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708.2749 | The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary | The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year
project to identify and measure light curves for intermediate-redshift (0.05 <
z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging
over an area of 300 sq. deg. The survey region is a stripe 2.5 degrees wide
centered on the celestial equator in the Southern Galactic Cap that has been
imaged numerous times in earlier years, enabling construction of a deep
reference image for discovery of new objects. Supernova imaging observations
are being acquired between 1 September and 30 November of 2005-7. During the
first two seasons, each region was imaged on average every five nights.
Spectroscopic follow-up observations to determine supernova type and redshift
are carried out on a large number of telescopes. In its first two three-month
seasons, the survey has discovered and measured light curves for 327
spectroscopically confirmed SNe Ia, 30 probable SNe Ia, 14 confirmed SNe Ib/c,
32 confirmed SNe II, plus a large number of photometrically identified SNe Ia,
94 of which have host-galaxy spectra taken so far. This paper provides an
overview of the project and briefly describes the observations completed during
the first two seasons of operation.
| astro-ph | the sloan digital sky surveyii sdssii has embarked on a multiyear project to identify and measure light curves for intermediateredshift 005 z 035 type ia supernovae sne ia using repeated fiveband ugriz imaging over an area of 300 sq deg the survey region is a stripe 25 degrees wide centered on the celestial equator in the southern galactic cap that has been imaged numerous times in earlier years enabling construction of a deep reference image for discovery of new objects supernova imaging observations are being acquired between 1 september and 30 november of 20057 during the first two seasons each region was imaged on average every five nights spectroscopic followup observations to determine supernova type and redshift are carried out on a large number of telescopes in its first two threemonth seasons the survey has discovered and measured light curves for 327 spectroscopically confirmed sne ia 30 probable sne ia 14 confirmed sne ibc 32 confirmed sne ii plus a large number of photometrically identified sne ia 94 of which have hostgalaxy spectra taken so far this paper provides an overview of the project and briefly describes the observations completed during the first two seasons of operation | [['the', 'sloan', 'digital', 'sky', 'surveyii', 'sdssii', 'has', 'embarked', 'on', 'a', 'multiyear', 'project', 'to', 'identify', 'and', 'measure', 'light', 'curves', 'for', 'intermediateredshift', '005', 'z', '035', 'type', 'ia', 'supernovae', 'sne', 'ia', 'using', 'repeated', 'fiveband', 'ugriz', 'imaging', 'over', 'an', 'area', 'of', '300', 'sq', 'deg', 'the', 'survey', 'region', 'is', 'a', 'stripe', '25', 'degrees', 'wide', 'centered', 'on', 'the', 'celestial', 'equator', 'in', 'the', 'southern', 'galactic', 'cap', 'that', 'has', 'been', 'imaged', 'numerous', 'times', 'in', 'earlier', 'years', 'enabling', 'construction', 'of', 'a', 'deep', 'reference', 'image', 'for', 'discovery', 'of', 'new', 'objects', 'supernova', 'imaging', 'observations', 'are', 'being', 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708.275 | The Sloan Digital Sky Survey-II Supernova Survey: Search Algorithm and
Follow-up Observations | The Sloan Digital Sky Survey-II Supernova Survey has identified a large
number of new transient sources in a 300 sq. deg. region along the celestial
equator during its first two seasons of a three-season campaign. Multi-band
(ugriz) light curves were measured for most of the sources, which include solar
system objects, Galactic variable stars, active galactic nuclei, supernovae
(SNe), and other astronomical transients. The imaging survey is augmented by an
extensive spectroscopic follow-up program to identify SNe, measure their
redshifts, and study the physical conditions of the explosions and their
environment through spectroscopic diagnostics. During the survey, light curves
are rapidly evaluated to provide an initial photometric type of the SNe, and a
selected sample of sources are targeted for spectroscopic observations. In the
first two seasons, 476 sources were selected for spectroscopic observations, of
which 403 were identified as SNe. For the Type Ia SNe, the main driver for the
Survey, our photometric typing and targeting efficiency is 90%. Only 6% of the
photometric SN Ia candidates were spectroscopically classified as non-SN Ia
instead, and the remaining 4% resulted in low signal-to-noise, unclassified
spectra. This paper describes the search algorithm and the software, and the
real-time processing of the SDSS imaging data. We also present the details of
the supernova candidate selection procedures and strategies for follow-up
spectroscopic and imaging observations of the discovered sources.
| astro-ph | the sloan digital sky surveyii supernova survey has identified a large number of new transient sources in a 300 sq deg region along the celestial equator during its first two seasons of a threeseason campaign multiband ugriz light curves were measured for most of the sources which include solar system objects galactic variable stars active galactic nuclei supernovae sne and other astronomical transients the imaging survey is augmented by an extensive spectroscopic followup program to identify sne measure their redshifts and study the physical conditions of the explosions and their environment through spectroscopic diagnostics during the survey light curves are rapidly evaluated to provide an initial photometric type of the sne and a selected sample of sources are targeted for spectroscopic observations in the first two seasons 476 sources were selected for spectroscopic observations of which 403 were identified as sne for the type ia sne the main driver for the survey our photometric typing and targeting efficiency is 90 only 6 of the photometric sn ia candidates were spectroscopically classified as nonsn ia instead and the remaining 4 resulted in low signaltonoise unclassified spectra this paper describes the search algorithm and the software and the realtime processing of the sdss imaging data we also present the details of the supernova candidate selection procedures and strategies for followup spectroscopic and imaging observations of the discovered sources | [['the', 'sloan', 'digital', 'sky', 'surveyii', 'supernova', 'survey', 'has', 'identified', 'a', 'large', 'number', 'of', 'new', 'transient', 'sources', 'in', 'a', '300', 'sq', 'deg', 'region', 'along', 'the', 'celestial', 'equator', 'during', 'its', 'first', 'two', 'seasons', 'of', 'a', 'threeseason', 'campaign', 'multiband', 'ugriz', 'light', 'curves', 'were', 'measured', 'for', 'most', 'of', 'the', 'sources', 'which', 'include', 'solar', 'system', 'objects', 'galactic', 'variable', 'stars', 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708.2751 | Scale dependent superconductor-insulator transition | We study the disorder driven superconductor to insulator transition in
amorphous films of high carrier-concentration indium-oxide. Using thin films
with various sizes and aspect ratios we show that the `critical'
sheet-resistance $R_{{\small \square}}$ depends systematically on sample
geometry; superconductivity disappears when $R_{{\small \square}}$ exceeds
$\approx6 $k$\Omega$ in large samples. On the other hand, wide and sufficiently
short samples of the same batch exhibit superconductivity (judged by
conductivity versus temperature) up to $R_{{\small \square}}$ which is
considerably larger. These results support the inhomogeneous scenario for the
superconductor-insulator transition.
| cond-mat.dis-nn cond-mat.supr-con | we study the disorder driven superconductor to insulator transition in amorphous films of high carrierconcentration indiumoxide using thin films with various sizes and aspect ratios we show that the critical sheetresistance r_small square depends systematically on sample geometry superconductivity disappears when r_small square exceeds approx6 komega in large samples on the other hand wide and sufficiently short samples of the same batch exhibit superconductivity judged by conductivity versus temperature up to r_small square which is considerably larger these results support the inhomogeneous scenario for the superconductorinsulator transition | [['we', 'study', 'the', 'disorder', 'driven', 'superconductor', 'to', 'insulator', 'transition', 'in', 'amorphous', 'films', 'of', 'high', 'carrierconcentration', 'indiumoxide', 'using', 'thin', 'films', 'with', 'various', 'sizes', 'and', 'aspect', 'ratios', 'we', 'show', 'that', 'the', 'critical', 'sheetresistance', 'r_small', 'square', 'depends', 'systematically', 'on', 'sample', 'geometry', 'superconductivity', 'disappears', 'when', 'r_small', 'square', 'exceeds', 'approx6', 'komega', 'in', 'large', 'samples', 'on', 'the', 'other', 'hand', 'wide', 'and', 'sufficiently', 'short', 'samples', 'of', 'the', 'same', 'batch', 'exhibit', 'superconductivity', 'judged', 'by', 'conductivity', 'versus', 'temperature', 'up', 'to', 'r_small', 'square', 'which', 'is', 'considerably', 'larger', 'these', 'results', 'support', 'the', 'inhomogeneous', 'scenario', 'for', 'the', 'superconductorinsulator', 'transition']] | [-0.1268672420182961, 0.23840839495673646, 0.0010265670181519684, 0.010906828384064994, -0.020588799454699987, -0.1766008135980402, 0.09083321211517029, 0.40869933358211624, -0.20646596702629294, -0.29044440789041165, 0.07937776401970835, -0.32780602373097134, -0.09130481433594363, 0.19391314500485193, 0.0013298983605385855, 0.013052917867042553, -0.05197074731554965, -0.08241792356102974, -0.13383736689949685, -0.2754974487269747, 0.3050078373059802, 0.014710839227612677, 0.3906455681841264, 0.07612191556803026, 0.0011237022980790713, -0.03839592985145148, 0.12768482715500273, 0.10113730563664403, -0.21682885385310108, -0.008801032381263379, 0.23878800263360742, -0.10873441074857082, 0.17952409896186028, -0.3999160256382478, -0.19172463077923346, 0.02761525877526608, 0.13641868274519756, 0.10126640975619827, -0.04369646361921967, -0.2451177065357052, 0.1137713514664478, -0.10140818090649086, -0.09352049102535707, -0.04379732977202826, 0.012331072476574745, 0.011306728388921454, -0.2319429006471684, 0.10461211670190096, 0.057649170369680584, 0.12742179625496353, -0.0731272082722307, -0.18318149724696903, -0.03799026735774616, 0.03575984462219205, 0.06794253210858281, 0.04758010880791464, 0.1896814315462078, -0.14876311043298793, -0.024123148821379947, 0.31412968202226466, -0.0803507262327034, -0.05193053791299462, 0.19303549702504072, -0.22466503650528089, -0.051200604762068426, 0.18837314630301946, 0.13972858736163069, 0.08875050358527779, -0.07453580678460033, 0.04653193290885966, -0.026518896971454566, 0.24201697594989305, 0.032215409087894976, 0.03725531877917719, 0.20071674861420674, 0.2508429662022076, 0.024200476202899696, 0.17986596388348924, -0.1313744806042262, -0.04271860994484233, -0.19450988763964724, -0.14113318616117554, -0.24066487368431755, 0.08736015730417045, -0.15908778035958382, -0.22253688223574353, 0.3082487725749098, 0.20046853243598137, 0.21559362114546285, 0.016086564400640112, 0.1876486913119068, 0.10079329218929527, 0.10235041679530779, 0.029869856227232122, 0.23003238568285844, 0.1436099833782077, 0.12448394474932716, -0.2295299390111461, 0.09923345902292378, 0.0006590874025319842] |
708.2752 | Cubic points on cubic curves and the Brauer-Manin obstruction on K3
surfaces | We show that if over some number field there exists a certain diagonal plane
cubic curve that is locally solvable everywhere, but that does not have points
over any cubic galois extension of the number field, then the algebraic part of
the Brauer-Manin obstruction is not the only obstruction to the Hasse principle
for K3 surfaces.
| math.NT math.AG | we show that if over some number field there exists a certain diagonal plane cubic curve that is locally solvable everywhere but that does not have points over any cubic galois extension of the number field then the algebraic part of the brauermanin obstruction is not the only obstruction to the hasse principle for k3 surfaces | [['we', 'show', 'that', 'if', 'over', 'some', 'number', 'field', 'there', 'exists', 'a', 'certain', 'diagonal', 'plane', 'cubic', 'curve', 'that', 'is', 'locally', 'solvable', 'everywhere', 'but', 'that', 'does', 'not', 'have', 'points', 'over', 'any', 'cubic', 'galois', 'extension', 'of', 'the', 'number', 'field', 'then', 'the', 'algebraic', 'part', 'of', 'the', 'brauermanin', 'obstruction', 'is', 'not', 'the', 'only', 'obstruction', 'to', 'the', 'hasse', 'principle', 'for', 'k3', 'surfaces']] | [-0.25929631340633413, 0.0767507502044152, -0.12941868184134364, 0.07615086067484558, -0.17544435915936316, -0.1511243820506414, 0.00024228837407593216, 0.3460158899293414, -0.33187774631993044, -0.22009062316335207, 0.11285123434416684, -0.23072231175111874, -0.19742001882072405, 0.22977184281418367, -0.1215280401146239, -0.06328722940192424, 0.02024391190414982, 0.15486960952901946, -0.06876173414639197, -0.402242504642345, 0.37414267050501493, -0.1063681302059974, 0.20478496837729057, 0.11173584619869611, 0.1387739186466206, 0.054639155411028435, 0.13951062998135708, 0.07470476436927649, -0.12205662906580983, 0.011691280973276921, 0.3304522407706827, 0.08481471882467824, 0.20682347785415395, -0.3788820340663993, -0.20760195878600435, 0.31881124132113264, 0.12001272354141942, 0.09327796558916036, -0.05584621342963406, -0.14666648105984287, 0.1413299951735618, -0.10120765033311077, -0.18174523732159287, -0.07272310553318155, 0.027253889973508194, 0.024484595616481135, -0.1660908007927771, -0.040320013383669515, 0.1285701838787645, 0.1739237381066232, -0.03010864487233838, -0.044694299000963965, -0.10107309557497501, 0.018757555226329714, 0.026305358757131865, 0.0988725740712003, 0.039884705404152294, -0.08599583673224385, -0.045692081638013145, 0.37466593126633335, -0.07001147810037114, -0.21999962591300054, 0.10470835064604346, -0.17809573404623993, -0.14048981373863562, 0.2529586539936385, 0.02010446524114481, 0.1250697956919404, -0.023093219846487045, 0.24511235606457507, -0.16605482163972088, 0.18276754024970746, 0.09390077390708029, -0.0773485092795454, 0.14675822331004643, -0.02624208460162793, 0.15511478976363183, 0.026568647723511925, -0.033436827103806924, -0.04715609791622098, -0.43091385691825834, -0.16806683826559624, -0.19358313075956954, 0.10671653682584292, -0.1044291523597037, -0.24190338661095925, 0.3705360536197467, 0.09713799450297042, 0.12457898052941475, 0.1229943077612136, 0.22194790955524826, 0.06646862313417452, 0.10455384152010083, 0.13402822873155987, 0.21267289772523718, 0.16898227053960518, -0.05614307015951324, -0.13419504425421888, 0.026648573111742735, 0.18690398771182767] |
708.2753 | Dynamical quantum phase transitions in the dissipative
Lipkin-Meshkov-Glick model and proposed realization in optical cavity QED | We present an optical cavity QED configuration that is described by a
dissipative version of the Lipkin-Meshkov-Glick model of an infinitely
coordinated spin system. This open quantum system exhibits both first- and
second-order non-equilibrium quantum phase transitions as a single, effective
field parameter is varied. Light emitted from the cavity offers measurable
signatures of the critical behavior, including that of the spin-spin
entanglement.
| quant-ph cond-mat.other | we present an optical cavity qed configuration that is described by a dissipative version of the lipkinmeshkovglick model of an infinitely coordinated spin system this open quantum system exhibits both first and secondorder nonequilibrium quantum phase transitions as a single effective field parameter is varied light emitted from the cavity offers measurable signatures of the critical behavior including that of the spinspin entanglement | [['we', 'present', 'an', 'optical', 'cavity', 'qed', 'configuration', 'that', 'is', 'described', 'by', 'a', 'dissipative', 'version', 'of', 'the', 'lipkinmeshkovglick', 'model', 'of', 'an', 'infinitely', 'coordinated', 'spin', 'system', 'this', 'open', 'quantum', 'system', 'exhibits', 'both', 'first', 'and', 'secondorder', 'nonequilibrium', 'quantum', 'phase', 'transitions', 'as', 'a', 'single', 'effective', 'field', 'parameter', 'is', 'varied', 'light', 'emitted', 'from', 'the', 'cavity', 'offers', 'measurable', 'signatures', 'of', 'the', 'critical', 'behavior', 'including', 'that', 'of', 'the', 'spinspin', 'entanglement']] | [-0.2220797575197168, 0.22225397612783127, -0.07718172002702005, -0.0027243474665622686, 0.03127716438076089, -0.19675892317992827, 0.005505460059447657, 0.3446531089998427, -0.23609713081359154, -0.240192140382345, 0.012785114347934723, -0.2891575252075517, -0.14116690674471477, 0.22522833789255292, 0.04244474352647861, 0.0757259414605205, 0.001247275798093705, 0.0009133331255898589, -0.053110128837741084, -0.13451702586404743, 0.30665883145457695, 0.02002384374287748, 0.24381443558792984, 0.05455901691808351, 0.1139110001469297, 0.02002230186813644, 0.11245061565072291, 0.013134756820305946, -0.10791258293038626, 0.04124372252928359, 0.20896429574442288, 0.04623052745407063, 0.20404304075008628, -0.3893234076214925, -0.23350854080525182, 0.06670423214220339, 0.15570951037714997, 0.18326542100736073, -0.06193486305456313, -0.32519677908174577, -0.07277833126367085, -0.20593109890995992, -0.1682897131254394, -0.1023463753185102, 0.0006388743012581789, -0.02492889162108657, -0.2495172248621072, 0.06687785508175795, 0.08446511063754322, 0.07604362453437513, -0.02861589151212857, 0.016740627568362962, 0.004983870859538752, 0.1146253863911307, -0.037547702718126984, 0.060420561064448625, 0.17993775671643633, -0.14459536638155224, -0.1615784184652425, 0.3783025709646089, -0.11739345003540318, -0.11303247916438276, 0.14494739587433517, -0.1314947679712777, -0.07591298796857397, 0.14203592345473312, 0.1295384627042545, 0.10216792401606364, -0.18416763735669, 0.09600663804072639, -0.019240358090471654, 0.23421967003516675, -0.02040605271412503, 0.11108904173745522, 0.24882508657636151, 0.1741436753192887, 0.02723176565967382, 0.25843350000176873, -0.06756461071707899, -0.1953355338062263, -0.3317398270277957, -0.14306954126657237, -0.20892241414237236, 0.08907444990565261, -0.08977886055026107, -0.18802060917877253, 0.43914510853706845, 0.14589973885772956, 0.1420792912591308, -0.03960281789361957, 0.2761411370620841, 0.16803752601937583, 0.018142119390032595, 0.03660496432215921, 0.2949519208115008, 0.12908317599194272, 0.1070458308852736, -0.33052726057062426, -0.00984454457278526, 0.022732466577537476] |
708.2754 | Convergence of random zeros on complex manifolds | We show that the zeros of random sequences of Gaussian systems of polynomials
of increasing degree almost surely converge to the expected limit distribution
under very general hypotheses. In particular, the normalized distribution of
zeros of systems of m polynomials of degree N, orthonormalized on a regular
compact subset K of C^m, almost surely converge to the equilibrium measure on K
as the degree N goes to infinity.
| math.CV math.AG math.PR | we show that the zeros of random sequences of gaussian systems of polynomials of increasing degree almost surely converge to the expected limit distribution under very general hypotheses in particular the normalized distribution of zeros of systems of m polynomials of degree n orthonormalized on a regular compact subset k of cm almost surely converge to the equilibrium measure on k as the degree n goes to infinity | [['we', 'show', 'that', 'the', 'zeros', 'of', 'random', 'sequences', 'of', 'gaussian', 'systems', 'of', 'polynomials', 'of', 'increasing', 'degree', 'almost', 'surely', 'converge', 'to', 'the', 'expected', 'limit', 'distribution', 'under', 'very', 'general', 'hypotheses', 'in', 'particular', 'the', 'normalized', 'distribution', 'of', 'zeros', 'of', 'systems', 'of', 'm', 'polynomials', 'of', 'degree', 'n', 'orthonormalized', 'on', 'a', 'regular', 'compact', 'subset', 'k', 'of', 'cm', 'almost', 'surely', 'converge', 'to', 'the', 'equilibrium', 'measure', 'on', 'k', 'as', 'the', 'degree', 'n', 'goes', 'to', 'infinity']] | [-0.20227526439189472, 0.1254981645684251, -0.1032857058898491, 0.012058354462223017, 0.04106628472971566, -0.1284451377030243, 0.07387432425885516, 0.326583981870071, -0.25355427117799134, -0.20118222473298802, 0.06893666371915434, -0.32481494376107173, -0.11411902849452898, 0.13829874366124653, -0.03005089043119155, 0.08903737555203192, 0.043650305295801335, 0.13019541889319525, -0.06318098873324583, -0.34632717839935245, 0.3329102204811266, 0.037064963842139524, 0.23800807268194416, -0.04068017152894754, 0.10894139451128841, 0.003028510035673047, 0.029038893634124714, -0.022073221310754034, -0.12160191098487036, 0.07285408028538394, 0.21372037364498658, 0.14207328136955552, 0.2565657007234061, -0.31464053563061445, -0.13633737203610294, 0.24208593395922115, 0.18352324112236282, -0.03655361575896249, 0.08563369991572793, -0.2066879659781561, 0.16081194548100672, -0.04993836838056107, -0.2921161942101796, -0.04757291466162047, 0.07379453369032811, 0.13433346845319166, -0.30998367958647366, 0.018105489441522342, 0.15337335577179842, 0.09463067760225385, 0.021996278219911104, -0.19937471479608895, -0.0224103170364876, 0.11192978790495545, 0.04751980882685851, 0.0411933076033807, 0.09030842116129968, -0.0812490244724733, -0.051999253857716476, 0.3230680752381244, -0.12051752327448305, -0.20816821739187136, 0.16975330786012552, -0.25044917311820697, -0.1557820626972791, 0.16623403586666374, 0.186283498947673, 0.17358011708540075, -0.045811146169024354, 0.1593827266136513, -0.1155719099470469, 0.1530343076070387, 0.16109872994232266, 0.058944667847861315, 0.16096102369620519, 0.05092708994839888, 0.18098581223474705, 0.13523104587597223, -0.01582099010085906, -0.09389860103564228, -0.29723394456702995, -0.13502920687417774, -0.2755103323279935, 0.17509256675839424, -0.17417129483895705, -0.2423761161729036, 0.34554969064672203, 0.11693459749221802, 0.22938583928215153, 0.18628274336429862, 0.17982791508000126, 0.11882384590674466, -0.021370966305874067, 0.09215775721103829, 0.09560176904094131, 0.21234417290372007, 0.031844141646562255, -0.1398115192320855, 0.060488365611116236, 0.04486375375007115] |
708.2755 | Higgs bosons of the NMSSM with explicit CP violation at the ILC | We study the Higgs sector of the next-to-minimal supersymmetric standard
model (NMSSM) with explicit CP violation at the one-loop level, where the
radiative corrections due to the quarks and squarks of the third generation are
taken into account. We expect that, within a reasonable region of the parameter
space of the present model, at least one of five neutral Higgs bosons may be
produced at the future $e^+ e^-$ International Linear Collider (ILC) with
$\sqrt{s} = 500$ GeV, with cross section larger than 12 fb, 15 fb, and 1.5 fb,
respectively, via the Higgs-strahlung process, the $WW$ fusion process, and the
$ZZ$ fusion process. We find that the effect of the CP phase in the present
model yields significant influences upon the production cross sections of the
five neutral Higgs bosons. We also study the decay modes of the five neutral
Higgs bosons to find that their decay widths are similarly affected by the CP
phase. Some of the decay modes in the present model behave differently from
those of the Standard Model.
| hep-ph | we study the higgs sector of the nexttominimal supersymmetric standard model nmssm with explicit cp violation at the oneloop level where the radiative corrections due to the quarks and squarks of the third generation are taken into account we expect that within a reasonable region of the parameter space of the present model at least one of five neutral higgs bosons may be produced at the future e e international linear collider ilc with sqrts 500 gev with cross section larger than 12 fb 15 fb and 15 fb respectively via the higgsstrahlung process the ww fusion process and the zz fusion process we find that the effect of the cp phase in the present model yields significant influences upon the production cross sections of the five neutral higgs bosons we also study the decay modes of the five neutral higgs bosons to find that their decay widths are similarly affected by the cp phase some of the decay modes in the present model behave differently from those of the standard model | [['we', 'study', 'the', 'higgs', 'sector', 'of', 'the', 'nexttominimal', 'supersymmetric', 'standard', 'model', 'nmssm', 'with', 'explicit', 'cp', 'violation', 'at', 'the', 'oneloop', 'level', 'where', 'the', 'radiative', 'corrections', 'due', 'to', 'the', 'quarks', 'and', 'squarks', 'of', 'the', 'third', 'generation', 'are', 'taken', 'into', 'account', 'we', 'expect', 'that', 'within', 'a', 'reasonable', 'region', 'of', 'the', 'parameter', 'space', 'of', 'the', 'present', 'model', 'at', 'least', 'one', 'of', 'five', 'neutral', 'higgs', 'bosons', 'may', 'be', 'produced', 'at', 'the', 'future', 'e', 'e', 'international', 'linear', 'collider', 'ilc', 'with', 'sqrts', '500', 'gev', 'with', 'cross', 'section', 'larger', 'than', '12', 'fb', '15', 'fb', 'and', '15', 'fb', 'respectively', 'via', 'the', 'higgsstrahlung', 'process', 'the', 'ww', 'fusion', 'process', 'and', 'the', 'zz', 'fusion', 'process', 'we', 'find', 'that', 'the', 'effect', 'of', 'the', 'cp', 'phase', 'in', 'the', 'present', 'model', 'yields', 'significant', 'influences', 'upon', 'the', 'production', 'cross', 'sections', 'of', 'the', 'five', 'neutral', 'higgs', 'bosons', 'we', 'also', 'study', 'the', 'decay', 'modes', 'of', 'the', 'five', 'neutral', 'higgs', 'bosons', 'to', 'find', 'that', 'their', 'decay', 'widths', 'are', 'similarly', 'affected', 'by', 'the', 'cp', 'phase', 'some', 'of', 'the', 'decay', 'modes', 'in', 'the', 'present', 'model', 'behave', 'differently', 'from', 'those', 'of', 'the', 'standard', 'model']] | [-0.05832718796811478, 0.23980301085772904, -0.01615158162285509, 0.12763534492773412, -0.013244085720480355, -0.16478537037145607, 0.04640179900533715, 0.3145999907797506, -0.23053065242873894, -0.2665419329612971, 0.02078263536718306, -0.3269896318886949, 0.005758629470175609, 0.12902882597014934, 0.11565760933766331, 0.05255441690001875, 0.09631256585085202, 0.010590101286314081, -0.034206248147055765, -0.27356529896293746, 0.2850963805536848, 0.05786987313551308, 0.20524627854506117, 0.08517293743843343, 0.029803369881931777, 0.01987346123530378, -0.05726584532334697, -0.09848676994189128, -0.12004268208299838, 0.09474688614610323, 0.15737825003317232, 0.06483939700749118, 0.1332038722845704, -0.33725746823907937, -0.10023952176832313, 0.18631178807185658, 0.14760824278363183, 0.08068818256778773, -0.029100844262947522, -0.32123279636509194, 0.10436309390900343, -0.22913259223136012, -0.07005062120760856, -0.009679242661276961, -0.03419499048086013, -0.12033749724532543, -0.31601569307209965, 0.11124601366988594, -0.03996749655282677, 0.0277498722121087, -0.011456588442913841, -0.19419703543657263, -0.10817821796842698, -0.006251995847018999, 0.13910531870723664, 0.0038165482132340956, 0.18894248848698417, -0.18064980300381606, -0.18549616412302955, 0.43711682803235774, -0.13329509894140565, -0.15946224964830244, 0.16297340388193207, -0.22328223785937784, -0.12451314926553561, 0.1746477405378205, 0.24923611877331792, 0.05888006601044042, -0.16538564702171052, 0.16322370584097118, -0.008663386839839932, 0.1581717549273636, 0.04809826859516676, 0.047509227443464794, 0.22969636803514562, 0.1955179921838693, 0.0017930107424035668, 0.09088091995651011, -0.13013139207370925, -0.08024318905027453, -0.4580824548421904, -0.14643570475908385, 0.023846066019465324, 0.022118862199212618, -0.06389675344325951, -0.07665115892670529, 0.39577641648099604, 0.13181491459646738, 0.2908693757351504, 0.02817452499550919, 0.2783337135171128, 0.12399310322456755, 0.09510221089413091, 0.033556974635355924, 0.36782122452199856, 0.11150203511622453, 0.12015455259215953, -0.20995963167745707, -0.008968530710093504, 0.06094165080021201] |
708.2756 | Long-term X-ray changes in the emission from the anomalous X-ray pulsar
4U 0142+61 | We present results obtained from X-ray observations of the anomalous X-ray
pulsar (AXP) 4U 0142+61 taken between 2000-2007 using XMM-Newton, Chandra and
Swift. In observations taken before 2006, the pulse profile is observed to
become more sinusoidal and the pulsed fraction increased with time. These
results confirm those derived using the Rossi X-ray Timing Explorer and expand
the observed evolution to energies below 2 keV. The XMM-Newton total flux in
the 0.5-10 keV band is observed to be nearly constant in observations taken
before 2006, while an increase of ~10% is seen afterwards and coincides with
the burst activity detected from the source in 2006-2007. After these bursts,
the evolution towards more sinusoidal pulse profiles ceased while the pulsed
fraction showed a further increase. No evidence for large-scale, long-term
changes in the emission as a result of the bursts is seen. The data also
suggest a correlation between the flux and hardness of the spectrum, with
brighter observations on average having a harder spectrum. As pointed out by
other authors, we find that the standard blackbody plus power-law model does
not provide the best spectral fit to the emission from 4U 0142+61. We also
report on observations taken with the Gemini telescope after two bursts. These
observations show source magnitudes consistent with previous measurements. Our
results demonstrate the wide range of X-ray variability characteristics seen in
AXPs and we discuss them in light of current emission models for these sources.
| astro-ph | we present results obtained from xray observations of the anomalous xray pulsar axp 4u 014261 taken between 20002007 using xmmnewton chandra and swift in observations taken before 2006 the pulse profile is observed to become more sinusoidal and the pulsed fraction increased with time these results confirm those derived using the rossi xray timing explorer and expand the observed evolution to energies below 2 kev the xmmnewton total flux in the 0510 kev band is observed to be nearly constant in observations taken before 2006 while an increase of 10 is seen afterwards and coincides with the burst activity detected from the source in 20062007 after these bursts the evolution towards more sinusoidal pulse profiles ceased while the pulsed fraction showed a further increase no evidence for largescale longterm changes in the emission as a result of the bursts is seen the data also suggest a correlation between the flux and hardness of the spectrum with brighter observations on average having a harder spectrum as pointed out by other authors we find that the standard blackbody plus powerlaw model does not provide the best spectral fit to the emission from 4u 014261 we also report on observations taken with the gemini telescope after two bursts these observations show source magnitudes consistent with previous measurements our results demonstrate the wide range of xray variability characteristics seen in axps and we discuss them in light of current emission models for these sources | [['we', 'present', 'results', 'obtained', 'from', 'xray', 'observations', 'of', 'the', 'anomalous', 'xray', 'pulsar', 'axp', '4u', '014261', 'taken', 'between', '20002007', 'using', 'xmmnewton', 'chandra', 'and', 'swift', 'in', 'observations', 'taken', 'before', '2006', 'the', 'pulse', 'profile', 'is', 'observed', 'to', 'become', 'more', 'sinusoidal', 'and', 'the', 'pulsed', 'fraction', 'increased', 'with', 'time', 'these', 'results', 'confirm', 'those', 'derived', 'using', 'the', 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708.2757 | Twisted automorphisms of Hopf algebras | Twisted homomorphisms of bialgebras are bialgebra homomorphisms from the
first into Drinfeld twistings of the second. They possess a composition
operation extending composition of bialgebra homomorphisms. Gauge
transformations of twists, compatible with adjacent homomorphisms, give rise to
gauge transformation of twisted homomorphisms, which behave nicely with respect
to compositions. Here we study (gauge classes of) twisted automorphisms of
cocommutative Hopf algebras. After revising well-known relations between
twists, twisted forms of bialgebras and $R$-matrices (for commutative
bialgebras) we describe twisted automorphisms of universal enveloping algebras.
| math.QA math.CT | twisted homomorphisms of bialgebras are bialgebra homomorphisms from the first into drinfeld twistings of the second they possess a composition operation extending composition of bialgebra homomorphisms gauge transformations of twists compatible with adjacent homomorphisms give rise to gauge transformation of twisted homomorphisms which behave nicely with respect to compositions here we study gauge classes of twisted automorphisms of cocommutative hopf algebras after revising wellknown relations between twists twisted forms of bialgebras and rmatrices for commutative bialgebras we describe twisted automorphisms of universal enveloping algebras | [['twisted', 'homomorphisms', 'of', 'bialgebras', 'are', 'bialgebra', 'homomorphisms', 'from', 'the', 'first', 'into', 'drinfeld', 'twistings', 'of', 'the', 'second', 'they', 'possess', 'a', 'composition', 'operation', 'extending', 'composition', 'of', 'bialgebra', 'homomorphisms', 'gauge', 'transformations', 'of', 'twists', 'compatible', 'with', 'adjacent', 'homomorphisms', 'give', 'rise', 'to', 'gauge', 'transformation', 'of', 'twisted', 'homomorphisms', 'which', 'behave', 'nicely', 'with', 'respect', 'to', 'compositions', 'here', 'we', 'study', 'gauge', 'classes', 'of', 'twisted', 'automorphisms', 'of', 'cocommutative', 'hopf', 'algebras', 'after', 'revising', 'wellknown', 'relations', 'between', 'twists', 'twisted', 'forms', 'of', 'bialgebras', 'and', 'rmatrices', 'for', 'commutative', 'bialgebras', 'we', 'describe', 'twisted', 'automorphisms', 'of', 'universal', 'enveloping', 'algebras']] | [-0.23917772678569668, 0.16253117799004985, -0.06842002718310271, 0.08353967241765488, -0.22664028891761387, -0.17993876328580968, -0.06094303056375966, 0.4016528805340862, -0.4652817344204301, -0.2117561210990451, 0.03259362124039659, -0.2033613965336588, -0.13702460347641526, 0.1406864838763362, -0.20245788792436498, -0.08402890033487763, 0.08096434575106416, 0.09743047465703317, -0.23524234777765482, -0.2594162335264541, 0.5100660075300506, -0.02521000097927061, 0.20236578391354887, -0.05479639744208682, 0.089273996163337, -0.0025561086575700237, -0.026758137558187758, -0.07903759247468163, -0.22427127114497125, 0.07294967964602013, 0.33524302385436994, -0.045960285423678304, 0.02493200899057445, -0.39128568293970256, 0.019057663655119194, 0.1283553046287991, 0.11381451201443615, -0.044031437304857673, -0.006868596155462521, -0.3357068124404621, 0.04380137691762121, -0.2927216022702244, -0.06035983113300366, -0.12371125694231264, 0.07697131959277959, 0.004799181132555185, -0.2191234643373935, -0.0023832012055295523, 0.12773989839479327, 0.18873971880280546, -0.13261426014027425, -0.04659527544641778, -0.18500590630407845, 0.10201231705667894, -0.07467446576005646, -0.03870656229056684, 0.1998678172572649, -0.11709868508235861, -0.2548384557677699, 0.3693430388701104, 0.02157922993813242, -0.170479707530744, 0.0774111641540436, -0.17901520167166987, -0.2714047691718276, 0.1027451807610868, -0.030458357764430167, 0.09936914113461084, -0.029549871648972232, 0.22032586070417892, -0.18196896739703203, -0.07996202338974745, 0.21214743924515678, 0.014444838388867322, 0.19883112449731147, 0.026424007113313393, 0.03632585098966956, 0.20452773908064478, 0.20282832242637164, -0.0374820314602749, -0.38702430552110034, -0.16546151672567552, 0.08116440025124964, 0.22130625972446674, -0.09400270520026902, -0.2189183010874937, 0.450141190019037, 0.14117093390918203, 0.1574443511753565, 0.14231476563145407, 0.0843546868944984, 0.006144777583401827, 0.2644382138913941, -0.03593122814726528, 0.10391227622693848, 0.46911406362917096, -0.066158740199171, -0.05295103351575866, -0.1905479595020768, 0.3208402526298804] |
708.2758 | Twisted automorphisms of group algebras | We continue the study of twisted automorphisms of Hopf algebras started in
"Twisted automorphisms of Hopf algebras". In this paper we concentrate on the
group algebra case. We describe the group of twisted automorphisms of the group
algebra of a group of order coprime to 6. The description turns out to be very
similar to the one for the universal enveloping algebra given in "Twisted
automorphisms of Hopf algebras".
| math.RT math.QA | we continue the study of twisted automorphisms of hopf algebras started in twisted automorphisms of hopf algebras in this paper we concentrate on the group algebra case we describe the group of twisted automorphisms of the group algebra of a group of order coprime to 6 the description turns out to be very similar to the one for the universal enveloping algebra given in twisted automorphisms of hopf algebras | [['we', 'continue', 'the', 'study', 'of', 'twisted', 'automorphisms', 'of', 'hopf', 'algebras', 'started', 'in', 'twisted', 'automorphisms', 'of', 'hopf', 'algebras', 'in', 'this', 'paper', 'we', 'concentrate', 'on', 'the', 'group', 'algebra', 'case', 'we', 'describe', 'the', 'group', 'of', 'twisted', 'automorphisms', 'of', 'the', 'group', 'algebra', 'of', 'a', 'group', 'of', 'order', 'coprime', 'to', '6', 'the', 'description', 'turns', 'out', 'to', 'be', 'very', 'similar', 'to', 'the', 'one', 'for', 'the', 'universal', 'enveloping', 'algebra', 'given', 'in', 'twisted', 'automorphisms', 'of', 'hopf', 'algebras']] | [-0.25659493235466274, 0.06990378028780654, -0.09246848291461018, 0.026517117895401905, -0.16629083265644917, -0.07746263695340874, -0.033422325439143766, 0.3476992643613746, -0.39743229266984953, -0.18310733867026324, 0.15836863853610997, -0.21954585298679877, -0.14373726649479807, 0.16375052576641674, -0.17818461562358384, -0.07915687490848528, 0.054265399139536465, 0.18309703358597512, -0.17329366852029943, -0.26531739209009253, 0.4790609062824776, 0.03842948517843109, 0.19555075376874942, -0.017247160140802895, 0.05005349193200253, 0.014291444638123115, -0.060059693250535194, -0.04090209526644237, -0.17680392580349807, 0.05318202086440895, 0.304745908178713, -0.05113236928034736, 0.17708747963542523, -0.3803898619244928, -0.045784987455260925, 0.16326269452068684, 0.2189003204036018, 0.003973762329289879, -0.029699787856889485, -0.2470022180063677, 0.08484239901240537, -0.3100236251518346, -0.14930985916567885, -0.055294540859218956, 0.07696702585056209, -0.06982488536437892, -0.19213867764515075, -0.026173335014154083, 0.07336758036652337, 0.18660119194638633, -0.08580004491343879, -0.0413415126664483, -0.1253155351150781, 0.137264859450954, -0.0698180033730856, 0.005501146389481922, 0.15618928615003824, -0.10092222613984368, -0.17004000076997108, 0.3761517907344345, 0.01442830024820253, -0.18942754483525304, 0.09496057282735094, -0.2898617586309927, -0.2952797749903107, 0.09754907164344753, 0.10368566897670752, 0.1584304878960593, 0.009164238794018393, 0.16196391697757054, -0.192451066405013, -0.010419027312942173, 0.05665413420174973, -0.06294165381594845, 0.12405866003878739, 0.10724771518152261, 0.020802522503325472, 0.18939629587027634, 0.13217264475584353, -0.018775411382101585, -0.3630365520256801, -0.2058598282949432, 0.004758414886621893, 0.17484963528703953, -0.06358641691748863, -0.17488719868487207, 0.49665919243209605, 0.1773837243841178, 0.1525256471519453, 0.06121977649467147, 0.10802556999513636, 0.031170697086423203, 0.19645909379249898, 0.03757002088578715, 0.14314063422489856, 0.347620346866872, -0.057655863470627344, -0.14419720324593177, -0.1634288999400493, 0.27818036326409684] |
708.2759 | Phase effects on synchronization by dynamical relaying in delay-coupled
systems | Synchronization in an array of mutually coupled systems with a finite
time-delay in coupling is studied using Josephson junction as a model system.
The sum of the transverse Lyapunov exponents is evaluated as a function of the
parameters by linearizing the equation about the synchronization manifold. The
dependence of synchronization on damping parameter, coupling constant and
time-delay is studied numerically. The change in the dynamics of the system due
to time-delay and phase difference between the applied fields is studied. The
case where a small frequency detuning between the applied fields is also
discussed.
| nlin.CD | synchronization in an array of mutually coupled systems with a finite timedelay in coupling is studied using josephson junction as a model system the sum of the transverse lyapunov exponents is evaluated as a function of the parameters by linearizing the equation about the synchronization manifold the dependence of synchronization on damping parameter coupling constant and timedelay is studied numerically the change in the dynamics of the system due to timedelay and phase difference between the applied fields is studied the case where a small frequency detuning between the applied fields is also discussed | [['synchronization', 'in', 'an', 'array', 'of', 'mutually', 'coupled', 'systems', 'with', 'a', 'finite', 'timedelay', 'in', 'coupling', 'is', 'studied', 'using', 'josephson', 'junction', 'as', 'a', 'model', 'system', 'the', 'sum', 'of', 'the', 'transverse', 'lyapunov', 'exponents', 'is', 'evaluated', 'as', 'a', 'function', 'of', 'the', 'parameters', 'by', 'linearizing', 'the', 'equation', 'about', 'the', 'synchronization', 'manifold', 'the', 'dependence', 'of', 'synchronization', 'on', 'damping', 'parameter', 'coupling', 'constant', 'and', 'timedelay', 'is', 'studied', 'numerically', 'the', 'change', 'in', 'the', 'dynamics', 'of', 'the', 'system', 'due', 'to', 'timedelay', 'and', 'phase', 'difference', 'between', 'the', 'applied', 'fields', 'is', 'studied', 'the', 'case', 'where', 'a', 'small', 'frequency', 'detuning', 'between', 'the', 'applied', 'fields', 'is', 'also', 'discussed']] | [-0.2671724231121071, 0.1440439270179226, -0.0383062723211627, 0.018415463435651855, -0.018521251924771893, -0.15296898887274749, 0.011761515812472777, 0.32025231895200473, -0.2608076128514206, -0.2471399449723515, 0.08657312486258811, -0.23849851224928142, -0.16669560855928253, 0.2208621175241399, 0.031244967018868378, 0.050700157885736924, 0.0038665276729164923, 0.05883775851094818, -0.06098974512969243, -0.1813195188420805, 0.33877055813617846, 0.035919705247308344, 0.27691358233742575, 0.009976345867394133, 0.13483178025071926, -0.01211730933232986, 0.05837534114401391, 0.05039650110646765, -0.1199364288006612, 0.0012610980824745717, 0.2075615748490623, 0.013552557305492301, 0.25017620239188854, -0.3520258923774546, -0.20759499192663886, 0.09672337264179233, 0.1538512469368412, 0.10636126592834579, -0.005888607641533414, -0.3017521820382829, 0.0041642588404740425, -0.1448639183146681, -0.11375436293174256, -0.024186072975119696, 0.04586688483609481, 0.08096615779907146, -0.286290043935259, 0.09564107722581731, 0.011294090488747239, 0.08408123284499062, -0.039083743574434615, -0.038870838665814596, -0.02464151960064439, 0.1184025233849249, 0.05166614087957374, 0.01673281739188477, 0.10620705945048224, -0.09776364205940132, -0.08837549968999117, 0.3564031173851579, -0.10270188509565877, -0.25269749185981905, 0.14694608589188454, -0.12509687799227207, -0.04155958232350965, 0.08337666779171993, 0.178227704791154, 0.10475052422051259, -0.17036249966514197, 0.11117364017248273, 0.044461744332170865, 0.22812169707043373, 0.06674366538472315, 0.018529591200120273, 0.15481977616535855, 0.2024825728656922, 0.07712730777231937, 0.168030436463441, -0.06375810570217312, -0.1486268705946017, -0.2775710915076606, -0.06816082819305519, -0.21905051985200732, 0.05056946465071845, -0.11479531217365219, -0.15882205266624372, 0.428639325095301, 0.11681024992759241, 0.21116768427569657, 0.0008141583084386397, 0.2887585019653148, 0.20000189907125573, 0.04966957070319814, 0.002010424903772296, 0.31961472398116, 0.24416343401622106, 0.108029654373395, -0.3251098213826326, 0.04155562142841518, 0.0473647527173756] |
708.276 | Theoretic Limits on the Equation of State Parameter of Quintessence | The value of scalar field coupled to gravity should be less than the Planck
scale in the consistent theory of quantum gravity. It provides a theoretic
constraint on the equation of state parameter for the quintessence. In some
cases our theoretic constraints are more stringent than the constraints from
the present experiments.
| astro-ph hep-ph hep-th | the value of scalar field coupled to gravity should be less than the planck scale in the consistent theory of quantum gravity it provides a theoretic constraint on the equation of state parameter for the quintessence in some cases our theoretic constraints are more stringent than the constraints from the present experiments | [['the', 'value', 'of', 'scalar', 'field', 'coupled', 'to', 'gravity', 'should', 'be', 'less', 'than', 'the', 'planck', 'scale', 'in', 'the', 'consistent', 'theory', 'of', 'quantum', 'gravity', 'it', 'provides', 'a', 'theoretic', 'constraint', 'on', 'the', 'equation', 'of', 'state', 'parameter', 'for', 'the', 'quintessence', 'in', 'some', 'cases', 'our', 'theoretic', 'constraints', 'are', 'more', 'stringent', 'than', 'the', 'constraints', 'from', 'the', 'present', 'experiments']] | [-0.13092042987297575, 0.13258610631769094, -0.14392069643005156, 0.10687270262636818, -0.14400722025535428, -0.17449344758642837, 0.0025741860892874403, 0.22441529894534212, -0.188126638218259, -0.3367404826343633, 0.09680444374232768, -0.3013366821150367, -0.06354854743068035, 0.2542843114441404, -0.016007613766795166, 0.04816956604974201, -0.0019460497244905967, 0.11800904736782496, -0.0862822918033299, -0.2642746430176955, 0.34074259595049977, 0.09965520515778245, 0.21683661999682394, 0.014887023941040613, 0.04525160142041456, -0.08069402554359001, 0.01790933724707709, 0.04572496768962363, -0.18144342460884497, 0.1295538689188946, 0.17198157450184226, 0.1460999329126655, 0.23883900626634175, -0.4627125520626298, -0.299254555398455, 0.0660407983769591, 0.08885319838121247, 0.13086377581259093, -0.014462405116389094, -0.3092267634347081, 0.0634323724348528, -0.12558547407836437, -0.05628330806771723, -0.03328692636345155, -0.03725099305470044, -0.09255318347221383, -0.2917242464251243, 0.1204591155759632, -0.04296542570227757, 0.010394038560871895, -0.09207225954518296, -0.12259581154928757, -0.006301805766550108, 0.019128565694420382, 0.0802118696200733, 0.06140548923017027, 0.13236059921865279, -0.22298578589330786, -0.05739728922176605, 0.439281141743637, -0.10143128169371406, -0.2444243248229703, 0.13599384051317778, -0.13186276693326923, -0.1848997257363338, 0.05606308572280865, 0.1010907232367362, 0.1395277653534252, -0.12627287400671497, 0.14566855317948815, -0.028191453938444074, 0.19685082571007884, 0.008377606035747494, 0.08254295213219638, 0.2474351882074888, 0.1451978640845762, 0.1337509619748184, 0.12104200324392878, -0.0100988872626868, -0.16679506025348717, -0.3684428529097484, -0.11752979332008041, -0.13740846627535155, 0.05061419612656419, -0.18365643468076506, -0.09339649203376701, 0.35208508607823974, 0.22446282476616594, 0.13958569816671884, 0.08726045281554644, 0.29320387807316506, 0.1501788119001923, 0.06584290587880577, 0.034580439812718675, 0.345284702859107, 0.15655516519641074, 0.07499615106588373, -0.21859363349638164, -0.01347628756103894, -0.004988263934277571] |
708.2761 | Nuclei of categories with tensor products | Following the analogy between algebras (monoids) and monoidal categories the
construction of nucleus for non-associative algebras is simulated on the
categorical level. Nuclei of categories of modules are considered as an
example.
| math.CT | following the analogy between algebras monoids and monoidal categories the construction of nucleus for nonassociative algebras is simulated on the categorical level nuclei of categories of modules are considered as an example | [['following', 'the', 'analogy', 'between', 'algebras', 'monoids', 'and', 'monoidal', 'categories', 'the', 'construction', 'of', 'nucleus', 'for', 'nonassociative', 'algebras', 'is', 'simulated', 'on', 'the', 'categorical', 'level', 'nuclei', 'of', 'categories', 'of', 'modules', 'are', 'considered', 'as', 'an', 'example']] | [-0.0938785387261305, 0.026289228892437677, -0.031919951434247196, 0.20549258347091381, -0.03925564934615977, -0.12832802921911934, -0.06501933978870511, 0.42143301432952285, -0.38735692854970694, -0.22421064478112385, 0.08307412336580455, -0.2309751873449386, -0.07716372853610665, 0.20502245728857815, -0.1963035316875903, -0.18342803287669085, 0.048239577416097745, 0.12381244610878639, -0.09442430743365549, -0.22868684236891568, 0.5461911031743512, 0.09609845325758215, 0.2502847012365237, -0.03149081371861939, 0.12125691499386448, 0.0024511568917660043, -0.027501350748934783, -0.011398503847885877, -0.06877408319269307, 0.09305339228012599, 0.38635626796167344, 0.04230352575541474, 0.16849293612176552, -0.39649003063095734, -0.02826092774830613, 0.12451145632076077, 0.1179260384378722, 0.04734215509961359, -0.06075036678885226, -0.32640206324867904, 0.001516991513199173, -0.32805787364486605, -0.025469586078543216, -0.05967974351369776, 0.15671911259414628, 0.03346117940964177, -0.23228159872815013, -0.03405722073512152, 0.09408436616649851, 0.18287409405456856, -0.19200796824588906, -0.13404264743439853, -0.08063095581019297, 0.14360994362505153, -0.07518704547692323, -0.0641571677651882, 0.23863893491216004, -0.12662852070934605, -0.24871239873755258, 0.3524799220613204, 0.10454968214617111, -0.1506306577794021, 0.1725121099734679, -0.10926378928706981, -0.1711103688721778, 0.09160714701283723, 0.019735783505893778, 0.10775354786892422, -0.050443172665836755, 0.14972988751651428, -0.1822984540485777, 0.044129383724794025, 0.10746138707327191, 0.02912043745163828, 0.17552826476457994, 0.22266704167122953, -0.08274295946466736, 0.12966657782089897, 0.05196871175576234, -0.058127958356635645, -0.39143719302956015, -0.16558275209627027, 0.003101803478784859, 0.059807832149090245, -0.06788838482998472, -0.16154126735636964, 0.36771743453573436, 0.09550358506385237, 0.13632325278013013, 0.13661671843146905, 0.1986032665008679, -0.020198852584144333, 0.12899382138857618, -0.07341683302365709, 0.1363278389617335, 0.36485426768194884, -0.038506262164446525, -0.026030722954601515, -0.04622891098551918, 0.23038266171352006] |
708.2762 | Digital Frequency Domain Multiplexer for mm-Wavelength Telescopes | An FPGA based digital signal processing (DSP) system for biasing and reading
out multiplexed bolometric detectors for mm-wavelength telescopes is presented.
This readout system is being deployed for balloon-borne and ground based
cosmology experiments with the primary goal of measuring the signature of
inflation with the Cosmic Microwave Background Radiation. The system consists
of analog superconducting electronics running at 250mK and 4K, coupled to
digital room temperature backend electronics described here. The digital
electronics perform the real time functionality with DSP algorithms implemented
in firmware. A soft embedded processor provides all of the slow housekeeping
control and communications. Each board in the system synthesizes
multi-frequency combs of 8 to 32 carriers in the MHz band to bias the
detectors. After the carriers have been modulated with the sky-signal by the
detectors, the same boards digitize the comb directly. The carriers are mixed
down to base-band and low pass filtered. The signal bandwidth of 0.050 Hz - 100
Hz places extreme requirements on stability and requires powerful filtering
techniques to recover the sky-signal from the MHz carriers.
| physics.ins-det | an fpga based digital signal processing dsp system for biasing and reading out multiplexed bolometric detectors for mmwavelength telescopes is presented this readout system is being deployed for balloonborne and ground based cosmology experiments with the primary goal of measuring the signature of inflation with the cosmic microwave background radiation the system consists of analog superconducting electronics running at 250mk and 4k coupled to digital room temperature backend electronics described here the digital electronics perform the real time functionality with dsp algorithms implemented in firmware a soft embedded processor provides all of the slow housekeeping control and communications each board in the system synthesizes multifrequency combs of 8 to 32 carriers in the mhz band to bias the detectors after the carriers have been modulated with the skysignal by the detectors the same boards digitize the comb directly the carriers are mixed down to baseband and low pass filtered the signal bandwidth of 0050 hz 100 hz places extreme requirements on stability and requires powerful filtering techniques to recover the skysignal from the mhz carriers | [['an', 'fpga', 'based', 'digital', 'signal', 'processing', 'dsp', 'system', 'for', 'biasing', 'and', 'reading', 'out', 'multiplexed', 'bolometric', 'detectors', 'for', 'mmwavelength', 'telescopes', 'is', 'presented', 'this', 'readout', 'system', 'is', 'being', 'deployed', 'for', 'balloonborne', 'and', 'ground', 'based', 'cosmology', 'experiments', 'with', 'the', 'primary', 'goal', 'of', 'measuring', 'the', 'signature', 'of', 'inflation', 'with', 'the', 'cosmic', 'microwave', 'background', 'radiation', 'the', 'system', 'consists', 'of', 'analog', 'superconducting', 'electronics', 'running', 'at', '250mk', 'and', '4k', 'coupled', 'to', 'digital', 'room', 'temperature', 'backend', 'electronics', 'described', 'here', 'the', 'digital', 'electronics', 'perform', 'the', 'real', 'time', 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708.2763 | Diagnosing GRB Prompt Emission Site with Spectral Cut-Off Energy | The site and mechanism of gamma-ray burst (GRB) prompt emission is still
unknown. Although internal shocks have been widely discussed as the emission
site of GRBs, evidence supporting other emission sites have been also suggested
recently, including the closer-in photosphere where the fireball becomes
transparent and further-out radii near the fireball deceleration radius where
magnetic dissipation may be important. With the successful operation of the
GLAST experiment, prompt high energy emission spectra from many GRBs would be
detected in the near future. We suggest that the cut-off energy of the prompt
emission spectrum from a GRB depends on both the fireball bulk Lorentz factor
and the unknown emission radius from the central engine. If the bulk Lorentz
factor could be independently measured (e.g. from early afterglow
observations), the observed spectral cutoff energy can be used to diagnose the
emission site of gamma-rays. This would provide valuable information to
understand the physical origin of the GRB promp emission.
| astro-ph | the site and mechanism of gammaray burst grb prompt emission is still unknown although internal shocks have been widely discussed as the emission site of grbs evidence supporting other emission sites have been also suggested recently including the closerin photosphere where the fireball becomes transparent and furtherout radii near the fireball deceleration radius where magnetic dissipation may be important with the successful operation of the glast experiment prompt high energy emission spectra from many grbs would be detected in the near future we suggest that the cutoff energy of the prompt emission spectrum from a grb depends on both the fireball bulk lorentz factor and the unknown emission radius from the central engine if the bulk lorentz factor could be independently measured eg from early afterglow observations the observed spectral cutoff energy can be used to diagnose the emission site of gammarays this would provide valuable information to understand the physical origin of the grb promp emission | [['the', 'site', 'and', 'mechanism', 'of', 'gammaray', 'burst', 'grb', 'prompt', 'emission', 'is', 'still', 'unknown', 'although', 'internal', 'shocks', 'have', 'been', 'widely', 'discussed', 'as', 'the', 'emission', 'site', 'of', 'grbs', 'evidence', 'supporting', 'other', 'emission', 'sites', 'have', 'been', 'also', 'suggested', 'recently', 'including', 'the', 'closerin', 'photosphere', 'where', 'the', 'fireball', 'becomes', 'transparent', 'and', 'furtherout', 'radii', 'near', 'the', 'fireball', 'deceleration', 'radius', 'where', 'magnetic', 'dissipation', 'may', 'be', 'important', 'with', 'the', 'successful', 'operation', 'of', 'the', 'glast', 'experiment', 'prompt', 'high', 'energy', 'emission', 'spectra', 'from', 'many', 'grbs', 'would', 'be', 'detected', 'in', 'the', 'near', 'future', 'we', 'suggest', 'that', 'the', 'cutoff', 'energy', 'of', 'the', 'prompt', 'emission', 'spectrum', 'from', 'a', 'grb', 'depends', 'on', 'both', 'the', 'fireball', 'bulk', 'lorentz', 'factor', 'and', 'the', 'unknown', 'emission', 'radius', 'from', 'the', 'central', 'engine', 'if', 'the', 'bulk', 'lorentz', 'factor', 'could', 'be', 'independently', 'measured', 'eg', 'from', 'early', 'afterglow', 'observations', 'the', 'observed', 'spectral', 'cutoff', 'energy', 'can', 'be', 'used', 'to', 'diagnose', 'the', 'emission', 'site', 'of', 'gammarays', 'this', 'would', 'provide', 'valuable', 'information', 'to', 'understand', 'the', 'physical', 'origin', 'of', 'the', 'grb', 'promp', 'emission']] | [-0.030459824233100966, 0.1713841935457029, -0.08163258941091883, 0.18246776815533686, -0.13587997843606922, -0.12183455297221932, 0.0044745631957760984, 0.46043076829459423, -0.20118965227335978, -0.3213845166312053, 0.0539136917639273, -0.3005175473443113, 0.03509776137518482, 0.2250182846775995, 0.02899259829129546, -0.020176219497210324, 0.05115380363750797, -0.023866755990662243, -0.0064326444766126, -0.1400382983379248, 0.2648863470575844, 0.21353947353334382, 0.2318081539484317, 0.11154933081856236, 0.02551374892787769, -0.07958171763143931, -0.018484596733171016, -0.05068527316623845, -0.10098701066980982, 0.011747761599205356, 0.22163620454151756, 0.13257944234049854, 0.16683875562814185, -0.42010614045489675, -0.3054989151140221, 0.13390358430348362, 0.16156143200975912, 0.013747957830603879, -0.04222582394439273, -0.29511316681209093, -0.0074440713245003745, -0.1993574372564371, -0.17337029459528053, 0.05187923859995909, 0.03610761924116956, 0.032036770111284196, -0.1876105944124552, 0.09790446556853101, -0.0065817504207818555, 0.015277826421273252, -0.08689912535900919, -0.022793167648323547, -0.04234108379862916, 0.08177514778724752, 0.12628904155616721, 0.0711058785934419, 0.2102701504332706, -0.11075669782122788, -0.0823444423537391, 0.4403001263928719, -0.03358254250204668, 0.03809403001856154, 0.19092072514841, -0.23056336914380202, -0.17174019404830268, 0.22799490799661726, 0.1312689255648412, 0.053407317927429594, -0.16437485374104327, -0.018388276099964667, 0.016236725030466914, 0.1714586968659065, 0.03626609736462482, 0.11105774358237305, 0.3116984070899586, 0.13809119404415982, -0.030397308015380986, 0.09830658129104473, -0.22437247194988558, 0.025023155726301365, -0.3110938654878201, -0.10844444846794105, -0.1932494060572189, 0.13360209969911152, -0.10868868358011241, -0.08990911349582557, 0.39869513099965376, 0.1101920903512599, 0.19344991885830098, -0.052724818706524394, 0.2681707482402905, 0.1020284150092779, 0.08355997711455879, 0.1469022775746476, 0.3888840029069867, 0.0866226550275221, 0.12140663333822233, -0.21083297452423722, 0.14259592006699398, 0.008760009963925067] |
708.2764 | Maxima of Moving Sums in a Poisson Random Field | The extremal tail probabilities of moving sums in a marked Poisson random
field is examined here. These sums are computed by adding up the weighted
occurrences of events lying within a scanning set of fixed shape and size.
Change of measure and analysis of local random fields are used to provide tail
probabilities. The asymptotic constants are initially expressed in a form that
seems hard to evaluate and do not seem to provide any additional information on
the properties of the constants. A more sophisticated approach is then
undertaken giving rise to an expression that is not only neater but also able
to provide computable bounds. The technique used to obtain this constant can
also be modified to work on continuous processes.
| math.PR | the extremal tail probabilities of moving sums in a marked poisson random field is examined here these sums are computed by adding up the weighted occurrences of events lying within a scanning set of fixed shape and size change of measure and analysis of local random fields are used to provide tail probabilities the asymptotic constants are initially expressed in a form that seems hard to evaluate and do not seem to provide any additional information on the properties of the constants a more sophisticated approach is then undertaken giving rise to an expression that is not only neater but also able to provide computable bounds the technique used to obtain this constant can also be modified to work on continuous processes | [['the', 'extremal', 'tail', 'probabilities', 'of', 'moving', 'sums', 'in', 'a', 'marked', 'poisson', 'random', 'field', 'is', 'examined', 'here', 'these', 'sums', 'are', 'computed', 'by', 'adding', 'up', 'the', 'weighted', 'occurrences', 'of', 'events', 'lying', 'within', 'a', 'scanning', 'set', 'of', 'fixed', 'shape', 'and', 'size', 'change', 'of', 'measure', 'and', 'analysis', 'of', 'local', 'random', 'fields', 'are', 'used', 'to', 'provide', 'tail', 'probabilities', 'the', 'asymptotic', 'constants', 'are', 'initially', 'expressed', 'in', 'a', 'form', 'that', 'seems', 'hard', 'to', 'evaluate', 'and', 'do', 'not', 'seem', 'to', 'provide', 'any', 'additional', 'information', 'on', 'the', 'properties', 'of', 'the', 'constants', 'a', 'more', 'sophisticated', 'approach', 'is', 'then', 'undertaken', 'giving', 'rise', 'to', 'an', 'expression', 'that', 'is', 'not', 'only', 'neater', 'but', 'also', 'able', 'to', 'provide', 'computable', 'bounds', 'the', 'technique', 'used', 'to', 'obtain', 'this', 'constant', 'can', 'also', 'be', 'modified', 'to', 'work', 'on', 'continuous', 'processes']] | [-0.08668245464567187, 0.12153360262605244, -0.12958526113223223, 0.10306318157512817, -0.096804597470375, -0.13035007670033175, 0.08996760933044497, 0.3972782304082982, -0.26170319934102676, -0.28999448473733225, 0.09813987669061686, -0.25160309033407297, -0.1262046343410296, 0.20143673585090388, -0.06011945832726836, 0.032671295178932, 0.009659964748711676, 0.08966776933478092, -0.05864956393288296, -0.26701817055400767, 0.2760835830255824, 0.05139278777355909, 0.2249617020668248, 0.053561869462413834, 0.055971528769882976, -0.01575957957013953, -0.0632038904949412, 0.048357623323920323, -0.16028896704391046, 0.14639079489852072, 0.22287055885526122, 0.11872352201674806, 0.2392058498378782, -0.4245900712510357, -0.1729615944529288, 0.1367803129088897, 0.16191239254625484, 0.0803523054499118, -0.0064829198065544024, -0.2563475999145265, 0.10150846855077496, -0.12492862656344202, -0.1473167283674244, -0.1358036435014553, 0.0064348911753947255, 0.049104032530372994, -0.29721478206013924, 0.05227209643611577, 0.07417240487812392, 0.018297922293670842, -0.038322096112275834, -0.10123922946465919, 0.026509670363204767, 0.1504137156012117, 0.04926951735120145, 0.029791558721507364, 0.1206694162588139, -0.08331516712132725, -0.10732211404266294, 0.3579047025376015, -0.0633811681554271, -0.2333172497580011, 0.1747289069806088, -0.15261663094956857, -0.12967914598993957, 0.15986418537413855, 0.18544245258614908, 0.13294539144109996, -0.18187535821353315, 0.0635550799459929, -0.03441117889415778, 0.15982713549374986, 0.09973113356181039, 0.03991228931384985, 0.1761028002146021, 0.053884119116014144, 0.06991637756353336, 0.14184888497617126, -0.06414215546864711, -0.08252254720074964, -0.3177456086249564, -0.11149213240161295, -0.18135853925506112, 0.07233037442072929, -0.08877093400617729, -0.22768757994511912, 0.3432616158636653, 0.12915948894042828, 0.23946537590036016, 0.08312282328814512, 0.23744259425057251, 0.16280645640010155, 0.05668819139112306, 0.0582019210388487, 0.1915338684529921, 0.13235007494604062, 0.034520797568877215, -0.12499251685364814, 0.1291358694586842, 0.0631231057198077] |
708.2765 | Doublon-Holon Binding Effects on Mott Transitions in Two-Dimensional
Bose Hubbard Model | A mechanism of Mott transitions in a Bose Hubbard model on a square lattice
is studied, using a variational Monte Carlo method. Besides an onsite
correlation factor, we introduce a four-body doublon-holon factor into the
trial state, which considerably improves the variational energy and can
appropriately describe a superfluid-insulator transition. Its essense consists
in binding (and unbinding) of a doublon to a holon in a finite short range,
identical with the cases of fermions. The features of this transition are
qualitatively different from those of Brinkman-Rice-type transitions.
| cond-mat.str-el cond-mat.stat-mech | a mechanism of mott transitions in a bose hubbard model on a square lattice is studied using a variational monte carlo method besides an onsite correlation factor we introduce a fourbody doublonholon factor into the trial state which considerably improves the variational energy and can appropriately describe a superfluidinsulator transition its essense consists in binding and unbinding of a doublon to a holon in a finite short range identical with the cases of fermions the features of this transition are qualitatively different from those of brinkmanricetype transitions | [['a', 'mechanism', 'of', 'mott', 'transitions', 'in', 'a', 'bose', 'hubbard', 'model', 'on', 'a', 'square', 'lattice', 'is', 'studied', 'using', 'a', 'variational', 'monte', 'carlo', 'method', 'besides', 'an', 'onsite', 'correlation', 'factor', 'we', 'introduce', 'a', 'fourbody', 'doublonholon', 'factor', 'into', 'the', 'trial', 'state', 'which', 'considerably', 'improves', 'the', 'variational', 'energy', 'and', 'can', 'appropriately', 'describe', 'a', 'superfluidinsulator', 'transition', 'its', 'essense', 'consists', 'in', 'binding', 'and', 'unbinding', 'of', 'a', 'doublon', 'to', 'a', 'holon', 'in', 'a', 'finite', 'short', 'range', 'identical', 'with', 'the', 'cases', 'of', 'fermions', 'the', 'features', 'of', 'this', 'transition', 'are', 'qualitatively', 'different', 'from', 'those', 'of', 'brinkmanricetype', 'transitions']] | [-0.12667549674420855, 0.22676009347619688, -0.08139413767115235, 0.09821799144062192, 0.02544028101878804, -0.15779146303011235, 0.11475860542985936, 0.3835259450756576, -0.21998398162446223, -0.2478571939173826, -0.01775967645280193, -0.3137446340974854, -0.11866067128856991, 0.1016010029625884, 0.07304392341621826, 0.015159781436777002, 0.054546388115214055, -0.002019653627432363, -0.1532606147121378, -0.1988809435658135, 0.3029180370314523, 0.01501034926298226, 0.254766711393956, 0.08177267836114435, 0.075262242689902, 0.021594042827505187, 0.11046552533543734, 0.01031085161025129, -0.16473848798832055, 0.08138868456224499, 0.21654579558593848, -0.019591702830566222, 0.266866524682142, -0.36605890677851993, -0.2279847152611521, 0.04487833740774456, 0.1688331145154269, 0.18950463108160684, -0.011327423438224075, -0.32318427088280577, -0.04493537277719656, -0.24196682902876027, -0.09234663012686598, -0.08910582112865847, -0.04422820045688558, 0.031481620817726784, -0.2999110303245225, 0.12335251204582841, 0.02833350419965681, 0.04883699074149305, -0.06887492130992415, -0.11156061691838469, -0.009682435523393715, 0.07567403147668512, 0.0007555076993222154, 0.06498157480111627, 0.09912775243567519, -0.14975024704269113, -0.13114266458094706, 0.40386442723142546, -0.05969467857679309, -0.15753288857292297, 0.19753565576447304, -0.10918176448145925, -0.10007631901088496, 0.1903539357830765, 0.12161003880549309, 0.09200813975943209, -0.16814708049127527, 0.08130776402838312, -0.026804826369909787, 0.18364780022611105, -0.03549846467226311, 0.001424923495844353, 0.18541704464790432, 0.22654536235427788, 0.035119933740853135, 0.20972033930119388, -0.0895028870233313, -0.18128313048374514, -0.276567482497803, -0.1457550316767464, -0.2423236906869597, 0.043095703355881365, -0.0636795624372479, -0.21216473055916818, 0.4564945990501275, 0.11406945378714523, 0.2189827992873223, 0.03168553688027354, 0.19775109709955233, 0.13201165176538188, 0.04686973271092811, 0.017940463871846713, 0.2002660120298631, 0.0911243712464564, 0.03955029990851641, -0.26717184419841183, -0.003729642439243752, 0.14268264121397636] |
708.2766 | Operator ordering in Two-dimensional N=1 supersymmetry with curved
manifold | We investigate an operator ordering problem in two-dimensional N=1
supersymmetric model which consists of n real superfields. There arises an
operator ordering problem when the target space is curved. We have to fix the
ordering in quantum operator properly to obtain the correct supersymmetry
algebra. We demonstrate that the super-Poincar\'{e} algebra fixes the correct
operator ordering. We obtain a supercurrent with correct operator ordering and
a central extension of supersymmetry algebra.
| hep-th | we investigate an operator ordering problem in twodimensional n1 supersymmetric model which consists of n real superfields there arises an operator ordering problem when the target space is curved we have to fix the ordering in quantum operator properly to obtain the correct supersymmetry algebra we demonstrate that the superpoincare algebra fixes the correct operator ordering we obtain a supercurrent with correct operator ordering and a central extension of supersymmetry algebra | [['we', 'investigate', 'an', 'operator', 'ordering', 'problem', 'in', 'twodimensional', 'n1', 'supersymmetric', 'model', 'which', 'consists', 'of', 'n', 'real', 'superfields', 'there', 'arises', 'an', 'operator', 'ordering', 'problem', 'when', 'the', 'target', 'space', 'is', 'curved', 'we', 'have', 'to', 'fix', 'the', 'ordering', 'in', 'quantum', 'operator', 'properly', 'to', 'obtain', 'the', 'correct', 'supersymmetry', 'algebra', 'we', 'demonstrate', 'that', 'the', 'superpoincare', 'algebra', 'fixes', 'the', 'correct', 'operator', 'ordering', 'we', 'obtain', 'a', 'supercurrent', 'with', 'correct', 'operator', 'ordering', 'and', 'a', 'central', 'extension', 'of', 'supersymmetry', 'algebra']] | [-0.16760270183407505, 0.15278482425697212, -0.02574576642101919, 0.10316434780194779, -0.14097472248782575, -0.13673091774255458, -0.023599696086562226, 0.3678990197958241, -0.2796427526996589, -0.25358978818944644, 0.0879912982419343, -0.31028911113266794, -0.15422573895849498, 0.001989810015927528, -0.07693294506244572, 0.017560158056062713, 0.024054410880510236, 0.09829832633143999, -0.132828545648421, -0.20769659794611253, 0.3493282753895496, -0.01206820932525197, 0.2168526315641865, 0.037503736723574294, 0.17374053211804008, 0.062231149452305595, 0.0555894968270416, -0.0472802340293231, -0.10148280522260163, 0.058037355447083085, 0.26133615759686685, 0.1026682047776773, 0.14959126642682183, -0.40535634017588806, -0.14138750690625798, 0.16336239669734323, 0.181115061582499, 0.09710488802077852, -0.035431774375750354, -0.25256138230004993, 0.10467915289418799, -0.1807362968495614, -0.14631392330613355, -0.09793981559522136, 0.0026684189871163436, -0.18071331933770382, -0.30827860775547966, 0.05606015695547554, 0.09132103191714891, 0.07917030968926322, -0.08981213309395482, -0.06764618775308867, -0.06556906579980548, 0.05161136676578677, 0.03300448254072173, 0.05646460534165233, 0.10045408654931776, -0.1112416436712087, -0.1644003770615853, 0.3578965145517403, -0.012937758203176126, -0.2724070162332, 0.05559514350139759, -0.1710183046836878, -0.16726726937947245, 0.041102174236635924, 0.06587230432516253, 0.13538532971050327, -0.11088428105671175, 0.25768898427404435, -0.12131695417543008, 0.1567295318285764, 0.036614475063454936, -0.0011808726031490614, 0.16897998999436975, 0.12599834089797043, 0.1702434890329654, 0.15232313514201784, 0.05675613550915265, -0.09044363049127843, -0.4081277256490479, -0.18267919381581982, -0.12280478123837793, 0.0795801884796418, -0.11471601706108858, -0.18905573472065826, 0.407613195078841, 0.21266997118913372, 0.23380026873201132, 0.018176134533091436, 0.17818945512490372, 0.2061845619546276, 0.09220342671262546, 0.0321854828679803, 0.14404121299707134, 0.17184141221862864, 0.07183332286748878, -0.26362919464418794, -0.08059427896383363, 0.19268139993483333] |
708.2767 | Equivalence Principle and the Gauge Hierarchy Problem | We show that the gauge hierarchy problem can be solved in the framework of
scalar-tensor theories of gravity very much in the same way as it is solved in
the Randall-Sundrum scenario. Our solution involves a fine-tuning of the
gravitational sector. However our mechanism does not require the introduction
of extra-dimensions or new physics strongly coupled to the standard model in
the low energy regime. We do introduce a new scalar field which is however
coupled only gravitationally to regular matter. The physical reason for the
splitting between the weak scale and the Planck scale is a violation of the
Einstein's equivalence principle.
| hep-ph hep-th | we show that the gauge hierarchy problem can be solved in the framework of scalartensor theories of gravity very much in the same way as it is solved in the randallsundrum scenario our solution involves a finetuning of the gravitational sector however our mechanism does not require the introduction of extradimensions or new physics strongly coupled to the standard model in the low energy regime we do introduce a new scalar field which is however coupled only gravitationally to regular matter the physical reason for the splitting between the weak scale and the planck scale is a violation of the einsteins equivalence principle | [['we', 'show', 'that', 'the', 'gauge', 'hierarchy', 'problem', 'can', 'be', 'solved', 'in', 'the', 'framework', 'of', 'scalartensor', 'theories', 'of', 'gravity', 'very', 'much', 'in', 'the', 'same', 'way', 'as', 'it', 'is', 'solved', 'in', 'the', 'randallsundrum', 'scenario', 'our', 'solution', 'involves', 'a', 'finetuning', 'of', 'the', 'gravitational', 'sector', 'however', 'our', 'mechanism', 'does', 'not', 'require', 'the', 'introduction', 'of', 'extradimensions', 'or', 'new', 'physics', 'strongly', 'coupled', 'to', 'the', 'standard', 'model', 'in', 'the', 'low', 'energy', 'regime', 'we', 'do', 'introduce', 'a', 'new', 'scalar', 'field', 'which', 'is', 'however', 'coupled', 'only', 'gravitationally', 'to', 'regular', 'matter', 'the', 'physical', 'reason', 'for', 'the', 'splitting', 'between', 'the', 'weak', 'scale', 'and', 'the', 'planck', 'scale', 'is', 'a', 'violation', 'of', 'the', 'einsteins', 'equivalence', 'principle']] | [-0.14549970904419435, 0.1534839363913368, -0.08496391223924397, 0.14441866525652303, -0.13970842718110574, -0.167650773714396, -0.014158020872007874, 0.2682882550995327, -0.268750524962122, -0.3532381571232549, 0.06097727751775274, -0.19900299345586195, -0.11408759760263476, 0.14794064906552362, -0.024930683995407182, 0.007974516274859605, 0.021228963441387253, 0.04075701952486941, -0.050049298968464495, -0.23078229508783163, 0.3634459401290972, 0.06137150345207418, 0.2632887816707631, 0.07282762127268372, 0.1068675901324859, -0.051842312362424814, 0.02763797927340402, 0.03462090900222075, -0.0640786235852679, 0.09750082463057694, 0.1808624305916064, 0.1376443087548307, 0.24338857237774048, -0.41864639313810154, -0.24193766161582422, 0.12168772165093897, 0.14901668928762518, 0.17876250422175394, -0.056124692778238686, -0.2725407996766486, 0.054091745788611256, -0.162343670808466, -0.11552591032226507, -0.047511702747020906, -0.05739159339437605, -0.0951825151495744, -0.26992664221240187, 0.10949807122431117, 0.03886654971221697, -0.03600421886059266, -0.037525765951869794, -0.0334597080041772, 0.012770638778552558, 0.03644569660989043, 0.1003114029107326, 0.03420525174859224, 0.1045317908577187, -0.18128318557158582, -0.08074037534596164, 0.46610911226677665, -0.12783381812165953, -0.22894686707792786, 0.20746874241881724, -0.1461395118747232, -0.16458703155032567, 0.06769551444590742, 0.13119329135973476, 0.16232470299108226, -0.15667951420781392, 0.18490155297077207, -0.048938999892872516, 0.2112415064198589, 0.027185953665271545, 0.04091217628797715, 0.28202795447528506, 0.16538718508701156, 0.07284723049780191, 0.07136284938710516, -0.02951963327924531, -0.12430435449825329, -0.3792130516172902, -0.13555826447470096, -0.15646185796454692, 0.03617625620718525, -0.08413240667960936, -0.1443015192997036, 0.36773927743971635, 0.16507372321579064, 0.14351385232350491, 0.06625624691945438, 0.2396480226527574, 0.10675469454088547, 0.12322588193680169, 0.04397321334651228, 0.3589727368332373, 0.10232276221493132, 0.12777575847322067, -0.2324112774499068, -0.017481613085939755, 0.0786514723112861] |
708.2768 | A new test of the light dark matter hypothesis | Detection of a surprisingly high flux of positron annihilation radiation from
the inner galaxy has motivated the proposal that dark matter is made of weakly
interacting light particles (possibly as light as the electron). This scenario
is extremely hard to test in current high energy physics experiments. Here,
however, we demonstrate that the current value of the electron anomalous
magnetic moment already has the required precision to unambiguously test the
light dark matter hypothesis. If confirmed, the implications for astrophysics
are far-reaching.
| hep-ph | detection of a surprisingly high flux of positron annihilation radiation from the inner galaxy has motivated the proposal that dark matter is made of weakly interacting light particles possibly as light as the electron this scenario is extremely hard to test in current high energy physics experiments here however we demonstrate that the current value of the electron anomalous magnetic moment already has the required precision to unambiguously test the light dark matter hypothesis if confirmed the implications for astrophysics are farreaching | [['detection', 'of', 'a', 'surprisingly', 'high', 'flux', 'of', 'positron', 'annihilation', 'radiation', 'from', 'the', 'inner', 'galaxy', 'has', 'motivated', 'the', 'proposal', 'that', 'dark', 'matter', 'is', 'made', 'of', 'weakly', 'interacting', 'light', 'particles', 'possibly', 'as', 'light', 'as', 'the', 'electron', 'this', 'scenario', 'is', 'extremely', 'hard', 'to', 'test', 'in', 'current', 'high', 'energy', 'physics', 'experiments', 'here', 'however', 'we', 'demonstrate', 'that', 'the', 'current', 'value', 'of', 'the', 'electron', 'anomalous', 'magnetic', 'moment', 'already', 'has', 'the', 'required', 'precision', 'to', 'unambiguously', 'test', 'the', 'light', 'dark', 'matter', 'hypothesis', 'if', 'confirmed', 'the', 'implications', 'for', 'astrophysics', 'are', 'farreaching']] | [-0.08133899026107407, 0.1963772899868739, -0.10549186371698431, 0.1272395781153336, -0.09329107406026707, -0.11860045658356351, 0.00648868820280768, 0.33988354759427103, -0.20173186893438602, -0.3958778152605746, 0.054334568433327284, -0.2697667495188553, -0.02777130181174271, 0.24088011236815918, 0.02154788939373159, 0.06138743188164038, 0.04611445888706551, 0.020223029025989336, -0.010371758764405258, -0.24279846296441265, 0.2869546694692406, 0.13332724354865894, 0.26043285792352766, 0.13737804986104915, 0.10146420963517414, -0.03063883320087703, -0.024263381764928742, -0.009553809922824546, -0.056338698382627096, 0.06234908437856087, 0.20302286094463454, 0.09516398886191338, 0.19313427163628724, -0.4336847907795412, -0.24353033058322604, 0.15594292880978616, 0.15104636670908006, 0.07817250177286929, -0.16514521229745274, -0.2655781670814244, 0.029341821308906484, -0.17440089909643752, -0.18072243545363406, -0.03871217142313537, 0.026028285461773232, -0.007957913885858455, -0.23322138184590674, 0.10205908789492507, 0.0032289487071244455, -0.05830820791832194, -0.06464817989958314, -0.08986771755806375, 0.016662026017268256, 0.009134964466594704, 0.1218363188332083, 0.03735544851685806, 0.20759876886746143, -0.22568353768381313, -0.11912866830030774, 0.3990782574727768, -0.08189387035715144, -0.0879018964393564, 0.2209745982616413, -0.22967757014330567, -0.15550270991218162, 0.15235519118425322, 0.12852551033947526, 0.08172842769361124, -0.14335262206405763, 0.09742816379748104, -0.07656609621353266, 0.16813342977406048, 0.031537909086271215, 0.05147611099545895, 0.36528178826883073, 0.22016835690294279, 0.02127734956717709, 0.06442505961125035, -0.1779167357258635, -0.008927098276638767, -0.28233198483088395, -0.16295036587228134, -0.21832880309623917, 0.04858562804008948, -0.012760979833263086, -0.1083801419406039, 0.34899099909405157, 0.16375485001836063, 0.16580044831683086, -0.04744640395198608, 0.3436812130598033, 0.07843092199494471, 0.011248542773878066, 0.035206830384573194, 0.37062644024902003, 0.15719726273971724, 0.09205919583154155, -0.24511325827561228, 0.03805555382788908, -0.05385156285880906] |
708.2769 | Fields with several commuting derivations | For every natural number $m$, the existentially closed models of the theory
of fields with $m$ commuting derivations can be given a first-order geometric
characterization in several ways. In particular, the theory of these
differential fields has a model-companion. The axioms are that certain
differential varieties determined by certain ordinary varieties are nonempty.
There is no restriction on the characteristic of the underlying field.
| math.LO | for every natural number m the existentially closed models of the theory of fields with m commuting derivations can be given a firstorder geometric characterization in several ways in particular the theory of these differential fields has a modelcompanion the axioms are that certain differential varieties determined by certain ordinary varieties are nonempty there is no restriction on the characteristic of the underlying field | [['for', 'every', 'natural', 'number', 'm', 'the', 'existentially', 'closed', 'models', 'of', 'the', 'theory', 'of', 'fields', 'with', 'm', 'commuting', 'derivations', 'can', 'be', 'given', 'a', 'firstorder', 'geometric', 'characterization', 'in', 'several', 'ways', 'in', 'particular', 'the', 'theory', 'of', 'these', 'differential', 'fields', 'has', 'a', 'modelcompanion', 'the', 'axioms', 'are', 'that', 'certain', 'differential', 'varieties', 'determined', 'by', 'certain', 'ordinary', 'varieties', 'are', 'nonempty', 'there', 'is', 'no', 'restriction', 'on', 'the', 'characteristic', 'of', 'the', 'underlying', 'field']] | [-0.22052270111453254, 0.13386326565523632, -0.08337089854467195, 0.06962888406451384, -0.08770615825778805, -0.1122498355107382, -0.04894599051112891, 0.307566205970943, -0.3118674964644015, -0.27658450650051236, 0.0808737164370541, -0.24085968188592233, -0.15187663913093274, 0.2368647748771764, -0.12019553751451895, 0.0030514455575030297, 0.006259353714995086, 0.14567078934487654, -0.09350363531484618, -0.2967403713555541, 0.42414320805255556, -0.09727829490657314, 0.1925129344308516, -0.004443873038326274, 0.12336089841119247, -0.01838480385049479, -0.013043928396655247, 0.09752819782079314, -0.15077154900484402, 0.1300814370479202, 0.29544327434524575, 0.15883755770482821, 0.24418658830109052, -0.4133715570546883, -0.18644835014856653, 0.17771363610518165, 0.06459790251392405, 0.04986269037181046, -0.03091669276363973, -0.2428586221067235, 0.11268934690451715, -0.10194284922908992, -0.12056477431178791, -0.08589438026274365, 0.06272780098697694, 0.05300307857396547, -0.2379159465635894, -0.04089384834514931, 0.1346313836875197, 0.1648642667423701, -0.04169324086615234, -0.09990445408038795, -0.06832108939852333, 0.07885301530041033, -0.008570803507609526, 0.012793693822459318, 0.08470186754766473, -0.10672370973043144, -0.14884434585110284, 0.3501609336817637, -0.06729308146168478, -0.2495102515617873, 0.15031592264131177, -0.17738094460219145, -0.14698417803447228, 0.16691499089938588, 0.06609888258390129, 0.16108289954718202, -0.11971315962728113, 0.21711199232959189, -0.16775417696044315, 0.08116737043019384, 0.1082182727259351, 0.03357904113181576, 0.19836412608856335, 0.07123688268984552, 0.05687440897600027, 0.06365226820162206, 0.03909719815783319, -0.07907047244043497, -0.3931594419409521, -0.14818796863255557, -0.08896209513477515, 0.11017389992230164, -0.12569755726872245, -0.18168395545217209, 0.3501062765808456, 0.08300635044724913, 0.1668274711992126, 0.06068205578412744, 0.23921809369858238, 0.17717598693343461, 0.07592768876929767, 0.023224551674502436, 0.1483081465412397, 0.25991139170582755, -0.014936499508621637, -0.13417663664586144, 0.05175181991944555, 0.11451002401736332] |
708.277 | Examples of signature (2,2) manifolds with commuting curvature operators | We exhibit Walker manifolds of signature (2,2) with various commutativity
properties for the Ricci operator, the skew-symmetric curvature operator, and
the Jacobi operator. If the Walker metric is a Riemannian extension of an
underlying affine structure A, these properties are related to the Ricci tensor
of A.
| math.DG | we exhibit walker manifolds of signature 22 with various commutativity properties for the ricci operator the skewsymmetric curvature operator and the jacobi operator if the walker metric is a riemannian extension of an underlying affine structure a these properties are related to the ricci tensor of a | [['we', 'exhibit', 'walker', 'manifolds', 'of', 'signature', '22', 'with', 'various', 'commutativity', 'properties', 'for', 'the', 'ricci', 'operator', 'the', 'skewsymmetric', 'curvature', 'operator', 'and', 'the', 'jacobi', 'operator', 'if', 'the', 'walker', 'metric', 'is', 'a', 'riemannian', 'extension', 'of', 'an', 'underlying', 'affine', 'structure', 'a', 'these', 'properties', 'are', 'related', 'to', 'the', 'ricci', 'tensor', 'of', 'a']] | [-0.20677087057698915, 0.1118252242774767, -0.10256542921304068, 0.07286991275341666, -0.1825957484147016, -0.16799917419817537, -0.1298860432778267, 0.3705755354281753, -0.30535617454888975, -0.17153406319545306, 0.16255929752035028, -0.3169165885551496, -0.21724120424465931, 0.07649229683893476, -0.07296626889543172, 0.029740678800388852, 0.027200051087965357, 0.15065252349929922, -0.12159112613014084, -0.19887245172496013, 0.4821384271725695, 0.05355086627396497, 0.22339613902124952, 0.09364366436258276, 0.15636364537033628, -0.09452618542622696, -0.0012766837608069181, 0.024833849542080722, -0.11310611907987202, 0.07653919274502612, 0.17781058052911403, 0.0822971608549198, 0.18531418582325446, -0.3594101220171185, -0.1762359077507194, 0.18893969092676613, 0.06636001684385887, 0.004317209322718864, -0.03681095615722873, -0.33754280526587305, 0.0821467246662112, -0.10028252576259856, -0.18718209299704733, -0.06997497585859705, 0.015245398823568162, -0.024882562399069046, -0.2083855694360496, 0.07436243034502928, 0.1455306705642254, 0.08207584249767218, -0.11119152094792337, -0.0941265952238377, -0.06786950921610077, 0.06604983688312326, -0.0017861362318805558, 0.00880249557977027, 0.12085562501538624, -0.08506343745567063, -0.12855366763084175, 0.3197385920806134, -0.11616940578406161, -0.3404273768847293, 0.06274928144635038, -0.10898326442358976, -0.12110307143921865, 0.036388759154509356, 0.12536028598217255, 0.17792573880324972, -0.11486744758935566, 0.17417791810634725, -0.03565937581848591, 0.031864712648886316, 0.05628018129735868, 0.05701575658105789, 0.09610933005968307, 0.047479230791647384, 0.16354112784833985, 0.1151324235338797, 0.015816785405053102, -0.14161951204841125, -0.35164966941513914, -0.2358949710714056, -0.15851206522672734, 0.20452201786510488, -0.24723032022735966, -0.2255233739443282, 0.4797115866491135, 0.004754015046389813, 0.22730542786860283, 0.11862560167433099, 0.18473086846952744, 0.07650181082414186, 0.08097439804213478, 0.1439651792294326, 0.21982052780568917, 0.3315688568623142, 0.10313910901784262, -0.1841031667637698, -0.0217674520718766, 0.1831169530273752] |
708.2771 | Approximations to Euler's constant | We study a problem of finding good approximations to Euler's constant
$\gamma=\lim_{n\to\infty}S_n,$ where $S_n=\sum_{k=1}^n\frac{1}{n}-\log(n+1),$
by linear forms in logarithms and harmonic numbers. In 1995, C. Elsner showed
that slow convergence of the sequence $S_n$ can be significantly improved if
$S_n$ is replaced by linear combinations of $S_n$ with integer coefficients. In
this paper, considering more general linear transformations of the sequence
$S_n$ we establish new accelerating convergence formulae for $\gamma.$ Our
estimates sharpen and generalize recent Elsner's, Rivoal's and author's
results.
| math.NT | we study a problem of finding good approximations to eulers constant gammalim_ntoinftys_n where s_nsum_k1nfrac1nlogn1 by linear forms in logarithms and harmonic numbers in 1995 c elsner showed that slow convergence of the sequence s_n can be significantly improved if s_n is replaced by linear combinations of s_n with integer coefficients in this paper considering more general linear transformations of the sequence s_n we establish new accelerating convergence formulae for gamma our estimates sharpen and generalize recent elsners rivoals and authors results | [['we', 'study', 'a', 'problem', 'of', 'finding', 'good', 'approximations', 'to', 'eulers', 'constant', 'gammalim_ntoinftys_n', 'where', 's_nsum_k1nfrac1nlogn1', 'by', 'linear', 'forms', 'in', 'logarithms', 'and', 'harmonic', 'numbers', 'in', '1995', 'c', 'elsner', 'showed', 'that', 'slow', 'convergence', 'of', 'the', 'sequence', 's_n', 'can', 'be', 'significantly', 'improved', 'if', 's_n', 'is', 'replaced', 'by', 'linear', 'combinations', 'of', 's_n', 'with', 'integer', 'coefficients', 'in', 'this', 'paper', 'considering', 'more', 'general', 'linear', 'transformations', 'of', 'the', 'sequence', 's_n', 'we', 'establish', 'new', 'accelerating', 'convergence', 'formulae', 'for', 'gamma', 'our', 'estimates', 'sharpen', 'and', 'generalize', 'recent', 'elsners', 'rivoals', 'and', 'authors', 'results']] | [-0.11926753519483926, 0.09988832857367937, -0.09042633034579166, 0.03407849624220814, -0.06925654671965288, -0.12715534584645133, 0.05479720874248048, 0.33850569340896297, -0.2966708223178209, -0.25489604311039693, 0.08431175669395159, -0.2500053707074809, -0.1521986003045912, 0.23096394928341563, -0.11389700699500836, 0.05638696682978083, 0.07112514395863967, 0.0032499519285637064, -0.11383458109294342, -0.30351308116374853, 0.27428788349467825, 0.01760958404848715, 0.18330832971743755, -0.011785609215231878, 0.04134323821076519, 0.013116601165142152, -0.06278327949248351, -0.005916192377736042, -0.1753677487039414, 0.12433711289240701, 0.2616319001482969, 0.10642256846578864, 0.25691896722978586, -0.37211237155058263, -0.14155788726911142, 0.1455509965920325, 0.17108555129644545, 0.05285828749274279, -0.0638959003144092, -0.24187840818875023, 0.11370151313384633, -0.14467751307038035, -0.13353386142762838, -0.10223836765031923, 0.048225346928486575, 0.08605984785569856, -0.3464914027649861, 0.09722831786319903, 0.13398590061039506, 0.05731033441888821, -0.00766371964029484, -0.1850255880030114, 0.06854592075317421, 0.07128471830956541, 0.08873823245793774, 0.05719118861348501, 0.031278749232410225, -0.0823879361473169, -0.11008698510175402, 0.34826358543200925, -0.11313604646930833, -0.23041687147425755, 0.09629295999789006, -0.19614494232726948, -0.2018406102403563, 0.08274994684721936, 0.15085040334031566, 0.16829760798386165, -0.08518352705453124, 0.128389747330296, -0.09001549938088887, 0.12125520579903931, 0.168390170574285, -0.04331283899879857, 0.09828076763199521, 0.03918358421122486, 0.06842392367347107, 0.1590404903120059, 0.05741007055168028, -0.051428011679030085, -0.2981175914310016, -0.1378564131952665, -0.16993400925020505, 0.06282530177094332, -0.1432558037274496, -0.10589051285347381, 0.35361143854724897, 0.07453780267508579, 0.19826019703041664, 0.15505941481595592, 0.1970465191785101, 0.16279753929687446, -0.0026471639587241527, 0.0909544792957604, 0.14753569655616272, 0.19225070959973065, 0.01641344440728275, -0.1985778410483587, 0.03600300427725805, 0.16491860484510854] |
708.2772 | On the contact Ozsvath-Szabo invariant | Sarkar and Wang proved that the hat version of Heegaard Floer homology group
of a closed oriented 3-manifold is combinatorial starting from an arbitrary
nice Heegaard diagram and in fact every closed oriented 3-manifold admits such
a Heegaard diagram. Plamenevskaya showed that the contact Ozsvath-Szabo
invariant is combinatorial once we are given an open book decomposition
compatible with a contact structure. The idea is to combine the algorithm of
Sarkar and Wang with the recent description of the contact Ozsvath-Szabo
invariant due to Honda, Kazez and Matic. Here we simply observe that the hat
version of the Heegaard Floer homology group and the contact Ozsvath-Szabo
invariant in this group can be combinatorially calculated starting from a
contact surgery diagram. We give detailed examples pointing out to some
shortcuts in the computations.
| math.GT math.SG | sarkar and wang proved that the hat version of heegaard floer homology group of a closed oriented 3manifold is combinatorial starting from an arbitrary nice heegaard diagram and in fact every closed oriented 3manifold admits such a heegaard diagram plamenevskaya showed that the contact ozsvathszabo invariant is combinatorial once we are given an open book decomposition compatible with a contact structure the idea is to combine the algorithm of sarkar and wang with the recent description of the contact ozsvathszabo invariant due to honda kazez and matic here we simply observe that the hat version of the heegaard floer homology group and the contact ozsvathszabo invariant in this group can be combinatorially calculated starting from a contact surgery diagram we give detailed examples pointing out to some shortcuts in the computations | [['sarkar', 'and', 'wang', 'proved', 'that', 'the', 'hat', 'version', 'of', 'heegaard', 'floer', 'homology', 'group', 'of', 'a', 'closed', 'oriented', '3manifold', 'is', 'combinatorial', 'starting', 'from', 'an', 'arbitrary', 'nice', 'heegaard', 'diagram', 'and', 'in', 'fact', 'every', 'closed', 'oriented', '3manifold', 'admits', 'such', 'a', 'heegaard', 'diagram', 'plamenevskaya', 'showed', 'that', 'the', 'contact', 'ozsvathszabo', 'invariant', 'is', 'combinatorial', 'once', 'we', 'are', 'given', 'an', 'open', 'book', 'decomposition', 'compatible', 'with', 'a', 'contact', 'structure', 'the', 'idea', 'is', 'to', 'combine', 'the', 'algorithm', 'of', 'sarkar', 'and', 'wang', 'with', 'the', 'recent', 'description', 'of', 'the', 'contact', 'ozsvathszabo', 'invariant', 'due', 'to', 'honda', 'kazez', 'and', 'matic', 'here', 'we', 'simply', 'observe', 'that', 'the', 'hat', 'version', 'of', 'the', 'heegaard', 'floer', 'homology', 'group', 'and', 'the', 'contact', 'ozsvathszabo', 'invariant', 'in', 'this', 'group', 'can', 'be', 'combinatorially', 'calculated', 'starting', 'from', 'a', 'contact', 'surgery', 'diagram', 'we', 'give', 'detailed', 'examples', 'pointing', 'out', 'to', 'some', 'shortcuts', 'in', 'the', 'computations']] | [-0.21909665790180327, 0.07603147208094348, -0.20458942608737196, 0.096853400596581, -0.12396463146077767, -0.21698059124573496, 0.018893657982676424, 0.36648766955232803, -0.31489723814537623, -0.3186201129165542, 0.04110787735046918, -0.24292393581842192, -0.21468327447366795, 0.15987380985028415, -0.2219102627576421, -0.034535052798659975, 0.1372189718469238, 0.03791391297478144, -0.1111324241469065, -0.22832157817768745, 0.37250090381912604, -0.023329892295291862, 0.14665240275794428, 0.14216033278836493, 0.10296080590331064, 0.009024416228031157, -0.042928600694472324, 0.05249564701474435, -0.2645603198378026, 0.07394811192186165, 0.26180266189381823, -0.020085529427804793, 0.07315292754139438, -0.3265395102591897, -0.08318696391878948, 0.10710222880491091, 0.10399940737189, 0.03305585443518544, -0.02574263445905033, -0.3311556235581409, 0.10373400499731417, -0.16154705091799035, -0.14897708093591092, -0.06546036973026872, 0.029900362594266428, -0.011419755128858334, -0.1438750473961042, -0.07220009140641863, 0.07385374127908517, 0.13550911868659368, 0.026250456619780253, -0.09679925827067772, -0.05940400122288074, 0.15878198823166428, -0.009353992611026296, 0.1730199386543445, 0.1230800009349482, -0.0764768214404, -0.14310954562352815, 0.34568010145471295, -0.0760996253620691, -0.24683496031113936, 0.12624048311014496, -0.06601616606926759, -0.25495646639108543, 0.19208838028534678, -0.021503484150295266, 0.08990469030708871, -0.08150951064925797, 0.17041847059807122, -0.10785428172986926, 0.07491531860499237, 0.08887479932381566, -0.11846643213168469, 0.13506097451406923, 0.07972699411583083, 0.10884011928205385, 0.16164676666540584, 0.0051679839237898815, -0.08698598215825686, -0.2720415756419187, -0.24640543481960664, -0.14059564132129646, 0.2004486169481209, -0.1118193344626965, -0.21168344206254902, 0.3681719310666996, -0.004541827696340002, 0.15799973644884943, 0.1495725405793495, 0.2711185573081251, 0.013810840685930074, 0.03791721141008475, 0.10952639845661989, 0.11758094688789485, 0.21770556916603606, -0.008478925698472342, -0.1321406886479213, -0.02242528484824988, 0.2722042038652847] |
708.2773 | Strongly r-matrix induced tensors, Koszul cohomology, and
arbitrary-dimensional quadratic Poisson cohomology | We introduce the concept of strongly $r$-matrix induced ({\small SRMI})
Poisson structure, report on the relation of this property with the stabilizer
dimension of the considered quadratic Poisson tensor, and classify the Poisson
structures of the Dufour-Haraki classification (DHC) according to their
membership of the family of {\small SRMI} tensors. One of the main results of
our work is a generic cohomological procedure for {\small SRMI} Poisson
structures in arbitrary dimension. This approach allows decomposing Poisson
cohomology into, basically, a Koszul cohomology and a relative cohomology.
Moreover, we investigate this associated Koszul cohomology, highlight its tight
connections with Spectral Theory, and reduce the computation of this main
building block of Poisson cohomology to a problem of linear algebra. We apply
these upshots to two structures of the DHC and provide an exhaustive
description of their cohomology. We thus complete our list of data obtained in
previous works, see \cite{MP} and \cite{AMPN}, and gain fairly good insight
into the structure of Poisson cohomology.
| math.SG | we introduce the concept of strongly rmatrix induced small srmi poisson structure report on the relation of this property with the stabilizer dimension of the considered quadratic poisson tensor and classify the poisson structures of the dufourharaki classification dhc according to their membership of the family of small srmi tensors one of the main results of our work is a generic cohomological procedure for small srmi poisson structures in arbitrary dimension this approach allows decomposing poisson cohomology into basically a koszul cohomology and a relative cohomology moreover we investigate this associated koszul cohomology highlight its tight connections with spectral theory and reduce the computation of this main building block of poisson cohomology to a problem of linear algebra we apply these upshots to two structures of the dhc and provide an exhaustive description of their cohomology we thus complete our list of data obtained in previous works see citemp and citeampn and gain fairly good insight into the structure of poisson cohomology | [['we', 'introduce', 'the', 'concept', 'of', 'strongly', 'rmatrix', 'induced', 'small', 'srmi', 'poisson', 'structure', 'report', 'on', 'the', 'relation', 'of', 'this', 'property', 'with', 'the', 'stabilizer', 'dimension', 'of', 'the', 'considered', 'quadratic', 'poisson', 'tensor', 'and', 'classify', 'the', 'poisson', 'structures', 'of', 'the', 'dufourharaki', 'classification', 'dhc', 'according', 'to', 'their', 'membership', 'of', 'the', 'family', 'of', 'small', 'srmi', 'tensors', 'one', 'of', 'the', 'main', 'results', 'of', 'our', 'work', 'is', 'a', 'generic', 'cohomological', 'procedure', 'for', 'small', 'srmi', 'poisson', 'structures', 'in', 'arbitrary', 'dimension', 'this', 'approach', 'allows', 'decomposing', 'poisson', 'cohomology', 'into', 'basically', 'a', 'koszul', 'cohomology', 'and', 'a', 'relative', 'cohomology', 'moreover', 'we', 'investigate', 'this', 'associated', 'koszul', 'cohomology', 'highlight', 'its', 'tight', 'connections', 'with', 'spectral', 'theory', 'and', 'reduce', 'the', 'computation', 'of', 'this', 'main', 'building', 'block', 'of', 'poisson', 'cohomology', 'to', 'a', 'problem', 'of', 'linear', 'algebra', 'we', 'apply', 'these', 'upshots', 'to', 'two', 'structures', 'of', 'the', 'dhc', 'and', 'provide', 'an', 'exhaustive', 'description', 'of', 'their', 'cohomology', 'we', 'thus', 'complete', 'our', 'list', 'of', 'data', 'obtained', 'in', 'previous', 'works', 'see', 'citemp', 'and', 'citeampn', 'and', 'gain', 'fairly', 'good', 'insight', 'into', 'the', 'structure', 'of', 'poisson', 'cohomology']] | [-0.15779298550296517, 0.010440636450312013, -0.09477133884793147, 0.058543819597252876, -0.10764072679594391, -0.11103506596118677, 0.020861666311975568, 0.3305688278458547, -0.3502732778899372, -0.25925037898414305, 0.07067440428800183, -0.18009538915512166, -0.1957437112250318, 0.14776949661318212, -0.11460571146144502, 0.0008395952430873876, 0.053466463985387236, 0.07284876447101851, -0.08539522066275822, -0.2925729119466268, 0.4152415574382758, 0.0726995448989328, 0.2633666632362292, 0.02488023795008303, 0.10447324575579842, 0.009808730974327773, -0.10541928745224141, -0.012918475545711771, -0.1494570132555964, 0.19631756022499758, 0.2781245585414581, 0.051007515235687605, 0.1875278534978861, -0.38976884867297484, -0.11727433394762557, 0.09934029631549493, 0.10459082020533969, 0.0888218061052612, -0.011124141657637665, -0.2741164541454054, 0.1357883389639028, -0.18830150528083323, -0.14188236710433558, -0.09731129876963678, 0.006417721876641735, 0.01683958115463611, -0.21608888142000068, 0.02397883049270604, 0.12197664539185098, 0.0764177484670654, -0.11777201412878639, -0.1138617663178593, -0.03876783347805031, 0.0989739238502807, -0.030835617549018934, -0.015318315709009767, 0.10625381704303435, -0.08280161441070959, -0.14429162516389624, 0.3824210629227309, -0.01898715734714642, -0.21715333645697682, 0.15623787768709008, -0.145107485470362, -0.21010098531114635, 0.10099041246139677, 0.1163664946157951, 0.13087912077317015, -0.07053514721992542, 0.1391607720484899, -0.06401740287838038, 0.0731481445749523, 0.05844216251862235, 0.018097720367950387, 0.13413523151248227, 0.14480744757165667, 0.06420176158717368, 0.15480039222020422, -0.029597764947175163, -0.09000040467217332, -0.31886643394536807, -0.19306918375659735, -0.13209836560417898, 0.11301384686739765, -0.1379681247703047, -0.1955450307636056, 0.42153632356785237, 0.11658153070602566, 0.23547622037040128, 0.12346891075649183, 0.25630045677535235, 0.07712040547194192, 0.05841203862619295, 0.025312096765264868, 0.1371863724954892, 0.2396875667385757, 0.02308790449569642, -0.15983128514926648, -0.02125823332244181, 0.13796153917792253] |
708.2774 | The earliest phases of high-mass star formation: a 3 square degree
millimeter continuum mapping of Cygnus X | We have made an extensive 1.2mm continuum mosaicing study of the Cygnus X
molecular cloud complex using the MAMBO cameras at the IRAM 30 m telescope. We
then compared our mm maps with mid-IR images, and have made SiO(2-1) follow-up
observations of the best candidate progenitors of high-mass stars. Our complete
study of Cygnus X provides, for the first time, an unbiased census of massive
young stellar objects. We discover 129 massive dense cores, among which 42 are
probable precursors of high-mass stars. Our study qualifies 17 cores as good
candidates for hosting massive IR-quiet protostars, while up to 25 cores
potentially host high-luminosity IR protostars. We fail to discover the
high-mass analogs of pre-stellar dense cores in CygnusX, but find several
massive starless clumps that might be gravitationally bound. Since our sample
is derived from a single molecular complex and covers every embedded phase of
high-mass star formation, it gives the first statistical estimates of their
lifetime. In contrast to what is found for low-mass class 0 and class I phases,
the IR-quiet protostellar phase of high-mass stars may last as long as their
better-known high-luminosity IR phase. The statistical lifetimes of high-mass
protostars and pre-stellar cores (~ 3 x 10^4 yr and < 10^3 yr) in Cygnus X are
one and two order(s) of magnitude smaller, respectively, than what is found in
nearby, low-mass star-forming regions. We therefore propose that high-mass
pre-stellar and protostellar cores are in a highly dynamic state, as expected
in a molecular cloud where turbulent processes dominate.
| astro-ph | we have made an extensive 12mm continuum mosaicing study of the cygnus x molecular cloud complex using the mambo cameras at the iram 30 m telescope we then compared our mm maps with midir images and have made sio21 followup observations of the best candidate progenitors of highmass stars our complete study of cygnus x provides for the first time an unbiased census of massive young stellar objects we discover 129 massive dense cores among which 42 are probable precursors of highmass stars our study qualifies 17 cores as good candidates for hosting massive irquiet protostars while up to 25 cores potentially host highluminosity ir protostars we fail to discover the highmass analogs of prestellar dense cores in cygnusx but find several massive starless clumps that might be gravitationally bound since our sample is derived from a single molecular complex and covers every embedded phase of highmass star formation it gives the first statistical estimates of their lifetime in contrast to what is found for lowmass class 0 and class i phases the irquiet protostellar phase of highmass stars may last as long as their betterknown highluminosity ir phase the statistical lifetimes of highmass protostars and prestellar cores 3 x 104 yr and 103 yr in cygnus x are one and two orders of magnitude smaller respectively than what is found in nearby lowmass starforming regions we therefore propose that highmass prestellar and protostellar cores are in a highly dynamic state as expected in a molecular cloud where turbulent processes dominate | [['we', 'have', 'made', 'an', 'extensive', '12mm', 'continuum', 'mosaicing', 'study', 'of', 'the', 'cygnus', 'x', 'molecular', 'cloud', 'complex', 'using', 'the', 'mambo', 'cameras', 'at', 'the', 'iram', '30', 'm', 'telescope', 'we', 'then', 'compared', 'our', 'mm', 'maps', 'with', 'midir', 'images', 'and', 'have', 'made', 'sio21', 'followup', 'observations', 'of', 'the', 'best', 'candidate', 'progenitors', 'of', 'highmass', 'stars', 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708.2775 | Coupled layered superconductor as a system of 2D Coulomb particles of
two kinds | It is shown that the Josephson subsystem of the Lawrence-Doniach model of
layered superconductors in the London approximation can be presented as a
system with variable number of classical Coulomb particles. This allows us to
consider the vortex system of a coupled layered superconductor as the system of
these particles and 2D-vortices interacting with each other. The grand
partition function of the system was written and transformed into the form of
field one. Thermodynamical properties of the model obtained was studied. It is
found that there is no a phase transition in the system. Instead of this the
model demonstrates the crossover from a low temperature 3D behavior to high
temperature 2D one which can look as a phase transition for experimental
purposes.
| cond-mat.supr-con | it is shown that the josephson subsystem of the lawrencedoniach model of layered superconductors in the london approximation can be presented as a system with variable number of classical coulomb particles this allows us to consider the vortex system of a coupled layered superconductor as the system of these particles and 2dvortices interacting with each other the grand partition function of the system was written and transformed into the form of field one thermodynamical properties of the model obtained was studied it is found that there is no a phase transition in the system instead of this the model demonstrates the crossover from a low temperature 3d behavior to high temperature 2d one which can look as a phase transition for experimental purposes | [['it', 'is', 'shown', 'that', 'the', 'josephson', 'subsystem', 'of', 'the', 'lawrencedoniach', 'model', 'of', 'layered', 'superconductors', 'in', 'the', 'london', 'approximation', 'can', 'be', 'presented', 'as', 'a', 'system', 'with', 'variable', 'number', 'of', 'classical', 'coulomb', 'particles', 'this', 'allows', 'us', 'to', 'consider', 'the', 'vortex', 'system', 'of', 'a', 'coupled', 'layered', 'superconductor', 'as', 'the', 'system', 'of', 'these', 'particles', 'and', '2dvortices', 'interacting', 'with', 'each', 'other', 'the', 'grand', 'partition', 'function', 'of', 'the', 'system', 'was', 'written', 'and', 'transformed', 'into', 'the', 'form', 'of', 'field', 'one', 'thermodynamical', 'properties', 'of', 'the', 'model', 'obtained', 'was', 'studied', 'it', 'is', 'found', 'that', 'there', 'is', 'no', 'a', 'phase', 'transition', 'in', 'the', 'system', 'instead', 'of', 'this', 'the', 'model', 'demonstrates', 'the', 'crossover', 'from', 'a', 'low', 'temperature', '3d', 'behavior', 'to', 'high', 'temperature', '2d', 'one', 'which', 'can', 'look', 'as', 'a', 'phase', 'transition', 'for', 'experimental', 'purposes']] | [-0.15324284163299856, 0.1422031912055691, -0.10275705182375233, 0.03480311372931894, -0.005733989119972484, -0.1693419472841149, 0.041409054358840965, 0.30666191238513, -0.24514950596590024, -0.29666374422625075, 0.05289047672775895, -0.29981630139988485, -0.13574836067626345, 0.1686008443357423, 0.031282219501425984, 0.05423885443415798, -0.014977744675516227, 0.061023658124317766, -0.07051758605177652, -0.20812393510599667, 0.30229891759923616, 0.02032837501276651, 0.29265115113898377, 0.014956372515222088, 0.09325117408679645, -0.01356063951159919, 0.09970730172134325, 0.07420313751447152, -0.10196160184294387, 0.04998317368511782, 0.21422547622599075, 0.04900836528920126, 0.2166153763604091, -0.4135362830902373, -0.2539256824959131, 0.0671118321469756, 0.14040883057216397, 0.1236381845531573, -0.039399714674800634, -0.2599771561513304, 0.030187959166350545, -0.18216779110876874, -0.1395745290191386, -0.0566744854536335, -0.00971465410576889, 0.018553207199028157, -0.2655919102997687, 0.046861163054241754, 0.05050985518743696, 0.023820472239959437, -0.07798946221009828, -0.09308865566291373, -0.04030715281021644, 0.11617940131071039, 0.03589850607076202, 0.06567438191077749, 0.10641675083287304, -0.13950446739288994, -0.04831985078110802, 0.42584640386163214, -0.055742432452074143, -0.1493886075150527, 0.20210806191059166, -0.15143049862159447, -0.07537858188534002, 0.1341079700791628, 0.1300261653196372, 0.0900010820401863, -0.17721655468654926, 0.0713930088756167, -0.06966032549265588, 0.18899055567310483, -0.013557731860973796, 0.022745181641304773, 0.24477019017470664, 0.22186195577082576, 0.0038675219431275228, 0.21313170063429604, -0.07300539401008702, -0.10567962061461122, -0.269349673854523, -0.20542801208946793, -0.21449079318735442, 0.021860550207345456, -0.05968169253448322, -0.2108908830080315, 0.39591603452978147, 0.1692572012844259, 0.20148168546200126, -0.019614620471075483, 0.24514785278435858, 0.17055776644379786, 0.08523970627470216, 0.012404568508633824, 0.24787631707235439, 0.1207369727284846, 0.13838452999346476, -0.2307445676405685, 0.03490712693663406, 0.08182906055609222] |
708.2776 | Antimagic labelings of regular bipartite graphs: An application of the
Marriage Theorem | A labeling of a graph is a bijection from $E(G)$ to the set $\{1, 2,...,
|E(G)|\}$. A labeling is \textit{antimagic} if for any distinct vertices $u$
and $v$, the sum of the labels on edges incident to $u$ is different from the
sum of the labels on edges incident to $v$. We say a graph is antimagic if it
has an antimagic labeling. In 1990, Ringel conjectured that every connected
graph other than $K_2$ is antimagic. In this paper, we show that every regular
bipartite graph (with degree at least 2) is antimagic. Our technique relies
heavily on the Marriage Theorem.
| math.CO | a labeling of a graph is a bijection from eg to the set 1 2 eg a labeling is textitantimagic if for any distinct vertices u and v the sum of the labels on edges incident to u is different from the sum of the labels on edges incident to v we say a graph is antimagic if it has an antimagic labeling in 1990 ringel conjectured that every connected graph other than k_2 is antimagic in this paper we show that every regular bipartite graph with degree at least 2 is antimagic our technique relies heavily on the marriage theorem | [['a', 'labeling', 'of', 'a', 'graph', 'is', 'a', 'bijection', 'from', 'eg', 'to', 'the', 'set', '1', '2', 'eg', 'a', 'labeling', 'is', 'textitantimagic', 'if', 'for', 'any', 'distinct', 'vertices', 'u', 'and', 'v', 'the', 'sum', 'of', 'the', 'labels', 'on', 'edges', 'incident', 'to', 'u', 'is', 'different', 'from', 'the', 'sum', 'of', 'the', 'labels', 'on', 'edges', 'incident', 'to', 'v', 'we', 'say', 'a', 'graph', 'is', 'antimagic', 'if', 'it', 'has', 'an', 'antimagic', 'labeling', 'in', '1990', 'ringel', 'conjectured', 'that', 'every', 'connected', 'graph', 'other', 'than', 'k_2', 'is', 'antimagic', 'in', 'this', 'paper', 'we', 'show', 'that', 'every', 'regular', 'bipartite', 'graph', 'with', 'degree', 'at', 'least', '2', 'is', 'antimagic', 'our', 'technique', 'relies', 'heavily', 'on', 'the', 'marriage', 'theorem']] | [-0.1537543700588867, 0.10973527069800185, -0.06697581687243655, -0.020064084782497958, -0.13307204808108508, -0.1619623772194609, 0.06779729869333095, 0.44153245827619686, -0.2816920516639948, -0.30681731000047874, 0.03760083911241963, -0.38546922428533437, -0.14097971135750412, 0.06388732230290771, -0.14540420233272017, -0.08068698364309966, 0.16449349934235216, 0.15044129434973003, 0.06299977747257798, -0.25538964569219386, 0.31498238354921343, -0.1074432223290205, 0.18128053836524485, 0.10931951224338263, 0.12737854370381682, 0.08858060693833977, 0.015274588745087385, 0.0775293873436749, -0.12923230145665002, 0.09832336227409541, 0.23587846755981445, 0.17316152267623694, 0.2770695120468736, -0.35094421620189675, -0.14568558311089874, 0.22433335918001832, 0.08584309237863635, 0.03808322302997112, 0.03203299497370608, -0.2358438427420333, 0.16484201619401573, -0.0963351449406764, -0.015901646348647772, 0.05009343623183668, 0.1848669376783073, -0.015799045339226724, -0.3189987075421959, -0.037977744033560155, 0.10810502000967973, 0.059377777366898955, 0.056564804562367496, -0.1567152289999649, -0.09713391138240696, 0.0910590854426846, -0.06763386797159911, 0.17978024704381823, -0.0020958836504723875, -0.1450039825378917, -0.16900413102936, 0.37104852418880907, 0.00617696182031068, -0.17427672946359962, 0.16936242268770002, -0.13085528245195746, -0.16736892234534026, 0.10477514579426497, 0.04593632391653955, 0.18423564833588899, -0.07449498578411294, 0.11181784981337842, -0.18855459219776094, 0.16042233209125698, 0.14435991322621702, -0.03639554598368704, 0.12609259883873164, 0.15404636278748512, 0.2138099487219006, 0.14171406143403145, -0.024777175469789654, 0.11855257995426655, -0.27836207556072623, -0.08943579877726733, -0.31466715481481516, 0.09989426502492278, -0.128566859774146, -0.17618005611933768, 0.45341438852250576, 0.11932150959502906, 0.19198465455323457, 0.07286020355299115, 0.25674085527658463, 0.0695903877542878, 0.05639484694227576, 0.18925940712913872, 0.12030772723723203, 0.1485366402938962, -0.05394772359635681, -0.10473301256541162, 0.07870961181353778, 0.17033735793549568] |
708.2777 | A new metric between distributions of point processes | Most metrics between finite point measures currently used in the literature
have the flaw that they do not treat differing total masses in an adequate
manner for applications. This paper introduces a new metric $\bar{d}_1$ that
combines positional differences of points under a closest match with the
relative difference in total mass in a way that fixes this flaw. A
comprehensive collection of theoretical results about $\bar{d}_1$ and its
induced Wasserstein metric $\bar{d}_2$ for point process distributions are
given, including examples of useful $\bar{d}_1$-Lipschitz continuous functions,
$\bar{d}_2$ upper bounds for Poisson process approximation, and $\bar{d}_2$
upper and lower bounds between distributions of point processes of i.i.d.
points. Furthermore, we present a statistical test for multiple point pattern
data that demonstrates the potential of $\bar{d}_1$ in applications.
| math.PR math.ST stat.TH | most metrics between finite point measures currently used in the literature have the flaw that they do not treat differing total masses in an adequate manner for applications this paper introduces a new metric bard_1 that combines positional differences of points under a closest match with the relative difference in total mass in a way that fixes this flaw a comprehensive collection of theoretical results about bard_1 and its induced wasserstein metric bard_2 for point process distributions are given including examples of useful bard_1lipschitz continuous functions bard_2 upper bounds for poisson process approximation and bard_2 upper and lower bounds between distributions of point processes of iid points furthermore we present a statistical test for multiple point pattern data that demonstrates the potential of bard_1 in applications | [['most', 'metrics', 'between', 'finite', 'point', 'measures', 'currently', 'used', 'in', 'the', 'literature', 'have', 'the', 'flaw', 'that', 'they', 'do', 'not', 'treat', 'differing', 'total', 'masses', 'in', 'an', 'adequate', 'manner', 'for', 'applications', 'this', 'paper', 'introduces', 'a', 'new', 'metric', 'bard_1', 'that', 'combines', 'positional', 'differences', 'of', 'points', 'under', 'a', 'closest', 'match', 'with', 'the', 'relative', 'difference', 'in', 'total', 'mass', 'in', 'a', 'way', 'that', 'fixes', 'this', 'flaw', 'a', 'comprehensive', 'collection', 'of', 'theoretical', 'results', 'about', 'bard_1', 'and', 'its', 'induced', 'wasserstein', 'metric', 'bard_2', 'for', 'point', 'process', 'distributions', 'are', 'given', 'including', 'examples', 'of', 'useful', 'bard_1lipschitz', 'continuous', 'functions', 'bard_2', 'upper', 'bounds', 'for', 'poisson', 'process', 'approximation', 'and', 'bard_2', 'upper', 'and', 'lower', 'bounds', 'between', 'distributions', 'of', 'point', 'processes', 'of', 'iid', 'points', 'furthermore', 'we', 'present', 'a', 'statistical', 'test', 'for', 'multiple', 'point', 'pattern', 'data', 'that', 'demonstrates', 'the', 'potential', 'of', 'bard_1', 'in', 'applications']] | [-0.09764162309467793, 0.05631943086453248, -0.1195010461062193, 0.10318734372282051, -0.04742661347985268, -0.09051442854851484, 0.13279691417794676, 0.3806597234755755, -0.22789230946917086, -0.288403286524117, 0.058598075135611, -0.3085606274306774, -0.1498598261969164, 0.22770061992201954, -0.1051193487867713, 0.06527170405955986, 0.06369283993169665, 0.017491104185581207, -0.10373674811888486, -0.208558534049429, 0.34000311070680617, 0.04120524563640356, 0.28228575388528404, 0.07011105020483956, 0.10052674086391926, -0.016895335137844084, -0.050164577362360435, -0.007751758456230164, -0.13984391074744054, 0.11613840355724096, 0.24566764666885138, 0.14206727566197513, 0.25512258414179084, -0.36065231697261335, -0.19058121106401085, 0.16228145557641982, 0.11266471936181188, 0.06313094498962164, -0.08314137540012598, -0.2304944025054574, 0.10711045968532562, -0.1306310262354091, -0.12017025587707758, -0.05973022754490376, 0.03213268481940031, 0.045298298925161365, -0.27808117511868474, 0.061422725709155204, 0.07687035708670738, 0.07269168687937781, -0.04657008750643581, -0.16126923562423326, 0.016316735047847034, 0.15481000936403871, 0.03967446758551523, 0.038535896703600886, 0.09351435169950127, -0.1003876485186629, -0.14110362773761154, 0.37253268490731717, -0.0730962419398129, -0.22997174938581885, 0.1803761288188398, -0.12236440200731158, -0.16253523732349276, 0.10406060475111008, 0.19655402739997954, 0.1186345732882619, -0.20178996373713015, 0.08968103414261713, -0.029960836470127105, 0.13213220061827452, 0.06716181562095881, 0.05054225578904152, 0.18662999353185297, 0.11616421687602997, 0.11696829915046691, 0.11050276791118085, -0.07491952016949653, -0.13906308818235993, -0.35306450608046724, -0.12917849816009402, -0.1749936947375536, 0.00017888944793958216, -0.14047430952230935, -0.1840621487107128, 0.33443023888394235, 0.1785281760506332, 0.23559526355564595, 0.060902071572840215, 0.26079408058524134, 0.10219985171407461, 0.00787092314939946, 0.09059280806221068, 0.21108641146123408, 0.10327529358863831, 0.04134735223278403, -0.10398436996899545, 0.07644810316711664, 0.045517408672720194] |
708.2778 | A dense micro-cluster of Class 0 protostars in NGC 2264 D-MM1 | We present sensitive and high angular resolution (~1") 1.3 mm continuum
observations of the dusty core D-MM1 in the Spokes cluster in NGC 2264 using
the Submillimeter Array. A dense micro-cluster of seven Class 0 sources was
detected in a 20" x 20" region with masses between 0.4 to 1.2 solar masses and
deconvolved sizes of about 600 AU. We interpret the 1.3 mm emission as arising
from the envelopes of the Class 0 protostellar sources. The mean separation of
the 11 known sources (SMA Class 0 and previously known infrared sources) within
D-MM1 is considerably smaller than the characteristic spacing between sources
in the larger Spokes cluster and is consistent with hierarchical thermal
fragmentation of the dense molecular gas in this region.
| astro-ph | we present sensitive and high angular resolution 1 13 mm continuum observations of the dusty core dmm1 in the spokes cluster in ngc 2264 using the submillimeter array a dense microcluster of seven class 0 sources was detected in a 20 x 20 region with masses between 04 to 12 solar masses and deconvolved sizes of about 600 au we interpret the 13 mm emission as arising from the envelopes of the class 0 protostellar sources the mean separation of the 11 known sources sma class 0 and previously known infrared sources within dmm1 is considerably smaller than the characteristic spacing between sources in the larger spokes cluster and is consistent with hierarchical thermal fragmentation of the dense molecular gas in this region | [['we', 'present', 'sensitive', 'and', 'high', 'angular', 'resolution', '1', '13', 'mm', 'continuum', 'observations', 'of', 'the', 'dusty', 'core', 'dmm1', 'in', 'the', 'spokes', 'cluster', 'in', 'ngc', '2264', 'using', 'the', 'submillimeter', 'array', 'a', 'dense', 'microcluster', 'of', 'seven', 'class', '0', 'sources', 'was', 'detected', 'in', 'a', '20', 'x', '20', 'region', 'with', 'masses', 'between', '04', 'to', '12', 'solar', 'masses', 'and', 'deconvolved', 'sizes', 'of', 'about', '600', 'au', 'we', 'interpret', 'the', '13', 'mm', 'emission', 'as', 'arising', 'from', 'the', 'envelopes', 'of', 'the', 'class', '0', 'protostellar', 'sources', 'the', 'mean', 'separation', 'of', 'the', '11', 'known', 'sources', 'sma', 'class', '0', 'and', 'previously', 'known', 'infrared', 'sources', 'within', 'dmm1', 'is', 'considerably', 'smaller', 'than', 'the', 'characteristic', 'spacing', 'between', 'sources', 'in', 'the', 'larger', 'spokes', 'cluster', 'and', 'is', 'consistent', 'with', 'hierarchical', 'thermal', 'fragmentation', 'of', 'the', 'dense', 'molecular', 'gas', 'in', 'this', 'region']] | [-0.06636658202412284, 0.1407980279889235, 0.013075978287364825, 0.0513649977607006, -0.005436377291960164, -0.045113938237147884, 0.02353986486222995, 0.4281736083390299, -0.18049959718703854, -0.37496328080642566, 0.0894210494156111, -0.2781680035885916, 0.0046857198592552465, 0.13461304807935434, 0.016558363259681463, -0.029025815350334508, 0.03161941875880661, -0.08680011026276475, -0.064168825137529, -0.15116415731608868, 0.28604909020268227, 0.07084761129130325, 0.1380952058267618, -0.011950849356276006, 0.07584358380399336, -0.1460836060505845, -0.0646874610284605, -0.019474602212036445, -0.13759483118764748, 0.07126689719205553, 0.21766691096511878, 0.0739591049265178, 0.21320535440878483, -0.3116445073950266, -0.19952550445671755, 0.03606821735743587, 0.19537006359362652, 0.016143124382211712, 0.02435474686155265, -0.2742345994761722, 0.12643856077632012, -0.15784847514688477, -0.2104121834301382, 0.13639001725510932, 0.0696585520886439, 0.026622884702861064, -0.22225905398738163, 0.15452524714079524, -0.010587528310446761, 0.09454847538212607, -0.11079606048624255, -0.21547095984420625, -0.022072291996499353, 0.08880089902249742, -0.05602512993919086, 0.11486701528764953, 0.18517233906236807, -0.1320715762871079, -0.03845034262419424, 0.3619614457288249, -0.05511299812502886, -0.049331177441664965, 0.2555587425874161, -0.25010394514345924, -0.19219501040999062, 0.2505271282462665, 0.11751472616706751, 0.15032519821524004, -0.13917323075665916, -0.011128944785465018, -0.0397933877096319, 0.29296633915028975, 0.10554497949355705, 0.08295745319448226, 0.27817749806241066, 0.1418309744537908, 0.026365372055972166, 0.17479673235038343, -0.31698802796246345, -0.07800854809489871, -0.26205601988067806, -0.08706310347553865, -0.1414905962272555, 0.12464424942558523, -0.1602858380863851, -0.07250697706962651, 0.29133539860067537, 0.1000571330443548, 0.21124075206904863, 0.06576779579901529, 0.250949182863201, 0.014282522729813498, 0.14143284035977438, 0.12529075111470317, 0.2775504396966666, 0.1882268184187922, 0.11367165131185565, -0.1586677230863778, -0.0290539891801559, -0.04473105996432483] |
708.2779 | A Survey on the Classical Limit of Quantum Dynamical Entropies | We analyze the behavior of quantum dynamical entropies production from
sequences of quantum approximants approaching their (chaotic) classical limit.
The model of the quantized hyperbolic automorphisms of the 2-torus is examined
in detail and a semi-classical analysis is performed on it using coherent
states, fulfilling an appropriate dynamical localization property.
Correspondence between quantum dynamical entropies and the Kolmogorov-Sinai
invariant is found only over time scales that are logarithmic in the
quantization parameter.
| math-ph math.DS math.MP quant-ph | we analyze the behavior of quantum dynamical entropies production from sequences of quantum approximants approaching their chaotic classical limit the model of the quantized hyperbolic automorphisms of the 2torus is examined in detail and a semiclassical analysis is performed on it using coherent states fulfilling an appropriate dynamical localization property correspondence between quantum dynamical entropies and the kolmogorovsinai invariant is found only over time scales that are logarithmic in the quantization parameter | [['we', 'analyze', 'the', 'behavior', 'of', 'quantum', 'dynamical', 'entropies', 'production', 'from', 'sequences', 'of', 'quantum', 'approximants', 'approaching', 'their', 'chaotic', 'classical', 'limit', 'the', 'model', 'of', 'the', 'quantized', 'hyperbolic', 'automorphisms', 'of', 'the', '2torus', 'is', 'examined', 'in', 'detail', 'and', 'a', 'semiclassical', 'analysis', 'is', 'performed', 'on', 'it', 'using', 'coherent', 'states', 'fulfilling', 'an', 'appropriate', 'dynamical', 'localization', 'property', 'correspondence', 'between', 'quantum', 'dynamical', 'entropies', 'and', 'the', 'kolmogorovsinai', 'invariant', 'is', 'found', 'only', 'over', 'time', 'scales', 'that', 'are', 'logarithmic', 'in', 'the', 'quantization', 'parameter']] | [-0.19382442771651162, 0.18945035004213018, -0.1667038386221975, 0.11944792447967403, 0.04042188895659314, -0.14438305701252022, 0.0274318907100274, 0.29787876141361064, -0.2907507942161626, -0.19860989367589355, 0.06999090238079791, -0.31078053410682416, -0.1583462539145128, 0.21468243514795582, -0.060515517226627305, 0.1395112769290184, 0.03303998122121104, 0.09901672647619206, -0.11536890601726352, -0.21601126621115124, 0.3179600114720718, 0.04340574741783914, 0.27880802991179127, 0.02145795062905462, 0.10487127551136331, -0.0015574791501017495, 0.004914671736413665, 0.001424652472552326, -0.16481909306912712, 0.06145249583561155, 0.22356832297454174, 0.0530349199867083, 0.19912374694508295, -0.35321764747560436, -0.21499346290430468, 0.09273558410172376, 0.14009106474218747, 0.0856601918478393, -0.011881135192298744, -0.30957694464207935, 0.08174529206007719, -0.1635026792387685, -0.12165493879001588, -0.11340415747124805, 0.02992661554728531, -0.0231493274817088, -0.18901878982109743, 0.124736187268152, 0.08664060796703173, 0.10005347302972546, -0.05733648487754787, 0.018599713014231786, -0.042086844471567825, 0.15188726674144468, 0.02983989438669394, -0.027555697078544956, 0.14437101272374597, -0.107308291299786, -0.1360919172180325, 0.35080058306145173, -0.034725564231242366, -0.21742925580797923, 0.17417262515906864, -0.17019099370938623, -0.1398593084110568, 0.08465682327126463, 0.1100690643587667, 0.15120052811430973, -0.10639591181340317, 0.1655839452788415, -0.008582647217230665, 0.16784965188384782, 0.07268130776032598, 0.11289458329297809, 0.19576811317044, 0.10793657317602386, 0.025983059080317616, 0.1673883121046755, -0.04181629076224959, -0.269531890633516, -0.3204915780548213, -0.14139367152367616, -0.19596457115969518, 0.1314469214234527, -0.1253969950804377, -0.17551595596079198, 0.3897731376734252, 0.11917806405350954, 0.20508791245002714, 0.07783669614905699, 0.24874784419726995, 0.16755973403228885, 0.013845377241119018, 0.03309070527838129, 0.23716612753923982, 0.1755296401420815, 0.022904911115700897, -0.2610166824338699, -0.008349651153871996, 0.1531600173459285] |
708.278 | Ion dynamics and coherent structure formation following laser pulse
self-channeling | The propagation of a superintense laser pulse in an underdense, inhomogeneous
plasma has been studied numerically by two-dimensional particle-in-cell
simulations on a time scale extending up to several picoseconds. The effects of
the ion dynamics following the charge-displacement self-channeling of the laser
pulse have been addressed. Radial ion acceleration leads to the ``breaking'' of
the plasma channel walls, causing an inversion of the radial space-charge field
and the filamentation of the laser pulse. At later times a number of
long-lived, quasi-periodic field structures are observed and their dynamics is
characterized with high resolution. Inside the plasma channel, a pattern of
electric and magnetic fields resembling both soliton- and vortex-like
structures is observed.
| physics.plasm-ph | the propagation of a superintense laser pulse in an underdense inhomogeneous plasma has been studied numerically by twodimensional particleincell simulations on a time scale extending up to several picoseconds the effects of the ion dynamics following the chargedisplacement selfchanneling of the laser pulse have been addressed radial ion acceleration leads to the breaking of the plasma channel walls causing an inversion of the radial spacecharge field and the filamentation of the laser pulse at later times a number of longlived quasiperiodic field structures are observed and their dynamics is characterized with high resolution inside the plasma channel a pattern of electric and magnetic fields resembling both soliton and vortexlike structures is observed | [['the', 'propagation', 'of', 'a', 'superintense', 'laser', 'pulse', 'in', 'an', 'underdense', 'inhomogeneous', 'plasma', 'has', 'been', 'studied', 'numerically', 'by', 'twodimensional', 'particleincell', 'simulations', 'on', 'a', 'time', 'scale', 'extending', 'up', 'to', 'several', 'picoseconds', 'the', 'effects', 'of', 'the', 'ion', 'dynamics', 'following', 'the', 'chargedisplacement', 'selfchanneling', 'of', 'the', 'laser', 'pulse', 'have', 'been', 'addressed', 'radial', 'ion', 'acceleration', 'leads', 'to', 'the', 'breaking', 'of', 'the', 'plasma', 'channel', 'walls', 'causing', 'an', 'inversion', 'of', 'the', 'radial', 'spacecharge', 'field', 'and', 'the', 'filamentation', 'of', 'the', 'laser', 'pulse', 'at', 'later', 'times', 'a', 'number', 'of', 'longlived', 'quasiperiodic', 'field', 'structures', 'are', 'observed', 'and', 'their', 'dynamics', 'is', 'characterized', 'with', 'high', 'resolution', 'inside', 'the', 'plasma', 'channel', 'a', 'pattern', 'of', 'electric', 'and', 'magnetic', 'fields', 'resembling', 'both', 'soliton', 'and', 'vortexlike', 'structures', 'is', 'observed']] | [-0.1774981138317401, 0.25034146183112693, -0.0755777438632674, 0.03942019096995192, 0.0029239392931665388, -0.07993378285329102, -0.08462473998991521, 0.4705182710276531, -0.2463717322360288, -0.2995299134101417, 0.06752762174850481, -0.19622125393325077, 0.0026122774291145907, 0.2009828719352414, 0.04958278389630823, 0.05779076804121671, 0.0016581626873262026, -0.024165664975707594, -0.0037595025423142287, -0.14729043207894843, 0.2532833706637895, 0.12725848321140082, 0.2798307665229381, 0.04430906446902333, 0.11077224734650405, -0.0665875794533808, 0.022040568799753715, 0.007104966672019915, -0.12471835621381451, 0.028457939759031072, 0.14873296267831246, 0.01248975516179459, 0.2693162919651415, -0.5281796521498813, -0.3052784296734309, -0.005006092902574991, 0.18666493340588367, 0.1706179779878742, -0.11778978878099404, -0.2978627805237298, 0.03790563447317025, -0.11905550207892382, -0.1670019087205465, 0.019622992770326836, 0.037094160274661205, 0.1068899392880298, -0.2596739268031072, 0.06930988941022807, 0.04936892806178982, 0.06963515016543972, -0.056040137544744184, -0.008032554089351817, -0.038848752243998086, 0.018679841967962414, 0.08939969367641318, 0.06653100724944526, 0.18482156893288768, -0.15691798313747388, -0.10076288515617987, 0.3863558621892521, -0.060492017451119984, -0.09313357962916295, 0.17331569089852106, -0.2212924771144596, -0.010410050924464658, 0.2558876697544579, 0.1631127989532107, 0.11477092464311837, -0.09545857619561322, 0.04730924821237463, -0.016308747710207024, 0.16223203806923167, 0.18796227746097757, 0.03885250460348084, 0.2311546240916459, 0.1986895574451852, 0.011164974247164151, 0.13446290055232182, -0.16476892645319774, -0.059208366038227406, -0.2309226119001438, -0.0679139162472508, -0.13578155805432313, 0.028498719538654294, -0.03666115906781744, -0.15877073479665293, 0.4739887535169318, 0.10886388483062924, 0.12878774073990146, -0.09026077074661583, 0.2822875767350532, 0.14887837130106515, 0.03933410928584635, 0.06033485116403516, 0.2379694341955631, 0.22652807494684182, 0.15395539275345368, -0.30290499033389595, -0.004476111466148952, -0.006195664380651874] |
708.2781 | Comment on "Entropy production and the arrow of time" | J.M.R. Parrondo at al. in arXiv:0904.1573 continue numerous efforts to unify
the concepts of the arrow of time and entropy production with the concept of
time invariance in physics. This is a wrong way.
| physics.gen-ph | jmr parrondo at al in arxiv09041573 continue numerous efforts to unify the concepts of the arrow of time and entropy production with the concept of time invariance in physics this is a wrong way | [['jmr', 'parrondo', 'at', 'al', 'in', 'arxiv09041573', 'continue', 'numerous', 'efforts', 'to', 'unify', 'the', 'concepts', 'of', 'the', 'arrow', 'of', 'time', 'and', 'entropy', 'production', 'with', 'the', 'concept', 'of', 'time', 'invariance', 'in', 'physics', 'this', 'is', 'a', 'wrong', 'way']] | [-0.07848851125891088, 0.1709182257327484, -0.1656541821284918, 0.03889034467283636, -0.08476463392435107, -0.06689802602340933, 0.07145722978748381, 0.2899397073779255, -0.3111416510946583, -0.3426664316211827, 0.0436900491695269, -0.26847562775947154, -0.09667283319868147, 0.11473156232386827, -0.10490771886543371, 0.06757178023690358, -0.013850417555659078, 0.02856393535330426, -0.04593930728151463, -0.26334912586025894, 0.26166344911325723, 0.13022326968348352, 0.2690672460012138, 0.08805905401823111, 0.049297543737338856, -0.042782602104125544, -0.08404043243172055, 0.029351287696044892, -0.14816095479181968, 0.11852219657157548, 0.2667074027704075, 0.17305238998960704, 0.33692267490550876, -0.4441455861669965, -0.19805885333335027, 0.10550687019713223, 0.06822240818291903, 0.14678218925837427, -0.04393748732400127, -0.2706337083582184, 0.025917291844962165, -0.1635342874797061, -0.16088777575350832, -0.01730032675914117, 0.10498269012896344, -0.05351070666802116, -0.1827182736742543, 0.08504220281611197, 0.1171112789597828, 0.02769349301888724, 0.015147787817113567, -0.023739492113236338, 0.025039843618287705, 0.09935603178746533, 0.08250190354738152, 0.04555271512072068, 0.08089416319853626, -0.12493582989554852, -0.2444601036113454, 0.37339021801017225, -0.04068012043717317, -0.13575702476134666, 0.23133820248767734, -0.16856352359172888, -0.22687682558898814, 0.06529646809212863, 0.15195468394085765, 0.1044159708544612, -0.1441144069103757, 0.13836969787189446, 0.009495709906332195, 0.07401601998572005, 0.05936467114952393, 0.07758757972624153, 0.211135730962269, 0.14718906249618158, 0.037346336466725916, 0.08748626022133976, 0.017004479392198846, -0.13176045426553173, -0.34427769485046156, -0.2497338764660526, -0.13290343986591324, 0.05075675458647311, -0.0013753761154475797, -0.08539441236644052, 0.3963260483578779, 0.21866668201982975, 0.21870725805638358, 0.06965936761116609, 0.26862033549696207, 0.05439716737600975, 0.04782405045989435, 0.026661908326786943, 0.23682635673321784, 0.12663165637059137, 0.22038370731752366, -0.21795641801145393, 0.09088155890640337, 0.08549196785315871] |
708.2782 | Anisotropic quasiparticle scattering rates in slightly underdoped to
optimally doped high-temperature \LSCO\ superconductors | An angle-resolved photoemission study of the scattering rate in the
superconducting phase of the high-temperature superconductor \LSCO\ with
$x=0.145$ and $x=0.17$, as a function of binding energy and momentum, is
presented. We observe that the scattering rate scales linearly with binding
energy up to the high-energy scale $E_1\sim0.4$ eV. The scattering rate is
found to be strongly anisotropic, with a minimum along the (0,0)-($\pi,\pi$)
direction. A possible connection to a quantum-critical point is discussed.
| cond-mat.supr-con | an angleresolved photoemission study of the scattering rate in the superconducting phase of the hightemperature superconductor lsco with x0145 and x017 as a function of binding energy and momentum is presented we observe that the scattering rate scales linearly with binding energy up to the highenergy scale e_1sim04 ev the scattering rate is found to be strongly anisotropic with a minimum along the 00pipi direction a possible connection to a quantumcritical point is discussed | [['an', 'angleresolved', 'photoemission', 'study', 'of', 'the', 'scattering', 'rate', 'in', 'the', 'superconducting', 'phase', 'of', 'the', 'hightemperature', 'superconductor', 'lsco', 'with', 'x0145', 'and', 'x017', 'as', 'a', 'function', 'of', 'binding', 'energy', 'and', 'momentum', 'is', 'presented', 'we', 'observe', 'that', 'the', 'scattering', 'rate', 'scales', 'linearly', 'with', 'binding', 'energy', 'up', 'to', 'the', 'highenergy', 'scale', 'e_1sim04', 'ev', 'the', 'scattering', 'rate', 'is', 'found', 'to', 'be', 'strongly', 'anisotropic', 'with', 'a', 'minimum', 'along', 'the', '00pipi', 'direction', 'a', 'possible', 'connection', 'to', 'a', 'quantumcritical', 'point', 'is', 'discussed']] | [-0.17574342066008183, 0.23815754403464476, -0.07363337630845813, 0.05086144608180297, -0.0435136820952822, -0.10033695868979622, 0.08601729111655408, 0.39556119690274094, -0.31195841760685045, -0.2594204255082231, -0.008187215550505143, -0.3702954221387497, -0.05944275100935354, 0.1835194815454694, 0.08360194960712558, 0.03924239452721344, -0.02447352253107561, 0.013229937926452193, -0.11305312910392079, -0.19524020973282555, 0.32178794869428706, 0.15136170021853307, 0.3080875203789522, 0.15908507843657085, 0.05196924473340106, 0.01259683899115771, 0.08901005768631068, -0.005067044080028104, -0.17222427031295715, 0.06479501081695263, 0.2879932425114223, -0.06724284206413561, 0.16198009581098127, -0.35621953737508094, -0.2173446592512644, 0.022187233592073124, 0.12787320028292015, 0.10271559982922757, -0.08115438238665876, -0.2057136204611096, 0.046314921540518604, -0.11593223663253917, -0.17184921476938245, -0.03674103943760403, -0.002190227875770587, 0.030174085724866018, -0.23626003248824012, 0.13164080522255972, -0.02938913846608355, 0.002159531085958911, -0.09329784243729794, -0.07677219392887007, -0.06103274285689824, -0.011000667385006737, 0.13001124335439979, 0.14089823890956016, 0.11489287861493519, -0.11878806552623347, -0.10134238113338749, 0.35384724012369084, -0.043076162140803516, -0.07801958905636436, 0.14813113159551802, -0.19186668595971745, -0.03645217896620226, 0.19180561744401026, 0.10328420617022654, 0.11965008098114696, -0.15911106455476126, 0.07983970657126822, -0.022339166154981487, 0.2377928550207192, 0.047253207368258804, 0.07325376772658071, 0.20656217057775292, 0.24080743396835816, 0.06543653454476346, 0.11167612146527972, -0.17894658423028886, -0.03308281852271951, -0.26443541205177706, -0.16550920876519135, -0.20791334198373887, 0.08664797480256918, -0.05861103010789116, -0.1673550512124267, 0.3651165412609569, 0.11612289045135388, 0.28190641462182003, 0.003292291386363407, 0.22977314373323074, 0.16778813300414994, 0.06367542147765765, 0.07162994200674196, 0.2645950076273746, 0.14064736737054773, 0.10468816629792047, -0.33191291306866333, 0.027907413323797908, 0.010108206521383382] |
708.2783 | On Energy of the Friedman Universes in Conformally Flat Coordinates | Recently many authors have calculated the energy of the Friedman universes by
using double index energy-momentum complexes in Cartesian comoving coordinates
$(t,x,y,z)$ and concluded that the flat and closed Friedman universes are
energy-free. We show in this paper by using Einstein canonical energy-momentum
complex and by doing calculations in conformally flat coordinates that such
conclusion is incorrect. The results obtained in this paper are compatible with
the results of the our previous paper \cite{Gar07} where we have used
coordinate-independent averaged relative energy-momentum tensors to analyze
Friedman universes.
| gr-qc | recently many authors have calculated the energy of the friedman universes by using double index energymomentum complexes in cartesian comoving coordinates txyz and concluded that the flat and closed friedman universes are energyfree we show in this paper by using einstein canonical energymomentum complex and by doing calculations in conformally flat coordinates that such conclusion is incorrect the results obtained in this paper are compatible with the results of the our previous paper citegar07 where we have used coordinateindependent averaged relative energymomentum tensors to analyze friedman universes | [['recently', 'many', 'authors', 'have', 'calculated', 'the', 'energy', 'of', 'the', 'friedman', 'universes', 'by', 'using', 'double', 'index', 'energymomentum', 'complexes', 'in', 'cartesian', 'comoving', 'coordinates', 'txyz', 'and', 'concluded', 'that', 'the', 'flat', 'and', 'closed', 'friedman', 'universes', 'are', 'energyfree', 'we', 'show', 'in', 'this', 'paper', 'by', 'using', 'einstein', 'canonical', 'energymomentum', 'complex', 'and', 'by', 'doing', 'calculations', 'in', 'conformally', 'flat', 'coordinates', 'that', 'such', 'conclusion', 'is', 'incorrect', 'the', 'results', 'obtained', 'in', 'this', 'paper', 'are', 'compatible', 'with', 'the', 'results', 'of', 'the', 'our', 'previous', 'paper', 'citegar07', 'where', 'we', 'have', 'used', 'coordinateindependent', 'averaged', 'relative', 'energymomentum', 'tensors', 'to', 'analyze', 'friedman', 'universes']] | [-0.11395917663775275, 0.09203519459731657, -0.08413546723587548, 0.06734115651069099, -0.06648540587219245, -0.06076740493778797, -0.0719012762324008, 0.3791130084763555, -0.17133191311184098, -0.2678269096020171, 0.012035824550206171, -0.24561079440309722, -0.13637709227007103, 0.1515560810043312, -0.0859212394529844, 0.005653618095333085, 0.03435152156607193, 0.015524447292966, -0.07439200856777675, -0.30535480594810316, 0.4327489450793056, 0.09184423712465693, 0.2531886377317064, 0.0033274149960454773, 0.1252630874459796, -0.03654108768164673, -0.09736912415417678, 0.1356259751078837, -0.18702372310645468, 0.10197210121721796, 0.2375407690894516, 0.11200245555271121, 0.18607530876555864, -0.422388088725069, -0.19293189531959154, 0.08721945099532605, 0.1370272811392651, 0.10311729939764037, -0.01884275500607841, -0.2818695967304794, 0.09292343261305873, -0.18305499990854193, -0.14891804334543207, -0.10123738048269468, 0.040271694059757626, -0.009460646724876235, -0.1564564063487684, 0.11635938525638159, 0.0302879887226428, -0.011161185919584515, -0.12813801479745, -0.11057976236676469, -0.02783210923730889, 0.03328900554162614, 0.07747372481492622, 0.03870175163097241, 0.07434296566335594, -0.03013548755689579, -0.1126018800170106, 0.38448944670312546, -0.11692314272856011, -0.2616401988081634, 0.10127202162299963, -0.12847950534675928, -0.13996123388847884, 0.055833468945039544, 0.05519017304896432, 0.14624481125570396, -0.16131327927989117, 0.17588557445183944, -0.0690458634224556, 0.06596987151869518, 0.18350592802333482, -0.024017233105705065, 0.19176652474767145, 0.01822758071562823, -0.04421292930800358, 0.09336815574206411, 0.004499009821344825, -0.11711640350027558, -0.33994507237392313, -0.2096136030028848, -0.1838375078733353, 0.07485783097936827, -0.1155904327514102, -0.15629963064018418, 0.34794294625685057, 0.12345143158865325, 0.14363605418406866, 0.05326435667846133, 0.261657558359644, 0.06899661203325891, 0.020642710351111256, 0.15773222597096773, 0.3057160800048972, 0.15037859277799726, 0.12209855248768102, -0.13774254152975868, -0.029420784176053368, 0.08158270437270403] |
708.2784 | On a linear code from a configuration of affine lines | We will show how to obtain a linear code from a configuration of affine lines
in general position and a suitable set of rational points. We will also explain
a new decoding algorithm based on the configuration, which seems to be quite
effective.
| cs.IT cs.DM math.AG math.IT | we will show how to obtain a linear code from a configuration of affine lines in general position and a suitable set of rational points we will also explain a new decoding algorithm based on the configuration which seems to be quite effective | [['we', 'will', 'show', 'how', 'to', 'obtain', 'a', 'linear', 'code', 'from', 'a', 'configuration', 'of', 'affine', 'lines', 'in', 'general', 'position', 'and', 'a', 'suitable', 'set', 'of', 'rational', 'points', 'we', 'will', 'also', 'explain', 'a', 'new', 'decoding', 'algorithm', 'based', 'on', 'the', 'configuration', 'which', 'seems', 'to', 'be', 'quite', 'effective']] | [-0.11531650400612244, 0.040703176975596785, -0.1550262556086446, 0.08955822837387406, -0.11365195528365844, -0.1801449990029945, 0.10428347063878941, 0.39500043237971705, -0.276702735854616, -0.2410728030859731, 0.10123051222966074, -0.17548027517663878, -0.19966869992962064, 0.2322984122086403, -0.11536858845935312, 0.00675439176171325, 0.06775954201124436, 0.06823436642975308, -0.12530601670055888, -0.2574034048904946, 0.3269502423530401, 0.08778359225496303, 0.22785825178373692, 0.0449339467815535, 0.0999568187073956, -0.03141170418496395, 0.008030676618651596, 0.07535365401485632, -0.11427855553365378, 0.14836324196915293, 0.27430772967636585, 0.16673719834233092, 0.2020752718888743, -0.3824063196431759, -0.14025848410850347, 0.09122804823049972, 0.15507751356723698, 0.18310069314171667, -0.027705395726898556, -0.2281209992807965, 0.09850334484390048, -0.1314473717884962, -0.16399215234356912, -0.0860565604945255, 0.009358800460346216, 0.047408249142558076, -0.31400571261034455, -0.08864029590988012, 0.027040483018513337, 0.03611746040541072, -0.04240857307301011, -0.09184811017096996, 0.014341046281028972, 0.06655719758249647, -0.04280926451780075, 0.06900015519390446, 0.0822879894268374, -0.04622481960456732, -0.10893028179660093, 0.4011808664992798, -0.057774395811869654, -0.24527609894095465, 0.17025134115219984, -0.10958149710800065, -0.15497706211605217, 0.11936506202314483, 0.2245132500349089, 0.13172703929418741, -0.1297867355954855, 0.07717661286547217, -0.06299308410217595, 0.18458002579918262, 0.02429076054588307, -0.01005743155770307, 0.2203541149406932, 0.09745249119695536, 0.11780787703342908, 0.15182766762729952, -0.09693406379868298, -0.07312602954808363, -0.33717943658662397, -0.1559686518252589, -0.12955716773217849, 0.08110020130461212, -0.05653477433038778, -0.18292129616967814, 0.41699716136899107, 0.16867237044281738, 0.24196315214557704, 0.058545900717226054, 0.24839745008191744, 0.08700542138695858, 0.05852227237855279, 0.09337623685403446, 0.2112980411647884, 0.06904800765779476, 0.04533158215629154, -0.15807770878661337, 0.025944463020667087, 0.09464107357442032] |
708.2785 | The uniform order convergence structure on ML(X) | The aim of this paper is to set up appropriate uniform convergence spaces in
which to reformulate and enrich the Order Completion Method for nonlinear PDEs.
In this regard, we consider an appropriate space ML(X) of normal lower
semi-continuous functions. The space ML(X)= appears in the ring theory of C(X),
and its various extensions, as well as in the theory of nonlinear PDEs. We
define a uniform convergence structure on ML(X) such that the induced
convergence structure is the order convergence structure. The uniform
convergence space completion of ML(X) is constructed as the set of normal lower
semi-continuous functions. It is then shown how these ideas may be applied to
solve nonlinear PDEs. In particular, we construct generalized solutions to the
Navier-Stokes equations in three spatial dimensions, subject to an initial
condition.
| math.GM math.AP math.GN | the aim of this paper is to set up appropriate uniform convergence spaces in which to reformulate and enrich the order completion method for nonlinear pdes in this regard we consider an appropriate space mlx of normal lower semicontinuous functions the space mlx appears in the ring theory of cx and its various extensions as well as in the theory of nonlinear pdes we define a uniform convergence structure on mlx such that the induced convergence structure is the order convergence structure the uniform convergence space completion of mlx is constructed as the set of normal lower semicontinuous functions it is then shown how these ideas may be applied to solve nonlinear pdes in particular we construct generalized solutions to the navierstokes equations in three spatial dimensions subject to an initial condition | [['the', 'aim', 'of', 'this', 'paper', 'is', 'to', 'set', 'up', 'appropriate', 'uniform', 'convergence', 'spaces', 'in', 'which', 'to', 'reformulate', 'and', 'enrich', 'the', 'order', 'completion', 'method', 'for', 'nonlinear', 'pdes', 'in', 'this', 'regard', 'we', 'consider', 'an', 'appropriate', 'space', 'mlx', 'of', 'normal', 'lower', 'semicontinuous', 'functions', 'the', 'space', 'mlx', 'appears', 'in', 'the', 'ring', 'theory', 'of', 'cx', 'and', 'its', 'various', 'extensions', 'as', 'well', 'as', 'in', 'the', 'theory', 'of', 'nonlinear', 'pdes', 'we', 'define', 'a', 'uniform', 'convergence', 'structure', 'on', 'mlx', 'such', 'that', 'the', 'induced', 'convergence', 'structure', 'is', 'the', 'order', 'convergence', 'structure', 'the', 'uniform', 'convergence', 'space', 'completion', 'of', 'mlx', 'is', 'constructed', 'as', 'the', 'set', 'of', 'normal', 'lower', 'semicontinuous', 'functions', 'it', 'is', 'then', 'shown', 'how', 'these', 'ideas', 'may', 'be', 'applied', 'to', 'solve', 'nonlinear', 'pdes', 'in', 'particular', 'we', 'construct', 'generalized', 'solutions', 'to', 'the', 'navierstokes', 'equations', 'in', 'three', 'spatial', 'dimensions', 'subject', 'to', 'an', 'initial', 'condition']] | [-0.08943855132339663, 0.06201721195358197, -0.08840791045010767, 0.10501545963272678, -0.08747058636226664, -0.050192659932442686, -0.02245610449410213, 0.3572468138440992, -0.34587873422512505, -0.22139139828857768, 0.14074317602066774, -0.22048727159077922, -0.1641774968328801, 0.1644033142074477, -0.09880623937175242, 0.08020196220957476, -0.010650797951684304, 0.03898364938019464, -0.1400843229529335, -0.28898911039471964, 0.3666462887600629, -0.0062263266996579305, 0.2756807613980279, 0.004514063232239674, 0.11496169536346287, -0.04425925834485414, 0.0014148432175826395, 0.045177447866466755, -0.1778180549280285, 0.127482796101972, 0.25348638805955875, 0.10546057706850467, 0.300323761369906, -0.4051895747525674, -0.19043338734825904, 0.098037190562481, 0.14073168646692383, 0.049648007084298035, -0.00877841745915992, -0.25587036673801555, 0.08918723865645006, -0.14334768621131044, -0.1748128799072495, -0.10809111012691353, -0.011627628396540373, 0.04278678199360994, -0.3096576874372796, 0.024531546338094457, 0.0880704927090626, 0.016843165946545814, -0.11860729615772002, -0.05295592765535482, -0.016879538087364795, 0.08466025403785435, 0.03321703565112936, 0.06265735544377204, 0.04531640681626882, -0.10030987692615864, -0.07374480455958594, 0.3766568404848151, -0.10239685658598319, -0.2759267377638907, 0.19835927516617108, -0.1328941533821776, -0.13451824242700683, 0.09941157495433633, 0.2082222683573932, 0.15510143839690665, -0.13012309903129018, 0.15796904625268793, -0.0638333278545884, 0.11822718863241431, 0.07570841745473444, 0.04735992231166385, 0.08050967825604885, 0.15690894900277877, 0.17405991513431107, 0.15877538386672368, 0.01482185595633575, -0.0911866992682917, -0.33741026876889396, -0.13612271327468933, -0.14012089711755063, 0.0655729284891012, -0.10265499258843414, -0.19991110037429308, 0.3680471395403429, 0.13273594957144902, 0.18102951034564863, 0.06936964932494007, 0.24986188584113156, 0.1870344035200877, 0.005348092038978145, 0.057514895663850686, 0.1941054321412759, 0.19382003837293296, 0.08028352706848334, -0.17721715023799334, 0.042094586861573836, 0.15865108846319895] |
708.2786 | Electroweak Contributions to Thermal Gravitino Production | At high temperatures, gravitinos are generated in inelastic scattering
processes with particles that are in thermal equilibrium with the hot
primordial plasma. We consider the regeneration of gravitinos that starts with
completion of reheating after inflation. Following a consistent
finite-temperature approach, we provide the complete result for the gravitino
production rate to leading order in the gauge couplings. Focusing on gravitino
dark matter scenarios we compute the relic density of thermally produced
gravitinos. Moreover, we show that a conceivable determination of the gravitino
mass at future colliders will allow for a unique test of the viability of
thermal leptogenesis in the laboratory.
| hep-ph | at high temperatures gravitinos are generated in inelastic scattering processes with particles that are in thermal equilibrium with the hot primordial plasma we consider the regeneration of gravitinos that starts with completion of reheating after inflation following a consistent finitetemperature approach we provide the complete result for the gravitino production rate to leading order in the gauge couplings focusing on gravitino dark matter scenarios we compute the relic density of thermally produced gravitinos moreover we show that a conceivable determination of the gravitino mass at future colliders will allow for a unique test of the viability of thermal leptogenesis in the laboratory | [['at', 'high', 'temperatures', 'gravitinos', 'are', 'generated', 'in', 'inelastic', 'scattering', 'processes', 'with', 'particles', 'that', 'are', 'in', 'thermal', 'equilibrium', 'with', 'the', 'hot', 'primordial', 'plasma', 'we', 'consider', 'the', 'regeneration', 'of', 'gravitinos', 'that', 'starts', 'with', 'completion', 'of', 'reheating', 'after', 'inflation', 'following', 'a', 'consistent', 'finitetemperature', 'approach', 'we', 'provide', 'the', 'complete', 'result', 'for', 'the', 'gravitino', 'production', 'rate', 'to', 'leading', 'order', 'in', 'the', 'gauge', 'couplings', 'focusing', 'on', 'gravitino', 'dark', 'matter', 'scenarios', 'we', 'compute', 'the', 'relic', 'density', 'of', 'thermally', 'produced', 'gravitinos', 'moreover', 'we', 'show', 'that', 'a', 'conceivable', 'determination', 'of', 'the', 'gravitino', 'mass', 'at', 'future', 'colliders', 'will', 'allow', 'for', 'a', 'unique', 'test', 'of', 'the', 'viability', 'of', 'thermal', 'leptogenesis', 'in', 'the', 'laboratory']] | [-0.11666822694607225, 0.30703021717422146, -0.10635300212557994, 0.12110129287283794, -0.04561062170850003, -0.09690361293763214, -0.0008934079167232209, 0.32952806099737975, -0.19953731079951076, -0.2728234649094863, 0.06450525929126431, -0.28416979433420825, 0.04051241449390849, 0.15183827298802927, 0.039301406162991825, 0.03732607632364128, 0.07369764754548669, 0.025619368363050836, 0.009745757892161753, -0.27989384516681015, 0.29815270769519403, 0.09944114848222657, 0.19127571180134134, 0.12190504379424394, 0.04883360216284499, -0.036142251732777436, -0.016502117032217153, -0.07511950867688831, -0.15204198457257578, 0.039172705792474984, 0.2018865635641394, 0.11390573718338548, 0.13217561263088867, -0.4611927581147528, -0.24254058062683279, 0.184948276093814, 0.14485260980276793, 0.1261110635127361, -0.1281473387509822, -0.22749190090005011, 0.09074450949350756, -0.19324239415536618, -0.1145634081901745, -0.07183347293175757, -0.031753992744009286, -0.1128604681431955, -0.3255819726436326, 0.137940731876548, -0.05915323623134207, -0.0745639664043362, -0.0785837977937441, -0.09623745899400948, -0.04380005180342671, -0.038853697985520255, 0.1365305156225576, -0.07849731587110927, 0.218859897141217, -0.21563061856317753, -0.09564464172238812, 0.4146127491897228, -0.1818243833292988, -0.05259616663862093, 0.17345126430668376, -0.16749093673356316, -0.1997310916400131, 0.17406359161524212, 0.17439186199985937, 0.14063271398452915, -0.1409795548967725, 0.13941100022445121, 0.022180655417626028, 0.11067929257428748, 0.09322635417658032, 0.04293388248005809, 0.3581116042994693, 0.2198508626589661, 0.04895752814470553, 0.09597194172880229, -0.03923251629834447, -0.03914477613608481, -0.4048949413220672, -0.12926217554337985, -0.10039039274823724, 0.06556453381541788, -0.0944207308850452, -0.10797171037662409, 0.36623303500442383, 0.19836296676201562, 0.22330596975470876, 0.05221873784081682, 0.3053267711736992, 0.09776150467166421, -0.01440002264993667, 0.054606538062787376, 0.31989612332636524, 0.14882494879466499, 0.13016192235655205, -0.2759308404672672, -0.02638732599477996, 0.009076104547335383] |
708.2787 | Complete interpolating sequences, the discrete Muckenhoupt condition,
and conformal mapping | We extend the parameterization of sine-type functions in terms of conformal
mappings onto slit domains given by Eremenko and Sodin to the more general case
of generating functions of real complete interpolating sequences. It turns out
that the cuts have to fulfill the discrete Muckenhoupt condition studied
earlier by Lyubarskii and Seip.
| math.CV | we extend the parameterization of sinetype functions in terms of conformal mappings onto slit domains given by eremenko and sodin to the more general case of generating functions of real complete interpolating sequences it turns out that the cuts have to fulfill the discrete muckenhoupt condition studied earlier by lyubarskii and seip | [['we', 'extend', 'the', 'parameterization', 'of', 'sinetype', 'functions', 'in', 'terms', 'of', 'conformal', 'mappings', 'onto', 'slit', 'domains', 'given', 'by', 'eremenko', 'and', 'sodin', 'to', 'the', 'more', 'general', 'case', 'of', 'generating', 'functions', 'of', 'real', 'complete', 'interpolating', 'sequences', 'it', 'turns', 'out', 'that', 'the', 'cuts', 'have', 'to', 'fulfill', 'the', 'discrete', 'muckenhoupt', 'condition', 'studied', 'earlier', 'by', 'lyubarskii', 'and', 'seip']] | [-0.08815108118534017, 0.04997468854372318, -0.08180171287117097, 0.09233321922902878, -0.0805666408000084, -0.10638875135471328, 0.028129872651054308, 0.36366619635373354, -0.2201056698193917, -0.21420270208126077, 0.08658505345542486, -0.23769247345626354, -0.13875379415157324, 0.21295956862517273, -0.08751571482907121, 0.10274208553780156, 0.03974816378635856, -0.06194775753045598, -0.10874320281436667, -0.320062242842351, 0.38651956187990993, 0.00771040184638248, 0.22133821783175406, 0.04589273505217324, 0.06283343723827364, 0.06719326379243284, -0.06653792693172224, -0.02851062798156188, -0.18772604517583275, 0.10697922966657923, 0.2407834377641288, 0.1329252710386824, 0.23226284257207924, -0.3662959339383703, -0.1994754106786926, 0.14315314093031561, 0.1019841269769061, -0.012918736463269362, 0.03104322514571742, -0.3045491911426115, 0.11267594121790563, -0.0832065110309766, -0.14962525651432002, -0.10359842889010906, 0.026293014462750692, 0.07180777604046923, -0.2873333192143876, 0.03327581347324527, 0.12713677989533886, 0.041539039194154054, -0.06725219927298334, -0.10199333170133357, -0.04887212689321201, 0.07773139675219472, 0.016921049879434016, 0.10671910668651645, 0.04757833936645721, -0.08724062280648817, -0.09450257467464186, 0.33115146545326124, -0.008963394901142098, -0.2812612524900872, 0.13051710066681083, -0.1915522650278245, -0.13269775944690293, 0.08675651276448312, 0.08127585838141946, 0.16928739111440685, -0.1454306658035001, 0.1418536708918579, -0.11239730584650086, 0.042082983400457755, 0.20943287996431956, -0.027742790016838208, 0.10831754439725326, 0.024988995148585394, 0.08729403399271317, 0.2146627766241391, 0.05803457254212564, -0.10175318992696702, -0.3216696465567041, -0.10796606083973669, -0.17343462969606313, 0.0707252539622669, -0.07320248651656304, -0.1540351594404246, 0.39324174287657326, 0.050916849607277145, 0.18757340369316247, 0.09826552575955597, 0.1792012327350676, 0.11513313457656366, 0.1027614780939005, 0.01194942243791257, 0.16981882492725092, 0.18441497108254296, 0.08300974577119072, -0.1193182142272305, -0.007175574401536813, 0.13573325491653612] |
708.2788 | Integrating users' needs into multimedia information retrieval system | The exponential growth of multimedia information and the development of
various communication media generated new problems at various levels including
the rate of flow of information, problems of storage and management. The
difficulty which arises is no longer the existence of information but rather
the access to this information. When designing multimedia information retrieval
system, it is appropriate to bear in mind the potential users and their
information needs. We assumed that multimedia information representation which
takes into account explicitly the users' needs and the cases of use could
contribute to the adaptation potentials of the system for the end-users. We
believe also that responses of multimedia information system would be more
relevant to the users' needs if the types of results to be used from the system
were identified before the design and development of the system. We propose the
integration of the users' information needs. More precisely integrating usage
contexts of resulting information in an information system (during creation and
feedback) should enhance more pertinent users' need. The first section of this
study is dedicated to traditional multimedia information systems and
specifically the approaches of representing multimedia information. Taking into
account the dynamism of users, these approaches do not permit the explicit
integration of the users' information needs. In this paper, we will present our
proposals based on economic intelligence approach. This approach emphasizes the
importance of starting any process of information retrieval witch the user
information need.
| cs.IR | the exponential growth of multimedia information and the development of various communication media generated new problems at various levels including the rate of flow of information problems of storage and management the difficulty which arises is no longer the existence of information but rather the access to this information when designing multimedia information retrieval system it is appropriate to bear in mind the potential users and their information needs we assumed that multimedia information representation which takes into account explicitly the users needs and the cases of use could contribute to the adaptation potentials of the system for the endusers we believe also that responses of multimedia information system would be more relevant to the users needs if the types of results to be used from the system were identified before the design and development of the system we propose the integration of the users information needs more precisely integrating usage contexts of resulting information in an information system during creation and feedback should enhance more pertinent users need the first section of this study is dedicated to traditional multimedia information systems and specifically the approaches of representing multimedia information taking into account the dynamism of users these approaches do not permit the explicit integration of the users information needs in this paper we will present our proposals based on economic intelligence approach this approach emphasizes the importance of starting any process of information retrieval witch the user information need | [['the', 'exponential', 'growth', 'of', 'multimedia', 'information', 'and', 'the', 'development', 'of', 'various', 'communication', 'media', 'generated', 'new', 'problems', 'at', 'various', 'levels', 'including', 'the', 'rate', 'of', 'flow', 'of', 'information', 'problems', 'of', 'storage', 'and', 'management', 'the', 'difficulty', 'which', 'arises', 'is', 'no', 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708.2789 | Collective excitations of trapped one-dimensional dipolar quantum gases | We calculate the excitation modes of a 1D dipolar quantum gas confined in a
harmonic trap with frequency $\omega_0$ and predict how the frequency of the
breathing n=2 mode characterizes the interaction strength evolving from the
Tonks-Girardeau value $\omega_2=2\omega_0$ to the quasi-ordered, super-strongly
interacting value $\omega_2=\sqrt{5}\omega_0$. Our predictions are obtained
within a hydrodynamic Luttinger-Liquid theory after applying the Local Density
Approximation to the equation of state for the homogeneous dipolar gas, which
are in turn determined from Reptation Quantum Monte Carlo simulations. They are
shown to be in quite accurate agreement with the results of a sum-rule
approach. These effects can be observed in current experiments, revealing the
Luttinger-liquid nature of 1D dipolar Bose gases.
| cond-mat.other cond-mat.str-el | we calculate the excitation modes of a 1d dipolar quantum gas confined in a harmonic trap with frequency omega_0 and predict how the frequency of the breathing n2 mode characterizes the interaction strength evolving from the tonksgirardeau value omega_22omega_0 to the quasiordered superstrongly interacting value omega_2sqrt5omega_0 our predictions are obtained within a hydrodynamic luttingerliquid theory after applying the local density approximation to the equation of state for the homogeneous dipolar gas which are in turn determined from reptation quantum monte carlo simulations they are shown to be in quite accurate agreement with the results of a sumrule approach these effects can be observed in current experiments revealing the luttingerliquid nature of 1d dipolar bose gases | [['we', 'calculate', 'the', 'excitation', 'modes', 'of', 'a', '1d', 'dipolar', 'quantum', 'gas', 'confined', 'in', 'a', 'harmonic', 'trap', 'with', 'frequency', 'omega_0', 'and', 'predict', 'how', 'the', 'frequency', 'of', 'the', 'breathing', 'n2', 'mode', 'characterizes', 'the', 'interaction', 'strength', 'evolving', 'from', 'the', 'tonksgirardeau', 'value', 'omega_22omega_0', 'to', 'the', 'quasiordered', 'superstrongly', 'interacting', 'value', 'omega_2sqrt5omega_0', 'our', 'predictions', 'are', 'obtained', 'within', 'a', 'hydrodynamic', 'luttingerliquid', 'theory', 'after', 'applying', 'the', 'local', 'density', 'approximation', 'to', 'the', 'equation', 'of', 'state', 'for', 'the', 'homogeneous', 'dipolar', 'gas', 'which', 'are', 'in', 'turn', 'determined', 'from', 'reptation', 'quantum', 'monte', 'carlo', 'simulations', 'they', 'are', 'shown', 'to', 'be', 'in', 'quite', 'accurate', 'agreement', 'with', 'the', 'results', 'of', 'a', 'sumrule', 'approach', 'these', 'effects', 'can', 'be', 'observed', 'in', 'current', 'experiments', 'revealing', 'the', 'luttingerliquid', 'nature', 'of', '1d', 'dipolar', 'bose', 'gases']] | [-0.1234937392976712, 0.21815953724729145, -0.09773452667338131, 0.041717405723556214, 0.014278822957612245, -0.1476589161820248, 0.013005732516428472, 0.36167351727629393, -0.23599764609099488, -0.26065469304083194, 0.0051654588948292415, -0.2778854282692371, -0.07614669710628491, 0.19312057110060632, 0.09665925981089539, 0.0455685630358294, 0.05431826478406061, 0.009484698493198484, -0.08160781395617477, -0.2013115572683365, 0.25129941475486994, 0.056141772494956325, 0.2799938532433151, 0.04134180762112734, 0.014328386251344881, -0.025609062766178255, 0.05041345208471196, 0.026473716873906355, -0.19053811479392832, 0.07159002360978485, 0.2435283112402519, -0.05018436961469397, 0.21721956512964932, -0.44550494229899046, -0.22320013441582234, 0.05713808112077217, 0.17021905671726847, 0.19741484895245526, -0.007026613453007509, -0.3151838026726536, -0.03611145188735254, -0.1835880380915066, -0.19156268858804112, -0.10606847107858579, -0.02739974541540167, 0.05757782335055217, -0.2925579026805039, 0.16235223502143228, 0.022890634486550647, 0.03875890984900494, -0.09517215569379979, -0.05489754861125937, -0.029190453972700422, 0.06971159051234249, 0.001480542082108755, 0.03790918189158614, 0.1783050825547394, -0.15580728481805975, -0.06973388219928056, 0.39227051116460193, -0.12000175286908593, -0.17573596017339382, 0.2221513194716082, -0.19205782053975667, -0.0647605136088384, 0.15950021564762676, 0.10991254189274216, 0.06036118699023418, -0.10428318121074905, 0.0659834972074857, -0.0419807328597387, 0.17110559496764852, 0.03183538168751165, 0.013653332284541977, 0.27262788425834306, 0.15292773499623336, -0.03669080770351982, 0.13857657213456334, -0.08928873927324218, -0.18215334535765965, -0.2389083671325867, -0.09002764974357622, -0.23610175096103303, 0.052931838116682735, -0.06304718557715856, -0.16313870762659244, 0.37528659801402714, 0.17204371573757873, 0.1811275086571685, 0.03614796691190913, 0.26425283208625405, 0.16853157562446838, 0.02521389739307682, 0.045269838233470125, 0.29664300950820993, 0.20104034203805227, 0.059960413089566, -0.3046373297064771, -0.014099727982276045, 0.06881778508185747] |
708.279 | Spectral models for solar-scaled and alpha-enhanced stellar populations | We present the first models allowing one to explore in a consistent way the
influence of changes in the alpha-element-to-iron abundance ratio on the
high-resolution spectral properties of evolving stellar populations. The models
cover the wavelength range 300-1340nm at a resolution of FWHM=1AA, for
metallicities in the range 0.005<=Z<=0.048 and stellar population ages 3 to 14
Gyr. These models are based on a recent library of synthetic stellar spectra
and a new library of stellar evolutionary tracks, both computed for three
different [Fe/H] (-0.5,0.0 and 0.2) and two different [alpha/Fe] (0.0 and 0.4).
We expect our fully synthetic models to be primarily useful for evaluating the
differential effect of changes in the alpha/Fe ratio on spectral properties
such as broad-band colours and narrow spectral features. In addition, we assess
the accuracy of absolute model predictions in two ways: first, by comparing the
predictions of models for scaled-solar metal abundances [alpha/Fe]=0.0) to
those of existing models based on libraries of observed stellar spectra; and
secondly, by comparing the predictions of models for alpha-enhanced metal
abundances ([alpha/Fe]=0.4) to observed spectra of massive early-type galaxies
in the SDSS-DR4. We find that our models predict accurate strengths for those
spectral indices that are strongly sensitive to the abundances of Fe and alpha
elements. The predictions are less reliable for the strengths of other spectral
features, such as those dominated by the abundances of C and N, as expected
from the fact that the models do not yet allow one to explore the influence of
these elements in an independent way. We conclude that our models are a
powerful tool for extracting new information about the chemical properties of
galaxies for which high-quality spectra have been gathered by modern surveys.
| astro-ph | we present the first models allowing one to explore in a consistent way the influence of changes in the alphaelementtoiron abundance ratio on the highresolution spectral properties of evolving stellar populations the models cover the wavelength range 3001340nm at a resolution of fwhm1aa for metallicities in the range 0005z0048 and stellar population ages 3 to 14 gyr these models are based on a recent library of synthetic stellar spectra and a new library of stellar evolutionary tracks both computed for three different feh 0500 and 02 and two different alphafe 00 and 04 we expect our fully synthetic models to be primarily useful for evaluating the differential effect of changes in the alphafe ratio on spectral properties such as broadband colours and narrow spectral features in addition we assess the accuracy of absolute model predictions in two ways first by comparing the predictions of models for scaledsolar metal abundances alphafe00 to those of existing models based on libraries of observed stellar spectra and secondly by comparing the predictions of models for alphaenhanced metal abundances alphafe04 to observed spectra of massive earlytype galaxies in the sdssdr4 we find that our models predict accurate strengths for those spectral indices that are strongly sensitive to the abundances of fe and alpha elements the predictions are less reliable for the strengths of other spectral features such as those dominated by the abundances of c and n as expected from the fact that the models do not yet allow one to explore the influence of these elements in an independent way we conclude that our models are a powerful tool for extracting new information about the chemical properties of galaxies for which highquality spectra have been gathered by modern surveys | [['we', 'present', 'the', 'first', 'models', 'allowing', 'one', 'to', 'explore', 'in', 'a', 'consistent', 'way', 'the', 'influence', 'of', 'changes', 'in', 'the', 'alphaelementtoiron', 'abundance', 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708.2791 | Vector spectropolarimetry of dark-cored penumbral filaments with Hinode | We present spectropolarimetric measurements of dark-cored penumbral filaments
taken with Hinode at a resolution of 0.3". Our observations demonstrate that
dark-cored filaments are more prominent in polarized light than in continuum
intensity. Far from disk center, the Stokes profiles emerging from these
structures are very asymmetric and show evidence for magnetic fields of
different inclinations along the line of sight, together with strong Evershed
flows of at least 6-7 km/s. In sunspots closer to disk center, dark-cored
penumbral filaments exhibit regular Stokes profiles with little asymmetries due
to the vanishing line-of-sight component of the horizontal Evershed flow. An
inversion of the observed spectra indicates that the magnetic field is weaker
and more inclined in the dark cores as compared with the surrounding bright
structures. This is compatible with the idea that dark-cored filaments are the
manifestation of flux tubes carrying hot Evershed flows.
| astro-ph | we present spectropolarimetric measurements of darkcored penumbral filaments taken with hinode at a resolution of 03 our observations demonstrate that darkcored filaments are more prominent in polarized light than in continuum intensity far from disk center the stokes profiles emerging from these structures are very asymmetric and show evidence for magnetic fields of different inclinations along the line of sight together with strong evershed flows of at least 67 kms in sunspots closer to disk center darkcored penumbral filaments exhibit regular stokes profiles with little asymmetries due to the vanishing lineofsight component of the horizontal evershed flow an inversion of the observed spectra indicates that the magnetic field is weaker and more inclined in the dark cores as compared with the surrounding bright structures this is compatible with the idea that darkcored filaments are the manifestation of flux tubes carrying hot evershed flows | [['we', 'present', 'spectropolarimetric', 'measurements', 'of', 'darkcored', 'penumbral', 'filaments', 'taken', 'with', 'hinode', 'at', 'a', 'resolution', 'of', '03', 'our', 'observations', 'demonstrate', 'that', 'darkcored', 'filaments', 'are', 'more', 'prominent', 'in', 'polarized', 'light', 'than', 'in', 'continuum', 'intensity', 'far', 'from', 'disk', 'center', 'the', 'stokes', 'profiles', 'emerging', 'from', 'these', 'structures', 'are', 'very', 'asymmetric', 'and', 'show', 'evidence', 'for', 'magnetic', 'fields', 'of', 'different', 'inclinations', 'along', 'the', 'line', 'of', 'sight', 'together', 'with', 'strong', 'evershed', 'flows', 'of', 'at', 'least', '67', 'kms', 'in', 'sunspots', 'closer', 'to', 'disk', 'center', 'darkcored', 'penumbral', 'filaments', 'exhibit', 'regular', 'stokes', 'profiles', 'with', 'little', 'asymmetries', 'due', 'to', 'the', 'vanishing', 'lineofsight', 'component', 'of', 'the', 'horizontal', 'evershed', 'flow', 'an', 'inversion', 'of', 'the', 'observed', 'spectra', 'indicates', 'that', 'the', 'magnetic', 'field', 'is', 'weaker', 'and', 'more', 'inclined', 'in', 'the', 'dark', 'cores', 'as', 'compared', 'with', 'the', 'surrounding', 'bright', 'structures', 'this', 'is', 'compatible', 'with', 'the', 'idea', 'that', 'darkcored', 'filaments', 'are', 'the', 'manifestation', 'of', 'flux', 'tubes', 'carrying', 'hot', 'evershed', 'flows']] | [-0.16295278947344505, 0.14953299688911667, -0.03259398301711658, 0.07034283065338053, -0.10546138564815054, -0.0715110841747764, -0.05820616954852911, 0.4744162143214599, -0.1978080105297007, -0.3171833077693111, 0.06837687480659875, -0.27897979246152865, -0.05050532466412841, 0.1903877485530464, -0.0016837295314127748, -0.0695791672345355, 0.08283132258021123, -0.061163295359982474, 0.008445190225070068, -0.13022636529546674, 0.29287463937514835, 0.06601854043823856, 0.2410331696688712, -0.002029300804113175, 0.03561225750034193, -0.1351141814155491, -0.07009159200140959, 0.07417613096613358, -0.092950218786122, 0.07119510832757174, 0.18382357943711894, 0.026585338434116538, 0.1751947634612451, -0.47650223444183387, -0.2089259726861557, 0.005921188325106681, 0.20437022828711912, 0.041586318274738486, -0.029258908478622943, -0.2986519089085864, 0.10497618310635427, -0.052932123907587746, -0.18851745430822972, 0.059028457635297224, 0.03859440533695026, 0.04051401691472197, -0.189063012345948, 0.11913517233752809, 0.031175180814567615, 0.19064917897974903, -0.08295539407209343, -0.08520157805520233, -0.12451319948939438, 0.055385347185461044, 0.11912845385788412, 0.03675467307985454, 0.19510701678691666, -0.17494959882916428, -0.05263501471820307, 0.3753734255287718, -0.09408841919126656, -0.025145048461203183, 0.1881603360488698, -0.23263108198062055, -0.1344340941803595, 0.2579831750347064, 0.12418814158959353, 0.08648025426709165, -0.01998568476027959, -0.07577895578827344, -0.1393645229404206, 0.15612045812935055, 0.07852402050048113, 0.007676479090786689, 0.34555436947571855, 0.0554725467390218, 0.0969616835936904, 0.13062463187892642, -0.26887492985314837, -0.09845470114109608, -0.2646012983962216, -0.10991502675989812, -0.05580274512587519, 0.048205245237380685, -0.09996509240387444, -0.15057736359719004, 0.3468746653484454, 0.12741481911833072, 0.2750450746608911, 0.0019023906475362869, 0.3334262144940716, 0.05601462120698257, 0.1311946540282896, 0.18739255062805918, 0.30963060711477913, 0.2770807219838554, 0.20947326218930784, -0.20505486615938362, 0.025020766794889956, -0.03269112764343202] |
708.2792 | Long nuclear spin decay times controlled by optical pumping in
individual quantum dots | Nuclear polarization dynamics are measured in the nuclear spin bi-stability
regime in a single optically pumped InGaAs/GaAs quantum dot. The controlling
role of nuclear spin diffusion from the dot into the surrounding material is
revealed in pump-probe measurements of the non-linear nuclear spin dynamics. We
measure nuclear spin decay times in the range 0.2-5 sec, strongly dependent on
the optical pumping time. The long nuclear spin decay arises from polarization
of the material surrounding the dot by spin diffusion for long (>5sec) pumping
times. The time-resolved methods allow the detection of the unstable nuclear
polarization state in the bi-stability regime otherwise undetectable in cw
experiments.
| cond-mat.mes-hall cond-mat.mtrl-sci | nuclear polarization dynamics are measured in the nuclear spin bistability regime in a single optically pumped ingaasgaas quantum dot the controlling role of nuclear spin diffusion from the dot into the surrounding material is revealed in pumpprobe measurements of the nonlinear nuclear spin dynamics we measure nuclear spin decay times in the range 025 sec strongly dependent on the optical pumping time the long nuclear spin decay arises from polarization of the material surrounding the dot by spin diffusion for long 5sec pumping times the timeresolved methods allow the detection of the unstable nuclear polarization state in the bistability regime otherwise undetectable in cw experiments | [['nuclear', 'polarization', 'dynamics', 'are', 'measured', 'in', 'the', 'nuclear', 'spin', 'bistability', 'regime', 'in', 'a', 'single', 'optically', 'pumped', 'ingaasgaas', 'quantum', 'dot', 'the', 'controlling', 'role', 'of', 'nuclear', 'spin', 'diffusion', 'from', 'the', 'dot', 'into', 'the', 'surrounding', 'material', 'is', 'revealed', 'in', 'pumpprobe', 'measurements', 'of', 'the', 'nonlinear', 'nuclear', 'spin', 'dynamics', 'we', 'measure', 'nuclear', 'spin', 'decay', 'times', 'in', 'the', 'range', '025', 'sec', 'strongly', 'dependent', 'on', 'the', 'optical', 'pumping', 'time', 'the', 'long', 'nuclear', 'spin', 'decay', 'arises', 'from', 'polarization', 'of', 'the', 'material', 'surrounding', 'the', 'dot', 'by', 'spin', 'diffusion', 'for', 'long', '5sec', 'pumping', 'times', 'the', 'timeresolved', 'methods', 'allow', 'the', 'detection', 'of', 'the', 'unstable', 'nuclear', 'polarization', 'state', 'in', 'the', 'bistability', 'regime', 'otherwise', 'undetectable', 'in', 'cw', 'experiments']] | [-0.12212573669743367, 0.252436833232283, -0.033062433931403436, 0.01244745801467126, 0.05275222797913907, -0.14428864479906714, -0.016764369983530533, 0.4189007953883937, -0.30365465392913815, -0.23121490109210405, 0.06741193336963008, -0.2743007765384391, 0.008126273643798552, 0.22476352646481246, 0.08715014045055096, 0.01949981775452705, -0.01721352047752589, -0.036800693033281, -0.05491657288691316, -0.07946408321507849, 0.24247343205990127, 0.02226736370917374, 0.25204813587837493, 0.061586249861508034, 0.0983603182875623, 0.050501737860031426, 0.050724627306828134, -0.06995329169484858, -0.1287359006058138, 0.02341859068166321, 0.2502721806343358, -0.05802363806063882, 0.1910732765771592, -0.4985550248887963, -0.1978852049841617, 0.07203199121599588, 0.12793486014169714, 0.1891442616470158, -0.08375265955944017, -0.312648353453439, -0.07468179453056879, -0.17341500020120293, -0.10177002651975132, -0.05848755447480541, 0.05310801624392088, 0.019560026022820517, -0.2193705492402212, 0.15717799364714524, 0.05572465333254793, 0.0045437911153735164, -0.09239835777911, -0.05612632639419574, -0.024245455341700178, 0.08029442311369796, -0.00036967254933328007, 0.04209348550872304, 0.3060591060605545, -0.17608209233954908, -0.12975781614211604, 0.31379313475918025, -0.11743073966219807, -0.09935139853937122, 0.11119470439958744, -0.3134067536582454, -0.05695493187522516, 0.19771525403484702, 0.15260943261763224, 0.16238615281942587, -0.12463474517706065, 0.04186919285208345, 0.00857539414965476, 0.23393075513348988, 0.01329191632864352, 0.15470317125212973, 0.267934224048916, 0.2558097624737107, 0.02593241549598483, 0.10000510822618917, -0.19733785714309376, -0.13585786104130632, -0.21097754229916832, -0.09502363286670655, -0.1914749088553855, 0.1946090841710639, -0.07144970437422252, -0.05489290215057106, 0.45066006766417277, 0.07746645060475342, 0.13941928291415723, -0.11067355457299317, 0.2784155792502973, 0.12646714299626183, 0.058501784592338554, 0.017825233380650528, 0.34598222408945173, 0.26006620731249525, 0.10853013806851007, -0.4209270717468686, 0.07091009475810167, -0.08045042042907041] |
708.2793 | WEBT and XMM-Newton observations of 3C 454.3 during the post-outburst
phase. Detection of the little and big blue bumps | The blazar 3C 454.3 underwent an unprecedented optical outburst in spring
2005. This was first followed by a mm and then by a cm radio outburst, which
peaked in February 2006. We report on follow-up observations by the WEBT to
study the multiwavelength emission in the post-outburst phase. XMM-Newton
observations on July and December 2006 added information on the X-ray and UV
fluxes. The source was in a faint state. The radio flux at the higher
frequencies showed a fast decreasing trend, which represents the tail of the
big radio outburst. It was followed by a quiescent state, common at all radio
frequencies. In contrast, moderate activity characterized the NIR and optical
light curves, with a progressive increase of the variability amplitude with
increasing wavelength. We ascribe this redder-when-brighter behaviour to the
presence of a "little blue bump" due to line emission from the broad line
region, which is clearly visible in the source SED during faint states.
Moreover, the data from the XMM-Newton OM reveal a rise of the SED in the UV,
suggesting the existence of a "big blue bump" due to thermal emission from the
accretion disc. The X-ray spectra are well fitted with a power-law model with
photoelectric absorption, possibly larger than the Galactic one. However, the
comparison with previous X-ray observations would imply that the amount of
absorbing matter is variable. Alternatively, the intrinsic X-ray spectrum
presents a curvature, which may depend on the X-ray brightness. In this case,
two scenarios are possible.
| astro-ph | the blazar 3c 4543 underwent an unprecedented optical outburst in spring 2005 this was first followed by a mm and then by a cm radio outburst which peaked in february 2006 we report on followup observations by the webt to study the multiwavelength emission in the postoutburst phase xmmnewton observations on july and december 2006 added information on the xray and uv fluxes the source was in a faint state the radio flux at the higher frequencies showed a fast decreasing trend which represents the tail of the big radio outburst it was followed by a quiescent state common at all radio frequencies in contrast moderate activity characterized the nir and optical light curves with a progressive increase of the variability amplitude with increasing wavelength we ascribe this redderwhenbrighter behaviour to the presence of a little blue bump due to line emission from the broad line region which is clearly visible in the source sed during faint states moreover the data from the xmmnewton om reveal a rise of the sed in the uv suggesting the existence of a big blue bump due to thermal emission from the accretion disc the xray spectra are well fitted with a powerlaw model with photoelectric absorption possibly larger than the galactic one however the comparison with previous xray observations would imply that the amount of absorbing matter is variable alternatively the intrinsic xray spectrum presents a curvature which may depend on the xray brightness in this case two scenarios are possible | [['the', 'blazar', '3c', '4543', 'underwent', 'an', 'unprecedented', 'optical', 'outburst', 'in', 'spring', '2005', 'this', 'was', 'first', 'followed', 'by', 'a', 'mm', 'and', 'then', 'by', 'a', 'cm', 'radio', 'outburst', 'which', 'peaked', 'in', 'february', '2006', 'we', 'report', 'on', 'followup', 'observations', 'by', 'the', 'webt', 'to', 'study', 'the', 'multiwavelength', 'emission', 'in', 'the', 'postoutburst', 'phase', 'xmmnewton', 'observations', 'on', 'july', 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708.2794 | Freezing distributed entanglement in spin chains | We show how to freeze distributed entanglement that has been created from the
natural dynamics of spin chain systems. The technique that we propose simply
requires single-qubit operations and isolates the entanglement in specific
qubits at the ends of branches. Such frozen entanglement provides a useful
resource, for example for teleportation or distributed quantum processing. The
scheme can be applied to a wide range of systems -- including actual spin
systems and alternative qubit embodiments in strings of quantum dots, molecules
or atoms.
| quant-ph | we show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems the technique that we propose simply requires singlequbit operations and isolates the entanglement in specific qubits at the ends of branches such frozen entanglement provides a useful resource for example for teleportation or distributed quantum processing the scheme can be applied to a wide range of systems including actual spin systems and alternative qubit embodiments in strings of quantum dots molecules or atoms | [['we', 'show', 'how', 'to', 'freeze', 'distributed', 'entanglement', 'that', 'has', 'been', 'created', 'from', 'the', 'natural', 'dynamics', 'of', 'spin', 'chain', 'systems', 'the', 'technique', 'that', 'we', 'propose', 'simply', 'requires', 'singlequbit', 'operations', 'and', 'isolates', 'the', 'entanglement', 'in', 'specific', 'qubits', 'at', 'the', 'ends', 'of', 'branches', 'such', 'frozen', 'entanglement', 'provides', 'a', 'useful', 'resource', 'for', 'example', 'for', 'teleportation', 'or', 'distributed', 'quantum', 'processing', 'the', 'scheme', 'can', 'be', 'applied', 'to', 'a', 'wide', 'range', 'of', 'systems', 'including', 'actual', 'spin', 'systems', 'and', 'alternative', 'qubit', 'embodiments', 'in', 'strings', 'of', 'quantum', 'dots', 'molecules', 'or', 'atoms']] | [-0.17332280469808456, 0.21267277966594186, -0.08142906655103149, 0.02248299589789495, 0.03648369722976917, -0.23564680507860897, 0.052146905309111785, 0.39965313318662526, -0.2768064076762374, -0.2684853036956089, 0.060396276729567565, -0.24132173066595342, -0.08056226491405652, 0.24171048374960152, -0.03977669251333105, 0.1127760986479499, 0.06713925660928576, 0.04163199485415911, -0.03130906070980084, -0.24193761815890533, 0.27443084171291715, 0.01523974803333148, 0.29031421044250816, 0.04201726773867338, 0.1338264225050807, 0.030801695481896763, 0.08691358403870608, -0.022019538789896702, -0.08682989494157416, 0.10760481282784717, 0.3092164754322389, 0.15752960865033744, 0.21634839016308144, -0.49262212698416014, -0.22859453006715671, 0.1102386721019085, 0.18724606120277468, 0.23514466261684258, -0.043077659918131624, -0.2757122183002804, 0.024604256298938174, -0.19080734509611275, -0.06321734128088304, -0.13635018097645626, 0.03221887647651318, -0.015177883849501974, -0.23724844496379174, 0.076925907545246, 0.06873477887427548, 0.05416586262560109, 0.05850749754733065, -0.04251615607702151, 0.03191527485756612, 0.1571907054053665, -0.07604637642095728, -0.010604771519954339, 0.2035893776408601, -0.0878073413481527, -0.19420368649156355, 0.3695012173763045, -0.029441381293553406, -0.17636104116625176, 0.20474323377058637, -0.06571916788646089, -0.13944121527417405, 0.029282428028925164, 0.135739048568123, 0.1155738055183575, -0.1377491120663585, 0.07878151104257373, 0.03741233677762311, 0.20318121572093265, 0.0512605151843007, 0.1442140937873685, 0.2672278467301711, 0.12811500033386414, 0.10544071078482198, 0.22642710244300115, -0.06293889213139198, -0.1682426132625196, -0.23979479146030983, -0.2158253154626525, -0.24369701930526189, 0.0897608879221058, -0.04419550375136967, -0.11985459411516786, 0.3887475647314692, 0.13748400518086162, 0.13871449572261332, -0.03637420783307767, 0.27145790304170875, 0.08602593045272841, 0.11100343237744599, 0.06453815854449825, 0.16179032100182844, 0.13703555262806574, 0.07458205814132603, -0.24386357087727137, 0.020454068088949454, -0.021930824079346364] |
708.2795 | Superconductivity and antiferromagnetism in the two-dimensional Hubbard
model: a variational study | A variational ground state of the repulsive Hubbard model on a square lattice
is investigated numerically for an intermediate coupling strength (U = 8t) and
for moderate sizes (from 6 x 6 to 10 x 10). Our ansatz is clearly superior to
other widely used variational wave functions. The results for order parameters
and correlation functions provide new insight for the antiferromagnetic state
at half filling as well as strong evidence for a superconducting phase away
from half filling.
| cond-mat.str-el cond-mat.supr-con | a variational ground state of the repulsive hubbard model on a square lattice is investigated numerically for an intermediate coupling strength u 8t and for moderate sizes from 6 x 6 to 10 x 10 our ansatz is clearly superior to other widely used variational wave functions the results for order parameters and correlation functions provide new insight for the antiferromagnetic state at half filling as well as strong evidence for a superconducting phase away from half filling | [['a', 'variational', 'ground', 'state', 'of', 'the', 'repulsive', 'hubbard', 'model', 'on', 'a', 'square', 'lattice', 'is', 'investigated', 'numerically', 'for', 'an', 'intermediate', 'coupling', 'strength', 'u', '8t', 'and', 'for', 'moderate', 'sizes', 'from', '6', 'x', '6', 'to', '10', 'x', '10', 'our', 'ansatz', 'is', 'clearly', 'superior', 'to', 'other', 'widely', 'used', 'variational', 'wave', 'functions', 'the', 'results', 'for', 'order', 'parameters', 'and', 'correlation', 'functions', 'provide', 'new', 'insight', 'for', 'the', 'antiferromagnetic', 'state', 'at', 'half', 'filling', 'as', 'well', 'as', 'strong', 'evidence', 'for', 'a', 'superconducting', 'phase', 'away', 'from', 'half', 'filling']] | [-0.11315797875898007, 0.14281290539600797, -0.0013495442481377185, 0.12109033373268083, -0.025107902594101734, -0.16342634280833104, 0.10896806366956578, 0.38453320499796134, -0.24144401864554638, -0.28804966150439726, 0.10491616308736877, -0.31037035832802456, -0.08377883115257972, 0.19386507221796095, 0.13029749834766755, 0.022553215018258646, -0.0008206049529596781, 0.018995648032451313, -0.1580253787792455, -0.2156024993224165, 0.2783141153601882, -0.01249474731202309, 0.2681706303802247, 0.0965356776663938, 0.08914435888306262, 0.008987176620091, 0.14079514445545963, 0.014621534253446719, -0.15362035958335185, 0.03439449378623603, 0.21064151966801056, -0.0340943016195431, 0.2670961591677788, -0.3771835719354642, -0.19551252849543324, 0.01198703934175846, 0.14257456284637252, 0.1195447609330026, -0.0156894516847574, -0.30603868507135373, 0.03740736030233212, -0.18955354775803593, -0.17535630119322704, -0.08950581781279582, 0.023634338524574652, 0.016735123303265143, -0.304825039437184, 0.1030750163197995, 0.007405855319797037, 0.07505465492319602, -0.08151556415937077, -0.23030430264770985, -0.0385269977671739, 0.10225401086231264, -0.014545099220226686, 0.15252747713253859, 0.04712512036069082, -0.13041415410593915, -0.0708261415868317, 0.33726822219502467, -0.06948545407533693, -0.16251833446753713, 0.20138865545726356, -0.14077969669149473, -0.07750061316749988, 0.20521182665983453, 0.12872645484570128, 0.05496470722107169, -0.10519094938316788, 0.047663988260468707, -0.023760531957146343, 0.2507818548892362, -0.0027376327496499587, 0.0418166054221682, 0.1783157563648927, 0.16403182480149928, 0.08061225281264155, 0.1701587127702227, -0.137415503948712, -0.11809903396389042, -0.2850900288575735, -0.11936030684946439, -0.22768455884085062, 0.0861268381993749, -0.11492592556579695, -0.1493920738423931, 0.3884205924382863, 0.12380211708697085, 0.18450998422355416, 0.023352179592714097, 0.22376871560342038, 0.0907016728619615, 0.051844752847384185, 0.051045691748209394, 0.2562340220364814, 0.14467071335261258, 0.07275926185031541, -0.17447114664201552, 0.02084133088087233, 0.08164979839243759] |
708.2796 | The spatial clustering of mid-IR selected star forming galaxies at z ~ 1
in the GOODS fields | We present the first spatial clustering measurements of z~1, 24um-selected,
star forming galaxies in the Great Observatories Origins Deep Survey (GOODS).
The sample under investigation includes 495 objects in GOODS-South and 811
objects in GOODS-North selected down to flux densities of f_24>20 uJy and
z_AB<23.5 mag, for which spectroscopic redshifts are available. The median
redshift, IR luminosity and star formation rate (SFR) of the samples are z~0.8,
L_IR~4.4 x 10^10 L_sun, and SFR~7.6 M_sun/yr, respectively. We measure the
projected correlation function w(r_p) on scales of r_p=0.06-10 h^-1 Mpc, from
which we derive a best fit comoving correlation length of r_0 = 4.0 +- 0.4 h^-1
Mpc and slope of gamma=1.5 +- 0.1 for the whole f_24>20uJy sample after
combining the two fields. We find indications of a larger correlation length
for objects of higher luminosity, with Luminous Infrared Galaxies (LIRGs,
L_IR>10^11 L_sun) reaching r_0~5.1 h^-1 Mpc. This would imply that galaxies
with larger SFRs are hosted in progressively more massive halos, reaching
minimum halo masses of ~3 x 10^12 M_sun for LIRGs. We compare our measurements
with the predictions from semi-analytic models based on the Millennium
simulation. The variance in the models is used to estimate the errors in our
GOODS clustering measurements, which are dominated by cosmic variance. The
measurements from the two GOODS fields are found to be consistent within the
errors. On scales of the GOODS fields, the real sources appear more strongly
clustered than objects in the Millennium-simulation based catalogs, if the
selection function is applied consistently. This suggests that star formation
at z~0.5-1 is being hosted in more massive halos and denser environments than
currently predicted by galaxy formation models.[truncated]
| astro-ph | we present the first spatial clustering measurements of z1 24umselected star forming galaxies in the great observatories origins deep survey goods the sample under investigation includes 495 objects in goodssouth and 811 objects in goodsnorth selected down to flux densities of f_2420 ujy and z_ab235 mag for which spectroscopic redshifts are available the median redshift ir luminosity and star formation rate sfr of the samples are z08 l_ir44 x 1010 l_sun and sfr76 m_sunyr respectively we measure the projected correlation function wr_p on scales of r_p00610 h1 mpc from which we derive a best fit comoving correlation length of r_0 40 04 h1 mpc and slope of gamma15 01 for the whole f_2420ujy sample after combining the two fields we find indications of a larger correlation length for objects of higher luminosity with luminous infrared galaxies lirgs l_ir1011 l_sun reaching r_051 h1 mpc this would imply that galaxies with larger sfrs are hosted in progressively more massive halos reaching minimum halo masses of 3 x 1012 m_sun for lirgs we compare our measurements with the predictions from semianalytic models based on the millennium simulation the variance in the models is used to estimate the errors in our goods clustering measurements which are dominated by cosmic variance the measurements from the two goods fields are found to be consistent within the errors on scales of the goods fields the real sources appear more strongly clustered than objects in the millenniumsimulation based catalogs if the selection function is applied consistently this suggests that star formation at z051 is being hosted in more massive halos and denser environments than currently predicted by galaxy formation modelstruncated | [['we', 'present', 'the', 'first', 'spatial', 'clustering', 'measurements', 'of', 'z1', '24umselected', 'star', 'forming', 'galaxies', 'in', 'the', 'great', 'observatories', 'origins', 'deep', 'survey', 'goods', 'the', 'sample', 'under', 'investigation', 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'selection', 'function', 'is', 'applied', 'consistently', 'this', 'suggests', 'that', 'star', 'formation', 'at', 'z051', 'is', 'being', 'hosted', 'in', 'more', 'massive', 'halos', 'and', 'denser', 'environments', 'than', 'currently', 'predicted', 'by', 'galaxy', 'formation', 'modelstruncated']] | [-0.05711987492019318, 0.09168047059111353, -0.06630591211659911, 0.14523854489684346, -0.05687350606963662, -0.013703270361602958, 0.030916531359557305, 0.4568833493487732, -0.08858492602806665, -0.36201199257087685, 0.07106144986152578, -0.3338289804784971, 0.016540471066680062, 0.2048662336016982, 0.0034262499313433246, -0.04729954158810247, 0.007906935761147975, -0.09747454016239245, -0.06085152511378465, -0.3545629856311238, 0.29328023454443525, 0.06551743172073272, 0.22663432885379223, -0.07935423223136219, 0.10021190829805236, -0.08226119726365114, -0.10414979135384783, -0.012500257172866127, -0.192426049535018, 0.042112818700456175, 0.2634147286716153, 0.11981660726049936, 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708.2797 | Investigating the Relationship Between the Hot Gas and the Dark Matter
Components of Galaxy Clusters | Various differences in galaxy cluster properties derived from X-ray and weak
lensing observations have been highlighted in the literature. One such
difference is the observation of mass concentrations in lensing maps which have
no X-ray counterparts (e.g. Jee, White, Ford et al. 2005). We investigate this
issue by identifying substructures in maps of projected total mass (analogous
to weak lensing mass reconstructions) and maps of projected X-ray surface
brightness for three simulated clusters. We then compare the 2D mass
substructures with both 3D subhalo data and the 2D X-ray substructures. Here we
present preliminary results from the first comparison, where we have assessed
the impact of projecting the data on subhalo identification.
| astro-ph | various differences in galaxy cluster properties derived from xray and weak lensing observations have been highlighted in the literature one such difference is the observation of mass concentrations in lensing maps which have no xray counterparts eg jee white ford et al 2005 we investigate this issue by identifying substructures in maps of projected total mass analogous to weak lensing mass reconstructions and maps of projected xray surface brightness for three simulated clusters we then compare the 2d mass substructures with both 3d subhalo data and the 2d xray substructures here we present preliminary results from the first comparison where we have assessed the impact of projecting the data on subhalo identification | [['various', 'differences', 'in', 'galaxy', 'cluster', 'properties', 'derived', 'from', 'xray', 'and', 'weak', 'lensing', 'observations', 'have', 'been', 'highlighted', 'in', 'the', 'literature', 'one', 'such', 'difference', 'is', 'the', 'observation', 'of', 'mass', 'concentrations', 'in', 'lensing', 'maps', 'which', 'have', 'no', 'xray', 'counterparts', 'eg', 'jee', 'white', 'ford', 'et', 'al', '2005', 'we', 'investigate', 'this', 'issue', 'by', 'identifying', 'substructures', 'in', 'maps', 'of', 'projected', 'total', 'mass', 'analogous', 'to', 'weak', 'lensing', 'mass', 'reconstructions', 'and', 'maps', 'of', 'projected', 'xray', 'surface', 'brightness', 'for', 'three', 'simulated', 'clusters', 'we', 'then', 'compare', 'the', '2d', 'mass', 'substructures', 'with', 'both', '3d', 'subhalo', 'data', 'and', 'the', '2d', 'xray', 'substructures', 'here', 'we', 'present', 'preliminary', 'results', 'from', 'the', 'first', 'comparison', 'where', 'we', 'have', 'assessed', 'the', 'impact', 'of', 'projecting', 'the', 'data', 'on', 'subhalo', 'identification']] | [-0.04602480768309241, 0.027714363661029244, -0.08266770165729602, 0.12937976970403856, -0.058602346121915616, 0.004698179570758449, 0.01508721693244297, 0.43618426664865445, -0.18209139720836123, -0.38324716560808675, 0.08529265538839224, -0.35121940942813773, -0.11013602892801698, 0.21497111970425717, -0.022098060173448175, 0.06936373321721996, 0.08475998694484588, -0.09441551201546515, -0.11247536156692409, -0.2839461885648364, 0.34869444279943956, 0.05240754202947885, 0.209674095639327, -0.015546069339117301, 0.08150620671741697, -0.01942800158524603, -0.14521905951551162, 0.0643508524434375, -0.17634752219393185, 0.04454690884293606, 0.19658349332998373, 0.12897637571378645, 0.18070921059032635, -0.36557153382870766, -0.2285106997587718, 0.07798624655697495, 0.1269722982400968, 0.07773099267069483, -0.1450872213598424, -0.33128367176478996, 0.07726199352951621, -0.1643449814385219, -0.09831991679883297, 0.008576062208573734, 0.03558541683014482, 0.06669228672814954, -0.17478908603412233, 0.18091665042915597, 0.004263695273298903, 0.05863951367791742, -0.11692865248603214, -0.10808990043421675, -0.07063442909046509, 0.11433586257771822, 0.011188199209365328, 0.038649623473507484, 0.15276902242580295, -0.12970879625520734, -0.06635351671762432, 0.3754956131914306, -0.044349043440888636, -0.08140496372964533, 0.22351934731912998, -0.17977679788808537, -0.24168904871995828, 0.07455448616695191, 0.17680430539517797, 0.06250347479570857, -0.18241487668793915, 0.05092199306246974, -0.07955762841447722, 0.19595429062610492, 0.10564410253261615, 0.017399751915036177, 0.2774762571623017, 0.10299475923030903, 0.040580275898849195, 0.11323271877024256, -0.2570383108437194, 0.0025961374189396986, -0.16702986274114145, -0.08684522727032475, -0.166884434135032, 0.01948582469153085, -0.08058785946780388, -0.13124556291898312, 0.3604505681931706, 0.159092703526507, 0.252653756212177, 0.04339016234007431, 0.3146061383200244, 0.07644919491057019, 0.052154328723970265, 0.04516310140856409, 0.3052457827475986, 0.17728637642202166, 0.038230872982239816, -0.21579781384623078, 0.008921753178583458, 0.023165556841247183] |
708.2798 | Inflection Point Inflation and Time Dependent Potentials in String
Theory | We consider models of inflection point inflation. The main drawback of such
models is that they suffer from the overshoot problem. Namely the initial
condition should be fine tuned to be near the inflection point for the universe
to inflate. We show that stringy realizations of inflection point inflation are
common and offer a natural resolution to the overshoot problem.
| hep-th astro-ph.CO hep-ph | we consider models of inflection point inflation the main drawback of such models is that they suffer from the overshoot problem namely the initial condition should be fine tuned to be near the inflection point for the universe to inflate we show that stringy realizations of inflection point inflation are common and offer a natural resolution to the overshoot problem | [['we', 'consider', 'models', 'of', 'inflection', 'point', 'inflation', 'the', 'main', 'drawback', 'of', 'such', 'models', 'is', 'that', 'they', 'suffer', 'from', 'the', 'overshoot', 'problem', 'namely', 'the', 'initial', 'condition', 'should', 'be', 'fine', 'tuned', 'to', 'be', 'near', 'the', 'inflection', 'point', 'for', 'the', 'universe', 'to', 'inflate', 'we', 'show', 'that', 'stringy', 'realizations', 'of', 'inflection', 'point', 'inflation', 'are', 'common', 'and', 'offer', 'a', 'natural', 'resolution', 'to', 'the', 'overshoot', 'problem']] | [-0.10170416906476021, 0.12722228266453992, -0.13886617856721084, 0.135392818749339, -0.09568070170159142, -0.17292446983822932, 0.029003068959961336, 0.37189403201142945, -0.3411439452941219, -0.27889261251936354, 0.1589725617164125, -0.24665554659441113, -0.1345465324508647, 0.1637242000317201, -0.13326610622461885, 0.04311733179104825, 0.08209889250186582, 0.01083057108335197, -0.04171415434102528, -0.21594533709576352, 0.3786199760623276, 0.06313426708608555, 0.23605916736026605, 0.02871553556372722, 0.10186223424971104, -0.14073928273282946, 0.0742180502275005, 0.0026153055640558403, -0.1457990028441903, 0.047233612831526745, 0.21689257405002232, 0.14263613137106101, 0.24302833148588737, -0.4072120470615725, -0.2712660256307572, 0.21034138051327317, 0.12501727315442016, 0.16576698729768397, -0.0253592859643201, -0.19692855842101079, 0.1540371514041908, -0.051075883498803404, -0.1763157108798623, -0.027452212494487562, -0.05159056518071641, -0.01456544796625773, -0.2831895275895173, 0.07027852615962425, 0.04382861229435851, 0.03689040055808922, -0.0410539482642586, -0.0988796811318025, -0.05254999347962439, 0.08492015084096541, 0.09824489042512141, 0.024411190192525585, 0.14995498112402855, -0.18274126613784272, -0.07945760137711962, 0.42823387011885644, -0.08031165205563108, -0.12627445766702294, 0.13769880297283332, -0.08743726688747605, -0.13126096815491717, 0.09005084993550554, 0.1415682100923732, 0.0781149406141291, -0.0490228447287033, 0.08649121474688097, 0.01525646760322464, 0.10154219056663957, 0.13364194671157748, -0.005141021435459455, 0.3402169210836291, 0.1551559458176295, 0.07328576514264569, 0.11435201794217088, -0.10216725095330427, -0.13555404671933502, -0.3781681005687763, -0.08788342960954955, -0.15673224112639825, 0.05811459260294214, -0.10390658176014161, -0.21860817421693354, 0.3750082974632581, 0.24645966989919543, 0.2800679543443645, 0.013488611485809088, 0.2503464415979882, 0.1624165659615149, 0.04650231879204512, 0.06939170581754298, 0.26691462531064947, 0.0030396245187148453, 0.09253666319418699, -0.19024595936837915, 0.008984771285516521, 0.04551042380432288] |
708.2799 | A three-qubit interpretation of BPS and non-BPS STU black holes | Following the recent trend we develop further the black hole analogy between
quantum information theory and the theory of extremal stringy black hole
solutions. We show that the three-qubit interpretation of supersymmetric black
hole solutions in the STU model can be extended also to include
non-supersymmetric ones. First we show that the black hole potential can be
expressed as one half the norm of a suitably chosen three-qubit entangled state
containing the quantized charges and the moduli. The extremization of the black
hole potential in terms of this entangled state amounts to either supressing
bit flip errors (BPS-case) or allowing very special types of flips transforming
the states between different classes of non-BPS solutions. We are illustrating
our results for the example of the D2-D6 system. In this case the bit flip
errors are corresponding to sign flip errors of the charges originating from
the number of D2 branes. After moduli stabilization the states depending
entirely on the charges are maximally entangled graph states (of the triangle
graph) well-known from quantum information theory. An N=8 interpretation of the
STU-model in terms of a mixed state with fermionic purifications is also given.
| hep-th astro-ph quant-ph | following the recent trend we develop further the black hole analogy between quantum information theory and the theory of extremal stringy black hole solutions we show that the threequbit interpretation of supersymmetric black hole solutions in the stu model can be extended also to include nonsupersymmetric ones first we show that the black hole potential can be expressed as one half the norm of a suitably chosen threequbit entangled state containing the quantized charges and the moduli the extremization of the black hole potential in terms of this entangled state amounts to either supressing bit flip errors bpscase or allowing very special types of flips transforming the states between different classes of nonbps solutions we are illustrating our results for the example of the d2d6 system in this case the bit flip errors are corresponding to sign flip errors of the charges originating from the number of d2 branes after moduli stabilization the states depending entirely on the charges are maximally entangled graph states of the triangle graph wellknown from quantum information theory an n8 interpretation of the stumodel in terms of a mixed state with fermionic purifications is also given | [['following', 'the', 'recent', 'trend', 'we', 'develop', 'further', 'the', 'black', 'hole', 'analogy', 'between', 'quantum', 'information', 'theory', 'and', 'the', 'theory', 'of', 'extremal', 'stringy', 'black', 'hole', 'solutions', 'we', 'show', 'that', 'the', 'threequbit', 'interpretation', 'of', 'supersymmetric', 'black', 'hole', 'solutions', 'in', 'the', 'stu', 'model', 'can', 'be', 'extended', 'also', 'to', 'include', 'nonsupersymmetric', 'ones', 'first', 'we', 'show', 'that', 'the', 'black', 'hole', 'potential', 'can', 'be', 'expressed', 'as', 'one', 'half', 'the', 'norm', 'of', 'a', 'suitably', 'chosen', 'threequbit', 'entangled', 'state', 'containing', 'the', 'quantized', 'charges', 'and', 'the', 'moduli', 'the', 'extremization', 'of', 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708.28 | Synchrotron Self-Absorption Process in GRBs and the Isotropic Energy -
Peak Energy Fundamental Relation | The existence of strong correlation between the peak luminosity (and/or
bolometric energetics) of Gamma Ray Bursts (GRB) is one of the most intrigue
problem of GRB physics. This correlation is not yet understood. Here we
demonstrate that this correlation can be explained in framework of synchrotron
self-absorption (SSA) mechanism of GRB prompt emission. We estimate the
magnetic field strength of the central engine at the level $B\sim 10^{14}
(10^3/\Gamma)^3 (1+z)^2$, where $\Gamma$ is the Lorentz factor of fireball.
| astro-ph | the existence of strong correlation between the peak luminosity andor bolometric energetics of gamma ray bursts grb is one of the most intrigue problem of grb physics this correlation is not yet understood here we demonstrate that this correlation can be explained in framework of synchrotron selfabsorption ssa mechanism of grb prompt emission we estimate the magnetic field strength of the central engine at the level bsim 1014 103gamma3 1z2 where gamma is the lorentz factor of fireball | [['the', 'existence', 'of', 'strong', 'correlation', 'between', 'the', 'peak', 'luminosity', 'andor', 'bolometric', 'energetics', 'of', 'gamma', 'ray', 'bursts', 'grb', 'is', 'one', 'of', 'the', 'most', 'intrigue', 'problem', 'of', 'grb', 'physics', 'this', 'correlation', 'is', 'not', 'yet', 'understood', 'here', 'we', 'demonstrate', 'that', 'this', 'correlation', 'can', 'be', 'explained', 'in', 'framework', 'of', 'synchrotron', 'selfabsorption', 'ssa', 'mechanism', 'of', 'grb', 'prompt', 'emission', 'we', 'estimate', 'the', 'magnetic', 'field', 'strength', 'of', 'the', 'central', 'engine', 'at', 'the', 'level', 'bsim', '1014', '103gamma3', '1z2', 'where', 'gamma', 'is', 'the', 'lorentz', 'factor', 'of', 'fireball']] | [-0.08692384096975257, 0.1590673577988387, -0.06296489959244024, 0.22227489593432756, -0.09956348599720892, -0.06850431221476816, 0.02243149048322207, 0.47565226147991496, -0.22026206938362403, -0.2958183642960601, -0.02916119110546764, -0.2860270734247449, 0.003183264057786966, 0.22460774002617903, 0.05929847740169082, -0.06271027459599707, -0.0076526405483290745, -0.0596368709433969, -0.04635512194741372, -0.1449391577156962, 0.29083277717801176, 0.145420107458319, 0.2362785857331836, 0.11476131772936939, 0.051151392116610496, -0.048926686656407335, -0.01276422390871524, -0.03139069338341231, -0.06606672474460196, 0.02259826876507322, 0.21494082056663252, 0.1282091450321113, 0.20346171827608864, -0.36215248295142277, -0.22508487549108488, 0.13309730464810288, 0.12797669708341747, -0.02840425358940061, -0.025290879292425687, -0.22262811997010337, 0.04737849311008082, -0.22713662439642787, -0.15396607707121543, 0.07639441680913041, 0.031874962829887964, 0.01334843094545332, -0.22467648178072913, 0.17383682317789886, 0.05006698706314306, 0.049440479407982005, -0.05024160622987993, 0.02297757277507093, 0.018577394468782395, 0.034975596183499734, 0.12039806558780808, 0.11446162054576765, 0.19628609103670755, -0.17212150782322536, -0.0845962199783134, 0.4339115225843021, -0.04075932703525215, 0.0198513792779345, 0.14386603317840338, -0.2742509333561961, -0.20130772431465713, 0.18370511145754295, 0.13199036360367553, 0.07295354363408738, -0.1890231604724155, 0.03285293515723247, -0.018514383922923695, 0.19437054278595106, -0.006948081147554633, 0.05574121117567668, 0.2565101785464333, 0.1684650657577561, -0.019166063819709537, 0.09340695817440797, -0.20301744704400854, 0.0615631498444777, -0.37084457568534007, -0.0967478219951902, -0.19233999633556836, 0.1711612525972456, -0.1384620533820677, -0.11580507789266767, 0.41742163963688467, 0.11211400345427455, 0.17043949869255742, 0.029694171495396982, 0.2454161097283487, 0.15811863577888383, 0.06097554548510483, 0.10708824387908757, 0.3736145848517197, 0.13862057636165387, 0.0736750355716069, -0.27381972638986907, 0.13046260059557177, 0.06114608851902477] |
708.2801 | Simple proof of a useful pointwise estimate for the wave equation | We give a simple proof of a pointwise decay estimate in 3+1 dimensions stated
in two versions, making advantage of a particular simplicity of inverting the
spherically symmetric part of the wave operator and of the comparison theorem.
We briefly explain the role of this estimate in proving decay estimates for
nonlinear wave equations or wave equations with potential terms.
| math-ph math.MP | we give a simple proof of a pointwise decay estimate in 31 dimensions stated in two versions making advantage of a particular simplicity of inverting the spherically symmetric part of the wave operator and of the comparison theorem we briefly explain the role of this estimate in proving decay estimates for nonlinear wave equations or wave equations with potential terms | [['we', 'give', 'a', 'simple', 'proof', 'of', 'a', 'pointwise', 'decay', 'estimate', 'in', '31', 'dimensions', 'stated', 'in', 'two', 'versions', 'making', 'advantage', 'of', 'a', 'particular', 'simplicity', 'of', 'inverting', 'the', 'spherically', 'symmetric', 'part', 'of', 'the', 'wave', 'operator', 'and', 'of', 'the', 'comparison', 'theorem', 'we', 'briefly', 'explain', 'the', 'role', 'of', 'this', 'estimate', 'in', 'proving', 'decay', 'estimates', 'for', 'nonlinear', 'wave', 'equations', 'or', 'wave', 'equations', 'with', 'potential', 'terms']] | [-0.11792916790582239, 0.04930218858644366, -0.07703175360026458, 0.11627695809778137, -0.07936799214221538, -0.08465130568947643, -0.01803035258005063, 0.26662260852754116, -0.20707380004848044, -0.22769255588452023, 0.15028140614158475, -0.24032415105029942, -0.1645136281750941, 0.19253707963895675, -0.010184691147878766, 0.021715961489826442, 0.06294919477465252, 0.024094242012749116, -0.1438526016349594, -0.20257582735891144, 0.3560487040008108, -0.02863257476128638, 0.20341013661430526, 0.08177536323200911, 0.12314305847200255, 0.04432254158212648, -0.0856041823203365, -0.02642104746773839, -0.14731960146067044, 0.12941136847560605, 0.2073831723537296, 0.08540594602624575, 0.27521717809140683, -0.4264706502358119, -0.17465690233899903, 0.13155160997994245, 0.1574316085500565, 0.12916325780097396, -0.08036274653083335, -0.2985901754970352, 0.04822993333800696, -0.17780967480891074, -0.25029912441968916, -0.05068973588446776, 0.026911796629428865, 0.04670828226953745, -0.2904294580221176, 0.1107065402873559, 0.12460129279643298, 0.031039692694321275, -0.13084988253152308, -0.09159986856393516, 0.04155184441866974, 0.04424991753573219, 0.07985576712526381, -0.013358903024345637, 0.04395495077284674, -0.12025722871767357, -0.10174423921077201, 0.35779888030762474, -0.10089801417198033, -0.2589398680565258, 0.12133874396483103, -0.14397869200911373, -0.11253997570214172, 0.08853369196876884, 0.17005106415599586, 0.11374925083170334, -0.14092721791627508, 0.110954390791206, -0.026966294110025046, 0.12842342549120075, 0.13870281931788972, 0.06764947110787034, 0.13192523109416168, 0.12997874964882308, 0.056098782115926345, 0.1493018103763461, -0.022739396252048513, -0.11247733316073814, -0.3792119591186444, -0.2125874720979482, -0.14944444507515678, 0.09392008112651334, -0.11053937425191786, -0.1903447856505712, 0.43505973344047866, 0.12420923296206941, 0.14801704265022028, 0.10208118669688701, 0.2676393049225832, 0.20861589134049913, -0.011110535155360897, 0.07320899243932218, 0.27563472863597177, 0.23461895594373344, 0.0954702889546752, -0.16563163994190594, 0.015362007201959689, 0.16115824261990686] |
708.2802 | Plasma induced neutrino spin-flip in a supernova and new bounds on the
neutrino magnetic moment | The neutrino chirality-flip process under the conditions of the supernova
core is investigated in detail with the plasma polarization effects in the
photon propagator taken into account in a more complete form than in earlier
publications. It is shown in part that the contribution of the proton fraction
of plasma is essential. New upper bounds on the neutrino magnetic moment are
obtained: mu_nu < (0.5 - 1.1) 10^{-12} mu_B from the limit on the supernova
core luminosity for nu_R emission, and mu_nu < (0.4 - 0.6) 10^{-12} mu_B from
the limit on the averaged time of the left-handed neutrino washing out. The
best upper bound on the neutrino magnetic moment from SN1987A is improved by
the factor of 3 to 7.
| hep-ph | the neutrino chiralityflip process under the conditions of the supernova core is investigated in detail with the plasma polarization effects in the photon propagator taken into account in a more complete form than in earlier publications it is shown in part that the contribution of the proton fraction of plasma is essential new upper bounds on the neutrino magnetic moment are obtained mu_nu 05 11 1012 mu_b from the limit on the supernova core luminosity for nu_r emission and mu_nu 04 06 1012 mu_b from the limit on the averaged time of the lefthanded neutrino washing out the best upper bound on the neutrino magnetic moment from sn1987a is improved by the factor of 3 to 7 | [['the', 'neutrino', 'chiralityflip', 'process', 'under', 'the', 'conditions', 'of', 'the', 'supernova', 'core', 'is', 'investigated', 'in', 'detail', 'with', 'the', 'plasma', 'polarization', 'effects', 'in', 'the', 'photon', 'propagator', 'taken', 'into', 'account', 'in', 'a', 'more', 'complete', 'form', 'than', 'in', 'earlier', 'publications', 'it', 'is', 'shown', 'in', 'part', 'that', 'the', 'contribution', 'of', 'the', 'proton', 'fraction', 'of', 'plasma', 'is', 'essential', 'new', 'upper', 'bounds', 'on', 'the', 'neutrino', 'magnetic', 'moment', 'are', 'obtained', 'mu_nu', '05', '11', '1012', 'mu_b', 'from', 'the', 'limit', 'on', 'the', 'supernova', 'core', 'luminosity', 'for', 'nu_r', 'emission', 'and', 'mu_nu', '04', '06', '1012', 'mu_b', 'from', 'the', 'limit', 'on', 'the', 'averaged', 'time', 'of', 'the', 'lefthanded', 'neutrino', 'washing', 'out', 'the', 'best', 'upper', 'bound', 'on', 'the', 'neutrino', 'magnetic', 'moment', 'from', 'sn1987a', 'is', 'improved', 'by', 'the', 'factor', 'of', '3', 'to', '7']] | [-0.05787748371601168, 0.20627990335178298, -0.005748920775472353, 0.14241063611392685, -0.018478829379822325, -0.0076184543819787605, 0.08580537350613497, 0.3348838289419555, -0.14643541686077657, -0.3435503824208027, 0.06483138418203203, -0.3135484803117748, 0.023554100026177544, 0.2247559778774396, 0.0649453760522744, -0.03390774249276306, 0.042278476061426803, 0.032770118666175976, -0.062285801477364115, -0.2486304482843122, 0.2770539597552429, 0.08982082037653169, 0.24658373120622948, 0.11064609665270402, 0.07246169878934057, -0.06911930377131455, -0.029497923663793467, -0.07458396456562556, -0.11124684537456692, 0.02367916309999095, 0.1371047886073068, 0.074494555256226, 0.14007873591990808, -0.41689941506737316, -0.14112899652144945, 0.08602553985726374, 0.14690817420124117, 0.028466378966481704, -0.02387432140981257, -0.28081565534966624, 0.05557135069488078, -0.1655410875956345, -0.12858106275128886, 0.04482872440264775, 0.02969386122929744, -0.028537115798546717, -0.30603388510644436, 0.12584971422409144, 0.03756491914610418, 0.014352609916355334, -0.08428414516214632, -0.22101277537229988, -0.0067802621131269345, 0.034252343790876306, 0.09286898154836012, 0.09018301861917871, 0.15067486518887757, -0.13150618385531518, -0.01171670570714861, 0.409232347089256, -0.09384420030796602, -0.0896588990635947, 0.08020921799147294, -0.24116299766350666, -0.12845093496621418, 0.20897595625784662, 0.13576994020428157, 0.07433971409232189, -0.16775524980810463, 0.09473826553877522, -0.04183563351647085, 0.17560099255150327, 0.06125804389882673, 0.006216080045018098, 0.2525401203296123, 0.19402211520056695, 0.08463191501318644, 0.07115768581732279, -0.1636144259236116, -0.02426673830725635, -0.31764077115007955, -0.07691968427264553, -0.1434145498996935, 0.1360697453089345, -0.13472362991378137, -0.07832754706604701, 0.37635682315295005, 0.1428426351223109, 0.17364532037729669, -0.023901607412407096, 0.28382855349291974, 0.12991300821712273, 0.07778619462226191, 0.08089205211139897, 0.3311401000007605, 0.20159920992958558, 0.13991556031545863, -0.23799205471315762, 0.03372657405308042, 0.07412771903312741] |
708.2803 | The Lorentz Integral Transform (LIT) method and its applications to
perturbation induced reactions | The LIT method has allowed ab initio calculations of electroweak cross
sections in light nuclear systems. This review presents a description of the
method from both a general and a more technical point of view, as well as a
summary of the results obtained by its application. The remarkable features of
the LIT approach, which make it particularly efficient in dealing with a
general reaction involving continuum states, are underlined. Emphasis is given
on the results obtained for electroweak cross sections of few--nucleon systems.
Their implications for the present understanding of microscopic nuclear
dynamics are discussed.
| nucl-th | the lit method has allowed ab initio calculations of electroweak cross sections in light nuclear systems this review presents a description of the method from both a general and a more technical point of view as well as a summary of the results obtained by its application the remarkable features of the lit approach which make it particularly efficient in dealing with a general reaction involving continuum states are underlined emphasis is given on the results obtained for electroweak cross sections of fewnucleon systems their implications for the present understanding of microscopic nuclear dynamics are discussed | [['the', 'lit', 'method', 'has', 'allowed', 'ab', 'initio', 'calculations', 'of', 'electroweak', 'cross', 'sections', 'in', 'light', 'nuclear', 'systems', 'this', 'review', 'presents', 'a', 'description', 'of', 'the', 'method', 'from', 'both', 'a', 'general', 'and', 'a', 'more', 'technical', 'point', 'of', 'view', 'as', 'well', 'as', 'a', 'summary', 'of', 'the', 'results', 'obtained', 'by', 'its', 'application', 'the', 'remarkable', 'features', 'of', 'the', 'lit', 'approach', 'which', 'make', 'it', 'particularly', 'efficient', 'in', 'dealing', 'with', 'a', 'general', 'reaction', 'involving', 'continuum', 'states', 'are', 'underlined', 'emphasis', 'is', 'given', 'on', 'the', 'results', 'obtained', 'for', 'electroweak', 'cross', 'sections', 'of', 'fewnucleon', 'systems', 'their', 'implications', 'for', 'the', 'present', 'understanding', 'of', 'microscopic', 'nuclear', 'dynamics', 'are', 'discussed']] | [-0.07031805667187048, 0.07294523634724707, -0.1208355039249606, 0.09956326847410917, -0.012306682649068534, -0.10064926189564478, 0.03159224938281113, 0.3563991301925853, -0.19239516938008214, -0.2722220301899749, 0.06632382948252295, -0.274249581474578, -0.14366570408067977, 0.24688695492174398, 0.02809926914051175, 0.08171907280181283, 0.09966386617937435, 0.050550705952142984, -0.08560697831368695, -0.184782271074558, 0.32174629881531774, 0.08017597110908052, 0.2190122330915377, 0.12932709632150363, 0.07005280252875916, 0.04859453250295095, -0.10522443041554652, 0.013095748028717935, -0.1143964544753544, 0.1875164233661053, 0.2849984037845085, 0.09191359912802, 0.21502406883519143, -0.43518532880504307, -0.20618554636409195, 0.01850338006624952, 0.07767064905298564, 0.16997941495477184, -0.10642780236427522, -0.30288433163271594, 0.03922948806818264, -0.16471812980792797, -0.15691925801123338, -0.1465886184402431, 0.012705074463156052, 0.02562485619758566, -0.22203942971342863, 0.03121667120528097, 0.021490756341033073, 0.06864588948451456, -0.07797914906526178, -0.18814961528066002, -0.002279628301039338, 0.07646880281875686, 0.050021067244112295, 0.02777091093260727, 0.15439020040503237, -0.17588163492958606, -0.12633496856627366, 0.4749349593766965, -0.0037611096631735563, -0.15446918733626566, 0.16896560054738075, -0.12863483472513812, -0.16345210079452954, 0.14307120291050524, 0.15549845631903736, 0.1437866403721273, -0.17829505305659646, 0.10868723434335455, -0.005175508641211006, 0.12157083098190924, 0.011799203804306066, 0.05598232839474804, 0.18919052680575987, 0.2538356018970565, -0.007272042348631658, 0.08340728578332346, -0.059152816982532386, -0.14013367782657346, -0.365264633030165, -0.12111882731308772, -0.13462281242633858, 0.0589721009406882, -0.024490337998183048, -0.12123259395593777, 0.38090361475284834, 0.12511419534954862, 0.2216662328961926, 0.0018850860033126082, 0.31254674059649307, 0.10311563152208691, 0.017723446277765714, -0.01398592212838897, 0.2707454502039279, 0.18504243205582802, 0.09787332054111175, -0.2032798002983327, 0.057203189052719004, 0.04805513854322877] |
708.2804 | On Fast-Decodable Space-Time Block Codes | We focus on full-rate, fast-decodable space-time block codes (STBCs) for 2x2
and 4x2 multiple-input multiple-output (MIMO) transmission. We first derive
conditions for reduced-complexity maximum-likelihood decoding, and apply them
to a unified analysis of two families of 2x2 STBCs that were recently proposed.
In particular, we describe a reduced-complexity sphere decoding algorithm
suitable for QAM signal constellations. Next, we derive a novel
reduced-complexity 4x2 STBC, and show that it outperforms all previously known
codes with certain constellations.
| cs.IT math.IT | we focus on fullrate fastdecodable spacetime block codes stbcs for 2x2 and 4x2 multipleinput multipleoutput mimo transmission we first derive conditions for reducedcomplexity maximumlikelihood decoding and apply them to a unified analysis of two families of 2x2 stbcs that were recently proposed in particular we describe a reducedcomplexity sphere decoding algorithm suitable for qam signal constellations next we derive a novel reducedcomplexity 4x2 stbc and show that it outperforms all previously known codes with certain constellations | [['we', 'focus', 'on', 'fullrate', 'fastdecodable', 'spacetime', 'block', 'codes', 'stbcs', 'for', '2x2', 'and', '4x2', 'multipleinput', 'multipleoutput', 'mimo', 'transmission', 'we', 'first', 'derive', 'conditions', 'for', 'reducedcomplexity', 'maximumlikelihood', 'decoding', 'and', 'apply', 'them', 'to', 'a', 'unified', 'analysis', 'of', 'two', 'families', 'of', '2x2', 'stbcs', 'that', 'were', 'recently', 'proposed', 'in', 'particular', 'we', 'describe', 'a', 'reducedcomplexity', 'sphere', 'decoding', 'algorithm', 'suitable', 'for', 'qam', 'signal', 'constellations', 'next', 'we', 'derive', 'a', 'novel', 'reducedcomplexity', '4x2', 'stbc', 'and', 'show', 'that', 'it', 'outperforms', 'all', 'previously', 'known', 'codes', 'with', 'certain', 'constellations']] | [-0.29003007586212143, -0.03204420454015857, -0.017750253570020982, 0.0661205063868118, -0.032951558505086916, -0.3406273778834331, 0.03341684281507409, 0.4181050330424975, -0.19852244439167216, -0.20243608276053382, 0.1528080348767904, -0.16826630679057225, -0.33278114270222814, 0.17707037948390567, -0.15122701980688266, 0.13064433244596185, 0.029677327789709364, -0.00017463355815332187, -0.2112529787884437, -0.3530081085811712, 0.2798521205121161, 0.14676604787574002, 0.3279966289839266, -0.11168494761161703, 0.14505708657241867, 0.04483941709010029, -0.01902141681057401, -0.12229009173614414, -0.18242272376301116, 0.03312049512016146, 0.35728487463079783, 0.2763620021226081, 0.13500832837369098, -0.3193268388460733, -0.292053628283994, 0.05248960362606388, 0.2189097239047681, 0.1578701552506046, -0.1001376751519274, -0.2483676280213618, 0.16485345940791854, -0.2627615782824394, 0.04331938084214926, 0.0011259228799884256, -0.11156026008661445, 0.008300687909420384, -0.38759678825245875, -0.037765343495840695, 0.032205577328568324, 0.043458957727508324, -0.056042271531432084, -0.24697666343816213, 0.1441939665911425, 0.08209529935112714, -0.071002314902695, -0.05812538307662563, -0.026195180528846226, 0.05364883588136811, -0.14253351772449127, 0.32127698481475053, -0.010111489627314242, -0.29497982262584727, 0.11170010647957067, -0.08768034668786354, -0.1610187443377646, 0.18878277026631526, 0.32219036825393377, 0.1002326252882516, -0.18175908248552955, 0.058468863825270855, -0.08702519504157336, 0.19587807210260316, 0.15826480704862134, 0.16374376270380853, 0.10976147129947908, 0.14447783294599503, 0.1029552269947568, 0.20204388127221087, -0.1811322313063245, -0.10344433721375505, -0.19274388134822643, -0.15371323226990122, -0.17751664473325945, -0.044852499150070606, -0.1294004413979756, -0.1115576812727867, 0.31782492730570466, 0.11520092561841011, 0.03866809762181028, 0.2193268508233718, 0.338226444810923, 0.022963046096265316, 0.1170140465868539, 0.19710714188649467, 0.1599626108486279, 0.1730541565967111, 0.018536431494315986, -0.1555074758362025, -0.06754259688942081, 0.09641285730819953] |
708.2805 | The public goods game on homogeneous and heterogeneous networks:
investment strategy according to the pool size | We propose an extended public goods interaction model to study the evolution
of cooperation in heterogeneous population. The investors are arranged on the
well known scale-free type network, the Barab\'{a}si-Albert model. Each
investor is supposed to preferentially distribute capital to pools in its
portfolio based on the knowledge of pool sizes. The extent that investors
prefer larger pools is determined by investment strategy denoted by a tunable
parameter $\alpha$, with larger $\alpha$ corresponding to more preference to
larger pools. As comparison, we also study this interaction model on square
lattice, and find that the heterogeneity contacts favors cooperation.
Additionally, the influence of local topology to the game dynamics under
different $\alpha$ strategies are discussed. It is found that the system with
smaller $\alpha$ strategy can perform comparatively better than the larger
$\alpha$ ones.
| q-fin.GN physics.gen-ph physics.soc-ph q-fin.PM | we propose an extended public goods interaction model to study the evolution of cooperation in heterogeneous population the investors are arranged on the well known scalefree type network the barabasialbert model each investor is supposed to preferentially distribute capital to pools in its portfolio based on the knowledge of pool sizes the extent that investors prefer larger pools is determined by investment strategy denoted by a tunable parameter alpha with larger alpha corresponding to more preference to larger pools as comparison we also study this interaction model on square lattice and find that the heterogeneity contacts favors cooperation additionally the influence of local topology to the game dynamics under different alpha strategies are discussed it is found that the system with smaller alpha strategy can perform comparatively better than the larger alpha ones | [['we', 'propose', 'an', 'extended', 'public', 'goods', 'interaction', 'model', 'to', 'study', 'the', 'evolution', 'of', 'cooperation', 'in', 'heterogeneous', 'population', 'the', 'investors', 'are', 'arranged', 'on', 'the', 'well', 'known', 'scalefree', 'type', 'network', 'the', 'barabasialbert', 'model', 'each', 'investor', 'is', 'supposed', 'to', 'preferentially', 'distribute', 'capital', 'to', 'pools', 'in', 'its', 'portfolio', 'based', 'on', 'the', 'knowledge', 'of', 'pool', 'sizes', 'the', 'extent', 'that', 'investors', 'prefer', 'larger', 'pools', 'is', 'determined', 'by', 'investment', 'strategy', 'denoted', 'by', 'a', 'tunable', 'parameter', 'alpha', 'with', 'larger', 'alpha', 'corresponding', 'to', 'more', 'preference', 'to', 'larger', 'pools', 'as', 'comparison', 'we', 'also', 'study', 'this', 'interaction', 'model', 'on', 'square', 'lattice', 'and', 'find', 'that', 'the', 'heterogeneity', 'contacts', 'favors', 'cooperation', 'additionally', 'the', 'influence', 'of', 'local', 'topology', 'to', 'the', 'game', 'dynamics', 'under', 'different', 'alpha', 'strategies', 'are', 'discussed', 'it', 'is', 'found', 'that', 'the', 'system', 'with', 'smaller', 'alpha', 'strategy', 'can', 'perform', 'comparatively', 'better', 'than', 'the', 'larger', 'alpha', 'ones']] | [-0.11244970843934671, 0.12272535466873069, -0.04253171340175519, 0.11911235020944107, -0.08292173882036057, -0.20585113882850437, 0.08333716438067867, 0.43054511106776117, -0.2654850394184932, -0.3078491190112287, 0.05749348987110967, -0.29955792978153867, -0.13116613774441352, 0.09961882563608986, -0.029062082211984166, -0.06781335474084713, 0.012775391168696316, 0.025188411916851214, 0.05657838605505351, -0.2903410647470588, 0.32785940054397944, 0.10037225938780248, 0.32210139531985316, -0.02773816871265986, 0.037363115628074886, -0.02816603982189138, -0.013386936347119342, 0.05689958848069681, -0.17870822039959539, 0.10409826628646736, 0.20575082379207715, 0.08673393531156269, 0.33982651974809797, -0.41359281507705836, -0.1780412709261676, 0.14968356017909132, 0.12221868550124809, 0.053359757328083866, 0.018075532357263575, -0.26680124381249, 0.06947285701657288, -0.21374574903034627, -0.12111261908553149, -0.03898705846693059, 0.030320593390501756, 0.03905991726306344, -0.2975393787066998, 0.03998541784725726, -0.011162524453812469, 0.021186117240388814, -0.059409247980018925, -0.16429142090509458, -0.07343539223249973, 0.15079897336829873, 0.07134550156446412, -0.034557685256004333, 0.16158624044251874, -0.13737092350077415, -0.10990166549283759, 0.3941512167929931, -0.04143705761422932, -0.18758770957815854, 0.16429869618259818, -0.13644278897812828, -0.09702067304038464, 0.12129271757277779, 0.1942509857419514, 0.08560681254497933, -0.14083314813057282, -0.008455818733007865, -0.07277328818616338, 0.22810720965350256, -0.0006680313315718694, 0.004590733549242517, 0.1686389947457141, 0.22694209539436533, 0.14463613650768548, 0.13709758016406873, -0.05351683960551802, -0.1883853249097789, -0.20087750146123476, -0.06433401086509466, -0.1605292627670193, 0.03829330356469504, -0.1444007388202962, -0.1190246375675026, 0.3388500235960784, 0.15265897445772825, 0.1443098758160674, 0.09682830172429856, 0.23480935611489012, 0.052189866379358546, 0.10081625612508646, 0.054229868901543375, 0.2037410257188113, 0.011490479892441877, 0.10317931235662865, -0.21340493300992688, 0.17456256793251723, -0.0009375283025429212] |
708.2806 | Harmonic nets in metric spaces | We investigate harmonic maps from weighted graphs into metric spaces that
locally admit unique centers of gravity, like Alexandrov spaces with upper
curvature bounds. We prove an existence result by constructing an iterative
geometric process that converges to such maps, called harmonic nets for short.
| math.MG | we investigate harmonic maps from weighted graphs into metric spaces that locally admit unique centers of gravity like alexandrov spaces with upper curvature bounds we prove an existence result by constructing an iterative geometric process that converges to such maps called harmonic nets for short | [['we', 'investigate', 'harmonic', 'maps', 'from', 'weighted', 'graphs', 'into', 'metric', 'spaces', 'that', 'locally', 'admit', 'unique', 'centers', 'of', 'gravity', 'like', 'alexandrov', 'spaces', 'with', 'upper', 'curvature', 'bounds', 'we', 'prove', 'an', 'existence', 'result', 'by', 'constructing', 'an', 'iterative', 'geometric', 'process', 'that', 'converges', 'to', 'such', 'maps', 'called', 'harmonic', 'nets', 'for', 'short']] | [-0.11196192665956914, 0.1068846548086084, -0.09101357541771399, 0.1481588478991196, -0.085458628502157, -0.13248922967662413, -0.028279209426707693, 0.4295387858110997, -0.3144154705107212, -0.17333336460093657, 0.12973335449350998, -0.2919613880001836, -0.19926114498327177, 0.22462613781293234, -0.15603818921372295, 0.018283028569486406, 0.067605852894485, 0.02161376571489705, -0.06960797147411439, -0.226241445608644, 0.43334636266032855, 0.0024595255135662028, 0.21530328016314243, 0.057034447129505374, 0.18511612534833452, 0.005213104830020004, 0.006508390988326735, 0.042990983318951397, -0.23549095606593054, 0.15047155378593338, 0.22379009541020625, 0.14049868829444878, 0.24843981909669108, -0.38934338804748325, -0.2075219862163067, 0.2630388632520205, 0.10590551176832783, 0.048663312714132996, -0.050474525765619345, -0.3192460347380903, 0.07988654151558876, -0.033040522121720844, -0.12496275757956836, -0.17561648380942643, -0.009348051570769813, 0.03867185482134421, -0.2518533809317483, -0.006157421589725548, 0.18217001836746932, 0.028918019531475794, -0.12338602698097627, -0.04891635697923549, -0.025820423165957132, 0.0944816648753153, -0.05216363467754693, 0.09375412321339051, 0.06167174251750111, -0.020926052911414042, -0.1743674538926118, 0.3050836994002263, -0.1665498039374749, -0.25352846392326883, 0.09778930321335792, -0.07871442206410897, -0.1836742637782461, 0.11114909865427762, 0.17206072724527782, 0.15287900627590717, -0.10419447579317623, 0.14027322721150187, -0.06201411930119826, 0.09241484238041772, 0.14887131286991967, 0.05433500510536962, 0.16829020501010947, 0.08870238710401787, 0.26631797059542606, 0.2127905837363667, 0.011271434722261296, -0.0775870336090318, -0.30503659842328895, -0.14737927806046275, -0.1742962171168377, 0.1072814403877904, -0.1908448217333191, -0.28921892737918015, 0.2927378522439135, 0.038419743937750654, 0.19175301446682877, 0.2108673441482501, 0.2115816423876418, 0.0890810610105594, 0.0003396287974384096, 0.15820363448518845, 0.18340717080152696, 0.1913201281749126, 0.010983005347144272, -0.04897417220700946, -0.05573463115013308, 0.2741327613385187] |
708.2807 | Energies of B_s meson excited states - a lattice study | This is a follow-up to our earlier work on the energies and radial
distributions of heavy-light mesons. The heavy quark is taken to be static
(infinitely heavy) and the light quark has a mass about that of the strange
quark. We now concentrate on the energies of the excited states with higher
angular momentum and with a radial node. A new improvement is the use of
hypercubic blocking in the time direction.
The calculation is carried out with dynamical fermions on a 16 cubed times 32
lattice with a lattice spacing approximately 0.1 fm generated using a
non-perturbatively improved clover action.
In nature the closest equivalent of this heavy-light system is the B_s meson,
which allows us to compare our lattice calculations to experimental results
(where available) or to give a prediction where the excited states,
particularly P-wave states, should lie. We pay special attention to the
spin-orbit splitting, to see which one of the states (for a given angular
momentum L) has the lower energy. An attempt is made to understand these
results in terms of the Dirac equation.
| hep-lat hep-ph | this is a followup to our earlier work on the energies and radial distributions of heavylight mesons the heavy quark is taken to be static infinitely heavy and the light quark has a mass about that of the strange quark we now concentrate on the energies of the excited states with higher angular momentum and with a radial node a new improvement is the use of hypercubic blocking in the time direction the calculation is carried out with dynamical fermions on a 16 cubed times 32 lattice with a lattice spacing approximately 01 fm generated using a nonperturbatively improved clover action in nature the closest equivalent of this heavylight system is the b_s meson which allows us to compare our lattice calculations to experimental results where available or to give a prediction where the excited states particularly pwave states should lie we pay special attention to the spinorbit splitting to see which one of the states for a given angular momentum l has the lower energy an attempt is made to understand these results in terms of the dirac equation | [['this', 'is', 'a', 'followup', 'to', 'our', 'earlier', 'work', 'on', 'the', 'energies', 'and', 'radial', 'distributions', 'of', 'heavylight', 'mesons', 'the', 'heavy', 'quark', 'is', 'taken', 'to', 'be', 'static', 'infinitely', 'heavy', 'and', 'the', 'light', 'quark', 'has', 'a', 'mass', 'about', 'that', 'of', 'the', 'strange', 'quark', 'we', 'now', 'concentrate', 'on', 'the', 'energies', 'of', 'the', 'excited', 'states', 'with', 'higher', 'angular', 'momentum', 'and', 'with', 'a', 'radial', 'node', 'a', 'new', 'improvement', 'is', 'the', 'use', 'of', 'hypercubic', 'blocking', 'in', 'the', 'time', 'direction', 'the', 'calculation', 'is', 'carried', 'out', 'with', 'dynamical', 'fermions', 'on', 'a', '16', 'cubed', 'times', '32', 'lattice', 'with', 'a', 'lattice', 'spacing', 'approximately', '01', 'fm', 'generated', 'using', 'a', 'nonperturbatively', 'improved', 'clover', 'action', 'in', 'nature', 'the', 'closest', 'equivalent', 'of', 'this', 'heavylight', 'system', 'is', 'the', 'b_s', 'meson', 'which', 'allows', 'us', 'to', 'compare', 'our', 'lattice', 'calculations', 'to', 'experimental', 'results', 'where', 'available', 'or', 'to', 'give', 'a', 'prediction', 'where', 'the', 'excited', 'states', 'particularly', 'pwave', 'states', 'should', 'lie', 'we', 'pay', 'special', 'attention', 'to', 'the', 'spinorbit', 'splitting', 'to', 'see', 'which', 'one', 'of', 'the', 'states', 'for', 'a', 'given', 'angular', 'momentum', 'l', 'has', 'the', 'lower', 'energy', 'an', 'attempt', 'is', 'made', 'to', 'understand', 'these', 'results', 'in', 'terms', 'of', 'the', 'dirac', 'equation']] | [-0.11307650158188254, 0.20940688184224807, -0.1039881880977191, 0.06150727941551142, -0.06805670436264741, -0.10971568610273405, 0.09240830224007368, 0.36789935189816686, -0.1698204909477176, -0.25475264801255737, 0.02908084574737586, -0.3035316234403581, -0.0051488815561040405, 0.12187210370579528, 0.029892549606867963, 0.07203655641319023, 0.0853728161400391, 0.06261058720992878, -0.11120248215609334, -0.2461370749974675, 0.32115599442946, 0.0436706417447163, 0.208848383407005, 0.13268171617528424, 0.04584372607577178, 0.0033355454008819328, -0.0010703619724760454, -0.043856376538881, -0.11364964625895987, 0.11650137771309042, 0.19537246911948183, -0.011212653992697597, 0.20568897414745557, -0.36664651951028243, -0.17262522995782395, 0.07404219252833476, 0.13609078118073134, 0.1456716756064755, -0.015950140410697915, -0.29114320368195573, 0.0809244760486763, -0.18340632100589574, -0.17237663235411876, -0.0886684774653986, 0.032483113827442546, -0.03503754765002264, -0.29922724669385287, 0.04636782759076191, -0.004843460251868237, 0.03029760641863201, -0.044664699676407814, -0.19198654352933064, -0.05981586611338167, 0.08797005099218545, 0.0848275521349731, 0.11107694186115016, 0.0856558775011864, -0.10140306254745357, -0.12105861454555351, 0.44123074473399254, -0.06532970568837805, -0.2246547441308697, 0.16992391009116545, -0.16929387036038357, -0.11651398788413239, 0.11653074116070962, 0.1827553115595947, 0.09952747770067719, -0.14121746961803486, 0.061617009899540186, -0.07927071096556675, 0.18428183786519287, 0.06612826901125825, 0.05734978099353612, 0.2134927187528875, 0.16798653901334748, 0.02706854872457269, 0.10348341321870168, -0.10070298581203031, -0.10967906207596469, -0.28329659431344933, -0.12959441746610942, -0.17410533657659674, 0.10620093265444869, -0.05220557782619532, -0.11828622492030264, 0.42374139839666897, 0.12685071367692824, 0.2393165824469179, 0.005195626700555699, 0.2724687673048013, 0.12119683623960656, 0.09860962077509612, 0.0928850040357146, 0.25667627522359704, 0.16997393233080704, 0.12437273007041465, -0.2713259561453015, -0.051110710045840176, 0.06025695286225528] |
708.2808 | Inclusive Perspectives | I discuss the relation between inclusive and exclusive dynamics suggested by
Bloom-Gilman duality. Duality implies the simultaneous applicability of two
distinct limits, the standard DIS limit of hard inclusive processes taken at
fixed xB and a limit where the hadronic mass is held fixed. I review
experimental evidence for the relevance of the fixed mass limit in inclusive
processes at high xF. Semi-local duality suggests that inclusive and exclusive
processes occur on the same target Fock states. DIS scaling then implies that
the Fock states contributing to hard exclusive processes have a large
transverse size, i.e., that the hard scattering occurs off a single parton
which carries a large fraction of the hadron momentum.
| hep-ph | i discuss the relation between inclusive and exclusive dynamics suggested by bloomgilman duality duality implies the simultaneous applicability of two distinct limits the standard dis limit of hard inclusive processes taken at fixed xb and a limit where the hadronic mass is held fixed i review experimental evidence for the relevance of the fixed mass limit in inclusive processes at high xf semilocal duality suggests that inclusive and exclusive processes occur on the same target fock states dis scaling then implies that the fock states contributing to hard exclusive processes have a large transverse size ie that the hard scattering occurs off a single parton which carries a large fraction of the hadron momentum | [['i', 'discuss', 'the', 'relation', 'between', 'inclusive', 'and', 'exclusive', 'dynamics', 'suggested', 'by', 'bloomgilman', 'duality', 'duality', 'implies', 'the', 'simultaneous', 'applicability', 'of', 'two', 'distinct', 'limits', 'the', 'standard', 'dis', 'limit', 'of', 'hard', 'inclusive', 'processes', 'taken', 'at', 'fixed', 'xb', 'and', 'a', 'limit', 'where', 'the', 'hadronic', 'mass', 'is', 'held', 'fixed', 'i', 'review', 'experimental', 'evidence', 'for', 'the', 'relevance', 'of', 'the', 'fixed', 'mass', 'limit', 'in', 'inclusive', 'processes', 'at', 'high', 'xf', 'semilocal', 'duality', 'suggests', 'that', 'inclusive', 'and', 'exclusive', 'processes', 'occur', 'on', 'the', 'same', 'target', 'fock', 'states', 'dis', 'scaling', 'then', 'implies', 'that', 'the', 'fock', 'states', 'contributing', 'to', 'hard', 'exclusive', 'processes', 'have', 'a', 'large', 'transverse', 'size', 'ie', 'that', 'the', 'hard', 'scattering', 'occurs', 'off', 'a', 'single', 'parton', 'which', 'carries', 'a', 'large', 'fraction', 'of', 'the', 'hadron', 'momentum']] | [-0.08541199619260927, 0.22975065579776766, -0.1340896653485272, 0.1618325472043484, -0.0020175636439633215, -0.11099045732254653, 0.10810203196709617, 0.3217950345817627, -0.22548668469269678, -0.17953858649962695, -0.0092792815861717, -0.30723800749534314, 0.006102237409274829, 0.11316724851106603, 0.054571131617035064, 0.07785660855619139, 0.09179646582669464, -0.024822547651925368, -0.05310463134950975, -0.16942208504565714, 0.35550456379924233, 0.022973820775453197, 0.29642823581959593, 0.14915971051117308, 0.12507175130508186, 0.14292095234748303, -0.06751406779757847, -0.015586847635476212, -0.0786098159038183, 0.056742584613650185, 0.2724539779296161, 0.06334934762491141, 0.15056781639067227, -0.4053938729655847, -0.08125436796986482, 0.11262207916374073, 0.15043391372800166, 0.02509204288862907, -0.034068425354474276, -0.19278418696117833, 0.026458410247996972, -0.2291217647051733, -0.14354270508333125, -0.04269105199266944, 0.05154486257877005, -0.009932058863341808, -0.2891370783102486, 0.09549219492953598, 0.04601852486717817, -0.012854827559765494, -0.012014928435204192, -0.14706390360043498, -0.057215511684485694, 0.0769581938358514, 0.07955619689330393, 0.07728777867496799, 0.1607764870818835, -0.19284873934086869, -0.18463729137326018, 0.34838315458935604, 0.008324091306381058, -0.13659543342369593, 0.21738091112408592, -0.23975480218385264, -0.20785115375142676, 0.16442207605455464, 0.1875298787398558, 0.09393891634158137, -0.1418877950085229, 0.16842471392214575, -0.04234271125230742, 0.1634809053094502, 0.08465922233370836, 0.10101175483463234, 0.20242368963980034, 0.19225557510365257, -0.03643544189215295, 0.07746078181254122, -0.1104908106223631, -0.13236253908345183, -0.39927189869054575, -0.10385592413551517, -0.10915773245505989, 0.12288337895389352, -0.0884430461534832, -0.09721056173000027, 0.27719820805482176, 0.07787020611035507, 0.31720996403805257, 0.02344453008947567, 0.28196199932707505, 0.13291409411651425, 0.05406636384054365, 0.06637620671831987, 0.2885983946749516, 0.16228191924828775, 0.10589435872960869, -0.2180539889755381, 0.04351623206432059, 0.0684542657782961] |
708.2809 | Quantum enhancement of N-photon phase sensitivity by interferometric
addition of down-converted photon pairs to weak coherent light | It is shown that the addition of down-converted photon pairs to coherent
laser light enhances the N-photon phase sensitivity due to the quantum
interference between components of the same total photon number. Since most of
the photons originate from the coherent laser light, this method of obtaining
non-classical N-photon states is much more efficient than methods based
entirely on parametrically down-converted photons. Specifically, it is possible
to achieve an optimal phase sensitivity of about delta phi^2=1/N^(3/2), equal
to the geometric mean of the standard quantum limit and the Heisenberg limit,
when the average number of down-converted photons contributing to the N-photon
state approaches (N/2)^(1/2).
| quant-ph | it is shown that the addition of downconverted photon pairs to coherent laser light enhances the nphoton phase sensitivity due to the quantum interference between components of the same total photon number since most of the photons originate from the coherent laser light this method of obtaining nonclassical nphoton states is much more efficient than methods based entirely on parametrically downconverted photons specifically it is possible to achieve an optimal phase sensitivity of about delta phi21n32 equal to the geometric mean of the standard quantum limit and the heisenberg limit when the average number of downconverted photons contributing to the nphoton state approaches n212 | [['it', 'is', 'shown', 'that', 'the', 'addition', 'of', 'downconverted', 'photon', 'pairs', 'to', 'coherent', 'laser', 'light', 'enhances', 'the', 'nphoton', 'phase', 'sensitivity', 'due', 'to', 'the', 'quantum', 'interference', 'between', 'components', 'of', 'the', 'same', 'total', 'photon', 'number', 'since', 'most', 'of', 'the', 'photons', 'originate', 'from', 'the', 'coherent', 'laser', 'light', 'this', 'method', 'of', 'obtaining', 'nonclassical', 'nphoton', 'states', 'is', 'much', 'more', 'efficient', 'than', 'methods', 'based', 'entirely', 'on', 'parametrically', 'downconverted', 'photons', 'specifically', 'it', 'is', 'possible', 'to', 'achieve', 'an', 'optimal', 'phase', 'sensitivity', 'of', 'about', 'delta', 'phi21n32', 'equal', 'to', 'the', 'geometric', 'mean', 'of', 'the', 'standard', 'quantum', 'limit', 'and', 'the', 'heisenberg', 'limit', 'when', 'the', 'average', 'number', 'of', 'downconverted', 'photons', 'contributing', 'to', 'the', 'nphoton', 'state', 'approaches', 'n212']] | [-0.09100499238538583, 0.252389178508627, -0.08682930757047481, 0.0705193591968708, -0.022707099714361637, -0.1443165790117843, 0.09482579051236649, 0.3713174528505617, -0.2416426783881955, -0.3076180327249673, -0.012649912873138358, -0.3173482841586025, -0.04538416136191814, 0.25606592591327515, -0.026036319196296547, 0.07592193613809904, 0.047903971701354076, 0.03197202784488502, -0.020202483455718324, -0.21548787896403843, 0.3000263758184551, 0.04631315827939334, 0.35391244267845906, 0.02373386550134102, 0.14771833944866813, 0.03093158227653758, 0.006501507212959447, -0.09630879381834304, -0.03253411930496635, 0.13944337755335423, 0.2148303985912172, 0.0801991244271687, 0.2021778245384181, -0.3910290483674667, -0.173267026034012, 0.16822111343928767, 0.1643276983895791, 0.16325156536242627, 0.05593699461922334, -0.29391814283664947, 0.033464471583516855, -0.11485867383121287, -0.10202254717084534, -0.021878048126558657, -0.015806796707357598, -0.02569684478481418, -0.24305456111804374, 0.0542483051144744, 0.04796462984601922, -0.01814829096993775, 0.07049467590144717, -0.05739552212101452, -0.026360879204624776, 0.07484013207389033, 0.02004659223343128, 0.0418714848957341, 0.1501290407664712, -0.1719765685638865, -0.12079363097594961, 0.3670639262073538, -0.06011808334775744, -0.14864222393981497, 0.12804522705083551, -0.15654319244011947, -0.01350402397564748, 0.22100068788152658, 0.12735397873211254, 0.13178212048250784, -0.08600330701647711, 0.0017366919398660438, 0.01580446262310431, 0.27504500524294606, 0.11938036420355433, 0.21541377355444055, 0.1729655101108681, 0.10112293544496653, 0.09238438642502127, 0.17787569978283446, -0.11521459741798203, -0.10672239466961383, -0.29533116450732194, -0.14036707622134714, -0.2234699448019049, 0.0907944517427133, -0.08435431172948633, -0.10657028607132356, 0.41236375536299447, 0.16074129576496418, 0.12025227351114154, -0.004199132045224598, 0.35784740717086977, 0.17946923115444416, 0.03674447890009406, 0.04046997321697259, 0.32504441634326886, 0.20020488156819516, 0.04410083176007549, -0.26298542197531505, 0.008990926842105765, -0.013839074591337477] |
708.281 | Is a soft nuclear equation of state extracted from heavy-ion data
incompatible with pulsar data? | We discuss the recent constraints on the nuclear equation of state from
pulsar mass measurements and from subthreshold production of kaons in heavy-ion
collisions. While recent pulsar data points towards a hard equation of state,
the analysis of the heavy-ion data allows only for soft equations of state. We
resolve the apparent contradiction by considering the different density regimes
probed. We argue that future measurements of global properties of low-mass
pulsars can serve as an excellent cross-check to heavy-ion data.
| astro-ph nucl-th | we discuss the recent constraints on the nuclear equation of state from pulsar mass measurements and from subthreshold production of kaons in heavyion collisions while recent pulsar data points towards a hard equation of state the analysis of the heavyion data allows only for soft equations of state we resolve the apparent contradiction by considering the different density regimes probed we argue that future measurements of global properties of lowmass pulsars can serve as an excellent crosscheck to heavyion data | [['we', 'discuss', 'the', 'recent', 'constraints', 'on', 'the', 'nuclear', 'equation', 'of', 'state', 'from', 'pulsar', 'mass', 'measurements', 'and', 'from', 'subthreshold', 'production', 'of', 'kaons', 'in', 'heavyion', 'collisions', 'while', 'recent', 'pulsar', 'data', 'points', 'towards', 'a', 'hard', 'equation', 'of', 'state', 'the', 'analysis', 'of', 'the', 'heavyion', 'data', 'allows', 'only', 'for', 'soft', 'equations', 'of', 'state', 'we', 'resolve', 'the', 'apparent', 'contradiction', 'by', 'considering', 'the', 'different', 'density', 'regimes', 'probed', 'we', 'argue', 'that', 'future', 'measurements', 'of', 'global', 'properties', 'of', 'lowmass', 'pulsars', 'can', 'serve', 'as', 'an', 'excellent', 'crosscheck', 'to', 'heavyion', 'data']] | [-0.09852848507871385, 0.14844798674621415, -0.1606643754435936, 0.09439982097828761, -0.06983708234911319, -0.07177154996315949, 0.03258553809282603, 0.30895035518333314, -0.23060727202100678, -0.31398496588808483, 0.049815674206183755, -0.34843543634360685, 0.03867689108010382, 0.2210161649156362, 0.03118245578450569, 0.10851685025845655, 0.15159307171124964, -0.013175823778146878, -0.07968005623260979, -0.1346943190870661, 0.3453756302129477, 0.09649001947545913, 0.21639346895972267, 0.09583336398936808, 0.10028530506388052, 0.016767602268373594, -0.023873557280603565, 0.006120489712338894, -0.13934467103690623, 0.04125940401900152, 0.2915854175575078, 0.12961716652789618, 0.15124092595942784, -0.47895418126136063, -0.21318491380261548, 0.10443043072591536, 0.15780103970319032, 0.12196442144631874, -0.07847663418651792, -0.31022645959164946, 0.044868115215649595, -0.21581856606062502, -0.1879967917513568, -0.0844911462336313, -0.007294584152987227, 0.05856509790683049, -0.232979063433595, 0.14465487122215565, -0.008366697895689867, 0.007574672743794508, -0.12405014688629308, -0.13616128544090317, -0.016259428893681614, 0.0520669269899372, 0.09039536175259855, 0.05499482125742361, 0.14179554359870963, -0.2151385583812953, -0.13840017918264494, 0.3647762662731111, -0.038526289083529265, -0.06565441925195045, 0.17392051953356713, -0.19937907405546867, -0.19604660576442257, 0.08780025839223526, 0.19912232792703435, 0.10949947136105039, -0.19185025234473868, 0.02509611399655114, -0.03384645540063502, 0.19622895067732316, 0.016514870326500387, 0.07002867946284823, 0.25909095590468495, 0.19768324635369935, -0.0049430702405516055, 0.10495048053562642, -0.14128694818136864, -0.061541797668905926, -0.315988476597704, -0.07519777207635343, -0.14223216135360417, 0.07480272856919327, -0.10454591166908359, -0.03636743723182008, 0.3602621091180481, 0.1571240865450818, 0.24665734728805547, -0.03830847821081988, 0.3051549115567468, 0.10979024372791173, -0.003091115498682484, 0.07916033373912797, 0.3200957251596265, 0.16564736594737042, 0.1714399175805738, -0.2687687691184692, 0.07905504437803756, -0.021257600965327583] |
708.2811 | Engineering of arbitrary U(N) transformations by quantum Householder
reflections | We propose a simple physical implementation of the quantum Householder
reflection (QHR) M(v)=I-2|v><v| in a quantum system of N degenerate states
(forming a qunit) coupled simultaneously to an ancillary (excited) state by N
resonant or nearly resonant pulsed external fields. We also introduce the
generalized QHR M(v;k)=I+(exp{ik}-1)|v><v|, which can be produced in the same
N-pod system when the fields are appropriately detuned from resonance with the
excited state. We use these two operators as building blocks in constructing
arbitrary preselected unitary transformations. We show that the most general
U(N) transformation can be factorized (and thereby produced) by either N-1
standard QHRs and an N-dimensional phase gate, or N-1 generalized QHRs and a
one-dimensional phase gate. Viewed mathematically, these QHR factorizations
provide parametrizations of the U(N) group. As an example, we propose a recipe
for constructing the quantum Fourier transform (QFT) by at most N interaction
steps. For example, QFT requires a single QHR for N=2, and only two QHRs for
N=3 and 4.
| quant-ph | we propose a simple physical implementation of the quantum householder reflection qhr mvi2vv in a quantum system of n degenerate states forming a qunit coupled simultaneously to an ancillary excited state by n resonant or nearly resonant pulsed external fields we also introduce the generalized qhr mvkiexpik1vv which can be produced in the same npod system when the fields are appropriately detuned from resonance with the excited state we use these two operators as building blocks in constructing arbitrary preselected unitary transformations we show that the most general un transformation can be factorized and thereby produced by either n1 standard qhrs and an ndimensional phase gate or n1 generalized qhrs and a onedimensional phase gate viewed mathematically these qhr factorizations provide parametrizations of the un group as an example we propose a recipe for constructing the quantum fourier transform qft by at most n interaction steps for example qft requires a single qhr for n2 and only two qhrs for n3 and 4 | [['we', 'propose', 'a', 'simple', 'physical', 'implementation', 'of', 'the', 'quantum', 'householder', 'reflection', 'qhr', 'mvi2vv', 'in', 'a', 'quantum', 'system', 'of', 'n', 'degenerate', 'states', 'forming', 'a', 'qunit', 'coupled', 'simultaneously', 'to', 'an', 'ancillary', 'excited', 'state', 'by', 'n', 'resonant', 'or', 'nearly', 'resonant', 'pulsed', 'external', 'fields', 'we', 'also', 'introduce', 'the', 'generalized', 'qhr', 'mvkiexpik1vv', 'which', 'can', 'be', 'produced', 'in', 'the', 'same', 'npod', 'system', 'when', 'the', 'fields', 'are', 'appropriately', 'detuned', 'from', 'resonance', 'with', 'the', 'excited', 'state', 'we', 'use', 'these', 'two', 'operators', 'as', 'building', 'blocks', 'in', 'constructing', 'arbitrary', 'preselected', 'unitary', 'transformations', 'we', 'show', 'that', 'the', 'most', 'general', 'un', 'transformation', 'can', 'be', 'factorized', 'and', 'thereby', 'produced', 'by', 'either', 'n1', 'standard', 'qhrs', 'and', 'an', 'ndimensional', 'phase', 'gate', 'or', 'n1', 'generalized', 'qhrs', 'and', 'a', 'onedimensional', 'phase', 'gate', 'viewed', 'mathematically', 'these', 'qhr', 'factorizations', 'provide', 'parametrizations', 'of', 'the', 'un', 'group', 'as', 'an', 'example', 'we', 'propose', 'a', 'recipe', 'for', 'constructing', 'the', 'quantum', 'fourier', 'transform', 'qft', 'by', 'at', 'most', 'n', 'interaction', 'steps', 'for', 'example', 'qft', 'requires', 'a', 'single', 'qhr', 'for', 'n2', 'and', 'only', 'two', 'qhrs', 'for', 'n3', 'and', '4']] | [-0.13678936527576296, 0.21933179182697132, -0.05446983004512731, 0.03425077387946658, -0.005120942009671126, -0.21780943571357056, 0.024179650640871842, 0.36977071208530105, -0.2380600562217296, -0.2846748937969096, 0.08371274997844011, -0.24015370764536784, -0.1454634143570729, 0.17527421228842285, -0.006600543696549721, 0.060405746694232224, 0.008462577094906009, 0.018789745665162626, -0.08163849507836858, -0.2280866698056343, 0.3138194041326642, -0.026229084569058612, 0.24699969126595533, -0.05377511425613193, 0.1001540223340271, 0.07284874537435826, 0.06227493912738282, -0.04514995139325038, -0.04214058106977063, 0.09387878732341051, 0.2678137245125981, 0.08252232803060906, 0.19900903081288562, -0.48086856708396225, -0.1585019641381223, 0.08199443298508413, 0.17824758392780496, 0.15534352110898908, -0.06688080517924391, -0.2945683389902115, 0.014132072852225975, -0.16536080363439395, -0.1444476058401051, -0.10985441758821253, -0.027398506447207184, -0.05861552246497013, -0.30034003122127617, 0.01803592265921452, 0.06102279958940926, 0.036902861943235624, -0.015517003016429953, -0.09149755762264249, -0.009668615549162495, 0.09148513915661169, -0.08649249735171907, 0.021431533526629208, 0.12224805500882212, -0.10420995614986168, -0.13970838763052598, 0.33772655904322163, -0.09113471325254068, -0.22177702879707795, 0.14764043295872398, -0.09900640166306403, -0.12644137751485687, 0.07691019453777699, 0.11238661184615921, 0.1420496603444917, -0.11744046832654931, 0.10880159492771782, -0.02475009522459004, 0.16231804988074144, 0.10033019184193108, 0.04697771520482093, 0.19289347015001113, 0.07599926421098643, 0.040481090733374005, 0.17273016437829938, -0.028099040553206577, -0.07082980408304138, -0.3367080681491643, -0.18333877560071415, -0.17009744869428686, 0.1124929304307443, -0.06988610046346366, -0.1619389267754741, 0.3765452196385013, 0.06758113706600852, 0.19738457748899235, 0.026340371729020262, 0.254739824635908, 0.1607432783668628, 0.05351084260910284, 0.06029037765765679, 0.1766563367244089, 0.1341511774036917, -0.005673227157967631, -0.19415200525399995, -0.04433689774887171, 0.0963505351508502] |
708.2812 | Unparticle effects in Supernovae cooling | Recently H. Georgi suggested that a scale invariant unparticle
${\mathcal{U}}$ sector with an infrared fixed point at high energy can couple
with the SM matter via a higher-dimensional operator suppressed by a high
cut-off scale. Intense phenomenological search of this unparticle sector in the
collider and flavour physics context has already been made. Here we explore
it's impact in cosmology, particularly it's possible role in the supernovae
cooling. We found that the energy-loss rate (and thus the cooling) is strongly
dependent on the effective scale \LdaU and the anomalous dimension \dU of this
unparticle theory.
| hep-ph | recently h georgi suggested that a scale invariant unparticle mathcalu sector with an infrared fixed point at high energy can couple with the sm matter via a higherdimensional operator suppressed by a high cutoff scale intense phenomenological search of this unparticle sector in the collider and flavour physics context has already been made here we explore its impact in cosmology particularly its possible role in the supernovae cooling we found that the energyloss rate and thus the cooling is strongly dependent on the effective scale ldau and the anomalous dimension du of this unparticle theory | [['recently', 'h', 'georgi', 'suggested', 'that', 'a', 'scale', 'invariant', 'unparticle', 'mathcalu', 'sector', 'with', 'an', 'infrared', 'fixed', 'point', 'at', 'high', 'energy', 'can', 'couple', 'with', 'the', 'sm', 'matter', 'via', 'a', 'higherdimensional', 'operator', 'suppressed', 'by', 'a', 'high', 'cutoff', 'scale', 'intense', 'phenomenological', 'search', 'of', 'this', 'unparticle', 'sector', 'in', 'the', 'collider', 'and', 'flavour', 'physics', 'context', 'has', 'already', 'been', 'made', 'here', 'we', 'explore', 'its', 'impact', 'in', 'cosmology', 'particularly', 'its', 'possible', 'role', 'in', 'the', 'supernovae', 'cooling', 'we', 'found', 'that', 'the', 'energyloss', 'rate', 'and', 'thus', 'the', 'cooling', 'is', 'strongly', 'dependent', 'on', 'the', 'effective', 'scale', 'ldau', 'and', 'the', 'anomalous', 'dimension', 'du', 'of', 'this', 'unparticle', 'theory']] | [-0.09394063937330717, 0.23353602790754704, -0.10767995941109564, 0.16042036551271419, -0.11156160556711256, -0.14065606784516652, 0.024762736166533277, 0.3222132200277165, -0.24692894343936228, -0.2866399045935587, 0.0458781635793122, -0.27968530569127514, -0.08997437485346668, 0.12540045862429236, 0.046223357067317825, 0.05623389972545403, -0.0276920869505327, 0.015708184369692676, -0.04524651160524962, -0.24269377310748064, 0.335909678365447, 0.16432098274756418, 0.2361381470911989, 0.12218174144233528, 0.08627908861166553, -0.028342573614300866, -0.05305392908937249, -0.02301070940141615, -0.1439191764865475, 0.07718164534062931, 0.1954796263261845, 0.04193284345237771, 0.19840697519554706, -0.37344615594728997, -0.2540222113363837, 0.1450972995083583, 0.16568321138620376, 0.08310027852605441, -0.13040940261225364, -0.27061025286583523, 0.022309903878914683, -0.21215507426103086, -0.14252642589670264, -0.07317846012056659, 0.014172554967042648, -0.11558393199781054, -0.2747185646311233, 0.053479796175930745, -0.024568612755913485, 0.04170687281967778, 0.011812294470636468, -0.1159912678756212, -0.042747481044773994, -0.022161876975779274, 0.11477438273447517, 0.06540567363171201, 0.1672328994021212, -0.18530889311805368, -0.1141534451787409, 0.38463751606545166, -0.12671952258403363, -0.13455924010884604, 0.20992663135065845, -0.2040856068512719, -0.17787914921048611, 0.10786299295723438, 0.1549609163628989, 0.06807904622860644, -0.15510607505903432, 0.25655684070722934, -0.027717605311619608, 0.14933822579148814, 0.05202694763674548, 0.10255338455133728, 0.23910967067472244, 0.22231943386263753, 0.035736084102015744, 0.041839132526595345, -0.07750609856294959, -0.04405677852184071, -0.34393822697824555, -0.10102169872751754, -0.13945297377282068, 0.07002430598398572, -0.08684849536588636, -0.10237854328496676, 0.36348843427472993, 0.14155487444153741, 0.18970409019016907, -0.055225827437090244, 0.2523172187569894, 0.11164590578134123, 0.10513102594475066, 0.05685292772847644, 0.3256756693075754, 0.09651140142477264, 0.1379331886768341, -0.284812568289865, -0.009212650192019186, 0.07092631482764294] |
708.2813 | Study of nuclear correlation effects via 12C(p,n)12N(g.s.,1+) at 296 MeV | We report measurements of the cross section and a complete set of
polarization observables for the Gamow--Teller ${}^{12}{\rm
C}(\vec{p},\vec{n}){}^{12}{\rm N}({\rm g.s.},1^+)$ reaction at a bombarding
energy of 296 MeV.
The data are compared with distorted wave impulse approximation calculations
employing transition form factors normalized to reproduce the observed
beta-decay $ft$ value.
The cross section is significantly under-predicted by the calculations at
momentum transfers $q \gtrsim $ 0.5 ${\rm fm^{-1}}$.
The discrepancy is partly resolved by considering the non-locality of the
nuclear mean field. However, the calculations still under-predict the cross
section at large momentum transfers of $q$ $\simeq$ 1.6 ${\rm fm^{-1}}$.
We also performed calculations employing random phase approximation response
functions and found that the observed enhancement can be attributed in part to
pionic correlations in nuclei.
| nucl-ex | we report measurements of the cross section and a complete set of polarization observables for the gamowteller 12rm cvecpvecn12rm nrm gs1 reaction at a bombarding energy of 296 mev the data are compared with distorted wave impulse approximation calculations employing transition form factors normalized to reproduce the observed betadecay ft value the cross section is significantly underpredicted by the calculations at momentum transfers q gtrsim 05 rm fm1 the discrepancy is partly resolved by considering the nonlocality of the nuclear mean field however the calculations still underpredict the cross section at large momentum transfers of q simeq 16 rm fm1 we also performed calculations employing random phase approximation response functions and found that the observed enhancement can be attributed in part to pionic correlations in nuclei | [['we', 'report', 'measurements', 'of', 'the', 'cross', 'section', 'and', 'a', 'complete', 'set', 'of', 'polarization', 'observables', 'for', 'the', 'gamowteller', '12rm', 'cvecpvecn12rm', 'nrm', 'gs1', 'reaction', 'at', 'a', 'bombarding', 'energy', 'of', '296', 'mev', 'the', 'data', 'are', 'compared', 'with', 'distorted', 'wave', 'impulse', 'approximation', 'calculations', 'employing', 'transition', 'form', 'factors', 'normalized', 'to', 'reproduce', 'the', 'observed', 'betadecay', 'ft', 'value', 'the', 'cross', 'section', 'is', 'significantly', 'underpredicted', 'by', 'the', 'calculations', 'at', 'momentum', 'transfers', 'q', 'gtrsim', '05', 'rm', 'fm1', 'the', 'discrepancy', 'is', 'partly', 'resolved', 'by', 'considering', 'the', 'nonlocality', 'of', 'the', 'nuclear', 'mean', 'field', 'however', 'the', 'calculations', 'still', 'underpredict', 'the', 'cross', 'section', 'at', 'large', 'momentum', 'transfers', 'of', 'q', 'simeq', '16', 'rm', 'fm1', 'we', 'also', 'performed', 'calculations', 'employing', 'random', 'phase', 'approximation', 'response', 'functions', 'and', 'found', 'that', 'the', 'observed', 'enhancement', 'can', 'be', 'attributed', 'in', 'part', 'to', 'pionic', 'correlations', 'in', 'nuclei']] | [-0.08441833936795592, 0.17852730049192905, -0.04727874610037543, 0.12520725207962097, 0.04719165067444556, -0.05015884714759886, 0.041502587627619505, 0.37311236263811587, -0.19914016000926493, -0.3182760902494192, -0.04923751960508525, -0.35382866361737253, 0.018709628675307614, 0.14704450157145038, 0.09907189443707466, 0.034067236315459014, 0.045264170149341226, 0.00939872071146965, -0.12091041348315776, -0.16102164657041432, 0.29880729217268526, 0.10032996447756887, 0.2321292353235185, 0.12914160448219628, 0.04934161599818617, 0.021276491323485972, 0.002941267717629671, -0.015541919030249119, -0.17017957376717824, 0.0376565908996854, 0.2932177727818489, 0.006339919332414866, 0.14264457945525646, -0.3706630973778665, -0.1342848226428032, 0.08590720555745066, 0.12803975706733764, 0.08767904035001993, -0.013816237963736057, -0.2460685144364834, 0.05597839381545782, -0.21069496081210673, -0.1184982746206224, -0.08159903269819915, 0.0320440549114719, -0.0013431961284950376, -0.2904984064847231, 0.14335848831920883, -0.035058455849066375, 0.05333587926044129, -0.08527843107283116, -0.23086345759034158, -0.035197556650266054, 0.0094365289285779, 0.04679380584135651, 0.11948698950302787, 0.18617983657866716, -0.1023639118578285, -0.06434546913579106, 0.39420119992643593, -0.061784045316278936, -0.11694922955427318, 0.03965982770174742, -0.2458989462777972, -0.1087148147020489, 0.23853072512149812, 0.15616544319689274, 0.105148731039837, -0.11128071496076881, 0.08464468382950872, 0.02422893641900737, 0.21884487771987915, 0.09443136032298208, 0.005498939793556929, 0.1294198658540845, 0.13776898545213043, -0.053636442985385654, -0.004820556812919676, -0.1839835443124175, -0.08173669678717851, -0.3220432746708393, -0.05157503113895655, -0.15481304683163763, 0.10225080457364674, -0.05682271796814166, -0.03567820402979851, 0.30714467823132874, 0.06634526981040835, 0.26235004630684855, 0.01221999556198716, 0.2825716221481562, 0.16828797204617876, 0.10467836967669428, 0.08885559587180615, 0.3317269405722618, 0.22737899370864034, 0.07630159316956997, -0.2515659902142361, 0.07831991491094231, -0.008772122010588647] |
708.2814 | Polarizability of molecular chains: does one need exact exchange? | Standard density functional approximations greatly over-estimate the static
polarizability of longchain polymers, but Hartree-Fock or exact exchange
calculations do not. Simple self-interaction corrected (SIC) approximations can
be even better than exact exchange, while their computational cost can scale
only linearly with the number of occupied orbitals.
| physics.atm-clus cond-mat.mtrl-sci physics.comp-ph | standard density functional approximations greatly overestimate the static polarizability of longchain polymers but hartreefock or exact exchange calculations do not simple selfinteraction corrected sic approximations can be even better than exact exchange while their computational cost can scale only linearly with the number of occupied orbitals | [['standard', 'density', 'functional', 'approximations', 'greatly', 'overestimate', 'the', 'static', 'polarizability', 'of', 'longchain', 'polymers', 'but', 'hartreefock', 'or', 'exact', 'exchange', 'calculations', 'do', 'not', 'simple', 'selfinteraction', 'corrected', 'sic', 'approximations', 'can', 'be', 'even', 'better', 'than', 'exact', 'exchange', 'while', 'their', 'computational', 'cost', 'can', 'scale', 'only', 'linearly', 'with', 'the', 'number', 'of', 'occupied', 'orbitals']] | [-0.1202431058096092, 0.13542325883779838, -0.04630139494395774, 0.156568700791863, -0.04512249693557944, -0.20747536514460554, 0.09237337069909858, 0.3942082301085896, -0.2307946544505008, -0.3552059828526462, -0.012758962364624376, -0.31626184681511443, -0.06329861159294682, 0.06613259251563526, 0.04197099276453904, -0.00023071994276150414, 0.06710631742000418, -0.0016331093628769336, -0.14533110710149427, -0.2793011772395719, 0.1439879581752314, 0.11418599775061011, 0.2546770963412912, 0.1145597868801459, -0.03721766477531713, 0.03488500281641989, 0.06144168899070634, 0.10473221346088078, -0.07872418439744608, 0.14969248480781022, 0.24965347003434663, -0.009996706579366455, 0.262654296071876, -0.5642529026321743, -0.20536932656946388, 0.0845431276146606, 0.2253367916336688, 0.22890632123301696, 0.004009771231642883, -0.20706022248866604, 0.019795798737069836, -0.24041066792510127, -0.10721426939024874, -0.18131182049704797, -0.05399526437015637, 0.07459704392290999, -0.24498382735106608, 0.15985791949028877, -0.05167234041120695, -0.011282060939581994, -0.07493751615022673, -0.24616316993943538, -0.09931296017020941, 0.045650453524380595, 0.06269465194529165, 0.021773105750427298, 0.22135647791235344, -0.11736350207913505, -0.02555890838899042, 0.4134950073759841, -0.042825080774808, -0.2653086612244015, 0.1954813238395297, -0.15318520095847224, -0.05452202129526995, 0.24132089184738859, 0.10442008071391762, 0.12407185530047053, -0.13197787505898462, 0.16097963909092156, 0.055390481581486274, 0.28086355247575306, 0.09955714100404926, 0.05350281725354169, 0.12446813451369172, 0.04964220035902184, 0.08056505186908433, 0.0076353995043419946, -0.008493852234728958, -0.1774857012534757, -0.2025823660356843, -0.08090298711423478, -0.2546154935565858, 0.0892763812067721, -0.15588964623115634, -0.24269505225769852, 0.2843401639357857, 0.10039477799411702, 0.06460191498247339, 0.11469692212488988, 0.323363052195181, 0.14872405206298697, 0.09871749848674011, 0.06433512424321278, 0.24413927946158726, 0.10816969054386667, -0.021942358942317736, -0.23945695266087094, 0.14710915410567238, 0.04917009732098845] |
708.2815 | Driven degenerate three-level cascade laser | We analyze a degenerate three-level cascade laser coupled to an external
coherent light via one of the coupler mirrors and vacuum reservoir in the
other, employing the stochastic differential equation associated with the
normal ordering. We study the squeezing properties and also calculate the mean
photon number of the cavity radiation. It turns out that the generated light
exhibits up to 98.3% squeezing under certain conditions pertaining to the
initial preparation of the superposition and the amplitude of the driving
radiation. Moreover, the mean photon number is found to be large where there is
a better squeezing. Hence it is believed that the system under consideration
can generate an intense squeezed light.
| quant-ph | we analyze a degenerate threelevel cascade laser coupled to an external coherent light via one of the coupler mirrors and vacuum reservoir in the other employing the stochastic differential equation associated with the normal ordering we study the squeezing properties and also calculate the mean photon number of the cavity radiation it turns out that the generated light exhibits up to 983 squeezing under certain conditions pertaining to the initial preparation of the superposition and the amplitude of the driving radiation moreover the mean photon number is found to be large where there is a better squeezing hence it is believed that the system under consideration can generate an intense squeezed light | [['we', 'analyze', 'a', 'degenerate', 'threelevel', 'cascade', 'laser', 'coupled', 'to', 'an', 'external', 'coherent', 'light', 'via', 'one', 'of', 'the', 'coupler', 'mirrors', 'and', 'vacuum', 'reservoir', 'in', 'the', 'other', 'employing', 'the', 'stochastic', 'differential', 'equation', 'associated', 'with', 'the', 'normal', 'ordering', 'we', 'study', 'the', 'squeezing', 'properties', 'and', 'also', 'calculate', 'the', 'mean', 'photon', 'number', 'of', 'the', 'cavity', 'radiation', 'it', 'turns', 'out', 'that', 'the', 'generated', 'light', 'exhibits', 'up', 'to', '983', 'squeezing', 'under', 'certain', 'conditions', 'pertaining', 'to', 'the', 'initial', 'preparation', 'of', 'the', 'superposition', 'and', 'the', 'amplitude', 'of', 'the', 'driving', 'radiation', 'moreover', 'the', 'mean', 'photon', 'number', 'is', 'found', 'to', 'be', 'large', 'where', 'there', 'is', 'a', 'better', 'squeezing', 'hence', 'it', 'is', 'believed', 'that', 'the', 'system', 'under', 'consideration', 'can', 'generate', 'an', 'intense', 'squeezed', 'light']] | [-0.14353578705049586, 0.22964625364303565, -0.09500394360033429, 0.050508664046771755, -0.008442357267735392, -0.13997276883206464, 0.003938502940789996, 0.3729357610074138, -0.27693183234493646, -0.2880305923588042, 0.05592396267768761, -0.26953800054798194, -0.0858366726440311, 0.25696884286922533, -0.028267289491070966, 0.043746051544855745, 0.04572857472313834, 0.04299442941347869, -0.02150441020577481, -0.20954243905518005, 0.33130886702981244, 0.048692108040475954, 0.3187894029043881, 0.007542553907634491, 0.14808151506752307, -0.0043872780578177685, 0.027045162228335227, -0.03985529235797003, -0.07338003057897627, 0.05637229722664675, 0.16172742544690014, 0.06904003187082708, 0.249847493134439, -0.3959560198127292, -0.18665102866985503, 0.14812875335337594, 0.10187638347269967, 0.15004132223215752, -0.020197887397703847, -0.26861630878660697, 0.018963892840214873, -0.14095972417687466, -0.1612990592173966, -0.06673826325329303, -0.022151903037281175, 0.026249439331357798, -0.2861512827720227, 0.018231803723600542, 0.044796821804214106, -0.0037050344981253147, -0.01915275809005834, -0.022559693177754525, -0.05765549936248655, 0.059751822180779915, 0.03339699852222111, 0.014092598677962087, 0.15997456191767664, -0.1640006271996494, -0.053273689933121204, 0.3778779592913842, -0.11056235435743085, -0.1796962214866653, 0.148687542031569, -0.15617282029208063, -0.032593881994086714, 0.17320117621316708, 0.13096868720770413, 0.09999519500083157, -0.14477880418832814, -0.006989664823777275, -0.03092321755164968, 0.21244761886607325, 0.11753910748562443, 0.09796145090201337, 0.19787178068820918, 0.13190709441135237, 0.0646075607759745, 0.22427748222617083, -0.09592810697306829, -0.11155643512029201, -0.32720623302572804, -0.11592752180461373, -0.153844450791699, 0.11094698110537138, -0.07390003541578542, -0.14618005626211275, 0.3949242435670125, 0.15197414291989325, 0.1150426362208756, -0.046520877113964944, 0.2859230598135452, 0.20502156386750617, 0.04100450993947951, 0.05040358059860799, 0.3091797421553305, 0.18807762161616534, 0.05764163367816114, -0.3069327750999946, 0.008026671529348408, -0.05205546491613079] |
708.2816 | Testing Isotropy of Cosmic Microwave Background Radiation | We introduce new symmetry-based methods to test for isotropy in cosmic
microwave background radiation. Each angular multipole is factored into unique
products of power eigenvectors, related multipoles and singular values that
provide 2 new rotationally invariant measures mode by mode. The power entropy
and directional entropy are new tests of randomness that are independent of the
usual CMB power. Simulated galactic plane contamination is readily identified,
and the new procedures mesh perfectly with linear transformations employed for
windowed-sky analysis. The ILC -WMAP data maps show 7 axes well aligned with
one another and the direction Virgo. Parameter free statistics find 12
independent cases of extraordinary axial alignment, low power entropy, or both
having 5% probability or lower in an isotropic distribution. Isotropy of the
ILC maps is ruled out to confidence levels of better than 99.9%, whether or not
coincidences with other puzzles coming from the Virgo axis are included. Our
work shows that anisotropy is not confined to the low l region, but extends
over a much larger l range.
| astro-ph | we introduce new symmetrybased methods to test for isotropy in cosmic microwave background radiation each angular multipole is factored into unique products of power eigenvectors related multipoles and singular values that provide 2 new rotationally invariant measures mode by mode the power entropy and directional entropy are new tests of randomness that are independent of the usual cmb power simulated galactic plane contamination is readily identified and the new procedures mesh perfectly with linear transformations employed for windowedsky analysis the ilc wmap data maps show 7 axes well aligned with one another and the direction virgo parameter free statistics find 12 independent cases of extraordinary axial alignment low power entropy or both having 5 probability or lower in an isotropic distribution isotropy of the ilc maps is ruled out to confidence levels of better than 999 whether or not coincidences with other puzzles coming from the virgo axis are included our work shows that anisotropy is not confined to the low l region but extends over a much larger l range | [['we', 'introduce', 'new', 'symmetrybased', 'methods', 'to', 'test', 'for', 'isotropy', 'in', 'cosmic', 'microwave', 'background', 'radiation', 'each', 'angular', 'multipole', 'is', 'factored', 'into', 'unique', 'products', 'of', 'power', 'eigenvectors', 'related', 'multipoles', 'and', 'singular', 'values', 'that', 'provide', '2', 'new', 'rotationally', 'invariant', 'measures', 'mode', 'by', 'mode', 'the', 'power', 'entropy', 'and', 'directional', 'entropy', 'are', 'new', 'tests', 'of', 'randomness', 'that', 'are', 'independent', 'of', 'the', 'usual', 'cmb', 'power', 'simulated', 'galactic', 'plane', 'contamination', 'is', 'readily', 'identified', 'and', 'the', 'new', 'procedures', 'mesh', 'perfectly', 'with', 'linear', 'transformations', 'employed', 'for', 'windowedsky', 'analysis', 'the', 'ilc', 'wmap', 'data', 'maps', 'show', '7', 'axes', 'well', 'aligned', 'with', 'one', 'another', 'and', 'the', 'direction', 'virgo', 'parameter', 'free', 'statistics', 'find', '12', 'independent', 'cases', 'of', 'extraordinary', 'axial', 'alignment', 'low', 'power', 'entropy', 'or', 'both', 'having', '5', 'probability', 'or', 'lower', 'in', 'an', 'isotropic', 'distribution', 'isotropy', 'of', 'the', 'ilc', 'maps', 'is', 'ruled', 'out', 'to', 'confidence', 'levels', 'of', 'better', 'than', '999', 'whether', 'or', 'not', 'coincidences', 'with', 'other', 'puzzles', 'coming', 'from', 'the', 'virgo', 'axis', 'are', 'included', 'our', 'work', 'shows', 'that', 'anisotropy', 'is', 'not', 'confined', 'to', 'the', 'low', 'l', 'region', 'but', 'extends', 'over', 'a', 'much', 'larger', 'l', 'range']] | [-0.1109723651822766, 0.14200863983723513, -0.04215571886914618, 0.07795204521663597, -0.09880015105146038, -0.14563817452940653, -0.008250396208399359, 0.36680959695402315, -0.25536861860686366, -0.28250732941224294, 0.061520227774470936, -0.3106548322145553, -0.022593946371446638, 0.22128233279731563, 0.012055002378731253, 0.027841459475680227, 0.024073299419080072, -0.0033357439971843953, -0.06483861073605059, -0.23657360219187787, 0.28175404559930456, 0.15151628548936807, 0.3118139013976735, -0.02449925176470595, 0.09088320729719913, -0.030629430897533894, -0.07121376199236906, 0.028847434449851467, -0.12110719751247362, 0.07333649939117844, 0.23802050101461217, 0.13289572168475441, 0.1847275250700905, -0.34467342630686126, -0.19505769289646516, 0.14199327801847283, 0.13745830942438367, 0.07770042981240241, -0.023996802756343694, -0.2523824903675739, 0.0830255274030873, -0.15424359227968928, -0.14378850719864097, -0.07998864561565877, -0.01366878791082212, 0.005352167485911837, -0.2555673665312283, 0.13712622404153293, 0.07628004208056476, 0.08965454740271739, -0.03868902079514502, -0.15732364764108378, -0.05113804395694067, 0.05906941419987775, 0.05619274200460709, 0.04651100611697663, 0.15328417706358083, -0.06395173899671884, -0.11286412146052018, 0.3794887315002544, -0.053018678072925575, -0.2105225124012898, 0.16722186909687212, -0.21223281919031733, -0.15110983847750023, 0.14971752343699335, 0.1526399486554403, 0.059633790715323653, -0.11254814779933761, 0.07578498833600486, 0.01957407261874965, 0.21033434131840134, 0.0964048847419155, 0.018155265667968812, 0.2524840387187022, 0.05051551372881102, 0.1214725938399651, 0.12833723196903626, -0.12737640005481593, -0.03307753966381664, -0.30795639076489295, -0.09481270724482944, -0.1594135435000199, 0.03526971406553297, -0.13438949380583567, -0.13204908996053477, 0.3741512291640153, 0.10359469349222149, 0.21156614767935347, 0.04245537362499711, 0.332041341729243, 0.07413396941128132, 0.07146410208250231, 0.07543003334910335, 0.2840399461086182, 0.13160780227113078, 0.04578212127568858, -0.14072279937784463, 0.00982568357961581, -0.013646771753316416] |
708.2817 | Thermal expansion of the magnetically ordering intermetallics RTMg (R =
Eu, Gd and T = Ag, Au) | We report measurements of the thermal expansion for two Eu$^{+2}$- and two
Gd$^{+3}$-based intermetallics which exhibit ferro- or antiferromagnetic phase
transitions. These materials show sharp positive (EuAgMg and GdAuMg) and
negative (EuAuMg and GdAgMg) peaks in the temperature dependence of the thermal
expansion coefficient $\alpha$ which become smeared and/or displaced in an
external magnetic field. Together with specific heat data we determine the
initial pressure dependences of the transition temperatures at ambient pressure
using the Ehrenfest or Clausius-Clapeyron relation. We find large pressure
dependences indicating strong spin-phonon coupling, in particular for GdAgMg
and EuAuMg where a quantum phase transition might be reached at moderate
pressures of a few GPa.
| cond-mat.mtrl-sci cond-mat.other | we report measurements of the thermal expansion for two eu2 and two gd3based intermetallics which exhibit ferro or antiferromagnetic phase transitions these materials show sharp positive euagmg and gdaumg and negative euaumg and gdagmg peaks in the temperature dependence of the thermal expansion coefficient alpha which become smeared andor displaced in an external magnetic field together with specific heat data we determine the initial pressure dependences of the transition temperatures at ambient pressure using the ehrenfest or clausiusclapeyron relation we find large pressure dependences indicating strong spinphonon coupling in particular for gdagmg and euaumg where a quantum phase transition might be reached at moderate pressures of a few gpa | [['we', 'report', 'measurements', 'of', 'the', 'thermal', 'expansion', 'for', 'two', 'eu2', 'and', 'two', 'gd3based', 'intermetallics', 'which', 'exhibit', 'ferro', 'or', 'antiferromagnetic', 'phase', 'transitions', 'these', 'materials', 'show', 'sharp', 'positive', 'euagmg', 'and', 'gdaumg', 'and', 'negative', 'euaumg', 'and', 'gdagmg', 'peaks', 'in', 'the', 'temperature', 'dependence', 'of', 'the', 'thermal', 'expansion', 'coefficient', 'alpha', 'which', 'become', 'smeared', 'andor', 'displaced', 'in', 'an', 'external', 'magnetic', 'field', 'together', 'with', 'specific', 'heat', 'data', 'we', 'determine', 'the', 'initial', 'pressure', 'dependences', 'of', 'the', 'transition', 'temperatures', 'at', 'ambient', 'pressure', 'using', 'the', 'ehrenfest', 'or', 'clausiusclapeyron', 'relation', 'we', 'find', 'large', 'pressure', 'dependences', 'indicating', 'strong', 'spinphonon', 'coupling', 'in', 'particular', 'for', 'gdagmg', 'and', 'euaumg', 'where', 'a', 'quantum', 'phase', 'transition', 'might', 'be', 'reached', 'at', 'moderate', 'pressures', 'of', 'a', 'few', 'gpa']] | [-0.16807315349624066, 0.27775809049136707, -0.05588269806964305, -0.0008204956765024407, -0.038521989768606074, -0.15372691493372895, 0.09465962266594678, 0.3959749039009358, -0.26559876748225064, -0.30510708602886755, 0.055930662687158086, -0.33094424099742786, -0.05961535200114968, 0.13979463764687874, 0.12098724294218768, -0.026326523334221932, -0.06028785819789051, 0.03568757261382416, -0.1369076645074105, -0.1653263066393477, 0.30790227843285767, 0.027158912532913127, 0.27676657102640395, 0.1377025380441286, 0.06841426742945807, -0.08221876056123416, 0.07993451277137671, 0.0695981720860288, -0.1719404408469168, -0.045008829198054316, 0.2381561011216124, -0.08321186165479057, 0.19381623185303026, -0.41235441559003394, -0.20393328277339923, 0.05670590890860818, 0.07512201751736038, 0.12348504838289566, -0.08474121719951407, -0.24547577852799188, 0.0010272358517044956, -0.12265020192067311, -0.11583258977410772, -0.13612145244525925, -0.0014832371662741582, 0.01183301475333068, -0.30691507764079257, 0.17397546606337272, 0.056517481939523544, 0.14582997337616618, -0.12031054972372587, -0.14878030782068166, -0.039044986180599456, 0.06005032677926774, 0.05792585225974761, 0.04070946599076529, 0.1758124533615717, -0.12260647392063176, -0.04928106838584091, 0.33550814199216156, -0.10627805069088936, -0.019208063751242115, 0.1990553057408955, -0.24544996060250165, -0.12873691118783454, 0.18136606558940363, 0.1256596688994939, 0.07871515003204779, -0.10486552773893458, 0.02087046470644531, 0.08803676030354447, 0.1694897131099212, 0.1063066610966999, 0.040354646443959, 0.2273177920153491, 0.08552060821839581, -0.0012815397965170226, 0.15812432916396416, -0.09744867979937676, -0.053883793361448835, -0.24958577460962014, -0.1559910399577065, -0.17208174585807814, 0.049691260507493056, -0.15834450945458758, -0.21094124515436916, 0.31330361870994555, 0.14617295305765102, 0.22632525184019966, -0.045621954883421655, 0.22095338388988114, 0.14272400708213556, 0.030443718756359178, 0.09128914960632914, 0.2812882720501822, 0.1767000937834382, 0.15947558268344084, -0.29917314452643606, 0.07896236890872706, -0.021645757369697094] |
708.2818 | Baryon-charge Chemical Potential in AdS/CFT | We present a closed framework of AdS/CFT with finite U(1)B-charge chemical
potential. We show how the gauge-invariant identification of the chemical
potential with the bulk gauge field emerges from the standard AdS/CFT
dictionary. Physical importance and necessity of the Minkowski embeddings
within the present framework is also shown numerically in the D3-D7 systems. We
point out that the D3-D7 model with only the black-hole embeddings does not
have the low-temperature and low-chemical-potential region in the
grand-canonical ensemble, hence it is incomplete. A physical interpretation
that explains these numerical results is also proposed.
| hep-th hep-ph nucl-th | we present a closed framework of adscft with finite u1bcharge chemical potential we show how the gaugeinvariant identification of the chemical potential with the bulk gauge field emerges from the standard adscft dictionary physical importance and necessity of the minkowski embeddings within the present framework is also shown numerically in the d3d7 systems we point out that the d3d7 model with only the blackhole embeddings does not have the lowtemperature and lowchemicalpotential region in the grandcanonical ensemble hence it is incomplete a physical interpretation that explains these numerical results is also proposed | [['we', 'present', 'a', 'closed', 'framework', 'of', 'adscft', 'with', 'finite', 'u1bcharge', 'chemical', 'potential', 'we', 'show', 'how', 'the', 'gaugeinvariant', 'identification', 'of', 'the', 'chemical', 'potential', 'with', 'the', 'bulk', 'gauge', 'field', 'emerges', 'from', 'the', 'standard', 'adscft', 'dictionary', 'physical', 'importance', 'and', 'necessity', 'of', 'the', 'minkowski', 'embeddings', 'within', 'the', 'present', 'framework', 'is', 'also', 'shown', 'numerically', 'in', 'the', 'd3d7', 'systems', 'we', 'point', 'out', 'that', 'the', 'd3d7', 'model', 'with', 'only', 'the', 'blackhole', 'embeddings', 'does', 'not', 'have', 'the', 'lowtemperature', 'and', 'lowchemicalpotential', 'region', 'in', 'the', 'grandcanonical', 'ensemble', 'hence', 'it', 'is', 'incomplete', 'a', 'physical', 'interpretation', 'that', 'explains', 'these', 'numerical', 'results', 'is', 'also', 'proposed']] | [-0.08609647025318387, 0.10961813618336896, -0.1265180998706965, 0.07500432223813343, -0.056427337167845974, -0.094890147739264, 0.044657218080668984, 0.365256427449512, -0.21183364731924875, -0.23959584259888628, 0.04715147481688841, -0.2596182399889925, -0.19822236053021317, 0.13108949964753464, -0.035750138836882106, 0.04214176455778735, 0.0386082345369057, 0.059079176684902916, -0.10441278481016775, -0.2504296964853183, 0.3372275201798222, 0.04160126957755823, 0.30131682110848007, 0.10471459951988615, 0.09584479400335433, -0.020373417340874018, 0.007140624869082656, 0.05671288881701632, -0.11454966325126716, 0.09618594853596373, 0.23796093871223403, 0.133154302559138, 0.19214404169163044, -0.3980284278373142, -0.2808700426184869, 0.09655379955298625, 0.14665662342743888, 0.16262627987620923, -0.09149955636770515, -0.25737640873662065, 0.07424193091056012, -0.17116354396157377, -0.14161526646713246, -0.14390409895945544, -0.026468066916964784, -0.05139458639506292, -0.22770115094013757, 0.07987807079533032, 0.04805880457490355, 0.024152762911558805, -0.08959726263528464, -0.08430844210702312, -0.03515154119212549, 0.08652520472961632, 0.04857145423571078, 0.032889386268005104, 0.14257552644115065, -0.1256968220491167, -0.0905443494627764, 0.3759666846573844, -0.05630337234054293, -0.21982008732016106, 0.21489865828438529, -0.15380244225181722, -0.13284031112913738, 0.07220448168751957, 0.08904143764156398, 0.11981392625187125, -0.1816810406539794, 0.17283814071785086, -0.07281318787935671, 0.13857289194033462, 0.009022828767198947, 0.02116681642543811, 0.27363619705723535, 0.16747256566944357, -0.025924901240044734, 0.15552301596655704, -0.06717803811265545, -0.15877461654471828, -0.3797915117549045, -0.12587101304146286, -0.16308341288918649, 0.04783388802664646, -0.14594843174083988, -0.17015503691912343, 0.36220601449751266, 0.20670022664509796, 0.19326821883505846, 0.02338469139771065, 0.27595427820131513, 0.0778636146275388, 0.06188467435620643, 0.07688847180599204, 0.28118650317396765, 0.11111519134675081, 0.1264855341825031, -0.25451203871385325, -0.03834718002446487, 0.11669420185793129] |
708.2819 | On the cyclic subgroup separability of free products of two groups with
amalgamated subgroup | Let $G$ be a free product of two groups with amalgamated subgroup, $\pi$ be
either the set of all prime numbers or the one-element set \{$p$\} for some
prime number $p$. Denote by $\Sigma$ the family of all cyclic subgroups of
group $G$, which are separable in the class of all finite $\pi$-groups.
Obviously, cyclic subgroups of the free factors, which aren't separable in
these factors by the family of all normal subgroups of finite $\pi$-index of
group $G$, the subgroups conjugated with them and all subgroups, which aren't
$\pi^{\prime}$-isolated, don't belong to $\Sigma$. Some sufficient conditions
are obtained for $\Sigma$ to coincide with the family of all other
$\pi^{\prime}$-isolated cyclic subgroups of group $G$. It is proved, in
particular, that the residual $p$-finiteness of a free product with cyclic
amalgamation implies the $p$-separability of all $p^{\prime}$-isolated cyclic
subgroups if the free factors are free or finitely generated residually
$p$-finite nilpotent groups.
| math.GR | let g be a free product of two groups with amalgamated subgroup pi be either the set of all prime numbers or the oneelement set p for some prime number p denote by sigma the family of all cyclic subgroups of group g which are separable in the class of all finite pigroups obviously cyclic subgroups of the free factors which arent separable in these factors by the family of all normal subgroups of finite piindex of group g the subgroups conjugated with them and all subgroups which arent piprimeisolated dont belong to sigma some sufficient conditions are obtained for sigma to coincide with the family of all other piprimeisolated cyclic subgroups of group g it is proved in particular that the residual pfiniteness of a free product with cyclic amalgamation implies the pseparability of all pprimeisolated cyclic subgroups if the free factors are free or finitely generated residually pfinite nilpotent groups | [['let', 'g', 'be', 'a', 'free', 'product', 'of', 'two', 'groups', 'with', 'amalgamated', 'subgroup', 'pi', 'be', 'either', 'the', 'set', 'of', 'all', 'prime', 'numbers', 'or', 'the', 'oneelement', 'set', 'p', 'for', 'some', 'prime', 'number', 'p', 'denote', 'by', 'sigma', 'the', 'family', 'of', 'all', 'cyclic', 'subgroups', 'of', 'group', 'g', 'which', 'are', 'separable', 'in', 'the', 'class', 'of', 'all', 'finite', 'pigroups', 'obviously', 'cyclic', 'subgroups', 'of', 'the', 'free', 'factors', 'which', 'arent', 'separable', 'in', 'these', 'factors', 'by', 'the', 'family', 'of', 'all', 'normal', 'subgroups', 'of', 'finite', 'piindex', 'of', 'group', 'g', 'the', 'subgroups', 'conjugated', 'with', 'them', 'and', 'all', 'subgroups', 'which', 'arent', 'piprimeisolated', 'dont', 'belong', 'to', 'sigma', 'some', 'sufficient', 'conditions', 'are', 'obtained', 'for', 'sigma', 'to', 'coincide', 'with', 'the', 'family', 'of', 'all', 'other', 'piprimeisolated', 'cyclic', 'subgroups', 'of', 'group', 'g', 'it', 'is', 'proved', 'in', 'particular', 'that', 'the', 'residual', 'pfiniteness', 'of', 'a', 'free', 'product', 'with', 'cyclic', 'amalgamation', 'implies', 'the', 'pseparability', 'of', 'all', 'pprimeisolated', 'cyclic', 'subgroups', 'if', 'the', 'free', 'factors', 'are', 'free', 'or', 'finitely', 'generated', 'residually', 'pfinite', 'nilpotent', 'groups']] | [-0.20108262292381857, 0.22295452612547242, -0.06213143886364743, 0.003345725212886068, -0.09084626605740564, -0.14173344212273756, -0.005288951355507787, 0.3789179349178765, -0.3499347049438832, -0.24073982027162905, 0.10046981081531263, -0.2724867768040827, -0.03490778768029647, 0.22172137937464176, -0.10522642762077097, -0.05878225307227397, 0.053879152151889036, 0.19525560537720618, -0.0577691227346532, -0.2923633837700207, 0.3857599322234287, -0.1281602379238727, 0.21130629827832284, -0.044448858573652654, 0.024327300545968572, 0.0027279450881237885, -0.023924199070743456, 0.02068032003736415, -0.12881436148448727, 0.0839940483139774, 0.3029419954099572, 0.0796196459583482, 0.23649323438959463, -0.3367081137538767, -0.1769493769974682, 0.31208942031018994, 0.10205651635817271, -0.056348013855535915, -0.022749220413871767, -0.23762672383110134, 0.15884973701773858, -0.2274975759439728, -0.13129616252520457, -0.05071481722121944, 0.09499361837396816, 0.03724615159919675, -0.2277460084550184, 0.013550045032079528, 0.07637156985801499, 0.12588644984374647, -0.022486545831332503, -0.178415894116846, -0.07656058729277784, 0.15609247548518335, 0.039800132692911896, -0.026570460040020904, 0.06530174077072713, -0.05251421517420079, -0.0945784897879273, 0.4433599672296883, -0.035037914511975736, -0.2046929375667657, 0.1273547741568641, -0.22877456111275926, -0.19503555553616816, 0.16290234218725338, 0.051092865094415796, 0.13048957264190222, -0.06611181756277207, 0.19203067778056918, -0.14748202348888226, 0.046350787111817775, 0.08431623079402208, -0.0005507307589611634, 0.07999081367335352, 0.011463843648746407, 0.06656958368055675, 0.09087386409804339, 0.09685799444777746, 0.09990657680686943, -0.39163123038248954, -0.1556280723386476, -0.08343225609603003, 0.09862040009248216, -0.10334881849744956, -0.21953076960164167, 0.40389524401501326, 0.00459252629226365, 0.0905133840013422, 0.11650897554188434, 0.13447345394108975, -0.0007793512735848448, 0.09939418288999471, 0.13937991191347948, 0.037075352914026326, 0.21336186375646365, -0.2560597694586633, -0.17654258695424718, -0.0028069940978521796, 0.1580805120780608] |
708.282 | Associated Charm Production in Neutrino-Nucleus Interactions | In this paper a search for associated charm production both in neutral and
charged current $\nu$-nucleus interactions is presented. The improvement of
automatic scanning systems in the {CHORUS} experiment allows an efficient
search to be performed in emulsion for short-lived particles. Hence a search
for rare processes, like the associated charm production, becomes possible
through the observation of the double charm-decay topology with a very low
background. About 130,000 $\nu$ interactions located in the emulsion target
have been analysed. Three events with two charm decays have been observed in
the neutral-current sample with an estimated background of 0.18$\pm$0.05. The
relative rate of the associated charm cross-section in deep inelastic $\nu$
interactions, $\sigma(c\bar{c}\nu)/\sigma_\mathrm{NC}^\mathrm{DIS}=
(3.62^{+2.95}_{-2.42}({stat})\pm 0.54({syst}))\times 10^{-3}$ has been
measured. One event with two charm decays has been observed in charged-current
$\nu_\mu$ interactions with an estimated background of 0.18$\pm$0.06 and the
upper limit on associated charm production in charged-current interactions at
90% C.L. has been found to be $\sigma (c\bar{c} \mu^-)/\sigma_\mathrm{CC} <
9.69 \times 10^{-4}$.
| hep-ex | in this paper a search for associated charm production both in neutral and charged current nunucleus interactions is presented the improvement of automatic scanning systems in the chorus experiment allows an efficient search to be performed in emulsion for shortlived particles hence a search for rare processes like the associated charm production becomes possible through the observation of the double charmdecay topology with a very low background about 130000 nu interactions located in the emulsion target have been analysed three events with two charm decays have been observed in the neutralcurrent sample with an estimated background of 018pm005 the relative rate of the associated charm crosssection in deep inelastic nu interactions sigmacbarcnusigma_mathrmncmathrmdis 362295_242statpm 054systtimes 103 has been measured one event with two charm decays has been observed in chargedcurrent nu_mu interactions with an estimated background of 018pm006 and the upper limit on associated charm production in chargedcurrent interactions at 90 cl has been found to be sigma cbarc musigma_mathrmcc 969 times 104 | [['in', 'this', 'paper', 'a', 'search', 'for', 'associated', 'charm', 'production', 'both', 'in', 'neutral', 'and', 'charged', 'current', 'nunucleus', 'interactions', 'is', 'presented', 'the', 'improvement', 'of', 'automatic', 'scanning', 'systems', 'in', 'the', 'chorus', 'experiment', 'allows', 'an', 'efficient', 'search', 'to', 'be', 'performed', 'in', 'emulsion', 'for', 'shortlived', 'particles', 'hence', 'a', 'search', 'for', 'rare', 'processes', 'like', 'the', 'associated', 'charm', 'production', 'becomes', 'possible', 'through', 'the', 'observation', 'of', 'the', 'double', 'charmdecay', 'topology', 'with', 'a', 'very', 'low', 'background', 'about', '130000', 'nu', 'interactions', 'located', 'in', 'the', 'emulsion', 'target', 'have', 'been', 'analysed', 'three', 'events', 'with', 'two', 'charm', 'decays', 'have', 'been', 'observed', 'in', 'the', 'neutralcurrent', 'sample', 'with', 'an', 'estimated', 'background', 'of', '018pm005', 'the', 'relative', 'rate', 'of', 'the', 'associated', 'charm', 'crosssection', 'in', 'deep', 'inelastic', 'nu', 'interactions', 'sigmacbarcnusigma_mathrmncmathrmdis', '362295_242statpm', '054systtimes', '103', 'has', 'been', 'measured', 'one', 'event', 'with', 'two', 'charm', 'decays', 'has', 'been', 'observed', 'in', 'chargedcurrent', 'nu_mu', 'interactions', 'with', 'an', 'estimated', 'background', 'of', '018pm006', 'and', 'the', 'upper', 'limit', 'on', 'associated', 'charm', 'production', 'in', 'chargedcurrent', 'interactions', 'at', '90', 'cl', 'has', 'been', 'found', 'to', 'be', 'sigma', 'cbarc', 'musigma_mathrmcc', '969', 'times', '104']] | [-0.07385645611812511, 0.21852844528085927, -0.048267964319130705, 0.13319997678721143, 0.012617849438421189, -0.1101651863780834, 0.04205486023002454, 0.337707858801549, -0.18015138183630283, -0.3091288190214865, 0.01834716117535267, -0.4043695835713034, 0.030482301843022145, 0.15765739187087502, 0.08683888618458784, 0.06521216693123982, 0.08612721118392543, 0.049684071958425544, -0.014291831607284445, -0.21079929084517063, 0.22801706829604002, 0.09303100457125824, 0.24160406798004141, 0.12485322870554462, 0.06177942498602093, -0.01536096601236251, -0.09247267589971964, -0.0394571365428067, -0.09405665304511786, 0.035333461059077136, 0.23876439837678787, 0.07806501521263272, 0.13813109484411054, -0.3923259828718015, -0.12374717139548833, 0.1535438419079348, 0.20182504355607014, 0.050657927063706844, -0.11010570116716648, -0.344220517792048, 0.0933764670245094, -0.20099577182122777, -0.09314143561247376, -0.025380820788503174, 0.05114615656089999, -0.03148590428153834, -0.2818847453762447, 0.07345841813892606, -0.06572035863641612, 0.04850282668372646, -0.023054958232903794, -0.1720889569891076, -0.005774908062941846, 0.05838443836077086, 0.10926646804286828, 0.10525382066506052, 0.15930560674638516, -0.17030756259787708, -0.18709933376240154, 0.36324381986332516, -0.09127212612544217, -0.1776187412726182, 0.20774975798107803, -0.19994169502188602, -0.1603540411624577, 0.24029300544531115, 0.24091555803052842, 0.08331886164829015, -0.2618458406218598, 0.0936159057371814, -0.0019246904780307124, 0.17030290339682852, 0.06703473992585655, 0.05638572961587699, 0.2019693257076846, 0.29681687391918876, -0.008878891281182728, 0.047390987307223825, -0.1812705272448159, -0.0398823318135504, -0.28197631948297064, -0.11279173100014186, -0.052802245216744564, 0.07578940600036613, -0.01652383562158643, -0.10462991296644172, 0.31618152724338633, 0.07457216432498347, 0.25550488097773444, -0.0480281145807596, 0.2657413930662217, 0.07147394847124815, 0.06415269250620997, 0.030154119969736184, 0.3411489930845076, 0.15283259370321062, 0.11440641074892013, -0.22861084015589328, 0.11185075776471246, -0.0035161385522975075] |
708.2821 | Collective flow in heavy ion collisions at intermediate energies | We present results of a flow analysis for the set of reactions of 124,129Xe
projectiles and 112,124Sn targets at incident energies 100 and 150 A MeV
studied with the INDRA detector at GSI. The dependence on centrality and on p_t
of the directed and elliptic flow are determined for isotopically selected
reaction products with Z \le 3. The flow parameters v_1 and v_2, in general,
follow expected trends but isotopic effects are small.
| nucl-ex | we present results of a flow analysis for the set of reactions of 124129xe projectiles and 112124sn targets at incident energies 100 and 150 a mev studied with the indra detector at gsi the dependence on centrality and on p_t of the directed and elliptic flow are determined for isotopically selected reaction products with z le 3 the flow parameters v_1 and v_2 in general follow expected trends but isotopic effects are small | [['we', 'present', 'results', 'of', 'a', 'flow', 'analysis', 'for', 'the', 'set', 'of', 'reactions', 'of', '124129xe', 'projectiles', 'and', '112124sn', 'targets', 'at', 'incident', 'energies', '100', 'and', '150', 'a', 'mev', 'studied', 'with', 'the', 'indra', 'detector', 'at', 'gsi', 'the', 'dependence', 'on', 'centrality', 'and', 'on', 'p_t', 'of', 'the', 'directed', 'and', 'elliptic', 'flow', 'are', 'determined', 'for', 'isotopically', 'selected', 'reaction', 'products', 'with', 'z', 'le', '3', 'the', 'flow', 'parameters', 'v_1', 'and', 'v_2', 'in', 'general', 'follow', 'expected', 'trends', 'but', 'isotopic', 'effects', 'are', 'small']] | [-0.06548855966927174, 0.24974786893128315, -0.08710638730594332, 0.04396286472264263, 0.03822017640332989, -0.11317809277938472, -0.016674313290018797, 0.4041007755634685, -0.21242805287733468, -0.3347018566499982, -0.020482961788527772, -0.42789796988169354, 0.06905187529304789, 0.19305153756674068, 0.08066368295759377, 0.07993282580476564, 0.13019321721771526, 0.04284759526166858, -0.026293946598242555, -0.17447881058978965, 0.2967743977593879, 0.07318159263943219, 0.2108970885941138, 0.17208893436731565, 0.10085237378047572, 0.031683893234003335, -0.031375781555349626, 0.026885883313500218, -0.22563420707269366, 0.08499265185350345, 0.2752158894274746, 0.046391555767816804, 0.11242134307718112, -0.33183819252169794, -0.14729100172149223, 0.08652875877709852, 0.10494817659168297, 0.0388124006244147, -0.07654841985721658, -0.22467315326341325, 0.12209584423625428, -0.18565876906116804, -0.11379907667772689, -0.008846172374129916, 0.05294675919382522, 0.1088579351392885, -0.2830486191457264, 0.07921444087858415, -0.0028372344289285443, 0.14857636468433258, -0.04768287899140786, -0.2553898994277309, -0.06899738337314273, 0.06570342128785948, 0.05452866912431394, 0.009124545245059481, 0.18153287892669645, -0.07696268817461613, -0.07995884518863426, 0.4130953690295832, 0.006168814867527949, -0.12705411645058323, 0.14529615475718552, -0.1918273885708509, -0.13789084503271928, 0.18012073430387923, 0.25185006177828956, 0.16552083763397402, -0.1305779502921117, 0.01843849064041731, -0.0028011180822634036, 0.1321936913817707, 0.11361385906477356, -0.023468167513783555, 0.09433565032668412, 0.18473831126983795, 0.05949668884972602, 0.03812690132569211, -0.12091519801955049, -0.0341200205600924, -0.3181858159756909, -0.07443095800570315, -0.0764940161154502, 0.08608234786434979, -0.07206456306832681, -0.03870623040064755, 0.38620952346051735, 0.02258765231171209, 0.2738367008536847, 0.03182944038093814, 0.22714398071386516, 0.06343010922804145, 0.049932324573294155, 0.08825063762358493, 0.24996049403368184, 0.17001314813064206, 0.164904259559181, -0.21020356847697663, 0.07545076579683357, 0.007438743409390251] |
708.2822 | The high mass end of the Tully-Fisher relation | We study the location of massive disk galaxies on the Tully-Fisher relation.
Using a combination of K-band photometry and high-quality rotation curves, we
show that in traditional formulations of the TF relation (using the width of
the global HI profile or the maximum rotation velocity), galaxies with rotation
velocities larger than 200 km/s lie systematically to the right of the relation
defined by less massive systems, causing a characteristic `kink' in the
relations. Massive, early-type disk galaxies in particular have a large offset,
up to 1.5 magnitudes, from the main relation defined by less massive and
later-type spirals.
The presence of a change in slope at the high-mass end of the Tully-Fisher
relation has important consequences for the use of the Tully-Fisher relation as
a tool for estimating distances to galaxies or for probing galaxy evolution. In
particular, the luminosity evolution of massive galaxies since z = 1 may have
been significantly larger than estimated in several recent studies.
We also show that many of the galaxies with the largest offsets have
declining rotation curves and that the change in slope largely disappears when
we use the asymptotic rotation velocity as kinematic parameter. The remaining
deviations from linearity can be removed when we simultaneously use the total
baryonic mass (stars + gas) instead of the optical or near-infrared luminosity.
Our results strengthen the view that the Tully-Fisher relation fundamentally
links the mass of dark matter haloes with the total baryonic mass embedded in
them.
| astro-ph | we study the location of massive disk galaxies on the tullyfisher relation using a combination of kband photometry and highquality rotation curves we show that in traditional formulations of the tf relation using the width of the global hi profile or the maximum rotation velocity galaxies with rotation velocities larger than 200 kms lie systematically to the right of the relation defined by less massive systems causing a characteristic kink in the relations massive earlytype disk galaxies in particular have a large offset up to 15 magnitudes from the main relation defined by less massive and latertype spirals the presence of a change in slope at the highmass end of the tullyfisher relation has important consequences for the use of the tullyfisher relation as a tool for estimating distances to galaxies or for probing galaxy evolution in particular the luminosity evolution of massive galaxies since z 1 may have been significantly larger than estimated in several recent studies we also show that many of the galaxies with the largest offsets have declining rotation curves and that the change in slope largely disappears when we use the asymptotic rotation velocity as kinematic parameter the remaining deviations from linearity can be removed when we simultaneously use the total baryonic mass stars gas instead of the optical or nearinfrared luminosity our results strengthen the view that the tullyfisher relation fundamentally links the mass of dark matter haloes with the total baryonic mass embedded in them | [['we', 'study', 'the', 'location', 'of', 'massive', 'disk', 'galaxies', 'on', 'the', 'tullyfisher', 'relation', 'using', 'a', 'combination', 'of', 'kband', 'photometry', 'and', 'highquality', 'rotation', 'curves', 'we', 'show', 'that', 'in', 'traditional', 'formulations', 'of', 'the', 'tf', 'relation', 'using', 'the', 'width', 'of', 'the', 'global', 'hi', 'profile', 'or', 'the', 'maximum', 'rotation', 'velocity', 'galaxies', 'with', 'rotation', 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708.2823 | Bedforms in a turbulent stream.Part 1: Turbulent flow over topography | In the context of subaqueous ripple and dune formation, we present here a
Reynolds averaged calculation of the turbulent flow over a topography. We
perform a weakly non-linear expansion of the velocity field, sufficiently
accurate to recover the separation of streamlines and the formation of a
recirculation bubble above some aspect ratio. The basal stresses are
investigated in details; in particular, we show that the phase shift of the
shear stress with respect to the topography, responsible for the formation of
bedforms, appears in an inner boundary layer where shear stress and pressure
gradients balance. We study the sensitivity of the calculation with respect to
(i) the choice of the turbulence closure, (ii) the motion of the bottom (growth
or propagation), (iii) the physics at work in the surface layer, responsible
for the hydrodynamic roughness of the bottom, (iv) the aspect ratio of the
bedform and (v) the effect of the free surface, which can be interpreted in
terms of standing gravity waves excited by topography. The most important
effects are those of points (iii) to (v). We show that the dynamical mechanisms
controlling the hydrodynamical roughness (mixing due to roughness elements,
viscosity, sediment transport, etc) have an influence on the basal shear stress
when the thickness of the surface layer is comparable to that of the inner
layer. We evidence that non-linear effects tend to oppose linear ones and are
of the same order for bedform aspect ratios of the order of 1/10. We show that
the influence of the free surface on the basal shear stress is dominant when
the wavelength is large compared to the flow depth, so that the inner layer
extends throughout the flow and in the resonant conditions, and when the
downstream material velocity balances the upstream wave propagation.
| cond-mat.soft | in the context of subaqueous ripple and dune formation we present here a reynolds averaged calculation of the turbulent flow over a topography we perform a weakly nonlinear expansion of the velocity field sufficiently accurate to recover the separation of streamlines and the formation of a recirculation bubble above some aspect ratio the basal stresses are investigated in details in particular we show that the phase shift of the shear stress with respect to the topography responsible for the formation of bedforms appears in an inner boundary layer where shear stress and pressure gradients balance we study the sensitivity of the calculation with respect to i the choice of the turbulence closure ii the motion of the bottom growth or propagation iii the physics at work in the surface layer responsible for the hydrodynamic roughness of the bottom iv the aspect ratio of the bedform and v the effect of the free surface which can be interpreted in terms of standing gravity waves excited by topography the most important effects are those of points iii to v we show that the dynamical mechanisms controlling the hydrodynamical roughness mixing due to roughness elements viscosity sediment transport etc have an influence on the basal shear stress when the thickness of the surface layer is comparable to that of the inner layer we evidence that nonlinear effects tend to oppose linear ones and are of the same order for bedform aspect ratios of the order of 110 we show that the influence of the free surface on the basal shear stress is dominant when the wavelength is large compared to the flow depth so that the inner layer extends throughout the flow and in the resonant conditions and when the downstream material velocity balances the upstream wave propagation | [['in', 'the', 'context', 'of', 'subaqueous', 'ripple', 'and', 'dune', 'formation', 'we', 'present', 'here', 'a', 'reynolds', 'averaged', 'calculation', 'of', 'the', 'turbulent', 'flow', 'over', 'a', 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708.2824 | Cosmology with Galaxy Correlations | In this review, I outline the use of galaxy correlations to constrain
cosmological parameters. As with the Cosmic Microwave Background (CMB), the
density of dark and baryonic matter imprints important scales on the
fluctuations of matter and thus the clustering of galaxies, e.g., the particle
horizon at matter--radiation equality and the sound horizon at recombination.
Precision measurements of these scales from the Baryon Acoustic Oscillations
(BAO) and the large scale shape of the power spectrum of galaxy clustering
provide constraints on Omega_m h^2. Recent measurements from the Sloan Digital
Sky Survey (SDSS) and 2dF Galaxy Redshift Survey (2dFGRS) strongly suggest that
Omega_m < 0.3. This forms the basic evidence for a flat Universe dominated by a
Cosmological Constant (Lambda) today (when combined with results from the CMB
and supernova surveys). Further evidence for this cosmological model is
provided by the late-time Integrated Sachs-Wolfe (ISW) effect, which has now
been detected using a variety of tracers of the large scale structure in the
Universe out to redshifts of z>1. The ISW effect also provides an opportunity
to discriminate between Lambda, dynamical dark energy models and the
modification of gravity on large scales.
| astro-ph | in this review i outline the use of galaxy correlations to constrain cosmological parameters as with the cosmic microwave background cmb the density of dark and baryonic matter imprints important scales on the fluctuations of matter and thus the clustering of galaxies eg the particle horizon at matterradiation equality and the sound horizon at recombination precision measurements of these scales from the baryon acoustic oscillations bao and the large scale shape of the power spectrum of galaxy clustering provide constraints on omega_m h2 recent measurements from the sloan digital sky survey sdss and 2df galaxy redshift survey 2dfgrs strongly suggest that omega_m 03 this forms the basic evidence for a flat universe dominated by a cosmological constant lambda today when combined with results from the cmb and supernova surveys further evidence for this cosmological model is provided by the latetime integrated sachswolfe isw effect which has now been detected using a variety of tracers of the large scale structure in the universe out to redshifts of z1 the isw effect also provides an opportunity to discriminate between lambda dynamical dark energy models and the modification of gravity on large scales | [['in', 'this', 'review', 'i', 'outline', 'the', 'use', 'of', 'galaxy', 'correlations', 'to', 'constrain', 'cosmological', 'parameters', 'as', 'with', 'the', 'cosmic', 'microwave', 'background', 'cmb', 'the', 'density', 'of', 'dark', 'and', 'baryonic', 'matter', 'imprints', 'important', 'scales', 'on', 'the', 'fluctuations', 'of', 'matter', 'and', 'thus', 'the', 'clustering', 'of', 'galaxies', 'eg', 'the', 'particle', 'horizon', 'at', 'matterradiation', 'equality', 'and', 'the', 'sound', 'horizon', 'at', 'recombination', 'precision', 'measurements', 'of', 'these', 'scales', 'from', 'the', 'baryon', 'acoustic', 'oscillations', 'bao', 'and', 'the', 'large', 'scale', 'shape', 'of', 'the', 'power', 'spectrum', 'of', 'galaxy', 'clustering', 'provide', 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708.2825 | Apollo asteroids (1566) Icarus and 2007 MK6: Icarus family members? | Although it is more complicated to search for near-Earth object (NEO)
families than main belt asteroid (MBA) families, since differential orbital
evolution within a NEO family can cause current orbital elements to drastically
differ from each other, we have found that Apollo asteroids (1566) Icarus and
the newly discovered 2007 MK6 are almost certainly related. Specifically, their
orbital evolutions show a similar profile, time shifted by only ~1000 yr, based
on our time-lag theory. The dynamical relationship between Icarus and 2007 MK6
along with a possible dust band, the Taurid-Perseid meteor swarm, implies the
first detection of an asteroidal NEO family, namely the "Icarus asteroid
family".
| astro-ph | although it is more complicated to search for nearearth object neo families than main belt asteroid mba families since differential orbital evolution within a neo family can cause current orbital elements to drastically differ from each other we have found that apollo asteroids 1566 icarus and the newly discovered 2007 mk6 are almost certainly related specifically their orbital evolutions show a similar profile time shifted by only 1000 yr based on our timelag theory the dynamical relationship between icarus and 2007 mk6 along with a possible dust band the tauridperseid meteor swarm implies the first detection of an asteroidal neo family namely the icarus asteroid family | [['although', 'it', 'is', 'more', 'complicated', 'to', 'search', 'for', 'nearearth', 'object', 'neo', 'families', 'than', 'main', 'belt', 'asteroid', 'mba', 'families', 'since', 'differential', 'orbital', 'evolution', 'within', 'a', 'neo', 'family', 'can', 'cause', 'current', 'orbital', 'elements', 'to', 'drastically', 'differ', 'from', 'each', 'other', 'we', 'have', 'found', 'that', 'apollo', 'asteroids', '1566', 'icarus', 'and', 'the', 'newly', 'discovered', '2007', 'mk6', 'are', 'almost', 'certainly', 'related', 'specifically', 'their', 'orbital', 'evolutions', 'show', 'a', 'similar', 'profile', 'time', 'shifted', 'by', 'only', '1000', 'yr', 'based', 'on', 'our', 'timelag', 'theory', 'the', 'dynamical', 'relationship', 'between', 'icarus', 'and', '2007', 'mk6', 'along', 'with', 'a', 'possible', 'dust', 'band', 'the', 'tauridperseid', 'meteor', 'swarm', 'implies', 'the', 'first', 'detection', 'of', 'an', 'asteroidal', 'neo', 'family', 'namely', 'the', 'icarus', 'asteroid', 'family']] | [-0.08742825589165344, 0.15745432346110408, -0.113142897646187, 0.06568540553607553, -0.09462678773798844, -0.048744523663806175, 0.02217134084095907, 0.37479015262526216, -0.1941160457073123, -0.4024954242812632, 0.06123090138912056, -0.29320034055599886, -0.14403125482783155, 0.2231353976497047, -0.15522416591309735, 0.04535577322347361, 0.14496495577425345, -0.04219896632056792, -0.047179194372395976, -0.2605982257066819, 0.24654975882957428, 0.07921755124670136, 0.11149479264000123, -0.08498108602644315, 0.06880154304638125, -0.02739245046237574, -0.02857498719709591, -0.05912293952175425, -0.15620147613436944, 0.09991917881698718, 0.20803974444064702, 0.1370000298026479, 0.15986224223669726, -0.31000603800096993, -0.1734872231490512, 0.08381057134151314, 0.1090887553800006, 0.05350657251383205, -0.042403921918537764, -0.33223164418499773, 0.03774688301553714, -0.2630761562783307, -0.18224817857562195, 0.032428599749375314, 0.1585560593193451, 0.029318815079128858, -0.16978918750616676, 0.030090829740658187, 0.08321325464069039, 0.12926767904591718, -0.1352247523959925, -0.20897266477599596, -0.10590863359404855, 0.06034471637126312, 0.06916043921418995, 0.019018437507679883, 0.12427278672733787, 0.03787275940830846, -0.09433561202378274, 0.4152054111569333, -0.04303076606680689, -0.030381685371501644, 0.23686657068590877, -0.1559052169187338, -0.14300189621167855, 0.19686855561127073, 0.18274076405948805, 0.13491431777410715, -0.19752416092884337, 0.007558811509086597, -0.06322089583585852, 0.20787019486588795, 0.13027379002413053, 0.006216209291399104, 0.29978061947989665, 0.12193389113786748, 0.10027539702267974, 0.05160341313554119, -0.18019713070560067, -0.12172761725462991, -0.16592541059424865, -0.12722601927138721, -0.1429418908992728, 0.037176240355373154, -0.05066064471300936, -0.1466505641967637, 0.3857833301576162, 0.1589230404696563, 0.160879540363399, 0.02081534532305685, 0.2045186786523577, 0.020092533771355538, 0.0723908731998713, 0.13768196362974935, 0.3453710601547534, 0.045094508092253675, 0.06888819696128513, -0.2051341993060614, 0.16830788119537846, 0.046041539255348804] |
708.2826 | Magnetic and transport properties of the one-dimensional ferromagnetic
Kondo lattice model with an impurity | We have studied the ferromagnetic Kondo lattice model (FKLM) with an Anderson
impurity on finite chains with numerical techniques. We are particularly
interested in the metallic ferromagnetic phase of the FKLM. This model could
describe either a quantum dot coupled to one-dimensional ferromagnetic leads
made with manganites or a substitutional transition metal impurity in a MnO
chain. We determined the region in parameter space where the impurity is empty,
half-filled or doubly-occupied and hence where it is magnetic or nonmagnetic.
The most important result is that we found, for a wide range of impurity
parameters and electron densities where the impurity is magnetic, a singlet
phase located between two saturated ferromagnetic phases which correspond
approximately to the empty and double-occupied impurity states. Transport
properties behave in general as expected as a function of the impurity
occupancy and they provide a test for a recently developed numerical approach
to compute the conductance. The results obtained could be in principle
reproduced experimentally in already existent related nanoscopic devices or in
impurity doped MnO nanotubes.
| cond-mat.str-el | we have studied the ferromagnetic kondo lattice model fklm with an anderson impurity on finite chains with numerical techniques we are particularly interested in the metallic ferromagnetic phase of the fklm this model could describe either a quantum dot coupled to onedimensional ferromagnetic leads made with manganites or a substitutional transition metal impurity in a mno chain we determined the region in parameter space where the impurity is empty halffilled or doublyoccupied and hence where it is magnetic or nonmagnetic the most important result is that we found for a wide range of impurity parameters and electron densities where the impurity is magnetic a singlet phase located between two saturated ferromagnetic phases which correspond approximately to the empty and doubleoccupied impurity states transport properties behave in general as expected as a function of the impurity occupancy and they provide a test for a recently developed numerical approach to compute the conductance the results obtained could be in principle reproduced experimentally in already existent related nanoscopic devices or in impurity doped mno nanotubes | [['we', 'have', 'studied', 'the', 'ferromagnetic', 'kondo', 'lattice', 'model', 'fklm', 'with', 'an', 'anderson', 'impurity', 'on', 'finite', 'chains', 'with', 'numerical', 'techniques', 'we', 'are', 'particularly', 'interested', 'in', 'the', 'metallic', 'ferromagnetic', 'phase', 'of', 'the', 'fklm', 'this', 'model', 'could', 'describe', 'either', 'a', 'quantum', 'dot', 'coupled', 'to', 'onedimensional', 'ferromagnetic', 'leads', 'made', 'with', 'manganites', 'or', 'a', 'substitutional', 'transition', 'metal', 'impurity', 'in', 'a', 'mno', 'chain', 'we', 'determined', 'the', 'region', 'in', 'parameter', 'space', 'where', 'the', 'impurity', 'is', 'empty', 'halffilled', 'or', 'doublyoccupied', 'and', 'hence', 'where', 'it', 'is', 'magnetic', 'or', 'nonmagnetic', 'the', 'most', 'important', 'result', 'is', 'that', 'we', 'found', 'for', 'a', 'wide', 'range', 'of', 'impurity', 'parameters', 'and', 'electron', 'densities', 'where', 'the', 'impurity', 'is', 'magnetic', 'a', 'singlet', 'phase', 'located', 'between', 'two', 'saturated', 'ferromagnetic', 'phases', 'which', 'correspond', 'approximately', 'to', 'the', 'empty', 'and', 'doubleoccupied', 'impurity', 'states', 'transport', 'properties', 'behave', 'in', 'general', 'as', 'expected', 'as', 'a', 'function', 'of', 'the', 'impurity', 'occupancy', 'and', 'they', 'provide', 'a', 'test', 'for', 'a', 'recently', 'developed', 'numerical', 'approach', 'to', 'compute', 'the', 'conductance', 'the', 'results', 'obtained', 'could', 'be', 'in', 'principle', 'reproduced', 'experimentally', 'in', 'already', 'existent', 'related', 'nanoscopic', 'devices', 'or', 'in', 'impurity', 'doped', 'mno', 'nanotubes']] | [-0.12272925168001039, 0.22659077540895872, 0.0017041830064425635, 0.07920353839290328, 0.007105304602381968, -0.23545350375866822, 0.07920709025956756, 0.4088429748527381, -0.23694547641613564, -0.267690633835141, 0.028153227223218745, -0.33377631673816766, -0.09212815187814602, 0.13694363389554065, 0.04724300124118684, -0.0039974183426154, -0.005953541229584601, 0.0003700134370457056, -0.09741125742127837, -0.21879790153159479, 0.262586759192176, -0.00875398873007683, 0.2568683469408127, 0.09149515138516678, -0.00042682145126597134, 0.03083317733348109, 0.15360808879851776, 0.0707022750756614, -0.15533297574899713, 0.03607066290630407, 0.2958224062526295, -0.10790435244894599, 0.2042196178862955, -0.4645181598769891, -0.19433167001210847, 0.03552752899866941, 0.17120763019277568, 0.15983366482920924, -0.08079814138418864, -0.2919374137391271, 0.03262556094316181, -0.17513090138442727, -0.1291862419727062, -0.04767614033419725, -0.03476498353154247, 0.00048174529688050065, -0.28851756096687603, 0.07622277562785353, 0.045673313987885364, 0.046331647284014885, -0.07725504737018762, -0.10659420664007992, -0.06257334926577154, 0.063912877222783, 0.021759643651231, 0.030745856124815684, 0.1553125421294596, -0.07598365235093678, -0.10851855575767627, 0.37418593058016064, -0.06055680433894659, -0.14443929996771257, 0.1886659350238069, -0.17637668036035772, -0.069362768889838, 0.11636256965061346, 0.09128807259041297, 0.11425225455368068, -0.14860032682122967, 0.11376221250975505, -0.050874623965450325, 0.16631263820437558, -0.0018215850415249724, 0.05763800237442876, 0.25533506358150654, 0.21243082312596312, 0.05959567110065024, 0.1730454926586136, -0.11503625451993241, -0.12078408728526949, -0.18826326125756251, -0.17454872822231982, -0.24858534031109017, 0.04850278572493428, -0.05081640131098792, -0.24250382305729354, 0.37665129835489963, 0.14630254704033982, 0.1910350153839952, -0.08349777351412381, 0.20456322635859683, 0.13132884332417447, 0.03508774148094533, 0.037729227100498974, 0.2116972058557981, 0.1500332631660777, 0.0895003267894851, -0.27159464012135665, 0.0672402724997292, 0.04555758879436072] |
708.2827 | Brown dwarf formation by gravitational fragmentation of massive,
extended protostellar discs | We suggest that low-mass hydrogen-burning stars like the Sun should sometimes
form with massive extended discs; and we show, by means of radiation
hydrodynamic simulations, that the outer parts of such discs (R>100 AU) are
likely to fragment on a dynamical timescale (10^3 to $10^4 yr), forming
low-mass companions: principally brown dwarfs (BDs), but also very low-mass
hydrogen-burning stars and planetary-mass objects. A few of the BDs formed in
this way remain attached to the primary star, orbiting at large radii. The
majority are released into the field, by interactions amongst themselves; in so
doing they acquire only a low velocity dispersion (<2 km/s), and therefore they
usually retain small discs, capable of registering an infrared excess and
sustaining accretion. Some BDs form close BD/BD binaries, and these binaries
can survive ejection into the field. This BD formation mechanism appears to
avoid some of the problems associated with the `embryo ejection' scenario, and
to answer some of the questions not yet answered by the `turbulent
fragmentation' scenario.
| astro-ph | we suggest that lowmass hydrogenburning stars like the sun should sometimes form with massive extended discs and we show by means of radiation hydrodynamic simulations that the outer parts of such discs r100 au are likely to fragment on a dynamical timescale 103 to 104 yr forming lowmass companions principally brown dwarfs bds but also very lowmass hydrogenburning stars and planetarymass objects a few of the bds formed in this way remain attached to the primary star orbiting at large radii the majority are released into the field by interactions amongst themselves in so doing they acquire only a low velocity dispersion 2 kms and therefore they usually retain small discs capable of registering an infrared excess and sustaining accretion some bds form close bdbd binaries and these binaries can survive ejection into the field this bd formation mechanism appears to avoid some of the problems associated with the embryo ejection scenario and to answer some of the questions not yet answered by the turbulent fragmentation scenario | [['we', 'suggest', 'that', 'lowmass', 'hydrogenburning', 'stars', 'like', 'the', 'sun', 'should', 'sometimes', 'form', 'with', 'massive', 'extended', 'discs', 'and', 'we', 'show', 'by', 'means', 'of', 'radiation', 'hydrodynamic', 'simulations', 'that', 'the', 'outer', 'parts', 'of', 'such', 'discs', 'r100', 'au', 'are', 'likely', 'to', 'fragment', 'on', 'a', 'dynamical', 'timescale', '103', 'to', '104', 'yr', 'forming', 'lowmass', 'companions', 'principally', 'brown', 'dwarfs', 'bds', 'but', 'also', 'very', 'lowmass', 'hydrogenburning', 'stars', 'and', 'planetarymass', 'objects', 'a', 'few', 'of', 'the', 'bds', 'formed', 'in', 'this', 'way', 'remain', 'attached', 'to', 'the', 'primary', 'star', 'orbiting', 'at', 'large', 'radii', 'the', 'majority', 'are', 'released', 'into', 'the', 'field', 'by', 'interactions', 'amongst', 'themselves', 'in', 'so', 'doing', 'they', 'acquire', 'only', 'a', 'low', 'velocity', 'dispersion', '2', 'kms', 'and', 'therefore', 'they', 'usually', 'retain', 'small', 'discs', 'capable', 'of', 'registering', 'an', 'infrared', 'excess', 'and', 'sustaining', 'accretion', 'some', 'bds', 'form', 'close', 'bdbd', 'binaries', 'and', 'these', 'binaries', 'can', 'survive', 'ejection', 'into', 'the', 'field', 'this', 'bd', 'formation', 'mechanism', 'appears', 'to', 'avoid', 'some', 'of', 'the', 'problems', 'associated', 'with', 'the', 'embryo', 'ejection', 'scenario', 'and', 'to', 'answer', 'some', 'of', 'the', 'questions', 'not', 'yet', 'answered', 'by', 'the', 'turbulent', 'fragmentation', 'scenario']] | [-0.1283204653197523, 0.2144084858024405, -0.06769374874986855, 0.14939946674150667, -0.11991020294413818, -0.07090383765920662, 0.05248279925045407, 0.3610440628090037, -0.18274350808780015, -0.36315504036018414, 0.05469091375034949, -0.24728955029549, -0.05535653002318246, 0.16831488011008922, -0.08491896441928529, -0.03195996506106175, 0.13737715671360382, -0.03565558142441431, -0.015488125616684556, -0.266772057649172, 0.32434661176144897, 0.057405966897299904, 0.03549430896890556, -0.03594905953707235, 0.020620557457253247, -0.12086329655721784, -0.012798843144098977, -0.039516155212046856, -0.17141403222896096, 0.009018594881486215, 0.25252364233727315, 0.11700700828352452, 0.2524619816020298, -0.40310398575676953, -0.18641444535237253, 0.03944858043694389, 0.238440760139454, 0.022932921382905303, -0.08453679579508094, -0.2639975750429868, 0.1402208617017716, -0.21064252300957542, -0.17182341366058249, 0.0031515116677696196, 0.05456051144687581, -0.01732926200908012, -0.2225581377069884, 0.09475608220763788, 0.10327024951568124, 0.02693394270396518, -0.11006970167812517, -0.09787292445836934, -0.04712112322393917, 0.06827025319948725, 0.05878207693176537, 0.050581201640498674, 0.2110457642611763, -0.14537105987874602, 0.014255064329087824, 0.40648314855647033, -0.03858918905422694, -0.07150872529646059, 0.30458078179703635, -0.24517712827693827, -0.15492254665294317, 0.19284444947832982, 0.14657689286897818, 0.1700411823879325, -0.16597239349684315, -0.04343852518920363, -0.004219190991333056, 0.17035386391251744, 0.11405446408260725, 0.07232992025371084, 0.42850911274864645, 0.10788539218005981, -0.030565839583572826, 0.05684502691889327, -0.16412489277256295, -0.08478723067098749, -0.18962880790590525, -0.1116397014943169, -0.10305395321802008, 0.07694556800278063, -0.07026156440846382, -0.13925213655066526, 0.24847950537070007, 0.10537319542968389, 0.2419823221304638, 0.034300166123663774, 0.293954113397948, 0.06358603775657401, 0.1633205344666264, 0.15327881639656013, 0.2977998953918762, 0.17050429463001737, 0.09431300126852657, -0.20740846470890645, 0.06682538056695934, -0.011601342754103912] |
708.2828 | Characterizations of Hankel multipliers | We give characterizations of radial Fourier multipliers as acting on radial
L^p-functions, 1<p<2d/(d+1), in terms of Lebesgue space norms for Fourier
localized pieces of the convolution kernel. This is a special case of
corresponding results for general Hankel multipliers. Besides L^p-L^q bounds we
also characterize weak type inequalities and intermediate inequalities
involving Lorentz spaces. Applications include results on interpolation of
multiplier spaces.
| math.CA | we give characterizations of radial fourier multipliers as acting on radial lpfunctions 1p2dd1 in terms of lebesgue space norms for fourier localized pieces of the convolution kernel this is a special case of corresponding results for general hankel multipliers besides lplq bounds we also characterize weak type inequalities and intermediate inequalities involving lorentz spaces applications include results on interpolation of multiplier spaces | [['we', 'give', 'characterizations', 'of', 'radial', 'fourier', 'multipliers', 'as', 'acting', 'on', 'radial', 'lpfunctions', '1p2dd1', 'in', 'terms', 'of', 'lebesgue', 'space', 'norms', 'for', 'fourier', 'localized', 'pieces', 'of', 'the', 'convolution', 'kernel', 'this', 'is', 'a', 'special', 'case', 'of', 'corresponding', 'results', 'for', 'general', 'hankel', 'multipliers', 'besides', 'lplq', 'bounds', 'we', 'also', 'characterize', 'weak', 'type', 'inequalities', 'and', 'intermediate', 'inequalities', 'involving', 'lorentz', 'spaces', 'applications', 'include', 'results', 'on', 'interpolation', 'of', 'multiplier', 'spaces']] | [-0.09527656243594944, 0.07808816732770046, -0.056874945859012545, 0.1583872560839184, -0.12017962668610156, -0.09229425442420312, -0.03301672219512526, 0.3751556598505036, -0.28474432735352734, -0.12388864038970138, 0.1866355771408798, -0.25456404764220486, -0.12770300563119474, 0.31692267702434396, -0.10941877611531098, 0.07795483847225054, 0.037852771603120644, 0.013174701130903159, -0.22884499025149424, -0.26569472120494625, 0.40907334988234473, -0.0586794393259238, 0.1825801829853263, 0.03656700375627299, 0.05687920017870235, 0.04443654545475958, -0.07988674079113808, -0.0607759499408068, -0.19337350362148442, 0.1846854823019325, 0.22403195234717893, 0.08103329030277788, 0.30115473256675435, -0.4078598600491637, -0.1439700762733634, 0.15757726154244336, 0.15308656193102238, -0.08055533372537522, -0.07300448923402267, -0.3184364665505766, 0.002924907189167914, -0.08578020889983802, -0.16215485002326427, -0.19606058216333144, 0.015770053842150775, 0.14153860628482748, -0.37903992614907317, 0.12386194981022006, 0.11297406371946248, 0.05468878758781147, -0.18810953447770815, -0.143193077080364, 0.08529934923729447, 0.04283937699634765, 0.017487441827008714, -0.03191497657051096, 0.08625362024138697, -0.008850487796437056, -0.12085799880509006, 0.297535060065203, -0.06115740559018049, -0.3162255861002524, 0.14934706504525402, -0.1894348409545959, -0.16195970257652587, 0.032855537599792366, 0.1778861073945023, 0.1448474114626688, -0.07009252058017663, 0.19632622845696102, -0.10621351672366994, 0.060408167724238064, 0.16891968770899246, 0.16943889656046893, -0.00457563084840286, 0.009693831922944452, 0.22774957844101992, 0.16564351311583286, -0.04424597899292092, -0.02595334080788383, -0.4046267422038268, -0.22976841234037135, -0.2172186710398461, 0.019769081036697646, -0.17552199435289606, -0.20984802353692042, 0.3981375064868785, 0.006880029745888514, 0.1340607766397908, 0.10348856875092768, 0.2192064674845973, 0.13761790690477937, 0.08144535527366106, 0.019129423852093885, 0.1715321141890571, 0.2587801803697328, 0.1217452063545829, -0.11309426977894589, -0.01667922226040334, 0.3112324402194287] |
708.2829 | Effective action for the field equations of charged black holes | In this article, we consistently reduce the equations of motion for the
bosonic N = 2 supergravity action, using a multi-centered black hole ansatz for
the metric. This reduction is done in a general, non-supersymmetric setup, in
which we extend concepts of BPS black hole technology. First of all we obtain a
more general form of the black hole potential, as part of an effective action
for both the scalars and the vectors in the supergravity theory. Furthermore,
we show that there are extra constraints specifying the solution, which we
calculate explicitly. In the literature, these constraints have already been
studied in the one-center case. We also show that the effective action we
obtain for non-static metrics, can be linked to the "entropy function" for the
spherically symmetric case, as defined by Sen and Cardoso et al.
| hep-th | in this article we consistently reduce the equations of motion for the bosonic n 2 supergravity action using a multicentered black hole ansatz for the metric this reduction is done in a general nonsupersymmetric setup in which we extend concepts of bps black hole technology first of all we obtain a more general form of the black hole potential as part of an effective action for both the scalars and the vectors in the supergravity theory furthermore we show that there are extra constraints specifying the solution which we calculate explicitly in the literature these constraints have already been studied in the onecenter case we also show that the effective action we obtain for nonstatic metrics can be linked to the entropy function for the spherically symmetric case as defined by sen and cardoso et al | [['in', 'this', 'article', 'we', 'consistently', 'reduce', 'the', 'equations', 'of', 'motion', 'for', 'the', 'bosonic', 'n', '2', 'supergravity', 'action', 'using', 'a', 'multicentered', 'black', 'hole', 'ansatz', 'for', 'the', 'metric', 'this', 'reduction', 'is', 'done', 'in', 'a', 'general', 'nonsupersymmetric', 'setup', 'in', 'which', 'we', 'extend', 'concepts', 'of', 'bps', 'black', 'hole', 'technology', 'first', 'of', 'all', 'we', 'obtain', 'a', 'more', 'general', 'form', 'of', 'the', 'black', 'hole', 'potential', 'as', 'part', 'of', 'an', 'effective', 'action', 'for', 'both', 'the', 'scalars', 'and', 'the', 'vectors', 'in', 'the', 'supergravity', 'theory', 'furthermore', 'we', 'show', 'that', 'there', 'are', 'extra', 'constraints', 'specifying', 'the', 'solution', 'which', 'we', 'calculate', 'explicitly', 'in', 'the', 'literature', 'these', 'constraints', 'have', 'already', 'been', 'studied', 'in', 'the', 'onecenter', 'case', 'we', 'also', 'show', 'that', 'the', 'effective', 'action', 'we', 'obtain', 'for', 'nonstatic', 'metrics', 'can', 'be', 'linked', 'to', 'the', 'entropy', 'function', 'for', 'the', 'spherically', 'symmetric', 'case', 'as', 'defined', 'by', 'sen', 'and', 'cardoso', 'et', 'al']] | [-0.11289066532952026, 0.06361174863270529, -0.05413248373181833, 0.10644157880126252, -0.055044223694815576, -0.12007174692981233, 0.00830008128147764, 0.3105945788693669, -0.16109888030298272, -0.2911703964996645, 0.09939276266617098, -0.27874989103635445, -0.1907625199511291, 0.1721311102840392, -0.08210878395338488, 0.046182030710042454, -0.01788930329049061, 0.0568675238344654, -0.10842119752744432, -0.28659192917813714, 0.36307514660567153, 0.029295735831564182, 0.23402172845089808, 0.03866315498324933, 0.10204190987175987, 0.008332448868553484, 0.010206216740805437, 0.06731459826422746, -0.14947409969671058, 0.12448568254459293, 0.23007063573630362, 0.14367050767989842, 0.17807097076986203, -0.4166627379052122, -0.2493141996263362, 0.09250538590062848, 0.1568783140529002, 0.1984267634432078, -0.06751731508259529, -0.26043909680276345, 0.10368769989444819, -0.2544634686782956, -0.14013042888152138, -0.09385261919541175, 0.06155881064478308, -0.05596520336385926, -0.26155525972032645, 0.07014162338836126, 0.06698868405210841, -0.03214451995582374, -0.13839438717524685, -0.07262856300119036, -0.021071241581333142, 0.10489300861338373, 0.08860746246885837, 0.03523946192238808, 0.09014373304500409, -0.1295241167446126, -0.12452300690390128, 0.33608836585121665, -0.09176585562903818, -0.2596618074595052, 0.12193167536957737, -0.14530848887721626, -0.16848099475164952, 0.04626581771641641, 0.1504947780426044, 0.2223779147333356, -0.17856633343377754, 0.18244699169522124, -0.050914381678654426, 0.11507242720365278, 0.11085769670043032, 0.035451425332747234, 0.22861084774109153, 0.09633538866525188, 0.041193275836549754, 0.1709205153499223, -0.015352261446156156, -0.09957118444221766, -0.3439262122504742, -0.16575153660446898, -0.13491435030985433, 0.07150568965795066, -0.11225974293719286, -0.14687398556784234, 0.3534548554538667, 0.12659896870130016, 0.18431134418899411, 0.0482472236668828, 0.22019887054065132, 0.12711034570512472, 0.04497032449238331, 0.10308325022582293, 0.2946969607463175, 0.08440746823223033, 0.08792388165260062, -0.21229674979044563, -0.06919170856503222, 0.13557218512527042] |
708.283 | Symmetry Energy as a Function of Density and Mass | Energy in nuclear matter is, in practice, completely characterized at
different densities and asymmetries, when the density dependencies of symmetry
energy and of energy of symmetric matter are specified. The density dependence
of the symmetry energy at subnormal densities produces mass dependence of
nuclear symmetry coefficient and, thus, can be constrained by that latter
dependence. We deduce values of the mass dependent symmetry coefficients, by
using excitation energies to isobaric analog states. The coefficient
systematic, for intermediate and high masses, is well described in terms of the
symmetry coefficient values of a_a^V=(31.5-33.5) MeV for the volume coefficient
and a_a^S=(9-12) MeV for the surface coefficient. These two further correspond
to the parameter values describing density dependence of symmetry energy, of
L~95 MeV and K_{sym}~25 MeV.
| nucl-th | energy in nuclear matter is in practice completely characterized at different densities and asymmetries when the density dependencies of symmetry energy and of energy of symmetric matter are specified the density dependence of the symmetry energy at subnormal densities produces mass dependence of nuclear symmetry coefficient and thus can be constrained by that latter dependence we deduce values of the mass dependent symmetry coefficients by using excitation energies to isobaric analog states the coefficient systematic for intermediate and high masses is well described in terms of the symmetry coefficient values of a_av315335 mev for the volume coefficient and a_as912 mev for the surface coefficient these two further correspond to the parameter values describing density dependence of symmetry energy of l95 mev and k_sym25 mev | [['energy', 'in', 'nuclear', 'matter', 'is', 'in', 'practice', 'completely', 'characterized', 'at', 'different', 'densities', 'and', 'asymmetries', 'when', 'the', 'density', 'dependencies', 'of', 'symmetry', 'energy', 'and', 'of', 'energy', 'of', 'symmetric', 'matter', 'are', 'specified', 'the', 'density', 'dependence', 'of', 'the', 'symmetry', 'energy', 'at', 'subnormal', 'densities', 'produces', 'mass', 'dependence', 'of', 'nuclear', 'symmetry', 'coefficient', 'and', 'thus', 'can', 'be', 'constrained', 'by', 'that', 'latter', 'dependence', 'we', 'deduce', 'values', 'of', 'the', 'mass', 'dependent', 'symmetry', 'coefficients', 'by', 'using', 'excitation', 'energies', 'to', 'isobaric', 'analog', 'states', 'the', 'coefficient', 'systematic', 'for', 'intermediate', 'and', 'high', 'masses', 'is', 'well', 'described', 'in', 'terms', 'of', 'the', 'symmetry', 'coefficient', 'values', 'of', 'a_av315335', 'mev', 'for', 'the', 'volume', 'coefficient', 'and', 'a_as912', 'mev', 'for', 'the', 'surface', 'coefficient', 'these', 'two', 'further', 'correspond', 'to', 'the', 'parameter', 'values', 'describing', 'density', 'dependence', 'of', 'symmetry', 'energy', 'of', 'l95', 'mev', 'and', 'k_sym25', 'mev']] | [-0.09508404785320779, 0.2522367258625459, -0.06281551538219998, 0.07721707176163116, -0.030243952163064098, -0.06454103180661427, 0.014874340412168464, 0.3524923094121108, -0.22810520133588555, -0.3702472879605229, 0.0348679431115685, -0.26196997268664196, 0.004894143478436904, 0.1353722157587936, 0.07396063909765856, 0.04254260687058895, -0.043925261488646145, 0.05213367225879357, -0.14843998617523405, -0.1482020535829577, 0.3384387133073462, 0.08979154522877095, 0.2842339248173247, 0.16428736264024638, 0.09693467433464305, 0.004847518462795487, 0.028585265910114385, -0.016393545422364365, -0.1672440595920164, 0.05857400892231198, 0.26868715543446153, -0.02647683944712847, 0.13541930689176251, -0.3622113363124615, -0.19209373024992707, 0.1052569394492475, 0.08007376803054421, 0.07238604535525742, -0.045277234460544685, -0.23619333369857518, 0.05968047990963971, -0.1860404059056131, -0.18429331242468608, -0.08631899527250982, 0.03144695823781254, 0.035716340053549483, -0.29431646409606144, 0.2532444865142634, -0.01302980202777419, 0.04133959394597741, -0.106028360312743, -0.19396041137404924, -0.09539580635133792, 0.040485620947722116, 0.10357351240524945, -0.03930133346021791, 0.16386589128716486, -0.15132943554858347, -0.022137605035793005, 0.3621587288866112, -0.043917018579596206, -0.164777080920979, 0.10893134457975133, -0.16109166967813388, -0.11586148116818422, 0.1706702765616134, 0.1461448782269866, 0.08157169518314979, -0.1023843473749291, 0.10969062676478403, 0.012097370550074914, 0.18995646075133912, 0.1073769075095592, 0.05060923815520157, 0.20066467160166604, 0.08949964747317751, 0.054290535909793346, 0.04963696204474165, -0.08694389855348666, -0.0873131441579716, -0.31561288065161586, -0.10693428899384727, -0.2012755219412829, 0.0551683054890576, -0.09887412803036869, -0.07136604961388829, 0.42529876610218, 0.051879837273904855, 0.2702027957517007, 0.014569264921275053, 0.23447707801872542, 0.19608275596945246, 0.0888397667503123, 0.07093252122694672, 0.24183164352997522, 0.1842430354065208, 0.04904768821467792, -0.2818978213000858, 0.03537158929350332, 0.03288888548547017] |
708.2831 | The rotational broadening of V395 Car - implications on compact object's
mass | CONTEXT: The masses previously obtained for the X-ray binary 2S0921-630
inferred a compact object that was either a high-mass neutron star or low-mass
black-hole, but used a previously published value for the rotational broadening
(vsini) with large uncertainties. AIMS: We aim to determine an accurate mass
for the compact object through an improved measurement of the secondary star's
projected equatorial rotational velocity. METHODS: We have used UVES echelle
spectroscopy to determine the vsini of the secondary star (V395 Car) in the
low-mass X-ray binary 2S0921-630 by comparison to an artificially broadened
spectral-type template star. In addition, we have also measured vsini from a
single high signal-to-noise ratio absorption line profile calculated using the
method of Least-Squares Deconvolution (LSD). RESULTS: We determine vsini to lie
between 31.3+/-0.5km/s to 34.7+/-0.5km/s (assuming zero and continuum limb
darkening, respectively) in disagreement with revious results based on
intermediate resolution spectroscopy obtained with the 3.6m NTT. Using our
revised vsini value in combination with the secondary star's radial velocity
gives a binary mass ratio of 0.281+/-0.034. Furthermore, assuming a binary
inclination angle of 75 degrees gives a compact object mass of 1.37+/-0.13Mo.
CONCLUSIONS: We find that using relatively low-resolution spectroscopy can
result in systemic uncertainties in the measured vsini values obtained using
standard methods. We suggest the use of LSD as a secondary, reliable check of
the results as LSD allows one to directly discern the shape of the absorption
line profile. In the light of the new vsini measurement, we have revised down
the compact object's mass, such that it is now compatible with a canonical
neutron star mass.
| astro-ph | context the masses previously obtained for the xray binary 2s0921630 inferred a compact object that was either a highmass neutron star or lowmass blackhole but used a previously published value for the rotational broadening vsini with large uncertainties aims we aim to determine an accurate mass for the compact object through an improved measurement of the secondary stars projected equatorial rotational velocity methods we have used uves echelle spectroscopy to determine the vsini of the secondary star v395 car in the lowmass xray binary 2s0921630 by comparison to an artificially broadened spectraltype template star in addition we have also measured vsini from a single high signaltonoise ratio absorption line profile calculated using the method of leastsquares deconvolution lsd results we determine vsini to lie between 31305kms to 34705kms assuming zero and continuum limb darkening respectively in disagreement with revious results based on intermediate resolution spectroscopy obtained with the 36m ntt using our revised vsini value in combination with the secondary stars radial velocity gives a binary mass ratio of 02810034 furthermore assuming a binary inclination angle of 75 degrees gives a compact object mass of 137013mo conclusions we find that using relatively lowresolution spectroscopy can result in systemic uncertainties in the measured vsini values obtained using standard methods we suggest the use of lsd as a secondary reliable check of the results as lsd allows one to directly discern the shape of the absorption line profile in the light of the new vsini measurement we have revised down the compact objects mass such that it is now compatible with a canonical neutron star mass | [['context', 'the', 'masses', 'previously', 'obtained', 'for', 'the', 'xray', 'binary', '2s0921630', 'inferred', 'a', 'compact', 'object', 'that', 'was', 'either', 'a', 'highmass', 'neutron', 'star', 'or', 'lowmass', 'blackhole', 'but', 'used', 'a', 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708.2832 | On Reedy Model Categories | The sole purpose of this note is to introduce some elementary results on the
structure and functoriality of Reedy model categories. In particular, I give a
very useful little criterion to determine whether composition with a morphism
of Reedy categories determines a left or right Quillen functor. I then give a
number of useful inheritance results.
| math.AT math.CT | the sole purpose of this note is to introduce some elementary results on the structure and functoriality of reedy model categories in particular i give a very useful little criterion to determine whether composition with a morphism of reedy categories determines a left or right quillen functor i then give a number of useful inheritance results | [['the', 'sole', 'purpose', 'of', 'this', 'note', 'is', 'to', 'introduce', 'some', 'elementary', 'results', 'on', 'the', 'structure', 'and', 'functoriality', 'of', 'reedy', 'model', 'categories', 'in', 'particular', 'i', 'give', 'a', 'very', 'useful', 'little', 'criterion', 'to', 'determine', 'whether', 'composition', 'with', 'a', 'morphism', 'of', 'reedy', 'categories', 'determines', 'a', 'left', 'or', 'right', 'quillen', 'functor', 'i', 'then', 'give', 'a', 'number', 'of', 'useful', 'inheritance', 'results']] | [-0.10737292705120385, 0.013912782929505088, -0.11556804303212889, 0.15391271546416516, -0.15912287323070423, -0.2108461925028158, 0.020636223472787867, 0.37363773833827246, -0.3750581650861672, -0.22439407156447747, 0.05726162933569867, -0.1407549463172992, -0.14634060349635547, 0.10994287974400711, -0.19764940460611666, -0.13143034827330016, 0.08857401454588398, 0.11139376984959069, -0.034128046153845, -0.24020949269678177, 0.44390512535548105, 0.037823513615876436, 0.2259526808879205, 0.09636729884992487, 0.07396735493745966, -0.017548129428178072, -0.031289832633254785, -0.0375354640252356, -0.22107948046842857, 0.1377662796128009, 0.275967281947877, 0.1636215348678109, 0.2061864942453602, -0.3822663401453091, -0.04682951616788549, 0.15857483286111215, 0.08148491773421743, 0.05084035316083048, -0.061088208460465206, -0.2777155434845814, 0.13847376529260405, -0.20957698689640633, -0.08921593965247407, -0.08812518913431891, 0.07651591167918273, 0.0011520441954157182, -0.2521668549462837, -0.06549146518227644, 0.14805263481892844, 0.12923108207594072, -0.0712294242111966, -0.10792868567763694, -0.025077053611832007, 0.12346276110786546, 0.007068912276216517, -0.001278487017511257, 0.10920129314763471, -0.13975596304434085, -0.06748412375704252, 0.4145859835137214, -0.05156638892367482, -0.2094646109700469, 0.1957051293990974, -0.10063247358942005, -0.18353906024380454, 0.0648357514125694, 0.008003619474558426, 0.12994461819263442, -0.09857314022311973, 0.12357739922819226, -0.1575383728902255, 0.14088628254830837, 0.0895902665797621, 0.032750969153961966, 0.16288691160402127, 0.13207345048015537, 0.027904481760093143, 0.15009751975802438, 0.01421410104376264, 0.003189731073299689, -0.3681138875295541, -0.20801447230457729, -0.030170912222404565, 0.13726475114344794, -0.06585977153294412, -0.20320166133543743, 0.44035074367587057, 0.17397078633907118, 0.22560320109395043, 0.11079203801429165, 0.22980751981958747, 0.010875570820644498, 0.0026777276070788503, -0.033964658995890726, 0.1295275161002272, 0.2399481765460223, 0.04022843255578274, -0.058978043720084576, 0.08196674084423908, 0.1897094135472019] |
708.2833 | Fully Unintegrated Parton Correlation Functions and Factorization in
Lowest Order Hard Scattering | Motivated by the need to correct the potentially large kinematic errors in
approximations used in the standard formulation of perturbative QCD, we
reformulate deeply inelastic lepton-proton scattering in terms of gauge
invariant, universal parton correlation functions which depend on all
components of parton four-momentum. Currently, different hard QCD processes are
described by very different perturbative formalisms, each relying on its own
set of kinematical approximations. In this paper we show how to set up
formalism that avoids approximations on final-state momenta, and thus has a
very general domain of applicability. The use of exact kinematics introduces a
number of significant conceptual shifts already at leading order, and tightly
constrains the formalism. We show how to define parton correlation functions
that generalize the concepts of parton density, fragmentation function, and
soft factor. After setting up a general subtraction formalism, we obtain a
factorization theorem. To avoid complications with Ward identities the full
derivation is restricted to abelian gauge theories; even so the resulting
structure is highly suggestive of a similar treatment for non-abelian gauge
theories.
| hep-ph | motivated by the need to correct the potentially large kinematic errors in approximations used in the standard formulation of perturbative qcd we reformulate deeply inelastic leptonproton scattering in terms of gauge invariant universal parton correlation functions which depend on all components of parton fourmomentum currently different hard qcd processes are described by very different perturbative formalisms each relying on its own set of kinematical approximations in this paper we show how to set up formalism that avoids approximations on finalstate momenta and thus has a very general domain of applicability the use of exact kinematics introduces a number of significant conceptual shifts already at leading order and tightly constrains the formalism we show how to define parton correlation functions that generalize the concepts of parton density fragmentation function and soft factor after setting up a general subtraction formalism we obtain a factorization theorem to avoid complications with ward identities the full derivation is restricted to abelian gauge theories even so the resulting structure is highly suggestive of a similar treatment for nonabelian gauge theories | [['motivated', 'by', 'the', 'need', 'to', 'correct', 'the', 'potentially', 'large', 'kinematic', 'errors', 'in', 'approximations', 'used', 'in', 'the', 'standard', 'formulation', 'of', 'perturbative', 'qcd', 'we', 'reformulate', 'deeply', 'inelastic', 'leptonproton', 'scattering', 'in', 'terms', 'of', 'gauge', 'invariant', 'universal', 'parton', 'correlation', 'functions', 'which', 'depend', 'on', 'all', 'components', 'of', 'parton', 'fourmomentum', 'currently', 'different', 'hard', 'qcd', 'processes', 'are', 'described', 'by', 'very', 'different', 'perturbative', 'formalisms', 'each', 'relying', 'on', 'its', 'own', 'set', 'of', 'kinematical', 'approximations', 'in', 'this', 'paper', 'we', 'show', 'how', 'to', 'set', 'up', 'formalism', 'that', 'avoids', 'approximations', 'on', 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708.2834 | Negative differential resistance of Styrene on an ideal Si[111] surface:
dependence of the I-V characteristics on geometry, surface doping and shape
of the STM-tip | We study the electron transport properties through a supported organic
molecule styrene (C8H8) on an ideal silicon surface Si[111] and probed by a
STM-tip. The I-V characteristics and the differential conductance of the
molecule are calculated using a self consistent approach based on non
equilibrium Green's functions. Two different adsorption configurations for the
molecule on the surface were considered which corresponds to a global and a
local minimum of the total energy. In both cases we find a negative
differential resistance (NDR) in a given interval of bias voltages. This effect
is controlled by the states available close to the Fermi level of the surface
and can be manipulated by properly doping the substrate. We also analyze the
influence of the tip-shape on the I-V characteristics.
| cond-mat.mtrl-sci | we study the electron transport properties through a supported organic molecule styrene c8h8 on an ideal silicon surface si111 and probed by a stmtip the iv characteristics and the differential conductance of the molecule are calculated using a self consistent approach based on non equilibrium greens functions two different adsorption configurations for the molecule on the surface were considered which corresponds to a global and a local minimum of the total energy in both cases we find a negative differential resistance ndr in a given interval of bias voltages this effect is controlled by the states available close to the fermi level of the surface and can be manipulated by properly doping the substrate we also analyze the influence of the tipshape on the iv characteristics | [['we', 'study', 'the', 'electron', 'transport', 'properties', 'through', 'a', 'supported', 'organic', 'molecule', 'styrene', 'c8h8', 'on', 'an', 'ideal', 'silicon', 'surface', 'si111', 'and', 'probed', 'by', 'a', 'stmtip', 'the', 'iv', 'characteristics', 'and', 'the', 'differential', 'conductance', 'of', 'the', 'molecule', 'are', 'calculated', 'using', 'a', 'self', 'consistent', 'approach', 'based', 'on', 'non', 'equilibrium', 'greens', 'functions', 'two', 'different', 'adsorption', 'configurations', 'for', 'the', 'molecule', 'on', 'the', 'surface', 'were', 'considered', 'which', 'corresponds', 'to', 'a', 'global', 'and', 'a', 'local', 'minimum', 'of', 'the', 'total', 'energy', 'in', 'both', 'cases', 'we', 'find', 'a', 'negative', 'differential', 'resistance', 'ndr', 'in', 'a', 'given', 'interval', 'of', 'bias', 'voltages', 'this', 'effect', 'is', 'controlled', 'by', 'the', 'states', 'available', 'close', 'to', 'the', 'fermi', 'level', 'of', 'the', 'surface', 'and', 'can', 'be', 'manipulated', 'by', 'properly', 'doping', 'the', 'substrate', 'we', 'also', 'analyze', 'the', 'influence', 'of', 'the', 'tipshape', 'on', 'the', 'iv', 'characteristics']] | [-0.14114067862182855, 0.0989216293200152, -0.0695655214805156, 0.044722909320145846, 0.01844467356428504, -0.1383776979409158, 0.08611903997231275, 0.37918915165029465, -0.24607641102746128, -0.29217146326601506, 0.03410878738202155, -0.30088194377720356, -0.1195209389552474, 0.20838919995725155, 0.0063164516966789964, 0.029150401281192898, 0.01799421774595976, -0.010109079994261265, -0.06820584141463042, -0.20003005545586347, 0.3272929238677025, 0.05978246855409816, 0.2910694355741143, 0.11949381393194199, 0.10242668512836099, -0.011564041679725051, 0.04482664215937257, 0.08410820566034817, -0.16009720352408477, 0.10214507398148999, 0.19938646073453128, -0.04361699434556067, 0.20647310172766448, -0.4530193624943495, -0.1901384153109975, 0.014451768379658461, 0.07075896170642226, 0.11877315547596663, -0.051147036602371375, -0.26454234339296817, 0.06436859389021993, -0.11318063360825181, -0.09871347813680768, -0.020855963207781315, -0.006025812692940235, 0.05677943374030292, -0.22985250978916882, 0.06092110404535197, -0.004535689212381839, 0.07575647731870414, -0.08508603347651661, -0.12631254203245043, -0.11862241289019584, 0.09202023015078158, -0.02251084797643125, -0.01653448859672062, 0.2335832998454571, -0.10328051645122469, -0.07398015783727169, 0.3406696969345212, -0.1178238625563681, -0.20719511967431753, 0.1616334757152945, -0.15942767583206297, -0.05225048746168613, 0.14689582859352232, 0.13806782053411007, 0.135876991674304, -0.17576474928390234, 0.07298122703656554, -0.007360406376421451, 0.15933471813052894, 0.07117820668593049, 0.00046624965779483316, 0.23487108616530894, 0.16831929801404477, 0.05983492699172348, 0.1382918931087479, -0.13608036577748134, -0.03677783418446779, -0.27268290107510984, -0.18478967314958572, -0.1830659082531929, 0.06203986847400665, -0.023608292953576894, -0.17763736361265184, 0.436973086938262, 0.0733594747595489, 0.23022797796130182, -0.031759522254578766, 0.24965512362867595, 0.14822987017035485, 0.05111227084323764, 0.02432546515238937, 0.22563772931322457, 0.12648927897959947, 0.055507485985755924, -0.30431231395341457, 0.11299117939174175, 0.0035981011018157007] |
708.2835 | Unraveling unparticles through violation of atomic parity and rare
beauty | We put constraints on unparticle physics, specifically on the scale
$\Lambda_\U$ and the scale dimension $d_\U$ of unparticle operators, using (i)
measurements of atomic parity violation as well as (ii) branching ratio and CP
asymmetry measurements in some rare non-leptonic B decay channels.
| hep-ph | we put constraints on unparticle physics specifically on the scale lambda_u and the scale dimension d_u of unparticle operators using i measurements of atomic parity violation as well as ii branching ratio and cp asymmetry measurements in some rare nonleptonic b decay channels | [['we', 'put', 'constraints', 'on', 'unparticle', 'physics', 'specifically', 'on', 'the', 'scale', 'lambda_u', 'and', 'the', 'scale', 'dimension', 'd_u', 'of', 'unparticle', 'operators', 'using', 'i', 'measurements', 'of', 'atomic', 'parity', 'violation', 'as', 'well', 'as', 'ii', 'branching', 'ratio', 'and', 'cp', 'asymmetry', 'measurements', 'in', 'some', 'rare', 'nonleptonic', 'b', 'decay', 'channels']] | [-0.1345868410588632, 0.26317386786171865, 0.002927806071373959, 0.16109560248117114, -0.09904308066443475, -0.23739388326269595, 0.11645544844484607, 0.21712720385471054, -0.25531946750747603, -0.26937512117762896, 0.07196022265016773, -0.32402264886687315, -0.04231435239185081, 0.0755279952400299, 0.13777209129617657, 0.10439275538678779, -0.013152068968169218, -0.002192809744629749, -0.06158517177898957, -0.16190414667822595, 0.33754003058772447, 0.05847747698101367, 0.21537926065367322, 0.1449647459179856, 0.002679955809875283, -0.01821478921920061, -0.08423265929572112, -0.008216924835429636, -0.17654212825216872, 0.03209492239321387, 0.11559113554201673, 0.155846735760353, 0.05204913095939298, -0.3742468663989458, -0.054544399297514624, 0.1867081593982009, 0.16798802097003127, 0.05259165265272523, -0.03277313421740262, -0.39156380313080413, -0.02047436918283618, -0.12001888201636977, -0.00988648770117136, -0.09208554308861494, 0.1056740584588328, -0.10931992247094248, -0.37608777411108796, 0.10956205781765802, -0.04197649378058782, 0.09037319099703847, 0.030944453441364646, -0.22760695946771045, 0.040827508079061325, 0.009283591622248465, 0.14908892111203007, -0.032879866697543926, 0.21279102447984177, -0.15050617875098143, -0.18635704258164434, 0.43121720918692474, -0.14651089303227965, -0.21795587183171233, 0.1726198510028595, -0.248301284593465, -0.2504551901135507, 0.01896306411579771, 0.2697191166496554, 0.031987900813218464, -0.10936076048934876, 0.2317096701644491, -0.05898640599361686, 0.1401790380044732, 0.07001735919783282, 0.2036809741930906, 0.12621000141641775, 0.19937153481120287, 0.0773327786605372, 0.005046287226642287, -0.1156622953117327, -0.01371850475105782, -0.4291828853446384, -0.12509260131695935, -0.12219844429028155, 0.13118135119073612, -0.0960748974053828, -0.018658263089005336, 0.3237139701106867, 0.08884633479769839, 0.30176457826611264, 0.015770285476952098, 0.2768848514790798, 0.09544789235562433, 0.11920494448290704, 0.004279773898942526, 0.294611041751544, 0.19087786136498286, 0.1623607470699976, -0.28500782995116575, 0.07870330221864373, 0.05799010618005034] |
708.2836 | Free-Floating HI Clouds in the M 81 Group | Recent VLA observations pointed at dwarf spheroidal (dSph) galaxies in the M
81 group reveal a hitherto hidden population of extremely low mass (~1e5 Msol)
HI clouds with no obvious optical counterparts. We have searched 10 fields in
the M81 group totalling 2.2 square degree, both targeting known dwarf
spheroidal galaxies and blank fields around the central triplet. Our
observations show that the new population of low-mass HI clouds appears to be
confined to a region toward the South-East of the central triplet (at distances
of ~100 kpc from M 81). Possible explanations for these free-floating HI clouds
are that they are related to the dSphs found to the South-East of M 81, that
they belong to the galaxies of the M 81 triplet (equivalent to HVCs), that they
are of primordial nature and provide fresh, unenriched material falling into
the M 81 group, or that they are tidal debris from the 3-body interaction
involving M 81-M 82-NGC 3077. Based on circumstantial evidence, we currently
favour the latter explanation.
| astro-ph | recent vla observations pointed at dwarf spheroidal dsph galaxies in the m 81 group reveal a hitherto hidden population of extremely low mass 1e5 msol hi clouds with no obvious optical counterparts we have searched 10 fields in the m81 group totalling 22 square degree both targeting known dwarf spheroidal galaxies and blank fields around the central triplet our observations show that the new population of lowmass hi clouds appears to be confined to a region toward the southeast of the central triplet at distances of 100 kpc from m 81 possible explanations for these freefloating hi clouds are that they are related to the dsphs found to the southeast of m 81 that they belong to the galaxies of the m 81 triplet equivalent to hvcs that they are of primordial nature and provide fresh unenriched material falling into the m 81 group or that they are tidal debris from the 3body interaction involving m 81m 82ngc 3077 based on circumstantial evidence we currently favour the latter explanation | [['recent', 'vla', 'observations', 'pointed', 'at', 'dwarf', 'spheroidal', 'dsph', 'galaxies', 'in', 'the', 'm', '81', 'group', 'reveal', 'a', 'hitherto', 'hidden', 'population', 'of', 'extremely', 'low', 'mass', '1e5', 'msol', 'hi', 'clouds', 'with', 'no', 'obvious', 'optical', 'counterparts', 'we', 'have', 'searched', '10', 'fields', 'in', 'the', 'm81', 'group', 'totalling', '22', 'square', 'degree', 'both', 'targeting', 'known', 'dwarf', 'spheroidal', 'galaxies', 'and', 'blank', 'fields', 'around', 'the', 'central', 'triplet', 'our', 'observations', 'show', 'that', 'the', 'new', 'population', 'of', 'lowmass', 'hi', 'clouds', 'appears', 'to', 'be', 'confined', 'to', 'a', 'region', 'toward', 'the', 'southeast', 'of', 'the', 'central', 'triplet', 'at', 'distances', 'of', '100', 'kpc', 'from', 'm', '81', 'possible', 'explanations', 'for', 'these', 'freefloating', 'hi', 'clouds', 'are', 'that', 'they', 'are', 'related', 'to', 'the', 'dsphs', 'found', 'to', 'the', 'southeast', 'of', 'm', '81', 'that', 'they', 'belong', 'to', 'the', 'galaxies', 'of', 'the', 'm', '81', 'triplet', 'equivalent', 'to', 'hvcs', 'that', 'they', 'are', 'of', 'primordial', 'nature', 'and', 'provide', 'fresh', 'unenriched', 'material', 'falling', 'into', 'the', 'm', '81', 'group', 'or', 'that', 'they', 'are', 'tidal', 'debris', 'from', 'the', '3body', 'interaction', 'involving', 'm', '81m', '82ngc', '3077', 'based', 'on', 'circumstantial', 'evidence', 'we', 'currently', 'favour', 'the', 'latter', 'explanation']] | [-0.11943633604373428, 0.07907886118517213, -0.06474610851035409, 0.11563673398701385, -0.1137273551943335, -0.07289623485190705, 0.06210865857013102, 0.42957676485890434, -0.11405328073583189, -0.3743922883295454, 0.04050996242273998, -0.2946110988213193, -0.04304277875746179, 0.15183911555297008, -0.011410890234574686, -0.09033653854082029, 0.030124353484660832, -0.06325477564834207, -0.027504225931243992, -0.3049917680114266, 0.27155918598319184, 0.0351254666747991, 0.11866639122655172, -0.08565779473602084, 0.05067860700433985, -0.14002170227745192, -0.07333237084648794, -0.060853016091555, -0.12646320909841183, 0.04354407952632755, 0.2571842890857148, 0.09663334335034181, 0.22405436651093796, -0.37125080827224466, -0.1574466432544536, 0.09421490860057972, 0.21577972441376742, 0.008808266776170404, -0.08928443208250905, -0.34058146815195434, 0.09884434520998704, -0.17973130573236198, -0.1934618635014409, 0.06333175590121495, 0.09288051889909964, 0.01860208390973553, -0.16817963589814358, 0.15442619956974385, 0.04240121820060137, 0.09039126171722144, -0.09258430172173705, -0.18130780429886986, -0.06026956517771829, 0.044229422511610515, 0.011428222295329587, 0.08476575437678202, 0.21137796340986997, -0.13093586046826594, -0.0059187030974065975, 0.41168286020512734, -0.08362633946152138, 0.025533848627847397, 0.2939911140475444, -0.23867986905887456, -0.19482560011203445, 0.17427000629582576, 0.13178736372806488, 0.08187261865601786, -0.14889646040475263, 0.03153612172467374, -0.12069133721109081, 0.18912891899180112, 0.0592564164405866, 0.08254925819000207, 0.35773530063064146, 0.0323100116580636, 0.05861152735278232, 0.034114066142051126, -0.2455120634861357, -0.04839563162455479, -0.21712434324546762, -0.12271403914894022, -0.11957931289604555, 0.10742250147242365, -0.10237593060741174, -0.0734746179604415, 0.2803836259076239, 0.10018858419720172, 0.24088721233420074, 0.037974429810197934, 0.24733072646804863, 0.014092254015156954, 0.16289099444457816, 0.16045055676728398, 0.3033576496638402, 0.1861944474568147, 0.03906833796506925, -0.17875453339157893, 0.008054807599927742, -0.0434366681881892] |
708.2837 | The Physics of Information | We review of the interface between (theoretical) physics and information for
non-experts. The origin of information as related to the notion of entropy is
described, first in the context of thermodynamics then in the context of
statistical mechanics. A close examination of the foundations of statistical
mechanics and the need to reconcile the probabilistic and deterministic views
of the world leads us to a discussion of chaotic dynamics, where information
plays a crucial role in quantifying predictability. We then discuss a variety
of fundamental issues that emerge in defining information and how one must
exercise care in discussing concepts such as order, disorder, and incomplete
knowledge. We also discuss an alternative form of entropy and its possible
relevance for nonequilibrium thermodynamics.
In the final part of the paper we discuss how quantum mechanics gives rise to
the very different concept of quantum information. Entirely new possibilities
for information storage and computation are possible due to the massive
parallel processing inherent in quantum mechanics. We also point out how
entropy can be extended to apply to quantum mechanics to provide a useful
measurement for quantum entanglement.
Finally we make a small excursion to the interface betweeen quantum theory
and general relativity, where one is confronted with an "ultimate information
paradox" posed by the physics of Black Holes.
In this review we have limited ourselves; not all relevant topics that touch
on physics and information could be covered.
| physics.class-ph cond-mat.stat-mech gr-qc physics.gen-ph quant-ph | we review of the interface between theoretical physics and information for nonexperts the origin of information as related to the notion of entropy is described first in the context of thermodynamics then in the context of statistical mechanics a close examination of the foundations of statistical mechanics and the need to reconcile the probabilistic and deterministic views of the world leads us to a discussion of chaotic dynamics where information plays a crucial role in quantifying predictability we then discuss a variety of fundamental issues that emerge in defining information and how one must exercise care in discussing concepts such as order disorder and incomplete knowledge we also discuss an alternative form of entropy and its possible relevance for nonequilibrium thermodynamics in the final part of the paper we discuss how quantum mechanics gives rise to the very different concept of quantum information entirely new possibilities for information storage and computation are possible due to the massive parallel processing inherent in quantum mechanics we also point out how entropy can be extended to apply to quantum mechanics to provide a useful measurement for quantum entanglement finally we make a small excursion to the interface betweeen quantum theory and general relativity where one is confronted with an ultimate information paradox posed by the physics of black holes in this review we have limited ourselves not all relevant topics that touch on physics and information could be covered | [['we', 'review', 'of', 'the', 'interface', 'between', 'theoretical', 'physics', 'and', 'information', 'for', 'nonexperts', 'the', 'origin', 'of', 'information', 'as', 'related', 'to', 'the', 'notion', 'of', 'entropy', 'is', 'described', 'first', 'in', 'the', 'context', 'of', 'thermodynamics', 'then', 'in', 'the', 'context', 'of', 'statistical', 'mechanics', 'a', 'close', 'examination', 'of', 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|
708.2838 | CW type of inverse limits and function spaces | Given CW complexes X and Y, let map(X,Y) denote the space of continuous
functions from X to Y with the compact open topology. The space map(X,Y) need
not have the homotopy type of a CW complex. Here the results of an extensive
investigation of various necessary and various sufficient conditions for
map(X,Y) to have the homotopy type of a CW complex are exhibited. The results
extend all previously known results on this topic. Moreover, appropriate
converses are given for the previously known sufficient conditions.
It is shown that this difficult question is related to well known problems in
algebraic topology. For example, the geometric Moore conjecture (asserting that
a simply connected finite complex admits an eventual geometric exponent at any
prime if and only if it is elliptic) can be restated in terms of CW homotopy
type of certain function spaces.
Spaces of maps between CW complexes are a particular case of inverse limits
of systems whose bonds are Hurewicz fibrations between spaces of CW homotopy
type. Related problems concerning CW homotopy type of the limit space of such a
system are also studied. In particular, an almost complete solution to a well
known problem concerning towers of fibrations is presented.
| math.AT | given cw complexes x and y let mapxy denote the space of continuous functions from x to y with the compact open topology the space mapxy need not have the homotopy type of a cw complex here the results of an extensive investigation of various necessary and various sufficient conditions for mapxy to have the homotopy type of a cw complex are exhibited the results extend all previously known results on this topic moreover appropriate converses are given for the previously known sufficient conditions it is shown that this difficult question is related to well known problems in algebraic topology for example the geometric moore conjecture asserting that a simply connected finite complex admits an eventual geometric exponent at any prime if and only if it is elliptic can be restated in terms of cw homotopy type of certain function spaces spaces of maps between cw complexes are a particular case of inverse limits of systems whose bonds are hurewicz fibrations between spaces of cw homotopy type related problems concerning cw homotopy type of the limit space of such a system are also studied in particular an almost complete solution to a well known problem concerning towers of fibrations is presented | [['given', 'cw', 'complexes', 'x', 'and', 'y', 'let', 'mapxy', 'denote', 'the', 'space', 'of', 'continuous', 'functions', 'from', 'x', 'to', 'y', 'with', 'the', 'compact', 'open', 'topology', 'the', 'space', 'mapxy', 'need', 'not', 'have', 'the', 'homotopy', 'type', 'of', 'a', 'cw', 'complex', 'here', 'the', 'results', 'of', 'an', 'extensive', 'investigation', 'of', 'various', 'necessary', 'and', 'various', 'sufficient', 'conditions', 'for', 'mapxy', 'to', 'have', 'the', 'homotopy', 'type', 'of', 'a', 'cw', 'complex', 'are', 'exhibited', 'the', 'results', 'extend', 'all', 'previously', 'known', 'results', 'on', 'this', 'topic', 'moreover', 'appropriate', 'converses', 'are', 'given', 'for', 'the', 'previously', 'known', 'sufficient', 'conditions', 'it', 'is', 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'towers', 'of', 'fibrations', 'is', 'presented']] | [-0.15375868403827725, 0.08582934304637156, -0.05790732781731742, 0.10795035158673218, -0.09205164603885513, -0.14582650823546434, 0.020139664218677626, 0.3894450667578338, -0.3146491546684237, -0.23337631553077876, 0.1387795443531932, -0.20215053717716971, -0.15587669261615372, 0.2513152377920883, -0.13955085235532022, 0.007742955572949491, 0.035188835559051425, 0.08317367395905045, -0.06665601467120633, -0.27707687778159773, 0.40490346590511095, -0.048330215646871434, 0.2152497479315815, 0.07442928499551443, 0.10638969880876256, -0.02071690862993733, -0.007621272531945018, 0.01812007190646321, -0.15782602219554231, 0.11560369851079245, 0.292580556339904, 0.10335611366893892, 0.20918536516582936, -0.34681205772354606, -0.21624511113015019, 0.20659763448227622, 0.11327313889392573, 0.003974209574343108, -0.006858485160668877, -0.28720799040174416, 0.14099670625500269, -0.12323796163910805, -0.15896850747440883, -0.08459858899699774, 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708.2839 | Quark mass and condensate in HQCD | We extend the Sakai-Sugimoto holographic model of QCD (HQCD) by including the
scalar bi-fundamental "tachyon" field in the 8-brane-anti-8-brane probe theory.
We show that this field is responsible both for the spontaneous breaking of the
chiral symmetry, and for the generation of (current algebra) quark masses, from
the point of view of the bulk theory. As a by-product we show how this leads to
the Gell-Mann- Oakes-Renner relation for the pion mass.
| hep-th hep-ph | we extend the sakaisugimoto holographic model of qcd hqcd by including the scalar bifundamental tachyon field in the 8braneanti8brane probe theory we show that this field is responsible both for the spontaneous breaking of the chiral symmetry and for the generation of current algebra quark masses from the point of view of the bulk theory as a byproduct we show how this leads to the gellmann oakesrenner relation for the pion mass | [['we', 'extend', 'the', 'sakaisugimoto', 'holographic', 'model', 'of', 'qcd', 'hqcd', 'by', 'including', 'the', 'scalar', 'bifundamental', 'tachyon', 'field', 'in', 'the', '8braneanti8brane', 'probe', 'theory', 'we', 'show', 'that', 'this', 'field', 'is', 'responsible', 'both', 'for', 'the', 'spontaneous', 'breaking', 'of', 'the', 'chiral', 'symmetry', 'and', 'for', 'the', 'generation', 'of', 'current', 'algebra', 'quark', 'masses', 'from', 'the', 'point', 'of', 'view', 'of', 'the', 'bulk', 'theory', 'as', 'a', 'byproduct', 'we', 'show', 'how', 'this', 'leads', 'to', 'the', 'gellmann', 'oakesrenner', 'relation', 'for', 'the', 'pion', 'mass']] | [-0.09818000104278327, 0.2102336498110422, -0.10024371773802808, 0.09909507301469733, -0.06983678407434907, -0.05143739519241665, 0.03583459918487019, 0.29290599888190627, -0.2041167533823422, -0.2507651944644749, 0.0356096137165358, -0.23811911647873266, -0.14423605961658592, 0.10036985645004148, 0.017725526980523553, 0.025863082154787012, -0.057454793600897704, 0.08020901675336063, -0.09973107200847672, -0.18246311814291402, 0.3861870702888284, -0.009331689861470035, 0.2943451874756387, 0.14835629195107947, 0.07839722548877555, 0.008935891590746385, -0.0038807969806449755, -0.04083360311176096, -0.11693383645916973, 0.0799131631452058, 0.16466924492519217, 0.08517403155897878, 0.11520793246371405, -0.40132713804819753, -0.21935902733821422, 0.08206579866153853, 0.13980540214771672, 0.185558488625767, -0.09916116655138986, -0.27374058570712806, 0.0901635280643989, -0.21519242354801724, -0.18651516192060497, -0.10724519417355104, -0.05311481360279556, -0.07942205776593515, -0.30319583884972545, 0.11264133373541492, 0.001022138466526355, 0.028471681149676444, -0.062405648667897495, -0.0948575226057853, -0.0721587079710194, 0.05832220171245613, 0.1393316002978411, 0.07600118616662388, 0.147456763244866, -0.2550449483828353, -0.1458695937097738, 0.44447148734969755, -0.10439694857757006, -0.14496627865758324, 0.11082068957122308, -0.1443448071567608, -0.14989271204519486, 0.04726542324892112, 0.1329867567767256, 0.10916490877446319, -0.1332304647325405, 0.16651148432782584, -0.08074822188355028, 0.12256255147221964, 0.05477696901985577, 0.036792858011488405, 0.30044950494276623, 0.17179703479466427, -0.014370947198144027, 0.1469078824722341, -0.05105170107313565, -0.12472766683037792, -0.41204999570202616, -0.1584665466765208, -0.13756121616544467, 0.06879560169098632, -0.1331639649477438, -0.11968097298273019, 0.41682741556848796, 0.21648075471499137, 0.20013899457241807, 0.059966709877231295, 0.2495940773415246, 0.1142878885497339, 0.10249042409871306, 0.026941985550469585, 0.28601827412577613, 0.20510285809702639, 0.1324805323101048, -0.3063188854638221, -0.14059847732673267, 0.1416702953566398] |
708.284 | CO-activator model for reconstructing Pt(100) surfaces: local
microstructures and chemical turbulence | We present the results of the modelling of CO adsorption and catalytic CO
oxidation on inhomogeneous Pt(100) surfaces which contain structurally
different areas. These areas are formed during the CO-induced transition from a
reconstructed phase with hexagonal geometry of the overlayer to a bulk-like
(1x1) phase with square atomic arrangement. In the present approach, the
surface transition is explained in terms of nonequilibrium bistable behavior.
The bistable region is characterized by a coexistence of the hexagonal and
(1x1) phases and is terminated in a critical bifurcation point which is located
at (T_c ~680 K, p_CO ~10 Torr). Due to increasing fluctuations, the behavior at
high temperatures and pressures in the vicinity of this cusp point should be
qualitatively different from the hysteresis-type behavior which is typically
observed in the experiments under ultrahigh vacuum conditions. On the
inhomogeneous surface, we find a regime of nonuniform oscillations
characterized by random standing waves of adsorbate concentrations. The
resulting spatial deformations of wave fronts allow to gain deeper insight into
the nature of irregular oscillations on Pt(100) surface.
| cond-mat.stat-mech cond-mat.mtrl-sci | we present the results of the modelling of co adsorption and catalytic co oxidation on inhomogeneous pt100 surfaces which contain structurally different areas these areas are formed during the coinduced transition from a reconstructed phase with hexagonal geometry of the overlayer to a bulklike 1x1 phase with square atomic arrangement in the present approach the surface transition is explained in terms of nonequilibrium bistable behavior the bistable region is characterized by a coexistence of the hexagonal and 1x1 phases and is terminated in a critical bifurcation point which is located at t_c 680 k p_co 10 torr due to increasing fluctuations the behavior at high temperatures and pressures in the vicinity of this cusp point should be qualitatively different from the hysteresistype behavior which is typically observed in the experiments under ultrahigh vacuum conditions on the inhomogeneous surface we find a regime of nonuniform oscillations characterized by random standing waves of adsorbate concentrations the resulting spatial deformations of wave fronts allow to gain deeper insight into the nature of irregular oscillations on pt100 surface | [['we', 'present', 'the', 'results', 'of', 'the', 'modelling', 'of', 'co', 'adsorption', 'and', 'catalytic', 'co', 'oxidation', 'on', 'inhomogeneous', 'pt100', 'surfaces', 'which', 'contain', 'structurally', 'different', 'areas', 'these', 'areas', 'are', 'formed', 'during', 'the', 'coinduced', 'transition', 'from', 'a', 'reconstructed', 'phase', 'with', 'hexagonal', 'geometry', 'of', 'the', 'overlayer', 'to', 'a', 'bulklike', '1x1', 'phase', 'with', 'square', 'atomic', 'arrangement', 'in', 'the', 'present', 'approach', 'the', 'surface', 'transition', 'is', 'explained', 'in', 'terms', 'of', 'nonequilibrium', 'bistable', 'behavior', 'the', 'bistable', 'region', 'is', 'characterized', 'by', 'a', 'coexistence', 'of', 'the', 'hexagonal', 'and', '1x1', 'phases', 'and', 'is', 'terminated', 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708.2841 | Geodesics and Geodesic Deviation in static Charged Black Holes | The radial motion along null geodesics in static charged black hole
space-times, in particular, the Reissner-Nordstr\"om and stringy charged black
holes are studied. We analyzed the properties of the effective potential. The
circular photon orbits in these space-times are investigated. We found that the
radius of circular photon orbits in both charged black holes are different and
differ from that given in Schwarzschild space-time. We studied the physical
effects of the gravitational field between two test particles in stringy
charged black hole and compared the results with that given in Schwarzschild
and Reissner-Nordstr\"om black holes.
| math-ph math.MP | the radial motion along null geodesics in static charged black hole spacetimes in particular the reissnernordstrom and stringy charged black holes are studied we analyzed the properties of the effective potential the circular photon orbits in these spacetimes are investigated we found that the radius of circular photon orbits in both charged black holes are different and differ from that given in schwarzschild spacetime we studied the physical effects of the gravitational field between two test particles in stringy charged black hole and compared the results with that given in schwarzschild and reissnernordstrom black holes | [['the', 'radial', 'motion', 'along', 'null', 'geodesics', 'in', 'static', 'charged', 'black', 'hole', 'spacetimes', 'in', 'particular', 'the', 'reissnernordstrom', 'and', 'stringy', 'charged', 'black', 'holes', 'are', 'studied', 'we', 'analyzed', 'the', 'properties', 'of', 'the', 'effective', 'potential', 'the', 'circular', 'photon', 'orbits', 'in', 'these', 'spacetimes', 'are', 'investigated', 'we', 'found', 'that', 'the', 'radius', 'of', 'circular', 'photon', 'orbits', 'in', 'both', 'charged', 'black', 'holes', 'are', 'different', 'and', 'differ', 'from', 'that', 'given', 'in', 'schwarzschild', 'spacetime', 'we', 'studied', 'the', 'physical', 'effects', 'of', 'the', 'gravitational', 'field', 'between', 'two', 'test', 'particles', 'in', 'stringy', 'charged', 'black', 'hole', 'and', 'compared', 'the', 'results', 'with', 'that', 'given', 'in', 'schwarzschild', 'and', 'reissnernordstrom', 'black', 'holes']] | [-0.1716442094919713, 0.14318934013870985, -0.038317666673346566, 0.1740140494645426, -0.014756870367809346, -0.1512851740674753, -0.08370558929286505, 0.340467326205812, -0.08856489663257411, -0.2827566497027874, 0.015974827410996352, -0.38068257062450833, -0.05451384552901513, 0.1916573773285276, -0.059261472415375084, 0.08909810360913215, -0.00789366149784703, 0.0416542788207727, -0.10833386654573443, -0.20336929364374987, 0.4107771774606877, 0.08264111496115986, 0.2050790384215744, -0.015058466801910024, 0.07503548523803291, 0.04141431421923794, 0.02612532686050001, 0.14506979106288206, -0.19027523722271375, 0.04836675234040932, 0.1532256024938665, 0.09807269735948036, 0.11246191075463828, -0.4214743533416798, -0.18742355132769598, 0.04629336625925804, 0.18327094333148317, 0.18482149759013403, -0.18515434103380693, -0.320746535337285, 0.11611338277396403, -0.19457637555897236, -0.16754635616548752, 0.003770886312581991, 0.10742384377303288, 0.001429675009689833, -0.1471771663152858, 0.14278900511409645, 0.07525479963637496, -0.10499998057555211, -0.1797766720336911, -0.042003185777483805, -0.10515336132069167, 0.08912339508533478, 0.22949190700524733, -0.038685803963361604, 0.2594999743282403, -0.07351273060041039, -0.16526303067313214, 0.36528915964851255, -0.05629530750018986, -0.25204286002799087, 0.17160982491546556, -0.3598229787704584, -0.06407788920363314, 0.10904327831721228, 0.19331308004299277, 0.2930340835432473, -0.17041820724935908, 0.15993607463560214, 0.007125166371023577, 0.09143101988654388, 0.21209283202004275, 0.08843297073617577, 0.4609776742364231, 0.05097559129476155, -0.05317976752198056, 0.15813198524135116, -0.0681358328187152, -0.10415553081854198, -0.30971069233982185, -0.1334133963345697, -0.11964577193813104, 0.06763445966337857, -0.216261474434654, -0.18635374522326809, 0.3070255816865124, 0.08988486853440439, 0.1673971178647327, -0.053857799374351374, 0.20891462483709083, 0.021351006687128624, -0.033237402719494546, 0.14903817618951987, 0.431891624394216, 0.11998770606557005, 0.14190254663362314, -0.23429475294082966, -0.1536223194022712, 0.07918658745720199] |
708.2842 | The Structural Parameters of Bulges, Bars and Discs in the Local
Universe | Image decomposition of galaxies is now routinely used to estimate the
structural parameters of galactic components. In this work, I address questions
on the reliability of this technique. In particular, do bars and AGN need to be
taken into account to obtain the structural parameters of bulges and discs? And
to what extent can we trust image decomposition when the physical spatial
resolution is relatively poor? With this aim, I performed multi-component
(bar/bulge/disc/AGN) image decomposition of a sample of very nearby galaxies
and their artificially redshifted images, and verified the effects of removing
the bar and AGN components from the models. Neglecting bars can result in a
overestimation of the bulge-to-total luminosity ratio of a factor of two, even
if the resolution is low. Similar effects result when bright AGN are not
considered in the models, but only when the resolution is high. I also show
that the structural parameters of more distant galaxies can in general be
reliably retrieved, at least up to the point where the physical spatial
resolution is about 1.5 Kpc, but bulge parameters are prone to errors if its
effective radius is small compared to the seeing radius, and might suffer from
systematic effects. I briefly discuss the consequences of these results to our
knowledge of the stellar mass budget in the local universe, and finish by
showing preliminary results from a large SDSS sample on the dichotomy between
classical and pseudo-bulges.
| astro-ph | image decomposition of galaxies is now routinely used to estimate the structural parameters of galactic components in this work i address questions on the reliability of this technique in particular do bars and agn need to be taken into account to obtain the structural parameters of bulges and discs and to what extent can we trust image decomposition when the physical spatial resolution is relatively poor with this aim i performed multicomponent barbulgediscagn image decomposition of a sample of very nearby galaxies and their artificially redshifted images and verified the effects of removing the bar and agn components from the models neglecting bars can result in a overestimation of the bulgetototal luminosity ratio of a factor of two even if the resolution is low similar effects result when bright agn are not considered in the models but only when the resolution is high i also show that the structural parameters of more distant galaxies can in general be reliably retrieved at least up to the point where the physical spatial resolution is about 15 kpc but bulge parameters are prone to errors if its effective radius is small compared to the seeing radius and might suffer from systematic effects i briefly discuss the consequences of these results to our knowledge of the stellar mass budget in the local universe and finish by showing preliminary results from a large sdss sample on the dichotomy between classical and pseudobulges | [['image', 'decomposition', 'of', 'galaxies', 'is', 'now', 'routinely', 'used', 'to', 'estimate', 'the', 'structural', 'parameters', 'of', 'galactic', 'components', 'in', 'this', 'work', 'i', 'address', 'questions', 'on', 'the', 'reliability', 'of', 'this', 'technique', 'in', 'particular', 'do', 'bars', 'and', 'agn', 'need', 'to', 'be', 'taken', 'into', 'account', 'to', 'obtain', 'the', 'structural', 'parameters', 'of', 'bulges', 'and', 'discs', 'and', 'to', 'what', 'extent', 'can', 'we', 'trust', 'image', 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708.2843 | The Impossibility Of Secure Two-Party Classical Computation | We present attacks that show that unconditionally secure two-party classical
computation is impossible for many classes of function. Our analysis applies to
both quantum and relativistic protocols. We illustrate our results by showing
the impossibility of oblivious transfer.
| quant-ph cs.CR | we present attacks that show that unconditionally secure twoparty classical computation is impossible for many classes of function our analysis applies to both quantum and relativistic protocols we illustrate our results by showing the impossibility of oblivious transfer | [['we', 'present', 'attacks', 'that', 'show', 'that', 'unconditionally', 'secure', 'twoparty', 'classical', 'computation', 'is', 'impossible', 'for', 'many', 'classes', 'of', 'function', 'our', 'analysis', 'applies', 'to', 'both', 'quantum', 'and', 'relativistic', 'protocols', 'we', 'illustrate', 'our', 'results', 'by', 'showing', 'the', 'impossibility', 'of', 'oblivious', 'transfer']] | [-0.1833381248748322, 0.01278032345305148, -0.11640381185632002, 0.12182583318300251, 0.022470585805805104, -0.2462745316718754, 0.09415898495353758, 0.3706258542615136, -0.24750401099261485, -0.27345565632966, 0.0650700236774834, -0.205887625729175, -0.20941549853274696, 0.3286310099065304, -0.11999356850758072, 0.16031756217738516, 0.08073171799218185, -0.08194805564064729, -0.018099537462388213, -0.31371929780212476, 0.3849644861919315, -0.009489759775246248, 0.27356323501781415, 0.08527467263813474, 0.057511308463290334, 0.06759645800890499, -0.040794059278835594, -0.04979515585460161, -0.095630321959968, 0.11868042334620106, 0.314350498448077, 0.19768599956296384, 0.2694414220750332, -0.37498300426982734, -0.20445226627941193, 0.11363023181298845, 0.124999509585139, 0.2331774555832932, -0.10193200769687169, -0.2623674855567515, 0.17392631465765207, -0.2298903718811313, -0.05930974077751958, -0.19520617131830045, -0.023865410273796635, 0.027521182635897083, -0.26397186191752553, 0.03999394648953488, 0.13378034360510738, 0.002241360170668677, -0.0011838809341976517, -0.02883705104652204, 0.06804082455652717, 0.14685083570350943, -0.0148700285813232, -0.039242041603613054, 0.1482888439265815, -0.08439050217796314, -0.2676786668598652, 0.36661296416270106, -0.01931041290395354, -0.1788892537649525, 0.1964466017548387, -0.048891860538309344, -0.16684060249673693, 0.026017594543334684, 0.10213202657178044, 0.168085580330195, -0.051494999862227, 0.05729878702243839, -0.11287241633736382, 0.22430354121484256, -0.014959892110997125, 0.06451288691574805, 0.08425721290864442, 0.05644678611210302, 0.08473148947967657, 0.18258028156981854, -0.006805866319490106, -0.22527869418263435, -0.3336681927505292, -0.2185334188765601, -0.23253262332199434, 0.0926377196875891, -0.0697204382890241, -0.07391531612895626, 0.31144018129041223, 0.26256875667298263, 0.11830787338610542, 0.1691360818222165, 0.41390002043427604, 0.05449501955023918, -0.0038243505221448445, 0.21918588596102045, 0.269375873447739, 0.11929172281126835, 0.06383027102013952, -0.17769679565619872, 0.12028633935475036, 0.01955563227008832] |
708.2844 | Dynamics of Femtosecond Electron Bunches | In the laser wakefield accelerator (LWFA) a short intense laser pulse, with a
duration of the order of a plasma wave period, excites an unusually strong
plasma wake wave (laser wakefield). Recent experiments on laser wakefield
acceleration [Nature (London) 431, p.535, p.538, p.541 (2004)] demonstrated
generation of ultra-short (with a duration of a few femtoseconds) relativistic
electron bunches with relatively low energy spread of the order of a few
percent. We have studied the dynamics of such bunches in vacuum and in laser
wakefield. The results show strong bunch dynamics already on a few millimeters
propagation distance in both cases. In vacuum, the bunch radius and emittance
quickly grow. The latter worsens the focusability of the bunch. We found that
when a femtosecond bunch is accelerated in a channel-guided laser wakefield,
for realistic bunch lengths, the bunch length is approximately conserved.
However, the spread in betatron frequencies leads to fast betatron phase mixing
in the bunch envelope for on-axis injection. When bunch is injected in a laser
wakefield off-axis, the bunch decoherence results in considerable increase in
the normalized bunch emittance, and, in some cases, in increase in the energy
spread, after acceleration. We also discuss a possible two-stage laser
wakefield accelerator.
| physics.plasm-ph physics.acc-ph | in the laser wakefield accelerator lwfa a short intense laser pulse with a duration of the order of a plasma wave period excites an unusually strong plasma wake wave laser wakefield recent experiments on laser wakefield acceleration nature london 431 p535 p538 p541 2004 demonstrated generation of ultrashort with a duration of a few femtoseconds relativistic electron bunches with relatively low energy spread of the order of a few percent we have studied the dynamics of such bunches in vacuum and in laser wakefield the results show strong bunch dynamics already on a few millimeters propagation distance in both cases in vacuum the bunch radius and emittance quickly grow the latter worsens the focusability of the bunch we found that when a femtosecond bunch is accelerated in a channelguided laser wakefield for realistic bunch lengths the bunch length is approximately conserved however the spread in betatron frequencies leads to fast betatron phase mixing in the bunch envelope for onaxis injection when bunch is injected in a laser wakefield offaxis the bunch decoherence results in considerable increase in the normalized bunch emittance and in some cases in increase in the energy spread after acceleration we also discuss a possible twostage laser wakefield accelerator | [['in', 'the', 'laser', 'wakefield', 'accelerator', 'lwfa', 'a', 'short', 'intense', 'laser', 'pulse', 'with', 'a', 'duration', 'of', 'the', 'order', 'of', 'a', 'plasma', 'wave', 'period', 'excites', 'an', 'unusually', 'strong', 'plasma', 'wake', 'wave', 'laser', 'wakefield', 'recent', 'experiments', 'on', 'laser', 'wakefield', 'acceleration', 'nature', 'london', '431', 'p535', 'p538', 'p541', '2004', 'demonstrated', 'generation', 'of', 'ultrashort', 'with', 'a', 'duration', 'of', 'a', 'few', 'femtoseconds', 'relativistic', 'electron', 'bunches', 'with', 'relatively', 'low', 'energy', 'spread', 'of', 'the', 'order', 'of', 'a', 'few', 'percent', 'we', 'have', 'studied', 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708.2845 | Transport of a quantum degenerate heteronuclear Bose-Fermi mixture in a
harmonic trap | We report on the transport of mixed quantum degenerate gases of bosonic 87Rb
and fermionic 40K in a harmonic potential provided by a modified QUIC trap. The
samples are transported over a distance of 6 mm to the geometric center of the
anti-Helmholtz coils of the QUIC trap. This transport mechanism was implemented
by a small modification of the QUIC trap and is free of losses and heating. It
allows all experiments using QUIC traps to use the highly homogeneous magnetic
fields that can be created in the center of a QUIC trap and improves the
optical access to the atoms, e.g., for experiments with optical lattices. This
mechanism may be cascaded to cover even larger distances for applications with
quantum degenerate samples.
| cond-mat.other | we report on the transport of mixed quantum degenerate gases of bosonic 87rb and fermionic 40k in a harmonic potential provided by a modified quic trap the samples are transported over a distance of 6 mm to the geometric center of the antihelmholtz coils of the quic trap this transport mechanism was implemented by a small modification of the quic trap and is free of losses and heating it allows all experiments using quic traps to use the highly homogeneous magnetic fields that can be created in the center of a quic trap and improves the optical access to the atoms eg for experiments with optical lattices this mechanism may be cascaded to cover even larger distances for applications with quantum degenerate samples | [['we', 'report', 'on', 'the', 'transport', 'of', 'mixed', 'quantum', 'degenerate', 'gases', 'of', 'bosonic', '87rb', 'and', 'fermionic', '40k', 'in', 'a', 'harmonic', 'potential', 'provided', 'by', 'a', 'modified', 'quic', 'trap', 'the', 'samples', 'are', 'transported', 'over', 'a', 'distance', 'of', '6', 'mm', 'to', 'the', 'geometric', 'center', 'of', 'the', 'antihelmholtz', 'coils', 'of', 'the', 'quic', 'trap', 'this', 'transport', 'mechanism', 'was', 'implemented', 'by', 'a', 'small', 'modification', 'of', 'the', 'quic', 'trap', 'and', 'is', 'free', 'of', 'losses', 'and', 'heating', 'it', 'allows', 'all', 'experiments', 'using', 'quic', 'traps', 'to', 'use', 'the', 'highly', 'homogeneous', 'magnetic', 'fields', 'that', 'can', 'be', 'created', 'in', 'the', 'center', 'of', 'a', 'quic', 'trap', 'and', 'improves', 'the', 'optical', 'access', 'to', 'the', 'atoms', 'eg', 'for', 'experiments', 'with', 'optical', 'lattices', 'this', 'mechanism', 'may', 'be', 'cascaded', 'to', 'cover', 'even', 'larger', 'distances', 'for', 'applications', 'with', 'quantum', 'degenerate', 'samples']] | [-0.10802024220517738, 0.21474544931869438, -0.02372304093645416, -0.01590375723109043, 0.0046549024840256545, -0.1659842347385498, 0.06275676079548714, 0.38542441704227187, -0.24442781544313197, -0.2717159853384989, 0.06383744762203376, -0.2745026467251828, -0.03331177554479459, 0.24384890990407487, -0.007587914885120179, 0.04361311944459027, 0.0594316743904861, -0.01665569689669987, -0.03348542371602933, -0.26692708773250745, 0.2688667095395002, 0.09095435043441026, 0.27845086032009825, 0.07655317293256672, 0.10264748350406687, 0.0010357043796741382, 0.070023445401159, -0.001258016897108012, -0.08969577346253824, 0.16591624779308714, 0.1844225082417753, -0.0030844322163460216, 0.23747053653062358, -0.45521662588708284, -0.24362235009098593, 0.10276320417661493, 0.14049732263379341, 0.17888033333257203, -0.08425303911733464, -0.2785206704392908, 0.010688993385122195, -0.1640054514495338, -0.13511448401988038, -0.08015127788956572, 0.003291760316701621, 0.0678325918298669, -0.3010949341152469, 0.05099250273816893, 0.04719435105694655, 0.08576303727288799, -0.08463021705298102, -0.06304472315738477, 0.032119494363120414, 0.0827336199221966, -0.08257721856471181, 0.0167839485334187, 0.19015654722773812, -0.1194750855002946, -0.08503334059349708, 0.3997388123193892, -0.09262241958735162, -0.1422080076602477, 0.1862481806684679, -0.1322416960095184, -0.009209344303613998, 0.13010473446390494, 0.18573615127583828, 0.09635518451705878, -0.13599176364912977, 0.05677157835689434, -0.042165002702334066, 0.13327900704178142, 0.09945255635321383, 0.012067878577191897, 0.23076080626285658, 0.14513410261748888, 0.059234482096484485, 0.20251123507401142, -0.15079384411042637, -0.07797168634029303, -0.24342643632364225, -0.1555299746342064, -0.21021799025470314, 0.048302924463040825, -0.014118364292321862, -0.1278197795712972, 0.3777441597520942, 0.12286136947606303, 0.1995958238007213, -0.06884865220673989, 0.29266005545491125, 0.0810313734388721, 0.13764884933162996, 0.05223560769004914, 0.24459202595176252, 0.14751905904007637, 0.08767471795549571, -0.23739275376963603, -0.037650137488556105, 0.019912738502555625] |
708.2846 | On the origin of families of quarks and leptons - predictions for four
families | The approach unifying all the internal degrees of freedom--proposed by one of
us--is offering a new way of understanding families of quarks and leptons: A
part of the starting Lagrange density in d(=1+13), which includes two kinds of
spin connection fields--the gauge fields of two types of Clifford algebra
objects--transforms the right handed quarks and leptons into the left handed
ones manifesting in d=1+3 the Yukawa couplings of the Standard model. We study
the influence of the way of breaking symmetries on the Yukawa couplings and
estimate properties of the fourth family--the quark masses and the mixing
matrix, investigating the possibility that the fourth family of quarks and
leptons appears at low enough energies to be observable with the new generation
of accelerators.
| hep-ph | the approach unifying all the internal degrees of freedomproposed by one of usis offering a new way of understanding families of quarks and leptons a part of the starting lagrange density in d113 which includes two kinds of spin connection fieldsthe gauge fields of two types of clifford algebra objectstransforms the right handed quarks and leptons into the left handed ones manifesting in d13 the yukawa couplings of the standard model we study the influence of the way of breaking symmetries on the yukawa couplings and estimate properties of the fourth familythe quark masses and the mixing matrix investigating the possibility that the fourth family of quarks and leptons appears at low enough energies to be observable with the new generation of accelerators | [['the', 'approach', 'unifying', 'all', 'the', 'internal', 'degrees', 'of', 'freedomproposed', 'by', 'one', 'of', 'usis', 'offering', 'a', 'new', 'way', 'of', 'understanding', 'families', 'of', 'quarks', 'and', 'leptons', 'a', 'part', 'of', 'the', 'starting', 'lagrange', 'density', 'in', 'd113', 'which', 'includes', 'two', 'kinds', 'of', 'spin', 'connection', 'fieldsthe', 'gauge', 'fields', 'of', 'two', 'types', 'of', 'clifford', 'algebra', 'objectstransforms', 'the', 'right', 'handed', 'quarks', 'and', 'leptons', 'into', 'the', 'left', 'handed', 'ones', 'manifesting', 'in', 'd13', 'the', 'yukawa', 'couplings', 'of', 'the', 'standard', 'model', 'we', 'study', 'the', 'influence', 'of', 'the', 'way', 'of', 'breaking', 'symmetries', 'on', 'the', 'yukawa', 'couplings', 'and', 'estimate', 'properties', 'of', 'the', 'fourth', 'familythe', 'quark', 'masses', 'and', 'the', 'mixing', 'matrix', 'investigating', 'the', 'possibility', 'that', 'the', 'fourth', 'family', 'of', 'quarks', 'and', 'leptons', 'appears', 'at', 'low', 'enough', 'energies', 'to', 'be', 'observable', 'with', 'the', 'new', 'generation', 'of', 'accelerators']] | [-0.1340185665541281, 0.2618694834813665, -0.0320257249848633, 0.09879879544141813, -0.06990301215003039, -0.12155312808798784, 0.018135783858439426, 0.29117605453199247, -0.2577368737695644, -0.3102479796477799, 0.024341143085621297, -0.27823691410643947, -0.02839023822186499, 0.11047757095045616, 0.07915212414464202, -0.01215260643196308, -0.0010567577171013138, 0.009694352712651412, -0.09637978694291185, -0.22585473784198196, 0.33839436571046677, -0.025150752105450227, 0.20035946519524492, 0.06555416393961946, 0.11955095365469864, -0.015563182281211839, -0.025302750228162287, -0.10400761495012853, -0.04384105178850389, 0.12290637033214098, 0.12216299261367028, 0.037500892225179376, 0.15678535213188852, -0.40254179627429376, -0.12432775984841825, 0.1001005554058731, 0.12454417273323289, 0.08075898208840893, -0.07626922379378072, -0.3019013794117323, 0.05993716275098465, -0.21098567228922147, -0.18846993492146702, -0.08852341067664013, -0.0426572307360248, -0.047281344062096234, -0.29790510636580697, 0.0687993035841165, 0.06310835675734995, 0.01765373599384043, -0.007734283994315035, -0.1790001501775173, -0.08461711933378573, 0.08485560338959981, 0.15031866969094784, -0.0327672164007169, 0.08624713001249878, -0.20962069560852598, -0.16529825357404554, 0.43492547237320206, -0.05531189469147032, -0.19982661707800323, 0.1895699683710996, -0.17988657183013856, -0.14806744466156904, 0.07715369380173921, 0.19967405894234524, 0.10053422186184295, -0.19916791577381476, 0.14941100012959904, -0.04105350440387788, 0.10069283758146073, 0.09063349146459063, 0.07415391207609515, 0.28458631714269267, 0.16344887307071584, 0.05760378334513408, 0.06190253053377461, -0.039674022999568445, -0.08958696582654523, -0.3810762754499407, -0.1655967608607232, -0.09677853212017029, 0.05241606040615776, -0.11074778685971239, -0.1357721869855472, 0.5219285268478601, 0.12799361105455812, 0.19985729696671084, -0.003645582976001236, 0.25731837296842647, 0.062224779167544035, 0.11921313794929597, 0.03284731871937796, 0.2587256910579311, 0.2098356398528884, 0.07230584040457794, -0.21305787270509843, -0.02315174171679369, 0.12043412448246411] |
708.2847 | Physical Properties of Red Supergiants | Red supergiants (RSGs) are an evolved stage in the life of intermediate
massive stars (<25Mo). For many years their location in the H-R diagram was at
variance with the evolutionary models. Using the MARCS stellar atmosphere
models, we have determined new effective temperatures and bolometric
luminosities for RSGs in the Milky Way, LMC, and SMC, and our work has resulted
in much better agreement with the evolutionary models. We have also found
evidence of significant visual extinction due to circumstellar dust. Although
in the Milky Way the RSGs contribute only a small fraction (<1%) of the dust to
the interstellar medium (ISM), in starburst galaxies or galaxies at large
look-back times, we expect that RSGs may be the main dust source. We are in the
process of extending this work now to RSGs of higher and lower metallicities
using the galaxies M31 and WLM.
| astro-ph | red supergiants rsgs are an evolved stage in the life of intermediate massive stars 25mo for many years their location in the hr diagram was at variance with the evolutionary models using the marcs stellar atmosphere models we have determined new effective temperatures and bolometric luminosities for rsgs in the milky way lmc and smc and our work has resulted in much better agreement with the evolutionary models we have also found evidence of significant visual extinction due to circumstellar dust although in the milky way the rsgs contribute only a small fraction 1 of the dust to the interstellar medium ism in starburst galaxies or galaxies at large lookback times we expect that rsgs may be the main dust source we are in the process of extending this work now to rsgs of higher and lower metallicities using the galaxies m31 and wlm | [['red', 'supergiants', 'rsgs', 'are', 'an', 'evolved', 'stage', 'in', 'the', 'life', 'of', 'intermediate', 'massive', 'stars', '25mo', 'for', 'many', 'years', 'their', 'location', 'in', 'the', 'hr', 'diagram', 'was', 'at', 'variance', 'with', 'the', 'evolutionary', 'models', 'using', 'the', 'marcs', 'stellar', 'atmosphere', 'models', 'we', 'have', 'determined', 'new', 'effective', 'temperatures', 'and', 'bolometric', 'luminosities', 'for', 'rsgs', 'in', 'the', 'milky', 'way', 'lmc', 'and', 'smc', 'and', 'our', 'work', 'has', 'resulted', 'in', 'much', 'better', 'agreement', 'with', 'the', 'evolutionary', 'models', 'we', 'have', 'also', 'found', 'evidence', 'of', 'significant', 'visual', 'extinction', 'due', 'to', 'circumstellar', 'dust', 'although', 'in', 'the', 'milky', 'way', 'the', 'rsgs', 'contribute', 'only', 'a', 'small', 'fraction', '1', 'of', 'the', 'dust', 'to', 'the', 'interstellar', 'medium', 'ism', 'in', 'starburst', 'galaxies', 'or', 'galaxies', 'at', 'large', 'lookback', 'times', 'we', 'expect', 'that', 'rsgs', 'may', 'be', 'the', 'main', 'dust', 'source', 'we', 'are', 'in', 'the', 'process', 'of', 'extending', 'this', 'work', 'now', 'to', 'rsgs', 'of', 'higher', 'and', 'lower', 'metallicities', 'using', 'the', 'galaxies', 'm31', 'and', 'wlm']] | [0.0020822312669932013, 0.1032793857974765, -0.09758751538659756, 0.10720173755025068, -0.08071965023150875, -0.021255930067531556, 0.07816921032159978, 0.4943551559052948, -0.1135937502905209, -0.35544870835858294, 0.023818093936521716, -0.27655747743685627, -0.02189567137328494, 0.1794584738268491, -0.1041770618467126, -0.038484841416195396, 0.08128908590879291, -0.12078355662662135, -0.014913615183710741, -0.35109917714402805, 0.28375478906996754, 0.06685051151887617, 0.10279569718598698, -0.06846708377836169, 0.03505475704272006, -0.2040897251087396, -0.08499493052497403, -0.0720447403695693, -0.15955227877510778, 0.06284437274249892, 0.26011342607365706, 0.1092638023223521, 0.211916793765138, -0.3844164352889897, -0.24250748764542449, 0.10915452371571316, 0.2710901805597435, 0.0891715745609771, -0.08655845871221067, -0.21351321289775013, 0.07952699422134578, -0.20149973430670798, -0.17478051354151425, 0.08761611392563079, 0.07156432608220105, 0.016765880381475046, -0.2017061893065046, 0.12227546852267955, -0.002751199337783166, 0.15235688657008317, -0.10699760993722723, -0.17573648086383603, -0.07546430268363717, 0.1098969856830081, 0.04450493787246362, 0.07510165371544038, 0.15459331950559216, -0.16213561133837276, 0.019283459392479725, 0.4265364922531363, -0.10730017308378592, 0.05182300495350015, 0.27428476515019107, -0.19508248019782412, -0.18905806882927814, 0.1096968904344572, 0.15471927341746372, 0.1400330655548411, -0.20766465578668025, 0.005198583079214182, -0.003341511991392407, 0.16700885040659663, 0.036406716234826796, 0.08279310711678692, 0.3115256843383476, 0.1268393269807954, 0.01913738240667347, 0.07231258370787448, -0.18664090962718344, -0.08478109682780793, -0.1769809731372839, -0.12213995687003869, -0.09010421443640047, 0.07163022850808273, -0.21896364499389165, -0.08499604360096985, 0.3065973344071406, 0.15698965005786805, 0.22346061047735727, 0.07487722030297543, 0.32490341700354797, 0.10065641419108336, 0.1360084291906484, 0.170018578265121, 0.31934674654298256, 0.1572479368268331, 0.1293699539665896, -0.2196351739791377, 0.13110999350384292, -1.6154140919550424e-05] |
708.2848 | PKS1932-46: a radio source in an interacting group? | We present the results of a multiwavelength study of the z=0.23 radio source
PKS1932-46. VIMOS IFU spectroscopy is used to study the morphology, kinematics
and ionisation state of the EELR surrounding this source, and also a companion
galaxy at a similar redshift. Near- and far-IR imaging observations obtained
using the NTT and SPITZER are used to analyse the underlying galaxy
morphologies and the nature of the AGN. The host galaxy is identified as an ~M*
elliptical. Combining Spitzer mid-IR with X-ray, optical and near-IR imaging
observations of this source, we conclude that its AGN is underluminous for a
radio source of this type, despite its status as a BLRG. However, given its
relatively large [OIII] luminosity it is likely that the AGN was substantially
more luminous in the recent past (<10^4 years ago). The EELR is remarkably
extensive and complex, reminiscent of the systems observed around sources at
higher redshifts/radio powers, and the gas is predominantly ionised by a
mixture of AGN photoionisation and emission from young stars. We confirm the
presence of a series of star-forming knots extending N-S from the host galaxy,
with more prodigious star formation occuring in the merging companion galaxy to
the northeast, which has sufficient luminosity at mid- to far-IR wavelengths to
be classified as a LIRG. The most plausible explanation of our observations is
that PKS1932-46 is a member of an interacting galaxy group, and that the
impressive EELR is populated by star-forming, tidal debris. We suggest that the
AGN itself may currently be fuelled by material associated either with the
current interaction, or with a previous merger event. Surprisingly, it is the
companion object, rather than the radio source host galaxy, which is undergoing
the bulk of the star formation activity within the group.
| astro-ph | we present the results of a multiwavelength study of the z023 radio source pks193246 vimos ifu spectroscopy is used to study the morphology kinematics and ionisation state of the eelr surrounding this source and also a companion galaxy at a similar redshift near and farir imaging observations obtained using the ntt and spitzer are used to analyse the underlying galaxy morphologies and the nature of the agn the host galaxy is identified as an m elliptical combining spitzer midir with xray optical and nearir imaging observations of this source we conclude that its agn is underluminous for a radio source of this type despite its status as a blrg however given its relatively large oiii luminosity it is likely that the agn was substantially more luminous in the recent past 104 years ago the eelr is remarkably extensive and complex reminiscent of the systems observed around sources at higher redshiftsradio powers and the gas is predominantly ionised by a mixture of agn photoionisation and emission from young stars we confirm the presence of a series of starforming knots extending ns from the host galaxy with more prodigious star formation occuring in the merging companion galaxy to the northeast which has sufficient luminosity at mid to farir wavelengths to be classified as a lirg the most plausible explanation of our observations is that pks193246 is a member of an interacting galaxy group and that the impressive eelr is populated by starforming tidal debris we suggest that the agn itself may currently be fuelled by material associated either with the current interaction or with a previous merger event surprisingly it is the companion object rather than the radio source host galaxy which is undergoing the bulk of the star formation activity within the group | [['we', 'present', 'the', 'results', 'of', 'a', 'multiwavelength', 'study', 'of', 'the', 'z023', 'radio', 'source', 'pks193246', 'vimos', 'ifu', 'spectroscopy', 'is', 'used', 'to', 'study', 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