodimensional magnetic dipolar system the method enables us to treat a huge system of 2562 spins with reasonable computational time and reproduces a circular order originated from longrange dipolar interactions | [['a', 'new', 'montecarlo', 'method', 'for', 'longrange', 'interacting', 'systems', 'is', 'presented', 'this', 'method', 'consists', 'of', 'eliminating', 'interactions', 'stochastically', 'with', 'the', 'detailed', 'balance', 'condition', 'satisfied', 'when', 'a', 'pairwise', 'interaction', 'v_ij', 'of', 'a', 'nparticle', 'system', 'decreases', 'with', 'the', 'distance', 'as', 'r_ijalpha', 'computational', 'time', 'per', 'one', 'monte', 'carlo', 'step', 'is', 'cal', 'on', 'for', 'alpha', 'ge', 'd', 'and', 'cal', 'on2alphad', 'for', 'alpha', 'd', 'where', 'd', 'is', 'the', 'spatial', 'dimension', 'we', 'apply', 'the', 'method', 'to', 'a', 'twodimensional', 'magnetic', 'dipolar', 'system', 'the', 'method', 'enables', 'us', 'to', 'treat', 'a', 'huge', 'system', 'of', '2562', 'spins', 'with', 'reasonable', 'computational', 'time', 'and', 'reproduces', 'a', 'circular', 'order', 'originated', 'from', 'longrange', 'dipolar', 'interactions']] | [-0.17310502509483033, 0.14279169639139766, -0.03769932921171527, 0.044979472016689906, -0.011173582447673937, -0.1964203506012005, 0.019236412379100468, 0.3467160202562809, -0.24804628506829643, -0.3196462047982472, -0.01725790858964878, -0.32582516073616163, -0.08757155863427077, 0.16760918935478636, 0.050940887231116345, 0.03669212973791861, 0.06995078395450055, 0.039876712479092406, -0.0635581486811391, -0.21827817155222287, 0.26421047388232016, 0.04984013692504077, 0.1833596586983538, 0.03268624711405448, 0.12217471561385225, 0.0662317616192417, 0.02541819019149048, 0.030512396768887874, -0.12967122071469672, 0.09665552631368617, 0.1455575260762925, 0.04699232256289271, 0.27738891718815073, -0.40640243129673026, -0.18962266054851087, 0.10401488310478703, 0.16191725032121845, 0.13031560607781315, 0.013074715126710332, -0.26007819428306184, 0.041476465366554985, -0.17942770056878077, -0.17908796996837764, -0.0873727137599178, 0.06008923723541125, 0.01743005651679605, -0.36582224310911965, 0.12285119904242832, 0.050351993792285825, 0.056624566731654634, -0.01842578427602697, -0.07551694101526994, -0.01171653742215248, 0.10528298691085615, -0.005429447335755509, 0.08531919036606195, 0.07228932142930312, -0.06870999332809012, -0.08879243486532659, 0.37470833677092963, -0.03920270840642089, -0.2004783418537541, 0.21694776367377303, -0.14625823243775152, -0.13310147427267047, 0.18543873676992575, 0.1750709958176947, 0.1442437629742228, -0.13584999627544841, 0.1270358891995398, 0.008991794684205693, 0.22027193417189397, -0.017341887305556525, -0.006828111737514987, 0.15402719842251203, 0.21889236261080386, 0.06323620523890537, 0.1484411550459988, -0.09773289559043313, -0.11157098234480604, -0.29187756003529736, -0.16401641081896318, -0.2260675427287516, 0.03856092742691287, -0.11607301759391299, -0.12954941106198187, 0.31853763867202545, 0.15412163635659398, 0.17006261902626116, 0.07262920478659898, 0.2714749663419118, 0.10448771411190844, 0.04571150889563741, 0.04239323073904021, 0.1675496027684968, 0.13965904478670446, 0.07382524142046507, -0.2676027078520168, 0.027956954622170842, 0.10688226040208129] |
710.1178 | The structure of Sally modules of rank one | A complete structure theorem of Sally modules of $\fkm$-primary ideals $I$ in
a Cohen-Macaulay local ring $(A, \m)$ satisfying the equality
$\e_1(I)=\e_0(I)-\ell_A(A/I)+1$ is given, where $\e_0(I)$ and $\e_1(I)$ denote
the first two Hilbert coefficients of $I$.
| math.AC math.AG | a complete structure theorem of sally modules of fkmprimary ideals i in a cohenmacaulay local ring a m satisfying the equality e_1ie_0iell_aai1 is given where e_0i and e_1i denote the first two hilbert coefficients of i | [['a', 'complete', 'structure', 'theorem', 'of', 'sally', 'modules', 'of', 'fkmprimary', 'ideals', 'i', 'in', 'a', 'cohenmacaulay', 'local', 'ring', 'a', 'm', 'satisfying', 'the', 'equality', 'e_1ie_0iell_aai1', 'is', 'given', 'where', 'e_0i', 'and', 'e_1i', 'denote', 'the', 'first', 'two', 'hilbert', 'coefficients', 'of', 'i']] | [-0.2443633214570582, 0.016371214324060607, -0.06860041929244556, -0.003536757722031325, -0.0666349628693698, -0.19963259547127082, -0.07979903841281638, 0.24399449709145463, -0.35551705808543105, -0.10742602031677961, 0.08732850549345397, -0.264452850446105, -0.058169081067556846, 0.11454010680180919, -0.09311727875405375, -0.05920668737962842, 0.02937977761030197, 0.08697641083477613, -0.08116839604233117, -0.32311016627286065, 0.40655659703428254, -0.012009239646003526, 0.16178264783914476, 0.033008248380878395, 0.15390882868429318, 0.0202112619915758, -0.033813516527195185, 0.04210969921447994, -0.22494000275893247, 0.1398059551823227, 0.2941583419246051, 0.14452774414573522, 0.2683600884766373, -0.386576278737801, -0.004294201704289983, 0.2276610535405138, 0.08396799714468858, -0.10658589723136495, 0.04770350910257548, -0.19836256236714475, 0.140032591565293, -0.19252640447195837, -0.1129218171186307, -0.0011721881489981623, 0.12060707270660821, 0.04484920784392778, -0.35634890491286675, 0.02086621117504204, 0.1770130929482334, 0.18004145829335733, -0.0728612063890871, -0.06913728121777668, -0.07473522095995791, 0.014662623747854549, -0.16258526454433142, -0.039065008243436325, 0.048077224178568405, -0.1084420193972833, -0.12061199291116174, 0.32984822517370477, -0.05830364896032466, -0.16515444186926984, 0.05097897957517382, -0.22375952970126972, -0.14155040295137203, 0.053664364441133594, -0.00241019919185954, 0.18886116990710006, -0.02701573701308328, 0.24101446963237216, -0.18560485224075177, 0.025779298342326108, 0.10235014642753146, 0.03924403975115103, 0.13288443675264716, 0.11283584382823285, 0.05873135233602678, 0.12233085828997634, 0.014405736466869712, 0.03967961069086895, -0.4082469530403614, -0.24970208984964035, -0.19960737952907734, 0.1363848118823679, -0.11173629544303848, -0.11728990371065105, 0.44750886958311586, 0.0384327555212247, 0.23166990236324422, 0.0911789982141379, 0.2249970654683078, 0.01228724280372262, 0.01555087263969814, 0.09600020686219282, 0.07382284575963721, 0.2641850292463513, -0.034132583395523185, -0.10056760826367228, -0.009511636597487856, 0.22020218507660663] |
710.1179 | Dark matter-wave solitons in the dimensionality crossover | We consider the statics and dynamics of dark matter-wave solitons in the
dimensionality crossover regime from 3D to 1D. There, using the nonpolynomial
Schr\"{o}dinger mean-field model, we find that the anomalous mode of the
Bogoliubov spectrum has an eigenfrequency which coincides with the soliton
oscillation frequency obtained by the 3D Gross-Pitaevskii model. We show that
substantial deviations (of order of 10% or more) from the characteristic
frequency $\omega_{z}/\sqrt{2}$ ($\omega_{z}$ being the longitudinal trap
frequency) are possible even in the purely 1D regime.
| cond-mat.other | we consider the statics and dynamics of dark matterwave solitons in the dimensionality crossover regime from 3d to 1d there using the nonpolynomial schrodinger meanfield model we find that the anomalous mode of the bogoliubov spectrum has an eigenfrequency which coincides with the soliton oscillation frequency obtained by the 3d grosspitaevskii model we show that substantial deviations of order of 10 or more from the characteristic frequency omega_zsqrt2 omega_z being the longitudinal trap frequency are possible even in the purely 1d regime | [['we', 'consider', 'the', 'statics', 'and', 'dynamics', 'of', 'dark', 'matterwave', 'solitons', 'in', 'the', 'dimensionality', 'crossover', 'regime', 'from', '3d', 'to', '1d', 'there', 'using', 'the', 'nonpolynomial', 'schrodinger', 'meanfield', 'model', 'we', 'find', 'that', 'the', 'anomalous', 'mode', 'of', 'the', 'bogoliubov', 'spectrum', 'has', 'an', 'eigenfrequency', 'which', 'coincides', 'with', 'the', 'soliton', 'oscillation', 'frequency', 'obtained', 'by', 'the', '3d', 'grosspitaevskii', 'model', 'we', 'show', 'that', 'substantial', 'deviations', 'of', 'order', 'of', '10', 'or', 'more', 'from', 'the', 'characteristic', 'frequency', 'omega_zsqrt2', 'omega_z', 'being', 'the', 'longitudinal', 'trap', 'frequency', 'are', 'possible', 'even', 'in', 'the', 'purely', '1d', 'regime']] | [-0.1418196635398393, 0.15338365062313114, -0.06864968852864371, 0.05275267680509039, -0.0362244370152001, -0.15696290061797624, 0.005380876856729572, 0.34711619461944077, -0.25205989880487323, -0.22259410445428926, 0.03751457934727731, -0.2836161053934951, -0.1390522925303904, 0.20332551081262437, 0.06441680639177377, 0.047985964753653534, 0.023364957123075004, 0.03033101515568517, -0.021454146152712912, -0.13667796207534402, 0.3352892298458351, 0.003977997435463799, 0.2874671434983611, -0.023154013002590266, 0.054384168352425835, -0.036413572119249976, 0.05848434388588677, -0.013780680824255135, -0.16477385608362247, 0.04157116424499287, 0.18603724899793755, -0.003655535099958932, 0.23078746709938128, -0.4450631175696114, -0.24713263155915488, 0.118766220619925, 0.20596577091154034, 0.22834153098979804, -0.027358186200733964, -0.3247277700445718, -0.016813781695946314, -0.15403521649631452, -0.18846978675459086, -0.0837457672531866, 0.017202311356402475, 0.012517620314970428, -0.24250216726041227, 0.17650043941390367, 0.07251895065591843, 0.057792453497740225, -0.09686794566036558, -0.05491280511458531, -0.04256105368359037, 0.045423273747372955, 0.03465286775831317, -0.000794607772273414, 0.08010696815211832, -0.16813351259923276, -0.09758048990948333, 0.42029081593141143, -0.14890753391147074, -0.15974461864450096, 0.19170291825588562, -0.2289450189334421, -0.002209837450703353, 0.16778714336270903, 0.1345641209375987, 0.055345490816290734, -0.0721243975330489, 0.10517664534761283, -0.04551909450602568, 0.21878512920725537, 0.0909604053904107, 0.023010809146971616, 0.20334723206627883, 0.18283183446131002, 0.04157307781968956, 0.13279342501895663, -0.14947980079500947, -0.11664378405103092, -0.26503693003115464, -0.05326881463191024, -0.2040906098486574, 0.022665718202421695, -0.0819721590254361, -0.14641506632468032, 0.4287771283171749, 0.15551127939038395, 0.17659948888108318, 0.05595190710543344, 0.2745401414548173, 0.21337957245608172, 0.043046957790207716, 0.0392375312814558, 0.29300438464377765, 0.12665638398022655, 0.12282644387012646, -0.30799058453973244, -0.10703597451203767, 0.04248528601889165] |
710.118 | Comparison of bar strengths in optical and near-infrared for the OSUBSGS
sample | We use a gravitational bar torque method to compare bar strengths (the
maximum tangential force normalized by radial force) in B and H-band images of
152 galaxies from the Ohio State University Bright Spiral Galaxy Survey. Our
main motivation is to check how much the difference in the rest-frame
wavelength could affect comparisons of bar strengths in low and high redshift
observations. Between these two bands we find an average bar strength ratio
Q_B/H= 1.25 which factor is nearly independent of the morphological type. We
show that Q_B/H > 1 is mostly due to reduced bulge dilution of radial forces in
the B-band. The bar torque method needs an estimate for the vertical scale
height of the galaxy, based on the radial scale length of the disk and the
galaxy's morphological type. Since these two might not always be possible to
determine at high redshifts in a reliable manner, we also checked that similar
results are obtained with vertical scale heights estimated from the radii
corresponding to the K-band surface brightness of 20 mag/arcsec^2. Also, we
made a simple test of the usability of the bar torque method at high redshifts
by checking the effects of image degradation (nearest neighbour sampling
without any adjustment of noise levels): we found that the estimated bar
strengths varied by +/- 10% at most as long as the total extent of the bar was
at least 10 pixels. Overall, we show that the gravitational bar torque method
should provide a proficient tool for quantifying bar strengths also at high
redshifts.
| astro-ph | we use a gravitational bar torque method to compare bar strengths the maximum tangential force normalized by radial force in b and hband images of 152 galaxies from the ohio state university bright spiral galaxy survey our main motivation is to check how much the difference in the restframe wavelength could affect comparisons of bar strengths in low and high redshift observations between these two bands we find an average bar strength ratio q_bh 125 which factor is nearly independent of the morphological type we show that q_bh 1 is mostly due to reduced bulge dilution of radial forces in the bband the bar torque method needs an estimate for the vertical scale height of the galaxy based on the radial scale length of the disk and the galaxys morphological type since these two might not always be possible to determine at high redshifts in a reliable manner we also checked that similar results are obtained with vertical scale heights estimated from the radii corresponding to the kband surface brightness of 20 magarcsec2 also we made a simple test of the usability of the bar torque method at high redshifts by checking the effects of image degradation nearest neighbour sampling without any adjustment of noise levels we found that the estimated bar strengths varied by 10 at most as long as the total extent of the bar was at least 10 pixels overall we show that the gravitational bar torque method should provide a proficient tool for quantifying bar strengths also at high redshifts | [['we', 'use', 'a', 'gravitational', 'bar', 'torque', 'method', 'to', 'compare', 'bar', 'strengths', 'the', 'maximum', 'tangential', 'force', 'normalized', 'by', 'radial', 'force', 'in', 'b', 'and', 'hband', 'images', 'of', '152', 'galaxies', 'from', 'the', 'ohio', 'state', 'university', 'bright', 'spiral', 'galaxy', 'survey', 'our', 'main', 'motivation', 'is', 'to', 'check', 'how', 'much', 'the', 'difference', 'in', 'the', 'restframe', 'wavelength', 'could', 'affect', 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710.1181 | On the evolution and fate of supermassive stars | We study the evolution and fate of solar composition supermassive stars in
the mass range 60 - 1000 Msun. Our study is relevant both for very massive
objects observed in young stellar complexes as well as supermassive stars that
may potentially form through runaway stellar collisions. We predict the
outcomes of stellar evolution employing a mass-loss prescription that is
consistent with the observed Hertzsprung-Russell Diagram location of the most
massive stars. We compute a series of stellar models with an appropriately
modified version of the Eggleton evolutionary code. We find that super-massive
stars with initial masses up to 1000 Msun end their lives as objects less
massive than ~150 Msun. These objects are expected to collapse into black holes
(with M < 70 Msun) or explode as pair-instability supernovae. We argue that if
ultraluminous X-ray sources (ULXs) contain intermediate-mass black holes, these
are unlikely to be the result of runaway stellar collisions in the cores of
young clusters.
| astro-ph | we study the evolution and fate of solar composition supermassive stars in the mass range 60 1000 msun our study is relevant both for very massive objects observed in young stellar complexes as well as supermassive stars that may potentially form through runaway stellar collisions we predict the outcomes of stellar evolution employing a massloss prescription that is consistent with the observed hertzsprungrussell diagram location of the most massive stars we compute a series of stellar models with an appropriately modified version of the eggleton evolutionary code we find that supermassive stars with initial masses up to 1000 msun end their lives as objects less massive than 150 msun these objects are expected to collapse into black holes with m 70 msun or explode as pairinstability supernovae we argue that if ultraluminous xray sources ulxs contain intermediatemass black holes these are unlikely to be the result of runaway stellar collisions in the cores of young clusters | [['we', 'study', 'the', 'evolution', 'and', 'fate', 'of', 'solar', 'composition', 'supermassive', 'stars', 'in', 'the', 'mass', 'range', '60', '1000', 'msun', 'our', 'study', 'is', 'relevant', 'both', 'for', 'very', 'massive', 'objects', 'observed', 'in', 'young', 'stellar', 'complexes', 'as', 'well', 'as', 'supermassive', 'stars', 'that', 'may', 'potentially', 'form', 'through', 'runaway', 'stellar', 'collisions', 'we', 'predict', 'the', 'outcomes', 'of', 'stellar', 'evolution', 'employing', 'a', 'massloss', 'prescription', 'that', 'is', 'consistent', 'with', 'the', 'observed', 'hertzsprungrussell', 'diagram', 'location', 'of', 'the', 'most', 'massive', 'stars', 'we', 'compute', 'a', 'series', 'of', 'stellar', 'models', 'with', 'an', 'appropriately', 'modified', 'version', 'of', 'the', 'eggleton', 'evolutionary', 'code', 'we', 'find', 'that', 'supermassive', 'stars', 'with', 'initial', 'masses', 'up', 'to', '1000', 'msun', 'end', 'their', 'lives', 'as', 'objects', 'less', 'massive', 'than', '150', 'msun', 'these', 'objects', 'are', 'expected', 'to', 'collapse', 'into', 'black', 'holes', 'with', 'm', '70', 'msun', 'or', 'explode', 'as', 'pairinstability', 'supernovae', 'we', 'argue', 'that', 'if', 'ultraluminous', 'xray', 'sources', 'ulxs', 'contain', 'intermediatemass', 'black', 'holes', 'these', 'are', 'unlikely', 'to', 'be', 'the', 'result', 'of', 'runaway', 'stellar', 'collisions', 'in', 'the', 'cores', 'of', 'young', 'clusters']] | [-0.058657348463431194, 0.1815463315542729, -0.030565923336558998, 0.19037078177251926, -0.11394384131283285, -0.02818014556601739, 0.060865594969632536, 0.40131795037991536, -0.087872579512455, -0.3968210574000692, 0.05229004806591174, -0.30828230790435696, -0.016787967293893393, 0.206713802076709, -0.060404354146764185, -0.04874338745363415, 0.14552680104941082, -0.041177438386978626, -0.0502580266374235, -0.3029370990951952, 0.3582428384106606, 0.056504953145168915, 0.05674037804158452, -0.08951931578429559, 0.03182118055067407, -0.1540615974435917, -0.008445464347739918, -0.06359912121955019, -0.1660475211118375, 0.0014400881504675804, 0.2474815268915802, 0.20218345320795494, 0.22282191272825003, -0.36155900165725213, -0.2175663792205831, 0.06761752660923566, 0.25219840402123506, 0.07338012522683503, -0.1375721304032665, -0.2191176807272057, 0.147815819328221, -0.2689801884206155, -0.19736644024483097, 0.0646928580931555, 0.04867729593789614, 0.039423541067383036, -0.22606520204601857, 0.15047787405171384, 0.005962524166814267, 0.011994486700038975, -0.15146134933009028, -0.08712546467163171, -0.11812202816303724, 0.07823592924232332, 0.0688706119873155, 0.058786824432153925, 0.212396610280475, -0.1234403778724253, -0.028021656409598503, 0.4398822762215367, -0.04453611469916023, 0.010034195968332008, 0.2628824702667025, -0.23992899682026547, -0.16525445131432767, 0.11080920540739615, 0.1965733954193405, 0.21559315480781385, -0.20386067218481538, -0.05973684312424993, 0.005734768642399173, 0.19962590978068945, 0.07301334987203471, 0.09092048730384797, 0.44698374370077193, 0.14745792915868478, -0.05827977268908841, 0.0690398697692077, -0.16762189422913182, -0.07104353366258483, -0.19744655968418393, -0.1120960018119942, -0.09196181517080941, 0.1591037690299205, -0.19626063955281728, -0.15425073896282507, 0.24001687580200198, 0.12451583439654385, 0.23293902113651618, 0.061735226918990985, 0.23484660755755798, 0.06339143268922225, 0.12819267177614024, 0.17503158072344002, 0.297140393489733, 0.1991617217188319, 0.07761381941590792, -0.23610870798643774, 0.02721452486152068, 0.03133456729716645] |
710.1182 | Low-Density Parity-Check Codes for Nonergodic Block-Fading Channels | We solve the problem of designing powerful low-density parity-check (LDPC)
codes with iterative decoding for the block-fading channel. We first study the
case of maximum-likelihood decoding, and show that the design criterion is
rather straightforward. Unfortunately, optimal constructions for
maximum-likelihood decoding do not perform well under iterative decoding. To
overcome this limitation, we then introduce a new family of full-diversity LDPC
codes that exhibit near-outage-limit performance under iterative decoding for
all block-lengths. This family competes with multiplexed parallel turbo codes
suitable for nonergodic channels and recently reported in the literature.
| cs.IT math.IT | we solve the problem of designing powerful lowdensity paritycheck ldpc codes with iterative decoding for the blockfading channel we first study the case of maximumlikelihood decoding and show that the design criterion is rather straightforward unfortunately optimal constructions for maximumlikelihood decoding do not perform well under iterative decoding to overcome this limitation we then introduce a new family of fulldiversity ldpc codes that exhibit nearoutagelimit performance under iterative decoding for all blocklengths this family competes with multiplexed parallel turbo codes suitable for nonergodic channels and recently reported in the literature | [['we', 'solve', 'the', 'problem', 'of', 'designing', 'powerful', 'lowdensity', 'paritycheck', 'ldpc', 'codes', 'with', 'iterative', 'decoding', 'for', 'the', 'blockfading', 'channel', 'we', 'first', 'study', 'the', 'case', 'of', 'maximumlikelihood', 'decoding', 'and', 'show', 'that', 'the', 'design', 'criterion', 'is', 'rather', 'straightforward', 'unfortunately', 'optimal', 'constructions', 'for', 'maximumlikelihood', 'decoding', 'do', 'not', 'perform', 'well', 'under', 'iterative', 'decoding', 'to', 'overcome', 'this', 'limitation', 'we', 'then', 'introduce', 'a', 'new', 'family', 'of', 'fulldiversity', 'ldpc', 'codes', 'that', 'exhibit', 'nearoutagelimit', 'performance', 'under', 'iterative', 'decoding', 'for', 'all', 'blocklengths', 'this', 'family', 'competes', 'with', 'multiplexed', 'parallel', 'turbo', 'codes', 'suitable', 'for', 'nonergodic', 'channels', 'and', 'recently', 'reported', 'in', 'the', 'literature']] | [-0.2133655073644405, 0.010114733359954331, -0.07298680965192197, 0.11097376246732565, -0.03925846227224958, -0.36773236487793287, 0.07789700898195334, 0.4544571846556128, -0.28818216072290803, -0.22877801976721274, 0.12116037666917977, -0.15858244278541442, -0.22247685645863916, 0.1910901646550975, -0.14988640598492342, 0.17755370851857274, 0.10970255896825803, -0.013111149578282003, -0.22804826529947728, -0.3580062280832842, 0.25290698361363306, 0.23050346815686548, 0.33193898272146, -0.052892966014123785, 0.09029216636513462, 0.02387291639310758, 0.016496203780263202, -0.08199673623704676, -0.17448355944181682, 0.032513638726812316, 0.36646840989254836, 0.21596652744965775, 0.2135940601400445, -0.3495709584984049, -0.26497858496947907, 0.09432896611207489, 0.20900883349809754, 0.2205821148648314, -0.09804333504969569, -0.18753322429681626, 0.1832682125981939, -0.2021488443153042, 0.0481727786566225, -0.025177821328633287, -0.12085929265496938, 0.013836588959073585, -0.3336088617196244, -0.003206795808764991, 0.08370711088960132, 0.04499433673081103, 0.010898508393111524, -0.1811362545874514, 0.17984929620392956, 0.029460603962495422, -0.03588361366850774, 0.0029851206201599555, 0.02205171546469746, -0.0009315084885763988, -0.14381767770149903, 0.3081945169002885, 0.009365412861820353, -0.23317772373975662, 0.1453261774594456, 0.014720931921279832, -0.16157878811858342, 0.2111057565871919, 0.26888173998574194, 0.1356994997123989, -0.14219109691009763, 0.05130722547104331, -0.03074169098242615, 0.16266531662575984, 0.09346342383716465, 0.1612847318475166, 0.11612593272983442, 0.13516895180003027, 0.09065387379953617, 0.2354854108122167, -0.10077967373863532, -0.09569179257796553, -0.22785886801554286, -0.1094683176220468, -0.18265073221004202, -0.03363640588074478, -0.07623036984802914, -0.20568889635876658, 0.34285707104155855, 0.18229943510076932, 0.0836465094772199, 0.22481020353734493, 0.33374626323413314, 0.009043602932118968, 0.08367755194783232, 0.24245403693947062, 0.18211424216795502, 0.17154111738285321, 0.005399467899193307, -0.21886378035912019, 0.07305579300279195, 0.09348955172051289] |
710.1183 | Connectivity of Addition Cayley Graphs | For any finite abelian group $G$ and any subset $S\seq G$, we determine the
connectivity of the addition Cayley graph induced by $S$ on $G$. Moreover, we
show that if this graph is not complete, then it possesses a minimum vertex cut
of a special, explicitly described form.
| math.CO math.NT | for any finite abelian group g and any subset sseq g we determine the connectivity of the addition cayley graph induced by s on g moreover we show that if this graph is not complete then it possesses a minimum vertex cut of a special explicitly described form | [['for', 'any', 'finite', 'abelian', 'group', 'g', 'and', 'any', 'subset', 'sseq', 'g', 'we', 'determine', 'the', 'connectivity', 'of', 'the', 'addition', 'cayley', 'graph', 'induced', 'by', 's', 'on', 'g', 'moreover', 'we', 'show', 'that', 'if', 'this', 'graph', 'is', 'not', 'complete', 'then', 'it', 'possesses', 'a', 'minimum', 'vertex', 'cut', 'of', 'a', 'special', 'explicitly', 'described', 'form']] | [-0.17112435925593403, 0.13760111637492764, -0.0740704891529489, 0.019685624345661477, -0.17476303447434244, -0.12231015947033116, 0.08005373815986071, 0.4191068462542001, -0.2755847147447949, -0.24863799037213655, 0.07718544209653393, -0.264168914333184, -0.1814394162650755, 0.1015628008964531, -0.07917517522706631, -0.08394608300852965, 0.12618281356891262, 0.20682124730120313, -0.03216198323532305, -0.25667809333003305, 0.3414982095202233, -0.09485879385883504, 0.18809863384020456, 0.10263251456768906, 0.13065390718823416, 0.08152380899001072, 0.017308344945628593, 0.13582876119564505, -0.19107654267266277, 0.029934457124290156, 0.24333177986455726, 0.12140586071627889, 0.2150053108071393, -0.3735534678352006, -0.2132140525438367, 0.2808197853056357, 0.07532058894000154, 0.012519861536813861, 0.003029620876793373, -0.1986904279824267, 0.21666049101251236, -0.17224823307008186, -0.10288894991885791, -0.03885477207640701, 0.13149116279438455, -0.029121488312933038, -0.26769366504703745, -0.06816684669676296, 0.11940764813148912, 0.04801170132618318, 0.07541793319297597, -0.0908050227791388, -0.1088043537307927, 0.10012445569613036, -0.11200908770130828, 0.09744670400594144, 0.046917641555216716, -0.09773935725853006, -0.09561556269677277, 0.4007313226131683, -0.07763923823516419, -0.1993082223975278, 0.06206036561188546, -0.15479980812388214, -0.1816927766863336, 0.08995037764915206, 0.08386906547511512, 0.16912589305417336, -0.10440253836915214, 0.2075210291524777, -0.1511776716562305, 0.10698976114075234, 0.07575185137226227, -0.03836896063442877, 0.08611183849341691, 0.10610799806965317, 0.17572752152510146, 0.15801418283359803, 0.04336673067387273, 0.11661941550196485, -0.4093782016413009, -0.074611412083849, -0.2513942803711967, 0.11008278341955217, -0.15932356756387347, -0.20962678795640774, 0.4480480626374087, 0.06561359804757733, 0.16039321309034812, 0.05946306263076815, 0.18569891646187356, 0.11463979786222285, 0.07513884971156082, 0.2164310650563145, 0.08236219880587244, 0.18308070726553968, -0.16356359995861955, -0.23303193248253554, 0.03256700735816613, 0.16591054581581277] |
710.1184 | Geometric entanglement witnesses and bound entanglement | We study entanglement witnesses that can be constructed with regard to the
geometrical structure of the Hilbert-Schmidt space, i.e. we present how to use
these witnesses in the context of quantifying entanglement and the detection of
bound entangled states. We give examples for a particular three-parameter
family of states that are part of the \emph{magic simplex} of two-qutrit
states.
| quant-ph | we study entanglement witnesses that can be constructed with regard to the geometrical structure of the hilbertschmidt space ie we present how to use these witnesses in the context of quantifying entanglement and the detection of bound entangled states we give examples for a particular threeparameter family of states that are part of the emphmagic simplex of twoqutrit states | [['we', 'study', 'entanglement', 'witnesses', 'that', 'can', 'be', 'constructed', 'with', 'regard', 'to', 'the', 'geometrical', 'structure', 'of', 'the', 'hilbertschmidt', 'space', 'ie', 'we', 'present', 'how', 'to', 'use', 'these', 'witnesses', 'in', 'the', 'context', 'of', 'quantifying', 'entanglement', 'and', 'the', 'detection', 'of', 'bound', 'entangled', 'states', 'we', 'give', 'examples', 'for', 'a', 'particular', 'threeparameter', 'family', 'of', 'states', 'that', 'are', 'part', 'of', 'the', 'emphmagic', 'simplex', 'of', 'twoqutrit', 'states']] | [-0.11247727516407179, 0.1563433994523297, -0.08394559878477101, 0.076332758291293, 0.01270549905375909, -0.13485128240722974, 0.023374237226701136, 0.34331456521304987, -0.22592966600273878, -0.2593741041876502, 0.101488895238756, -0.28411467851660516, -0.1653470653661732, 0.16317675173108986, -0.06550815099084718, 0.0894825344400133, 0.05510145496829587, 0.01318447358345897, -0.09543072029758813, -0.24373594317506303, 0.436825277441639, 0.031026166469111282, 0.221071564032049, 0.0631123034804428, 0.08028663918218118, -0.03541143341937055, 0.029924787233694124, 0.02208897740515028, -0.16115066221391317, 0.19882035753551586, 0.27242094035244596, 0.22894361072172553, 0.206934203445059, -0.370096896917133, -0.16742801700197793, 0.16952801569980586, 0.10795690357621948, 0.17248159474930017, -0.02190017797273852, -0.34406091613789735, 0.009252904803823616, -0.19487389502257613, -0.13661739713180873, -0.17949077675624167, 0.03202960812249931, -0.05720430294099122, -0.21989847226877365, 0.0826814577015022, 0.05375619559406729, 0.011293463831199176, -0.019785204014377826, -0.05054826420431925, -0.04612855203607577, 0.10912941081323109, -0.06869470304414882, -0.06014968470228299, 0.07754234081307837, -0.09831052382429273, -0.1934600011682359, 0.3147956813730978, -0.0530720269781048, -0.2374345613169973, 0.1650836847533109, -0.14041894838466482, -0.15286755656539383, 0.01461304149637788, 0.18638049863215725, 0.15266701402300495, -0.08054258388770996, 0.04163578516405107, -0.11694793851446297, 0.14541222567085998, 0.07027246552850988, 0.1730512776333144, 0.13750054128468037, 0.05211990091049949, 0.09274382377832623, 0.27926582441925685, -0.06774149340344593, -0.11070234543186123, -0.3660839278314073, -0.24667010951680685, -0.2337264923094693, 0.05011045871207775, -0.06314228955331708, -0.1548463095421508, 0.4570483246076284, 0.10172055327822849, 0.18051595613755034, 0.05462853721011493, 0.16360343822230727, 0.08684409258224196, 0.03671873749383741, 0.06952228019471769, 0.2517532958758608, 0.13859931723672456, -0.035534029510819305, -0.2102765454052379, 0.07260196845410234, 0.07577353793243735] |
710.1185 | Higher entropic uncertainty relations for anti-commuting observables | Uncertainty relations lie at the very core of quantum mechanics, and form the
cornerstone of essentially all quantum cryptographic applications. In
particular, they play an important role in cryptographic protocols in the
bounded-quantum-storage model, where proving the security of all existing
protocols ultimately reduces to bounding such relations. Yet, very little is
known about such uncertainty relations for more than two measurements. Here, we
prove optimal entropic uncertainty relations for anti-commuting binary
observables for the Shannon entropy, and nearly optimal relations for the
collision entropy. Our results have immediate applications to quantum
cryptography.
| quant-ph | uncertainty relations lie at the very core of quantum mechanics and form the cornerstone of essentially all quantum cryptographic applications in particular they play an important role in cryptographic protocols in the boundedquantumstorage model where proving the security of all existing protocols ultimately reduces to bounding such relations yet very little is known about such uncertainty relations for more than two measurements here we prove optimal entropic uncertainty relations for anticommuting binary observables for the shannon entropy and nearly optimal relations for the collision entropy our results have immediate applications to quantum cryptography | [['uncertainty', 'relations', 'lie', 'at', 'the', 'very', 'core', 'of', 'quantum', 'mechanics', 'and', 'form', 'the', 'cornerstone', 'of', 'essentially', 'all', 'quantum', 'cryptographic', 'applications', 'in', 'particular', 'they', 'play', 'an', 'important', 'role', 'in', 'cryptographic', 'protocols', 'in', 'the', 'boundedquantumstorage', 'model', 'where', 'proving', 'the', 'security', 'of', 'all', 'existing', 'protocols', 'ultimately', 'reduces', 'to', 'bounding', 'such', 'relations', 'yet', 'very', 'little', 'is', 'known', 'about', 'such', 'uncertainty', 'relations', 'for', 'more', 'than', 'two', 'measurements', 'here', 'we', 'prove', 'optimal', 'entropic', 'uncertainty', 'relations', 'for', 'anticommuting', 'binary', 'observables', 'for', 'the', 'shannon', 'entropy', 'and', 'nearly', 'optimal', 'relations', 'for', 'the', 'collision', 'entropy', 'our', 'results', 'have', 'immediate', 'applications', 'to', 'quantum', 'cryptography']] | [-0.13189986654712507, 0.10092812472461818, -0.09739853310028232, 0.15565913218268823, -0.03714453317325122, -0.18747754715869994, 0.0647718996755899, 0.3164581136016916, -0.281472752396498, -0.29851417965506033, 0.09881237826825831, -0.2987230114678862, -0.13330532308487641, 0.2945446466941947, -0.10410668637343151, 0.16526598363153397, 0.03141121968616962, 0.0567098874348386, -0.07414751621689247, -0.24376389664667908, 0.3226605917762725, 0.04794400555497256, 0.2796226108536845, 0.0452321119386182, 0.08847083490321873, 0.05285399823114076, -0.014726809150869808, -0.027089043600504757, -0.15964881806404038, 0.15844544404817204, 0.3395727632306917, 0.15079351337075794, 0.258409162562701, -0.3958712666425654, -0.18686373978452656, 0.11688965065429809, 0.1469937089470125, 0.1322231218018519, -0.047772248051040404, -0.22067649368702444, 0.051122210759629486, -0.21030689977730313, -0.06930026190695904, -0.08769337506464092, 0.06336423026157482, -0.022813724859627665, -0.21154642012971703, 0.07914006147753969, 0.11902112183812004, 0.08332688388444724, -0.010736557870342205, -0.09751888345526431, 0.03009257800326312, 0.18101837224657497, -0.016310183865879412, -0.024779138868794806, 0.14225591591469222, -0.16106153789266783, -0.1618128375861273, 0.3965456262030589, 0.05963528239570673, -0.188245106929092, 0.15685790225923543, -0.08885257134604599, -0.23000089456677758, 8.05329075784132e-05, 0.1307240903467661, 0.08254987659353402, -0.14821881851962498, 0.056091599755980555, -0.030740838277564252, 0.17794309712205364, 0.06948208637655742, 0.1832977616208135, 0.18560961257385952, 0.07443100331921972, 0.0810840607455541, 0.10375541508928822, 0.0073535539590383085, -0.2117950488432681, -0.3181622682479761, -0.20711145943070772, -0.1613655663971659, 0.05912245874154201, -0.1488356161158487, -0.12206956846120026, 0.260867514424727, 0.188826315698304, 0.13041223342260044, 0.05369996600934575, 0.292196401545117, 0.09561101643628972, 0.0912300604245355, 0.1121843452515301, 0.29229700560331023, 0.17979816062956727, 0.06002112213892722, -0.15177988200836504, 0.13117576402021192, 0.0642264374551834] |
710.1186 | Heavy quark symmetry constraints on semileptonic form factors and decay
widths of doubly heavy baryons | We show how heavy quark symmetry constraints on doubly heavy baryon
semileptonic decay widths can be used to test the validity of different quark
model calculations. The large discrepancies in the results observed between
different quark model approaches can be understood in terms of a severe
violation of heavy quark spin symmetry constraints by some of those models.
| hep-ph nucl-th | we show how heavy quark symmetry constraints on doubly heavy baryon semileptonic decay widths can be used to test the validity of different quark model calculations the large discrepancies in the results observed between different quark model approaches can be understood in terms of a severe violation of heavy quark spin symmetry constraints by some of those models | [['we', 'show', 'how', 'heavy', 'quark', 'symmetry', 'constraints', 'on', 'doubly', 'heavy', 'baryon', 'semileptonic', 'decay', 'widths', 'can', 'be', 'used', 'to', 'test', 'the', 'validity', 'of', 'different', 'quark', 'model', 'calculations', 'the', 'large', 'discrepancies', 'in', 'the', 'results', 'observed', 'between', 'different', 'quark', 'model', 'approaches', 'can', 'be', 'understood', 'in', 'terms', 'of', 'a', 'severe', 'violation', 'of', 'heavy', 'quark', 'spin', 'symmetry', 'constraints', 'by', 'some', 'of', 'those', 'models']] | [-0.054735791943726485, 0.2818790108270558, -0.06799828097352693, 0.19381036354100395, -0.06728863571609917, -0.1507830121313575, 0.08641231990547786, 0.2958404284195396, -0.21580857616560212, -0.30156907111663245, -0.017956238344375944, -0.281409768034415, 0.02191766152351067, 0.10908372017277951, 0.027008472636727423, 0.11737400627341764, 0.0739745489032618, -0.02310190748037963, -0.16230604425875533, -0.24848370549493823, 0.2952724584249844, -0.054184596279057966, 0.2573867367965908, 0.18355836364408507, -0.04901375987663351, -0.08294077016059952, -0.008654580403376242, 9.983935361278469e-05, -0.09231006460874502, 0.04972426023270036, 0.15504453976615784, 0.0932695765754786, 0.12395025758425994, -0.45804952380472214, -0.1740045334886888, 0.11693187758069613, 0.15183695569505978, 0.17857218023132662, -0.059156683219420116, -0.3268700883691681, 0.10893404098420308, -0.23978633335630956, -0.14666773132369693, -0.13666448395313888, -0.0779368811576017, -0.014619036834558537, -0.32018679438223097, 0.12181941924038632, -0.049831825701905225, 0.0012139771724519208, 0.006265451509409167, -0.21502048172185134, -0.07052672895249622, 0.04049424961980047, 0.19727861607880814, -0.015965340859738403, 0.12563603138149684, -0.1725813487608885, -0.18340316093687353, 0.469384242748392, -0.10308367145601018, -0.23287470455698925, 0.15526400948874652, -0.1860995436938287, -0.18805628009782782, 0.054310586335587094, 0.2570746082587746, 0.09356140900917094, -0.21286747546802307, 0.09904580176326222, -0.095084004473455, 0.14471881220052982, 0.05343405350015081, 0.077596431469609, 0.2620857049036643, 0.1863037872545678, -0.09945236339137473, 0.03853132187164035, -0.056348296022845495, -0.08483428071285117, -0.3875988766165643, -0.049460140847729456, -0.10890689896869249, 0.030071295227791214, -0.1261589953611637, -0.06156682785086591, 0.4091336778525648, 0.12857926523730415, 0.25711844716991844, -0.03114221322526834, 0.29026969371299294, 0.11058072453557417, 0.11223116348465455, 0.03838189244109752, 0.2824154740369052, 0.2089976140755582, 0.08336398035191514, -0.32959657059661274, 0.06995666763697077, 0.057898509854065444] |
710.1187 | Stochastic thermodynamics: Principles and perspectives | Stochastic thermodynamics provides a framework for describing small systems
like colloids or biomolecules driven out of equilibrium but still in contact
with a heat bath. Both, a first-law like energy balance involving exchanged
heat and entropy production entering refinements of the second law can
consistently be defined along single stochastic trajectories. Various exact
relations involving the distribution of such quantities like integral and
detailed fluctuation theorems for total entropy production and the Jarzynski
relation follow from such an approach based on Langevin dynamics. Analogues of
these relations can be proven for any system obeying a stochastic master
equation like, in particular, (bio)chemically driven enzyms or whole reaction
networks. The perspective of investigating such relations for stochastic field
equations like the Kardar-Parisi-Zhang equation is sketched as well.
| cond-mat.stat-mech cond-mat.soft | stochastic thermodynamics provides a framework for describing small systems like colloids or biomolecules driven out of equilibrium but still in contact with a heat bath both a firstlaw like energy balance involving exchanged heat and entropy production entering refinements of the second law can consistently be defined along single stochastic trajectories various exact relations involving the distribution of such quantities like integral and detailed fluctuation theorems for total entropy production and the jarzynski relation follow from such an approach based on langevin dynamics analogues of these relations can be proven for any system obeying a stochastic master equation like in particular biochemically driven enzyms or whole reaction networks the perspective of investigating such relations for stochastic field equations like the kardarparisizhang equation is sketched as well | [['stochastic', 'thermodynamics', 'provides', 'a', 'framework', 'for', 'describing', 'small', 'systems', 'like', 'colloids', 'or', 'biomolecules', 'driven', 'out', 'of', 'equilibrium', 'but', 'still', 'in', 'contact', 'with', 'a', 'heat', 'bath', 'both', 'a', 'firstlaw', 'like', 'energy', 'balance', 'involving', 'exchanged', 'heat', 'and', 'entropy', 'production', 'entering', 'refinements', 'of', 'the', 'second', 'law', 'can', 'consistently', 'be', 'defined', 'along', 'single', 'stochastic', 'trajectories', 'various', 'exact', 'relations', 'involving', 'the', 'distribution', 'of', 'such', 'quantities', 'like', 'integral', 'and', 'detailed', 'fluctuation', 'theorems', 'for', 'total', 'entropy', 'production', 'and', 'the', 'jarzynski', 'relation', 'follow', 'from', 'such', 'an', 'approach', 'based', 'on', 'langevin', 'dynamics', 'analogues', 'of', 'these', 'relations', 'can', 'be', 'proven', 'for', 'any', 'system', 'obeying', 'a', 'stochastic', 'master', 'equation', 'like', 'in', 'particular', 'biochemically', 'driven', 'enzyms', 'or', 'whole', 'reaction', 'networks', 'the', 'perspective', 'of', 'investigating', 'such', 'relations', 'for', 'stochastic', 'field', 'equations', 'like', 'the', 'kardarparisizhang', 'equation', 'is', 'sketched', 'as', 'well']] | [-0.10940483499225229, 0.13700993366271724, -0.11654307679110207, 0.12268312149588019, -0.05247390968352556, -0.17499457012861966, 0.03342629538103938, 0.2530731230452657, -0.3191180000305176, -0.2983487013578415, 0.07261395790427923, -0.33931404051184655, -0.12597982634417712, 0.2571597478296608, -0.0005432647056877613, 0.09246899973601103, 0.029434308209456504, 0.04168199422769248, -0.04340121275372803, -0.12882750369608403, 0.31737693823873997, 0.027605839401483537, 0.26253591603785753, 0.035232581079006196, 0.15054271269217134, 0.02581851290166378, -0.019614550451748074, 0.07477532370761036, -0.13941871244460344, 0.06768418577732518, 0.19685008396767079, 0.07966171496734023, 0.21794319641590118, -0.4677441121786833, -0.25958107712119816, 0.10658699137344957, 0.1371486933482811, 0.10295656916871666, -0.04930648457724601, -0.24269384606182576, -0.03381349388882518, -0.17076676869392396, -0.14425728131830692, -0.13826840705052018, -0.0031652141204103826, 0.11823837303183973, -0.2347096305936575, 0.1470394868552685, 0.08709498602245003, 0.05164251784491353, -0.08030929827876389, -0.08427805269416422, -0.04614486778434366, 0.1234015683196485, 0.01150362028554082, -0.02142747080582194, 0.19818416193127633, -0.1466458234973252, -0.09814731429331004, 0.3784389127790928, -0.07374225512705743, -0.2535455348789692, 0.18026156863570214, -0.10511407272890211, -0.17670753786340357, 0.07800392654165625, 0.1441469150185585, 0.13371688491042005, -0.26867618460580706, 0.05810028410935775, 0.04246843806654215, 0.10883782417653129, 0.0636206132210791, 0.023982128612697124, 0.22587002148479224, 0.1689351406749338, 0.023065580073744058, 0.1492468966897577, -0.005729108871892094, -0.23739289961755275, -0.31703446673601865, -0.20285056074429303, -0.14850185892730952, 0.13408800042793154, -0.1078468174036825, -0.17307250560820103, 0.2740984711199999, 0.09531431507319212, 0.15568848929554224, 0.06588069560192525, 0.23994365940988063, 0.19770416947361083, 0.028240024054422976, 0.0831752617135644, 0.18162847956269978, 0.1679681108146906, 0.16900325660780072, -0.2241696272979025, 0.07529174577072263, 0.09139436500519514] |
710.1188 | Towards a non-perturbative matching of HQET and QCD with dynamical light
quarks | We explain how the strategy of solving renormalization problems in HQET
non-perturbatively by a matching to QCD in finite volume can be implemented to
include dynamical fermions. As a primary application, some elements of an HQET
computation of the mass of the b-quark beyond the leading order with N_f=2 are
outlined. In particular, the matching of HQET and QCD requires relativistic QCD
simulations in a volume with L ~ 0.5 fm, which will serve to quantitatively
determine the heavy quark mass dependence of heavy-light meson observables in
the continuum limit of finite-volume two-flavour lattice QCD. As a preparation
for the latter, we report on our determination of the renormalization constants
and improvement coefficients relating the renormalized current and subtracted
bare quark mass in the relevant weak coupling region. The calculation of these
coefficients employs a constant physics condition in the Schroedinger
functional scheme, where the box size L is fixed by working at a prescribed
value of the renormalized coupling.
| hep-lat | we explain how the strategy of solving renormalization problems in hqet nonperturbatively by a matching to qcd in finite volume can be implemented to include dynamical fermions as a primary application some elements of an hqet computation of the mass of the bquark beyond the leading order with n_f2 are outlined in particular the matching of hqet and qcd requires relativistic qcd simulations in a volume with l 05 fm which will serve to quantitatively determine the heavy quark mass dependence of heavylight meson observables in the continuum limit of finitevolume twoflavour lattice qcd as a preparation for the latter we report on our determination of the renormalization constants and improvement coefficients relating the renormalized current and subtracted bare quark mass in the relevant weak coupling region the calculation of these coefficients employs a constant physics condition in the schroedinger functional scheme where the box size l is fixed by working at a prescribed value of the renormalized coupling | [['we', 'explain', 'how', 'the', 'strategy', 'of', 'solving', 'renormalization', 'problems', 'in', 'hqet', 'nonperturbatively', 'by', 'a', 'matching', 'to', 'qcd', 'in', 'finite', 'volume', 'can', 'be', 'implemented', 'to', 'include', 'dynamical', 'fermions', 'as', 'a', 'primary', 'application', 'some', 'elements', 'of', 'an', 'hqet', 'computation', 'of', 'the', 'mass', 'of', 'the', 'bquark', 'beyond', 'the', 'leading', 'order', 'with', 'n_f2', 'are', 'outlined', 'in', 'particular', 'the', 'matching', 'of', 'hqet', 'and', 'qcd', 'requires', 'relativistic', 'qcd', 'simulations', 'in', 'a', 'volume', 'with', 'l', '05', 'fm', 'which', 'will', 'serve', 'to', 'quantitatively', 'determine', 'the', 'heavy', 'quark', 'mass', 'dependence', 'of', 'heavylight', 'meson', 'observables', 'in', 'the', 'continuum', 'limit', 'of', 'finitevolume', 'twoflavour', 'lattice', 'qcd', 'as', 'a', 'preparation', 'for', 'the', 'latter', 'we', 'report', 'on', 'our', 'determination', 'of', 'the', 'renormalization', 'constants', 'and', 'improvement', 'coefficients', 'relating', 'the', 'renormalized', 'current', 'and', 'subtracted', 'bare', 'quark', 'mass', 'in', 'the', 'relevant', 'weak', 'coupling', 'region', 'the', 'calculation', 'of', 'these', 'coefficients', 'employs', 'a', 'constant', 'physics', 'condition', 'in', 'the', 'schroedinger', 'functional', 'scheme', 'where', 'the', 'box', 'size', 'l', 'is', 'fixed', 'by', 'working', 'at', 'a', 'prescribed', 'value', 'of', 'the', 'renormalized', 'coupling']] | [-0.10278019618166834, 0.2124826420171211, -0.09199380602558735, 0.063708922656622, -0.04390785874031578, -0.0791437555428114, 0.08892829663013313, 0.31493883868737976, -0.17993570047096824, -0.2631555097045834, 0.057345669070088874, -0.2756862975173753, -0.015527553267706678, 0.11617461881899047, 0.03522415317846872, 0.12104030631178017, 0.03745373636015556, 0.043417257040815206, -0.12587273534062998, -0.21644024835583173, 0.3322944253399008, 0.019772527768692507, 0.19807791972310287, 0.17866503701211428, 0.04663218332618569, 0.01891610911116004, -0.06694028622019778, -0.01133916410471096, -0.1366706018880853, 0.06989707971583325, 0.2252458951124078, -0.018185415103117813, 0.20253498027534605, -0.3539757862608036, -0.1654252083756106, 0.03833590771229762, 0.15403443038077005, 0.13904966042104686, -0.02058154009590101, -0.24108425920694457, 0.0825331495019004, -0.19898663360607932, -0.1914966134874314, -0.12057458461269974, -0.039982094810162704, -0.04434597022456568, -0.3468698289760816, 0.07940131844659834, -0.07331223533419803, 0.021422404608449096, 0.005570833422624324, -0.18510590339044355, -0.005574399147053841, 0.12683613821878773, 0.07751667351753351, 0.07826559822244933, 0.14847385184839368, -0.18156236514036175, -0.11558748081139049, 0.46966723911464214, -0.10164871627359458, -0.20241974975398314, 0.10869936451884045, -0.15767317602656922, -0.1351876308022758, 0.08843675215066697, 0.17368816995389946, 0.09765092984285592, -0.16148446076813172, 0.14930616622774587, -0.05226083108921002, 0.17696059550269969, 0.06836213916247277, 0.055125931553167744, 0.18862717618152453, 0.16414778041448327, 0.013210225001024376, 0.06331816242287322, -0.014260149522795805, -0.12210836422295784, -0.4011440461489764, -0.08553537663728374, -0.18067210580298454, 0.06902098298400829, -0.16561340388621176, -0.18161466279588406, 0.36468082309616623, 0.1459290114518419, 0.2170073359958687, 0.03092198060117457, 0.28674299721225344, 0.14578210392237623, 0.09299725424879049, 0.06362279604405821, 0.2640747128754822, 0.20877787335219342, 0.11540561435896458, -0.3359990409434826, -0.05649997627819484, 0.18388716009029615] |
710.1189 | IC5063: AGN driven outflow of warm and cold gas | We present new ATCA 17- and 24-GHz radio images and ESO-NTT optical spectra
of the radio-loud Seyfert galaxy IC5063, the first galaxy in which a fast (~
600 km/s) outflow of neutral hydrogen was discovered. The new radio data
confirm the triple radio structure with a central core and two resolved radio
lobes. This implies that the previously detected fast outflow of neutral gas is
occurring off-nucleus, near a radio lobe about 0.5 kpc from the core. The
ionised gas shows complex kinematics in the region co-spatial with the radio
emission. Broad and blueshifted (~ 500 km/s) emission is observed in the region
of the radio lobe, at the same location as the blueshifted HI absorption. The
velocity of the ionised outflow is similar to the one found in HI. The first
order correspondence between the radio and optical properties suggests that the
outflow is driven by the interaction between the radio jet and the ISM. Despite
the high outflow velocities, no evidence is found for the ionisation of the gas
being due to fast shocks in the region of the outflow, indicating that
photoionisation from the AGN is likely to be the dominant ionisation mechanism.
The outflow rate of the warm (ionised) gas is small compared to that of the
cold gas. The mass outflow rate associated with the HI is in the same range as
for ``mild'' starburst-driven superwinds in ULIRGs. However, in IC5063, the
AGN-driven outflow appears to be limited to the inner kpc region of the galaxy.
The kinetic power associated with the HI outflow is a small fraction (a few x
10^-4) of the Eddington luminosity of the galaxy but is a significant fraction
(~ 0.1) of the nuclear bolometric luminosity. In IC5063, the outflows may have
sufficient kinetic power to have a significant impact on the evolution of the
ISM in the host galaxy.
| astro-ph | we present new atca 17 and 24ghz radio images and esontt optical spectra of the radioloud seyfert galaxy ic5063 the first galaxy in which a fast 600 kms outflow of neutral hydrogen was discovered the new radio data confirm the triple radio structure with a central core and two resolved radio lobes this implies that the previously detected fast outflow of neutral gas is occurring offnucleus near a radio lobe about 05 kpc from the core the ionised gas shows complex kinematics in the region cospatial with the radio emission broad and blueshifted 500 kms emission is observed in the region of the radio lobe at the same location as the blueshifted hi absorption the velocity of the ionised outflow is similar to the one found in hi the first order correspondence between the radio and optical properties suggests that the outflow is driven by the interaction between the radio jet and the ism despite the high outflow velocities no evidence is found for the ionisation of the gas being due to fast shocks in the region of the outflow indicating that photoionisation from the agn is likely to be the dominant ionisation mechanism the outflow rate of the warm ionised gas is small compared to that of the cold gas the mass outflow rate associated with the hi is in the same range as for mild starburstdriven superwinds in ulirgs however in ic5063 the agndriven outflow appears to be limited to the inner kpc region of the galaxy the kinetic power associated with the hi outflow is a small fraction a few x 104 of the eddington luminosity of the galaxy but is a significant fraction 01 of the nuclear bolometric luminosity in ic5063 the outflows may have sufficient kinetic power to have a significant impact on the evolution of the ism in the host galaxy | [['we', 'present', 'new', 'atca', '17', 'and', '24ghz', 'radio', 'images', 'and', 'esontt', 'optical', 'spectra', 'of', 'the', 'radioloud', 'seyfert', 'galaxy', 'ic5063', 'the', 'first', 'galaxy', 'in', 'which', 'a', 'fast', '600', 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710.119 | Power Efficient Scheduling under Delay Constraints over Multi-user
Wireless Channels | In this paper, we consider the problem of power efficient uplink scheduling
in a Time Division Multiple Access (TDMA) system over a fading wireless
channel. The objective is to minimize the power expenditure of each user
subject to satisfying individual user delay. We make the practical assumption
that the system statistics are unknown, i.e., the probability distributions of
the user arrivals and channel states are unknown. The problem has the structure
of a Constrained Markov Decision Problem (CMDP). Determining an optimal policy
under for the CMDP faces the problems of state space explosion and unknown
system statistics. To tackle the problem of state space explosion, we suggest
determining the transmission rate of a particular user in each slot based on
its channel condition and buffer occupancy only. The rate allocation algorithm
for a particular user is a learning algorithm that learns about the buffer
occupancy and channel states of that user during system execution and thus
addresses the issue of unknown system statistics. Once the rate of each user is
determined, the proposed algorithm schedules the user with the best rate. Our
simulations within an IEEE 802.16 system demonstrate that the algorithm is
indeed able to satisfy the user specified delay constraints. We compare the
performance of our algorithm with the well known M-LWDF algorithm. Moreover, we
demonstrate that the power expended by the users under our algorithm is quite
low.
| cs.NI cs.MA | in this paper we consider the problem of power efficient uplink scheduling in a time division multiple access tdma system over a fading wireless channel the objective is to minimize the power expenditure of each user subject to satisfying individual user delay we make the practical assumption that the system statistics are unknown ie the probability distributions of the user arrivals and channel states are unknown the problem has the structure of a constrained markov decision problem cmdp determining an optimal policy under for the cmdp faces the problems of state space explosion and unknown system statistics to tackle the problem of state space explosion we suggest determining the transmission rate of a particular user in each slot based on its channel condition and buffer occupancy only the rate allocation algorithm for a particular user is a learning algorithm that learns about the buffer occupancy and channel states of that user during system execution and thus addresses the issue of unknown system statistics once the rate of each user is determined the proposed algorithm schedules the user with the best rate our simulations within an ieee 80216 system demonstrate that the algorithm is indeed able to satisfy the user specified delay constraints we compare the performance of our algorithm with the well known mlwdf algorithm moreover we demonstrate that the power expended by the users under our algorithm is quite low | [['in', 'this', 'paper', 'we', 'consider', 'the', 'problem', 'of', 'power', 'efficient', 'uplink', 'scheduling', 'in', 'a', 'time', 'division', 'multiple', 'access', 'tdma', 'system', 'over', 'a', 'fading', 'wireless', 'channel', 'the', 'objective', 'is', 'to', 'minimize', 'the', 'power', 'expenditure', 'of', 'each', 'user', 'subject', 'to', 'satisfying', 'individual', 'user', 'delay', 'we', 'make', 'the', 'practical', 'assumption', 'that', 'the', 'system', 'statistics', 'are', 'unknown', 'ie', 'the', 'probability', 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710.1191 | Compacton-like solutions of the hydrodynamic system describing relaxing
media | We show the existence of a compacton-like solutions within the relaxing
hydrodynamic-type model and perform numerical study of attracting features of
these solutions.
| nlin.PS | we show the existence of a compactonlike solutions within the relaxing hydrodynamictype model and perform numerical study of attracting features of these solutions | [['we', 'show', 'the', 'existence', 'of', 'a', 'compactonlike', 'solutions', 'within', 'the', 'relaxing', 'hydrodynamictype', 'model', 'and', 'perform', 'numerical', 'study', 'of', 'attracting', 'features', 'of', 'these', 'solutions']] | [-0.18902246038550916, 0.001425775517102169, -0.1078625995989727, 0.038457929116228355, 0.012112352430172588, -0.10720536414452869, 0.041646445493983185, 0.28674152291015437, -0.24337471989185913, -0.24548393896902385, 0.1529017233127809, -0.31596163522614085, -0.17244425885703252, 0.1516348330769688, 0.04336579211825586, 0.08604673393394636, 0.11066707879628825, -0.014801899214153704, -0.10317304285759431, -0.1624936256557703, 0.34371152985841036, -0.03771140912304754, 0.23195413913091886, 0.021669171102668926, 0.0990746121286698, -0.08671310183632633, -0.021706447977086773, 0.03615192518286083, -0.2150657341775039, 0.13554656137104915, 0.1905131621853165, 0.12833713513353598, 0.28316688991111255, -0.45186423024405603, -0.23592110848783152, 0.1104440591905428, 0.15434223073332207, 0.14286041033008826, -0.10212124710011741, -0.30042460342140304, 0.1342393914035157, -0.13165634789544603, -0.2051732677804387, -0.18066583460439806, -0.04786158871391545, 0.10612732974771896, -0.2510057130585546, 0.0801703374751884, 0.08460179590822561, 0.03259340005562357, -0.1817103613006032, -0.019537987389966198, -0.051239064145509314, 0.07248379389310013, 0.1318526699602523, -0.09297131201373818, 0.019691178433435118, -0.17818486552847468, -0.134298512145229, 0.36923465651014575, -0.06665141054469606, -0.2479661211533391, 0.2388617600435796, -0.08124976070678752, -0.13504178534545327, 0.11714489749916222, 0.19470399608025732, 0.19142021951468094, -0.0856723197857323, 0.10964273272396025, -0.12879218881868798, 0.1718578684427168, 0.04975916709467445, 0.027818039343084976, 0.20537111017367113, 0.21460943758163764, 0.06107725688944692, 0.16608834600723957, -0.020774156341086262, -0.16249514597913492, -0.33369689685818943, -0.09968594639845517, -0.08143806927230048, 0.06544785900041461, -0.07209765965703611, -0.2065052769916213, 0.4680340158874574, 0.19891922135391962, 0.19198063793389694, 0.08333560848689597, 0.18304432879971422, 0.10726619001639925, -0.011205621671093546, 0.08322240217872288, 0.26945900248930504, 0.08582594411690599, 0.05855144795192325, -0.2318820448835259, -0.03146208577748874, 0.10135972523130476] |
710.1192 | The symmetries of five-dimensional minimal supergravity reduced to three
dimensions | The 14 Killing vectors of the target space for five-dimensional minimal
supergravity reduced to three dimensions are explicitly constructed in terms of
the original field variables. These vectors generate the Lie algebra of $G_2$.
We also construct a symmetrical $7\times7$ matrix representative of the coset
$G_{2(+2)}/((SL(2,R)\times SL(2,R))$ as a function of the same fields.
| gr-qc hep-th math-ph math.MP | the 14 killing vectors of the target space for fivedimensional minimal supergravity reduced to three dimensions are explicitly constructed in terms of the original field variables these vectors generate the lie algebra of g_2 we also construct a symmetrical 7times7 matrix representative of the coset g_22sl2rtimes sl2r as a function of the same fields | [['the', '14', 'killing', 'vectors', 'of', 'the', 'target', 'space', 'for', 'fivedimensional', 'minimal', 'supergravity', 'reduced', 'to', 'three', 'dimensions', 'are', 'explicitly', 'constructed', 'in', 'terms', 'of', 'the', 'original', 'field', 'variables', 'these', 'vectors', 'generate', 'the', 'lie', 'algebra', 'of', 'g_2', 'we', 'also', 'construct', 'a', 'symmetrical', '7times7', 'matrix', 'representative', 'of', 'the', 'coset', 'g_22sl2rtimes', 'sl2r', 'as', 'a', 'function', 'of', 'the', 'same', 'fields']] | [-0.14806660471691024, 0.1346356647985953, 0.014770869614073524, 0.0809684823681083, -0.09756560770242854, -0.08099764028641705, -0.05146763277136617, 0.32683115311104943, -0.22867545377704557, -0.23551621877898773, 0.13074882556328601, -0.2233491575655838, -0.15856129654545198, 0.10730795622630804, -0.05918705154693237, 0.004883177181774819, 0.0009630033590063384, 0.14128921287893145, -0.175456326265164, -0.31437913711286253, 0.3756423282643987, -0.04085030316693721, 0.2856377424948193, -0.11016314849257469, 0.20899986855133815, -0.0011000253704238545, 0.002438493452414318, -0.020671959759999515, -0.09913369330267112, 0.150108355280719, 0.26265032147057354, 0.13013323063582735, 0.1117265274817193, -0.3920063697905452, -0.16648217332247575, 0.12237713799846393, 0.18172102412036448, 0.09725262590304569, 0.00841990313967, -0.27528497735383334, 0.05438541566642622, -0.17541326011565547, -0.1664754000009486, -0.07942282026029986, 0.02688938745133648, -0.05402082830119913, -0.26702267628301074, 0.049168177090770634, 0.020687826928527404, 0.0714122063299227, -0.10460415178116549, -0.1448160215977286, -0.13092910602723282, 0.09863565025713157, 0.0454395707110288, 0.0649268326556517, 0.12812687541979054, -0.10790968810841958, -0.15447344225335488, 0.3396756055040492, -0.05626921495422721, -0.31715453581677544, 0.09418690665107635, -0.14694288296245592, -0.141358524532094, 0.10405006771476043, 0.1511992991005105, 0.15073655352548318, -0.14979182608011696, 0.18032640139399855, -0.11401738953524425, 0.06352439267060685, 0.08529281277313, 0.020770702769772872, 0.16123293940391806, 0.0704749887841495, 0.008766073715243558, 0.15521870770802101, -0.0032881914586242703, -0.06215419180053114, -0.41538346043132524, -0.1727747396669454, -0.14538119162467342, 0.08723449529390093, -0.22063451803599796, -0.188161073959674, 0.47640495546403583, 0.06824046375091981, 0.19277445630480847, 0.056952262530103326, 0.15010613516938906, 0.08848740496560586, 0.13791089922651062, 0.053589018139367305, 0.19465747559486232, 0.17100484271240593, -0.009354929922631493, -0.1741101128853323, -0.1412378502750976, 0.15484110907548004] |
710.1193 | Effect of angular momentum distribution on gravitational loss-cone
instability in stellar clusters around massive BH | Small perturbations in spherical and thin disk stellar clusters surrounding
massive a black hole are studied. Due to the black hole, stars with
sufficiently low angular momentum escape from the system through the loss cone.
We show that stability properties of spherical clusters crucially depend on
whether the distribution of stars is monotonic or non-monotonic in angular
momentum. It turns out that only non-monotonic distributions can be unstable.
At the same time the instability in disk clusters is possible for both types of
distributions.
| astro-ph | small perturbations in spherical and thin disk stellar clusters surrounding massive a black hole are studied due to the black hole stars with sufficiently low angular momentum escape from the system through the loss cone we show that stability properties of spherical clusters crucially depend on whether the distribution of stars is monotonic or nonmonotonic in angular momentum it turns out that only nonmonotonic distributions can be unstable at the same time the instability in disk clusters is possible for both types of distributions | [['small', 'perturbations', 'in', 'spherical', 'and', 'thin', 'disk', 'stellar', 'clusters', 'surrounding', 'massive', 'a', 'black', 'hole', 'are', 'studied', 'due', 'to', 'the', 'black', 'hole', 'stars', 'with', 'sufficiently', 'low', 'angular', 'momentum', 'escape', 'from', 'the', 'system', 'through', 'the', 'loss', 'cone', 'we', 'show', 'that', 'stability', 'properties', 'of', 'spherical', 'clusters', 'crucially', 'depend', 'on', 'whether', 'the', 'distribution', 'of', 'stars', 'is', 'monotonic', 'or', 'nonmonotonic', 'in', 'angular', 'momentum', 'it', 'turns', 'out', 'that', 'only', 'nonmonotonic', 'distributions', 'can', 'be', 'unstable', 'at', 'the', 'same', 'time', 'the', 'instability', 'in', 'disk', 'clusters', 'is', 'possible', 'for', 'both', 'types', 'of', 'distributions']] | [-0.12765446032530495, 0.16605258731925415, -0.11435248156721216, 0.12108834913011551, -0.08523724563530691, -0.0753278130765206, 0.02046127197709644, 0.37883393674911486, -0.22616922185711918, -0.29844602804985787, 0.0479398851263492, -0.28507218168427545, -0.03325883135299331, 0.18792911696281017, -0.02540372220183989, 0.0170988799516289, 0.06598465409617693, -0.018972001080068628, -0.08048325108012207, -0.23735079851688906, 0.38422898254135535, 0.08402970987593844, 0.21793918157484204, -0.005183644470803085, 0.06460273584594861, -0.03655119676287064, 0.022467582464395536, 0.05556866929068097, -0.1390613594843931, -0.02536811314348597, 0.1689751767614022, 0.09824896063600179, 0.22834652563601376, -0.3918492963892363, -0.2042740566567296, 0.058754260086321404, 0.21405039371512385, 0.08629234343589771, -0.08501217784006647, -0.18724534376191773, 0.10751904369265373, -0.17635008840200803, -0.18543050243031411, -0.02673805911382217, 0.09649378056859687, 0.07190231973349694, -0.2077463862709313, 0.16394722514225923, 0.10682633998138565, -0.027004053960332557, -0.11077133096044972, -0.07469357068267916, -0.1448082596651234, 0.07997682081657417, 0.09688645597392072, 0.012641821644224581, 0.20971737003197805, -0.1266652897465974, 0.009147931023367814, 0.36037501482115614, -0.03630071533899311, -0.20137755280648845, 0.2331283172132403, -0.2824702007984299, -0.08769675351989765, 0.15160865988305194, 0.20701636071316898, 0.21262954697123773, -0.11524967735056721, 0.07373983717566478, -0.021830615970040008, 0.20773131702472233, 0.12636020740250214, 0.07201557668546836, 0.3868231526354239, 0.10066373941178124, 0.041868439001042305, 0.14936329815619892, -0.13275008131694493, -0.11882987615743852, -0.2350260249582962, -0.09313690294289872, -0.16979338045764183, 0.06690590280950778, -0.1466762625078402, -0.1778295336601635, 0.29963423232991426, 0.0574462919252082, 0.25611260854860857, -0.0009658555167594127, 0.2695479728059754, 0.10000833936612166, 0.10125085146587696, 0.13396594235451803, 0.3042017530561203, 0.13645822731112794, 0.08638807410291822, -0.2818049467307338, 0.07397478617106874, -0.019226873215908807] |
710.1194 | A systematic search for novae in M31 on a large set of digitized
archival Schmidt plates | This paper reports on the detection of optical novae in our neighbour galaxy
M31 based on digitized historical Tautenburg Schmidt plates. The accurate
positions of the detected novae lead to a much larger database when searching
for recurrent novae in M31. We conducted a systematic search for novae on 306
digitized Tautenburg Schmidt plates covering a time span of 36 years from 1960
to 1996. From the database of both ~ 300 000 light curves and about one million
detections on only one plate per colour band, nova candidates were efficiently
selected by automated algorithms and subsequently individually inspected by
eye. We report the detection of 84 nova candidates. We found 55 nova candidates
from the automated analysis of the light curves. Among these, 22 were
previously unknown, 12 were known but not identified on Tautenburg Schmidt
plates before, and 21 novae had been previously discovered on Tautenburg
plates. An additional 29 known novae could be confirmed by the detailed
investigation of single detections. One of our newly discovered nova candidates
shows a high position coincidence with a nova detected about 30 years earlier.
Therefore, this object is likely to be a recurrent nova. Furthermore, we
re-investigated all 41 nova candidates previously found on Tautenburg plates
and confirm all but two. Positions are given for all nova candidates with a
typical accuracy of ~ 0.4 arcsec. We present light curves and finding charts as
online material. The analysis of the plates has shown the wealth of information
still buried in old plate archives. Extrapolating from this survey,
digitization of other historical M31 plate archives (e.g. from the Mount Wilson
or Asiago observatories) for a systematic nova search looks very promising.
| astro-ph | this paper reports on the detection of optical novae in our neighbour galaxy m31 based on digitized historical tautenburg schmidt plates the accurate positions of the detected novae lead to a much larger database when searching for recurrent novae in m31 we conducted a systematic search for novae on 306 digitized tautenburg schmidt plates covering a time span of 36 years from 1960 to 1996 from the database of both 300 000 light curves and about one million detections on only one plate per colour band nova candidates were efficiently selected by automated algorithms and subsequently individually inspected by eye we report the detection of 84 nova candidates we found 55 nova candidates from the automated analysis of the light curves among these 22 were previously unknown 12 were known but not identified on tautenburg schmidt plates before and 21 novae had been previously discovered on tautenburg plates an additional 29 known novae could be confirmed by the detailed investigation of single detections one of our newly discovered nova candidates shows a high position coincidence with a nova detected about 30 years earlier therefore this object is likely to be a recurrent nova furthermore we reinvestigated all 41 nova candidates previously found on tautenburg plates and confirm all but two positions are given for all nova candidates with a typical accuracy of 04 arcsec we present light curves and finding charts as online material the analysis of the plates has shown the wealth of information still buried in old plate archives extrapolating from this survey digitization of other historical m31 plate archives eg from the mount wilson or asiago observatories for a systematic nova search looks very promising | [['this', 'paper', 'reports', 'on', 'the', 'detection', 'of', 'optical', 'novae', 'in', 'our', 'neighbour', 'galaxy', 'm31', 'based', 'on', 'digitized', 'historical', 'tautenburg', 'schmidt', 'plates', 'the', 'accurate', 'positions', 'of', 'the', 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710.1195 | Maximizing phonon thermal conductance for ballistic membranes | At low temperatures, phonon scattering can become so weak that phonon
transport becomes ballistic. We calculate the ballistic phonon conductance G
for membranes using elasticity theory, considering the transition from three to
two dimensions. We discuss the temperature and thickness dependence and
especially concentrate on the issue of material parameters. For all membrane
thicknesses, the best conductors have, counter-intuitively, the lowest speed of
sound.
| cond-mat.mes-hall cond-mat.mtrl-sci | at low temperatures phonon scattering can become so weak that phonon transport becomes ballistic we calculate the ballistic phonon conductance g for membranes using elasticity theory considering the transition from three to two dimensions we discuss the temperature and thickness dependence and especially concentrate on the issue of material parameters for all membrane thicknesses the best conductors have counterintuitively the lowest speed of sound | [['at', 'low', 'temperatures', 'phonon', 'scattering', 'can', 'become', 'so', 'weak', 'that', 'phonon', 'transport', 'becomes', 'ballistic', 'we', 'calculate', 'the', 'ballistic', 'phonon', 'conductance', 'g', 'for', 'membranes', 'using', 'elasticity', 'theory', 'considering', 'the', 'transition', 'from', 'three', 'to', 'two', 'dimensions', 'we', 'discuss', 'the', 'temperature', 'and', 'thickness', 'dependence', 'and', 'especially', 'concentrate', 'on', 'the', 'issue', 'of', 'material', 'parameters', 'for', 'all', 'membrane', 'thicknesses', 'the', 'best', 'conductors', 'have', 'counterintuitively', 'the', 'lowest', 'speed', 'of', 'sound']] | [-0.14202188752096845, 0.23940804923768155, -0.04067148120520869, -0.002926736000517849, -0.03975117734808009, -0.16425104594964068, 0.047070874459677725, 0.4137383943016175, -0.27863730854005553, -0.22649928989994805, 0.033866172132547945, -0.3392010298994137, -0.10881033292389475, 0.2152972125186352, 0.04650170184322633, 0.036657270771684125, -0.026207313749182504, -0.01659093047510396, -0.05310532033399795, -0.16820162656949833, 0.28968811891172663, 0.01372948991775047, 0.3459081173641607, 0.14764564738288755, 0.06596170656848699, -0.00240583324648469, 0.09501452793483622, 0.06260221003321931, -0.19576406600083374, 0.03975675060064532, 0.2638910182104155, -0.12973836882883916, 0.1980040817288682, -0.47794551053084433, -0.2538954100746196, -0.0047520863481622655, 0.1475847034889739, 0.1902211744163651, 0.014598994623156614, -0.14777115249307826, 0.04007525921042543, -0.12335245283611584, -0.11857536785691991, -0.06824675313691841, 0.03864105622051284, -0.034490096193621866, -0.1799120444629807, 0.13753708194417413, -0.005546247979509644, 0.06704738196458493, -0.08272771865449613, -0.17469924844044726, -0.060979036657954566, 0.12346093633095734, 0.08007292854017578, -0.08266415575781139, 0.22296131830808008, -0.1406037859560456, -0.024667810881510377, 0.3761607207998168, -0.0850972197658848, -0.12562612814122076, 0.20320121215991094, -0.19037174046388827, -0.04568408076738706, 0.15727217700623441, 0.1343639923579758, 0.08873191146267345, -0.133412842056714, 0.07307942077977714, 0.04041334317298606, 0.147619423980359, 0.14953454321221216, 0.0906369735384942, 0.21582230595231522, 0.2083415346314723, 0.016211723366723163, 0.11758311575977132, -0.15150343920322484, -0.0011819506835308857, -0.24811832784325816, -0.14901979249407304, -0.19280757728301978, 0.059790607178001665, -0.11521143773234144, -0.1932723691134015, 0.3698294807836646, 0.20493136086588493, 0.1905007988680154, 0.07615244251064723, 0.2677740092804015, 0.17216889090195764, 0.03831287180946674, 0.10553006991540315, 0.3105355546140345, 0.17592431011144072, 0.0974221886790474, -0.3059677299570467, 0.033207057014806196, 0.016040719143347815] |
710.1196 | The volume densities of GMCs in M81 | HI features near young star clusters in M81 are identified as the
photodissociated surfaces of Giant Molecular Clouds (GMCs) from which the young
stars have recently formed. The HI column densities of these features show a
weak trend, from undetectable values inside R = 3.7 kpc and increasing rapidly
to values around 3 x 10^21 cm^-2 near R ~ 7.5 kpc. This trend is similar to
that of the radially-averaged HI distribution in this galaxy, and implies a
constant area covering factor of ~ 0.21 for GMCs throughout M81. The incident
UV fluxes G0 of our sample of candidate PDRs decrease radially.
A simple equilibrium model of the photodissociation-reformation process
connects the observed values of the incident UV flux, the HI column density,
and the relative dust content, permitting an independent estimate to be made of
the total gas density in the GMC. Within the GMC this gas will be predominantly
molecular hydrogen. Volume densities of 1 < n < 200 cm^-3 are derived, with a
geometric mean of 17 cm^-3. These values are similar to the densities of GMCs
in the Galaxy, but somewhat lower than those found earlier for M101 with
similar methods. Low values of molecular density in the GMCs of M81 will result
in low levels of collisional excitation of the CO(1-0) transition, and are
consistent with the very low surface brightness of CO(1-0) emission observed in
the disk of M81.
| astro-ph | hi features near young star clusters in m81 are identified as the photodissociated surfaces of giant molecular clouds gmcs from which the young stars have recently formed the hi column densities of these features show a weak trend from undetectable values inside r 37 kpc and increasing rapidly to values around 3 x 1021 cm2 near r 75 kpc this trend is similar to that of the radiallyaveraged hi distribution in this galaxy and implies a constant area covering factor of 021 for gmcs throughout m81 the incident uv fluxes g0 of our sample of candidate pdrs decrease radially a simple equilibrium model of the photodissociationreformation process connects the observed values of the incident uv flux the hi column density and the relative dust content permitting an independent estimate to be made of the total gas density in the gmc within the gmc this gas will be predominantly molecular hydrogen volume densities of 1 n 200 cm3 are derived with a geometric mean of 17 cm3 these values are similar to the densities of gmcs in the galaxy but somewhat lower than those found earlier for m101 with similar methods low values of molecular density in the gmcs of m81 will result in low levels of collisional excitation of the co10 transition and are consistent with the very low surface brightness of co10 emission observed in the disk of m81 | [['hi', 'features', 'near', 'young', 'star', 'clusters', 'in', 'm81', 'are', 'identified', 'as', 'the', 'photodissociated', 'surfaces', 'of', 'giant', 'molecular', 'clouds', 'gmcs', 'from', 'which', 'the', 'young', 'stars', 'have', 'recently', 'formed', 'the', 'hi', 'column', 'densities', 'of', 'these', 'features', 'show', 'a', 'weak', 'trend', 'from', 'undetectable', 'values', 'inside', 'r', '37', 'kpc', 'and', 'increasing', 'rapidly', 'to', 'values', 'around', '3', 'x', '1021', 'cm2', 'near', 'r', '75', 'kpc', 'this', 'trend', 'is', 'similar', 'to', 'that', 'of', 'the', 'radiallyaveraged', 'hi', 'distribution', 'in', 'this', 'galaxy', 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'm101', 'with', 'similar', 'methods', 'low', 'values', 'of', 'molecular', 'density', 'in', 'the', 'gmcs', 'of', 'm81', 'will', 'result', 'in', 'low', 'levels', 'of', 'collisional', 'excitation', 'of', 'the', 'co10', 'transition', 'and', 'are', 'consistent', 'with', 'the', 'very', 'low', 'surface', 'brightness', 'of', 'co10', 'emission', 'observed', 'in', 'the', 'disk', 'of', 'm81']] | [-0.06520025946726558, 0.11797651525325799, -0.041584121228061516, 0.05817824998604014, 0.016253101586579756, -0.02656497514967331, 0.046590008276746524, 0.4357766384689959, -0.14066567492577772, -0.34912350796636876, 0.010324678687260823, -0.2844600198977509, -0.002093994093491537, 0.13577746055048268, -0.00975857099200961, -0.032664696964743854, -0.005648043739719227, -0.07722088235418219, -0.06969973044449618, -0.2506107569237008, 0.2750428638392531, 0.07755764886557925, 0.1696258044138746, 0.0016595103847082526, 0.04003365258340557, -0.17724379977439103, -0.04556555093945244, -0.023172891735379873, 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710.1197 | The interplay between radio jets and ISM in sub-kpc radio sources | This paper reviews the evidence for interaction between radio jets and their
environment in small and intermediate (sub-kpc) scale radio sources.
Observations of gas (both neutral hydrogen and ionised gas) have shown the
presence of fast (> 1000 km/s) outflows likely originating from this
interaction. The characteristics of these AGN-driven outflows (e.g. mass
outflow rate) indicate that they may have a relevant impact on the evolution of
the host galaxy. We also report on the detection of large HI disks found around
the host galaxies of nearby compact radio sources. Similar structures have so
far not been detected around large radio sources. The presence of these
structures in relation to the evolution of young compact radio sources is
discussed.
| astro-ph | this paper reviews the evidence for interaction between radio jets and their environment in small and intermediate subkpc scale radio sources observations of gas both neutral hydrogen and ionised gas have shown the presence of fast 1000 kms outflows likely originating from this interaction the characteristics of these agndriven outflows eg mass outflow rate indicate that they may have a relevant impact on the evolution of the host galaxy we also report on the detection of large hi disks found around the host galaxies of nearby compact radio sources similar structures have so far not been detected around large radio sources the presence of these structures in relation to the evolution of young compact radio sources is discussed | [['this', 'paper', 'reviews', 'the', 'evidence', 'for', 'interaction', 'between', 'radio', 'jets', 'and', 'their', 'environment', 'in', 'small', 'and', 'intermediate', 'subkpc', 'scale', 'radio', 'sources', 'observations', 'of', 'gas', 'both', 'neutral', 'hydrogen', 'and', 'ionised', 'gas', 'have', 'shown', 'the', 'presence', 'of', 'fast', '1000', 'kms', 'outflows', 'likely', 'originating', 'from', 'this', 'interaction', 'the', 'characteristics', 'of', 'these', 'agndriven', 'outflows', 'eg', 'mass', 'outflow', 'rate', 'indicate', 'that', 'they', 'may', 'have', 'a', 'relevant', 'impact', 'on', 'the', 'evolution', 'of', 'the', 'host', 'galaxy', 'we', 'also', 'report', 'on', 'the', 'detection', 'of', 'large', 'hi', 'disks', 'found', 'around', 'the', 'host', 'galaxies', 'of', 'nearby', 'compact', 'radio', 'sources', 'similar', 'structures', 'have', 'so', 'far', 'not', 'been', 'detected', 'around', 'large', 'radio', 'sources', 'the', 'presence', 'of', 'these', 'structures', 'in', 'relation', 'to', 'the', 'evolution', 'of', 'young', 'compact', 'radio', 'sources', 'is', 'discussed']] | [-0.12884835784828638, 0.12176664944706579, 0.002596444687095739, 0.10741264494017587, -0.09297625799426588, -0.03883285108377557, 0.025358985814510578, 0.4683296392529698, -0.16314651376678277, -0.3326811814775406, 0.0857553127038261, -0.2871061994189049, -0.062356443823141566, 0.18824737126765362, 0.05513285255943567, -0.062091225963401595, 0.051671154370878714, -0.11519697621085886, -0.028120742261338726, -0.1956440248206984, 0.3447018668402807, 0.1212268747326176, 0.19148487542455983, 0.03598035340813004, 0.07686140905607934, -0.1834001400176499, -0.11789851873260686, -0.018148902779981747, -0.08272816892941452, 0.051123894853675265, 0.22836573096090865, 0.11796698222130189, 0.22724457891789657, -0.40029232973682743, -0.23105395635021692, 0.067649347928621, 0.22853920733893066, 0.05054748420587788, -0.11807418845680748, -0.3162705387162455, 0.07963579497300088, -0.21855064138564897, -0.17342235515746524, 0.06855674558398077, 0.06603779509205814, 0.08352465937861193, -0.1421017748800943, 0.14966456407964254, 0.009185558275745834, 0.07440851837637345, -0.09969599892077494, -0.05660867846523553, -0.02698998561255255, 0.10500196541138625, 0.046375869526685674, 0.03251249363677482, 0.23689634336348056, -0.16302069611610623, -0.05101708620905055, 0.41413882033804716, -0.026668575063537238, -0.029788594850796764, 0.3261080436996516, -0.2560680610348739, -0.23013094693848515, 0.18055376625951317, 0.21828136611650933, 0.10342708998162425, -0.13703691364873705, -0.03529783430799321, -0.05531759667841686, 0.18824531619389684, 0.017431171863513478, 0.14535559624864156, 0.3595481666625809, 0.07640106370869898, 0.019033590911160483, 0.10275397012878398, -0.2239791501147704, -0.007453903212543514, -0.21430767181534635, -0.07865363551240603, -0.12758367218795405, 0.11701056451383303, -0.09265946209298988, -0.11876475461635352, 0.3178856585537857, 0.11318937758027213, 0.19802816476380863, -0.0011818138487889604, 0.29945403097544687, 0.05054564732205817, 0.139080338975241, 0.18487615695112716, 0.33118886740826925, 0.15685249246278052, 0.09304555346084348, -0.21857586052560768, 0.10457558189203048, -0.0515008090336223] |
710.1198 | Signature of the interaction between dark energy and dark matter in
galaxy clusters | We investigate the influence of an interaction between dark energy and dark
matter upon the dynamics of galaxy clusters. We obtain the general
Layser-Irvine equation in the presence of interactions, and find how, in that
case, the virial theorem stands corrected. Using optical, X-ray and weak
lensing data from 33 relaxed galaxy clusters, we put constraints on the
strength of the coupling in the dark sector. We find that this coupling is
small but positive, indicating that dark energy can be decaying into dark
matter.
| astro-ph | we investigate the influence of an interaction between dark energy and dark matter upon the dynamics of galaxy clusters we obtain the general layserirvine equation in the presence of interactions and find how in that case the virial theorem stands corrected using optical xray and weak lensing data from 33 relaxed galaxy clusters we put constraints on the strength of the coupling in the dark sector we find that this coupling is small but positive indicating that dark energy can be decaying into dark matter | [['we', 'investigate', 'the', 'influence', 'of', 'an', 'interaction', 'between', 'dark', 'energy', 'and', 'dark', 'matter', 'upon', 'the', 'dynamics', 'of', 'galaxy', 'clusters', 'we', 'obtain', 'the', 'general', 'layserirvine', 'equation', 'in', 'the', 'presence', 'of', 'interactions', 'and', 'find', 'how', 'in', 'that', 'case', 'the', 'virial', 'theorem', 'stands', 'corrected', 'using', 'optical', 'xray', 'and', 'weak', 'lensing', 'data', 'from', '33', 'relaxed', 'galaxy', 'clusters', 'we', 'put', 'constraints', 'on', 'the', 'strength', 'of', 'the', 'coupling', 'in', 'the', 'dark', 'sector', 'we', 'find', 'that', 'this', 'coupling', 'is', 'small', 'but', 'positive', 'indicating', 'that', 'dark', 'energy', 'can', 'be', 'decaying', 'into', 'dark', 'matter']] | [-0.13408099378492416, 0.1151719210585205, -0.13576056828536648, 0.15539551774660745, -0.08837911408461098, -0.08197481133088115, 0.00590776160381557, 0.3261505030649936, -0.23718975065276027, -0.3687802258368936, -0.007666701948480858, -0.2902347367212531, -0.04581349283745069, 0.1460035138408698, 0.08772916118392632, -0.061856754075658195, 0.01661296226527719, -0.0074220286859642895, -0.012925559491296076, -0.2681899852385478, 0.3611617180341411, 0.0322176803879085, 0.2071905753553091, 0.10212059139407106, 0.0798579567913077, 0.010727187302628798, -0.029238113534769843, -0.00196025992876717, -0.18012686048686669, 0.04591641048041527, 0.15262183876101126, 0.07419219266601085, 0.2194975677439721, -0.43004121802126366, -0.18624317088341785, 0.17310462248999448, 0.168645640660543, 0.11212642794652354, -0.11415816622459152, -0.33240989976773216, 0.03485880853120415, -0.1875232621317818, -0.11124365574990709, -0.036574165517647216, -0.023677263564119738, 0.04105635713564143, -0.23015849529543803, 0.1976572701685308, 0.0007145130075514317, -0.06804495499957175, -0.12999085697811097, -0.05899177747640005, -0.030887643717938944, 0.040287778191711934, 0.07471919316698664, -0.007845513557272386, 0.19351563407551675, -0.20777614121713364, 0.0018047558343304054, 0.4206218971826491, -0.14148395754663007, -0.1120891323690081, 0.17536583285601365, -0.14672082912043802, -0.18478140657922873, 0.06064816945720287, 0.17084274664964705, 0.042326381795906594, -0.1322964068967849, 0.1276982197339835, -0.04855280358433014, 0.24527586943336896, 0.03468968271322194, 0.05408863582297705, 0.30511738604954664, 0.13452377296856693, 0.08333161655381056, 0.12038030246843673, -0.1347198613636595, -0.05189309799711087, -0.297170604091315, -0.11651774478100595, -0.15210057748204453, 0.05317243091606846, -0.11411503659664526, -0.09861706556902002, 0.33855834190312417, 0.1302283138169774, 0.1783050386196313, 0.033032128565190805, 0.2863866772413963, 0.11969499268923842, 0.0528160693079588, 0.06377914336155213, 0.39178206492215395, 0.15969656179437325, 0.059232211752151626, -0.2519361450963299, -0.015527272918483331, -0.02687151286573637] |
710.1199 | Commensurate anisotropic oscillator, SU(2) coherent states and the
classical limit | We demonstrate a formally exact quantum-classical correspondence between the
stationary coherent states associated with the commensurate anisotropic
two-dimensional harmonic oscillator and the classical Lissajous orbits. Our
derivation draws upon earlier work of Louck et al [1973 \textit {J. Math.
Phys.} \textbf {14} 692] wherein they have provided a non-bijective canonical
transformation that maps, within a degenerate eigenspace, the commensurate
anisotropic oscillator on to the isotropic oscillator. This mapping leads, in a
natural manner, to a Schwinger realization of SU(2) in terms of the canonically
transformed creation and annihilation operators. Through the corresponding
coherent states built over a degenerate eigenspace, we directly effect the
classical limit via the expectation values of the underlying generators. Our
work completely accounts for the fact that the SU(2) coherent state in general
corresponds to an ensemble of Lissajous orbits.
| quant-ph | we demonstrate a formally exact quantumclassical correspondence between the stationary coherent states associated with the commensurate anisotropic twodimensional harmonic oscillator and the classical lissajous orbits our derivation draws upon earlier work of louck et al 1973 textit j math phys textbf 14 692 wherein they have provided a nonbijective canonical transformation that maps within a degenerate eigenspace the commensurate anisotropic oscillator on to the isotropic oscillator this mapping leads in a natural manner to a schwinger realization of su2 in terms of the canonically transformed creation and annihilation operators through the corresponding coherent states built over a degenerate eigenspace we directly effect the classical limit via the expectation values of the underlying generators our work completely accounts for the fact that the su2 coherent state in general corresponds to an ensemble of lissajous orbits | [['we', 'demonstrate', 'a', 'formally', 'exact', 'quantumclassical', 'correspondence', 'between', 'the', 'stationary', 'coherent', 'states', 'associated', 'with', 'the', 'commensurate', 'anisotropic', 'twodimensional', 'harmonic', 'oscillator', 'and', 'the', 'classical', 'lissajous', 'orbits', 'our', 'derivation', 'draws', 'upon', 'earlier', 'work', 'of', 'louck', 'et', 'al', '1973', 'textit', 'j', 'math', 'phys', 'textbf', '14', '692', 'wherein', 'they', 'have', 'provided', 'a', 'nonbijective', 'canonical', 'transformation', 'that', 'maps', 'within', 'a', 'degenerate', 'eigenspace', 'the', 'commensurate', 'anisotropic', 'oscillator', 'on', 'to', 'the', 'isotropic', 'oscillator', 'this', 'mapping', 'leads', 'in', 'a', 'natural', 'manner', 'to', 'a', 'schwinger', 'realization', 'of', 'su2', 'in', 'terms', 'of', 'the', 'canonically', 'transformed', 'creation', 'and', 'annihilation', 'operators', 'through', 'the', 'corresponding', 'coherent', 'states', 'built', 'over', 'a', 'degenerate', 'eigenspace', 'we', 'directly', 'effect', 'the', 'classical', 'limit', 'via', 'the', 'expectation', 'values', 'of', 'the', 'underlying', 'generators', 'our', 'work', 'completely', 'accounts', 'for', 'the', 'fact', 'that', 'the', 'su2', 'coherent', 'state', 'in', 'general', 'corresponds', 'to', 'an', 'ensemble', 'of', 'lissajous', 'orbits']] | [-0.11471915304751829, 0.1491376569327641, -0.08426077615931854, 0.016981647912713987, -0.057632947632958904, -0.08936790990314089, 0.06120407686278196, 0.326365596992909, -0.23668189060478645, -0.2217682046584673, 0.0062585599226807065, -0.2685242708268246, -0.16704116622861334, 0.18427663875561684, -0.0490723790520368, 0.028402673341513304, 0.0619317715903534, 0.022628582210483073, -0.10478930080158957, -0.21651395760858222, 0.3129333528966636, 0.042940465131200346, 0.30176664449040835, -0.0678604913899969, 0.13475854955508576, 0.05326229344731323, 0.014190573332598433, -0.043384634094886985, -0.13523386431478499, 0.1403192004488249, 0.23045930208960422, 0.0015552390639887268, 0.19456369612590038, -0.37438359593314335, -0.17179329356500753, 0.10755691477762801, 0.11875360458454684, 0.1428293876771822, 0.011332973189252828, -0.3468140565643185, 0.008293579324105705, -0.1922863074683381, -0.14563359547742552, -0.07799722511440348, 0.06127282928787452, -0.01274542645776655, -0.2640315210866861, 0.11453304509290374, 0.12298364271549858, 0.04105574116670996, -0.061308865895830934, -0.07712163020159937, -0.07039989267223816, 0.04889683801106604, -0.04841514343231272, 0.04875003837033252, 0.10418499777044513, -0.05183777936972342, -0.1539920837394333, 0.35199173343108786, -0.0723830376737716, -0.20421644062665117, 0.17431788924640337, -0.10212001532904412, -0.11403642547197808, 0.10946080405125044, 0.10026410438778594, 0.0934751695862278, -0.11366138428001475, 0.15092398254883552, -0.0900768162822701, 0.10637762180627569, 0.09294801539587404, 0.0130730647776675, 0.20187571556202338, 0.04760022149806408, 0.047324397886536064, 0.14922674198781974, -0.024405973295145492, -0.18920332399464765, -0.32605535959950965, -0.15462055225958138, -0.1929170045987668, 0.11298977915386677, -0.027763000766254778, -0.16557412937850713, 0.41342464859660405, 0.10302313145064518, 0.2236658054144871, 0.005745795408361836, 0.21267395138152337, 0.15778681064283656, 0.0009388869831380539, 0.08964342491296855, 0.25893843942146777, 0.20082886047885382, 0.060208967087713346, -0.22078649042860457, -0.06813441962091238, 0.1119308817599501] |
710.12 | Quantum Causal Networks | Intervention theories of causality define a relationship as causal if
appropriately specified interventions to manipulate a putative cause tend to
produce changes in the putative effect. Interventionist causal theories are
commonly formalized by using directed graphs to represent causal relationships,
local probability models to quantify the relationship between cause and effect,
and a special kind of conditioning operator to represent the effects of
interventions. Such a formal model represents a family of joint probability
distributions, one for each allowable intervention policy. This paper
interprets the von Neumann formalization of quantum theory as an
interventionist theory of causality, describes its relationship to
interventionist theories popular in the artificial intelligence literature, and
presents a new family of graphical models that extends causal Bayesian networks
to quantum systems.
| quant-ph | intervention theories of causality define a relationship as causal if appropriately specified interventions to manipulate a putative cause tend to produce changes in the putative effect interventionist causal theories are commonly formalized by using directed graphs to represent causal relationships local probability models to quantify the relationship between cause and effect and a special kind of conditioning operator to represent the effects of interventions such a formal model represents a family of joint probability distributions one for each allowable intervention policy this paper interprets the von neumann formalization of quantum theory as an interventionist theory of causality describes its relationship to interventionist theories popular in the artificial intelligence literature and presents a new family of graphical models that extends causal bayesian networks to quantum systems | [['intervention', 'theories', 'of', 'causality', 'define', 'a', 'relationship', 'as', 'causal', 'if', 'appropriately', 'specified', 'interventions', 'to', 'manipulate', 'a', 'putative', 'cause', 'tend', 'to', 'produce', 'changes', 'in', 'the', 'putative', 'effect', 'interventionist', 'causal', 'theories', 'are', 'commonly', 'formalized', 'by', 'using', 'directed', 'graphs', 'to', 'represent', 'causal', 'relationships', 'local', 'probability', 'models', 'to', 'quantify', 'the', 'relationship', 'between', 'cause', 'and', 'effect', 'and', 'a', 'special', 'kind', 'of', 'conditioning', 'operator', 'to', 'represent', 'the', 'effects', 'of', 'interventions', 'such', 'a', 'formal', 'model', 'represents', 'a', 'family', 'of', 'joint', 'probability', 'distributions', 'one', 'for', 'each', 'allowable', 'intervention', 'policy', 'this', 'paper', 'interprets', 'the', 'von', 'neumann', 'formalization', 'of', 'quantum', 'theory', 'as', 'an', 'interventionist', 'theory', 'of', 'causality', 'describes', 'its', 'relationship', 'to', 'interventionist', 'theories', 'popular', 'in', 'the', 'artificial', 'intelligence', 'literature', 'and', 'presents', 'a', 'new', 'family', 'of', 'graphical', 'models', 'that', 'extends', 'causal', 'bayesian', 'networks', 'to', 'quantum', 'systems']] | [-0.09700674254447222, 0.08260766521759796, -0.10755938260257245, 0.1464271120755002, -0.15945012857019902, -0.1792658124230802, 0.06669068865198642, 0.3208198013585061, -0.2839950421154499, -0.29590797787159684, 0.028248461283743382, -0.26882558258064093, -0.2120033395253122, 0.11569024096988141, -0.1575526749379933, 0.05999915459332988, 0.004404695723205804, 0.07345774091780186, -0.04253172099404037, -0.17650852475874126, 0.3309264651834965, 0.05852224317006767, 0.29067863317765297, 0.006494486145675183, 0.10246796492487192, 0.04033924296870828, -0.026616317683598026, 0.08188192538172007, -0.1309161775711109, 0.13778200336132432, 0.3108697671786067, 0.22771688264608383, 0.3421296728476882, -0.4482216858267784, -0.2756373627334833, 0.14651834378764034, 0.06585148019716143, 0.10795081578241661, 0.0450005955081433, -0.28859795741178096, 0.031473637717776, -0.21358743274211883, -0.11166287503018975, -0.06049321177229285, 0.013279630899429322, -0.04454190404480323, -0.26913959912210705, 0.07333442703075707, 0.06043833423033357, 0.11224516979977489, -0.030780081157572567, -0.03731395637616515, -0.01939170787204057, 0.14800812585651874, 0.03502750787790865, 0.012724355164915322, 0.11838485772907734, -0.10847794372588396, -0.22136117693781854, 0.3298013312993571, 0.005311172381043434, -0.23335986683238297, 0.17291853022947906, -0.06792846953123807, -0.18123107836022972, 0.010854736845009028, 0.20678880371153355, 0.09159861224889755, -0.1798730328939855, 0.05559832282969728, -0.011440555244684219, 0.1375257615596056, 0.04409949806705117, 0.039518520476296545, 0.24834183121379466, 0.13993270342051983, 0.027473427675664425, 0.13176040159910918, -0.022276130594313145, -0.1604887891486287, -0.3100541336014867, -0.14713176228106023, -0.11999423224804923, 0.0304396313149482, -0.10132891175115946, -0.23575328212976457, 0.3468136012852192, 0.199206851022318, 0.1481449081338942, 0.10047698762081564, 0.22589470196329056, 0.08219891354255378, 0.06177650311216712, 0.03887427109852433, 0.18819490376487374, 0.17223318067379295, 0.05787681392021477, -0.17894858860597015, 0.1786867970265448, 0.06984585587680339] |
710.1201 | On the X-Ray Light Curve, Pulsed-Radio Emission, and Spin Frequency
Evolution of the Transient Anomalous X-Ray Pulsar Xte J1810--197 During its
X-Ray Outburst | We show that: (i) the long-term X-ray outburst light curve of the transient
AXP XTE J1810-197 can be accounted for by a fallback disk that is evolving
towards quiescence through a disk instability after having been heated by a
soft gamma-ray burst, (ii) the spin-frequency evolution of this source in the
same period can also be explained by the disk torque acting on the
magnetosphere of the neutron star, (iii) most significantly, recently observed
pulsed-radio emission from this source coincides with the epoch of minimum
X-ray luminosity. This is natural in terms of a fallback disk model, as the
accretion power becomes so low that it is not sufficient to suppress the beamed
radio emission from XTE J1810-197.
| astro-ph | we show that i the longterm xray outburst light curve of the transient axp xte j1810197 can be accounted for by a fallback disk that is evolving towards quiescence through a disk instability after having been heated by a soft gammaray burst ii the spinfrequency evolution of this source in the same period can also be explained by the disk torque acting on the magnetosphere of the neutron star iii most significantly recently observed pulsedradio emission from this source coincides with the epoch of minimum xray luminosity this is natural in terms of a fallback disk model as the accretion power becomes so low that it is not sufficient to suppress the beamed radio emission from xte j1810197 | [['we', 'show', 'that', 'i', 'the', 'longterm', 'xray', 'outburst', 'light', 'curve', 'of', 'the', 'transient', 'axp', 'xte', 'j1810197', 'can', 'be', 'accounted', 'for', 'by', 'a', 'fallback', 'disk', 'that', 'is', 'evolving', 'towards', 'quiescence', 'through', 'a', 'disk', 'instability', 'after', 'having', 'been', 'heated', 'by', 'a', 'soft', 'gammaray', 'burst', 'ii', 'the', 'spinfrequency', 'evolution', 'of', 'this', 'source', 'in', 'the', 'same', 'period', 'can', 'also', 'be', 'explained', 'by', 'the', 'disk', 'torque', 'acting', 'on', 'the', 'magnetosphere', 'of', 'the', 'neutron', 'star', 'iii', 'most', 'significantly', 'recently', 'observed', 'pulsedradio', 'emission', 'from', 'this', 'source', 'coincides', 'with', 'the', 'epoch', 'of', 'minimum', 'xray', 'luminosity', 'this', 'is', 'natural', 'in', 'terms', 'of', 'a', 'fallback', 'disk', 'model', 'as', 'the', 'accretion', 'power', 'becomes', 'so', 'low', 'that', 'it', 'is', 'not', 'sufficient', 'to', 'suppress', 'the', 'beamed', 'radio', 'emission', 'from', 'xte', 'j1810197']] | [-0.07161150040487066, 0.1598643863764711, -0.08345435763128166, 0.11727031064020772, -0.1593025567698587, -0.10713536771109854, 0.03317555476728286, 0.43757359700030685, -0.2374684422637105, -0.2978483644835492, 0.13807578752828267, -0.2870310718814532, -0.05427332708421044, 0.26465315515629184, -0.07007738023655379, -0.031661513176921785, 0.079204806795296, -0.06633690109428687, -0.03920453948637423, -0.2047797297137495, 0.27336956774139315, 0.11111812606358375, 0.13556875127296036, -0.013767941874794217, 0.04343155237376435, -0.07438943151814434, 0.003088436366813098, -0.04643019220322116, -0.06124718252336358, -0.006232886634862576, 0.2089376607352597, 0.1525040093717826, 0.17011290455921593, -0.40069409353165036, -0.29102543996931574, 0.06405306513954559, 0.1658789787131051, -0.012741483270357817, -0.04121811587351541, -0.21887005819007754, 0.0771804364780203, -0.28348679387639475, -0.14726718455855536, 0.1043166039734442, 0.09114007548325592, 0.021913231366401553, -0.19122546332247523, 0.09211101608413558, 0.10847059558304903, 0.015049581336351031, -0.1527599038488558, 0.03468125496600938, -0.06483956722892885, 0.02515941928140819, 0.1022323428088019, 0.11298286246979593, 0.16822602623739305, -0.13453800288530496, -0.09621634556062153, 0.3709134270524622, -0.09517461071029687, 0.04416946661618785, 0.15403270671187907, -0.23991376598580524, -0.15131954720311472, 0.2104136909569144, 0.11452690242296164, 0.10825864148015778, -0.15875357308257848, 0.008951274083348183, -0.041787948817587815, 0.2320025365552905, 0.05337739096651984, 0.031463716509473376, 0.38705828933952713, 0.13833194102049193, -0.009047405808192924, 0.20211957378360706, -0.219715629495346, 0.0085248309884093, -0.24514484668596306, -0.05244749495918807, -0.1718966358810918, 0.1460992983448106, -0.08073664105966942, -0.11732944764961035, 0.3847521675241172, 0.04723725859553386, 0.19543007956260544, 0.011826632434948005, 0.313464813053799, 0.1742293122388685, 0.07755371542116647, 0.19777551708289254, 0.36371687931828517, 0.10960220494387178, 0.13893136401207018, -0.29992882495061457, 0.17268167009863716, 0.010403120420618445] |
710.1202 | N to Delta electromagnetic and axial form factors in full QCD | Lattice results on the N to Delta electromagnetic, axial-vector and
pseudoscalar form factors are evaluated using dynamical staggered sea quarks
and domain wall valence quarks for pion masses in the range of 580-350 MeV, as
well as, dynamical and quenched Wilson fermions for similar pion masses.
| hep-lat hep-ph nucl-ex nucl-th | lattice results on the n to delta electromagnetic axialvector and pseudoscalar form factors are evaluated using dynamical staggered sea quarks and domain wall valence quarks for pion masses in the range of 580350 mev as well as dynamical and quenched wilson fermions for similar pion masses | [['lattice', 'results', 'on', 'the', 'n', 'to', 'delta', 'electromagnetic', 'axialvector', 'and', 'pseudoscalar', 'form', 'factors', 'are', 'evaluated', 'using', 'dynamical', 'staggered', 'sea', 'quarks', 'and', 'domain', 'wall', 'valence', 'quarks', 'for', 'pion', 'masses', 'in', 'the', 'range', 'of', '580350', 'mev', 'as', 'well', 'as', 'dynamical', 'and', 'quenched', 'wilson', 'fermions', 'for', 'similar', 'pion', 'masses']] | [-0.058317251337899105, 0.4280394967955848, -0.00993340709246695, 0.17178726150757737, -0.02533206128217797, -0.07497127135284246, 0.14501920694278347, 0.4255228633681933, -0.07524235032291876, -0.23893515500757428, -0.03669255151568602, -0.32461150874280265, 0.028828036997260317, 0.09245264472232925, 0.1351372018042538, 0.13908080874631804, 0.05525424503462596, 0.012217497535877758, -0.10291989932043685, -0.19339686209956805, 0.3740572663231028, -0.11807472404713432, 0.17680780672364765, 0.2630065892305639, 0.010399245222409566, 0.01436686815900935, 0.02611822406243947, -0.11986157546440761, -0.043933284769041674, -0.01992164341111978, 0.12267854113856123, -0.08262199097726908, 0.05085170313508974, -0.3113320908612675, -0.16629179555198384, 0.01634148603512181, 0.20125541360531415, 0.06113096612195174, 0.016739951286257968, -0.3600565432674355, 0.0897181203795804, -0.2052641633277138, -0.211807322419352, -0.1747750074085262, -0.031876112437910505, -0.021718119829893114, -0.37526178707679114, 0.13009256058269078, -0.11141036198759037, 0.07995931040495634, -0.06452342384598321, -0.36180928866896367, -0.05520415147249069, 0.11090255830850866, 0.1764137625746015, 0.16646777709118193, 0.17190415316985713, -0.21461474150419235, -0.14582514985878434, 0.5147115816672643, -0.12031792763931055, -0.19561387112157214, 0.13366119558405545, -0.17188103552907705, -0.056617942524866925, 0.07652503756803021, 0.24948733802884818, 0.04007629007101059, -0.22346725350038874, 0.07702514162519947, -0.10451232743346028, 0.19911135314291137, 0.16794671992667848, 0.0668088677028815, 0.2666163591047128, 0.18614334323339993, -0.04420259162369702, 0.015163830993697048, -0.005436137727358275, -0.13729589796728559, -0.29433684373895325, -0.06369099356234073, -0.16558554184933502, 0.11277571920719412, -0.15389966046980894, -0.14806813361744087, 0.3710601774509996, 0.05431079765160878, 0.1827354841865599, 0.018289965473943286, 0.24746833501590623, 0.04164823597400553, 0.10297595510880152, 0.11780225843605067, 0.21796203664400512, 0.22807301473286418, 0.18357791599507134, -0.2992649311820666, -0.19554735984032354, 0.14130096582488882] |
710.1203 | Semantic distillation: a method for clustering objects by their
contextual specificity | Techniques for data-mining, latent semantic analysis, contextual search of
databases, etc. have long ago been developed by computer scientists working on
information retrieval (IR). Experimental scientists, from all disciplines,
having to analyse large collections of raw experimental data (astronomical,
physical, biological, etc.) have developed powerful methods for their
statistical analysis and for clustering, categorising, and classifying objects.
Finally, physicists have developed a theory of quantum measurement, unifying
the logical, algebraic, and probabilistic aspects of queries into a single
formalism. The purpose of this paper is twofold: first to show that when
formulated at an abstract level, problems from IR, from statistical data
analysis, and from physical measurement theories are very similar and hence can
profitably be cross-fertilised, and, secondly, to propose a novel method of
fuzzy hierarchical clustering, termed \textit{semantic distillation} --
strongly inspired from the theory of quantum measurement --, we developed to
analyse raw data coming from various types of experiments on DNA arrays. We
illustrate the method by analysing DNA arrays experiments and clustering the
genes of the array according to their specificity.
| math.PR cs.DB math.ST q-bio.QM stat.ML stat.TH | techniques for datamining latent semantic analysis contextual search of databases etc have long ago been developed by computer scientists working on information retrieval ir experimental scientists from all disciplines having to analyse large collections of raw experimental data astronomical physical biological etc have developed powerful methods for their statistical analysis and for clustering categorising and classifying objects finally physicists have developed a theory of quantum measurement unifying the logical algebraic and probabilistic aspects of queries into a single formalism the purpose of this paper is twofold first to show that when formulated at an abstract level problems from ir from statistical data analysis and from physical measurement theories are very similar and hence can profitably be crossfertilised and secondly to propose a novel method of fuzzy hierarchical clustering termed textitsemantic distillation strongly inspired from the theory of quantum measurement we developed to analyse raw data coming from various types of experiments on dna arrays we illustrate the method by analysing dna arrays experiments and clustering the genes of the array according to their specificity | [['techniques', 'for', 'datamining', 'latent', 'semantic', 'analysis', 'contextual', 'search', 'of', 'databases', 'etc', 'have', 'long', 'ago', 'been', 'developed', 'by', 'computer', 'scientists', 'working', 'on', 'information', 'retrieval', 'ir', 'experimental', 'scientists', 'from', 'all', 'disciplines', 'having', 'to', 'analyse', 'large', 'collections', 'of', 'raw', 'experimental', 'data', 'astronomical', 'physical', 'biological', 'etc', 'have', 'developed', 'powerful', 'methods', 'for', 'their', 'statistical', 'analysis', 'and', 'for', 'clustering', 'categorising', 'and', 'classifying', 'objects', 'finally', 'physicists', 'have', 'developed', 'a', 'theory', 'of', 'quantum', 'measurement', 'unifying', 'the', 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710.1204 | Ion trap quantum gates with amplitude-modulated laser beams | In ion traps, entangling gate operations can be realized by a bichromatic
pair of laser beams that collectively interact with the ions. In this paper, a
new method of modelling the laser-ion interaction is introduced that turns out
to be superior to standard techniques for the description of gate operations on
optical qubits. The treatment allows for a comparison of the performance of
gates based on $\sigma_z\otimes\sigma_z$ and M{\o}lmer-S{\o}rensen interactions
on optical transitions where the bichromatic laser field can be realized by an
amplitude-modulated laser resonant with the qubit transition. Shaping the
amplitude of the bichromatic laser pulse is shown to make the gates more robust
against experimental imperfections.
| quant-ph | in ion traps entangling gate operations can be realized by a bichromatic pair of laser beams that collectively interact with the ions in this paper a new method of modelling the laserion interaction is introduced that turns out to be superior to standard techniques for the description of gate operations on optical qubits the treatment allows for a comparison of the performance of gates based on sigma_zotimessigma_z and molmersorensen interactions on optical transitions where the bichromatic laser field can be realized by an amplitudemodulated laser resonant with the qubit transition shaping the amplitude of the bichromatic laser pulse is shown to make the gates more robust against experimental imperfections | [['in', 'ion', 'traps', 'entangling', 'gate', 'operations', 'can', 'be', 'realized', 'by', 'a', 'bichromatic', 'pair', 'of', 'laser', 'beams', 'that', 'collectively', 'interact', 'with', 'the', 'ions', 'in', 'this', 'paper', 'a', 'new', 'method', 'of', 'modelling', 'the', 'laserion', 'interaction', 'is', 'introduced', 'that', 'turns', 'out', 'to', 'be', 'superior', 'to', 'standard', 'techniques', 'for', 'the', 'description', 'of', 'gate', 'operations', 'on', 'optical', 'qubits', 'the', 'treatment', 'allows', 'for', 'a', 'comparison', 'of', 'the', 'performance', 'of', 'gates', 'based', 'on', 'sigma_zotimessigma_z', 'and', 'molmersorensen', 'interactions', 'on', 'optical', 'transitions', 'where', 'the', 'bichromatic', 'laser', 'field', 'can', 'be', 'realized', 'by', 'an', 'amplitudemodulated', 'laser', 'resonant', 'with', 'the', 'qubit', 'transition', 'shaping', 'the', 'amplitude', 'of', 'the', 'bichromatic', 'laser', 'pulse', 'is', 'shown', 'to', 'make', 'the', 'gates', 'more', 'robust', 'against', 'experimental', 'imperfections']] | [-0.14159312726152257, 0.2208977386393048, -0.052491383437481665, -0.01937942488712831, 0.03953868613168256, -0.23512970171270703, 0.07277033569979045, 0.47677389474226795, -0.21510754877257102, -0.27502095965730505, 0.004866741950102492, -0.23793920555481488, -0.08985324858457124, 0.2892226102428699, -0.04216592929778843, 0.06404502989741367, 0.07140133059968096, -0.051457545019412805, -0.024515312793023818, -0.22884109398401384, 0.23271112460984822, 0.07258168681377306, 0.29394499089466325, 0.03306522383995422, 0.09074333087122495, 0.026925210251981274, 0.06381036176286432, -0.04062595649904341, -0.046207725605099684, 0.09962412737173225, 0.22187173438478483, 0.03809558749284356, 0.22243091271797177, -0.4928408489314788, -0.2127770159923292, 0.05428445200572525, 0.12778949781551685, 0.18825941759486334, -0.05956366557989445, -0.3243583380201951, -0.021657018267566663, -0.14575793563362655, -0.07576685728197662, -0.11137854218175379, 0.003579353854923142, 0.07638637296035203, -0.3297337359714604, -0.06923908169259566, 0.059528414954093854, 0.05150865245644653, 0.005111123156977322, 0.013882801432265054, 0.006197919359926237, 0.02490319814874765, -0.07088297141134875, 0.07320591299837335, 0.19167589538072774, -0.10187756377614078, -0.16791171134116317, 0.3743897655331572, -0.07193754797955172, -0.1414794347018277, 0.14676125760301265, -0.10007542284598592, -0.019727775476736212, 0.12504040064512317, 0.13945103499295036, 0.09889182195477529, -0.13169457744756274, 0.03912101360919048, 0.024913841474015232, 0.2334355919814731, 0.12109578968188085, 0.07798035439411434, 0.21292814563900028, 0.16646019375344756, 0.08638978655046331, 0.19626350347457322, -0.09271978786206642, -0.07043483311635092, -0.2768570969069223, -0.09971863953524841, -0.19617862017278415, 0.03720672876753528, -0.021259749239741037, -0.13289727799999185, 0.43697557737623605, 0.15522804417233024, 0.11412991029893928, -0.07370481321613791, 0.35436599272508346, 0.14407267154476375, 0.09688394789267844, -0.019213685201942374, 0.2790531797319599, 0.17606095640296374, 0.010380512594732397, -0.29428814810277776, 0.022816167751310068, 0.014982831164545149] |
710.1205 | Full Scale Dynamic Response of a RC Building under Weak Seismic Motions
Using Earthquake Recordings, Ambient Vibrations and Modelling | In countries with a moderate seismic hazard, the classical methods developed
for strong motion prone countries to estimate the seismic behaviour and
subsequent vulnerability of existing buildings are often inadequate and not
financially realistic. The main goals of this paper are to show how the modal
analysis can contribute to the understanding of the seismic building response
and the good relevancy of a modal model based on ambient vibrations for
estimating the structural deformation under moderate earthquakes. We describe
the application of an enhanced modal analysis technique (Frequency Domain
Decomposition) to process ambient vibration recordings taken at the Grenoble
City Hall building (France). The frequencies of ambient vibrations are compared
with those of weak earthquakes recorded by the French permanent accelerometric
network (RAP) that was installed to monitor the building. The frequency
variations of the building under moderate earthquakes are shown to be slight
(~2%) and therefore ambient vibration frequencies are relevant over the elastic
domain of the building. The modal parameters extracted from ambient vibrations
are then used to determine the 1D lumped-mass model in order to reproduce the
inter-storey drift under weak earthquakes and to fix a 3D numerical model that
could be used for strong earthquakes. The correlation coefficients between data
and synthetic motion are close to 80% and 90% in horizontal directions, for the
1D and 3D modelling, respectively.
| physics.geo-ph physics.class-ph | in countries with a moderate seismic hazard the classical methods developed for strong motion prone countries to estimate the seismic behaviour and subsequent vulnerability of existing buildings are often inadequate and not financially realistic the main goals of this paper are to show how the modal analysis can contribute to the understanding of the seismic building response and the good relevancy of a modal model based on ambient vibrations for estimating the structural deformation under moderate earthquakes we describe the application of an enhanced modal analysis technique frequency domain decomposition to process ambient vibration recordings taken at the grenoble city hall building france the frequencies of ambient vibrations are compared with those of weak earthquakes recorded by the french permanent accelerometric network rap that was installed to monitor the building the frequency variations of the building under moderate earthquakes are shown to be slight 2 and therefore ambient vibration frequencies are relevant over the elastic domain of the building the modal parameters extracted from ambient vibrations are then used to determine the 1d lumpedmass model in order to reproduce the interstorey drift under weak earthquakes and to fix a 3d numerical model that could be used for strong earthquakes the correlation coefficients between data and synthetic motion are close to 80 and 90 in horizontal directions for the 1d and 3d modelling respectively | [['in', 'countries', 'with', 'a', 'moderate', 'seismic', 'hazard', 'the', 'classical', 'methods', 'developed', 'for', 'strong', 'motion', 'prone', 'countries', 'to', 'estimate', 'the', 'seismic', 'behaviour', 'and', 'subsequent', 'vulnerability', 'of', 'existing', 'buildings', 'are', 'often', 'inadequate', 'and', 'not', 'financially', 'realistic', 'the', 'main', 'goals', 'of', 'this', 'paper', 'are', 'to', 'show', 'how', 'the', 'modal', 'analysis', 'can', 'contribute', 'to', 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710.1206 | Study of DiMuon Rare Beauty Decays with ATLAS and CMS | The LHC experiments will perform sensitive tests of physics beyond the
Standard Model (BSM). The investigation of decays of beauty hadrons represents
an alternative approach in addition to direct BSM searches. The ATLAS and CMS
efforts concentrate on those B-decays that can be efficiently selected already
at the first and second level trigger. The most favorable trigger signature
will be for $B$-hadron decays with muons in the final state. Using this
trigger, ATLAS and CMS will be able to accommodate unprecedentedly high
statistics in the rare decay sector. These are purely dimuon decays, and
families of semimuonic exclusive channels. Already with data corresponding to
an integrated luminosity of \ensuremath{1 fb^{-1}}, the sensitivity in the
dimuon channels will be comparable to present measurements (world average). The
strategy is to carry on the dimuon channel program up to nominal LHC
luminosity. In particular the \ensuremath{B_s \to \mu\mu} signal with
\ensuremath{\sim}5 sigma significance can be measured combining low luminosity
\ensuremath{10^{33}cm^{-2} s^{-1}} samples with those of one year of LHC
operation at a luminosity of \ensuremath{10^{34}cm^{-2} s^{-1}
| hep-ex | the lhc experiments will perform sensitive tests of physics beyond the standard model bsm the investigation of decays of beauty hadrons represents an alternative approach in addition to direct bsm searches the atlas and cms efforts concentrate on those bdecays that can be efficiently selected already at the first and second level trigger the most favorable trigger signature will be for bhadron decays with muons in the final state using this trigger atlas and cms will be able to accommodate unprecedentedly high statistics in the rare decay sector these are purely dimuon decays and families of semimuonic exclusive channels already with data corresponding to an integrated luminosity of ensuremath1 fb1 the sensitivity in the dimuon channels will be comparable to present measurements world average the strategy is to carry on the dimuon channel program up to nominal lhc luminosity in particular the ensuremathb_s to mumu signal with ensuremathsim5 sigma significance can be measured combining low luminosity ensuremath1033cm2 s1 samples with those of one year of lhc operation at a luminosity of ensuremath1034cm2 s1 | [['the', 'lhc', 'experiments', 'will', 'perform', 'sensitive', 'tests', 'of', 'physics', 'beyond', 'the', 'standard', 'model', 'bsm', 'the', 'investigation', 'of', 'decays', 'of', 'beauty', 'hadrons', 'represents', 'an', 'alternative', 'approach', 'in', 'addition', 'to', 'direct', 'bsm', 'searches', 'the', 'atlas', 'and', 'cms', 'efforts', 'concentrate', 'on', 'those', 'bdecays', 'that', 'can', 'be', 'efficiently', 'selected', 'already', 'at', 'the', 'first', 'and', 'second', 'level', 'trigger', 'the', 'most', 'favorable', 'trigger', 'signature', 'will', 'be', 'for', 'bhadron', 'decays', 'with', 'muons', 'in', 'the', 'final', 'state', 'using', 'this', 'trigger', 'atlas', 'and', 'cms', 'will', 'be', 'able', 'to', 'accommodate', 'unprecedentedly', 'high', 'statistics', 'in', 'the', 'rare', 'decay', 'sector', 'these', 'are', 'purely', 'dimuon', 'decays', 'and', 'families', 'of', 'semimuonic', 'exclusive', 'channels', 'already', 'with', 'data', 'corresponding', 'to', 'an', 'integrated', 'luminosity', 'of', 'ensuremath1', 'fb1', 'the', 'sensitivity', 'in', 'the', 'dimuon', 'channels', 'will', 'be', 'comparable', 'to', 'present', 'measurements', 'world', 'average', 'the', 'strategy', 'is', 'to', 'carry', 'on', 'the', 'dimuon', 'channel', 'program', 'up', 'to', 'nominal', 'lhc', 'luminosity', 'in', 'particular', 'the', 'ensuremathb_s', 'to', 'mumu', 'signal', 'with', 'ensuremathsim5', 'sigma', 'significance', 'can', 'be', 'measured', 'combining', 'low', 'luminosity', 'ensuremath1033cm2', 's1', 'samples', 'with', 'those', 'of', 'one', 'year', 'of', 'lhc', 'operation', 'at', 'a', 'luminosity', 'of', 'ensuremath1034cm2', 's1']] | [-0.016451858851637337, 0.19017574574796267, -0.10206060036684253, 0.13236807822527008, -0.0711826864266879, -0.14733512635021248, 0.016268031948129646, 0.3420204169482791, -0.19489674482818892, -0.33069736866413485, 0.08455946098893903, -0.3726638489059128, 0.07243101706817037, 0.18828246575209223, 0.038391038498264696, 0.10369932289038497, 0.1479076386610922, -0.003364912031905814, -0.07266516579000468, -0.26353333520403666, 0.19818474572024397, 0.1273769058752805, 0.2108122476714752, 0.048169615340330416, 0.015173821731531504, -0.021943755095846774, -0.06895385430557542, -0.05252223322098698, -0.10667565236737919, 0.05965307920650091, 0.2984734418887889, 0.15114286416749, 0.13293666432478599, -0.37012329356124, -0.05913020335442741, 0.16993161671520543, 0.15930794531734482, 0.050789278133639267, -0.04773141235151949, -0.3552684356192393, 0.15081004876022538, -0.21937307757824392, -0.09042216815508991, -0.0412006693139639, -0.015452361438379046, -0.07239600045916934, -0.30208463623421267, 0.08223241978252883, -0.07896004970479269, 0.05528297046631841, 0.010431664298743098, -0.18031356929125086, -0.03628817612549201, 0.037949915684293956, 0.08710598262543845, 0.07571939820194357, 0.2071331568350572, -0.1567512806879157, -0.21803203877615965, 0.3043410455547495, -0.04456110661946392, -0.14612949216583124, 0.22225093916980163, -0.23301750855171122, -0.14564437839934335, 0.18025082255397656, 0.2840353494643101, 0.023108359866975143, -0.2383466736701805, 0.07851127401798814, 0.008428631450182624, 0.19549383866390035, 0.02535368059346053, 0.11444793178816326, 0.22470442495319903, 0.25310905055777677, 0.04177874769638514, 0.07619954709246356, -0.149546211082322, -0.017749078447065716, -0.4270065324380994, -0.1146578139288024, -0.08502513361496053, 0.04603795972763605, 0.01014471113791972, -0.03484449148111578, 0.3840608568141414, 0.13070913282821753, 0.2834809179351266, 0.009537075784811307, 0.2967597440528196, 0.09212212249778011, 0.10188803281163841, 0.027684217659823065, 0.3420047662137741, 0.11021645530681348, 0.15276507724636412, -0.19846751317371464, 0.04885295401930177, 0.002581887031694697] |
710.1207 | Binaries and the dynamical mass of star clusters | The total mass of a distant star cluster is often derived from the virial
theorem, using line-of-sight velocity dispersion measurements and half-light
radii, under the implicit assumption that all stars are single (although it is
known that most stars form part of binary systems). The components of binary
stars exhibit orbital motion, which increases the measured velocity dispersion,
resulting in a dynamical mass overestimation. In this article we quantify the
effect of neglecting the binary population on the derivation of the dynamical
mass of a star cluster. We find that the presence of binaries plays an
important role for clusters with total mass M < 10^5 Msun; the dynamical mass
can be significantly overestimated (by a factor of two or more). For the more
massive clusters, with Mcl > 10^5 Msun, binaries do not affect the dynamical
mass estimation significantly, provided that the cluster is significantly
compact (half-mass radius < 5 pc).
| astro-ph | the total mass of a distant star cluster is often derived from the virial theorem using lineofsight velocity dispersion measurements and halflight radii under the implicit assumption that all stars are single although it is known that most stars form part of binary systems the components of binary stars exhibit orbital motion which increases the measured velocity dispersion resulting in a dynamical mass overestimation in this article we quantify the effect of neglecting the binary population on the derivation of the dynamical mass of a star cluster we find that the presence of binaries plays an important role for clusters with total mass m 105 msun the dynamical mass can be significantly overestimated by a factor of two or more for the more massive clusters with mcl 105 msun binaries do not affect the dynamical mass estimation significantly provided that the cluster is significantly compact halfmass radius 5 pc | [['the', 'total', 'mass', 'of', 'a', 'distant', 'star', 'cluster', 'is', 'often', 'derived', 'from', 'the', 'virial', 'theorem', 'using', 'lineofsight', 'velocity', 'dispersion', 'measurements', 'and', 'halflight', 'radii', 'under', 'the', 'implicit', 'assumption', 'that', 'all', 'stars', 'are', 'single', 'although', 'it', 'is', 'known', 'that', 'most', 'stars', 'form', 'part', 'of', 'binary', 'systems', 'the', 'components', 'of', 'binary', 'stars', 'exhibit', 'orbital', 'motion', 'which', 'increases', 'the', 'measured', 'velocity', 'dispersion', 'resulting', 'in', 'a', 'dynamical', 'mass', 'overestimation', 'in', 'this', 'article', 'we', 'quantify', 'the', 'effect', 'of', 'neglecting', 'the', 'binary', 'population', 'on', 'the', 'derivation', 'of', 'the', 'dynamical', 'mass', 'of', 'a', 'star', 'cluster', 'we', 'find', 'that', 'the', 'presence', 'of', 'binaries', 'plays', 'an', 'important', 'role', 'for', 'clusters', 'with', 'total', 'mass', 'm', '105', 'msun', 'the', 'dynamical', 'mass', 'can', 'be', 'significantly', 'overestimated', 'by', 'a', 'factor', 'of', 'two', 'or', 'more', 'for', 'the', 'more', 'massive', 'clusters', 'with', 'mcl', '105', 'msun', 'binaries', 'do', 'not', 'affect', 'the', 'dynamical', 'mass', 'estimation', 'significantly', 'provided', 'that', 'the', 'cluster', 'is', 'significantly', 'compact', 'halfmass', 'radius', '5', 'pc']] | [-0.13573122261585854, 0.1471704385289649, -0.06529161371384441, 0.08565097187501972, -0.06940913734795064, -0.02264043874101051, 0.043844179405780795, 0.35066037641325654, -0.15506293800668852, -0.3781661340629294, 0.040760569885410616, -0.26834591356849913, -0.055776170084577976, 0.2211642799861479, -0.03219707910871546, -0.03185886798048355, 0.12374040556309007, 0.030635840228239963, -0.11398092189791219, -0.2694276685329567, 0.36033037507394017, 0.03496866898873709, 0.13264261203311734, -0.017485866062546263, 0.06336898758269896, -0.02187077728906434, -0.02833769222933974, 0.01732053745212971, -0.14442793729081407, 0.0382711896899425, 0.16410036213639748, 0.11499212853823032, 0.24219786492020093, -0.3062533867239152, -0.20605580274315688, 0.07534273944235713, 0.21494787966757511, 0.05489412401318425, -0.0771277048892651, -0.233633951783249, 0.10129582888177978, -0.24281267718030702, -0.19099843453603402, 0.05236858418273846, 0.0724411377427012, 0.01883456147519634, -0.22620590616817643, 0.22340155722051483, 0.06717326406673872, 0.02450962949719205, -0.10211037176711198, -0.13958714427989002, -0.08021139141622206, 0.09449526393979837, 0.02544805356582639, 0.06626797494659788, 0.2245852512357469, -0.09975648037745499, 0.02166866382033933, 0.4317539734578373, -0.04804287710533346, -0.11157094393763066, 0.20303175056934505, -0.18357597772444553, -0.16975644852551194, 0.12575999623314546, 0.18989584143679814, 0.12795855058669645, -0.1985918936138385, -0.02306045742194487, -0.022633056899363912, 0.27937568548047953, 0.06087708898551212, 0.07092517494667797, 0.32196287658290573, 0.11450599904145557, 0.03926035461765862, 0.0360305366628247, -0.1884825544309921, -0.08683573094902923, -0.17962194796676603, -0.10042138520671967, -0.1333037959747704, 0.0771668116022378, -0.1895260010132427, -0.12850043945164488, 0.2737009710829155, 0.1162763439578273, 0.21029328411732545, 0.07600974710892586, 0.2794890509322192, 0.14198331820900434, 0.1455194194076095, 0.13576454816436107, 0.32220538615580374, 0.21663473783554696, 0.019042816272492977, -0.27660978647517726, 0.06519755696715325, 0.010445532410861862] |
710.1208 | Diagrammatic Inference | Diagrammatic logics were introduced in 2002, with emphasis on the notions of
specifications and models. In this paper we improve the description of the
inference process, which is seen as a Yoneda functor on a bicategory of
fractions. A diagrammatic logic is defined from a morphism of limit sketches
(called a propagator) which gives rise to an adjunction, which in turn
determines a bicategory of fractions. The propagator, the adjunction and the
bicategory provide respectively the syntax, the models and the inference
process for the logic. Then diagrammatic logics and their morphisms are applied
to the semantics of side effects in computer languages.
| cs.LO math.CT | diagrammatic logics were introduced in 2002 with emphasis on the notions of specifications and models in this paper we improve the description of the inference process which is seen as a yoneda functor on a bicategory of fractions a diagrammatic logic is defined from a morphism of limit sketches called a propagator which gives rise to an adjunction which in turn determines a bicategory of fractions the propagator the adjunction and the bicategory provide respectively the syntax the models and the inference process for the logic then diagrammatic logics and their morphisms are applied to the semantics of side effects in computer languages | [['diagrammatic', 'logics', 'were', 'introduced', 'in', '2002', 'with', 'emphasis', 'on', 'the', 'notions', 'of', 'specifications', 'and', 'models', 'in', 'this', 'paper', 'we', 'improve', 'the', 'description', 'of', 'the', 'inference', 'process', 'which', 'is', 'seen', 'as', 'a', 'yoneda', 'functor', 'on', 'a', 'bicategory', 'of', 'fractions', 'a', 'diagrammatic', 'logic', 'is', 'defined', 'from', 'a', 'morphism', 'of', 'limit', 'sketches', 'called', 'a', 'propagator', 'which', 'gives', 'rise', 'to', 'an', 'adjunction', 'which', 'in', 'turn', 'determines', 'a', 'bicategory', 'of', 'fractions', 'the', 'propagator', 'the', 'adjunction', 'and', 'the', 'bicategory', 'provide', 'respectively', 'the', 'syntax', 'the', 'models', 'and', 'the', 'inference', 'process', 'for', 'the', 'logic', 'then', 'diagrammatic', 'logics', 'and', 'their', 'morphisms', 'are', 'applied', 'to', 'the', 'semantics', 'of', 'side', 'effects', 'in', 'computer', 'languages']] | [-0.0991433195733619, 0.04343687740815193, -0.1408776239790384, 0.13229602221100736, -0.1252728111282425, -0.1029814585989106, 0.058713588819531634, 0.3703152241131056, -0.34140226540372715, -0.23785367181289543, 0.031886147529573985, -0.2136240506943686, -0.09853064542799031, 0.16158909113734093, -0.17848490433116415, -0.03710420538662273, 0.06000402075175232, 0.05726995897164017, -0.07888302247681954, -0.20034566029761602, 0.3417582823668869, -0.0010528695064334615, 0.24269786883977432, 0.05363839524752886, 0.12018408578395554, 0.011297990124925826, -0.02021620583548708, 0.013824558211038413, -0.12745700510743174, 0.13909821266543518, 0.33665981147873714, 0.16807570102290043, 0.2192419472069127, -0.4040530336640992, -0.06163676914948862, 0.05992350442497765, 0.09897459566918682, 0.08655945061665318, 0.02417221632831305, -0.3643934773733315, 0.015579590420193464, -0.24646372473753483, 0.003868525174166103, -0.08802201342995017, 0.0519825005090063, 0.0009251771928760612, -0.2578338113324084, -0.06716470354354208, 0.1752070852157488, 0.1321996106829458, -0.030694756516734662, -0.06632605985313364, -0.05260751106170485, 0.08601805375147502, -0.04545781185038984, 0.043493385973739106, 0.14294713007207638, -0.15015774222714737, -0.18327156376563808, 0.3751195024120287, -0.041121710589137474, -0.20238689341564273, 0.1521133254417806, -0.09595722009798566, -0.15244879687060287, 0.11038251103634394, 0.08489170938151554, 0.12915626946764375, -0.13829287183606653, 0.17544781561100006, -0.05633541336735186, 0.13196436174720236, 0.10300047636411867, 0.055187117525385423, 0.192303106487159, 0.1765284735112659, -0.026101624846313762, 0.19927627707207665, 0.021764413241152334, -0.12104625799195859, -0.32920089466678143, -0.1738617481953166, -0.012905240221654327, 0.01806572665125855, -0.07121149985316363, -0.22174122892500994, 0.383588216583995, 0.18845067016816544, 0.1858917935073231, 0.19214153250349342, 0.2897131278211233, 0.12257397452465968, 0.089997770606079, -0.03043627747768554, 0.13660274946935547, 0.2545674690203651, 0.10085599752848298, -0.09347087925399464, 0.08217441916321087, 0.17727552054594586] |
710.1209 | Crustal structure below Popocat\'epetl Volcano (Mexico) from analysis of
Rayleigh waves | An array of ten broadband stations was installed on the Popocat\'epetl
volcano (Mexico) for five months between October 2002 and February 2003. 26
regional and teleseismic earthquakes were selected and filtered in the
frequency time domain to extract the fundamental mode of the Rayleigh wave. The
average dispersion curve was obtained in two steps. Firstly, phase velocities
were measured in the period range [2-50] s from the phase difference between
pairs of stations, using Wiener filtering. Secondly, the average dispersion
curve was calculated by combining observations from all events in order to
reduce diffraction effects. The inversion of the mean phase velocity yielded a
crustal model for the volcano which is consistent with previous models of the
Mexican Volcanic Belt. The overall crustal structure beneath Popocat\'epetl is
therefore not different from the surrounding area, and the velocities in the
lower crust are confirmed to be relatively low. Lateral variations of the
structure were also investigated by dividing the network into four parts and by
applying the same procedure to each sub-array. No well-defined anomalies
appeared for the two sub-arrays for which it was possible to measure a
dispersion curve. However, dispersion curves associated with individual events
reveal important diffraction for 6 s to 12 s periods which could correspond to
strong lateral variations at 5 to 10 km depth.
| physics.geo-ph | an array of ten broadband stations was installed on the popocatepetl volcano mexico for five months between october 2002 and february 2003 26 regional and teleseismic earthquakes were selected and filtered in the frequency time domain to extract the fundamental mode of the rayleigh wave the average dispersion curve was obtained in two steps firstly phase velocities were measured in the period range 250 s from the phase difference between pairs of stations using wiener filtering secondly the average dispersion curve was calculated by combining observations from all events in order to reduce diffraction effects the inversion of the mean phase velocity yielded a crustal model for the volcano which is consistent with previous models of the mexican volcanic belt the overall crustal structure beneath popocatepetl is therefore not different from the surrounding area and the velocities in the lower crust are confirmed to be relatively low lateral variations of the structure were also investigated by dividing the network into four parts and by applying the same procedure to each subarray no welldefined anomalies appeared for the two subarrays for which it was possible to measure a dispersion curve however dispersion curves associated with individual events reveal important diffraction for 6 s to 12 s periods which could correspond to strong lateral variations at 5 to 10 km depth | [['an', 'array', 'of', 'ten', 'broadband', 'stations', 'was', 'installed', 'on', 'the', 'popocatepetl', 'volcano', 'mexico', 'for', 'five', 'months', 'between', 'october', '2002', 'and', 'february', '2003', '26', 'regional', 'and', 'teleseismic', 'earthquakes', 'were', 'selected', 'and', 'filtered', 'in', 'the', 'frequency', 'time', 'domain', 'to', 'extract', 'the', 'fundamental', 'mode', 'of', 'the', 'rayleigh', 'wave', 'the', 'average', 'dispersion', 'curve', 'was', 'obtained', 'in', 'two', 'steps', 'firstly', 'phase', 'velocities', 'were', 'measured', 'in', 'the', 'period', 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710.121 | Dynamic parameters of structures extracted from ambient vibration
measurements: an aid for the seismic vulnerability assessment of existing
buildings in moderate seismic hazard regions | During the past two decades, the use of ambient vibrations for modal analysis
of structures has increased as compared to the traditional techniques (forced
vibrations). The Frequency Domain Decomposition method is nowadays widely used
in modal analysis because of its accuracy and simplicity. In this paper, we
first present the physical meaning of the FDD method to estimate the modal
parameters. We discuss then the process used for the evaluation of the building
stiffness deduced from the modal shapes. The models considered here are 1D
lumped-mass beams and especially the shear beam. The analytical solution of the
equations of motion makes it possible to simulate the motion due to a weak to
moderate earthquake and then the inter-storey drift knowing only the modal
parameters (modal model). This process is finally applied to a 9-storey
reinforced concrete (RC) dwelling in Grenoble (France). We successfully
compared the building motion for an artificial ground motion deduced from the
model estimated using ambient vibrations and recorded in the building. The
stiffness of each storey and the inter-storey drift were also calculated.
| physics.geo-ph physics.class-ph | during the past two decades the use of ambient vibrations for modal analysis of structures has increased as compared to the traditional techniques forced vibrations the frequency domain decomposition method is nowadays widely used in modal analysis because of its accuracy and simplicity in this paper we first present the physical meaning of the fdd method to estimate the modal parameters we discuss then the process used for the evaluation of the building stiffness deduced from the modal shapes the models considered here are 1d lumpedmass beams and especially the shear beam the analytical solution of the equations of motion makes it possible to simulate the motion due to a weak to moderate earthquake and then the interstorey drift knowing only the modal parameters modal model this process is finally applied to a 9storey reinforced concrete rc dwelling in grenoble france we successfully compared the building motion for an artificial ground motion deduced from the model estimated using ambient vibrations and recorded in the building the stiffness of each storey and the interstorey drift were also calculated | [['during', 'the', 'past', 'two', 'decades', 'the', 'use', 'of', 'ambient', 'vibrations', 'for', 'modal', 'analysis', 'of', 'structures', 'has', 'increased', 'as', 'compared', 'to', 'the', 'traditional', 'techniques', 'forced', 'vibrations', 'the', 'frequency', 'domain', 'decomposition', 'method', 'is', 'nowadays', 'widely', 'used', 'in', 'modal', 'analysis', 'because', 'of', 'its', 'accuracy', 'and', 'simplicity', 'in', 'this', 'paper', 'we', 'first', 'present', 'the', 'physical', 'meaning', 'of', 'the', 'fdd', 'method', 'to', 'estimate', 'the', 'modal', 'parameters', 'we', 'discuss', 'then', 'the', 'process', 'used', 'for', 'the', 'evaluation', 'of', 'the', 'building', 'stiffness', 'deduced', 'from', 'the', 'modal', 'shapes', 'the', 'models', 'considered', 'here', 'are', '1d', 'lumpedmass', 'beams', 'and', 'especially', 'the', 'shear', 'beam', 'the', 'analytical', 'solution', 'of', 'the', 'equations', 'of', 'motion', 'makes', 'it', 'possible', 'to', 'simulate', 'the', 'motion', 'due', 'to', 'a', 'weak', 'to', 'moderate', 'earthquake', 'and', 'then', 'the', 'interstorey', 'drift', 'knowing', 'only', 'the', 'modal', 'parameters', 'modal', 'model', 'this', 'process', 'is', 'finally', 'applied', 'to', 'a', '9storey', 'reinforced', 'concrete', 'rc', 'dwelling', 'in', 'grenoble', 'france', 'we', 'successfully', 'compared', 'the', 'building', 'motion', 'for', 'an', 'artificial', 'ground', 'motion', 'deduced', 'from', 'the', 'model', 'estimated', 'using', 'ambient', 'vibrations', 'and', 'recorded', 'in', 'the', 'building', 'the', 'stiffness', 'of', 'each', 'storey', 'and', 'the', 'interstorey', 'drift', 'were', 'also', 'calculated']] | [-0.04929677922810827, 0.07723227241284414, -0.09326595121196338, 0.03226950080077846, -0.0829398435447365, -0.0861883125906544, 0.020921900851785073, 0.37705953674657006, -0.28862256490758487, -0.2676737551337906, 0.13960622260746147, -0.23342732265059438, -0.13081062248907982, 0.21057868930644222, -0.053976233350113034, 0.09047761307862986, 0.05497732845201556, 0.03866141084049429, -0.03723261307309648, -0.1720685156142073, 0.24695921910128424, 0.0780917479310717, 0.32247354467931605, 0.002477081612284694, 0.1289091070634978, 0.014159191349255187, -0.042598657965926184, 0.011894768104622406, -0.14114519997499883, 0.12706364368753773, 0.2265065161986318, 0.08802909829587277, 0.24883279177759374, -0.445157252486263, -0.21912018363680025, 0.06495134376122483, 0.12599167529360525, 0.1394970732395138, 0.015908768665976823, -0.28117134764790536, 0.048575830762939795, -0.18205449460872583, -0.14541820268828554, -0.05502225724181958, 0.037184691300083485, 0.03660485057326566, -0.24099067373999528, 0.05903865107584612, 0.07551347208608473, 0.07193929698318242, -0.10322949729926352, -0.1347512184921652, -0.019656663831057294, 0.13553075633144804, 0.06255784358795999, -0.025755956630621638, 0.1456562104688159, -0.09765022467555744, -0.07393898419503654, 0.4072837110928127, -0.060056315587633954, -0.20478148667274843, 0.20243820597018514, -0.12097331486110176, -0.07927897311747074, 0.11255814203460301, 0.18093060124732022, 0.08982186262628862, -0.1593643556555201, 0.03048717034814347, 0.04003131637615817, 0.17379012008197606, 0.10002830137897815, -0.0258233923890761, 0.154214006960392, 0.20392546678228038, -0.007044784908315965, 0.1589248499540346, -0.13352459713816642, -0.06657513823925651, -0.2642059964260885, -0.12628637590844716, -0.1647385375201702, -0.030978862055178198, -0.06239597124937323, -0.1494702264400465, 0.39091212444007395, 0.1981301617675594, 0.1676519096369988, 0.018520835536931242, 0.3316810416217361, 0.12488790859268713, 0.06757812358172877, 0.02052926186139562, 0.2849502766218835, 0.16794141692508543, 0.12913161305976764, -0.22606025039151842, 0.06868822132902486, 0.03553722048976592] |
710.1211 | D0-D0 Mixing at BaBar | The BaBar and Belle collaborations have recently found evidence for mixing
within the D meson system. We present some of the mixing search techniques used
by BaBar and their status as of the beginning of the summer 2007. These have
culminated in a measurement in the K decay final state of the D that is
inconsistent with the no-mixing hypothesis with a significance of 3.9 standard
deviations.
| hep-ex | the babar and belle collaborations have recently found evidence for mixing within the d meson system we present some of the mixing search techniques used by babar and their status as of the beginning of the summer 2007 these have culminated in a measurement in the k decay final state of the d that is inconsistent with the nomixing hypothesis with a significance of 39 standard deviations | [['the', 'babar', 'and', 'belle', 'collaborations', 'have', 'recently', 'found', 'evidence', 'for', 'mixing', 'within', 'the', 'd', 'meson', 'system', 'we', 'present', 'some', 'of', 'the', 'mixing', 'search', 'techniques', 'used', 'by', 'babar', 'and', 'their', 'status', 'as', 'of', 'the', 'beginning', 'of', 'the', 'summer', '2007', 'these', 'have', 'culminated', 'in', 'a', 'measurement', 'in', 'the', 'k', 'decay', 'final', 'state', 'of', 'the', 'd', 'that', 'is', 'inconsistent', 'with', 'the', 'nomixing', 'hypothesis', 'with', 'a', 'significance', 'of', '39', 'standard', 'deviations']] | [-0.07449023065560345, 0.178937250595373, -0.12492581301215869, 0.050811290068538, -0.02193771701639713, -0.1224300101496724, 0.10212817756500818, 0.27834201657557306, -0.14740606411290702, -0.3154508193482214, 0.08193993498049955, -0.33139689408465106, -0.05790760516842355, 0.14712871790085155, 0.03181002290099303, 0.1349036479785816, 0.13919090382309993, 0.03149099850943729, -0.07437928801110542, -0.2407458749280047, 0.26592650901137005, 0.08336246981104808, 0.22134643805616383, 0.03870477023492776, -0.0012467571937326174, -0.026676254301790648, -0.08976436193698822, -0.028173646681121926, -0.11653556755742618, 0.08871084786673535, 0.19469755929686242, 0.20503651870609219, 0.20554143853429982, -0.35575760130895606, -0.10341307287340734, 0.1271643526574124, 0.09752873608272579, 0.060571878328363395, -0.07310862779450505, -0.37939309331574544, 0.09741345741577558, -0.1970679749136985, -0.10809179328020606, -0.023826113276517215, 0.062198804594131546, -0.05332708382395221, -0.2594615821796122, 0.10245157133634966, -0.0006734939160020049, 0.11541583106866968, -0.028963840788980916, -0.25633305559150266, -0.0013555158833180791, 0.0534830465009297, 0.0675725860264041, 0.06512050931828457, 0.08865150379072596, -0.10492299430405916, -0.21079455763657592, 0.32987485169919567, -0.08759280190969915, -0.09349566563936089, 0.19764434415569057, -0.22693643267891966, -0.15412150871064237, 0.13005692989968543, 0.17796360366324435, 0.012432586154969992, -0.18579194015030986, 0.11889565637884245, -0.06827910767117543, 0.13527009891929911, 0.0857076524763799, 0.028016296955548338, 0.18050052881685655, 0.19558041179969685, -0.02418765759985171, 0.04508815148372704, -0.1171824251815899, -0.05944548089251812, -0.3804387247829295, -0.13020707272104362, -0.10101718375626118, 0.044099488087109666, -0.002037437736498081, -0.06796432314301605, 0.3796356870417497, 0.09823127243834645, 0.2890969676368717, 0.016759811052635534, 0.2126196149403035, 0.05735449332903737, 0.059340708350429115, 0.07161015093173664, 0.3648116297975579, 0.1519196831669881, 0.17092815539174117, -0.22574339771413926, 0.10822399422776566, -0.0038686954388533956] |
710.1212 | The nature of the light scalar mesons from their radiative decays | The nature of the light scalar mesons is one of the most intriguing open
challenges in hadronic spectroscopy. It is argued that radiative decays
involving these scalars can serve as an important decisive tool in establishing
their nature. In particular, special emphasis is made on the radiative decays
of the scalars themselves (in addition to the radiative decays of the phi-meson
with the scalars appearing in the final state), including their two-photon
decays. All the above mentioned processes are considered in detail in the
(point-like) kaon molecule model of the scalars and explicit predictions for
the decay widths are made. In addition, finite-range corrections to the
point-like results are investigated, with a special attention payed to gauge
invariance of the decay amplitude. Finally, the conclusion is made that
experimental data on the radiative decays with the light scalar mesons involved
strongly support the molecule assignment for the latter.
| hep-ph | the nature of the light scalar mesons is one of the most intriguing open challenges in hadronic spectroscopy it is argued that radiative decays involving these scalars can serve as an important decisive tool in establishing their nature in particular special emphasis is made on the radiative decays of the scalars themselves in addition to the radiative decays of the phimeson with the scalars appearing in the final state including their twophoton decays all the above mentioned processes are considered in detail in the pointlike kaon molecule model of the scalars and explicit predictions for the decay widths are made in addition finiterange corrections to the pointlike results are investigated with a special attention payed to gauge invariance of the decay amplitude finally the conclusion is made that experimental data on the radiative decays with the light scalar mesons involved strongly support the molecule assignment for the latter | [['the', 'nature', 'of', 'the', 'light', 'scalar', 'mesons', 'is', 'one', 'of', 'the', 'most', 'intriguing', 'open', 'challenges', 'in', 'hadronic', 'spectroscopy', 'it', 'is', 'argued', 'that', 'radiative', 'decays', 'involving', 'these', 'scalars', 'can', 'serve', 'as', 'an', 'important', 'decisive', 'tool', 'in', 'establishing', 'their', 'nature', 'in', 'particular', 'special', 'emphasis', 'is', 'made', 'on', 'the', 'radiative', 'decays', 'of', 'the', 'scalars', 'themselves', 'in', 'addition', 'to', 'the', 'radiative', 'decays', 'of', 'the', 'phimeson', 'with', 'the', 'scalars', 'appearing', 'in', 'the', 'final', 'state', 'including', 'their', 'twophoton', 'decays', 'all', 'the', 'above', 'mentioned', 'processes', 'are', 'considered', 'in', 'detail', 'in', 'the', 'pointlike', 'kaon', 'molecule', 'model', 'of', 'the', 'scalars', 'and', 'explicit', 'predictions', 'for', 'the', 'decay', 'widths', 'are', 'made', 'in', 'addition', 'finiterange', 'corrections', 'to', 'the', 'pointlike', 'results', 'are', 'investigated', 'with', 'a', 'special', 'attention', 'payed', 'to', 'gauge', 'invariance', 'of', 'the', 'decay', 'amplitude', 'finally', 'the', 'conclusion', 'is', 'made', 'that', 'experimental', 'data', 'on', 'the', 'radiative', 'decays', 'with', 'the', 'light', 'scalar', 'mesons', 'involved', 'strongly', 'support', 'the', 'molecule', 'assignment', 'for', 'the', 'latter']] | [-0.08072897244985781, 0.21196135395999788, -0.03728199609228083, 0.14524791409683138, -0.06543153678039498, -0.16479681521918424, 0.008882084103911562, 0.3524724466197595, -0.18755899674677592, -0.23217901859331774, 0.032335912909459426, -0.3224824131812548, -0.05335954939506042, 0.16179124906350784, 0.0767437635678672, 0.10295672406130973, 0.07232476843873391, 0.04933432577731642, -0.012858137132826488, -0.2168674256559776, 0.3411804462934064, 0.043989988767567115, 0.19926779831419825, 0.13807651672726245, -0.023487137113792217, -0.005949295915638072, -0.05786149546730559, -0.0913176122750785, -0.09670967080937526, 0.08207357749720481, 0.1890713797529807, 0.07433814528190556, 0.1751495244341739, -0.40395238652205523, -0.17224605653963582, 0.12072501692769898, 0.18141708757753508, 0.13144962275180513, -0.07238824901818393, -0.3274122408679309, 0.04311761116243999, -0.1105730065279892, -0.13247396772793443, -0.08331237419986644, 0.011068923378794303, -0.03942657191608403, -0.2843014614285297, 0.05050349232073672, -0.004340604402288492, -0.0007141877808985678, -0.04240518628078437, -0.18465418485465232, -0.028001227334292757, 0.09203750724161698, 0.17794884939920283, 0.02760334052554508, 0.14609203609084156, -0.18710144683152335, -0.11724858173024463, 0.42759243641803796, -0.06779272314294782, -0.2167411100534672, 0.1683101772041236, -0.14551884540029475, -0.1608244732456483, 0.14476767242366978, 0.16421665225454882, 0.08233573736081756, -0.1559392088202986, 0.10852208535613278, -0.02789245792617392, 0.13096710489638075, 0.03841489982929685, 0.12032155392886568, 0.20289144412979382, 0.16047163972335338, -0.07609765095686591, 0.12822176973064858, -0.046618054856898614, -0.11937079320321917, -0.39042363025097027, -0.16372220256567202, -0.10075873584640715, 0.058798626343707076, -0.038472521930482284, -0.11918320835605767, 0.3845359320340149, 0.0866965884625962, 0.2093753170983463, -0.02214272622321103, 0.2898793483052302, 0.09222669731684004, 0.06889298651446085, 0.043823639277016394, 0.3547390068289698, 0.20417040632408415, 0.12661023912447933, -0.2659577724218645, 0.022935536620836403, 0.021901988090846588] |
710.1213 | Exploiting soliton decay and phase fluctuations in atom chip
interferometry of Bose-Einstein condensates | We show that the decay of a soliton into vortices provides a mechanism for
measuring the initial phase difference between two merging Bose-Einstein
condensates. At very low temperatures, the mechanism is resonant, operating
only when the clouds start in anti-phase. But at higher temperatures, phase
fluctuations trigger vortex production over a wide range of initial relative
phase, as observed in recent experiments at MIT. Choosing the merge time to
maximize the number of vortices created makes the interferometer highly
sensitive to spatially varying phase patterns and hence atomic movement.
| cond-mat.other | we show that the decay of a soliton into vortices provides a mechanism for measuring the initial phase difference between two merging boseeinstein condensates at very low temperatures the mechanism is resonant operating only when the clouds start in antiphase but at higher temperatures phase fluctuations trigger vortex production over a wide range of initial relative phase as observed in recent experiments at mit choosing the merge time to maximize the number of vortices created makes the interferometer highly sensitive to spatially varying phase patterns and hence atomic movement | [['we', 'show', 'that', 'the', 'decay', 'of', 'a', 'soliton', 'into', 'vortices', 'provides', 'a', 'mechanism', 'for', 'measuring', 'the', 'initial', 'phase', 'difference', 'between', 'two', 'merging', 'boseeinstein', 'condensates', 'at', 'very', 'low', 'temperatures', 'the', 'mechanism', 'is', 'resonant', 'operating', 'only', 'when', 'the', 'clouds', 'start', 'in', 'antiphase', 'but', 'at', 'higher', 'temperatures', 'phase', 'fluctuations', 'trigger', 'vortex', 'production', 'over', 'a', 'wide', 'range', 'of', 'initial', 'relative', 'phase', 'as', 'observed', 'in', 'recent', 'experiments', 'at', 'mit', 'choosing', 'the', 'merge', 'time', 'to', 'maximize', 'the', 'number', 'of', 'vortices', 'created', 'makes', 'the', 'interferometer', 'highly', 'sensitive', 'to', 'spatially', 'varying', 'phase', 'patterns', 'and', 'hence', 'atomic', 'movement']] | [-0.18806171611349068, 0.27997576098972826, -0.08978440156834347, 0.05540842485085674, -0.011978873870534342, -0.12974220942810513, 0.075190933695942, 0.38502393081114533, -0.24821533370773527, -0.3129734351310167, 0.04769937859931856, -0.25172991662422256, -0.031221295099998457, 0.17830314529599267, 0.04119045584556762, -0.015206710927272112, 0.031173818135173635, -0.00955505175332884, -0.06615268076858954, -0.20174337464144057, 0.3219519074001674, 0.04907826123382436, 0.3276260302616597, 0.05920749098543873, 0.10366372691906905, -0.0562312645010985, 0.02351683897575824, -0.020068322800183565, -0.10147910866288931, -0.027913532319238012, 0.2509017772344726, 0.011670177488514547, 0.22740931040869, -0.44398258805400537, -0.18664752684659167, 0.11735764761151893, 0.1751101128966286, 0.16505315969959738, -0.07171706315339281, -0.28637762650261434, 0.04718652895254114, -0.13350264716558577, -0.12512758737325333, -0.05576128979851858, 0.05354112238633666, 0.03338755818680347, -0.2650797470378574, 0.07055449643266502, -0.007679546939511914, 0.04031359834669765, -0.07309723593650407, -0.04502479655647211, -0.04893371253274381, 0.07225393763059237, -0.009794006043040518, 0.05683258326666618, 0.15989138608212383, -0.15776015240489766, -0.03341981871158219, 0.37052466801571754, -0.08705134296873479, -0.08230794243922646, 0.2201277096808124, -0.19385637168176054, -0.04834592612355613, 0.19976960891711243, 0.16260108593432757, 0.09688556006732868, -0.0793334433184008, -0.0658958314612555, 0.03967514855975515, 0.18955115543081938, 0.1366250173193978, 0.08913717483264509, 0.3178596375667061, 0.21544101731485446, 0.0420273875064227, 0.1530290696602524, -0.129414005447717, -0.1541857553039039, -0.257271864205557, -0.08082385399912516, -0.1636032634571697, -0.04071269399130696, -0.06679728578006341, -0.14466243586241362, 0.3739228680143865, 0.14259165771347418, 0.25038673080146845, -0.02601595038516719, 0.29087075939548485, 0.08171009244475765, 0.05445145464010453, 0.029575468747342907, 0.25671248943178676, 0.09027474472401245, 0.1827303109405395, -0.2680314480211963, 0.045545609915116275, 0.008118446623341422] |
710.1214 | Shot-noise of quantum chaotic systems in the classical limit | Semiclassical methods can now explain many mesoscopic effects (shot-noise,
conductance fluctuations, etc) in clean chaotic systems, such as chaotic
quantum dots. In the deep classical limit (wavelength much less than system
size) the Ehrenfest time (the time for a wavepacket to spread to a classical
size) plays a crucial role, and random matrix theory (RMT) ceases to apply to
the transport properties of open chaotic systems.
Here we summarize some of our recent results for shot-noise (intrinsically
quantum noise in the current through the system) in this deep classical limit.
For systems with perfect coupling to the leads, we use a phase-space basis on
the leads to show that the transmission eigenvalues are all 0 or 1 -- so
transmission is noiseless [Whitney-Jacquod, Phys. Rev. Lett. 94, 116801 (2005),
Jacquod-Whitney, Phys. Rev. B 73, 195115 (2006)]. For systems with
tunnel-barriers on the leads we use trajectory-based semiclassics to extract
universal (but non-RMT) shot-noise results for the classical regime [Whitney,
Phys. Rev. B 75, 235404 (2007)].
| cond-mat.mes-hall nlin.CD | semiclassical methods can now explain many mesoscopic effects shotnoise conductance fluctuations etc in clean chaotic systems such as chaotic quantum dots in the deep classical limit wavelength much less than system size the ehrenfest time the time for a wavepacket to spread to a classical size plays a crucial role and random matrix theory rmt ceases to apply to the transport properties of open chaotic systems here we summarize some of our recent results for shotnoise intrinsically quantum noise in the current through the system in this deep classical limit for systems with perfect coupling to the leads we use a phasespace basis on the leads to show that the transmission eigenvalues are all 0 or 1 so transmission is noiseless whitneyjacquod phys rev lett 94 116801 2005 jacquodwhitney phys rev b 73 195115 2006 for systems with tunnelbarriers on the leads we use trajectorybased semiclassics to extract universal but nonrmt shotnoise results for the classical regime whitney phys rev b 75 235404 2007 | [['semiclassical', 'methods', 'can', 'now', 'explain', 'many', 'mesoscopic', 'effects', 'shotnoise', 'conductance', 'fluctuations', 'etc', 'in', 'clean', 'chaotic', 'systems', 'such', 'as', 'chaotic', 'quantum', 'dots', 'in', 'the', 'deep', 'classical', 'limit', 'wavelength', 'much', 'less', 'than', 'system', 'size', 'the', 'ehrenfest', 'time', 'the', 'time', 'for', 'a', 'wavepacket', 'to', 'spread', 'to', 'a', 'classical', 'size', 'plays', 'a', 'crucial', 'role', 'and', 'random', 'matrix', 'theory', 'rmt', 'ceases', 'to', 'apply', 'to', 'the', 'transport', 'properties', 'of', 'open', 'chaotic', 'systems', 'here', 'we', 'summarize', 'some', 'of', 'our', 'recent', 'results', 'for', 'shotnoise', 'intrinsically', 'quantum', 'noise', 'in', 'the', 'current', 'through', 'the', 'system', 'in', 'this', 'deep', 'classical', 'limit', 'for', 'systems', 'with', 'perfect', 'coupling', 'to', 'the', 'leads', 'we', 'use', 'a', 'phasespace', 'basis', 'on', 'the', 'leads', 'to', 'show', 'that', 'the', 'transmission', 'eigenvalues', 'are', 'all', '0', 'or', '1', 'so', 'transmission', 'is', 'noiseless', 'whitneyjacquod', 'phys', 'rev', 'lett', '94', '116801', '2005', 'jacquodwhitney', 'phys', 'rev', 'b', '73', '195115', '2006', 'for', 'systems', 'with', 'tunnelbarriers', 'on', 'the', 'leads', 'we', 'use', 'trajectorybased', 'semiclassics', 'to', 'extract', 'universal', 'but', 'nonrmt', 'shotnoise', 'results', 'for', 'the', 'classical', 'regime', 'whitney', 'phys', 'rev', 'b', '75', '235404', '2007']] | [-0.11499096896304879, 0.11802441716382775, -0.06488628617393537, 0.00660510657390556, -0.017510860899015317, -0.14013838048588154, 0.08107291877452473, 0.3129630306488068, -0.22298866362219583, -0.2678538996260613, 0.009342083711872656, -0.27493083052914824, -0.18512335724839823, 0.24454346841534222, -0.1311146615801049, 0.08531852872287736, 0.04695081677659167, -0.013132219730369463, -0.039249784685229244, -0.2542948821689226, 0.20087453256703064, 0.09379238620381272, 0.2838422601845092, 0.028065358627516822, 0.05007185379840445, 0.049899178126803306, 0.02216611493248463, -0.010427583374460286, -0.1683526262540103, 0.025762172635420685, 0.23195331915918313, 0.04480842945955788, 0.2664214280504686, -0.425140336533136, -0.25015454500165024, 0.1011355423480508, 0.13176842393424315, 0.17147462373404893, 0.04291344685936818, -0.30494620354810753, 0.054486010696656435, -0.1671525933396637, -0.13313083385435653, -0.1351721755102206, 0.10008900232695608, -0.0058098388688426605, -0.2722251799732706, 0.17526209479952348, 0.07251581911858218, 0.03434682058765777, 0.057989700315697, -0.07289699239131724, 0.04679922299913449, 0.07177777760337944, -0.06603196699060264, 0.032497729638243635, 0.14860453704207005, -0.07958190621295354, -0.13646927352440602, 0.3474452494513951, -0.05631599557791215, -0.16110653717872464, 0.24088407604795986, -0.16203753752162373, -0.11305866317375551, 0.10991592677251165, 0.14974913203682091, 0.10397886149541039, -0.14991536024586546, 0.1292363028362529, -0.05462769026089978, 0.17257023565957463, 0.07361939350287489, 0.10471365025821083, 0.18234959696242703, 0.1401188855878773, 0.0009700819961225638, 0.0738591388150861, -0.11430689737295048, -0.18004716277605842, -0.268084177063613, -0.14894610420576757, -0.18215579771557586, 0.14926008411529887, -0.009719336676448908, -0.16306511716492758, 0.3671334615460585, 0.22571817118986923, 0.22306071500341065, 0.03309703738534752, 0.2518759247039362, 0.13533472566558874, -0.012508450800264137, 0.12694869158919192, 0.2591373961121566, 0.20100240312115866, 0.13059920109395834, -0.2212850108913653, -0.028591739257673814, 0.02887377713635988] |
710.1215 | Measuring the spin up of the Accreting Millisecond Pulsar XTE J1751-305 | We perform a timing analysis on RXTE data of the accreting millisecond pulsar
XTE J1751-305 observed during the April 2002 outburst. After having corrected
for Doppler effects on the pulse phases due to the orbital motion of the
source, we performed a timing analysis on the phase delays, which gives, for
the first time for this source, an estimate of the average spin frequency
derivative <nu_dot> = (3.7 +/- 1.0)E-13 Hz/s. We discuss the torque resulting
from the spin-up of the neutron star deriving a dynamical estimate of the mass
accretion rate and comparing it with the one obtained from X-ray flux.
Constraints on the distance to the source are discussed, leading to a lower
limit of \sim 6.7 kpc.
| astro-ph | we perform a timing analysis on rxte data of the accreting millisecond pulsar xte j1751305 observed during the april 2002 outburst after having corrected for doppler effects on the pulse phases due to the orbital motion of the source we performed a timing analysis on the phase delays which gives for the first time for this source an estimate of the average spin frequency derivative nu_dot 37 10e13 hzs we discuss the torque resulting from the spinup of the neutron star deriving a dynamical estimate of the mass accretion rate and comparing it with the one obtained from xray flux constraints on the distance to the source are discussed leading to a lower limit of sim 67 kpc | [['we', 'perform', 'a', 'timing', 'analysis', 'on', 'rxte', 'data', 'of', 'the', 'accreting', 'millisecond', 'pulsar', 'xte', 'j1751305', 'observed', 'during', 'the', 'april', '2002', 'outburst', 'after', 'having', 'corrected', 'for', 'doppler', 'effects', 'on', 'the', 'pulse', 'phases', 'due', 'to', 'the', 'orbital', 'motion', 'of', 'the', 'source', 'we', 'performed', 'a', 'timing', 'analysis', 'on', 'the', 'phase', 'delays', 'which', 'gives', 'for', 'the', 'first', 'time', 'for', 'this', 'source', 'an', 'estimate', 'of', 'the', 'average', 'spin', 'frequency', 'derivative', 'nu_dot', '37', '10e13', 'hzs', 'we', 'discuss', 'the', 'torque', 'resulting', 'from', 'the', 'spinup', 'of', 'the', 'neutron', 'star', 'deriving', 'a', 'dynamical', 'estimate', 'of', 'the', 'mass', 'accretion', 'rate', 'and', 'comparing', 'it', 'with', 'the', 'one', 'obtained', 'from', 'xray', 'flux', 'constraints', 'on', 'the', 'distance', 'to', 'the', 'source', 'are', 'discussed', 'leading', 'to', 'a', 'lower', 'limit', 'of', 'sim', '67', 'kpc']] | [-0.12662729572788892, 0.11274190209680178, -0.08129057032746752, 0.07952549859735389, -0.0896841631018383, -0.04737666878805859, 0.1133148263472969, 0.3633820956288758, -0.1976067995774891, -0.35832305058394953, 0.1568894777525911, -0.30992852605413646, 0.0015475394952079375, 0.2873526722571607, -0.029910630574134196, 0.00948629602079548, 0.08555444693429616, 0.011144869439935281, -0.11342959869179432, -0.21023154240957426, 0.241542987649771, 0.08822037697911768, 0.15878677113234238, -0.003891240067432745, 0.13601743998657123, -0.017248591155571452, -0.05675614298266059, -0.09365709711623899, -0.15065599020602086, 0.040331413969397545, 0.17832343450794785, 0.08458672904298972, 0.1651457170008729, -0.3956051857005489, -0.20210956376375458, 0.03721435479740849, 0.0859059529572378, 0.03904879486515834, -0.020117356830623823, -0.30646541327143373, 0.021922847327097494, -0.2414273058095852, -0.12965518980034454, 0.04084694923900099, 0.08610979745448646, 0.030782082169395635, -0.20944705313580678, 0.1470155053598396, 0.053554803557976115, 0.016642390183070517, -0.16301223207896542, -0.06856341721880707, -0.0155782899266835, 0.08706733552439107, 0.10769688894072453, 0.08476785806765369, 0.12229628762688045, -0.06897846327786791, -0.09160158257552628, 0.3320355985818778, -0.07977092815701202, -0.018102934008357666, 0.14361097773347617, -0.20766205932381188, -0.15656262784170272, 0.1690737210237785, 0.17454180568732888, 0.11513627861316664, -0.1604994154462228, -0.021747171643517627, 0.03776213304550087, 0.27072031893846343, 0.08208295324485812, 0.042363721674102975, 0.30556952181051217, 0.15497324604618015, 0.025751932796438115, 0.15332733348832797, -0.2915297634031434, -0.04269093672263483, -0.23278200160317375, -0.03821425513616937, -0.15236527022069035, 0.10531601190993214, -0.12826263776699662, -0.10243480613107904, 0.41062813918343033, 0.12669291833249885, 0.18030168203700145, 0.0530203690947728, 0.29729010816663504, 0.18132004028154633, 0.01712600100130411, 0.12033203534852965, 0.33340034785412126, 0.16691350699915408, 0.13334035273676864, -0.30332209826920625, 0.07600804541449425, 0.033160426661814166] |
710.1216 | Spin resonance of 2D electrons in a large-area silicon MOSFET | We report electron spin resonance (ESR) measurements on a large-area silicon
MOSFET. An ESR signal at g-factor 1.9999(1), and with a linewidth of 0.6 G, is
observed and found to arise from two-dimensional (2D) electrons at the Si/SiO2
interface. The signal and its intensity show a pronounced dependence on applied
gate voltage. At gate voltages below the threshold of the MOSFET, the signal is
from weakly confined, isolated electrons as evidenced by the Curie-like
temperature dependence of its intensity. The situation above threshold appears
more complicated. These large-area MOSFETs provide the capability to
controllably tune from insulating to conducting regimes by adjusting the gate
voltage while monitoring the state of the 2D electron spins spectroscopically.
| cond-mat.mtrl-sci cond-mat.other | we report electron spin resonance esr measurements on a largearea silicon mosfet an esr signal at gfactor 199991 and with a linewidth of 06 g is observed and found to arise from twodimensional 2d electrons at the sisio2 interface the signal and its intensity show a pronounced dependence on applied gate voltage at gate voltages below the threshold of the mosfet the signal is from weakly confined isolated electrons as evidenced by the curielike temperature dependence of its intensity the situation above threshold appears more complicated these largearea mosfets provide the capability to controllably tune from insulating to conducting regimes by adjusting the gate voltage while monitoring the state of the 2d electron spins spectroscopically | [['we', 'report', 'electron', 'spin', 'resonance', 'esr', 'measurements', 'on', 'a', 'largearea', 'silicon', 'mosfet', 'an', 'esr', 'signal', 'at', 'gfactor', '199991', 'and', 'with', 'a', 'linewidth', 'of', '06', 'g', 'is', 'observed', 'and', 'found', 'to', 'arise', 'from', 'twodimensional', '2d', 'electrons', 'at', 'the', 'sisio2', 'interface', 'the', 'signal', 'and', 'its', 'intensity', 'show', 'a', 'pronounced', 'dependence', 'on', 'applied', 'gate', 'voltage', 'at', 'gate', 'voltages', 'below', 'the', 'threshold', 'of', 'the', 'mosfet', 'the', 'signal', 'is', 'from', 'weakly', 'confined', 'isolated', 'electrons', 'as', 'evidenced', 'by', 'the', 'curielike', 'temperature', 'dependence', 'of', 'its', 'intensity', 'the', 'situation', 'above', 'threshold', 'appears', 'more', 'complicated', 'these', 'largearea', 'mosfets', 'provide', 'the', 'capability', 'to', 'controllably', 'tune', 'from', 'insulating', 'to', 'conducting', 'regimes', 'by', 'adjusting', 'the', 'gate', 'voltage', 'while', 'monitoring', 'the', 'state', 'of', 'the', '2d', 'electron', 'spins', 'spectroscopically']] | [-0.11247204620239995, 0.18050730774669782, 0.00705815225496496, -0.017841053144238367, 0.00751486393672071, -0.23092898262844405, 0.09591731283683003, 0.434834087300196, -0.2454004751644996, -0.3479924793110082, -0.0068315110177520596, -0.33044213025520247, -0.049818320412254126, 0.27318119055085016, 0.04741498045296522, 0.030920594937797113, -0.0077855326970549, -0.035231161431415546, -0.0884690867050698, -0.1501216070416073, 0.2270161938370285, 0.08410095922616229, 0.3458069231434676, 0.11021788686252477, 0.09000096501978605, -0.011050831796111245, 0.12944145030096957, 0.0026588464776674905, -0.12209807632474654, -0.015802935084426088, 0.2814957986406067, -0.12186971859875739, 0.18901625286027984, -0.4346792253485897, -0.16152500166770137, -0.0348533104304551, 0.12106955154715188, 0.13533542465148984, -0.09513827691657832, -0.3118484031844051, 0.04480651386997156, -0.10283559535654556, -0.09897735836025197, -0.0034786916861010374, -0.024640714978439768, -0.011005952170531248, -0.2501622946736844, 0.10161564732787379, 0.057252910300648135, 0.08143142309333933, -0.02945950055666464, -0.11361409650233231, -0.082367571787153, 0.04677341577419276, -0.017974364746917496, 0.060184473637491465, 0.3084931293739365, -0.10531945650214575, -0.09083885815517422, 0.27691627988028095, -0.06702166082942042, -0.06983069815619833, 0.15641267600534647, -0.2692097146390823, 0.01828208283455879, 0.19474528127823743, 0.12499004197225236, 0.07917429974073903, -0.14395848509300044, 0.05875624037243573, 0.043289419092041884, 0.22379982013055205, 0.0721970781471515, 0.0580600429032194, 0.2712696572773877, 0.204613427047438, 0.0953454746897414, 0.1770837345372951, -0.2081341666063261, 0.059269527122460045, -0.20117930737895923, -0.09167449876437322, -0.21352481071657517, 0.11029667978117798, -0.03729766615415748, -0.16060900009286247, 0.47865194471945105, 0.14687686134129763, 0.19033337588699764, -0.037230127423658575, 0.30725259691264417, 0.167583020042481, 0.09420875211148277, 0.0013258465985193637, 0.24984902554404056, 0.21267328772023975, 0.1347979209324541, -0.3042219237428518, 0.0766091711835511, -0.07616273575184639] |
710.1217 | Exploring the QCD phase diagram | Lattice simulations employing reweighting and Taylor expansion techniques
have predicted a (\mu,T)-phase diagram according to general expectations, with
an analytic quark-hadron crossover at \mu=0 turning into a first order
transition at some critical chemical potential \mu_E. By contrast, recent
simulations using imgainary \mu followed by analytic continuation obtained a
critical structure in the {m_{u,d},m_s,T,\mu} parameter space favouring the
absence of a critical point and first order line. I review the evidence for the
latter scenario, arguing that the various raw data are not inconsistent with
each other. Rather, the discrepancy appears when attempting to extract
continuum results from the coarse (N_t=4) lattices simulated so far, and can be
explained by cut-off effects. New (as yet unpublished) data are presented,
which for N_f=3 and on N_t=4 confirm the scenario without a critical point.
Moreover, simulations on finer N_t=6 lattices show that even if there is a
critical point, continuum extrapolation moves it to significantly larger values
of \mu_E than anticipated on coarse lattices.
| hep-ph | lattice simulations employing reweighting and taylor expansion techniques have predicted a mutphase diagram according to general expectations with an analytic quarkhadron crossover at mu0 turning into a first order transition at some critical chemical potential mu_e by contrast recent simulations using imgainary mu followed by analytic continuation obtained a critical structure in the m_udm_stmu parameter space favouring the absence of a critical point and first order line i review the evidence for the latter scenario arguing that the various raw data are not inconsistent with each other rather the discrepancy appears when attempting to extract continuum results from the coarse n_t4 lattices simulated so far and can be explained by cutoff effects new as yet unpublished data are presented which for n_f3 and on n_t4 confirm the scenario without a critical point moreover simulations on finer n_t6 lattices show that even if there is a critical point continuum extrapolation moves it to significantly larger values of mu_e than anticipated on coarse lattices | [['lattice', 'simulations', 'employing', 'reweighting', 'and', 'taylor', 'expansion', 'techniques', 'have', 'predicted', 'a', 'mutphase', 'diagram', 'according', 'to', 'general', 'expectations', 'with', 'an', 'analytic', 'quarkhadron', 'crossover', 'at', 'mu0', 'turning', 'into', 'a', 'first', 'order', 'transition', 'at', 'some', 'critical', 'chemical', 'potential', 'mu_e', 'by', 'contrast', 'recent', 'simulations', 'using', 'imgainary', 'mu', 'followed', 'by', 'analytic', 'continuation', 'obtained', 'a', 'critical', 'structure', 'in', 'the', 'm_udm_stmu', 'parameter', 'space', 'favouring', 'the', 'absence', 'of', 'a', 'critical', 'point', 'and', 'first', 'order', 'line', 'i', 'review', 'the', 'evidence', 'for', 'the', 'latter', 'scenario', 'arguing', 'that', 'the', 'various', 'raw', 'data', 'are', 'not', 'inconsistent', 'with', 'each', 'other', 'rather', 'the', 'discrepancy', 'appears', 'when', 'attempting', 'to', 'extract', 'continuum', 'results', 'from', 'the', 'coarse', 'n_t4', 'lattices', 'simulated', 'so', 'far', 'and', 'can', 'be', 'explained', 'by', 'cutoff', 'effects', 'new', 'as', 'yet', 'unpublished', 'data', 'are', 'presented', 'which', 'for', 'n_f3', 'and', 'on', 'n_t4', 'confirm', 'the', 'scenario', 'without', 'a', 'critical', 'point', 'moreover', 'simulations', 'on', 'finer', 'n_t6', 'lattices', 'show', 'that', 'even', 'if', 'there', 'is', 'a', 'critical', 'point', 'continuum', 'extrapolation', 'moves', 'it', 'to', 'significantly', 'larger', 'values', 'of', 'mu_e', 'than', 'anticipated', 'on', 'coarse', 'lattices']] | [-0.07184922395848066, 0.14337536575847068, -0.11899861782414359, 0.09560513221468402, -0.05488347873654006, -0.13727186479365583, 0.1287120099197019, 0.3888903218409363, -0.19921931416768604, -0.26999854984101634, 0.13685834929918134, -0.2807803527223614, -0.10973619598298225, 0.17014693066993225, 0.02579602774279485, 0.036663819680743816, 0.04230876200182258, 0.004025557847201543, -0.10750237578063407, -0.21185897866779435, 0.34294346553045063, 0.055648417666015575, 0.25494545521858913, 0.0571321453459842, 0.012353412966601222, -0.0374490116992321, -0.022806924568641487, 0.05605985999557463, -0.18217171918948213, 0.046387180401914335, 0.1934732470585256, 0.015463951860888387, 0.2233437881614638, -0.38778890005119565, -0.2632618503932074, 0.09924535351108361, 0.1688161273285565, 0.12109285802946503, -0.043093976026559073, -0.27451981994273644, 0.08583436211067363, -0.11895523487982697, -0.1703779686728504, -0.11000791266708819, 0.005905070321622697, -0.017001899457155908, -0.287670705234998, 0.06103006950374575, 0.018053044821282133, 0.10983989814899674, -0.03757817047478268, -0.1613306763498464, -0.03931721236407405, 0.08770299293909883, 0.02739758012851454, 0.10402450522220454, 0.12392087400826456, -0.112462537565251, -0.09722246309748189, 0.4219996192076671, -0.05011507032086572, -0.1370566102043497, 0.2056230379710759, -0.19292838228485729, -0.1284934842450919, 0.1570135699350785, 0.0800056630531736, 0.06055225958423865, -0.09153190849624565, 0.05932267957349431, -0.011735716081991698, 0.18575640149402092, 0.05337292239444811, -0.03622765050807077, 0.2194922457993874, 0.15096965839986765, 0.03733290938232914, 0.08948665457837535, -0.058964940132104654, -0.13949488645196897, -0.3173959684856939, -0.05396835974552346, -0.20130982113205506, 0.05462782924898546, -0.13248975177510763, -0.12060425036042086, 0.2949301137284335, 0.19473856518853386, 0.26206396710502466, 0.054941923563286615, 0.27856171431617355, 0.12687777797471872, 0.07890553930012872, 0.04389571299946299, 0.23122805662899068, 0.06961884409183366, 0.09655658754889133, -0.17831117097718888, 0.015970486626995482, 0.093605910422011] |
710.1218 | Luminescence evidence for bulk and surface excitons in free xenon
clusters | Cathodoluminescence spectra of free xenon clusters produced by condensation
of xenon-argon gas mixtures in supersonic jets expanding into vacuum were
studied. By varying initial experimental parameters, including xenon
concentration, we could obtain clusters with a xenon core (300-3500 atoms)
covered by an argon outer shell as well as shell-free xenon clusters (about
1500 atoms). The cluster size and temperature (about 40 K for both cases) were
measured electronographically. Luminescence bands evidencing the existence of
bulk and surface excitons were detected for shell-free xenon clusters. The
emission from bulk excitons in small clusters is supposed to be due to
processes of their multiple elastic reflections from the xenon-vacuum
interface. A presence of an argon shell causes extinction of the excitonic
bands. In addition, some new bands were found which have no analogs for bulk
xenon cryosamples.
| physics.atm-clus physics.optics | cathodoluminescence spectra of free xenon clusters produced by condensation of xenonargon gas mixtures in supersonic jets expanding into vacuum were studied by varying initial experimental parameters including xenon concentration we could obtain clusters with a xenon core 3003500 atoms covered by an argon outer shell as well as shellfree xenon clusters about 1500 atoms the cluster size and temperature about 40 k for both cases were measured electronographically luminescence bands evidencing the existence of bulk and surface excitons were detected for shellfree xenon clusters the emission from bulk excitons in small clusters is supposed to be due to processes of their multiple elastic reflections from the xenonvacuum interface a presence of an argon shell causes extinction of the excitonic bands in addition some new bands were found which have no analogs for bulk xenon cryosamples | [['cathodoluminescence', 'spectra', 'of', 'free', 'xenon', 'clusters', 'produced', 'by', 'condensation', 'of', 'xenonargon', 'gas', 'mixtures', 'in', 'supersonic', 'jets', 'expanding', 'into', 'vacuum', 'were', 'studied', 'by', 'varying', 'initial', 'experimental', 'parameters', 'including', 'xenon', 'concentration', 'we', 'could', 'obtain', 'clusters', 'with', 'a', 'xenon', 'core', '3003500', 'atoms', 'covered', 'by', 'an', 'argon', 'outer', 'shell', 'as', 'well', 'as', 'shellfree', 'xenon', 'clusters', 'about', '1500', 'atoms', 'the', 'cluster', 'size', 'and', 'temperature', 'about', '40', 'k', 'for', 'both', 'cases', 'were', 'measured', 'electronographically', 'luminescence', 'bands', 'evidencing', 'the', 'existence', 'of', 'bulk', 'and', 'surface', 'excitons', 'were', 'detected', 'for', 'shellfree', 'xenon', 'clusters', 'the', 'emission', 'from', 'bulk', 'excitons', 'in', 'small', 'clusters', 'is', 'supposed', 'to', 'be', 'due', 'to', 'processes', 'of', 'their', 'multiple', 'elastic', 'reflections', 'from', 'the', 'xenonvacuum', 'interface', 'a', 'presence', 'of', 'an', 'argon', 'shell', 'causes', 'extinction', 'of', 'the', 'excitonic', 'bands', 'in', 'addition', 'some', 'new', 'bands', 'were', 'found', 'which', 'have', 'no', 'analogs', 'for', 'bulk', 'xenon', 'cryosamples']] | [-0.014017595761986234, 0.23781317088490372, -0.031335814137647085, 0.03906486252983382, 0.03942420800909573, -0.09090754581893282, 0.045312742042073674, 0.4272613835109528, -0.21273543559332458, -0.3533540699313315, 0.030974892279414763, -0.3483070505046567, 0.028815820562299484, 0.1520719318650663, 0.05502107413846624, -0.0024311725887679317, 0.019333554849627812, -0.07879539836530192, -0.05346908149591019, -0.24323231000146403, 0.24476183394092865, 0.08182250764428516, 0.21633610621730023, 0.08259982391903105, 0.04452999675097738, -0.0724327440171452, 0.019020063961430113, 0.003392680099715326, -0.12812935412218868, 0.0448582074555294, 0.2724126049988838, 0.0011280852391622788, 0.17029111997741941, -0.46228468861402006, -0.2557959900519183, 0.047079959523308186, 0.16431169080649063, 0.0960958627357857, -0.1130036129047661, -0.3450143627999278, 0.0310653842418895, -0.1312478674907786, -0.15069910915669546, 0.004447872549216011, 0.015338691254687864, 0.032847191829797485, -0.1817462909533534, 0.13635254850928752, -0.015596206655072466, 0.05747382264122251, -0.15964197763061339, -0.17107894086791564, -0.03803507718365899, 0.03661811787476258, 0.01664174517594971, -0.04611501428154261, 0.26498896123971355, -0.11719895341224218, -0.019849930644439635, 0.39862616791194955, -0.09038235332686888, -0.02197993743096211, 0.248285193523291, -0.1749697235636702, -0.04100048868346584, 0.27185722288870534, 0.14203307247096167, 0.10121565090867785, -0.1553116927786131, 0.04706220440620686, -0.04960840252181154, 0.21205142029207344, 0.1796471855829672, 0.0651293743804256, 0.2613766661253144, 0.1443722682468983, 0.023716349614054947, 0.1648168519478609, -0.1944531909940952, -0.012336280796128187, -0.2567171007868574, -0.19090111607815638, -0.13828750564030898, 0.01537240044188563, -0.048868336923945654, -0.15235468564742757, 0.3053062458147201, 0.011090710910773554, 0.18979603664526742, -0.06429106380353689, 0.21271005788431754, 0.04193955545905942, 0.08115039636965754, 0.02948463992251791, 0.2721623802431697, 0.18453843399607975, 0.08380433578448471, -0.23977397857486565, 0.07431616030756182, -0.022422566380019684] |
710.1219 | First results of the Noether theorem for Hopf-algebra spacetime
symmetries | We summarize here the first results obtained using a technique we recently
developed for the Noether analysis of Hopf-algebra spacetime symmetries,
including the derivation of conserved charges for field theories in
noncommutative spacetimes of canonical or kappa-Minkowski type.
| gr-qc | we summarize here the first results obtained using a technique we recently developed for the noether analysis of hopfalgebra spacetime symmetries including the derivation of conserved charges for field theories in noncommutative spacetimes of canonical or kappaminkowski type | [['we', 'summarize', 'here', 'the', 'first', 'results', 'obtained', 'using', 'a', 'technique', 'we', 'recently', 'developed', 'for', 'the', 'noether', 'analysis', 'of', 'hopfalgebra', 'spacetime', 'symmetries', 'including', 'the', 'derivation', 'of', 'conserved', 'charges', 'for', 'field', 'theories', 'in', 'noncommutative', 'spacetimes', 'of', 'canonical', 'or', 'kappaminkowski', 'type']] | [-0.12677565417987735, 0.09074226625900912, -0.09756966190118539, 0.08410416636615992, -0.1206245556424715, -0.11132642522601313, -0.058645734750347116, 0.2902559106189169, -0.16598056266574482, -0.2452535738580321, 0.06939628082756444, -0.23739444052702502, -0.17935024690201604, 0.17891999862867555, -0.07757490237341508, 0.025805653906182238, -0.03349757606261655, 0.055577116969384645, -0.19549927938925593, -0.19223044136551357, 0.4236356996391949, 0.048468701345355886, 0.2782756771010004, -0.018994134397392993, 0.17872422580656253, 0.03611591175247572, -0.11238484427725014, 0.08335811529602659, -0.22070011916864468, 0.10905681549890064, 0.19007233919355235, 0.12960106073143451, 0.11699996643552654, -0.44817870031846196, -0.21594558085167878, 0.05370980900663294, 0.14507889605470395, 0.20080810376001815, -0.11868727580938292, -0.3300602756146538, 0.06796468270438613, -0.20981484727541866, -0.2006656028526394, -0.138640301081499, 0.03818390796904599, -0.030405726712687237, -0.20993273666030482, 0.10874774751228918, 0.08441035072686837, 0.10118245454137459, -0.14236304607536449, -0.09964947020144839, -0.024796517761914355, 0.057504142236307655, 0.09354476052287378, -0.025670715117532956, 0.11010625436411876, -0.10161668159018614, -0.2377354568850837, 0.33472346954390797, -0.03594413002658831, -0.2629325020274049, 0.08306195697207984, -0.15853238059207797, -0.2640740374642375, 0.019022055472688454, 0.08549130597691003, 0.2402923400268743, -0.17539714414038157, 0.19171769407234693, -0.021319005552581267, 0.05094873468930784, 0.07747197153634931, 0.05086581129580736, 0.2109072118213302, 0.07856294701464082, -0.016062135538576466, 0.10869637676392142, -0.037724347932166176, -0.15261481184432724, -0.44492674579745844, -0.22000877692756293, -0.14900138920271083, 0.11665165726720404, -0.09331801335180276, -0.11513871209401834, 0.3977504609838912, 0.15140819184384063, 0.06512205873763091, 0.020594793249313768, 0.20431698986182087, 0.10926150142117158, 0.08198358750853099, 0.027106387883816894, 0.2340739975977493, 0.2227166336225836, 0.12183599555129676, -0.15706209083528896, -0.16306774471396288, 0.21531599483109617] |
710.122 | From Bruhat intervals to intersection lattices and a conjecture of
Postnikov | We prove the conjecture of A. Postnikov that (A) the number of regions in the
inversion hyperplane arrangement associated with a permutation $w\in \Sn$ is at
most the number of elements below $w$ in the Bruhat order, and (B) that
equality holds if and only if $w$ avoids the patterns 4231, 35142, 42513 and
351624. Furthermore, assertion (A) is extended to all finite reflection groups.
A byproduct of this result and its proof is a set of inequalities relating
Betti numbers of complexified inversion arrangements to Betti numbers of closed
Schubert cells. Another consequence is a simple combinatorial interpretation of
the chromatic polynomial of the inversion graph of a permutation which avoids
the above patterns.
| math.CO | we prove the conjecture of a postnikov that a the number of regions in the inversion hyperplane arrangement associated with a permutation win sn is at most the number of elements below w in the bruhat order and b that equality holds if and only if w avoids the patterns 4231 35142 42513 and 351624 furthermore assertion a is extended to all finite reflection groups a byproduct of this result and its proof is a set of inequalities relating betti numbers of complexified inversion arrangements to betti numbers of closed schubert cells another consequence is a simple combinatorial interpretation of the chromatic polynomial of the inversion graph of a permutation which avoids the above patterns | [['we', 'prove', 'the', 'conjecture', 'of', 'a', 'postnikov', 'that', 'a', 'the', 'number', 'of', 'regions', 'in', 'the', 'inversion', 'hyperplane', 'arrangement', 'associated', 'with', 'a', 'permutation', 'win', 'sn', 'is', 'at', 'most', 'the', 'number', 'of', 'elements', 'below', 'w', 'in', 'the', 'bruhat', 'order', 'and', 'b', 'that', 'equality', 'holds', 'if', 'and', 'only', 'if', 'w', 'avoids', 'the', 'patterns', '4231', '35142', '42513', 'and', '351624', 'furthermore', 'assertion', 'a', 'is', 'extended', 'to', 'all', 'finite', 'reflection', 'groups', 'a', 'byproduct', 'of', 'this', 'result', 'and', 'its', 'proof', 'is', 'a', 'set', 'of', 'inequalities', 'relating', 'betti', 'numbers', 'of', 'complexified', 'inversion', 'arrangements', 'to', 'betti', 'numbers', 'of', 'closed', 'schubert', 'cells', 'another', 'consequence', 'is', 'a', 'simple', 'combinatorial', 'interpretation', 'of', 'the', 'chromatic', 'polynomial', 'of', 'the', 'inversion', 'graph', 'of', 'a', 'permutation', 'which', 'avoids', 'the', 'above', 'patterns']] | [-0.1868559803863588, 0.1303705965651066, -0.06910751486845713, 0.056147746489192026, -0.10854874331354429, -0.12960667529426115, 0.1084780977227118, 0.288718730452404, -0.3206857951892224, -0.2593777987991156, 0.08710986710450795, -0.2345696158653092, -0.15133905576242665, 0.16965211294674581, -0.12647240203971574, -0.03062372688093871, 0.04990860256033817, 0.07555788751778891, -0.05285412096515886, -0.26620959739713207, 0.317091931331171, -0.0661258353751951, 0.2165251643891679, 0.06289953046611377, 0.09253466151286764, 0.006536365253850818, -0.008370970263578264, 0.025491948641761804, -0.10774000269741789, 0.12177354436893698, 0.25034918719237403, 0.14831519089264994, 0.21081198594765738, -0.35737937852640506, -0.08896835475336827, 0.1906832332315389, 0.13478549056734274, 0.06956604001191279, -0.034890090425116274, -0.2059176947056715, 0.1422046950839493, -0.13121215553837828, -0.19965927179769746, 0.003149302634743175, 0.07290104246099613, 0.020941572297098383, -0.2823265289147717, 0.022714445500501564, 0.12145133327326871, 0.1046711788356853, 0.008538082326205247, -0.10195851208637967, -0.07294416409526353, 0.05433400262700161, -0.008253721847722773, -0.003441946763944413, 0.049439328559466436, -0.10081223236712893, -0.15033192792907357, 0.39454077616600053, 0.0381415126893054, -0.19289132308248164, 0.1219633448802467, -0.1979062073431643, -0.1763239665805096, 0.16558167567875767, 0.05394414936225595, 0.12337825899677617, -0.001811344425992242, 0.13720927055900184, -0.1766014365213258, 0.11337476033284995, 0.16466885286250285, -0.0047129627658120754, 0.12438430437552077, 0.0772754761149242, 0.10324284763607595, 0.1473370377726886, -0.04112221573398399, -0.003860122262267396, -0.365855372785258, -0.2379473838445847, -0.20721327793788596, 0.10000166254550484, -0.14511456383479526, -0.19682922701758798, 0.4041140716872178, 0.0501437426677772, 0.2087485601888537, 0.09900282123895263, 0.23988269865263387, 0.07670134196100012, 0.07132899853760526, 0.016842644911126366, 0.09414079163356551, 0.2579304699985577, 0.0006825710255985282, -0.15853587782060327, 0.07171983200117081, 0.19972560692778124] |
710.1221 | Sensitivity of the magnetic state of a spin lattice on itinerant
electron orbital phase | Spatially extended localized spins can interact via indirect exchange
interaction through Friedel oscillations in the Fermi sea. In arrays of
localized spins such interaction can lead to a magnetically ordered phase.
Without external magnetic field such a phase is well understood via a
"two-impurity" Kondo model. Here we employ non-equilibrium transport
spectroscopy to investigate the role of the orbital phase of conduction
electrons on the magnetic state of a spin lattice. We show experimentally, that
even tiniest perpendicular magnetic field can influence the magnitude of the
inter-spin magnetic exchange.
| cond-mat.mes-hall | spatially extended localized spins can interact via indirect exchange interaction through friedel oscillations in the fermi sea in arrays of localized spins such interaction can lead to a magnetically ordered phase without external magnetic field such a phase is well understood via a twoimpurity kondo model here we employ nonequilibrium transport spectroscopy to investigate the role of the orbital phase of conduction electrons on the magnetic state of a spin lattice we show experimentally that even tiniest perpendicular magnetic field can influence the magnitude of the interspin magnetic exchange | [['spatially', 'extended', 'localized', 'spins', 'can', 'interact', 'via', 'indirect', 'exchange', 'interaction', 'through', 'friedel', 'oscillations', 'in', 'the', 'fermi', 'sea', 'in', 'arrays', 'of', 'localized', 'spins', 'such', 'interaction', 'can', 'lead', 'to', 'a', 'magnetically', 'ordered', 'phase', 'without', 'external', 'magnetic', 'field', 'such', 'a', 'phase', 'is', 'well', 'understood', 'via', 'a', 'twoimpurity', 'kondo', 'model', 'here', 'we', 'employ', 'nonequilibrium', 'transport', 'spectroscopy', 'to', 'investigate', 'the', 'role', 'of', 'the', 'orbital', 'phase', 'of', 'conduction', 'electrons', 'on', 'the', 'magnetic', 'state', 'of', 'a', 'spin', 'lattice', 'we', 'show', 'experimentally', 'that', 'even', 'tiniest', 'perpendicular', 'magnetic', 'field', 'can', 'influence', 'the', 'magnitude', 'of', 'the', 'interspin', 'magnetic', 'exchange']] | [-0.2551066383321801, 0.3258533382558086, -0.021325768819183445, 0.11091684133175425, -0.042592503549007885, -0.10840216219383345, 0.07770162068956186, 0.41414957457180185, -0.3125037821428327, -0.2996602228141568, -0.015426098947214443, -0.2763984345757727, -0.11161054199917263, 0.15024060160745709, 0.12247893851763161, -0.07226503092934262, -0.005872569499495491, -0.0022951409513695857, -0.07057023173972463, -0.16740075289794987, 0.2840620446737641, -0.000570923513785172, 0.2556117141378646, 0.11732878756782647, 0.02489228652832046, 0.0706691632800725, 0.13088149042653568, 0.06741997581027616, -0.07313547256800641, 0.009137529471700781, 0.1961424638938389, -0.13131985795066764, 0.18546922030345944, -0.5223549119918869, -0.21496863552274997, 0.035060214893787765, 0.20331541684539883, 0.1810227900094698, -0.0710581565403976, -0.310693810390455, -0.06090173217352857, -0.17788686239150134, -0.1375905235547813, -0.14093730116807177, -0.07754524892164666, 0.01579427784518077, -0.28975316706333265, 0.14914455225042414, 0.05007610401384574, 0.07415417880029156, -0.11169689388296912, -0.05022817446190989, -0.07995295723680448, 0.07581287571176719, 0.03217563546508592, 0.08529251367063, 0.18358460308335137, -0.1089390837299648, -0.14399721883655933, 0.32226295066013766, -0.0929860949432582, -0.13516332258292463, 0.20106460918996777, -0.1958402040927263, -0.026728538137054846, 0.1373454835893733, 0.16344876000866965, 0.08690504106075576, -0.14242919643665924, 0.09248544651428971, -0.007292917019195771, 0.16741404015560415, -0.019189328311032122, 0.07225895439159502, 0.3424266799237956, 0.1651759743245758, 0.04626980261730679, 0.184315866199479, -0.16125888042047284, -0.10874910984878962, -0.17593335923791098, -0.12748775707447924, -0.24073697071982902, 0.10420450377487316, -0.043903599828063106, -0.1967570412161059, 0.43216297280022437, 0.1964722377342287, 0.14640589104442114, -0.1457617769457316, 0.26404559323982746, 0.07653518361196424, 0.04631667958802722, 0.029318800227444493, 0.29679171095361534, 0.20212572916630614, 0.09031449896649699, -0.3463853703016478, 0.050755990255791486, 0.03237617773453841] |
710.1222 | Euler Characteristic of real nondegenerate tropical complete
intersections | We define nondegenerate tropical complete intersections imitating the
corresponding definition in complex algebraic geometry. As in the complex
situation, all nonzero intersection multiplicity numbers between tropical
hypersurfaces defining a nondegenerate tropical complete intersection are equal
to 1. The intersection multiplicity numbers we use are sums of mixed volumes of
polytopes which are dual to cells of the tropical hypersurfaces. We show that
the Euler characteristic of a real nondegenerate tropical complete intersection
depends only on the Newton polytopes of the tropical polynomials which define
the intersection. Basically, it is equal to the usual signature of a complex
complete intersection with same Newton polytopes, when this signature is
defined. The proof reduces to the toric hypersurface case, and uses the notion
of $E$-polynomials of complex varieties.
| math.AG math.CO | we define nondegenerate tropical complete intersections imitating the corresponding definition in complex algebraic geometry as in the complex situation all nonzero intersection multiplicity numbers between tropical hypersurfaces defining a nondegenerate tropical complete intersection are equal to 1 the intersection multiplicity numbers we use are sums of mixed volumes of polytopes which are dual to cells of the tropical hypersurfaces we show that the euler characteristic of a real nondegenerate tropical complete intersection depends only on the newton polytopes of the tropical polynomials which define the intersection basically it is equal to the usual signature of a complex complete intersection with same newton polytopes when this signature is defined the proof reduces to the toric hypersurface case and uses the notion of epolynomials of complex varieties | [['we', 'define', 'nondegenerate', 'tropical', 'complete', 'intersections', 'imitating', 'the', 'corresponding', 'definition', 'in', 'complex', 'algebraic', 'geometry', 'as', 'in', 'the', 'complex', 'situation', 'all', 'nonzero', 'intersection', 'multiplicity', 'numbers', 'between', 'tropical', 'hypersurfaces', 'defining', 'a', 'nondegenerate', 'tropical', 'complete', 'intersection', 'are', 'equal', 'to', '1', 'the', 'intersection', 'multiplicity', 'numbers', 'we', 'use', 'are', 'sums', 'of', 'mixed', 'volumes', 'of', 'polytopes', 'which', 'are', 'dual', 'to', 'cells', 'of', 'the', 'tropical', 'hypersurfaces', 'we', 'show', 'that', 'the', 'euler', 'characteristic', 'of', 'a', 'real', 'nondegenerate', 'tropical', 'complete', 'intersection', 'depends', 'only', 'on', 'the', 'newton', 'polytopes', 'of', 'the', 'tropical', 'polynomials', 'which', 'define', 'the', 'intersection', 'basically', 'it', 'is', 'equal', 'to', 'the', 'usual', 'signature', 'of', 'a', 'complex', 'complete', 'intersection', 'with', 'same', 'newton', 'polytopes', 'when', 'this', 'signature', 'is', 'defined', 'the', 'proof', 'reduces', 'to', 'the', 'toric', 'hypersurface', 'case', 'and', 'uses', 'the', 'notion', 'of', 'epolynomials', 'of', 'complex', 'varieties']] | [-0.22186418870836497, 0.05839029005449265, -0.094145866304636, 0.11839582947734743, -0.09073878812044858, -0.11655742291733623, -0.03686394418776035, 0.23067239028960465, -0.33184112475812433, -0.18354743108898403, 0.10283702219836414, -0.25821249674074354, -0.1898453245171695, 0.1590488106608391, -0.2030049081146717, -0.03555657915398479, 0.023393184825778006, 0.06215994653478265, -0.10897784131206573, -0.3390908581390977, 0.4319414025247097, -0.06415493444353342, 0.24029756157100202, 0.06405436680093407, 0.1187094261571765, 0.03351760183274746, 0.005463547918945551, 0.05236726861074567, -0.12366634455538587, 0.16752091993391513, 0.31955323347449305, 0.1662301091738045, 0.12618070594966413, -0.39475945496559145, -0.07750843409448863, 0.2562493593543768, 0.09273580915853381, 0.024488153483718633, 0.08351483189594, -0.1424227655995637, 0.07546226625517011, -0.08891389795020223, -0.2517581292837858, -0.06851919505745173, 0.027288136951625346, 0.06783319245278835, -0.21442798187397422, -0.04012277501821518, 0.0672751719802618, 0.21303770367056132, -0.011299589857459068, -0.12225159737374633, -0.12138674168847502, 0.03623378474195488, -0.06291618424654007, 0.023968904402107, 0.050063526082783937, -0.06117810005508363, -0.1355724997483194, 0.38124858257174493, 0.015603731836192309, -0.24688963878154754, 0.15651129529625177, -0.20906222908571362, -0.1040871102027595, 0.1938611554633826, 0.14978233837708832, 0.20508344764634967, 0.001831530855386518, 0.12073477736813948, -0.13980584149435163, -0.008403123818337917, 0.15123779606446625, -0.03807994510605931, 0.19294936464354395, 0.07606372182630003, 0.09938883846253156, 0.1459323085267097, -0.0027897392604500056, -0.16124575900658966, -0.3641298398673534, -0.20781432670541108, -0.17386182085517793, 0.16052465519309045, -0.1583329992851941, -0.2314547556862235, 0.39286804720386864, -0.0003571005165576935, 0.22318438502401114, 0.10136792197916657, 0.30932680652663114, 0.0633571222787723, 0.027454439844936132, 0.06355755303055048, 0.13333107032626867, 0.21114917692542076, 0.010611340742558241, -0.12110445899888873, -0.0004463562145829201, 0.21499297372065485] |
710.1223 | Jet broadening in unstable non-Abelian plasmas | We perform numerical simulations of the QCD Boltzmann-Vlasov equation
including both hard elastic particle collisions and soft interactions mediated
by classical Yang-Mills fields. We provide an estimate of the coupling of jets
to a hot plasma which is independent of infrared cutoffs. For weakly-coupled
anisotropic plasmas the local rotational symmetry in momentum space is broken.
The fields develop unstable modes, forming configurations where B_t>E_t and
E_z>B_z. This provides a possible explanation for the experimental observation
that high-energy jets traversing the plasma perpendicular to the beam axis
experience much stronger broadening in rapidity than in azimuth.
| hep-ph nucl-th | we perform numerical simulations of the qcd boltzmannvlasov equation including both hard elastic particle collisions and soft interactions mediated by classical yangmills fields we provide an estimate of the coupling of jets to a hot plasma which is independent of infrared cutoffs for weaklycoupled anisotropic plasmas the local rotational symmetry in momentum space is broken the fields develop unstable modes forming configurations where b_te_t and e_zb_z this provides a possible explanation for the experimental observation that highenergy jets traversing the plasma perpendicular to the beam axis experience much stronger broadening in rapidity than in azimuth | [['we', 'perform', 'numerical', 'simulations', 'of', 'the', 'qcd', 'boltzmannvlasov', 'equation', 'including', 'both', 'hard', 'elastic', 'particle', 'collisions', 'and', 'soft', 'interactions', 'mediated', 'by', 'classical', 'yangmills', 'fields', 'we', 'provide', 'an', 'estimate', 'of', 'the', 'coupling', 'of', 'jets', 'to', 'a', 'hot', 'plasma', 'which', 'is', 'independent', 'of', 'infrared', 'cutoffs', 'for', 'weaklycoupled', 'anisotropic', 'plasmas', 'the', 'local', 'rotational', 'symmetry', 'in', 'momentum', 'space', 'is', 'broken', 'the', 'fields', 'develop', 'unstable', 'modes', 'forming', 'configurations', 'where', 'b_te_t', 'and', 'e_zb_z', 'this', 'provides', 'a', 'possible', 'explanation', 'for', 'the', 'experimental', 'observation', 'that', 'highenergy', 'jets', 'traversing', 'the', 'plasma', 'perpendicular', 'to', 'the', 'beam', 'axis', 'experience', 'much', 'stronger', 'broadening', 'in', 'rapidity', 'than', 'in', 'azimuth']] | [-0.1590335625474171, 0.2738486062499046, -0.12563445935368797, 0.11450772183341405, -0.07649079673192515, -0.09447480033412176, -0.040511776803321735, 0.4072474623799965, -0.19908368564461187, -0.28039865825645705, -0.008928182902896115, -0.2637630697610157, 0.0005074421748749271, 0.13128139126059468, 0.0719694990504493, 0.031696999675884685, 0.039584232934860776, -0.06052168711277616, -0.028648706479123244, -0.12776069381269275, 0.2787010331515483, 0.10124394718197084, 0.2433513905752891, 0.08077812095182718, 0.07966928133836157, 0.051929548327680874, -0.012893520248052414, 0.002380344030004175, -0.1322462178231749, 0.0377054666297295, 0.19745701808802862, -0.016786066257668365, 0.17587938250802326, -0.45555257228433443, -0.22391355474309255, 0.04834888909532819, 0.18942217735112996, 0.09452708468457023, -0.07317728516601918, -0.22696630196065032, 0.0006901825257446817, -0.1556201564618737, -0.20243476800400242, -0.07445296120419297, 0.01043906123928165, -0.020745692049874174, -0.32452177019008704, 0.12493964527503297, 0.03090950841414592, 0.04723621532320976, -0.06680980753353848, -0.06326883353332999, -0.0585536601207149, 0.002110585904560022, 0.1281592185528929, 0.09385966946701368, 0.17731938173278405, -0.18491907495321827, -0.13672789757049852, 0.408879937574027, -0.00969144635191012, -0.1550907592654669, 0.22666223028734808, -0.1795118414616633, -0.10683385709360722, 0.2147159445530144, 0.2049406835538966, 0.12510516478489803, -0.11447161081327145, 0.052448871689448034, -0.03543482851662663, 0.1229081148261665, 0.06859359102541461, 0.05425579456352098, 0.2377665646033742, 0.15531343978739554, 0.013023475355278421, 0.1369865983624452, -0.09202350178352928, -0.11489022747545893, -0.34395341454975065, -0.10322095362922698, -0.14252735636327216, 0.044387147045864536, -0.08997616175310535, -0.14772775648061626, 0.35764831513346684, 0.14356715536253245, 0.18959573684078743, -0.056740085082379, 0.34028990650849955, 0.09016116001513055, 0.03919696369238438, 0.13115855019980222, 0.3343319632513549, 0.18641153139047204, 0.1455786843353542, -0.25381517249049357, -0.05065607528392506, 0.05636258130787962] |
710.1224 | Quantum cohomology of minuscule homogeneous spaces III : semi-simplicity
and consequences | We prove that the quantum cohomology ring of any minuscule or cominuscule
homogeneous space, specialized at q=1, is semisimple. This implies that complex
conjugation defines an algebra automorphism of the quantum cohomology ring
localized at the quantum parameter. We check that this involution coincides
with the strange duality defined in a previous paper. We deduce
Vafa-Intriligator type formulas for the Gromov-Witten invariants.
| math.AG | we prove that the quantum cohomology ring of any minuscule or cominuscule homogeneous space specialized at q1 is semisimple this implies that complex conjugation defines an algebra automorphism of the quantum cohomology ring localized at the quantum parameter we check that this involution coincides with the strange duality defined in a previous paper we deduce vafaintriligator type formulas for the gromovwitten invariants | [['we', 'prove', 'that', 'the', 'quantum', 'cohomology', 'ring', 'of', 'any', 'minuscule', 'or', 'cominuscule', 'homogeneous', 'space', 'specialized', 'at', 'q1', 'is', 'semisimple', 'this', 'implies', 'that', 'complex', 'conjugation', 'defines', 'an', 'algebra', 'automorphism', 'of', 'the', 'quantum', 'cohomology', 'ring', 'localized', 'at', 'the', 'quantum', 'parameter', 'we', 'check', 'that', 'this', 'involution', 'coincides', 'with', 'the', 'strange', 'duality', 'defined', 'in', 'a', 'previous', 'paper', 'we', 'deduce', 'vafaintriligator', 'type', 'formulas', 'for', 'the', 'gromovwitten', 'invariants']] | [-0.2741399336239842, 0.1001134888046196, -0.10885073378926417, 0.05887330264486678, -0.11001735602001675, -0.1796745138746671, -0.035921520013438506, 0.2820766353827031, -0.3704991073454501, -0.14699308192510097, 0.04934480137642107, -0.2061052218110102, -0.15926044900351982, 0.16599516131243378, -0.16859024400382921, -0.04166832062431046, 0.032737157948803705, 0.1257260521095185, -0.14664732155267943, -0.28085239433118553, 0.46060782121341737, -0.047499595452329055, 0.2091037575651693, 0.05203757860285581, 0.09917482930678324, 0.007835814172066137, 0.01079951379387105, -0.06389608671631068, -0.1792909230321949, 0.09174719376901745, 0.3349988476419058, 0.03552135099565274, 0.11438959774362747, -0.37634989594826934, -0.09926977271183593, 0.22748619551602445, 0.14985123902490577, 0.05299082315969662, -0.017219191492004626, -0.26077747775516547, 0.13305456137864805, -0.22545586795103353, -0.25852943704936837, -0.09521376604183776, 0.07008734745446776, -0.03049223881298829, -0.22903870681270225, -0.0014148746907222465, 0.10464150857821596, 0.17282561073843083, -0.061923542540886854, -0.04721346639524229, -0.059999389726607524, 0.05254565675162756, -0.10295174309418949, 0.08225190663160603, 0.12875386291626292, -0.09455805997837519, -0.16410406308294442, 0.3532341800507952, -0.03344520116911926, -0.2048454978426949, 0.10090430001499223, -0.2046392090221653, -0.22791744953357293, 0.0910663476355038, 0.00040688391652752144, 0.17977986930841847, 0.03132926117434151, 0.24541558682552125, -0.1391261897095647, 0.07682877192731763, 0.10103083679788426, 0.014266616031222168, 0.16441405843943357, 0.03880224628832008, 0.07174323344332181, 0.15976743662699325, 0.03431741302436004, -0.0904005739139393, -0.3999252275365298, -0.2541184780630665, -0.14061188406204103, 0.1829887106098601, -0.12776754388097125, -0.15861966522013554, 0.3896091781235987, 0.08829562779378573, 0.15060247706066146, 0.12694904974615964, 0.2162138081354196, 0.10005851557142421, 0.08988069749025047, 0.051460675574594834, 0.1079401619251451, 0.22154943917335973, -0.012764762804583937, -0.19015468245555386, -0.034007407404238084, 0.22664357246983735] |
710.1225 | Evidence of the virtual Anderson transition in a narrow impurity band of
p-GaAs/AlGaAs quantum wells: $\epsilon_4$ conductivity and electric breakdown
at low temperatures | In highly doped uncompensated p-type layers within the central part of
GaAs/AlGaAs quantum wells at low temperatures we observed an activated behavior
of the conductivity with low activation energies (1-3) meV which can not be
ascribed to standard mechanisms. We attribute this behavior to the
delocalization of hole states near the maximum of the narrow impurity band in
the sense of the Anderson transition. Low temperature conduction $\epsilon_4$
is supported by an activation of minority carriers - electrons (resulting from
a weak compensation by back-ground defects) - from the Fermi level to the band
of delocalized states mentioned above. The corresponding behavior can be
specified as virtual Anderson transition. Low temperature transport ($<4$ K)
exhibits also strong nonlinearity of a breakdown type characterized in
particular by S-shaped I-V curve. The nonlinearity is observed in unexpectedly
low fields ($<10$ V/cm). Such a behavior can be explained by a simple model
implying an impact ionization of the localized states of the minority carriers
mentioned above to the band of Anderson-delocalized states.
| cond-mat.dis-nn cond-mat.mtrl-sci | in highly doped uncompensated ptype layers within the central part of gaasalgaas quantum wells at low temperatures we observed an activated behavior of the conductivity with low activation energies 13 mev which can not be ascribed to standard mechanisms we attribute this behavior to the delocalization of hole states near the maximum of the narrow impurity band in the sense of the anderson transition low temperature conduction epsilon_4 is supported by an activation of minority carriers electrons resulting from a weak compensation by background defects from the fermi level to the band of delocalized states mentioned above the corresponding behavior can be specified as virtual anderson transition low temperature transport 4 k exhibits also strong nonlinearity of a breakdown type characterized in particular by sshaped iv curve the nonlinearity is observed in unexpectedly low fields 10 vcm such a behavior can be explained by a simple model implying an impact ionization of the localized states of the minority carriers mentioned above to the band of andersondelocalized states | [['in', 'highly', 'doped', 'uncompensated', 'ptype', 'layers', 'within', 'the', 'central', 'part', 'of', 'gaasalgaas', 'quantum', 'wells', 'at', 'low', 'temperatures', 'we', 'observed', 'an', 'activated', 'behavior', 'of', 'the', 'conductivity', 'with', 'low', 'activation', 'energies', '13', 'mev', 'which', 'can', 'not', 'be', 'ascribed', 'to', 'standard', 'mechanisms', 'we', 'attribute', 'this', 'behavior', 'to', 'the', 'delocalization', 'of', 'hole', 'states', 'near', 'the', 'maximum', 'of', 'the', 'narrow', 'impurity', 'band', 'in', 'the', 'sense', 'of', 'the', 'anderson', 'transition', 'low', 'temperature', 'conduction', 'epsilon_4', 'is', 'supported', 'by', 'an', 'activation', 'of', 'minority', 'carriers', 'electrons', 'resulting', 'from', 'a', 'weak', 'compensation', 'by', 'background', 'defects', 'from', 'the', 'fermi', 'level', 'to', 'the', 'band', 'of', 'delocalized', 'states', 'mentioned', 'above', 'the', 'corresponding', 'behavior', 'can', 'be', 'specified', 'as', 'virtual', 'anderson', 'transition', 'low', 'temperature', 'transport', '4', 'k', 'exhibits', 'also', 'strong', 'nonlinearity', 'of', 'a', 'breakdown', 'type', 'characterized', 'in', 'particular', 'by', 'sshaped', 'iv', 'curve', 'the', 'nonlinearity', 'is', 'observed', 'in', 'unexpectedly', 'low', 'fields', '10', 'vcm', 'such', 'a', 'behavior', 'can', 'be', 'explained', 'by', 'a', 'simple', 'model', 'implying', 'an', 'impact', 'ionization', 'of', 'the', 'localized', 'states', 'of', 'the', 'minority', 'carriers', 'mentioned', 'above', 'to', 'the', 'band', 'of', 'andersondelocalized', 'states']] | [-0.12977773775009954, 0.23209177983350734, -0.016500246165466147, 0.06352493377943826, 0.027444099265968438, -0.17375821948993997, 0.11679902781328433, 0.35767929060721254, -0.27491032129366805, -0.3121610289854727, -0.0017442996136799276, -0.3163274105930005, -0.09149812034566898, 0.14429142833995937, -0.020452729786791086, -0.03111931089247319, -0.03733911439047072, -0.024919918439903644, -0.08029267152894783, -0.17415410544616675, 0.29385307731446303, 0.08164108891519774, 0.3058440008232965, 0.13151338109914887, 0.04232832525172327, -0.021867342384431106, 0.15573429111222994, 0.04351466363688639, -0.07648035362638121, 0.04358446477990912, 0.2913903230296291, -0.08592605974570096, 0.22935851327850518, -0.401800269342353, -0.23076718186550066, 0.011411464012912419, 0.14676000000782738, 0.11610614375073844, -0.06518847522808306, -0.2948549335137997, 0.07846252876754671, -0.13201581277598415, -0.14843596568533096, -0.01737669524624495, -0.014580133625801305, -0.006926184017996651, -0.21005720091164562, 0.14113611107708252, 0.06872457058059546, 0.06786315110287662, -0.09709852012379253, -0.107734255935907, -0.09371558995075883, 0.07690169454442831, 0.036316771819733126, -0.0017067577136913314, 0.19419558451466082, -0.1467223517861001, -0.11233035897687414, 0.34317699341799124, -0.09766009296795511, -0.05502141062808447, 0.1888436324759779, -0.20908325691763535, -0.022854414297245353, 0.2561434616449749, 0.121453498879024, 0.08206600994601038, -0.12651820008254452, 0.0709156146890509, 0.013607164227729103, 0.17384040617406457, 0.03936669619540763, 0.06216638181246368, 0.25270932640723254, 0.15384872181548637, 0.0397462867458452, 0.12480300446026903, -0.13613041737453496, -0.027193492873156644, -0.27898477166554475, -0.12792014903716775, -0.23052272506349955, 0.10103827580139504, -0.059919907012954354, -0.1877424780739449, 0.42790233611174106, 0.09799560192966811, 0.24725956739773639, -0.043327204196528725, 0.17800482524648667, 0.2048472667453777, 0.061446079602801656, 0.0914013406250581, 0.26341700305634863, 0.1348165011156844, 0.109662916567401, -0.2637284867302795, 0.07479556834224207, -0.0067932489124710215] |
710.1226 | NIR Femtosecond Control of Resonance-Mediated Generation of Coherent
Broadband UV Emission | We use shaped near-infrared (NIR) pulses to control the generation of
coherent broadband ultraviolet (UV) radiation in an atomic resonance-mediated
(2+1) three-photon excitation. Experimental and theoretical results are
presented for phase controlling the total emitted UV yield in atomic sodium
(Na). Based on our confirmed understanding, we present a new simple scheme for
producing shaped femtosecond pulses in the UV/VUV spectral range using the
control over atomic resonance-mediated generation of third (or higher order)
harmonic.
| physics.atom-ph physics.chem-ph | we use shaped nearinfrared nir pulses to control the generation of coherent broadband ultraviolet uv radiation in an atomic resonancemediated 21 threephoton excitation experimental and theoretical results are presented for phase controlling the total emitted uv yield in atomic sodium na based on our confirmed understanding we present a new simple scheme for producing shaped femtosecond pulses in the uvvuv spectral range using the control over atomic resonancemediated generation of third or higher order harmonic | [['we', 'use', 'shaped', 'nearinfrared', 'nir', 'pulses', 'to', 'control', 'the', 'generation', 'of', 'coherent', 'broadband', 'ultraviolet', 'uv', 'radiation', 'in', 'an', 'atomic', 'resonancemediated', '21', 'threephoton', 'excitation', 'experimental', 'and', 'theoretical', 'results', 'are', 'presented', 'for', 'phase', 'controlling', 'the', 'total', 'emitted', 'uv', 'yield', 'in', 'atomic', 'sodium', 'na', 'based', 'on', 'our', 'confirmed', 'understanding', 'we', 'present', 'a', 'new', 'simple', 'scheme', 'for', 'producing', 'shaped', 'femtosecond', 'pulses', 'in', 'the', 'uvvuv', 'spectral', 'range', 'using', 'the', 'control', 'over', 'atomic', 'resonancemediated', 'generation', 'of', 'third', 'or', 'higher', 'order', 'harmonic']] | [-0.051949486167480546, 0.17373521357949356, -0.01925038422147433, 0.005201168461935595, 0.007929445281624793, -0.1142085552153488, 0.04872586576578518, 0.535496431911985, -0.184852620412906, -0.27866755139703553, -0.002856597448699176, -0.24292890492205818, -0.06290458655295272, 0.27210653175599875, -0.023911579207827646, 0.046544474077721436, -0.004942515588675936, -0.13032757672170797, 0.013633806829651197, -0.17687888448437056, 0.2468298802897334, 0.0513128835397462, 0.2697175192832947, 0.05827477527161439, 0.08762247107302149, 0.02679164909136792, -0.06778315478314956, -0.09121704921126365, -0.10952868333396812, 0.16395814909638526, 0.2117898795971026, 0.05031437017644445, 0.21695757821202277, -0.43101546610395114, -0.2526323921357592, 0.05256843214233716, 0.13800956252380275, 0.136489686469237, -0.13650432444022348, -0.25768766917288305, 0.016641987562179564, -0.14439834142259012, -0.1446214020376404, -0.050861164691547556, -0.02948261729752024, 0.07086739552517732, -0.29619962205489475, -0.0006871694202224413, -0.016259967007984717, 0.12077944125980139, -0.11314212108651797, -0.04083595169087251, -0.025003900037457547, 0.07143964318248133, -0.10760990047206481, 0.0062901416762421525, 0.13927972299202035, -0.12916053555905818, -0.13092669057349363, 0.3707348586494724, -0.15755858503747733, -0.004027364949385325, 0.15573287381014475, -0.18040493747840325, -0.06886297188544024, 0.23242882678906124, 0.12829239366731296, 0.1609723886474967, -0.10740491231282552, -0.03608056337339804, 0.009434810814758141, 0.28777200046771517, 0.1489713687884311, 0.17406670870259405, 0.2120820362182955, 0.18491622790073356, 0.014495428974429765, 0.13324030506424606, -0.16337983316431443, -0.04141630183594922, -0.28707266206542653, -0.07087035177275539, -0.14813475290934244, 0.06564766153072317, -0.034130309584046094, -0.12180638212710619, 0.4116540498272419, 0.11802973420048754, 0.1306961965591957, -0.03000251956284046, 0.3355207684636116, 0.1612589772111581, 0.01820009056478739, -0.014402449624612927, 0.3200694660345713, 0.14342923189202944, 0.1198706026111419, -0.2823484688376387, -0.042675884415706, 0.01892555125678579] |
710.1227 | A DC magnetic metamaterial | Electromagnetic metamaterials are a class of materials which have been
artificially structured on a subwavelength scale. They are currently the focus
of a great deal of interest because they allow access to previously
unrealisable properties like a negative refractive index. Most metamaterial
designs have so far been based on resonant elements, like split rings, and
research has concentrated on microwave frequencies and above. In this work, we
present the first experimental realisation of a non-resonant metamaterial
designed to operate at zero frequency. Our samples are based on a
recently-proposed template for an anisotropic magnetic metamaterial consisting
of an array of superconducting plates. Magnetometry experiments show a strong,
adjustable diamagnetic response when a field is applied perpendicular to the
plates. We have calculated the corresponding effective permeability, which
agrees well with theoretical predictions. Applications for this metamaterial
may include non-intrusive screening of weak DC magnetic fields.
| cond-mat.mtrl-sci | electromagnetic metamaterials are a class of materials which have been artificially structured on a subwavelength scale they are currently the focus of a great deal of interest because they allow access to previously unrealisable properties like a negative refractive index most metamaterial designs have so far been based on resonant elements like split rings and research has concentrated on microwave frequencies and above in this work we present the first experimental realisation of a nonresonant metamaterial designed to operate at zero frequency our samples are based on a recentlyproposed template for an anisotropic magnetic metamaterial consisting of an array of superconducting plates magnetometry experiments show a strong adjustable diamagnetic response when a field is applied perpendicular to the plates we have calculated the corresponding effective permeability which agrees well with theoretical predictions applications for this metamaterial may include nonintrusive screening of weak dc magnetic fields | [['electromagnetic', 'metamaterials', 'are', 'a', 'class', 'of', 'materials', 'which', 'have', 'been', 'artificially', 'structured', 'on', 'a', 'subwavelength', 'scale', 'they', 'are', 'currently', 'the', 'focus', 'of', 'a', 'great', 'deal', 'of', 'interest', 'because', 'they', 'allow', 'access', 'to', 'previously', 'unrealisable', 'properties', 'like', 'a', 'negative', 'refractive', 'index', 'most', 'metamaterial', 'designs', 'have', 'so', 'far', 'been', 'based', 'on', 'resonant', 'elements', 'like', 'split', 'rings', 'and', 'research', 'has', 'concentrated', 'on', 'microwave', 'frequencies', 'and', 'above', 'in', 'this', 'work', 'we', 'present', 'the', 'first', 'experimental', 'realisation', 'of', 'a', 'nonresonant', 'metamaterial', 'designed', 'to', 'operate', 'at', 'zero', 'frequency', 'our', 'samples', 'are', 'based', 'on', 'a', 'recentlyproposed', 'template', 'for', 'an', 'anisotropic', 'magnetic', 'metamaterial', 'consisting', 'of', 'an', 'array', 'of', 'superconducting', 'plates', 'magnetometry', 'experiments', 'show', 'a', 'strong', 'adjustable', 'diamagnetic', 'response', 'when', 'a', 'field', 'is', 'applied', 'perpendicular', 'to', 'the', 'plates', 'we', 'have', 'calculated', 'the', 'corresponding', 'effective', 'permeability', 'which', 'agrees', 'well', 'with', 'theoretical', 'predictions', 'applications', 'for', 'this', 'metamaterial', 'may', 'include', 'nonintrusive', 'screening', 'of', 'weak', 'dc', 'magnetic', 'fields']] | [-0.14365699482792668, 0.15190783161930901, -0.034888438061522, -0.011115783309274964, -0.14089508800092956, -0.14995632544962753, -0.015482835852187769, 0.4716087726683452, -0.17986018718140007, -0.2943413617667453, 0.08114726050788987, -0.28201034929731794, -0.14808629045648308, 0.26852838942331486, -0.007757897485561412, 0.07519472061961503, -0.01680988351782334, 0.0023960612955149906, -0.016042244289038252, -0.15808564376664058, 0.2863256568281815, 0.053229707119793725, 0.35700523981118, 0.045911796670407054, 0.07312062646037545, -0.04353800634171107, 0.029048173174518962, 0.08610751988880079, -0.08822983717806798, 0.10523161733972615, 0.2544225650229331, -0.028029121855145386, 0.2572094234798489, -0.4434868705940658, -0.2444683644792129, 0.05437140170251951, 0.1231682708041325, 0.13584140316454757, -0.11458253450370555, -0.2537557990619399, 0.07064192925483502, -0.12372145933452351, -0.11770596748924461, -0.09157481655169375, -0.011623348343057623, 0.039757399485799774, -0.2820511159647642, -0.0225121089732997, 0.031542356342783774, 0.09479093500252428, -0.05877693617427401, -0.14911765670724983, 0.059402500231075905, 0.06835369331188147, 0.01939424330143836, -0.023295199066593216, 0.14869549220170955, -0.09841976061399127, -0.11117624370381236, 0.36862142711380047, -0.04567598149158835, -0.16146290001684221, 0.18257957122545562, -0.13346868241526957, -0.06616857873661251, 0.1529934051575075, 0.22239310508353058, 0.1194523548257762, -0.14697492793975156, 0.09359839641697833, -0.06296176341330183, 0.19790822347256773, 0.08984120019454638, 0.06493356255814434, 0.2732967883011262, 0.1841923132073134, 0.03791081596462955, 0.14214324023703048, -0.07052759863115077, 0.025331199291194307, -0.23755080389051603, -0.11975851829067387, -0.20362639317353223, 0.03989579266675844, -0.04663251536980609, -0.26148640756206265, 0.378696281485388, 0.1586183586101658, 0.1611701829166248, -0.03086415746506175, 0.316492251923372, 0.07896387002928631, 0.1487773954547171, 0.019335730242189663, 0.3332960583478341, 0.17309115624119495, 0.12236653150797917, -0.18919517553636225, 0.019028224144130947, -0.03393627937626222] |
710.1228 | Axion-Dilaton Quantum String Cosmology for Flux Compactification and its
Symmetry Breaking | The Wheeler-De Witt equation of type IIB quantum string cosmology
compactified with constant internal H-fluxes on a 6-torus, whose volume modulus
is frozen, is solved under the WKB approximation. The spontaneous symmetry
breaking of the S-duality group by H-fluxes is also examined.
| hep-th gr-qc | the wheelerde witt equation of type iib quantum string cosmology compactified with constant internal hfluxes on a 6torus whose volume modulus is frozen is solved under the wkb approximation the spontaneous symmetry breaking of the sduality group by hfluxes is also examined | [['the', 'wheelerde', 'witt', 'equation', 'of', 'type', 'iib', 'quantum', 'string', 'cosmology', 'compactified', 'with', 'constant', 'internal', 'hfluxes', 'on', 'a', '6torus', 'whose', 'volume', 'modulus', 'is', 'frozen', 'is', 'solved', 'under', 'the', 'wkb', 'approximation', 'the', 'spontaneous', 'symmetry', 'breaking', 'of', 'the', 'sduality', 'group', 'by', 'hfluxes', 'is', 'also', 'examined']] | [-0.2179785632040529, 0.17415142385289073, -0.11265812240335868, 0.1088001337761636, -0.15550212537692415, -0.17577800432974028, -0.007451837630166362, 0.2700610346149742, -0.2624022119368116, -0.18535609588780927, 0.13216057331079528, -0.19506752039749353, -0.11535218505776443, 0.09252472110979613, -0.04921111310943074, -0.02008436873022999, -0.06208917225844094, 0.1002482742603336, -0.13222364440471643, -0.31840035487853346, 0.35688237322583083, 0.02865644678240642, 0.3410054485180548, -0.02674445639353334, 0.13784047100870384, -0.03845922182413882, 0.009926370832891692, -0.03507204429202136, -0.15951206544992774, 0.08357343056039619, 0.1595400450085955, 0.022763724261451335, 0.10321036187399711, -0.4448091373113649, -0.23151179642549582, 0.06434383041535814, 0.17195255562130893, 0.15063741756603122, -0.020752246993305606, -0.3183524269122808, 0.04777622311597779, -0.1357650558597275, -0.21970818445663012, -0.03854492945330484, 0.01946020689016829, -0.08455234724983927, -0.175207061992426, 0.14339487296127204, -0.059517210482486656, 0.03405292948619241, -0.08609713327937893, -0.032486163753284406, -0.05925104860216379, -0.04780891221681876, 0.1345954058037716, 0.0772047217247919, 0.14342012491709152, -0.14853434029611803, -0.08092562266669813, 0.44362456626480534, -0.07590257549392325, -0.2264279856435245, 0.0016508805343792552, -0.07986695401459223, -0.14043348401208364, 0.1428650550411216, -0.0010943373643039237, 0.12244940666659247, -0.08791070313946832, 0.2958806296810508, -0.049987472438563905, 0.1320218807751579, 0.15213558751912343, -0.01145652988149474, 0.18585873004936038, 0.08874902632530957, -0.013821114464441226, 0.09628034133458555, -0.008149306883015447, -0.1628492064108806, -0.4551188535988331, -0.09398058581254667, -0.1630603245659066, 0.20278995155933358, -0.2222382770186024, -0.18811447581364996, 0.3106480668343249, -0.026494387648112717, 0.08032876197692185, 0.030305130340691124, 0.14791111374229549, 0.11069897912620079, 0.08576853374307532, 0.027768165105953813, 0.2333442930664335, 0.2348048760211982, 0.02529754739121667, -0.3430257570331118, -0.07688865961418265, 0.27265317616097273] |
710.1229 | Photon pressure induced test mass deformation in gravitational-wave
detectors | A widely used assumption within the gravitational-wave community has so far
been that a test mass acts like a rigid body for frequencies in the detection
band, i.e. for frequencies far below the first internal resonance. In this
article we demonstrate that localized forces, applied for example by a photon
pressure actuator, can result in a non-negligible elastic deformation of the
test masses. For a photon pressure actuator setup used in the gravitational
wave detector GEO600 we measured that this effect modifies the standard
response function by 10% at 1 kHz and about 100% at 2.5 kHz.
| gr-qc | a widely used assumption within the gravitationalwave community has so far been that a test mass acts like a rigid body for frequencies in the detection band ie for frequencies far below the first internal resonance in this article we demonstrate that localized forces applied for example by a photon pressure actuator can result in a nonnegligible elastic deformation of the test masses for a photon pressure actuator setup used in the gravitational wave detector geo600 we measured that this effect modifies the standard response function by 10 at 1 khz and about 100 at 25 khz | [['a', 'widely', 'used', 'assumption', 'within', 'the', 'gravitationalwave', 'community', 'has', 'so', 'far', 'been', 'that', 'a', 'test', 'mass', 'acts', 'like', 'a', 'rigid', 'body', 'for', 'frequencies', 'in', 'the', 'detection', 'band', 'ie', 'for', 'frequencies', 'far', 'below', 'the', 'first', 'internal', 'resonance', 'in', 'this', 'article', 'we', 'demonstrate', 'that', 'localized', 'forces', 'applied', 'for', 'example', 'by', 'a', 'photon', 'pressure', 'actuator', 'can', 'result', 'in', 'a', 'nonnegligible', 'elastic', 'deformation', 'of', 'the', 'test', 'masses', 'for', 'a', 'photon', 'pressure', 'actuator', 'setup', 'used', 'in', 'the', 'gravitational', 'wave', 'detector', 'geo600', 'we', 'measured', 'that', 'this', 'effect', 'modifies', 'the', 'standard', 'response', 'function', 'by', '10', 'at', '1', 'khz', 'and', 'about', '100', 'at', '25', 'khz']] | [-0.09415270379245204, 0.17852522146206387, -0.03453175777559812, 0.059212375209023504, -0.04923942608317149, -0.09447210898488453, 0.04189190252194392, 0.36886772590199696, -0.216209393949968, -0.33881849229105354, 0.06879937798072844, -0.2613210230297649, -0.11145620211267594, 0.23414014128382443, -0.005885646761318227, 0.08195309993839756, 0.04041353026020926, 0.07034098586432405, -0.028867440627042933, -0.10299193871581984, 0.2679420298099825, 0.0942226414923969, 0.2623106728010264, 0.06095433986947401, 0.13287397415482813, 0.0032432812023619863, 0.061356091084554025, 0.004497220989355107, -0.13602097154726675, -0.0008976571837958601, 0.25774335700864953, 0.052788060468131885, 0.27331709366330165, -0.41222963614638936, -0.2053859065354024, 0.07364585315424603, 0.1012932668492851, 0.1253388857843412, -0.06239448649059866, -0.27719474471049366, 0.07483997449432452, -0.21062697137984418, -0.15531054823707366, 0.00952163764477237, 0.04583887766432209, -0.012982014969913, -0.24836797312324502, 0.09295539312141458, 0.04219695768251862, 0.04664422274019915, -0.08815917327577613, -0.09015215234590944, 0.022724961753953825, 0.056104256137821475, 0.029855236852752792, 0.06916103036306107, 0.22841054757519327, -0.09649285056733901, -0.0828734711004594, 0.3785709213914311, -0.12309682272259415, -0.1757090529234907, 0.17274515639712132, -0.17084118342699156, -0.09536646136572373, 0.1639584524691412, 0.21229158726895286, 0.08596922085649267, -0.1635767004720281, 0.04085551441788731, 0.02953374195143643, 0.2409551393855171, 0.16553083705696633, -0.0036349238866229647, 0.23110234828608245, 0.18703179385335444, 0.04362193645775011, 0.12639335438623525, -0.1766650569817224, 0.030548838903340175, -0.3021394427692921, -0.08917343736021328, -0.19323166044424145, 0.0412581735055056, -0.02982092036649023, -0.08968862445458539, 0.4054160484679274, 0.14931516616710835, 0.14416420471988925, 0.026026116602468428, 0.32808463117971864, 0.09330287250358918, 0.12466196032461815, 0.044804098295796776, 0.40958457693251177, 0.10721703662690658, 0.09217733006501935, -0.1688945993442645, 0.025599266512837913, -0.03925629993948663] |
710.123 | Density functional study of the electronic and vibrational properties of
TiOCl | We present the phonon spectrum of TiOCl computed using hybrid density
functional theory (DFT). A complete analysis of the spectrum is performed for
the space group Pmmn (high symmetry phase) and the space group P2_1/m (low
symmetry phase), which is the symmetry of the spin-Peierls phase. We show that
the nonlocal correlations present in the hybrid DFT approach are important for
understanding the electron-lattice interactions in TiOCl. The computed
frequencies compare well with those observed in Raman and infrared spectroscopy
experiments and we identify the origin of an anomalous phonon observed in Raman
spectroscopy. The relationship between relevant zone boundary phonons in the
high symmetry phase and the zone center counterparts in the P2_1/m symmetry
allow us to speculate about the origin of the spin-Peierls phonon.
| cond-mat.str-el | we present the phonon spectrum of tiocl computed using hybrid density functional theory dft a complete analysis of the spectrum is performed for the space group pmmn high symmetry phase and the space group p2_1m low symmetry phase which is the symmetry of the spinpeierls phase we show that the nonlocal correlations present in the hybrid dft approach are important for understanding the electronlattice interactions in tiocl the computed frequencies compare well with those observed in raman and infrared spectroscopy experiments and we identify the origin of an anomalous phonon observed in raman spectroscopy the relationship between relevant zone boundary phonons in the high symmetry phase and the zone center counterparts in the p2_1m symmetry allow us to speculate about the origin of the spinpeierls phonon | [['we', 'present', 'the', 'phonon', 'spectrum', 'of', 'tiocl', 'computed', 'using', 'hybrid', 'density', 'functional', 'theory', 'dft', 'a', 'complete', 'analysis', 'of', 'the', 'spectrum', 'is', 'performed', 'for', 'the', 'space', 'group', 'pmmn', 'high', 'symmetry', 'phase', 'and', 'the', 'space', 'group', 'p2_1m', 'low', 'symmetry', 'phase', 'which', 'is', 'the', 'symmetry', 'of', 'the', 'spinpeierls', 'phase', 'we', 'show', 'that', 'the', 'nonlocal', 'correlations', 'present', 'in', 'the', 'hybrid', 'dft', 'approach', 'are', 'important', 'for', 'understanding', 'the', 'electronlattice', 'interactions', 'in', 'tiocl', 'the', 'computed', 'frequencies', 'compare', 'well', 'with', 'those', 'observed', 'in', 'raman', 'and', 'infrared', 'spectroscopy', 'experiments', 'and', 'we', 'identify', 'the', 'origin', 'of', 'an', 'anomalous', 'phonon', 'observed', 'in', 'raman', 'spectroscopy', 'the', 'relationship', 'between', 'relevant', 'zone', 'boundary', 'phonons', 'in', 'the', 'high', 'symmetry', 'phase', 'and', 'the', 'zone', 'center', 'counterparts', 'in', 'the', 'p2_1m', 'symmetry', 'allow', 'us', 'to', 'speculate', 'about', 'the', 'origin', 'of', 'the', 'spinpeierls', 'phonon']] | [-0.1556474767544026, 0.1640971283723336, -0.1159042485066623, 0.06396049158767768, -0.052557154161308614, -0.06861086680169498, 0.09536518468355228, 0.4148430445689767, -0.2673433270778448, -0.2597410648780328, 0.04305328835829324, -0.31724855488181, -0.16890451113974292, 0.12358440767552349, 0.06920901082071756, 0.02402604128130608, -0.02475673318766649, -0.013345469478591686, -0.10731083615719976, -0.12876501288228032, 0.2732564901308497, 0.06159159314582154, 0.3391028263473085, 0.0573119133311723, 0.027537438826310257, 0.021307710051861783, 0.039648658340974224, -0.048757054015628194, -0.15419617434068525, 0.08472040688825978, 0.28598979393589413, -0.04956851176370586, 0.16178418857707005, -0.44821656965428874, -0.25646980483794496, 0.030456975235470703, 0.10934051877674869, 0.1289306640586195, -0.06767175644488325, -0.28422621245835983, 0.033743575784481235, -0.12954240669274614, -0.15369240091817957, -0.11425198026977125, -0.04831190278664941, -0.0610658817939342, -0.19294801874396703, 0.1375273811346334, -0.006291511109180098, 0.10759833696970923, -0.15582947389754867, -0.0856934766144684, -0.0959015558122672, 0.0960009653039927, 0.03248645533393654, 0.018408245662049877, 0.10676811817785843, -0.07769838546121878, -0.10067201382110989, 0.42540968116372824, -0.07288655322525532, -0.03788774948389757, 0.18367135513662583, -0.23005480387078095, -0.1599564911568508, 0.16725583528242413, 0.09840474019403614, 0.10267837236206682, -0.09469915783062341, 0.09225621463990556, 0.026272955925262992, 0.1726399557628033, -0.007703382523715614, 0.09923783126878478, 0.1824075424792393, 0.16120387295571467, 0.005639220550951976, 0.12740667363894836, -0.13120092809133763, -0.060311438682089956, -0.27820209159501014, -0.15654909704619693, -0.1858426852831765, -0.01756130178211375, -0.07422400887506748, -0.12900887538368502, 0.39837840546868625, 0.1327693014630183, 0.18831202194892935, -0.03994103640388136, 0.22994950670926345, 0.12972694659783018, 0.07916924682083643, 0.02407753418037106, 0.2812341780638293, 0.16949607844331435, 0.06665151187824825, -0.3492563199399719, -0.002957270925103258, 0.049990427563898265] |
710.1231 | Dynamics of vortex penetration, jumpwise instabilities and nonlinear
surface resistance of type-II superconductors in strong rf fields | We consider nonlinear dynamics of a single vortex in a superconductor in a
strong rf magnetic field $B_0\sin\omega t$. Using the London theory, we
calculate the dissipated power $Q(B_0,\omega)$, and the transient time scales
of vortex motion for the linear Bardeen-Stephen viscous drag force, which
results in unphysically high vortex velocities during vortex penetration
through the oscillating surface barrier. It is shown that penetration of a
single vortex through the ac surface barrier always involves penetration of an
antivortex and the subsequent annihilation of the vortex antivortex pairs.
Using the nonlinear Larkin-Ovchinnikov (LO) viscous drag force at higher vortex
velocities $v(t)$ results in a jump-wise vortex penetration through the surface
barrier and a significant increase of the dissipated power. We calculate the
effect of dissipation on nonlinear vortex viscosity $\eta(v)$ and the rf vortex
dynamics and show that it can also result in the LO-type behavior,
instabilities, and thermal localization of penetrating vortex channels. We
propose a thermal feedback model of $\eta(v)$, which not only results in the LO
dependence of $\eta(v)$ for a steady-state motion, but also takes into account
retardation of temperature field around rapidly accelerating vortex, and a
long-range interaction with the surface. We also address the effect of pinning
on the nonlinear rf vortex dynamics and the effect of trapped magnetic flux on
the surface resistance $R_s$ calculated as a function or rf frequency and
field. It is shown that trapped flux can result in a temperature-independent
residual resistance $R_i$ at low $T$, and a hysteretic low-field dependence of
$R_i(B_0)$, which can {\it decrease} as $B_0$ is increased, reaching a minimum
at $B_0$ much smaller than the thermodynamic critical field $B_c$.
| cond-mat.supr-con | we consider nonlinear dynamics of a single vortex in a superconductor in a strong rf magnetic field b_0sinomega t using the london theory we calculate the dissipated power qb_0omega and the transient time scales of vortex motion for the linear bardeenstephen viscous drag force which results in unphysically high vortex velocities during vortex penetration through the oscillating surface barrier it is shown that penetration of a single vortex through the ac surface barrier always involves penetration of an antivortex and the subsequent annihilation of the vortex antivortex pairs using the nonlinear larkinovchinnikov lo viscous drag force at higher vortex velocities vt results in a jumpwise vortex penetration through the surface barrier and a significant increase of the dissipated power we calculate the effect of dissipation on nonlinear vortex viscosity etav and the rf vortex dynamics and show that it can also result in the lotype behavior instabilities and thermal localization of penetrating vortex channels we propose a thermal feedback model of etav which not only results in the lo dependence of etav for a steadystate motion but also takes into account retardation of temperature field around rapidly accelerating vortex and a longrange interaction with the surface we also address the effect of pinning on the nonlinear rf vortex dynamics and the effect of trapped magnetic flux on the surface resistance r_s calculated as a function or rf frequency and field it is shown that trapped flux can result in a temperatureindependent residual resistance r_i at low t and a hysteretic lowfield dependence of r_ib_0 which can it decrease as b_0 is increased reaching a minimum at b_0 much smaller than the thermodynamic critical field b_c | [['we', 'consider', 'nonlinear', 'dynamics', 'of', 'a', 'single', 'vortex', 'in', 'a', 'superconductor', 'in', 'a', 'strong', 'rf', 'magnetic', 'field', 'b_0sinomega', 't', 'using', 'the', 'london', 'theory', 'we', 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710.1232 | A Canonical Quadratic Form on the Determinant Line of a Flat Vector
Bundle | We introduce and study a canonical quadratic form, called the torsion
quadratic form, of the determinant line of a flat vector bundle over a closed
oriented odd-dimensional manifold. This quadratic form caries less information
than the refined analytic torsion, introduced in our previous work, but is
easier to construct and closer related to the combinatorial Farber-Turaev
torsion. In fact, the torsion quadratic form can be viewed as an analytic
analogue of the Poincare-Reidemeister scalar product, introduced by Farber and
Turaev. Moreover, it is also closely related to the complex analytic torsion
defined by Cappell and Miller and we establish the precise relationship between
the two. In addition, we show that up to an explicit factor, which depends on
the Euler structure, and a sign the Burghelea-Haller complex analytic torsion,
whenever it is defined, is equal to our quadratic form. We conjecture a formula
for the value of the torsion quadratic form at the Farber-Turaev torsion and
prove some weak version of this conjecture. As an application we establish a
relationship between the Cappell-Miller and the combinatorial torsions.
| math.DG math.GT | we introduce and study a canonical quadratic form called the torsion quadratic form of the determinant line of a flat vector bundle over a closed oriented odddimensional manifold this quadratic form caries less information than the refined analytic torsion introduced in our previous work but is easier to construct and closer related to the combinatorial farberturaev torsion in fact the torsion quadratic form can be viewed as an analytic analogue of the poincarereidemeister scalar product introduced by farber and turaev moreover it is also closely related to the complex analytic torsion defined by cappell and miller and we establish the precise relationship between the two in addition we show that up to an explicit factor which depends on the euler structure and a sign the burgheleahaller complex analytic torsion whenever it is defined is equal to our quadratic form we conjecture a formula for the value of the torsion quadratic form at the farberturaev torsion and prove some weak version of this conjecture as an application we establish a relationship between the cappellmiller and the combinatorial torsions | [['we', 'introduce', 'and', 'study', 'a', 'canonical', 'quadratic', 'form', 'called', 'the', 'torsion', 'quadratic', 'form', 'of', 'the', 'determinant', 'line', 'of', 'a', 'flat', 'vector', 'bundle', 'over', 'a', 'closed', 'oriented', 'odddimensional', 'manifold', 'this', 'quadratic', 'form', 'caries', 'less', 'information', 'than', 'the', 'refined', 'analytic', 'torsion', 'introduced', 'in', 'our', 'previous', 'work', 'but', 'is', 'easier', 'to', 'construct', 'and', 'closer', 'related', 'to', 'the', 'combinatorial', 'farberturaev', 'torsion', 'in', 'fact', 'the', 'torsion', 'quadratic', 'form', 'can', 'be', 'viewed', 'as', 'an', 'analytic', 'analogue', 'of', 'the', 'poincarereidemeister', 'scalar', 'product', 'introduced', 'by', 'farber', 'and', 'turaev', 'moreover', 'it', 'is', 'also', 'closely', 'related', 'to', 'the', 'complex', 'analytic', 'torsion', 'defined', 'by', 'cappell', 'and', 'miller', 'and', 'we', 'establish', 'the', 'precise', 'relationship', 'between', 'the', 'two', 'in', 'addition', 'we', 'show', 'that', 'up', 'to', 'an', 'explicit', 'factor', 'which', 'depends', 'on', 'the', 'euler', 'structure', 'and', 'a', 'sign', 'the', 'burgheleahaller', 'complex', 'analytic', 'torsion', 'whenever', 'it', 'is', 'defined', 'is', 'equal', 'to', 'our', 'quadratic', 'form', 'we', 'conjecture', 'a', 'formula', 'for', 'the', 'value', 'of', 'the', 'torsion', 'quadratic', 'form', 'at', 'the', 'farberturaev', 'torsion', 'and', 'prove', 'some', 'weak', 'version', 'of', 'this', 'conjecture', 'as', 'an', 'application', 'we', 'establish', 'a', 'relationship', 'between', 'the', 'cappellmiller', 'and', 'the', 'combinatorial', 'torsions']] | [-0.18796723426838843, 0.06204517965495048, -0.08828295247377387, 0.10874223478550583, -0.1619093045966978, -0.13060886561388857, -0.01629082256949496, 0.30611489066618613, -0.2928930905048104, -0.26444788295012933, 0.054829321296527, -0.21266617999417473, -0.2343183669245577, 0.20871208985229076, -0.09078880804644406, -0.02273725141535631, -0.0185390174182817, 0.10428796558314399, -0.0988031340168017, -0.27254831827387493, 0.38640705989031443, 0.02924537364307834, 0.20866469785453345, 0.08905772106647063, 0.11445804036639888, 0.012054612447946578, -0.014060705605808688, 0.012616604263492828, -0.18669870590153664, 0.16522289418626104, 0.22162419366339173, 0.058723819108904694, 0.2021482483010161, -0.38351071784379837, -0.12237215239351251, 0.15622176477235966, 0.08639131949936178, 0.03363355470957748, -0.014180915472338554, -0.24498628074538775, 0.1101223462281833, -0.16296550963507517, -0.16029301060005038, -0.0713470386951391, 0.0323260145465276, -0.03441854748452061, -0.23631096128327506, 0.02155185903903584, 0.09314682507544927, 0.08615119307537446, -0.08541536984507572, -0.07649532270928223, -0.023207948770609565, 0.07494535630879302, 0.07029008632525802, 0.08989846689329514, 0.048322638154201125, -0.08764632282532409, -0.08889508989021375, 0.3406457257826395, -0.09317105176001211, -0.26818906186662356, 0.11863194477353674, -0.10069044114320656, -0.1323953697875399, 0.09264576616536441, 0.09856274368605394, 0.1571083242908634, -0.06582765654833377, 0.14135166199412197, -0.10641688250818815, 0.08694570433701677, 0.1236261365742519, -0.03859275141891477, 0.1521360856713727, 0.03064922519006777, 0.07255501071012568, 0.1908440352210122, 0.02182291566538785, -0.11442464944938648, -0.32858538088634953, -0.25174481098154755, -0.14341493992766516, 0.14955310456337, -0.10617476394440144, -0.19746642356374483, 0.3724375779488948, 0.04747774055222285, 0.220633969355867, 0.12070376197499726, 0.26732922079116533, 0.13482026787389112, 0.060073540194077825, 0.07087858464975638, 0.19649641057720607, 0.20303505440991929, 0.007954390478004626, -0.1781483662004272, 0.021409028434547884, 0.1438938053391724] |
710.1233 | Dynamics of Domain Walls for Split and Runaway Potentials | We demonstrate that the evolution of wall-like inhomogeneities in run-away
potentials, characteristic of dynamical supersymmetry breaking and moduli
stabilisation, is very similar to the evolution of domain wall networks
associated with double well potentials. Instabilities that would lead to a
rapid decay of domain walls can be significantly ameliorated by compensation
effects between a non-degeneracy of the vacua and a biased initial
distribution, which can be naturally expected in a wide class or particle
physics models that lead to out-of-equilibrium phase transitions. Within this
framework, it is possible to obtain domain walls that live long enough to be
relevant for the cosmic power spectrum and galaxy clustering, while being
compatible with the observed cosmic microwave background anisotropies.
| hep-ph | we demonstrate that the evolution of walllike inhomogeneities in runaway potentials characteristic of dynamical supersymmetry breaking and moduli stabilisation is very similar to the evolution of domain wall networks associated with double well potentials instabilities that would lead to a rapid decay of domain walls can be significantly ameliorated by compensation effects between a nondegeneracy of the vacua and a biased initial distribution which can be naturally expected in a wide class or particle physics models that lead to outofequilibrium phase transitions within this framework it is possible to obtain domain walls that live long enough to be relevant for the cosmic power spectrum and galaxy clustering while being compatible with the observed cosmic microwave background anisotropies | [['we', 'demonstrate', 'that', 'the', 'evolution', 'of', 'walllike', 'inhomogeneities', 'in', 'runaway', 'potentials', 'characteristic', 'of', 'dynamical', 'supersymmetry', 'breaking', 'and', 'moduli', 'stabilisation', 'is', 'very', 'similar', 'to', 'the', 'evolution', 'of', 'domain', 'wall', 'networks', 'associated', 'with', 'double', 'well', 'potentials', 'instabilities', 'that', 'would', 'lead', 'to', 'a', 'rapid', 'decay', 'of', 'domain', 'walls', 'can', 'be', 'significantly', 'ameliorated', 'by', 'compensation', 'effects', 'between', 'a', 'nondegeneracy', 'of', 'the', 'vacua', 'and', 'a', 'biased', 'initial', 'distribution', 'which', 'can', 'be', 'naturally', 'expected', 'in', 'a', 'wide', 'class', 'or', 'particle', 'physics', 'models', 'that', 'lead', 'to', 'outofequilibrium', 'phase', 'transitions', 'within', 'this', 'framework', 'it', 'is', 'possible', 'to', 'obtain', 'domain', 'walls', 'that', 'live', 'long', 'enough', 'to', 'be', 'relevant', 'for', 'the', 'cosmic', 'power', 'spectrum', 'and', 'galaxy', 'clustering', 'while', 'being', 'compatible', 'with', 'the', 'observed', 'cosmic', 'microwave', 'background', 'anisotropies']] | [-0.11415472243013036, 0.20475311341703448, -0.12346166447919403, 0.1129935232606024, -0.0963310502274519, -0.11224730795699084, -0.00807463857703484, 0.3665604749395966, -0.2888947171119288, -0.30900390423898005, 0.09801394959840064, -0.2125590036933621, -0.09232852818309051, 0.16302167575181517, -0.02078679399405662, 0.005519400772630659, 0.04449258153287009, -0.04937501691886757, -0.036216675594914705, -0.21092884770085096, 0.31116397639847976, 0.07176518925807925, 0.28500358934681386, 0.05943098539709408, 0.04814680423746761, -0.08655755996950862, 0.027575980385856975, 0.04322671135250702, -0.10761472227924472, 0.04980425413078071, 0.22127794066950124, 0.06494200505857539, 0.1761582153252302, -0.4399864591825276, -0.27738679482991624, 0.17401431926374888, 0.19906963366601202, 0.1514753228556922, -0.07602714331577827, -0.288183570238483, 0.08820660800760628, -0.15331089396316272, -0.14354873076479277, -0.0727314164237175, 0.007587087436173207, 0.026902000944659464, -0.2832119861880365, 0.12501849448129249, 0.031222082395653807, -0.02034956994506284, -0.07348149009128539, -0.024470913996044386, -0.04344876213039025, 0.07582406138276888, 0.0848056052902984, 0.0674013298464557, 0.16348766375524112, -0.17079167131485784, -0.09159930543695441, 0.39727971320733046, -0.08070521674648277, -0.15697598011575192, 0.21551091322659427, -0.1805607775090915, -0.10882895216982588, 0.1575504491248956, 0.1580253379801527, 0.08452126144184771, -0.13504854804422292, 0.0839297690246708, 0.06739582589023516, 0.16703637474630442, 0.06982971499992423, 0.046924273290549025, 0.29573438465436047, 0.15359259859666738, 0.07416060738838635, 0.10916725038073193, -0.05282715247380826, -0.09700708300657332, -0.31903428799257827, -0.08256588934753568, -0.1442326066426487, 0.07875479462070979, -0.09505169773357423, -0.19313555365253207, 0.3905461162615281, 0.12794780131811515, 0.23009320389097318, 0.0198515898689357, 0.22584105058151305, 0.05757829170021364, 0.10546253591330133, 0.020413890274034605, 0.25130492653379327, 0.10363381256003124, 0.11222092032185796, -0.2475159719116731, 0.036932979348219104, -0.017334208427729387] |
710.1234 | Hamming Distance for Conjugates | Let x, y be strings of equal length. The Hamming distance h(x,y) between x
and y is the number of positions in which x and y differ. If x is a cyclic
shift of y, we say x and y are conjugates. We consider f(x,y), the Hamming
distance between the conjugates xy and yx. Over a binary alphabet f(x,y) is
always even, and must satisfy a further technical condition. By contrast, over
an alphabet of size 3 or greater, f(x,y) can take any value between 0 and
|x|+|y|, except 1; furthermore, we can always assume that the smaller string
has only one type of letter.
| math.CO | let x y be strings of equal length the hamming distance hxy between x and y is the number of positions in which x and y differ if x is a cyclic shift of y we say x and y are conjugates we consider fxy the hamming distance between the conjugates xy and yx over a binary alphabet fxy is always even and must satisfy a further technical condition by contrast over an alphabet of size 3 or greater fxy can take any value between 0 and xy except 1 furthermore we can always assume that the smaller string has only one type of letter | [['let', 'x', 'y', 'be', 'strings', 'of', 'equal', 'length', 'the', 'hamming', 'distance', 'hxy', 'between', 'x', 'and', 'y', 'is', 'the', 'number', 'of', 'positions', 'in', 'which', 'x', 'and', 'y', 'differ', 'if', 'x', 'is', 'a', 'cyclic', 'shift', 'of', 'y', 'we', 'say', 'x', 'and', 'y', 'are', 'conjugates', 'we', 'consider', 'fxy', 'the', 'hamming', 'distance', 'between', 'the', 'conjugates', 'xy', 'and', 'yx', 'over', 'a', 'binary', 'alphabet', 'fxy', 'is', 'always', 'even', 'and', 'must', 'satisfy', 'a', 'further', 'technical', 'condition', 'by', 'contrast', 'over', 'an', 'alphabet', 'of', 'size', '3', 'or', 'greater', 'fxy', 'can', 'take', 'any', 'value', 'between', '0', 'and', 'xy', 'except', '1', 'furthermore', 'we', 'can', 'always', 'assume', 'that', 'the', 'smaller', 'string', 'has', 'only', 'one', 'type', 'of', 'letter']] | [-0.2251413423479313, 0.1599751653206546, -0.05204755518408049, 0.03526115164027682, -0.016315706562073456, -0.23945806522720625, 0.0706086233302596, 0.42405350719179424, -0.3453173593839719, -0.19756640805280767, 0.03307980529830924, -0.3309291881708694, -0.05379089009948075, 0.13566173338553025, -0.09702536275699025, -0.06318635171545403, 0.007632583534965913, 0.15667061042040586, -0.178408213279077, -0.3097344742666575, 0.32054365448254557, -0.0959331581723832, 0.16659243445666064, -0.018755648466980173, 0.1434593932303999, 0.06225316369950416, 0.058390173737314484, 0.02866865568350823, -0.16038439499381985, 0.041148035953353555, 0.23513473047032243, 0.11911728499191147, 0.24557740440414774, -0.30740968270138613, -0.1623201707189548, 0.2744281350324551, 0.1543204207727242, -0.03188854404170776, 0.05198239461030989, -0.1751776804914698, 0.1829213706209668, -0.11693139996246568, -0.039367773029066265, 0.03411640217527747, 0.16300841451932988, 0.05297000409059581, -0.3046663255297712, 0.0059440045484474725, 0.12022826601529406, 0.035791361802035855, 0.022193845272773786, -0.1949158357811116, -0.09081345845368646, 0.11030761330122395, 0.023266430767918272, 0.2043325888569511, 0.03478079500297705, -0.023060449842540992, -0.06739285436591931, 0.3517312883266381, -0.054868172934012756, -0.2597965234092304, 0.10546099735157831, -0.21481953494339473, -0.07964942767950041, 0.11318805690943486, 0.11907346140859383, 0.12633571298349472, -0.04585173140679087, 0.22704840188712946, -0.08516315728248584, 0.24305012042501142, 0.12670141289764572, 0.049934615629414716, 0.1946052997151301, 0.05254479116161487, 0.07275796681864276, 0.08985546355335308, -0.08122141857498459, 0.005765401101892903, -0.3396490204281041, -0.1674063739788142, -0.16883816038524466, 0.17792696241688516, -0.12086112080502236, -0.12017270135028021, 0.25242938240546553, 0.0940363892664512, 0.24170053764634455, 0.06621109116489866, 0.18627787583640643, 0.06127491132134483, -0.01226478588013422, 0.10204340617305466, 0.08091360014818963, 0.1262408259357991, -0.02766459677590146, -0.13557256410186666, 0.1140760303297568, 0.1258474405056664] |
710.1235 | Large diamagnetic persistent currents | In multichannel rings, evanescent modes will always co-exist with propagating
modes. The evanescent modes can carry a very large diamagnetic persistent
current that can oscillate with energy and are very sensitive to impurity
scattering. This provides a natural explanation for the large diamagnetic
persistent currents observed in experiments.
| cond-mat.mes-hall | in multichannel rings evanescent modes will always coexist with propagating modes the evanescent modes can carry a very large diamagnetic persistent current that can oscillate with energy and are very sensitive to impurity scattering this provides a natural explanation for the large diamagnetic persistent currents observed in experiments | [['in', 'multichannel', 'rings', 'evanescent', 'modes', 'will', 'always', 'coexist', 'with', 'propagating', 'modes', 'the', 'evanescent', 'modes', 'can', 'carry', 'a', 'very', 'large', 'diamagnetic', 'persistent', 'current', 'that', 'can', 'oscillate', 'with', 'energy', 'and', 'are', 'very', 'sensitive', 'to', 'impurity', 'scattering', 'this', 'provides', 'a', 'natural', 'explanation', 'for', 'the', 'large', 'diamagnetic', 'persistent', 'currents', 'observed', 'in', 'experiments']] | [-0.2525458900684801, 0.3131143214025845, -0.053522401676673326, 0.0967183861915449, -0.11273935988234977, -0.1905400449759327, -0.01632142546198641, 0.3653929339100917, -0.24107303435448557, -0.24959945872736475, 0.017384513140617248, -0.3348722365141536, -0.09776718555561577, 0.1921752040119221, 0.019784434446288895, -0.042363222766046725, 0.0861341454825985, -0.002838362279968957, -0.017113046604208648, -0.10528699556986491, 0.22185290923031667, 0.05790500064904336, 0.31492856728921953, 0.07885544917856653, 0.02774494931024189, -0.032950376757071353, 0.041181738798817, 0.07033666192243497, -0.041333143798965466, 0.06847597388453626, 0.34710571336715174, -0.0494630514876917, 0.19235524878604338, -0.5365932509303093, -0.1589674727486757, 0.08013231309208398, 0.20738013736505914, 0.1884245629577587, -0.0870198571428773, -0.26889238723864156, 0.050954004866071045, -0.09640226101813217, -0.1561125245061703, -0.16195880048326217, 0.03214177896734327, 0.009365243449186286, -0.28470741663477384, 0.11144946965214331, 0.043105627283997215, 0.0103520328605858, -0.0550527862603, -0.0749921087990515, -0.022677653590411257, 0.05313956906320527, 0.09373640377695362, -0.005394581523432862, 0.15799570234958082, -0.12114028265447511, -0.09781332360580564, 0.30789364548400044, -0.1506568837988501, -0.16789107536897063, 0.2424882632525017, -0.23671058076433837, -0.009475439505573982, 0.23493865854106843, 0.1416475448446969, 0.07536491433468957, -0.10604582922921206, 0.012688909025503866, -0.07738124121290942, 0.14450146222952753, 0.07695646871676824, 0.14182351103712185, 0.3586362477702399, 0.14300871941183382, 0.06098862523989131, 0.12741212121909484, -0.15220190452722213, -0.017699353862553835, -0.26631254772655666, -0.10198245956659473, -0.13845695368945599, 0.05682461764566445, 0.021081449056813046, -0.19497117147936174, 0.4142908010010918, 0.13636819032641748, 0.1873988073396807, -0.0319539774597312, 0.30826924725746113, 0.13542017297974476, 0.15191897956538014, 0.06592330498582062, 0.3106292391506334, 0.12801345433884612, 0.14716696906058738, -0.25644955900497735, -0.0032792610193913183, -0.06946571898879483] |
710.1236 | Detection of Spin Correlations in Optical Lattices by Light Scattering | We show that spin correlations of atoms in an optical lattice can be
reconstructed by coupling the system to the light, and by measuring
correlations between the emitted photons. This principle is the basis for a
method to characterize states in quantum computation and simulation with
optical lattices. As examples, we study the detection of spin correlations in a
quantum magnetic phase, and the characterization of cluster states.
| quant-ph | we show that spin correlations of atoms in an optical lattice can be reconstructed by coupling the system to the light and by measuring correlations between the emitted photons this principle is the basis for a method to characterize states in quantum computation and simulation with optical lattices as examples we study the detection of spin correlations in a quantum magnetic phase and the characterization of cluster states | [['we', 'show', 'that', 'spin', 'correlations', 'of', 'atoms', 'in', 'an', 'optical', 'lattice', 'can', 'be', 'reconstructed', 'by', 'coupling', 'the', 'system', 'to', 'the', 'light', 'and', 'by', 'measuring', 'correlations', 'between', 'the', 'emitted', 'photons', 'this', 'principle', 'is', 'the', 'basis', 'for', 'a', 'method', 'to', 'characterize', 'states', 'in', 'quantum', 'computation', 'and', 'simulation', 'with', 'optical', 'lattices', 'as', 'examples', 'we', 'study', 'the', 'detection', 'of', 'spin', 'correlations', 'in', 'a', 'quantum', 'magnetic', 'phase', 'and', 'the', 'characterization', 'of', 'cluster', 'states']] | [-0.14183796119109235, 0.21962582678315812, -0.0883358614930116, 0.03457942853385569, 0.05941245658323169, -0.09261245232568506, 0.0469001714099089, 0.4070303674568148, -0.2836724152610473, -0.3067126056891592, 0.04633299724424861, -0.3162822451661615, -0.11396427671698962, 0.21030417314785368, 0.04775002494716318, 0.04107570870067267, 0.06250663370113163, -0.018497707914588424, -0.09141603207749807, -0.18295284114120638, 0.29985756040824685, 0.03783070690834018, 0.267549222910448, 0.09355615936082733, 0.08634029567132101, 0.04755094660076258, 0.043608955737641626, 0.023220034864018944, -0.08300905234083235, 0.12128271628684803, 0.2160521521616508, 0.0574204545632443, 0.18454693427638097, -0.40690934879924445, -0.2068977710818324, 0.1130358035374871, 0.13420997021774597, 0.19680394640411525, -0.048511899405104274, -0.33541621206848715, 0.012308785246739931, -0.14713295020491762, -0.11885654942735153, -0.11805308070581626, 0.0008042175596689477, 0.013185138673768105, -0.2579751141944571, 0.06681880365153227, 0.04976011278546032, 0.07550699406248682, -0.04076835055671194, 0.003748036710449549, -0.013325407786075683, 0.10626582045327215, -0.04693249080617748, 0.0022582662641070783, 0.1072639690246433, -0.15596896666786908, -0.19041743510923184, 0.3674219894113348, -0.07331019480753799, -0.16768084387705826, 0.1497304846313508, -0.17940620497307358, -0.0699077286716441, 0.07665441240019658, 0.18747968996381936, 0.08987556243150988, -0.14254015934763148, 0.0069796875682454, -0.024751342257813495, 0.1840250716982957, 0.008585474056684795, 0.1417721667641993, 0.2471298839458648, 0.13138224405702204, 0.03223175381529419, 0.20375844962066314, -0.1306298420086558, -0.08503548237700563, -0.2748660854584373, -0.2046269303845132, -0.26626213683801536, 0.054469647971392775, -0.05157776475436335, -0.11569497757591307, 0.42547997111892877, 0.14129313237636404, 0.17807281716137796, -0.020260517978492903, 0.27433545692988176, 0.11772577542476081, 0.05743433244745521, 0.037487351893693864, 0.3046108040246455, 0.2056235242429573, 0.035067716175142455, -0.29272989217219325, 0.010304668695693287, 0.03498719072462443] |
710.1237 | On the computation of Galois representations associated to level one
modular forms | In this paper we explicitly compute mod-l Galois representations associated
to modular forms. To be precise, we look at cases with l<=23 and the modular
forms considered will be cusp forms of level 1 and weight up to 22. We present
the result in terms of polynomials associated to the projectivised
representations. As an application, we will improve a known result on Lehmer's
non-vanishing conjecture for Ramanujan's tau function.
| math.NT | in this paper we explicitly compute modl galois representations associated to modular forms to be precise we look at cases with l23 and the modular forms considered will be cusp forms of level 1 and weight up to 22 we present the result in terms of polynomials associated to the projectivised representations as an application we will improve a known result on lehmers nonvanishing conjecture for ramanujans tau function | [['in', 'this', 'paper', 'we', 'explicitly', 'compute', 'modl', 'galois', 'representations', 'associated', 'to', 'modular', 'forms', 'to', 'be', 'precise', 'we', 'look', 'at', 'cases', 'with', 'l23', 'and', 'the', 'modular', 'forms', 'considered', 'will', 'be', 'cusp', 'forms', 'of', 'level', '1', 'and', 'weight', 'up', 'to', '22', 'we', 'present', 'the', 'result', 'in', 'terms', 'of', 'polynomials', 'associated', 'to', 'the', 'projectivised', 'representations', 'as', 'an', 'application', 'we', 'will', 'improve', 'a', 'known', 'result', 'on', 'lehmers', 'nonvanishing', 'conjecture', 'for', 'ramanujans', 'tau', 'function']] | [-0.15567218116822018, 0.05441875190434444, -0.09369815416985015, 0.08313738580192506, -0.10300120063450026, -0.080697992566865, 0.0049135788340472445, 0.3221031965255953, -0.3192588589761568, -0.2705043964020476, 0.09134329994128126, -0.2680003743962911, -0.214755979012293, 0.21972190033968375, -0.08276845753678809, 0.012552217958306057, 0.027871384332631376, 0.08422763233302512, -0.12419262113879719, -0.31740374513564334, 0.3809915955407896, 0.05316499839334384, 0.14030553175109453, 0.07387770310152268, 0.07094347476959229, -0.010360326849943216, -0.00817235630761454, -0.10786616188907709, -0.15723913042819587, 0.1488890792226311, 0.3165916783521728, 0.08157027483769301, 0.16960641579614763, -0.3903514491259188, -0.0584732018330175, 0.16367503091105787, 0.1500079053896142, 0.03999467096898867, 0.015697088974959934, -0.22472739241936285, 0.13438665713655992, -0.19551508260917835, -0.21871260001553575, -0.13209492369028536, 0.018881990000659574, -0.02422605568300123, -0.26857937271774246, 0.03270455672527137, 0.06284916010833737, 0.07389573704289354, -0.09257131532860408, -0.16231171927158383, 0.05170610063182919, 0.11677971184658616, 0.023342220328640247, 0.07692228619598082, 0.04887231081670177, -0.1599624414044176, -0.10786271384205211, 0.3358178368189197, -0.08579459314342534, -0.21288811990424342, 0.15749313556791647, -0.1666443729908138, -0.23999771147804416, 0.08256932798152168, 0.17586861227544537, 0.10406917672388363, -0.047104400569114135, 0.07332639705113041, -0.08505856068939835, 0.09956038180077313, 0.16341182620575032, -0.0036881017242220864, 0.1371735806806364, 0.033931014316993344, 0.040827631361553096, 0.17899029543690814, -0.026856038258815912, 0.010863783823299234, -0.34656424447894096, -0.23582701181210036, -0.10928185184931626, 0.10335754763092035, -0.04337425907167768, -0.137512044319748, 0.42047546771557437, 0.10082825404200432, 0.2303660484165817, 0.1590002029594304, 0.18721633674441904, 0.18883181457657475, 0.11457675386328196, 0.039542398989146604, 0.13176741654161309, 0.16412437773660582, 0.02674019094421596, -0.10515574542333142, -0.0006401173351163827, 0.12773302379671647] |
710.1238 | Field-tunable magnetic phases in a semiconductor-based two-dimensional
Kondo lattice | We show the existence of intrinsic localized spins in mesoscopic
high-mobility GaAs/AlGaAs heterostructures. Non-equilibrium transport
spectroscopy reveals a quasi-regular distribution of the spins, and indicates
that the spins interact indirectly via the conduction electrons. The
interaction between spins manifests in characteristic zero-bias anomaly near
the Fermi energy, and indicates gate voltage-controllable magnetic phases in
high-mobility heterostructures. To address this issue further, we have also
designed electrostatically tunable Hall devices, that allow a probing of Hall
characteristics at the active region of the mesoscopic devices. We show that
the zero field Hall coefficient has an anomalous contribution, which can be
attributed to scattering by the localized spins. The anomalous contribution can
be destroyed by an increase in temperature, source drain bias, or field range.
| cond-mat.mes-hall | we show the existence of intrinsic localized spins in mesoscopic highmobility gaasalgaas heterostructures nonequilibrium transport spectroscopy reveals a quasiregular distribution of the spins and indicates that the spins interact indirectly via the conduction electrons the interaction between spins manifests in characteristic zerobias anomaly near the fermi energy and indicates gate voltagecontrollable magnetic phases in highmobility heterostructures to address this issue further we have also designed electrostatically tunable hall devices that allow a probing of hall characteristics at the active region of the mesoscopic devices we show that the zero field hall coefficient has an anomalous contribution which can be attributed to scattering by the localized spins the anomalous contribution can be destroyed by an increase in temperature source drain bias or field range | [['we', 'show', 'the', 'existence', 'of', 'intrinsic', 'localized', 'spins', 'in', 'mesoscopic', 'highmobility', 'gaasalgaas', 'heterostructures', 'nonequilibrium', 'transport', 'spectroscopy', 'reveals', 'a', 'quasiregular', 'distribution', 'of', 'the', 'spins', 'and', 'indicates', 'that', 'the', 'spins', 'interact', 'indirectly', 'via', 'the', 'conduction', 'electrons', 'the', 'interaction', 'between', 'spins', 'manifests', 'in', 'characteristic', 'zerobias', 'anomaly', 'near', 'the', 'fermi', 'energy', 'and', 'indicates', 'gate', 'voltagecontrollable', 'magnetic', 'phases', 'in', 'highmobility', 'heterostructures', 'to', 'address', 'this', 'issue', 'further', 'we', 'have', 'also', 'designed', 'electrostatically', 'tunable', 'hall', 'devices', 'that', 'allow', 'a', 'probing', 'of', 'hall', 'characteristics', 'at', 'the', 'active', 'region', 'of', 'the', 'mesoscopic', 'devices', 'we', 'show', 'that', 'the', 'zero', 'field', 'hall', 'coefficient', 'has', 'an', 'anomalous', 'contribution', 'which', 'can', 'be', 'attributed', 'to', 'scattering', 'by', 'the', 'localized', 'spins', 'the', 'anomalous', 'contribution', 'can', 'be', 'destroyed', 'by', 'an', 'increase', 'in', 'temperature', 'source', 'drain', 'bias', 'or', 'field', 'range']] | [-0.22665801121308127, 0.2344075016115652, -0.0452558584582265, 0.025685279825096573, -0.0032283082695269004, -0.18944237673488573, 0.04019636239447608, 0.37387273445483143, -0.2901825005779179, -0.31268347333359525, -0.03471733547171684, -0.3173555572539931, -0.12543230083755907, 0.22025710581120375, 0.02782793062700269, -0.03619829082967547, -0.05376668263045026, -0.06987293327522533, -0.05929020193984687, -0.1765102021040289, 0.2997163581178946, 0.033775056829691175, 0.3150297975531075, 0.1426849936861999, 0.07574950587155858, -0.006899359157096927, 0.1200567836214493, 0.04405833090223917, -0.08858650853310578, 0.02293414855375886, 0.2689579377576474, -0.16376806729344454, 0.20486548694410944, -0.4787635856679058, -0.20497426207033478, 0.00033772025045340624, 0.20092987127761106, 0.13950486528039796, -0.0943137970421751, -0.30144739536401943, 0.0182492041475768, -0.15560133967972625, -0.12877459082410792, -0.05773126761754596, -0.020953495129261437, -0.04963979638007477, -0.2247996214451647, 0.1406890315217121, 0.06362434592840027, 0.061879343506539376, -0.0616789379441539, -0.06868650393212229, -0.029316211796963844, 0.0980588628406962, 0.024244821910572246, 0.030625044031265546, 0.24722680592591442, -0.13685911255074681, -0.15969669212004153, 0.26125967886480617, -0.06733275273799653, -0.11926559634446128, 0.18176175665102778, -0.240970148854606, -0.049692667407415264, 0.15516035373103085, 0.16709511772968677, 0.07567381859961443, -0.1774261934650547, 0.09037545723821665, -0.013264729565660643, 0.16424664671956826, 0.014909655586399926, 0.10018468859067899, 0.3594841680724204, 0.15678177058424164, 0.07193226751737009, 0.15199806838962665, -0.16744144348052853, 0.0064501851130791795, -0.20980692105140628, -0.17876455503160027, -0.2502216196494041, 0.12453525691346182, -0.02401257751531316, -0.1635818378649637, 0.3997622172280056, 0.18331367989180503, 0.17253729992553712, -0.08612694119470482, 0.23932162843402324, 0.1507940578238463, 0.11097498362641631, 0.06087315141988116, 0.2549086664841185, 0.18386348844051542, 0.10653121416159807, -0.3498500695118938, 0.0695732304432649, -0.03382585260153907] |
710.1239 | On Connections between the Quantum and Hydrodynamical Pictures of Matter | We present a general, model-independent, quantum statistical treatment of the
connection between the quantum and hydrodynamical pictures of reservoir driven
macroscopic systems. This treatment is centred on the large scale properties of
locally conserved hydrodynamical observables and is designed to form a bridge
between quantum microdynamics and classical macroscopic continuum mechanics,
rather than a derivation of the latter from the former. The key assumptions on
which the treatment is based are hypotheses of chaoticity and local equilibrium
for the hydrodynamical fluctuations around nonequilibrium steady states,
together with an extension of Onsager's regrssion hypothesis to those states.
On this basis, we establish canonical generalisations of both the Onsager
reciprocity relations and the Onsager-Machlup fluctuation theory to
nonequilibrium steady states, and we show that the spatial correlations of the
hydrodynamical fluctuations are generically of long range in these states.
| math-ph cond-mat.stat-mech math.MP quant-ph | we present a general modelindependent quantum statistical treatment of the connection between the quantum and hydrodynamical pictures of reservoir driven macroscopic systems this treatment is centred on the large scale properties of locally conserved hydrodynamical observables and is designed to form a bridge between quantum microdynamics and classical macroscopic continuum mechanics rather than a derivation of the latter from the former the key assumptions on which the treatment is based are hypotheses of chaoticity and local equilibrium for the hydrodynamical fluctuations around nonequilibrium steady states together with an extension of onsagers regrssion hypothesis to those states on this basis we establish canonical generalisations of both the onsager reciprocity relations and the onsagermachlup fluctuation theory to nonequilibrium steady states and we show that the spatial correlations of the hydrodynamical fluctuations are generically of long range in these states | [['we', 'present', 'a', 'general', 'modelindependent', 'quantum', 'statistical', 'treatment', 'of', 'the', 'connection', 'between', 'the', 'quantum', 'and', 'hydrodynamical', 'pictures', 'of', 'reservoir', 'driven', 'macroscopic', 'systems', 'this', 'treatment', 'is', 'centred', 'on', 'the', 'large', 'scale', 'properties', 'of', 'locally', 'conserved', 'hydrodynamical', 'observables', 'and', 'is', 'designed', 'to', 'form', 'a', 'bridge', 'between', 'quantum', 'microdynamics', 'and', 'classical', 'macroscopic', 'continuum', 'mechanics', 'rather', 'than', 'a', 'derivation', 'of', 'the', 'latter', 'from', 'the', 'former', 'the', 'key', 'assumptions', 'on', 'which', 'the', 'treatment', 'is', 'based', 'are', 'hypotheses', 'of', 'chaoticity', 'and', 'local', 'equilibrium', 'for', 'the', 'hydrodynamical', 'fluctuations', 'around', 'nonequilibrium', 'steady', 'states', 'together', 'with', 'an', 'extension', 'of', 'onsagers', 'regrssion', 'hypothesis', 'to', 'those', 'states', 'on', 'this', 'basis', 'we', 'establish', 'canonical', 'generalisations', 'of', 'both', 'the', 'onsager', 'reciprocity', 'relations', 'and', 'the', 'onsagermachlup', 'fluctuation', 'theory', 'to', 'nonequilibrium', 'steady', 'states', 'and', 'we', 'show', 'that', 'the', 'spatial', 'correlations', 'of', 'the', 'hydrodynamical', 'fluctuations', 'are', 'generically', 'of', 'long', 'range', 'in', 'these', 'states']] | [-0.12010195671395837, 0.14928425927503078, -0.17142057605087757, 0.10701457442637012, -0.009421644780291793, -0.09841356460546034, 0.021066429550581446, 0.28395191037013906, -0.2638175967423355, -0.2622455490309221, 0.041669817134628404, -0.26718286820002557, -0.10776864390765481, 0.16348402404144188, 0.005563808627330753, 0.06710810354193467, 0.027083985245553777, -0.015845245161258122, -0.09059940660303897, -0.15942236723255038, 0.35183487453169243, 0.05578676944081534, 0.2941685901314486, 0.02927955096032854, 0.08600208232597009, -0.004512104972758714, -0.01340016903465285, 0.039773389433428424, -0.1713765715371397, 0.11272301188813906, 0.19660786288680837, 0.06038977249494672, 0.2594924191019827, -0.4747911323382355, -0.22750179273048965, 0.07542950872448273, 0.0841744709349073, 0.16461266869566102, 0.012084569111774565, -0.27839114366318374, 0.025409526898596702, -0.15351471526425003, -0.1372472547912313, -0.08583372127417105, 0.02421877661939053, 0.029520326294004917, -0.23584837280213833, 0.17334763374545967, 0.08955894342130598, 0.08808998466017381, -0.06020963072146782, -0.057512557400246696, -0.024900761381586027, 0.11026493653737228, 0.004014336153084193, -0.03454447239089538, 0.1552604965673869, -0.16243985756163432, -0.10258303434581167, 0.3625583302688456, -0.04068969525553043, -0.20317509421318605, 0.24181872929244386, -0.1612669513321153, -0.1419655362602926, 0.05436468149384703, 0.1277255992651643, 0.09420227776247296, -0.17093151438679985, 0.04611871279656257, -0.0674532569879803, 0.15067012893611237, 0.009843162904657862, 0.0691956972300164, 0.2518435759976616, 0.12346166935886312, 0.022113642960903235, 0.11187955698508578, -0.05648197185912389, -0.22620547603582963, -0.37290753791218295, -0.15573798641194384, -0.18979171064155012, 0.1331394928685554, -0.08392320889299085, -0.17045452265986516, 0.36405681574080306, 0.15729747104984093, 0.16156426217982217, 0.07965263240775504, 0.24741012339740442, 0.1267840651292799, 0.026289060677620855, 0.07031258356052122, 0.2588837361784981, 0.21188649409861468, 0.05683996221598457, -0.24629643728429287, 0.03438715718905715, 0.07317352209322374] |
710.124 | Electroformation in a flow chamber with solution exchange as a means of
preparation of flaccid giant vesicles | A recently described technique (Estes and Mayer, Biochim. Biophys. Acta 1712
(2005) 152--160) for the preparation of giant unilamellar vesicles (GUVs) in
solutions with high ionic strength is examined. By observing a series of
osmotic swellings followed by vesicle bursts upon a micropipette transfer of a
single POPC GUV from a sucrose solution into an isoosmolar glycerol solution, a
value for the permeability of POPC membrane for glycerol, P = (2.09+/-0.82) x
10^{-8} m/s, has been obtained. Based on this result, an alternative mechanism
is proposed for the observed exchange of vesicle interior. With modifications,
the method of Estes and Mayer is then applied to preparation of flaccid GUVs.
| cond-mat.soft | a recently described technique estes and mayer biochim biophys acta 1712 2005 152160 for the preparation of giant unilamellar vesicles guvs in solutions with high ionic strength is examined by observing a series of osmotic swellings followed by vesicle bursts upon a micropipette transfer of a single popc guv from a sucrose solution into an isoosmolar glycerol solution a value for the permeability of popc membrane for glycerol p 209082 x 108 ms has been obtained based on this result an alternative mechanism is proposed for the observed exchange of vesicle interior with modifications the method of estes and mayer is then applied to preparation of flaccid guvs | [['a', 'recently', 'described', 'technique', 'estes', 'and', 'mayer', 'biochim', 'biophys', 'acta', '1712', '2005', '152160', 'for', 'the', 'preparation', 'of', 'giant', 'unilamellar', 'vesicles', 'guvs', 'in', 'solutions', 'with', 'high', 'ionic', 'strength', 'is', 'examined', 'by', 'observing', 'a', 'series', 'of', 'osmotic', 'swellings', 'followed', 'by', 'vesicle', 'bursts', 'upon', 'a', 'micropipette', 'transfer', 'of', 'a', 'single', 'popc', 'guv', 'from', 'a', 'sucrose', 'solution', 'into', 'an', 'isoosmolar', 'glycerol', 'solution', 'a', 'value', 'for', 'the', 'permeability', 'of', 'popc', 'membrane', 'for', 'glycerol', 'p', '209082', 'x', '108', 'ms', 'has', 'been', 'obtained', 'based', 'on', 'this', 'result', 'an', 'alternative', 'mechanism', 'is', 'proposed', 'for', 'the', 'observed', 'exchange', 'of', 'vesicle', 'interior', 'with', 'modifications', 'the', 'method', 'of', 'estes', 'and', 'mayer', 'is', 'then', 'applied', 'to', 'preparation', 'of', 'flaccid', 'guvs']] | [-0.08781994741114502, 0.11294620830029509, -0.11318352519391248, -0.06390847903542006, 0.009861794121276874, -0.1358419087751267, 0.06535390575523846, 0.32928966035923135, -0.18984520055640203, -0.2815416373240833, 0.06186958972270636, -0.2488268362895514, -0.14306270861281797, 0.19109182220507556, -0.05891580165077288, 0.03715544903556852, 0.04579615740714452, -0.062163565451136, 0.03614728478714824, -0.18328313808888197, 0.17332400724542543, 0.03412015683716163, 0.273646166225752, 0.06828680363553129, 0.13939990683530384, -0.019427449858854882, 0.03902321743058005, 0.013263408220014893, -0.21774835062947553, 0.0668244359134965, 0.20668962891571796, 0.03442252346520455, 0.25269902021122664, -0.41957518085837364, -0.20844904083955604, 0.002806642988266853, 0.12888741970527917, 0.10164620047614265, -0.06859578746214258, -0.2905976895148902, 0.08049235690598905, -0.19112458494894852, -0.11855271918018563, -0.037425479269586504, 0.1041398668402018, 0.06313836315950119, -0.30298704362044543, 0.1481769317134212, 0.060846841195598245, 0.07480174500065354, -0.1350441117247101, -0.14728527908804467, -0.027328833566011432, 0.05773958747830385, 0.036996603676995546, 0.04836506497723839, 0.20185649341258866, -0.08303935815750335, -0.0688678327782187, 0.3118808043408745, -0.07472837591866174, -0.1288694336723823, 0.15279825014966683, -0.08188709186372133, -0.08176668419484766, 0.19764354993374303, 0.09352209909299675, 0.14494754377609262, -0.17922307178825855, 0.04957844521476755, -0.0336163161152329, 0.19350695207070273, 0.18093483488505277, -0.15066943764507484, 0.16114098412128022, 0.2244702850629647, -0.03750770650087641, 0.16024135848364005, -0.08455515489689648, -0.04156995234818449, -0.15087876852171925, -0.19618691755413936, -0.18152523565088183, 0.08310562258031076, -0.0737841076465534, -0.16838033759268, 0.3361200937864711, -0.010462674249608356, 0.1821323428929855, 0.008113049425166817, 0.1973136067793418, 0.03074355979109756, 0.04929632686980767, 0.009260978751206914, 0.23006672265294653, 0.17897112937106824, 0.16307475436210203, -0.26647810602802424, 0.07470675719042237, 0.109903238422703] |
710.1241 | The Debye-Waller factor of stabilized delta-Pu | The Debye-Waller factor has been calculated for stabilized delta-phase
plutonium with 5% aluminum. A quasi-harmonic Born-von Karman force model with
temperature dependent phonon frequencies was used to calculate the mean-square
thermal atomic displacement from absolute zero to 800 K. Implementation of the
observed anomalous softening of the long wavelength phonons with increasing
temperature cannot account for the softening of the measured thermal parameter
at high temperatures nor for its rather high value at low temperatures. The
implications for diffraction measurements on delta-phase stabilized plutonium
alloys are discussed.
| cond-mat.mtrl-sci | the debyewaller factor has been calculated for stabilized deltaphase plutonium with 5 aluminum a quasiharmonic bornvon karman force model with temperature dependent phonon frequencies was used to calculate the meansquare thermal atomic displacement from absolute zero to 800 k implementation of the observed anomalous softening of the long wavelength phonons with increasing temperature cannot account for the softening of the measured thermal parameter at high temperatures nor for its rather high value at low temperatures the implications for diffraction measurements on deltaphase stabilized plutonium alloys are discussed | [['the', 'debyewaller', 'factor', 'has', 'been', 'calculated', 'for', 'stabilized', 'deltaphase', 'plutonium', 'with', '5', 'aluminum', 'a', 'quasiharmonic', 'bornvon', 'karman', 'force', 'model', 'with', 'temperature', 'dependent', 'phonon', 'frequencies', 'was', 'used', 'to', 'calculate', 'the', 'meansquare', 'thermal', 'atomic', 'displacement', 'from', 'absolute', 'zero', 'to', '800', 'k', 'implementation', 'of', 'the', 'observed', 'anomalous', 'softening', 'of', 'the', 'long', 'wavelength', 'phonons', 'with', 'increasing', 'temperature', 'can', 'not', 'account', 'for', 'the', 'softening', 'of', 'the', 'measured', 'thermal', 'parameter', 'at', 'high', 'temperatures', 'nor', 'for', 'its', 'rather', 'high', 'value', 'at', 'low', 'temperatures', 'the', 'implications', 'for', 'diffraction', 'measurements', 'on', 'deltaphase', 'stabilized', 'plutonium', 'alloys', 'are', 'discussed']] | [-0.07963885299184105, 0.28727978075304156, -0.06559510331135243, 0.004969702610238032, -0.027534788985080508, -0.1496112575934438, 0.07117184821981937, 0.40930362113497476, -0.24563698571133005, -0.29140456480143423, 0.0605771191873249, -0.3238445905524052, 0.028021880134474486, 0.20072387330054137, 0.06785057302543217, 0.04982279443687399, -0.04228286544623023, 0.027137202458106913, -0.08820252659709447, -0.16957294061483646, 0.17537363562521271, 0.14510457980213687, 0.33849952235786157, 0.13145720434840769, 0.09771602032494477, -0.032450301289579576, 0.07098225583534011, 0.047996082196980504, -0.19732393098423595, -0.018603434309956025, 0.25935958171348, -0.12440696919326331, 0.1892493361056867, -0.41358894905583427, -0.2542961834697053, 0.05501889326577922, 0.07240003794537518, 0.11286854734432629, -0.013219291245067407, -0.1826633324380964, 0.07277868900299919, -0.14688225841117938, -0.19321438562209634, -0.1113357578922825, 0.040802581595595584, 0.0010182250460440462, -0.24119058563056486, 0.15989934840234293, -0.02954773542428897, 0.14570742931259287, -0.1568128236381612, -0.23593831806845794, -0.0682757525170349, 0.030923581845523917, 0.04352528439829422, 0.007608208127997138, 0.20883213239986534, -0.0390087886903943, -0.027457011011640796, 0.39539810738907283, -0.11317119959064505, -0.03049679758789187, 0.14870480917902154, -0.18463937056631866, -0.04378041937227615, 0.24169095908291638, 0.07201497761707287, 0.04536165640985763, -0.13386066612491215, 0.01515202460557868, 0.09406351568494839, 0.21544708940465088, 0.12658000873422928, 0.05404024508607108, 0.198596772282723, 0.19056494655061132, -0.07206872944847088, 0.1133698045993118, -0.15007889868469315, 0.0047036793019453235, -0.24241352611517702, -0.08313217289237813, -0.22275374884801832, 0.03238172234920388, -0.13016330760861325, -0.17399203772021626, 0.30603846892799164, 0.0994970572315982, 0.1349181889090687, -0.004915144477060742, 0.2559437350877984, 0.16181085585082078, 0.10093001297421077, 0.03683516930323094, 0.3306856258105571, 0.1940827117809518, 0.14915041521255096, -0.3257779515935743, 0.09437031009424986, 0.021736567265840924] |
710.1242 | What Have Spacetime, Shape and Symmetry to Do with Thermodynamics? | Some highly speculative and serendipitous ideas that might relate
thermodynamics, spacetime, shape and symmetry are brought together. A
hypothetical spacetime comprising a pointwise lattice with a fixed metric is
considered. If there were absolute symmetry between displacement and time it is
suggested that the velocity of light would be an integer conversion factor
between the units of these quantities. In the context of such outlandish
hypotheses the answer to the question posed would be 'everything'.
| physics.gen-ph | some highly speculative and serendipitous ideas that might relate thermodynamics spacetime shape and symmetry are brought together a hypothetical spacetime comprising a pointwise lattice with a fixed metric is considered if there were absolute symmetry between displacement and time it is suggested that the velocity of light would be an integer conversion factor between the units of these quantities in the context of such outlandish hypotheses the answer to the question posed would be everything | [['some', 'highly', 'speculative', 'and', 'serendipitous', 'ideas', 'that', 'might', 'relate', 'thermodynamics', 'spacetime', 'shape', 'and', 'symmetry', 'are', 'brought', 'together', 'a', 'hypothetical', 'spacetime', 'comprising', 'a', 'pointwise', 'lattice', 'with', 'a', 'fixed', 'metric', 'is', 'considered', 'if', 'there', 'were', 'absolute', 'symmetry', 'between', 'displacement', 'and', 'time', 'it', 'is', 'suggested', 'that', 'the', 'velocity', 'of', 'light', 'would', 'be', 'an', 'integer', 'conversion', 'factor', 'between', 'the', 'units', 'of', 'these', 'quantities', 'in', 'the', 'context', 'of', 'such', 'outlandish', 'hypotheses', 'the', 'answer', 'to', 'the', 'question', 'posed', 'would', 'be', 'everything']] | [-0.13447327283211052, 0.1885125575938366, -0.10439780870502866, 0.06332340054654491, -0.1280968538139368, -0.1602339803971149, 0.033571994762767, 0.37081536412006244, -0.30077819913827086, -0.3152930296051341, 0.10707844050921267, -0.2950037741102278, -0.1339198944089632, 0.1779331254168741, -0.08656276258438625, 0.009356471609223533, -2.6573154861359177e-05, 0.04364990868379135, -0.05420835589914507, -0.26457824773230665, 0.3107600042697143, 0.05721737674714343, 0.22334876229885864, 0.07785750671315032, 0.11311214397082457, -0.053371700533741226, -0.03344435726506384, 0.03997297849304773, -0.09916970157162822, 0.0940457869925209, 0.21941601861318624, 0.14475470443407223, 0.24689549673348665, -0.4165377777472541, -0.198261988909311, 0.11559802271123673, 0.09848247769892819, 0.07937721437397036, -0.05236142624886958, -0.27934114948368155, 0.062323953220117335, -0.10508675850940415, -0.1660171428292587, -0.07243018754053156, 0.052020177219969196, -0.03529675803273111, -0.2276623476976277, 0.06090583551889034, 0.0711318819002544, 0.04214631941018475, -0.0702230512774927, -0.07398978744104907, -0.0028186722318767695, 0.11251749339941386, 0.10623724546922932, 0.04480408035797646, 0.12119720337245413, -0.08336931088234524, -0.11997804810242677, 0.40553262603242657, -0.007255429471213673, -0.21642634677826553, 0.16148782047644458, -0.13479559356975998, -0.13220182158103264, 0.06682545082593286, 0.12442630066259487, 0.07040421375564325, -0.12971377225492048, 0.06861936089950865, -0.07529315658266077, 0.21557344267195142, 0.10843481016471176, 0.0434274235111032, 0.28408924953357595, 0.0961062694220124, 0.043831012287252655, 0.07561149514544555, -0.02962068171315902, -0.09639100317616721, -0.3269221482144014, -0.1793450608950209, -0.13911783748079795, 0.12154750991612673, -0.10005926129953288, -0.1334569339539755, 0.3105255143742102, 0.11123504340522797, 0.19357869450028078, -0.008552404561054867, 0.22728466358337854, 0.12305017804248712, 0.0564208833903477, 0.0780578671979743, 0.24487165720839166, 0.12710357540777908, 0.06706439339354434, -0.15395211256927233, 0.052098724764545225, 0.0655587052523687] |
710.1243 | A Detailed Study of 2S 0114+650 with the RXTE | We present the results of a detailed study of the high mass X-ray binary 2S
0114+650 made with the pointed instruments onboard the Rossi X-ray Timing
Explorer. The spectral and temporal behaviour of this source was examined over
the pulse, orbital, and super-orbital timescales, covering $\sim$2 cycles of
the 30.7 d super-orbital modulation. Marginal evidence for variability of the
power law photon index over the pulse period was identified, similar to that
observed from other X-ray pulsars. If this variability is real it can be
attributed to a varying viewing geometry of the accretion region with the spin
of the neutron star. Variability of the neutral hydrogen column density over
the orbital period was observed, which we attribute to the line of sight motion
of the neutron star through the dense circumstellar environment. A reduction in
the power law photon index was observed during the orbital maximum, which we
speculate is due to absorption effects as the neutron star passes behind a
heavily absorbing region near the base of the supergiant companion's wind. No
significant variability of the column density was observed over the
super-orbital period, indicating that variable obscuration by a precessing warp
in an accretion disc is not the mechanism behind the super-orbital modulation.
In contrast, a significant increase in the power law photon index was observed
during the super-orbital minimum. We conclude that the observed super-orbital
modulation is tied to variability in the mass accretion rate due to some as yet
unidentified mechanism.
| astro-ph | we present the results of a detailed study of the high mass xray binary 2s 0114650 made with the pointed instruments onboard the rossi xray timing explorer the spectral and temporal behaviour of this source was examined over the pulse orbital and superorbital timescales covering sim2 cycles of the 307 d superorbital modulation marginal evidence for variability of the power law photon index over the pulse period was identified similar to that observed from other xray pulsars if this variability is real it can be attributed to a varying viewing geometry of the accretion region with the spin of the neutron star variability of the neutral hydrogen column density over the orbital period was observed which we attribute to the line of sight motion of the neutron star through the dense circumstellar environment a reduction in the power law photon index was observed during the orbital maximum which we speculate is due to absorption effects as the neutron star passes behind a heavily absorbing region near the base of the supergiant companions wind no significant variability of the column density was observed over the superorbital period indicating that variable obscuration by a precessing warp in an accretion disc is not the mechanism behind the superorbital modulation in contrast a significant increase in the power law photon index was observed during the superorbital minimum we conclude that the observed superorbital modulation is tied to variability in the mass accretion rate due to some as yet unidentified mechanism | [['we', 'present', 'the', 'results', 'of', 'a', 'detailed', 'study', 'of', 'the', 'high', 'mass', 'xray', 'binary', '2s', '0114650', 'made', 'with', 'the', 'pointed', 'instruments', 'onboard', 'the', 'rossi', 'xray', 'timing', 'explorer', 'the', 'spectral', 'and', 'temporal', 'behaviour', 'of', 'this', 'source', 'was', 'examined', 'over', 'the', 'pulse', 'orbital', 'and', 'superorbital', 'timescales', 'covering', 'sim2', 'cycles', 'of', 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710.1244 | The Three-Dimensional Behavior of Spiral Shocks in Protoplanetary Disks | In this dissertation, I describe theoretical and numerical studies that
address the three-dimensional behavior of spiral shocks in protoplanetary disks
and the controversial topic of gas giant formation by disk instability. For
this work, I discuss characteristics of gravitational instabilities (GIs) in
bursting and asymptotic phase disks; outline a theory for the three-dimensional
structure of spiral shocks, called shock bores, for isothermal and adiabatic
gases; consider convection as a source of cooling for protoplanetary disks;
investigate the effects of opacity on disk cooling; use multiple analyses to
test for disk stability against fragmentation; test the sensitivity of GI
behavior to radiation boundary conditions; measure shock strengths and
frequencies in GI-bursting disks; evaluate temperature fluctuations in unstable
disks; and investigate whether spiral shocks can form chondrules when GIs
activate. The numerical methods developed for these studies are discussed,
including a radiation transport routine that explicitly couples the low and
high optical depth regimes and a routine that models ortho and parahydrogen.
Finally, I explore the hypothesis that chondrule formation and the FU Ori
phenomenon are driven by GI activation in dead zones.
| astro-ph | in this dissertation i describe theoretical and numerical studies that address the threedimensional behavior of spiral shocks in protoplanetary disks and the controversial topic of gas giant formation by disk instability for this work i discuss characteristics of gravitational instabilities gis in bursting and asymptotic phase disks outline a theory for the threedimensional structure of spiral shocks called shock bores for isothermal and adiabatic gases consider convection as a source of cooling for protoplanetary disks investigate the effects of opacity on disk cooling use multiple analyses to test for disk stability against fragmentation test the sensitivity of gi behavior to radiation boundary conditions measure shock strengths and frequencies in gibursting disks evaluate temperature fluctuations in unstable disks and investigate whether spiral shocks can form chondrules when gis activate the numerical methods developed for these studies are discussed including a radiation transport routine that explicitly couples the low and high optical depth regimes and a routine that models ortho and parahydrogen finally i explore the hypothesis that chondrule formation and the fu ori phenomenon are driven by gi activation in dead zones | [['in', 'this', 'dissertation', 'i', 'describe', 'theoretical', 'and', 'numerical', 'studies', 'that', 'address', 'the', 'threedimensional', 'behavior', 'of', 'spiral', 'shocks', 'in', 'protoplanetary', 'disks', 'and', 'the', 'controversial', 'topic', 'of', 'gas', 'giant', 'formation', 'by', 'disk', 'instability', 'for', 'this', 'work', 'i', 'discuss', 'characteristics', 'of', 'gravitational', 'instabilities', 'gis', 'in', 'bursting', 'and', 'asymptotic', 'phase', 'disks', 'outline', 'a', 'theory', 'for', 'the', 'threedimensional', 'structure', 'of', 'spiral', 'shocks', 'called', 'shock', 'bores', 'for', 'isothermal', 'and', 'adiabatic', 'gases', 'consider', 'convection', 'as', 'a', 'source', 'of', 'cooling', 'for', 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710.1245 | Spectroscopy of strontium Rydberg states using electromagnetically
induced transparency | We report on the all-optical detection of Rydberg states in a effusive atomic
beam of strontium atoms using electromagnetically induced transparency (EIT).
Using narrow-linewidth CW lasers we obtain an EIT linewidth of 5 MHz. To
illustrate the high spectroscopic resolution offered by this method, we have
measured isotope shifts of the 5s18d ^1D_2 and 5s19s ^1S_0 Rydberg states. This
technique could be applied to high-resolution, non-destructive measurements of
ultra-cold Rydberg gases and plasmas.
| quant-ph | we report on the alloptical detection of rydberg states in a effusive atomic beam of strontium atoms using electromagnetically induced transparency eit using narrowlinewidth cw lasers we obtain an eit linewidth of 5 mhz to illustrate the high spectroscopic resolution offered by this method we have measured isotope shifts of the 5s18d 1d_2 and 5s19s 1s_0 rydberg states this technique could be applied to highresolution nondestructive measurements of ultracold rydberg gases and plasmas | [['we', 'report', 'on', 'the', 'alloptical', 'detection', 'of', 'rydberg', 'states', 'in', 'a', 'effusive', 'atomic', 'beam', 'of', 'strontium', 'atoms', 'using', 'electromagnetically', 'induced', 'transparency', 'eit', 'using', 'narrowlinewidth', 'cw', 'lasers', 'we', 'obtain', 'an', 'eit', 'linewidth', 'of', '5', 'mhz', 'to', 'illustrate', 'the', 'high', 'spectroscopic', 'resolution', 'offered', 'by', 'this', 'method', 'we', 'have', 'measured', 'isotope', 'shifts', 'of', 'the', '5s18d', '1d_2', 'and', '5s19s', '1s_0', 'rydberg', 'states', 'this', 'technique', 'could', 'be', 'applied', 'to', 'highresolution', 'nondestructive', 'measurements', 'of', 'ultracold', 'rydberg', 'gases', 'and', 'plasmas']] | [-0.09711591112361827, 0.2829983156835611, -0.0245420469076071, -0.023726763528391297, 0.05971637945359861, -0.15796807213542116, 0.12078097276881494, 0.5182523279332779, -0.189651572870248, -0.25263572043188337, -0.05369891566191603, -0.2572377372769193, 0.009459266789965856, 0.25536421143358023, 0.023828720509953483, 0.09301260801714281, 0.08772308133299869, -0.08052692688266996, 0.007913885756172764, -0.12475100088156235, 0.2505441971982396, 0.1050132901512716, 0.29662395344758535, 0.1189381051415079, 0.12954425647146475, -0.07165039003118348, 0.08402785766069633, -0.13319705225999506, -0.13248958657692436, 0.14508935700754413, 0.2982245742107256, 0.04972647663704317, 0.20766915687897675, -0.4320146274739798, -0.19908437599808398, 0.05736054068195148, 0.15834635746678416, 0.24021425710099054, -0.1113900295737475, -0.4349244066422254, -0.05489380344171339, -0.18951701473864452, -0.12012212578548302, -0.1620192432146467, -0.037565129349978875, 0.04879643436206479, -0.2686137752082776, 0.0011668790190834815, -0.025148050590667506, 0.19439555776738365, -0.09861435175506057, -0.06782976938018077, 0.12400221953891598, -0.04025395018455218, -0.169502630226419, -0.021885718989618858, 0.19920778342089812, -0.07322238324682268, -0.1411288956796724, 0.40042042141963896, -0.18949688694925165, 0.00967855848581858, 0.17008261432425237, -0.19219316220120855, -0.01782795851664867, 0.15736393588529507, 0.12890793047976537, 0.13743184491808355, -0.09829857293516397, -0.005521363324590657, -0.03512995198211619, 0.24601632412227895, 0.24512941294520255, 0.16236880135683107, 0.1483322103232355, 0.17019294242827143, 0.03297065888059286, 0.1553689537038633, -0.19836904603371422, 0.06848298493956387, -0.16892317881886387, -0.1402021565304046, -0.17511639524985786, 0.08552411536220461, 0.042870520575145836, -0.0886699657388766, 0.3732190803742745, 0.15472080023355886, 0.16261718186392435, -0.1943167558359638, 0.36874858749059725, 0.14029672575793165, 0.01683731300757975, -0.06443896223331841, 0.3096469165888471, 0.26139609993461677, 0.08358737126543699, -0.3618651364313465, -0.02428202979056768, -0.008204250373470952] |
710.1246 | Growth rates of the Weibel and tearing mode instabilities in a
relativistic pair plasma | We present an algorithm for solving the linear dispersion relation in an
inhomogeneous, magnetised, relativistic plasma. The method is a generalisation
of a previously reported algorithm that was limited to the homogeneous case.
The extension involves projecting the spatial dependence of the perturbations
onto a set of basis functions that satisfy the boundary conditions (spectral
Galerkin method). To test this algorithm in the homogeneous case, we derive an
analytical expression for the growth rate of the Weibel instability for a
relativistic Maxwellian distribution and compare it with the numerical results.
In the inhomogeneous case, we present solutions of the dispersion relation for
the relativistic tearing mode, making no assumption about the thickness of the
current sheet, and check the numerical method against the analytical
expression.
| astro-ph | we present an algorithm for solving the linear dispersion relation in an inhomogeneous magnetised relativistic plasma the method is a generalisation of a previously reported algorithm that was limited to the homogeneous case the extension involves projecting the spatial dependence of the perturbations onto a set of basis functions that satisfy the boundary conditions spectral galerkin method to test this algorithm in the homogeneous case we derive an analytical expression for the growth rate of the weibel instability for a relativistic maxwellian distribution and compare it with the numerical results in the inhomogeneous case we present solutions of the dispersion relation for the relativistic tearing mode making no assumption about the thickness of the current sheet and check the numerical method against the analytical expression | [['we', 'present', 'an', 'algorithm', 'for', 'solving', 'the', 'linear', 'dispersion', 'relation', 'in', 'an', 'inhomogeneous', 'magnetised', 'relativistic', 'plasma', 'the', 'method', 'is', 'a', 'generalisation', 'of', 'a', 'previously', 'reported', 'algorithm', 'that', 'was', 'limited', 'to', 'the', 'homogeneous', 'case', 'the', 'extension', 'involves', 'projecting', 'the', 'spatial', 'dependence', 'of', 'the', 'perturbations', 'onto', 'a', 'set', 'of', 'basis', 'functions', 'that', 'satisfy', 'the', 'boundary', 'conditions', 'spectral', 'galerkin', 'method', 'to', 'test', 'this', 'algorithm', 'in', 'the', 'homogeneous', 'case', 'we', 'derive', 'an', 'analytical', 'expression', 'for', 'the', 'growth', 'rate', 'of', 'the', 'weibel', 'instability', 'for', 'a', 'relativistic', 'maxwellian', 'distribution', 'and', 'compare', 'it', 'with', 'the', 'numerical', 'results', 'in', 'the', 'inhomogeneous', 'case', 'we', 'present', 'solutions', 'of', 'the', 'dispersion', 'relation', 'for', 'the', 'relativistic', 'tearing', 'mode', 'making', 'no', 'assumption', 'about', 'the', 'thickness', 'of', 'the', 'current', 'sheet', 'and', 'check', 'the', 'numerical', 'method', 'against', 'the', 'analytical', 'expression']] | [-0.12132334207184613, 0.0357819392712554, -0.11572293576598168, 0.06784975422546267, -0.0661207475643605, -0.08581891248375177, -0.003256264217197895, 0.34053980322554706, -0.22842123541049658, -0.2576893211379647, 0.0809959817836061, -0.2299635986983776, -0.11805498088896274, 0.23296444322355092, 0.026085536243394016, 0.07809847379708662, 0.04814569661766291, -0.005925927210599184, -0.071893381126225, -0.1968417558223009, 0.33764601123146715, 0.09650659889541566, 0.31502610360085964, 0.008548374895006419, 0.08874636447802187, -0.017067420843988657, -0.03133919732645154, 0.03893046800047159, -0.16985054486896842, 0.08001002169027925, 0.16057684301992411, 0.10483505597803741, 0.2615541949160397, -0.42871057767421006, -0.19835497786104678, 0.0419871706739068, 0.14075120784342288, 0.17202390529587866, -0.07284193687140941, -0.23126869911141693, 0.07149971872195601, -0.18478516172617673, -0.21414521269779652, -0.029547343619167804, 0.01672987349703908, 0.01818859083065763, -0.3274229800477624, 0.12673214849084616, 0.07325464399904012, 0.030812931165099144, -0.14732980750873684, -0.061121084693819286, 0.00733074544928968, 0.05240366154909134, 0.04923140603117645, 0.006087741307914257, 0.07499992062151432, -0.12508127197436988, -0.058346711257472636, 0.37107481018453836, -0.07900087972171604, -0.26451676222681997, 0.16092070598155261, -0.1656226612739265, -0.08695858038775622, 0.1353441898263991, 0.14560446311486885, 0.14623254172632005, -0.13306321126967668, 0.08051171400677412, -0.07711550607066602, 0.14054985182918608, 0.07802971662580967, -0.03679362304601818, 0.1513575382232666, 0.16781315342523156, 0.05271708919852972, 0.16100628078822046, -0.07462891837023199, -0.0737496931143105, -0.33414231529831884, -0.15195626847073435, -0.1624867813240271, 0.016902369631454348, -0.11976861457969062, -0.20278091593831776, 0.37494797679036856, 0.16566825792938472, 0.13995354785770178, 0.060000863492488864, 0.3117913545668125, 0.18686805601336529, 0.0019448615275323392, 0.12534686337038875, 0.24733958975970746, 0.19392787344008683, 0.08466401639021934, -0.27163399364892393, 0.053561176635324954, 0.10895967097952962] |
710.1247 | Quasiparticle evolution and pseudogap formation in V2O3: An infrared
spectroscopy study | The infrared conductivity of V2O3 is measured in the whole phase diagram.
Quasiparticles appear above the Neel temperature TN and eventually disappear
further enhancing the temperature, leading to a pseudogap in the optical
spectrum above 425 K. Our calculations demonstrate that this loss of coherence
can be explained only if the temperature dependence of lattice parameters is
considered. V2O3 is therefore effectively driven from the metallic to the
insulating side of the Mott transition as the temperature is increased.
| cond-mat.str-el cond-mat.mtrl-sci | the infrared conductivity of v2o3 is measured in the whole phase diagram quasiparticles appear above the neel temperature tn and eventually disappear further enhancing the temperature leading to a pseudogap in the optical spectrum above 425 k our calculations demonstrate that this loss of coherence can be explained only if the temperature dependence of lattice parameters is considered v2o3 is therefore effectively driven from the metallic to the insulating side of the mott transition as the temperature is increased | [['the', 'infrared', 'conductivity', 'of', 'v2o3', 'is', 'measured', 'in', 'the', 'whole', 'phase', 'diagram', 'quasiparticles', 'appear', 'above', 'the', 'neel', 'temperature', 'tn', 'and', 'eventually', 'disappear', 'further', 'enhancing', 'the', 'temperature', 'leading', 'to', 'a', 'pseudogap', 'in', 'the', 'optical', 'spectrum', 'above', '425', 'k', 'our', 'calculations', 'demonstrate', 'that', 'this', 'loss', 'of', 'coherence', 'can', 'be', 'explained', 'only', 'if', 'the', 'temperature', 'dependence', 'of', 'lattice', 'parameters', 'is', 'considered', 'v2o3', 'is', 'therefore', 'effectively', 'driven', 'from', 'the', 'metallic', 'to', 'the', 'insulating', 'side', 'of', 'the', 'mott', 'transition', 'as', 'the', 'temperature', 'is', 'increased']] | [-0.1413440224066188, 0.27143081301186656, -0.085063538531761, 0.016475636039011747, -0.027141467464757683, -0.12393692333274815, 0.13189948996222473, 0.39262864528860475, -0.2857917894290972, -0.24901071134984162, 0.06556036542287638, -0.3367405389022978, -0.09467730117089386, 0.14288646847457637, 0.016927058949972255, -0.029609962204700378, -0.08963288728713611, 0.01365761096954723, -0.14137986928071308, -0.2244963055724113, 0.2567916616938914, 0.04075870573921483, 0.29410506158925687, 0.1652121457589578, -0.007892998766531295, -0.05229562144915137, 0.13751113131830964, 0.04054810337227168, -0.13290305295710442, -0.031070444444076546, 0.31031774564445774, -0.06493275999857843, 0.16643701182365936, -0.33882348239421844, -0.2584934141752133, 0.0298421832267195, 0.15912617916312022, 0.10963286567314327, -0.008388235376664449, -0.2576690049653378, 0.02788555331504609, -0.1321781851746189, -0.1413881026276187, -0.0751825138319378, -0.03738515517568287, -0.04328162033299479, -0.2321343918602112, 0.1463553220316579, 0.0894616657066383, 0.07140329473309699, -0.10236961843705253, -0.1359674470393058, -0.13276407086950598, 0.09513287362347864, 0.029019015239952487, 0.09591502855425771, 0.18812600214364408, -0.12398203025289069, -0.03671928363722525, 0.3526501818972675, -0.0762525215226261, 0.014638632653823381, 0.15021634443745582, -0.2261611020098193, -0.009550322383595041, 0.23808408658833632, 0.06993237951228136, 0.052164630362428015, -0.1182342914325079, 0.07387378244716793, 0.004822922988405711, 0.23976488253455372, 0.026805547879466526, 0.08215002638370364, 0.2600689378015909, 0.22774771593225224, 0.022610447723182697, 0.19240251606141653, -0.0979891918434561, -0.048527990797935405, -0.2510931033263855, -0.1411453862497701, -0.25361920244803154, 0.04334571243770703, -0.09785660055058543, -0.18495857293564308, 0.3774401403586321, 0.20532154136254818, 0.237695598526846, -0.05582847692591103, 0.2586733977593293, 0.1739133729870561, 0.0866798200066897, 0.06187960280317672, 0.27514214201865694, 0.1343177876352698, 0.1524121281631951, -0.3243970042271422, 0.06440020103782675, 0.0059518332923232] |
710.1248 | Realization of abstract convex geometries by point configurations, Part
1 | The Edelman-Jamison problem is to characterize those abstract convex
geometries that are representable by a set of points in the plane. We show that
some natural modification of the Edelman-Jamison problem is equivalent to the
well known NP-hard order type problem.
| math.CO | the edelmanjamison problem is to characterize those abstract convex geometries that are representable by a set of points in the plane we show that some natural modification of the edelmanjamison problem is equivalent to the well known nphard order type problem | [['the', 'edelmanjamison', 'problem', 'is', 'to', 'characterize', 'those', 'abstract', 'convex', 'geometries', 'that', 'are', 'representable', 'by', 'a', 'set', 'of', 'points', 'in', 'the', 'plane', 'we', 'show', 'that', 'some', 'natural', 'modification', 'of', 'the', 'edelmanjamison', 'problem', 'is', 'equivalent', 'to', 'the', 'well', 'known', 'nphard', 'order', 'type', 'problem']] | [-0.11079668927078064, 0.02184552811563779, -0.008078547719961558, 0.150371902437212, -0.12575402316183615, -0.08335259565128347, 0.00499340003499618, 0.3840593248605728, -0.3868229719690787, -0.2707857618657633, 0.13345106011435676, -0.28064191601095867, -0.2088805981553518, 0.19888544307114223, -0.13797799060837582, 0.0686492676106401, 0.04085533729252907, 0.05479844735983091, -0.07291347138249339, -0.2666393854440405, 0.37629485884920144, -0.05977602159747711, 0.19926122091232967, 0.04858198863430283, 0.07644506414325382, -0.01947899537686354, 0.04074191672202104, 0.14701499505780447, -0.12154226448836151, 0.11210429651411967, 0.3016392630644334, 0.1709239067008289, 0.2539224507143864, -0.37174543843437463, -0.17478264242601702, 0.16828748340515468, 0.0895302604095867, 0.09775187760495986, 0.020334781744541265, -0.20284543367914665, 0.1386749649850222, -0.06682691250282985, -0.14719252102077007, -0.010435217904906051, 0.008521262938395524, 0.012583632117662674, -0.26971923445279783, 0.015965616808105737, 0.09422093599091451, -0.004560913854780106, -0.08463020406615658, -0.0967018218913999, 0.016447710924041577, 0.06399687713919541, 0.0011967334826178371, 0.07923239818177162, 0.06102089736706171, -0.0712630274430968, -0.1339410662603302, 0.4553673381033616, 0.030633419665555734, -0.26353906526063114, 0.17930144300827613, -0.09141360534928165, -0.11870173330251606, 0.13802006998314306, 0.12593312685688338, 0.19384339050604746, -0.1373806924153215, 0.141435647646013, -0.16421101359316173, 0.11849086769880393, 0.06963145970486295, 0.008746646105861053, 0.12317232723132922, 0.12967438355852395, 0.15473143380278578, 0.223332426415231, 0.030343022125844773, -0.0865645873097655, -0.30453099857251614, -0.08893566960707688, -0.18230671093214112, 0.021153702920016188, -0.06019679896342449, -0.16984401615814138, 0.3605861961841583, 0.1163453767553736, 0.1874557155638169, 0.08988478008466654, 0.2426844724955467, 0.11862170139591818, 0.020803275589759532, 0.07925299894160186, 0.20996716605776994, 0.11886596579988225, 0.012693643760986818, -0.18639899888195288, 0.05051118450669142, 0.13992306587692255] |
710.1249 | Dynamically correlated regions and configurational entropy in
supercooled liquids | When a liquid is cooled below its melting temperature, if crystallization is
avoided, it forms a glass. This phenomenon, called glass transition, is
characterized by a marked increase of viscosity, about 14 orders of magnitude,
in a narrow temperature interval. The microscopic mechanism behind the glass
transition is still poorly understood. However, recently, great advances have
been made in the identification of cooperative rearranging regions, or
dynamical heterogeneities, i.e. domains of the liquid whose relaxation is
highly correlated. The growth of the size of these domains is now believed to
be the driving mechanism for the increase of the viscosity. Recently a tool to
quantify the size of these domains has been proposed. We apply this tool to a
wide class of materials to investigate the correlation between the size of the
heterogeneities and their configurational entropy, i.e. the number of states
accessible to a correlated domain. We find that the relaxation time of a given
system, apart from a material dependent pre-factor, is a universal function of
the configurational entropy of a correlated domain. As a consequence, we find
that at the glass transition temperature, the size of the domains and the
configurational entropy per unit volume are anti-correlated, as originally
predicted by the Adam-Gibbs theory. Finally, we use our data to extract some
exponents defined in the framework of the Random First Order Theory, a recent
quantitative theory of the glass transition.
| cond-mat.dis-nn cond-mat.soft cond-mat.stat-mech | when a liquid is cooled below its melting temperature if crystallization is avoided it forms a glass this phenomenon called glass transition is characterized by a marked increase of viscosity about 14 orders of magnitude in a narrow temperature interval the microscopic mechanism behind the glass transition is still poorly understood however recently great advances have been made in the identification of cooperative rearranging regions or dynamical heterogeneities ie domains of the liquid whose relaxation is highly correlated the growth of the size of these domains is now believed to be the driving mechanism for the increase of the viscosity recently a tool to quantify the size of these domains has been proposed we apply this tool to a wide class of materials to investigate the correlation between the size of the heterogeneities and their configurational entropy ie the number of states accessible to a correlated domain we find that the relaxation time of a given system apart from a material dependent prefactor is a universal function of the configurational entropy of a correlated domain as a consequence we find that at the glass transition temperature the size of the domains and the configurational entropy per unit volume are anticorrelated as originally predicted by the adamgibbs theory finally we use our data to extract some exponents defined in the framework of the random first order theory a recent quantitative theory of the glass transition | [['when', 'a', 'liquid', 'is', 'cooled', 'below', 'its', 'melting', 'temperature', 'if', 'crystallization', 'is', 'avoided', 'it', 'forms', 'a', 'glass', 'this', 'phenomenon', 'called', 'glass', 'transition', 'is', 'characterized', 'by', 'a', 'marked', 'increase', 'of', 'viscosity', 'about', '14', 'orders', 'of', 'magnitude', 'in', 'a', 'narrow', 'temperature', 'interval', 'the', 'microscopic', 'mechanism', 'behind', 'the', 'glass', 'transition', 'is', 'still', 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710.125 | Quantum-dot thermometry | We present a method for the measurement of a temperature differential across
a single quantum dot that has transmission resonances that are separated in
energy by much more than the thermal energy. We determine numerically that the
method is accurate to within a few percent across a wide range of parameters.
The proposed method measures the temperature of the electrons that enter the
quantum dot and will be useful in experiments that aim to test theory which
predicts quantum dots are highly-efficient thermoelectrics.
| cond-mat.mtrl-sci cond-mat.stat-mech | we present a method for the measurement of a temperature differential across a single quantum dot that has transmission resonances that are separated in energy by much more than the thermal energy we determine numerically that the method is accurate to within a few percent across a wide range of parameters the proposed method measures the temperature of the electrons that enter the quantum dot and will be useful in experiments that aim to test theory which predicts quantum dots are highlyefficient thermoelectrics | [['we', 'present', 'a', 'method', 'for', 'the', 'measurement', 'of', 'a', 'temperature', 'differential', 'across', 'a', 'single', 'quantum', 'dot', 'that', 'has', 'transmission', 'resonances', 'that', 'are', 'separated', 'in', 'energy', 'by', 'much', 'more', 'than', 'the', 'thermal', 'energy', 'we', 'determine', 'numerically', 'that', 'the', 'method', 'is', 'accurate', 'to', 'within', 'a', 'few', 'percent', 'across', 'a', 'wide', 'range', 'of', 'parameters', 'the', 'proposed', 'method', 'measures', 'the', 'temperature', 'of', 'the', 'electrons', 'that', 'enter', 'the', 'quantum', 'dot', 'and', 'will', 'be', 'useful', 'in', 'experiments', 'that', 'aim', 'to', 'test', 'theory', 'which', 'predicts', 'quantum', 'dots', 'are', 'highlyefficient', 'thermoelectrics']] | [-0.08835982180520309, 0.157977595566267, -0.09154926595020008, 0.04445708229582398, 0.014833269696907106, -0.16986132971381387, 0.04586418807725366, 0.3898711183209376, -0.23570094147629767, -0.3258848924369338, 0.034726336965875994, -0.2849737355171377, -0.10149647171766195, 0.3041995795645628, -0.008998962649402309, 0.0506704192922776, 0.0686108185292547, 0.020527594487171574, -0.07460547163128763, -0.1992010196154735, 0.2679018845994878, 0.06407363054269632, 0.25886135748082617, 0.09435275446129851, 0.0892588933929801, -0.028572272195155363, 0.07200406764981797, 0.04346613668982523, -0.1514281165297459, 0.10775689386863666, 0.2757455972023308, 0.05193311417845627, 0.2897702357058514, -0.3961460582059191, -0.23206697182213687, 0.06569156742511677, 0.13822563776903482, 0.1383563396675198, -0.06611468307817697, -0.23758905664849353, 0.11466668281390006, -0.16013964937708106, -0.08212205583050129, -0.10539260452770326, -0.008036973410712397, -0.0021177662777748093, -0.26159498259335395, 0.10019056747824583, -0.018382975356849695, -0.010491279122161579, -0.021765984493835145, -0.06483307075742857, 0.015962179054517345, 0.10844132148784148, -0.047406445103080334, -0.001291149516073785, 0.18406861988513404, -0.08882825637617743, -0.09868208500724959, 0.36781754685812684, -0.0866623562124224, -0.17249714398016053, 0.14297065264489278, -0.18869376698149795, -0.07620661557057357, 0.13929513042949768, 0.169165666978133, 0.15486192355368633, -0.17632909045352724, 0.042450168188969906, -0.023264745384993322, 0.19379914180426128, 0.019253032736435353, 0.06726774808400905, 0.2383976283718843, 0.1791818285787321, 0.056735117964626075, 0.10096867209586528, -0.12774500518992363, -0.13280029686908407, -0.26915628842291345, -0.18766319558023706, -0.20731960263956023, 0.05542436691494771, -0.06797366219005374, -0.15284479160565906, 0.45327254651810034, 0.20651993718761277, 0.16939203541007747, -0.010040119774948177, 0.30321267352675096, 0.15980050481676336, 0.09788248329479472, 0.04414129211758095, 0.2645851597414318, 0.13153879001388796, 0.08039419945464077, -0.22599265322717557, 0.009680484202746526, -0.03744472319776394] |
710.1251 | Biconical structures in two-dimensional anisotropic Heisenberg
antiferromagnets | Square lattice Heisenberg and XY antiferromagnets with uniaxial anisotropy in
a field along the easy axis are studied. Based on ground state considerations
and Monte Carlo simulations, the role of biconical structures in the transition
region between the antiferromagnetic and spin--flop phases is analyzed. In
particular, adding a single--ion anisotropy to the XXZ antiferromagnet, one
observes, depending on the sign of that anisotropy, either an intervening
biconical phase or a direct transition of first order separating the two
phases. In case of the anisotropic XY model, the degeneracy of the ground
state, at a critical field, in antiferromagnetic, spin--flop, and bidirectional
structures seems to result, as in the case of the XXZ model, in a narrow
disordered phase between the antiferromagnetic and spin--flop phases, dominated
by bidirectional fluctuations.
| cond-mat.stat-mech | square lattice heisenberg and xy antiferromagnets with uniaxial anisotropy in a field along the easy axis are studied based on ground state considerations and monte carlo simulations the role of biconical structures in the transition region between the antiferromagnetic and spinflop phases is analyzed in particular adding a singleion anisotropy to the xxz antiferromagnet one observes depending on the sign of that anisotropy either an intervening biconical phase or a direct transition of first order separating the two phases in case of the anisotropic xy model the degeneracy of the ground state at a critical field in antiferromagnetic spinflop and bidirectional structures seems to result as in the case of the xxz model in a narrow disordered phase between the antiferromagnetic and spinflop phases dominated by bidirectional fluctuations | [['square', 'lattice', 'heisenberg', 'and', 'xy', 'antiferromagnets', 'with', 'uniaxial', 'anisotropy', 'in', 'a', 'field', 'along', 'the', 'easy', 'axis', 'are', 'studied', 'based', 'on', 'ground', 'state', 'considerations', 'and', 'monte', 'carlo', 'simulations', 'the', 'role', 'of', 'biconical', 'structures', 'in', 'the', 'transition', 'region', 'between', 'the', 'antiferromagnetic', 'and', 'spinflop', 'phases', 'is', 'analyzed', 'in', 'particular', 'adding', 'a', 'singleion', 'anisotropy', 'to', 'the', 'xxz', 'antiferromagnet', 'one', 'observes', 'depending', 'on', 'the', 'sign', 'of', 'that', 'anisotropy', 'either', 'an', 'intervening', 'biconical', 'phase', 'or', 'a', 'direct', 'transition', 'of', 'first', 'order', 'separating', 'the', 'two', 'phases', 'in', 'case', 'of', 'the', 'anisotropic', 'xy', 'model', 'the', 'degeneracy', 'of', 'the', 'ground', 'state', 'at', 'a', 'critical', 'field', 'in', 'antiferromagnetic', 'spinflop', 'and', 'bidirectional', 'structures', 'seems', 'to', 'result', 'as', 'in', 'the', 'case', 'of', 'the', 'xxz', 'model', 'in', 'a', 'narrow', 'disordered', 'phase', 'between', 'the', 'antiferromagnetic', 'and', 'spinflop', 'phases', 'dominated', 'by', 'bidirectional', 'fluctuations']] | [-0.24113366997335106, 0.231741922812148, -0.006989322191657266, 0.01921948212566349, -0.06388421951851342, -0.14159535517501354, 0.031511651424807496, 0.44252088759094477, -0.2656883366726106, -0.24717187424539588, 0.06362211336727341, -0.3182064960419666, -0.07675178619865619, 0.13039112883598136, 0.15471177063386676, -0.041196342412149534, -0.040429641241644276, -0.011795604317740072, -0.1343056396663087, -0.176940171761089, 0.2735796762863174, -0.012879128680651775, 0.29507642422322533, 0.015580370136376587, 0.055898339651321294, 0.029841699342796346, 0.17729607633373234, 0.025687223776913015, -0.18156237975409795, 0.005524316376977367, 0.22077457254636101, -0.1287015265879745, 0.13722386930021457, -0.4024592991627287, -0.18090332499559736, 0.0828174658199714, 0.16103476377247716, 0.15847870682773646, -0.025359121609653812, -0.3432287228461064, -0.017037803541938956, -0.1575926981658995, -0.12807199490407584, -0.051815689341310645, -0.05050381844739604, -0.011985915756667964, -0.26618894862622255, 0.14323818431876134, 0.12394811756166746, 0.15278273725380132, -0.05954378017486306, -0.08927162497639074, -0.10143567060003988, 0.06649042867411481, 0.08533985037047387, 0.13073474213160807, 0.06658143784443382, -0.14860510008519157, -0.17941118103863118, 0.38163162776618265, -0.04124776222761284, -0.10389287108409917, 0.1393781334227242, -0.18327233954039457, -0.12176877468664316, 0.17060461289838713, 0.09809573100392299, 0.02450802602652402, -0.08460617827586248, 0.0869839744532328, 0.027967138339590747, 0.18307217573965318, -0.05095246971541201, -0.0304377057000238, 0.27071975585568, 0.15647417991749535, 0.05291761401895201, 0.24162322102711187, -0.1315575760199863, -0.1962333869341819, -0.2404617690917803, -0.14614242151583312, -0.271679419267457, 0.016643407005176414, -0.13728995729809412, -0.21032783730333904, 0.38573109527351335, 0.17691277340145461, 0.1960806389397476, -0.10704888829422998, 0.23827350891224341, 0.014419835663829872, -0.016100647964776726, 0.06182809720667137, 0.259628483952838, 0.20657940625642368, 0.11887196244788356, -0.2417441865800356, 0.08509518182836473, 0.05481611805953435] |
710.1252 | Estimates on trapped modes in deformed quantum layers | We use a logarithmic Lieb-Thirring inequality for two-dimensional
Schroedinger operators and establish estimates on trapped modes in
geometrically deformed quantum layers.
| math-ph math.MP | we use a logarithmic liebthirring inequality for twodimensional schroedinger operators and establish estimates on trapped modes in geometrically deformed quantum layers | [['we', 'use', 'a', 'logarithmic', 'liebthirring', 'inequality', 'for', 'twodimensional', 'schroedinger', 'operators', 'and', 'establish', 'estimates', 'on', 'trapped', 'modes', 'in', 'geometrically', 'deformed', 'quantum', 'layers']] | [-0.10228017810732126, 0.14509330840692633, -0.020012178059135164, 0.12003896349952334, -0.010009295983417403, -0.25140419307475287, 0.02462240472197577, 0.3332721592769736, -0.24697489859092803, -0.16433928231708705, 0.0751724091436093, -0.3915013685112908, -0.11120687602531343, 0.22613058296874874, -0.06322146699919055, 0.14928611671729458, 0.05245413759812003, -0.009643655891219774, -0.13946987871479774, -0.1924065783442486, 0.34974397630209014, -0.05162934101341913, 0.26464803978091195, 0.027564172366900102, 0.03334351961633989, -0.005991806010050433, 0.08332671881431625, -0.08519804300296874, -0.27810616325587034, 0.2141660958794611, 0.20449808115760484, -0.10396684060937592, 0.24077841515342394, -0.5418289002208483, -0.22902683075517416, 0.06779382683868919, 0.20928257499777136, 0.10366501940769099, -0.08314242283259296, -0.343139747867272, -0.08592305505382163, -0.10697990425285839, -0.2558403948233241, -0.19800815438585623, -0.03230468848986285, -0.03152992842452867, -0.3140974919356051, 0.19149727780105813, 0.1035620758221263, 0.04119784037937366, -0.1415849785276112, 0.022705057192416417, 0.028992584418682826, 0.02047080701837937, -0.07319274580194837, -0.07556363647537571, 0.09227151825048384, -0.09226615429811534, -0.1542901402960221, 0.25317292837869554, -0.10484218925592445, -0.3053473704272792, 0.1207044484714667, -0.16201761417046545, -0.11648053616019231, -0.0805484081308047, 0.23201643090162957, 0.15402828496215598, -0.08100429682859353, 0.1768418230709531, -0.08639459369615429, 0.11640420316585473, 0.12408282235264778, 0.13223312968122108, 0.11325325887827646, 0.029094823857858068, 0.1715801717003896, 0.20231081208302862, -0.024834359807538845, -0.1583898010708037, -0.36828874690192087, -0.22663005645431222, -0.22763922074366183, 0.13674071573075794, -0.15192497299826105, -0.21473353196467673, 0.3441164440342358, -0.018865881576424555, 0.1700760723601672, 0.05662001407022001, 0.13997956595960118, 0.1888723023945377, 0.1126712022704028, 0.09869859795573921, 0.26305510857630343, 0.2965583780869132, 0.05507582077933919, -0.16504600451194815, -0.11629314640802997, 0.2690740856120274] |
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