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711.3208 | The Riemann-Hilbert approach to double scaling limit of random matrix
eigenvalues near the "birth of a cut" transition | In this paper we studied the double scaling limit of a random unitary matrix
ensemble near a singular point where a new cut is emerging from the support of
the equilibrium measure. We obtained the asymptotic of the correlation kernel
by using the Riemann-Hilbert approach. We have shown that the kernel near the
critical point is given by the correlation kernel of a random unitary matrix
ensemble with weight $e^{-x^{2\nu}}$. This provides a rigorous proof of the
previous results of Eynard.
| math-ph math.MP | in this paper we studied the double scaling limit of a random unitary matrix ensemble near a singular point where a new cut is emerging from the support of the equilibrium measure we obtained the asymptotic of the correlation kernel by using the riemannhilbert approach we have shown that the kernel near the critical point is given by the correlation kernel of a random unitary matrix ensemble with weight ex2nu this provides a rigorous proof of the previous results of eynard | [['in', 'this', 'paper', 'we', 'studied', 'the', 'double', 'scaling', 'limit', 'of', 'a', 'random', 'unitary', 'matrix', 'ensemble', 'near', 'a', 'singular', 'point', 'where', 'a', 'new', 'cut', 'is', 'emerging', 'from', 'the', 'support', 'of', 'the', 'equilibrium', 'measure', 'we', 'obtained', 'the', 'asymptotic', 'of', 'the', 'correlation', 'kernel', 'by', 'using', 'the', 'riemannhilbert', 'approach', 'we', 'have', 'shown', 'that', 'the', 'kernel', 'near', 'the', 'critical', 'point', 'is', 'given', 'by', 'the', 'correlation', 'kernel', 'of', 'a', 'random', 'unitary', 'matrix', 'ensemble', 'with', 'weight', 'ex2nu', 'this', 'provides', 'a', 'rigorous', 'proof', 'of', 'the', 'previous', 'results', 'of', 'eynard']] | [-0.10492577017139411, 0.07683520831051283, -0.16664640356320887, 0.032494284509448336, 0.007562261604471132, -0.09614741698023863, 0.10408610239828704, 0.336140789790079, -0.2511825926136225, -0.1851136156823486, 0.10059056785976281, -0.2894435016438365, -0.2143408517120406, 0.1494404238765128, -0.013978577119996772, 0.1331506431568414, 0.06665972140035592, 0.07369618171360344, -0.13149453945807182, -0.1988648931728676, 0.39775628596544266, 0.070422011858318, 0.2772363826748915, 0.04092517668614164, 0.11036563583184034, 0.04394086169777438, -0.041168459958862515, 0.0017505654221167787, -0.09012437208775737, 0.13651185366907156, 0.23101033297862159, 0.0812800829531625, 0.2751208915608004, -0.3607038334477693, -0.18373691719025373, 0.12489003887167201, 0.14516332934144885, 0.07500697375508025, -0.030021716409828515, -0.27382264405023304, 0.10094746078830212, -0.1481769372127019, -0.1800450313545298, -0.05591864834423177, -0.022470701998099685, 0.014649432396981864, -0.30649701193906365, 0.0616894481878262, 0.1025970047339797, 0.05085773424943909, -0.005936044512782246, -0.12830616636783815, 0.07132775156060234, 0.09102652840665541, -0.009140976885100826, 0.050216569850454106, 0.10736914957524277, -0.11661343014566228, -0.07196856159571326, 0.2991775947768474, -0.08485402235528454, -0.17831009352812544, 0.13733632196090184, -0.1418023473408539, -0.1271704395127017, 0.09263469185680151, 0.10137224395875818, 0.11124848381150514, -0.16481339166639372, 0.14530976470559837, -0.1155650815795525, 0.09552671471974464, 0.0465200450271368, -0.027961348998360336, 0.15788076909375376, 0.15424412542488425, 0.08628227793087717, 0.18059754373098258, -0.08247134765260852, -0.13433238971192624, -0.3201937676873058, -0.15345457663061096, -0.2631614318583161, 0.09799517681822181, -0.16007620104355738, -0.21603075788698334, 0.41630188492126763, 0.14810812799842096, 0.26189581393264233, 0.10096589749446139, 0.2216189752332866, 0.20885419147089124, 0.03967453551158542, 0.07557397178607062, 0.21872626133263112, 0.16317994661512786, 0.06579817852471023, -0.21226774512033444, 0.009075925742581602, 0.14889393622870556] |
711.3209 | Influence of AGN Outbursts on the Surrounding Galaxies | We study the influence of a strong AGN outburst on the surrounding galaxies.
The AGN is assumed to reside in a group of galaxies, and an outburst excites a
shock wave in the hot gas in the group. We calculate the impact of the shock
wave on the galaxies. We find that if the energy of the outburst is extremely
large (E_AGN ~6x10^61 erg) as the one recently observed in clusters, the impact
is strong enough to strip the cold interstellar medium in the disc of the
galaxies in the inner region of the group. Moreover, even in the outer region
of the group, the warm gas in the halo of the galaxies would be stripped, even
if the energy of the outburst is ~6x10^60 erg. These would decrease star
formation activity of the galaxies. If these galaxies fall into the group
centre through dynamical friction and their interstellar medium is the fuel of
the supermassive black hole in the AGN, the outburst would serve as feedback.
While this mechanism works only when E_AGN is extremely large, such outbursts
have not been observed in groups at low redshift; it would work at high
redshift rather than at low redshift.
| astro-ph | we study the influence of a strong agn outburst on the surrounding galaxies the agn is assumed to reside in a group of galaxies and an outburst excites a shock wave in the hot gas in the group we calculate the impact of the shock wave on the galaxies we find that if the energy of the outburst is extremely large e_agn 6x1061 erg as the one recently observed in clusters the impact is strong enough to strip the cold interstellar medium in the disc of the galaxies in the inner region of the group moreover even in the outer region of the group the warm gas in the halo of the galaxies would be stripped even if the energy of the outburst is 6x1060 erg these would decrease star formation activity of the galaxies if these galaxies fall into the group centre through dynamical friction and their interstellar medium is the fuel of the supermassive black hole in the agn the outburst would serve as feedback while this mechanism works only when e_agn is extremely large such outbursts have not been observed in groups at low redshift it would work at high redshift rather than at low redshift | [['we', 'study', 'the', 'influence', 'of', 'a', 'strong', 'agn', 'outburst', 'on', 'the', 'surrounding', 'galaxies', 'the', 'agn', 'is', 'assumed', 'to', 'reside', 'in', 'a', 'group', 'of', 'galaxies', 'and', 'an', 'outburst', 'excites', 'a', 'shock', 'wave', 'in', 'the', 'hot', 'gas', 'in', 'the', 'group', 'we', 'calculate', 'the', 'impact', 'of', 'the', 'shock', 'wave', 'on', 'the', 'galaxies', 'we', 'find', 'that', 'if', 'the', 'energy', 'of', 'the', 'outburst', 'is', 'extremely', 'large', 'e_agn', '6x1061', 'erg', 'as', 'the', 'one', 'recently', 'observed', 'in', 'clusters', 'the', 'impact', 'is', 'strong', 'enough', 'to', 'strip', 'the', 'cold', 'interstellar', 'medium', 'in', 'the', 'disc', 'of', 'the', 'galaxies', 'in', 'the', 'inner', 'region', 'of', 'the', 'group', 'moreover', 'even', 'in', 'the', 'outer', 'region', 'of', 'the', 'group', 'the', 'warm', 'gas', 'in', 'the', 'halo', 'of', 'the', 'galaxies', 'would', 'be', 'stripped', 'even', 'if', 'the', 'energy', 'of', 'the', 'outburst', 'is', '6x1060', 'erg', 'these', 'would', 'decrease', 'star', 'formation', 'activity', 'of', 'the', 'galaxies', 'if', 'these', 'galaxies', 'fall', 'into', 'the', 'group', 'centre', 'through', 'dynamical', 'friction', 'and', 'their', 'interstellar', 'medium', 'is', 'the', 'fuel', 'of', 'the', 'supermassive', 'black', 'hole', 'in', 'the', 'agn', 'the', 'outburst', 'would', 'serve', 'as', 'feedback', 'while', 'this', 'mechanism', 'works', 'only', 'when', 'e_agn', 'is', 'extremely', 'large', 'such', 'outbursts', 'have', 'not', 'been', 'observed', 'in', 'groups', 'at', 'low', 'redshift', 'it', 'would', 'work', 'at', 'high', 'redshift', 'rather', 'than', 'at', 'low', 'redshift']] | [-0.101919476626417, 0.13611249879356294, -0.09213327274729426, 0.11121621880835543, -0.10591344092733776, -0.017125561480553678, 0.03285198752792218, 0.42918727931876977, -0.15571426471981864, -0.30076811332733205, 0.07896445965609299, -0.3033660421100182, -0.008358800673905091, 0.18095007822729456, -0.017381062626373022, -0.06134314476273572, 0.016535652130364606, -0.02522915709310044, -0.03751496755889653, -0.29069932371330187, 0.32256770349788266, 0.10808241149315086, 0.16170649260569078, 0.007799286822764537, 0.08747924639521024, -0.09918356792619214, -0.019225430603210743, -0.05446203190009468, -0.1100794031985107, -0.01692914108190542, 0.25825206900063236, 0.08717033403734557, 0.29035506179699533, -0.41605638470023104, -0.24609588858886408, 0.0935573108243541, 0.20205810216183845, 0.05494454794276792, -0.08516309733789128, -0.23553595952973225, 0.0695323112158057, -0.2310979916785772, -0.1547136886845319, 0.10707442385072892, 0.05649888273089742, 0.021456109637587453, -0.181559082132597, 0.13769007474661638, 0.051388574899502625, 0.018770552268968177, -0.10581391074527532, -0.008767548232124401, -0.08431376537952859, 0.08057496016561531, 0.07946247030288363, 0.07703218567423904, 0.23553649372158525, -0.18640492228814998, 0.0464045175184042, 0.446559895754147, -0.04416551114371918, 0.00976930269255088, 0.24044296184602457, -0.2767877972231079, -0.16497260237542483, 0.16088834227277682, 0.18648016933912936, 0.08346742907156929, -0.08952361655172307, 0.018806301369869077, -0.060922185567846426, 0.19214851528000182, 0.0034560370044066356, 0.06590676662297203, 0.3138622401903073, 0.11357704849603276, 0.05803274949893164, 0.12122890863221329, -0.1625061983935153, 0.012413424028991125, -0.23890003872892032, -0.11143247130303047, -0.15772866618174772, 0.08234412459804354, -0.12788972531740841, -0.1096165522085264, 0.3628064720867536, 0.07247396312558498, 0.22528161094643367, 0.00709935017168904, 0.28720128445480114, 0.10019930511689149, 0.11531185037217652, 0.1660519570351029, 0.36329056814981575, 0.15250637042694368, 0.07395532459307175, -0.2660808268385247, 0.10190059050726585, 0.02582625987438055] |
711.321 | Brane Induced Gravity: Codimension-2 | We review the results of arXiv:hep-th/0703190, on brane induced gravity (BIG)
in 6D. Among a large diversity of regulated codimension-2 branes, we find that
for near-critical tensions branes live inside very deep throats which
efficiently compactify the angular dimension. In there, 4D gravity first
changes to 5D, and only later to 6D. The crossover from 4D to 5D is independent
of the tension, but the crossover from 5D to 6D is not. This shows how the
vacuum energy problem manifests in BIG: instead of tuning vacuum energy to
adjust the 4D curvature, generically one must tune it to get the desired
crossover scales and the hierarchy between the scales governing the 4D \to 5D
\to 6D transitions. In the near-critical limit, linearized perturbation theory
remains under control below the crossover scale, and we find that linearized
gravity around the vacuum looks like a scalar-tensor theory.
| hep-th astro-ph gr-qc hep-ph | we review the results of arxivhepth0703190 on brane induced gravity big in 6d among a large diversity of regulated codimension2 branes we find that for nearcritical tensions branes live inside very deep throats which efficiently compactify the angular dimension in there 4d gravity first changes to 5d and only later to 6d the crossover from 4d to 5d is independent of the tension but the crossover from 5d to 6d is not this shows how the vacuum energy problem manifests in big instead of tuning vacuum energy to adjust the 4d curvature generically one must tune it to get the desired crossover scales and the hierarchy between the scales governing the 4d to 5d to 6d transitions in the nearcritical limit linearized perturbation theory remains under control below the crossover scale and we find that linearized gravity around the vacuum looks like a scalartensor theory | [['we', 'review', 'the', 'results', 'of', 'arxivhepth0703190', 'on', 'brane', 'induced', 'gravity', 'big', 'in', '6d', 'among', 'a', 'large', 'diversity', 'of', 'regulated', 'codimension2', 'branes', 'we', 'find', 'that', 'for', 'nearcritical', 'tensions', 'branes', 'live', 'inside', 'very', 'deep', 'throats', 'which', 'efficiently', 'compactify', 'the', 'angular', 'dimension', 'in', 'there', '4d', 'gravity', 'first', 'changes', 'to', '5d', 'and', 'only', 'later', 'to', '6d', 'the', 'crossover', 'from', '4d', 'to', '5d', 'is', 'independent', 'of', 'the', 'tension', 'but', 'the', 'crossover', 'from', '5d', 'to', '6d', 'is', 'not', 'this', 'shows', 'how', 'the', 'vacuum', 'energy', 'problem', 'manifests', 'in', 'big', 'instead', 'of', 'tuning', 'vacuum', 'energy', 'to', 'adjust', 'the', '4d', 'curvature', 'generically', 'one', 'must', 'tune', 'it', 'to', 'get', 'the', 'desired', 'crossover', 'scales', 'and', 'the', 'hierarchy', 'between', 'the', 'scales', 'governing', 'the', '4d', 'to', '5d', 'to', '6d', 'transitions', 'in', 'the', 'nearcritical', 'limit', 'linearized', 'perturbation', 'theory', 'remains', 'under', 'control', 'below', 'the', 'crossover', 'scale', 'and', 'we', 'find', 'that', 'linearized', 'gravity', 'around', 'the', 'vacuum', 'looks', 'like', 'a', 'scalartensor', 'theory']] | [-0.1048543285044919, 0.19883679320789976, -0.06633994555320694, 0.11758221068238425, -0.07193191204755243, -0.16678866632961822, -0.003979215721806718, 0.27862722565381165, -0.2572878612878008, -0.3128799177324658, 0.03067081294607811, -0.28614702325042646, -0.15372366826826087, 0.07745851311160044, -0.06623405157653098, -0.013863945884319643, -0.04240494471418464, 0.0275041380405633, -0.13383784432597975, -0.20050978566157734, 0.37693613839898416, 0.052228223019685376, 0.28984309308644796, 0.056591910375977425, 0.0885691303669268, -0.0776491898113818, 0.08107669387633602, 0.03752387494831863, -0.15246455639670684, 0.09749735797115339, 0.2372507329370516, 0.07979395722410725, 0.16041580023657945, -0.448588532072285, -0.22843321776922998, 0.0688661963859987, 0.1966728051063708, 0.19444293920322606, -0.00821127893626302, -0.267088610976417, 0.04967709353271251, -0.09675827397748232, -0.1495209479277643, -0.07212429740886567, 0.00789714183904127, -0.14831145748030394, -0.23202537954138178, 0.07969480007886887, -0.033532155386637896, -0.015874400741368946, -0.07967180025783212, -0.03893993567908183, -0.08643581764772534, 0.11914385614202022, 0.1748583870099133, 0.06477084168646899, 0.1529475750737927, -0.17367869586936044, -0.03690759186995112, 0.3907996680839763, -0.11700538114382653, -0.1881961465244078, 0.179827423543126, -0.19453534608409326, -0.14256758945864728, 0.12733867864396112, 0.1226594569339391, 0.17460473400003845, -0.07748929403411846, 0.19483787610038739, 0.04392810178008707, 0.19522369316028845, 0.13377357471876572, 0.020907049273470573, 0.29055078225792386, 0.1553270717607423, 0.051989740800409995, 0.09883337290537181, -0.06323816665907442, -0.15322814512506333, -0.35215574534635785, -0.12226500293602133, -0.1543077690568882, 0.10244298836439863, -0.15278120356672137, -0.20790277457045805, 0.3410010678409081, 0.14916700670922486, 0.1953114365395676, 0.03494906344712945, 0.20279649038436925, 0.04040377309017155, 0.07676018565285227, 0.052051568225174885, 0.3125847985995481, 0.06587637198390439, 0.12263399186485913, -0.27288939165818094, -0.11887730201770966, 0.1181136193853389] |
711.3211 | Hypercharged Anomaly Mediation | We show that, in string models with the MSSM residing on D-branes, the bino
mass can be generated in a geometrically separated hidden sector. Hypercharge
mediation thus naturally teams up with anomaly mediation. The mixed scenario
predicts a distinctive yet viable superpartner spectrum, provided that the
ratio \alpha between the bino and gravitino mass lies in the range 0.05 <
|\alpha| < 0.25, and m_{3/2} > 35 TeV. We summarize some of the
phenomenological features of this scenario.
| hep-ph hep-th | we show that in string models with the mssm residing on dbranes the bino mass can be generated in a geometrically separated hidden sector hypercharge mediation thus naturally teams up with anomaly mediation the mixed scenario predicts a distinctive yet viable superpartner spectrum provided that the ratio alpha between the bino and gravitino mass lies in the range 005 alpha 025 and m_32 35 tev we summarize some of the phenomenological features of this scenario | [['we', 'show', 'that', 'in', 'string', 'models', 'with', 'the', 'mssm', 'residing', 'on', 'dbranes', 'the', 'bino', 'mass', 'can', 'be', 'generated', 'in', 'a', 'geometrically', 'separated', 'hidden', 'sector', 'hypercharge', 'mediation', 'thus', 'naturally', 'teams', 'up', 'with', 'anomaly', 'mediation', 'the', 'mixed', 'scenario', 'predicts', 'a', 'distinctive', 'yet', 'viable', 'superpartner', 'spectrum', 'provided', 'that', 'the', 'ratio', 'alpha', 'between', 'the', 'bino', 'and', 'gravitino', 'mass', 'lies', 'in', 'the', 'range', '005', 'alpha', '025', 'and', 'm_32', '35', 'tev', 'we', 'summarize', 'some', 'of', 'the', 'phenomenological', 'features', 'of', 'this', 'scenario']] | [-0.14973901289204755, 0.26726196639239785, -0.014271935583868375, 0.17432767572347074, -0.086495699112614, -0.1959018121038874, 0.04463404259334008, 0.3400011015341928, -0.22686005343993504, -0.38028934121131897, 0.03521363215676199, -0.2532087477731208, -0.023274230019499857, 0.11498942623535792, -0.03197492393354575, -0.029980744396646816, 0.011966903026526173, -0.005663614918788274, -0.02842050082360705, -0.21794119255772482, 0.2933534685305009, 0.006277404551704725, 0.17540493359789253, 0.0851411330451568, 0.05154908864448468, -0.09741790904973945, 0.032204248402267696, -0.08874663278460503, -0.1157126146130031, 0.0799793619227906, 0.22110365039576815, 0.06786767539257804, 0.10535869106650353, -0.2862994612256686, -0.22903250938824687, 0.19468293972313405, 0.19805163277933996, 0.018775211833417415, -0.08602220065426082, -0.30260259060033906, 0.1137187268336614, -0.23376848612912, -0.088290108256042, -0.0041902805802722775, -0.07420927075048288, -0.20062621490408977, -0.2963503910539051, 0.15415419232100247, -0.06358978530547271, -0.015744999784898635, -0.05071764403488487, -0.16526071955605098, -0.10169358095775048, -0.014983784755071004, 0.21243542534609636, -0.010865168155481417, 0.17773489583283664, -0.21063902958917122, -0.1092622987429301, 0.4230442535877228, -0.13088901405533154, -0.13655702230515696, 0.16463138175817826, -0.11675520953722299, -0.2107913545270761, 0.11068924572318792, 0.1411564030125737, 0.10761779185384512, -0.1062980627392729, 0.19920094861183316, -0.06747342775265376, 0.25171687491238115, 0.05204345456634959, 0.03217799654851357, 0.3626235282421112, 0.22037744389226038, 0.044724962947269284, 0.03177337102436771, -0.0788056549957643, -0.08401261780100565, -0.4196873235205809, -0.07123784244564983, -0.06947362443897873, 0.039682512407501536, -0.14832269873431264, -0.07232035651803016, 0.38896711786588034, 0.15616759980097414, 0.2855146638800701, 0.06294566464717112, 0.256227305829525, 0.03966885050758719, 0.0841071199811995, 0.046033126761515934, 0.310888107700351, 0.09573736522346735, 0.09603453138843179, -0.18832796051477393, -0.07100591411193212, 0.025975483395159246] |
711.3212 | Limits on Hot Galactic Halo Gas from X-ray Absorption Lines | Although the existence of large-scale hot gaseous halos around massive disk
galaxies have been theorized for a long time, there is yet very little
observational evidence. We report the Chandra and XMM-Newton grating spectral
detection of OVII and NeIX Kalpha absorption lines along the sight-line of 4U
1957+11. The line absorption is consistent with the interstellar medium in
origin. Attributing these line absorptions to the hot gas associated with the
Galactic disk, we search for the gaseous halo around the Milky Way by comparing
this sight-line with more distant ones (toward X-ray binary LMC X-3 and the AGN
Mrk 421). We find that all the line absorptions along the LMC X-3 and Mrk 421
sight-lines are attributable to the hot gas in a thick Galactic disk, as traced
by the absorption lines in the spectra of 4U~1957+11 after a Galactic latitude
dependent correction. We constrain the OVII column density through the halo to
be N(OVII) < 5E15 cm^{-2} (95% confidence limit), and conclude that the hot gas
contribution to the metal line absorptions, if existing, is negligible.
| astro-ph | although the existence of largescale hot gaseous halos around massive disk galaxies have been theorized for a long time there is yet very little observational evidence we report the chandra and xmmnewton grating spectral detection of ovii and neix kalpha absorption lines along the sightline of 4u 195711 the line absorption is consistent with the interstellar medium in origin attributing these line absorptions to the hot gas associated with the galactic disk we search for the gaseous halo around the milky way by comparing this sightline with more distant ones toward xray binary lmc x3 and the agn mrk 421 we find that all the line absorptions along the lmc x3 and mrk 421 sightlines are attributable to the hot gas in a thick galactic disk as traced by the absorption lines in the spectra of 4u195711 after a galactic latitude dependent correction we constrain the ovii column density through the halo to be novii 5e15 cm2 95 confidence limit and conclude that the hot gas contribution to the metal line absorptions if existing is negligible | [['although', 'the', 'existence', 'of', 'largescale', 'hot', 'gaseous', 'halos', 'around', 'massive', 'disk', 'galaxies', 'have', 'been', 'theorized', 'for', 'a', 'long', 'time', 'there', 'is', 'yet', 'very', 'little', 'observational', 'evidence', 'we', 'report', 'the', 'chandra', 'and', 'xmmnewton', 'grating', 'spectral', 'detection', 'of', 'ovii', 'and', 'neix', 'kalpha', 'absorption', 'lines', 'along', 'the', 'sightline', 'of', '4u', '195711', 'the', 'line', 'absorption', 'is', 'consistent', 'with', 'the', 'interstellar', 'medium', 'in', 'origin', 'attributing', 'these', 'line', 'absorptions', 'to', 'the', 'hot', 'gas', 'associated', 'with', 'the', 'galactic', 'disk', 'we', 'search', 'for', 'the', 'gaseous', 'halo', 'around', 'the', 'milky', 'way', 'by', 'comparing', 'this', 'sightline', 'with', 'more', 'distant', 'ones', 'toward', 'xray', 'binary', 'lmc', 'x3', 'and', 'the', 'agn', 'mrk', '421', 'we', 'find', 'that', 'all', 'the', 'line', 'absorptions', 'along', 'the', 'lmc', 'x3', 'and', 'mrk', '421', 'sightlines', 'are', 'attributable', 'to', 'the', 'hot', 'gas', 'in', 'a', 'thick', 'galactic', 'disk', 'as', 'traced', 'by', 'the', 'absorption', 'lines', 'in', 'the', 'spectra', 'of', '4u195711', 'after', 'a', 'galactic', 'latitude', 'dependent', 'correction', 'we', 'constrain', 'the', 'ovii', 'column', 'density', 'through', 'the', 'halo', 'to', 'be', 'novii', '5e15', 'cm2', '95', 'confidence', 'limit', 'and', 'conclude', 'that', 'the', 'hot', 'gas', 'contribution', 'to', 'the', 'metal', 'line', 'absorptions', 'if', 'existing', 'is', 'negligible']] | [-0.0597428882204192, 0.05756544704093936, -0.022353784792358056, 0.07768524444095833, -0.10566354819986207, -0.09475160371882586, 0.059848149911638095, 0.5134932093926843, -0.11465771310825155, -0.31564189653330355, 0.02542757669752146, -0.3543778506318631, 0.05833110347686505, 0.16663691922043322, 0.026431862950134513, -0.061691260354233564, -0.00029442287103103644, -0.1684436651835726, 0.009133304897907445, -0.2332262784634209, 0.2669146155504594, 0.09789202174579259, 0.09991795082599063, 0.019867411005014383, 0.05143710375143035, -0.12424691816770726, -0.0653787886575711, -0.04046543915650214, -0.10102368846831021, 0.0398312143092467, 0.25964770355494693, 0.0910536390292691, 0.17370423231940632, -0.3268681903798345, -0.23909383350507019, 0.06173752125786533, 0.2410462717657951, -0.000439900746145709, -0.056724917166486026, -0.30126877320964757, 0.017789535570211065, -0.18286483202510598, -0.21678211997178468, 0.11305898934899067, 0.060617618273351, 0.010173470980424265, -0.13166584632827752, 0.1404731411808329, 0.011091830140106718, 0.0943760850826617, -0.13625338090456685, -0.06881216618057806, -0.07717713643796742, -0.00790379144580749, 0.07280006633399436, 0.07107074089369482, 0.24375014881264756, -0.0911023080327802, -0.014746857132360508, 0.43262133965353394, -0.12801085654857822, 0.08463679685023222, 0.20553540338402276, -0.24121809693116864, -0.24703374416408638, 0.25153538422786037, 0.10219405687530525, 0.10397036759902469, -0.12747949148938045, 0.025803026049702152, -0.1088157284122479, 0.24897948077308352, 0.04381319650432984, 0.06970861911659912, 0.37933661144184455, 0.026487341001815035, 0.03794300929902503, 0.08642254270009951, -0.30319617889240774, -0.023680802140998738, -0.19316330429071307, -0.09812183433678001, -0.0944745258688768, 0.09780306744505651, -0.1355041621000055, -0.12916767198674445, 0.31729117339339363, 0.10128547221591527, 0.2859199365497757, -0.006089518770088695, 0.37143713502419734, 0.10730790158115931, 0.05028091646487486, 0.17465351200582352, 0.334458512889052, 0.20407016343828713, 0.10093877006808973, -0.2490638156328218, 0.12393684374216139, -0.022970407623109746] |
711.3213 | Satisfying the fluctuation theorem in free energy calculations with
Hamiltonian replica exchange | A novel error measure, referred to as the hysteresis error, is developed from
the Crooks fluctuation theorem to evaluate sampling quality in free energy
calculations. Theory and numerical free energy of hydration calculations are
used to show that Hamiltonian replica exchange provides a direct route for
minimizing the hysteresis error. Replica exchange swap probabilies yield the
rate at which the hysteresis error falls with simulation length, and this
result can be used to decrease bias and statistical errors associated with free
energy calculations based on multicanonical simulations.
| cond-mat.stat-mech cond-mat.soft | a novel error measure referred to as the hysteresis error is developed from the crooks fluctuation theorem to evaluate sampling quality in free energy calculations theory and numerical free energy of hydration calculations are used to show that hamiltonian replica exchange provides a direct route for minimizing the hysteresis error replica exchange swap probabilies yield the rate at which the hysteresis error falls with simulation length and this result can be used to decrease bias and statistical errors associated with free energy calculations based on multicanonical simulations | [['a', 'novel', 'error', 'measure', 'referred', 'to', 'as', 'the', 'hysteresis', 'error', 'is', 'developed', 'from', 'the', 'crooks', 'fluctuation', 'theorem', 'to', 'evaluate', 'sampling', 'quality', 'in', 'free', 'energy', 'calculations', 'theory', 'and', 'numerical', 'free', 'energy', 'of', 'hydration', 'calculations', 'are', 'used', 'to', 'show', 'that', 'hamiltonian', 'replica', 'exchange', 'provides', 'a', 'direct', 'route', 'for', 'minimizing', 'the', 'hysteresis', 'error', 'replica', 'exchange', 'swap', 'probabilies', 'yield', 'the', 'rate', 'at', 'which', 'the', 'hysteresis', 'error', 'falls', 'with', 'simulation', 'length', 'and', 'this', 'result', 'can', 'be', 'used', 'to', 'decrease', 'bias', 'and', 'statistical', 'errors', 'associated', 'with', 'free', 'energy', 'calculations', 'based', 'on', 'multicanonical', 'simulations']] | [-0.10321630758969763, 0.11743563852207951, -0.10842478942927407, 0.14122810917581582, -0.017521046416097603, -0.13270104777197853, 0.12404788827366564, 0.37735625869746126, -0.28737267950376455, -0.34311994108869587, 0.05571765885119825, -0.27609274120524874, -0.0890415215453263, 0.2339180765029173, -0.05660044687778451, 0.0838380750961775, 0.08768327662526348, 0.018725368194282055, -0.0882809076209141, -0.18842494764993356, 0.2012097693947252, 0.1549466819567389, 0.31792226730477674, 0.09858223320483121, 0.07290640632556968, 0.05176705269543671, 0.024411898937487846, 0.0366816372004186, -0.21746522635209636, 0.09786626535771024, 0.23330844494752412, -0.000707830123733296, 0.26846011118356916, -0.4040439193635139, -0.2258765200737777, 0.07041913378702173, 0.08772742910159015, 0.14939436910411363, -0.05240440100761737, -0.22900589613980332, 0.07450306893131414, -0.19437733413868172, -0.07991492488356523, -0.11220029493533941, -0.10716168610595686, 0.04786684588247607, -0.2952816190501285, 0.16889161943068165, -0.03654241643380374, 0.0653476750558184, -0.0382001185843851, -0.11801863257599951, -0.03836625667700414, 0.1319123633208598, 0.08882575554415843, 0.06046935815775637, 0.20050579171118782, 0.009463508911975687, -0.14995837404100268, 0.3357224208844263, -0.055293435891440444, -0.1933651057066569, 0.12302168133008012, -0.060544636111359955, -0.09054873058529095, 0.18627673591118912, 0.1231364574889804, 0.024162303613022316, -0.14599766771763908, 0.05486125978546455, 0.09189742976842924, 0.2066372481369695, 0.024302872141476636, 0.00323338340426427, 0.13044482974205598, 0.14271983721423462, 0.05460136355615632, 0.1411735249065989, -0.12127412967234959, -0.16709789345690676, -0.3305973919151827, -0.15216588393546815, -0.22516107117367345, 0.05314584945458486, -0.08401526352928729, -0.19705343761936175, 0.3353856838806424, 0.1752784356155411, 0.10817501166575523, 0.12065745156047172, 0.31619223919128564, 0.15399118453172186, 0.06504202545972454, 0.07196158197502671, 0.22574256232744733, 0.16438193723348207, 0.0517643875236688, -0.2772960600979236, 0.0632249222673086, 0.08833155045177528] |
711.3214 | A Higher Form (of) Mediation | We exhibit a simple and robust mechanism for mediation of supersymmetry
breaking between geometrically separated D-branes in type II string theory. The
mediation proceeds via RR p-forms that couple via linear Chern-Simons terms to
the abelian vector bosons on the branes. From a 4-d low energy perspective, the
mechanism reduces to U(1) mediation.
| hep-th hep-ph | we exhibit a simple and robust mechanism for mediation of supersymmetry breaking between geometrically separated dbranes in type ii string theory the mediation proceeds via rr pforms that couple via linear chernsimons terms to the abelian vector bosons on the branes from a 4d low energy perspective the mechanism reduces to u1 mediation | [['we', 'exhibit', 'a', 'simple', 'and', 'robust', 'mechanism', 'for', 'mediation', 'of', 'supersymmetry', 'breaking', 'between', 'geometrically', 'separated', 'dbranes', 'in', 'type', 'ii', 'string', 'theory', 'the', 'mediation', 'proceeds', 'via', 'rr', 'pforms', 'that', 'couple', 'via', 'linear', 'chernsimons', 'terms', 'to', 'the', 'abelian', 'vector', 'bosons', 'on', 'the', 'branes', 'from', 'a', '4d', 'low', 'energy', 'perspective', 'the', 'mechanism', 'reduces', 'to', 'u1', 'mediation']] | [-0.14863243819003538, 0.26310137390457794, -0.028736198382487275, 0.16026528668150586, -0.1676388775692585, -0.2420850436396475, 0.06206378773654336, 0.2900428169468453, -0.24546881663208864, -0.24578893469330274, 0.029233230069226953, -0.2192611751093898, -0.1740849417159861, 0.0743892172984076, -0.052666357349393504, -0.0703533600558931, -0.07358157158091243, -0.0035059059495633504, -0.06178636459703996, -0.24395137382144072, 0.33134400388577356, -0.01688024232972343, 0.3181695935474533, 0.029774842845311143, 0.12994599177168226, 0.008882946686221744, 0.02194001236579047, -0.04853434263254112, -0.06390764294172975, 0.13275691023852043, 0.21570071073705857, 0.03731100084611549, 0.06733758090380228, -0.461155383302918, -0.22831293850926296, 0.10516902015386324, 0.1749917958107478, 0.14164963738887376, -0.07951920858434981, -0.29079115872253786, 0.11135103165189612, -0.17578411095266072, -0.06766121189619573, -0.07929393681829339, -0.05118270800009651, -0.1963901292040663, -0.3093375164734305, 0.13420773582216702, -0.011330485803004846, 0.07716328757902924, -0.06877999805476305, -0.017963715864099422, -0.14323024894550163, -0.013822694642926162, 0.21236672786609181, 0.03515449890269423, 0.14367479098222727, -0.21770976200471368, -0.1839341565105572, 0.3769748513147516, -0.12470799830373165, -0.25573126158132303, 0.21541248755705245, -0.0010480057230693692, -0.15344009472426237, 0.12093361695560645, 0.14802962948374873, 0.19796412663956015, -0.08837630483761148, 0.2523043072241016, 0.0027666883015970015, 0.12737422707086465, 0.04487403698335841, 0.06332492427724712, 0.30428758133554235, 0.12226811780611861, 0.05405598367511664, 0.12730392673105564, -0.008628612204085825, -0.15780601590731233, -0.45900837528818056, -0.09999150817967811, -0.059318443575768535, 0.11501246936759858, -0.12632480650269295, -0.13651648321944587, 0.36652745153614374, 0.0321002952679816, 0.21541463596008295, 0.061351672796074536, 0.19646526350341034, 0.06778450603684727, 0.10950764816886974, -0.016326928836346236, 0.24346960066127996, 0.15816051734365383, 0.06476234612142984, -0.2596210103069063, -0.15498187645110037, 0.22782751114792982] |
711.3215 | How is Exotics Produced ? Where to Search for it ? | On the basis of existing data, we suggest such a mechanism of production for
exotic hadrons that can explain, at least qualitatively, why the Theta+-baryon
is seen in some experiments and not in others. With our hypothesis, production
of exotic hadrons is a new kind of hard processes. We also can propose new
experiments to check (and confirm?) existence of exotics and to provide new
important information about both exotic and conventional hadrons [The talk is
based on the papers by Ya. Azimov, K. Goeke, and I. Strakovsky, Phys Rev D 76,
074013 (2007)]
| hep-ph | on the basis of existing data we suggest such a mechanism of production for exotic hadrons that can explain at least qualitatively why the thetabaryon is seen in some experiments and not in others with our hypothesis production of exotic hadrons is a new kind of hard processes we also can propose new experiments to check and confirm existence of exotics and to provide new important information about both exotic and conventional hadrons the talk is based on the papers by ya azimov k goeke and i strakovsky phys rev d 76 074013 2007 | [['on', 'the', 'basis', 'of', 'existing', 'data', 'we', 'suggest', 'such', 'a', 'mechanism', 'of', 'production', 'for', 'exotic', 'hadrons', 'that', 'can', 'explain', 'at', 'least', 'qualitatively', 'why', 'the', 'thetabaryon', 'is', 'seen', 'in', 'some', 'experiments', 'and', 'not', 'in', 'others', 'with', 'our', 'hypothesis', 'production', 'of', 'exotic', 'hadrons', 'is', 'a', 'new', 'kind', 'of', 'hard', 'processes', 'we', 'also', 'can', 'propose', 'new', 'experiments', 'to', 'check', 'and', 'confirm', 'existence', 'of', 'exotics', 'and', 'to', 'provide', 'new', 'important', 'information', 'about', 'both', 'exotic', 'and', 'conventional', 'hadrons', 'the', 'talk', 'is', 'based', 'on', 'the', 'papers', 'by', 'ya', 'azimov', 'k', 'goeke', 'and', 'i', 'strakovsky', 'phys', 'rev', 'd', '76', '074013', '2007']] | [-0.06577474693767726, 0.1426447367347363, -0.13592646195967165, 0.08858683609998681, -0.1105306344313754, -0.14485794306836194, 0.06239836012116737, 0.3370695297088888, -0.1675745856534276, -0.3088259890675545, 0.042074212287035256, -0.3062628771488865, -0.12511359591864876, 0.17826062914811902, -0.06059387364010844, 0.02739954310365849, 0.06866657589044836, 0.019172729621964715, -0.023494543608588478, -0.2654965920994679, 0.31290463763806553, 0.06828304005579816, 0.2345095059213539, 0.1669298711957203, 0.050617472901164244, -0.012385114375501872, -0.053145006756919126, -0.012900944504265984, -0.13632767196322676, 0.10163284591787185, 0.2108935617117418, 0.15493348001812896, 0.17442327863019375, -0.4191120464147793, -0.19376325191309055, 0.1015256805655857, 0.1283129459246993, 0.10310965476868053, -0.0655160086410534, -0.28982675064665575, 0.12177563590941848, -0.1637350137035052, -0.12786264868401404, -0.16320421596368154, 0.0452575891226944, 0.01639380103184117, -0.28237333209253845, 0.08559350850183466, 0.061445475380039874, 0.03943071618365745, -0.00972789487698012, -0.18058302598074077, 0.01897098303306848, 0.004793215563727749, 0.07076951273613506, 0.04627358477122875, 0.07532193415487806, -0.10058124656271604, -0.2246580269937921, 0.3723919895788034, -0.056173914570050935, -0.11854979560400049, 0.2642642181392552, -0.15607106796879736, -0.17854785193792647, 0.09728588605713513, 0.18867032955297167, 0.11239157417553038, -0.1515471906039036, 0.04576687400630261, -0.0837773146133663, 0.14445056283536056, 0.033490894491680794, 0.06590865606752534, 0.2033558047699949, 0.1647659137017197, -0.04695558663871553, 0.06630004461233814, -0.07666123157056669, -0.055428893983157146, -0.36784406112662205, -0.20915842544701363, -0.13122740345489647, 0.05946199235574265, 0.026110137492812806, -0.06662231143563986, 0.373694731372719, 0.14942687667078441, 0.2651424470409337, -0.05306752802506606, 0.23564612716953787, 0.02113673306044398, 0.01882315141459306, 0.10819693074768616, 0.2715447897676818, 0.08965227425150159, 0.10583119200956491, -0.1695060735102743, 0.0628747353123294, 0.037307978183445] |
711.3216 | Quantized charge pumping in superconducting double barrier structure :
Non-trivial correlations due to proximity effect | We consider quantum charge pumping of electrons across a superconducting
double barrier structure in the adiabatic limit. The superconducting barriers
are assumed to be reflection-less so that an incident electron on the barrier
can either tunnel through it or Andreev reflect from it. In this structure,
quantum charge pumping can be achieved (a) by modulating the amplitudes,
$\Delta_1$ and $\Delta_2$ of the two superconducting gaps or alternatively, (b)
by a periodic modulation of the order parameter phases, $\phi_1$ and $\phi_2$
of the superconducting barriers. In the former case, we show that the
superconducting gap gives rise to a very sharp resonance in the transmission
resulting in quantization of pumped charge, when the pumping contour encloses
the resonance. On the other hand, we find that quantization is hard to achieve
in the latter case. We show that inclusion of weak electron-electron
interaction in the quantum wire leads to renormalisation group evolution of the
transmission amplitude towards the perfectly transmitting limit due to
proximity effects. Hence as we approach the zero temperature limit, we get
destruction of quantized pumped charge. This is in sharp contrast to the case
of charge pumping in a double barrier in a Luttinger liquid where quantized
charge pumping is actually achieved in the zero temperature limit. We also
propose an experimental set-up to study these effects.
| cond-mat.mes-hall cond-mat.str-el | we consider quantum charge pumping of electrons across a superconducting double barrier structure in the adiabatic limit the superconducting barriers are assumed to be reflectionless so that an incident electron on the barrier can either tunnel through it or andreev reflect from it in this structure quantum charge pumping can be achieved a by modulating the amplitudes delta_1 and delta_2 of the two superconducting gaps or alternatively b by a periodic modulation of the order parameter phases phi_1 and phi_2 of the superconducting barriers in the former case we show that the superconducting gap gives rise to a very sharp resonance in the transmission resulting in quantization of pumped charge when the pumping contour encloses the resonance on the other hand we find that quantization is hard to achieve in the latter case we show that inclusion of weak electronelectron interaction in the quantum wire leads to renormalisation group evolution of the transmission amplitude towards the perfectly transmitting limit due to proximity effects hence as we approach the zero temperature limit we get destruction of quantized pumped charge this is in sharp contrast to the case of charge pumping in a double barrier in a luttinger liquid where quantized charge pumping is actually achieved in the zero temperature limit we also propose an experimental setup to study these effects | [['we', 'consider', 'quantum', 'charge', 'pumping', 'of', 'electrons', 'across', 'a', 'superconducting', 'double', 'barrier', 'structure', 'in', 'the', 'adiabatic', 'limit', 'the', 'superconducting', 'barriers', 'are', 'assumed', 'to', 'be', 'reflectionless', 'so', 'that', 'an', 'incident', 'electron', 'on', 'the', 'barrier', 'can', 'either', 'tunnel', 'through', 'it', 'or', 'andreev', 'reflect', 'from', 'it', 'in', 'this', 'structure', 'quantum', 'charge', 'pumping', 'can', 'be', 'achieved', 'a', 'by', 'modulating', 'the', 'amplitudes', 'delta_1', 'and', 'delta_2', 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711.3217 | The ATLAS High Level Trigger Region of Interest Builder | This article describes the design, testing and production of the ATLAS Region
of Interest Builder (RoIB). This device acts as an interface between the Level
1 trigger and the high level trigger (HLT) farm for the ATLAS LHC detector. It
distributes all of the level 1 data for a subset of events to a small number of
(16 or less) individual commodity processors. These processors in turn provide
this information to the HLT. This allows the HLT to use the level 1 information
to narrow data requests to areas of the detector where level 1 has identified
interesting objects.
| physics.ins-det | this article describes the design testing and production of the atlas region of interest builder roib this device acts as an interface between the level 1 trigger and the high level trigger hlt farm for the atlas lhc detector it distributes all of the level 1 data for a subset of events to a small number of 16 or less individual commodity processors these processors in turn provide this information to the hlt this allows the hlt to use the level 1 information to narrow data requests to areas of the detector where level 1 has identified interesting objects | [['this', 'article', 'describes', 'the', 'design', 'testing', 'and', 'production', 'of', 'the', 'atlas', 'region', 'of', 'interest', 'builder', 'roib', 'this', 'device', 'acts', 'as', 'an', 'interface', 'between', 'the', 'level', '1', 'trigger', 'and', 'the', 'high', 'level', 'trigger', 'hlt', 'farm', 'for', 'the', 'atlas', 'lhc', 'detector', 'it', 'distributes', 'all', 'of', 'the', 'level', '1', 'data', 'for', 'a', 'subset', 'of', 'events', 'to', 'a', 'small', 'number', 'of', '16', 'or', 'less', 'individual', 'commodity', 'processors', 'these', 'processors', 'in', 'turn', 'provide', 'this', 'information', 'to', 'the', 'hlt', 'this', 'allows', 'the', 'hlt', 'to', 'use', 'the', 'level', '1', 'information', 'to', 'narrow', 'data', 'requests', 'to', 'areas', 'of', 'the', 'detector', 'where', 'level', '1', 'has', 'identified', 'interesting', 'objects']] | [-0.12410497612899588, 0.09219682551768955, -0.06471460626451109, 0.059815052806456784, -0.04589064862122949, -0.1624408555502186, 0.06902614492942027, 0.3132706248030371, -0.26348862291446756, -0.4022674388157166, 0.10768293528888868, -0.32166294279827246, -0.022044710104581804, 0.16296697507032706, -0.07285182883431993, 0.04392405343717154, 0.10632374828529297, 0.059739197531004665, 0.007903542445630444, -0.2461554167806456, 0.23766583535934285, 0.14421315828566345, 0.2575022104500356, 0.059829780803423147, 0.1492478334539741, 0.01544820117212984, -0.021824050017000576, -0.03723059536661116, -0.08816528014306511, 0.13233927053836536, 0.3333369933771996, 0.18672432410245648, 0.28333998530418897, -0.41924088146081384, -0.07442825249329742, 0.0880508641759884, 0.11008232465365483, 0.037881298864982565, -0.053140826936697166, -0.2751657259080331, 0.13477638135521616, -0.21430472432806782, -0.08659631886747571, 0.005933215147910678, -0.0033654318457203253, -0.007453930839820176, -0.24802615367142217, -0.02970378118928294, 0.006136428025475114, 0.05152746388565141, 0.013553335922366311, -0.0877230733785094, -0.032001514082812536, 0.18447088797776295, 0.005377826451951144, 0.062294184339852836, 0.20033664703939338, -0.1741058763017816, -0.11782934944316441, 0.3073092911164371, 0.030299538912783777, -0.16677270146390918, 0.21917143771519923, -0.1827304432624761, -0.15892636793076384, 0.14201845483360243, 0.23195314481474308, 0.022600786033447604, -0.18911263603736095, 0.049224037428776145, 0.03279786946118942, 0.23061947796104135, 0.04472475049646609, 0.051491806692234715, 0.18646174323345935, 0.2630312893140529, 0.08316094506227849, 0.11629200682082043, -0.17172743566334248, -0.040298262938895095, -0.37959939543613974, -0.169893381784537, -0.13606135806719755, -0.014328712179344527, -0.041832566203974776, -0.13232522646715977, 0.42170285027740256, 0.17634523406206648, 0.23201686093507676, 0.012213651280926198, 0.3138803730585745, 0.07154810684139137, 0.12032314741565865, 0.08504168166569909, 0.199208093488741, 0.0192700982549969, 0.14292367553452448, -0.13128127665995448, 0.025402629173037653, -0.005321339841894045] |
711.3218 | An Integral Measure of Aging/Rejuvenation for Repairable and
Non-repairable Systems | This paper introduces a simple index that helps to assess the degree of aging
or rejuvenation of a (non)repairable system. The index ranges from -1 to 1 and
is negative for the class of decreasing failure rate distributions (or
deteriorating point processes) and is positive for the increasing failure rate
distributions (or improving point processes). The introduced index is
distribution free.
| stat.ME | this paper introduces a simple index that helps to assess the degree of aging or rejuvenation of a nonrepairable system the index ranges from 1 to 1 and is negative for the class of decreasing failure rate distributions or deteriorating point processes and is positive for the increasing failure rate distributions or improving point processes the introduced index is distribution free | [['this', 'paper', 'introduces', 'a', 'simple', 'index', 'that', 'helps', 'to', 'assess', 'the', 'degree', 'of', 'aging', 'or', 'rejuvenation', 'of', 'a', 'nonrepairable', 'system', 'the', 'index', 'ranges', 'from', '1', 'to', '1', 'and', 'is', 'negative', 'for', 'the', 'class', 'of', 'decreasing', 'failure', 'rate', 'distributions', 'or', 'deteriorating', 'point', 'processes', 'and', 'is', 'positive', 'for', 'the', 'increasing', 'failure', 'rate', 'distributions', 'or', 'improving', 'point', 'processes', 'the', 'introduced', 'index', 'is', 'distribution', 'free']] | [-0.11297202012577995, 0.16065591796621925, -0.07383629401046478, 0.0535097904083487, -0.024775934405624866, -0.1424910469347092, 0.08676753521583913, 0.35126079646412467, -0.2900393271788222, -0.2910986790647272, 0.1117778215366492, -0.2971272376350692, -0.12344116552305393, 0.14809479731226677, -0.10080054629838368, 0.04546355538558765, -0.017878416108853015, -0.000812250223835228, -0.038393897396611566, -0.19230202112927056, 0.3614599080298279, 0.1266321629041531, 0.3022119730680448, 0.07434623426668056, 0.09348463610608558, 0.03269568152448256, -0.040710351781034076, -0.0007595077889864562, -0.12553831004286203, 0.09090728714268227, 0.17089167102927066, 0.14468215402887494, 0.3032990174795516, -0.2978451123430592, -0.25867132625741057, 0.16931597757168482, 0.10459230150874765, 0.03796465639941028, -0.059622141425726846, -0.15938784047716953, 0.16872201788193378, -0.19598666688290875, -0.16997505567173976, 0.021869028796304445, 0.07286206383990948, 0.027820879257604725, -0.32816418801571745, 0.10964841018507226, 0.0990183837711811, 0.06874165137405278, -0.036738813724979516, -0.11665483537229297, 0.012196026605050096, 0.18143459966360423, 0.09023853405531435, 0.02905296540216039, 0.14974859604215035, -0.13615287129278678, -0.10916518710065083, 0.3402552385127447, -0.03564882694865714, -0.18397071865982698, 0.22552749749700554, -0.15585845829460954, -0.08105926300383738, 0.15761848615451915, 0.19484690517248188, 0.10075605504947607, -0.09952095189116529, 0.0270511510335367, 0.10421686817044545, 0.18866921827429906, 0.06143004824331061, -0.019210291327908635, 0.1591637209821187, 0.14511827696267454, 0.08019347699572806, 0.15629339886859792, -0.08500333608235003, -0.07004786613320962, -0.2846651694080869, -0.20794232940820398, -0.158566738677318, 0.0665733334684714, -0.10927280611081858, -0.17251559534705566, 0.407375208896081, 0.11039977173366752, 0.22267226850400207, 0.10678384027092672, 0.23239912943471772, 0.19073058659455083, 0.02258274466043613, 0.04129311873684408, 0.14666988117406604, 0.08016927760918854, 0.06370741942683693, -0.15009627743532544, 0.16824400013495908, 0.003966501959767498] |
711.3219 | Annihilators of permutation modules | Permutation modules are fundamental in the representation theory of symmetric
groups $\Sym_n$ and their corresponding Iwahori--Hecke algebras $\He =
\He(\Sym_n)$. We find an explicit combinatorial basis for the annihilator of a
permutation module in the "integral" case -- showing that it is a cell ideal in
G.E. Murphy's cell structure of $\He$. The same result holds whenever $\He$ is
semisimple, but may fail in the non-semisimple case.
| math.RT math.GR | permutation modules are fundamental in the representation theory of symmetric groups sym_n and their corresponding iwahorihecke algebras he hesym_n we find an explicit combinatorial basis for the annihilator of a permutation module in the integral case showing that it is a cell ideal in ge murphys cell structure of he the same result holds whenever he is semisimple but may fail in the nonsemisimple case | [['permutation', 'modules', 'are', 'fundamental', 'in', 'the', 'representation', 'theory', 'of', 'symmetric', 'groups', 'sym_n', 'and', 'their', 'corresponding', 'iwahorihecke', 'algebras', 'he', 'hesym_n', 'we', 'find', 'an', 'explicit', 'combinatorial', 'basis', 'for', 'the', 'annihilator', 'of', 'a', 'permutation', 'module', 'in', 'the', 'integral', 'case', 'showing', 'that', 'it', 'is', 'a', 'cell', 'ideal', 'in', 'ge', 'murphys', 'cell', 'structure', 'of', 'he', 'the', 'same', 'result', 'holds', 'whenever', 'he', 'is', 'semisimple', 'but', 'may', 'fail', 'in', 'the', 'nonsemisimple', 'case']] | [-0.14518943688381114, 0.0709211304931614, -0.07121030551206786, 0.08289523843632196, -0.08706426744902274, -0.1837930359179154, -0.0103355182454834, 0.3884299148194259, -0.33637079561594874, -0.18176306647364981, 0.09047096483845962, -0.21973950896790484, -0.1739215782363317, 0.16373670162283815, -0.1519337170466315, -0.07852692836604547, 0.07297165352792945, 0.16393113468802767, -0.05427129164843336, -0.2967783114982012, 0.3462481254027807, 0.030702082713105483, 0.26316165999742225, 0.0038573074198211543, 0.05569129282957874, 0.02115445881645428, -0.018543916710768826, -0.04087977109156782, -0.09274474489632212, 0.09791485362529784, 0.319799722667085, 0.11815090801974293, 0.19597392992363893, -0.38457413768264814, -0.08643073304847348, 0.18045751871250104, 0.16471676262881374, 0.08021040025050752, -0.04327376211585943, -0.1906507904495811, 0.10429309828032274, -0.23352432815590873, -0.1443965703510912, -0.009711302671348676, 0.11523232789477333, -0.009608877211576328, -0.2792153575401244, 0.016134286794112995, 0.11767735682951752, 0.12892651419679169, -0.08586582222233119, -0.12636860943894135, -0.04249053007515613, 0.12549649854918243, -0.07280326712498209, -0.02818688941624714, 0.09210017677651194, -0.130917203714489, -0.11340250413923059, 0.4052964400034398, 0.014861853750062437, -0.205701550032245, 0.13674597772478592, -0.22990320841199718, -0.19038692079629982, 0.11284852510652854, 0.001953179104020819, 0.10977741327951662, -0.03153126436609455, 0.20429396610325057, -0.1861911964660976, 0.04762754559305904, 0.10661265058297431, -0.005880525255633984, 0.13437226392852608, 0.08072546637413325, 0.038524170508026145, 0.09591941759572364, 0.037084409304952715, 0.0036420535398065113, -0.3525077602826059, -0.2671123964973958, -0.1358049762493465, 0.11045772550278343, -0.10788086192383162, -0.15899659530623467, 0.36916269252833445, 0.05571991693614109, 0.10530176192696672, 0.07998545885493513, 0.1604897654906381, 0.0801805985684041, 0.0804319023845892, 0.04352221749803675, 0.13980672553589102, 0.2671642653294839, -0.0043533959542401135, -0.13315552042331547, 0.005917343678447651, 0.21478053652390372] |
711.322 | Fourvector algebra | The algebra of fourvectors is described. The fourvectors are more appropriate
than the Hamilton quaternions for its use in Physics and the sciences in
general. The fourvectors embrace the 3D vectors in a natural form. It is shown
the excellent ability to perform rotations with the use of fourvectors, as well
as their use in relativity for producing Lorentz boosts, which are understood
as simple rotations.
| math-ph math.MP | the algebra of fourvectors is described the fourvectors are more appropriate than the hamilton quaternions for its use in physics and the sciences in general the fourvectors embrace the 3d vectors in a natural form it is shown the excellent ability to perform rotations with the use of fourvectors as well as their use in relativity for producing lorentz boosts which are understood as simple rotations | [['the', 'algebra', 'of', 'fourvectors', 'is', 'described', 'the', 'fourvectors', 'are', 'more', 'appropriate', 'than', 'the', 'hamilton', 'quaternions', 'for', 'its', 'use', 'in', 'physics', 'and', 'the', 'sciences', 'in', 'general', 'the', 'fourvectors', 'embrace', 'the', '3d', 'vectors', 'in', 'a', 'natural', 'form', 'it', 'is', 'shown', 'the', 'excellent', 'ability', 'to', 'perform', 'rotations', 'with', 'the', 'use', 'of', 'fourvectors', 'as', 'well', 'as', 'their', 'use', 'in', 'relativity', 'for', 'producing', 'lorentz', 'boosts', 'which', 'are', 'understood', 'as', 'simple', 'rotations']] | [-0.07140462550997848, 0.11301450016485019, -0.04581081113693389, 0.13212702185564645, -0.10691813848715162, -0.08936989151565781, -0.07609524738720873, 0.37999246342135873, -0.24418894380726147, -0.309793394538715, 0.10002338007854467, -0.20843931211327965, -0.16479792253989162, 0.2134732253854798, -0.07186973926075028, 0.01915061200005849, 0.019129670475553157, 0.09347881932714672, -0.11802512151894695, -0.18072173515842718, 0.26750685020603915, 0.09911900719232632, 0.2651626664023338, -0.07383209858513014, 0.12072348385823495, 0.026074631344244786, -0.027157356003017136, 0.01397428847849369, -0.017143108712678604, 0.13641481639140032, 0.23631268520980622, 0.16003848956615635, 0.2298388693368796, -0.4479509781707417, -0.18890208494849503, 0.03834907168691808, 0.13066117173399439, 0.09438975605316403, -0.028968008606611736, -0.26578647437307873, -0.0058511514498880415, -0.16113408720720504, -0.1606903996205691, -0.16351603020236574, 0.03366155869496817, -0.01407468541892189, -0.23400123406088713, 0.07299034197278546, 0.0782464711316579, 0.08098281281435805, -0.025538727967421328, -0.09235510269222273, -0.033264018528191656, 0.1551615251298768, 0.054088826001988666, 0.05518318729115312, 0.11427903583865952, -0.12603528338667908, -0.12133365848355672, 0.5351882123698791, -0.01948198193272357, -0.30618604904774466, 0.18190853983502497, -0.1715116176020467, -0.11735940981430537, 0.046470102254357756, 0.14998830943262542, 0.13044852763414383, -0.1328620878612679, 0.10816717662799585, -0.05614979394401113, 0.03971630749186839, 0.08884003246203065, 0.04933668788483677, 0.19361767871305346, 0.12759233829142017, 0.036315898622640154, 0.1029721968313397, -0.007559836457596358, -0.10703932399381742, -0.31646661638197576, -0.20124576072857686, -0.18034409525606668, 0.06878631204634791, -0.05713094334152464, -0.1418394145611356, 0.3872542208815558, 0.12929815302292505, 0.17779720039812452, 0.029787914561121866, 0.26980639220864483, 0.07819458658306042, 0.13654802529719856, 0.0645141145073329, 0.3041147786672368, 0.1811164363682496, 0.10020369481626955, -0.13524526052854277, -0.003101290302407561, 0.045729771365806686] |
711.3221 | Topological dynamics of the Weil-Petersson geodesic flow | We prove topological transitivity for the Weil Petersson geodesic flow for
two-dimensional moduli spaces of hyperbolic structures. Our proof follows a new
approach that exploits the density of singular unit tangent vectors, the
geometry of cusps and convexity properties of negative curvature. We also show
that the Weil Petersson geodesic flow has: horseshoes, invariant sets with
positive topological entropy, and that there are infinitely many hyperbolic
closed geodesics, whose number grows exponentially in length. Furthermore, we
note that the volume entropy is infinite.
| math.DS | we prove topological transitivity for the weil petersson geodesic flow for twodimensional moduli spaces of hyperbolic structures our proof follows a new approach that exploits the density of singular unit tangent vectors the geometry of cusps and convexity properties of negative curvature we also show that the weil petersson geodesic flow has horseshoes invariant sets with positive topological entropy and that there are infinitely many hyperbolic closed geodesics whose number grows exponentially in length furthermore we note that the volume entropy is infinite | [['we', 'prove', 'topological', 'transitivity', 'for', 'the', 'weil', 'petersson', 'geodesic', 'flow', 'for', 'twodimensional', 'moduli', 'spaces', 'of', 'hyperbolic', 'structures', 'our', 'proof', 'follows', 'a', 'new', 'approach', 'that', 'exploits', 'the', 'density', 'of', 'singular', 'unit', 'tangent', 'vectors', 'the', 'geometry', 'of', 'cusps', 'and', 'convexity', 'properties', 'of', 'negative', 'curvature', 'we', 'also', 'show', 'that', 'the', 'weil', 'petersson', 'geodesic', 'flow', 'has', 'horseshoes', 'invariant', 'sets', 'with', 'positive', 'topological', 'entropy', 'and', 'that', 'there', 'are', 'infinitely', 'many', 'hyperbolic', 'closed', 'geodesics', 'whose', 'number', 'grows', 'exponentially', 'in', 'length', 'furthermore', 'we', 'note', 'that', 'the', 'volume', 'entropy', 'is', 'infinite']] | [-0.2549312962780157, 0.18055880249264727, -0.14323157002498588, 0.11783257356132325, -0.10416810088847057, -0.10405473122779976, -0.032429051701910794, 0.31867631654962, -0.33777190196181994, -0.14384911746818976, 0.06726788874036711, -0.3407359414745167, -0.21172590369179126, 0.20317675606403723, -0.1289196841934898, 0.11140650184264025, 0.03411146919860179, 0.1051169655409204, -0.09964825307209808, -0.27758200202945127, 0.43825538307203943, -0.06990045708525612, 0.273981429630868, 0.11510043241173389, 0.13971313862803292, -0.02515441368625735, 0.020064140703663767, 0.08454110150236681, -0.20123275754067216, 0.17937624947930944, 0.2309154315896512, 0.07788896332607122, 0.20083574043497085, -0.37675781357270405, -0.2060623200700046, 0.16642343066632748, 0.15076139230415764, 0.003279604831239186, -0.059644523163673926, -0.23197021717991095, 0.11706211359565516, -0.11134384362116816, -0.20256466237850576, -0.1144873203670449, 0.07606385754847741, 0.025478159579594272, -0.1557344441829496, 0.0596950874542565, 0.1556405863129949, 0.10571546767591443, -0.07960780540829053, -0.0698482085703816, -0.09496880766756115, 0.0387438268524157, 0.1091132105064455, 0.018322433152864408, 0.10905774893149374, -0.010605537871190583, -0.08254059902336223, 0.29677232823065336, -0.08205330608614597, -0.28122909737369384, 0.1327655463176499, -0.1642268329847559, -0.14245873275044632, 0.1506436393955296, 0.14871998309685164, 0.1320080419284213, 0.00976457049598895, 0.1919849590575098, -0.15241873273429607, 0.09721550000312525, 0.14625034626595765, 0.01874924781283431, 0.1392291590279664, 0.04233817845942026, 0.17941297554194993, 0.16487406878605912, -0.03025197912377855, -0.10985808752418261, -0.3676488118537937, -0.2661481846898166, -0.18864580844697285, 0.13425850318408156, -0.19357810642939138, -0.26981985367026673, 0.3463169216930148, 0.024850046054561096, 0.21762576528701438, 0.17353189672646394, 0.25448339306805506, 0.05719244249266045, 0.04575160602444267, 0.16035614416272526, 0.15834978233506702, 0.1821951909532142, 0.009304843949580408, -0.1573979659679245, -0.00850073755887079, 0.2246279756746154] |
711.3222 | Quantum fields, Noether charges and \kappa-spacetime symmetries | We discuss how the symmetries of $\kappa$-Minkowski non-commutative spacetime
can be described by the $\kappa$-Poincar\'e Hopf algebra. In particular, we
focus on a generalization of the Noether analysis in the $\kappa$-deformed
framework which allows us to introduce Noether charges associated with
translational symmetries and makes possible to overcome the apparent
ambiguities that seemed to be associated with the action of such symmetries.
Moving from the classical to the quantum framework, we will first review past
results on path integral quantization of a scalar self-interacting field. We
will then show how recent work on the symplectic structure of classical
$\kappa$-fields suggests a new approach to the canonical quantization of free
fields and and present some new results.
| hep-th | we discuss how the symmetries of kappaminkowski noncommutative spacetime can be described by the kappapoincare hopf algebra in particular we focus on a generalization of the noether analysis in the kappadeformed framework which allows us to introduce noether charges associated with translational symmetries and makes possible to overcome the apparent ambiguities that seemed to be associated with the action of such symmetries moving from the classical to the quantum framework we will first review past results on path integral quantization of a scalar selfinteracting field we will then show how recent work on the symplectic structure of classical kappafields suggests a new approach to the canonical quantization of free fields and and present some new results | [['we', 'discuss', 'how', 'the', 'symmetries', 'of', 'kappaminkowski', 'noncommutative', 'spacetime', 'can', 'be', 'described', 'by', 'the', 'kappapoincare', 'hopf', 'algebra', 'in', 'particular', 'we', 'focus', 'on', 'a', 'generalization', 'of', 'the', 'noether', 'analysis', 'in', 'the', 'kappadeformed', 'framework', 'which', 'allows', 'us', 'to', 'introduce', 'noether', 'charges', 'associated', 'with', 'translational', 'symmetries', 'and', 'makes', 'possible', 'to', 'overcome', 'the', 'apparent', 'ambiguities', 'that', 'seemed', 'to', 'be', 'associated', 'with', 'the', 'action', 'of', 'such', 'symmetries', 'moving', 'from', 'the', 'classical', 'to', 'the', 'quantum', 'framework', 'we', 'will', 'first', 'review', 'past', 'results', 'on', 'path', 'integral', 'quantization', 'of', 'a', 'scalar', 'selfinteracting', 'field', 'we', 'will', 'then', 'show', 'how', 'recent', 'work', 'on', 'the', 'symplectic', 'structure', 'of', 'classical', 'kappafields', 'suggests', 'a', 'new', 'approach', 'to', 'the', 'canonical', 'quantization', 'of', 'free', 'fields', 'and', 'and', 'present', 'some', 'new', 'results']] | [-0.12052960652534081, 0.12758509025342116, -0.12551067983731629, 0.06236982556545864, -0.1830554375991873, -0.10338786184868735, -0.008726233943699575, 0.3507463199774856, -0.29010808762243906, -0.26329813507264077, 0.06560825348183837, -0.2193584801326759, -0.21714506184925203, 0.1657102668414945, -0.14965151217968567, 0.015263892766898093, 0.04114423052448293, 0.0934461577795446, -0.14675704913223972, -0.22653276522279434, 0.39465095315776444, 0.06916571182866946, 0.2578908793182801, 0.030720571501423485, 0.12391467830976066, 0.018386402394136657, -0.060518008855212, 0.03313746905845145, -0.16429259904448965, 0.13326301999066187, 0.19585218436044197, 0.08515323122315432, 0.1976096924090677, -0.4380768310440623, -0.19470154535880757, 0.07159523078564392, 0.1533007868849065, 0.15720700659363976, -0.051345816520852565, -0.32187731711436873, 0.065653924637793, -0.1919232180342078, -0.17082265045939257, -0.14377498979801717, -0.018132690533631198, -0.03809941607810881, -0.18652986289538523, 0.06127414431665903, 0.06740590427577009, 0.01671175513803736, -0.08991786389783754, -0.05632515128944879, -0.008266998519716056, 0.070492042325761, 0.07839352041482925, 0.016776355283091897, 0.10886309787469066, -0.11892764122913713, -0.1992866587065889, 0.3984004029882667, -0.04442864606035468, -0.2563827459072775, 0.14748496101541525, -0.15466637436462485, -0.19564719583596224, 0.04212235370245965, 0.1346448182006893, 0.1270725512472184, -0.14099424110533185, 0.14856891395054686, -0.026896353171247504, 0.0702454413773249, 0.04807966362846934, 0.026393295758727776, 0.21306069340821326, 0.08461276354349177, 0.05180936835139342, 0.14814543732360977, -0.06221132291298684, -0.17170902115707892, -0.39034866940068164, -0.2041262295137605, -0.11256587093989567, 0.12538460600291096, -0.07012801745706541, -0.10930383164111687, 0.41104335282807763, 0.22186994603531354, 0.16742130952441822, 0.026955845884209417, 0.2282710257107797, 0.10850889212249414, 0.09938966529038937, 0.029577191287408704, 0.2089018621251655, 0.18122545821470734, 0.07498995089984459, -0.20664924221498002, -0.10298224221003931, 0.11603472077328225] |
711.3223 | QE Neutrino CC Cross Sections off 16O | The charged-current quasi-elastic scattering of muon neutrino on oxygen
target is computed for neutrino energy between 200 MeV and 2.5 GeV using
different approximations: the Plane Wave Impulse Approximation (PWIA), the
Relativistic Distorted Wave Impulse Approximation with relativistic optical
potential (RDWIA), and the Relativistic Fermi Gas Model (RFGM). The comparison
with RFGM, which is widely used in data analyses of neutrino experiments, shows
that the RFGM fails completely when applied to exclusive cross section data and
leads to overestimated values of inclusive and total cross sections.
| nucl-th | the chargedcurrent quasielastic scattering of muon neutrino on oxygen target is computed for neutrino energy between 200 mev and 25 gev using different approximations the plane wave impulse approximation pwia the relativistic distorted wave impulse approximation with relativistic optical potential rdwia and the relativistic fermi gas model rfgm the comparison with rfgm which is widely used in data analyses of neutrino experiments shows that the rfgm fails completely when applied to exclusive cross section data and leads to overestimated values of inclusive and total cross sections | [['the', 'chargedcurrent', 'quasielastic', 'scattering', 'of', 'muon', 'neutrino', 'on', 'oxygen', 'target', 'is', 'computed', 'for', 'neutrino', 'energy', 'between', '200', 'mev', 'and', '25', 'gev', 'using', 'different', 'approximations', 'the', 'plane', 'wave', 'impulse', 'approximation', 'pwia', 'the', 'relativistic', 'distorted', 'wave', 'impulse', 'approximation', 'with', 'relativistic', 'optical', 'potential', 'rdwia', 'and', 'the', 'relativistic', 'fermi', 'gas', 'model', 'rfgm', 'the', 'comparison', 'with', 'rfgm', 'which', 'is', 'widely', 'used', 'in', 'data', 'analyses', 'of', 'neutrino', 'experiments', 'shows', 'that', 'the', 'rfgm', 'fails', 'completely', 'when', 'applied', 'to', 'exclusive', 'cross', 'section', 'data', 'and', 'leads', 'to', 'overestimated', 'values', 'of', 'inclusive', 'and', 'total', 'cross', 'sections']] | [-0.017279906935453806, 0.15221927792570272, -0.040244685886644344, 0.20103188897591345, -0.009072035696251902, -0.09345242376764153, 0.039771918230419326, 0.3808594231688699, -0.18418863403805813, -0.26957200826037414, -0.06562397582591836, -0.37521951931507086, 0.030924699799872415, 0.2032423078293674, 0.11974845014425904, 0.11098169837959874, 0.09462544654474356, -0.013768249749054396, -0.10526612032540576, -0.20132052995870972, 0.2949510010739052, 0.13152990824283037, 0.26408581119463886, 0.13823117640649163, 0.09297274944283133, 0.10402160388658495, -0.04061063967488143, -0.03437482639280862, -0.0960222985680915, 0.03985732251258437, 0.3015310393381041, 0.012864793623732619, 0.09775737028698935, -0.4259430474146854, -0.15749024553224444, 0.08533834434333691, 0.11055584130592125, 0.09148148231094616, -0.035443207743133656, -0.2790635067016579, 0.019285129438706694, -0.23231782165334322, -0.13635185876384723, -0.0338208332527862, -0.021541133441767373, 0.03340790215013332, -0.2880095211290863, 0.12957451349397753, -0.05651707941298048, -0.0030944862749514193, -0.1099427061177097, -0.19465341338844494, -0.010353393527830755, -0.0029759194257230562, 0.10774615176731374, 0.09081078367849249, 0.16492378547365322, -0.08694190651362459, -0.08597103451097081, 0.43762835184502047, -0.06645793560080143, -0.16408374255826308, 0.10409995127837499, -0.21528209062011608, -0.036212322093698, 0.2587104219466794, 0.21255466923507493, 0.04599944361469297, -0.20421323682493558, 0.07862922924754838, -0.042295844683648345, 0.17436346453127213, 0.10024188790026359, -0.03806400495624646, 0.14239434621751654, 0.18724622755842066, -0.001262875804461019, -0.02894210735360312, -0.2422992473571063, -0.052850971561531686, -0.31869241946138616, -0.03256010035659338, -0.07704461458935077, 0.07420332270212807, -0.03222454918025949, -0.1227221711278828, 0.33203974244899526, 0.10904083392842738, 0.18967864669989362, -0.02346888731293337, 0.36434836837268153, 0.133387497999857, 0.043869574879144516, 0.0843057437247575, 0.31817291920116647, 0.2138496398882464, 0.11393927239682959, -0.22645509920656942, 0.04466478198463487, 0.05752673713750271] |
711.3224 | Base manifolds for fibrations of projective irreducible symplectic
manifolds | Given a projective irreducible symplectic manifold $M$ of dimension $2n$, a
projective manifold $X$ and a surjective holomorphic map $f:M \to X$ with
connected fibers of positive dimension, we prove that $X$ is biholomorphic to
the projective space of dimension $n$. The proof is obtained by exploiting two
geometric structures at general points of $X$: the affine structure arising
from the action variables of the Lagrangian fibration $f$ and the structure
defined by the variety of minimal rational tangents on the Fano manifold $X$.
| math.AG | given a projective irreducible symplectic manifold m of dimension 2n a projective manifold x and a surjective holomorphic map fm to x with connected fibers of positive dimension we prove that x is biholomorphic to the projective space of dimension n the proof is obtained by exploiting two geometric structures at general points of x the affine structure arising from the action variables of the lagrangian fibration f and the structure defined by the variety of minimal rational tangents on the fano manifold x | [['given', 'a', 'projective', 'irreducible', 'symplectic', 'manifold', 'm', 'of', 'dimension', '2n', 'a', 'projective', 'manifold', 'x', 'and', 'a', 'surjective', 'holomorphic', 'map', 'fm', 'to', 'x', 'with', 'connected', 'fibers', 'of', 'positive', 'dimension', 'we', 'prove', 'that', 'x', 'is', 'biholomorphic', 'to', 'the', 'projective', 'space', 'of', 'dimension', 'n', 'the', 'proof', 'is', 'obtained', 'by', 'exploiting', 'two', 'geometric', 'structures', 'at', 'general', 'points', 'of', 'x', 'the', 'affine', 'structure', 'arising', 'from', 'the', 'action', 'variables', 'of', 'the', 'lagrangian', 'fibration', 'f', 'and', 'the', 'structure', 'defined', 'by', 'the', 'variety', 'of', 'minimal', 'rational', 'tangents', 'on', 'the', 'fano', 'manifold', 'x']] | [-0.26437239579501604, 0.03549968645287057, -0.0550887004328182, 0.016641184928760464, -0.07579615241515317, -0.17997013917747176, 0.0030159620523807548, 0.33973511209201424, -0.3537554418490756, -0.16376007549254046, 0.048447793166685314, -0.25224896699988414, -0.1602835861683291, 0.15777553742962136, -0.13078975810536317, 0.0065074770245701075, 0.028885503208065138, 0.10868922831113673, -0.1713878339672062, -0.3142189901222342, 0.5042119160560625, -0.10959456047220599, 0.20471962245314249, 0.0300999162178154, 0.25516421782473725, 0.01063714048359543, 0.035027029879745986, 0.007448527834120406, -0.14047305677628347, 0.17122715676114672, 0.3094074892634082, 0.06447782873042993, 0.12390067194731576, -0.3284193222588372, -0.19165608748776972, 0.23506682361697867, 0.09701405980047725, -0.0732263531868479, 0.059212508424285, -0.31002541031644104, 0.08766956074933183, -0.026761588352244525, -0.2069344651508367, -0.0856198908073739, 0.06141733421966256, -0.023935978694464125, -0.2224130780350173, -0.07063661478016348, 0.13759772656374566, 0.15928622724355332, 0.009247928148224241, -0.09301450960975628, -0.16968357789751498, 0.0411790456703221, -0.03797189575908262, 0.17584798150623793, 0.1365364671745781, -0.03191500376643879, -0.07325114204459601, 0.3414358156067984, -0.05934991301702602, -0.2866174863163559, 0.0989007734959679, -0.19649443930081492, -0.12897692802583888, 0.21918573548706868, 0.11672503465697878, 0.17154585228612027, 0.011371492107476419, 0.2628157220412201, -0.12212221146494683, 0.12027412024049443, 0.0934790267298619, -0.03018954359313717, 0.09692087803601421, 0.11428288501476691, 0.13067207439425624, 0.07029582928156569, -0.02636402525794914, -0.020575106981033014, -0.38802095511484713, -0.18812068836719154, -0.16089540877978184, 0.27629036137035917, -0.1747040279716159, -0.11692759253284228, 0.36235490174675805, -0.05190051490041826, 0.2783136265851291, 0.08412399129398788, 0.2266751495079093, -0.01912044588520768, 0.003803576193084674, 0.03223315043197501, 0.08827226318507678, 0.23195747711274417, -0.07947669514188808, -0.12360245033466656, -0.0560856195100184, 0.23088298633921936] |
711.3225 | Strong Coupling Corrections to the Ginzburg-Landau Theory of Superfluid
^{3}He | In the Ginzburg-Landau theory of superfluid $^{3}$He, the free energy is
expressed as an expansion of invariants of a complex order parameter. Strong
coupling effects, which increase with increasing pressure, are embodied in the
set of coefficients of these order parameter invariants\cite{Leg75,Thu87}.
Experiments can be used to determine four independent combinations of the
coefficients of the five fourth order invariants. This leaves the
phenomenological description of the thermodynamics near $T_{c}$ incomplete.
Theoretical understanding of these coefficients is also quite limited. We
analyze our measurements of the magnetic susceptibility and the NMR frequency
shift in the $B$-phase which refine the four experimental inputs to the
phenomenological theory. We propose a model based on existing experiments,
combined with calculations by Sauls and Serene\cite{Sau81} of the pressure
dependence of these coefficients, in order to determine all five fourth order
terms. This model leads us to a better understanding of the thermodynamics of
superfluid $^{3}$He in its various states. We discuss the surface tension of
bulk superfluid $^{3}$He and predictions for novel states of the superfluid
such as those that are stabilized by elastic scattering of quasiparticles from
a highly porous silica aerogel.
| cond-mat.supr-con | in the ginzburglandau theory of superfluid 3he the free energy is expressed as an expansion of invariants of a complex order parameter strong coupling effects which increase with increasing pressure are embodied in the set of coefficients of these order parameter invariantsciteleg75thu87 experiments can be used to determine four independent combinations of the coefficients of the five fourth order invariants this leaves the phenomenological description of the thermodynamics near t_c incomplete theoretical understanding of these coefficients is also quite limited we analyze our measurements of the magnetic susceptibility and the nmr frequency shift in the bphase which refine the four experimental inputs to the phenomenological theory we propose a model based on existing experiments combined with calculations by sauls and serenecitesau81 of the pressure dependence of these coefficients in order to determine all five fourth order terms this model leads us to a better understanding of the thermodynamics of superfluid 3he in its various states we discuss the surface tension of bulk superfluid 3he and predictions for novel states of the superfluid such as those that are stabilized by elastic scattering of quasiparticles from a highly porous silica aerogel | [['in', 'the', 'ginzburglandau', 'theory', 'of', 'superfluid', '3he', 'the', 'free', 'energy', 'is', 'expressed', 'as', 'an', 'expansion', 'of', 'invariants', 'of', 'a', 'complex', 'order', 'parameter', 'strong', 'coupling', 'effects', 'which', 'increase', 'with', 'increasing', 'pressure', 'are', 'embodied', 'in', 'the', 'set', 'of', 'coefficients', 'of', 'these', 'order', 'parameter', 'invariantsciteleg75thu87', 'experiments', 'can', 'be', 'used', 'to', 'determine', 'four', 'independent', 'combinations', 'of', 'the', 'coefficients', 'of', 'the', 'five', 'fourth', 'order', 'invariants', 'this', 'leaves', 'the', 'phenomenological', 'description', 'of', 'the', 'thermodynamics', 'near', 't_c', 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711.3226 | Supersymmetric Wilson loops on S^3 | This paper studies in great detail a family of supersymmetric Wilson loop
operators in N=4 supersymmetric Yang-Mills theory we have recently found. For a
generic curve on an S^3 in space-time the loops preserve two supercharges but
we will also study special cases which preserve 4, 8 and 16 supercharges. For
certain loops we find the string theory dual explicitly and for the general
case we show that string solutions satisfy a first order differential equation.
This equation expresses the fact that the strings are pseudo-holomorphic with
respect to a novel almost complex structure we construct on AdS_4 x S^2. We
then discuss loops restricted to S^2 and provide evidence that they can be
calculated in terms of similar observables in purely bosonic YM in two
dimensions on the sphere.
| hep-th | this paper studies in great detail a family of supersymmetric wilson loop operators in n4 supersymmetric yangmills theory we have recently found for a generic curve on an s3 in spacetime the loops preserve two supercharges but we will also study special cases which preserve 4 8 and 16 supercharges for certain loops we find the string theory dual explicitly and for the general case we show that string solutions satisfy a first order differential equation this equation expresses the fact that the strings are pseudoholomorphic with respect to a novel almost complex structure we construct on ads_4 x s2 we then discuss loops restricted to s2 and provide evidence that they can be calculated in terms of similar observables in purely bosonic ym in two dimensions on the sphere | [['this', 'paper', 'studies', 'in', 'great', 'detail', 'a', 'family', 'of', 'supersymmetric', 'wilson', 'loop', 'operators', 'in', 'n4', 'supersymmetric', 'yangmills', 'theory', 'we', 'have', 'recently', 'found', 'for', 'a', 'generic', 'curve', 'on', 'an', 's3', 'in', 'spacetime', 'the', 'loops', 'preserve', 'two', 'supercharges', 'but', 'we', 'will', 'also', 'study', 'special', 'cases', 'which', 'preserve', '4', '8', 'and', '16', 'supercharges', 'for', 'certain', 'loops', 'we', 'find', 'the', 'string', 'theory', 'dual', 'explicitly', 'and', 'for', 'the', 'general', 'case', 'we', 'show', 'that', 'string', 'solutions', 'satisfy', 'a', 'first', 'order', 'differential', 'equation', 'this', 'equation', 'expresses', 'the', 'fact', 'that', 'the', 'strings', 'are', 'pseudoholomorphic', 'with', 'respect', 'to', 'a', 'novel', 'almost', 'complex', 'structure', 'we', 'construct', 'on', 'ads_4', 'x', 's2', 'we', 'then', 'discuss', 'loops', 'restricted', 'to', 's2', 'and', 'provide', 'evidence', 'that', 'they', 'can', 'be', 'calculated', 'in', 'terms', 'of', 'similar', 'observables', 'in', 'purely', 'bosonic', 'ym', 'in', 'two', 'dimensions', 'on', 'the', 'sphere']] | [-0.150205669269109, 0.12414827203263905, -0.045640797490397324, 0.12970480205168805, -0.04634265060214182, -0.13512593920056062, -0.02844954516398362, 0.36530566287871735, -0.16701663689186366, -0.2430562122711518, 0.11058959108150493, -0.2997248924928359, -0.22163885305993833, 0.1442721645652245, -0.09059414046888169, 0.04311961361135428, 0.0318726556483083, 0.08558054574465272, -0.1416660771946996, -0.2957392435073136, 0.33441047728276596, -0.06034197481707312, 0.2397533164637235, 0.05660832474509684, 0.11547291945092954, -0.0149309654872363, 0.00913625446219857, 0.036044138632454495, -0.16245247018786568, 0.12497019782626571, 0.2127964546545767, 0.0628475249494211, 0.08701713560328174, -0.4579073243523733, -0.2131231640967039, 0.11585358027010582, 0.19778470234730497, 0.10465375259787274, 0.0005800254580278236, -0.22270494617629222, 0.08857169139843721, -0.156518963806761, -0.15976565855626876, -0.11933375055758426, 0.03306507014024716, -0.0697509745762755, -0.2149944307143764, 0.020054584506746884, 0.03761499694620187, 0.03857806909542817, -0.05210471442148376, -0.05533872011672849, -0.04613649156302787, 0.07006174788380472, 0.06973970866977022, 0.06971263476253416, 0.05647929597717638, -0.12976232851998737, -0.15968139626560374, 0.35744191126745695, -0.06987524990153571, -0.26572274937509344, 0.1408073973053923, -0.17489030576096132, -0.2510860572819813, 0.08571157104065955, 0.14042628996718962, 0.17386902566426077, -0.1398647645492859, 0.1960328691768854, -0.08894048855066873, 0.148069168217122, 0.11631806991063058, 0.03509747403396222, 0.2073278704608898, 0.06478653348122652, 0.04790282967375018, 0.16668614255031572, -0.002645434541269564, -0.1480997922221342, -0.40708292811535873, -0.18250064784660935, -0.06121667608654557, 0.10783246318594768, -0.11917980855762905, -0.16275237396789285, 0.3634741630870849, 0.09860271660682673, 0.19472700642923324, 0.06658721027018216, 0.1836495276612158, 0.12997118423764523, 0.05592917952543268, 0.0778153130104049, 0.2264420214252403, 0.133087319544015, 0.07568709922309678, -0.18228458316835502, -0.13396214992524338, 0.16016885944140646] |
711.3227 | Rare White dwarf stars with carbon atmospheres | White dwarfs represent the endpoint of stellar evolution for stars with
initial masses between approximately 0.07 msun and 8-10 msun, where msun is the
mass of the Sun (more massive stars end their life as either black holes or
neutron stars). The theory of stellar evolution predicts that the majority of
white dwarfs have a core made of carbon and oxygen, which itself is surrounded
by a helium layer and, for ~80 per cent of known white dwarfs, by an additional
hydrogen layer. All white dwarfs therefore have been traditionally found to
belong to one of two categories: those with a hydrogen-rich atmosphere (the DA
spectral type) and those with a helium-rich atmosphere (the non-DAs). Here we
report the discovery of several white dwarfs with atmospheres primarily
composed of carbon, with little or no trace of hydrogen or helium. Our analysis
shows that the atmospheric parameters found for these stars do not fit
satisfactorily in any of the currently known theories of post-asymptotic giant
branch evolution, although these objects might be the cooler counterpart of the
unique and extensively studied PG1159 star H1504+65. These stars, together with
H1504+65, might accordingly form a new evolutionary sequence that follow the
asymptotic giant branch.
| astro-ph | white dwarfs represent the endpoint of stellar evolution for stars with initial masses between approximately 007 msun and 810 msun where msun is the mass of the sun more massive stars end their life as either black holes or neutron stars the theory of stellar evolution predicts that the majority of white dwarfs have a core made of carbon and oxygen which itself is surrounded by a helium layer and for 80 per cent of known white dwarfs by an additional hydrogen layer all white dwarfs therefore have been traditionally found to belong to one of two categories those with a hydrogenrich atmosphere the da spectral type and those with a heliumrich atmosphere the nondas here we report the discovery of several white dwarfs with atmospheres primarily composed of carbon with little or no trace of hydrogen or helium our analysis shows that the atmospheric parameters found for these stars do not fit satisfactorily in any of the currently known theories of postasymptotic giant branch evolution although these objects might be the cooler counterpart of the unique and extensively studied pg1159 star h150465 these stars together with h150465 might accordingly form a new evolutionary sequence that follow the asymptotic giant branch | [['white', 'dwarfs', 'represent', 'the', 'endpoint', 'of', 'stellar', 'evolution', 'for', 'stars', 'with', 'initial', 'masses', 'between', 'approximately', '007', 'msun', 'and', '810', 'msun', 'where', 'msun', 'is', 'the', 'mass', 'of', 'the', 'sun', 'more', 'massive', 'stars', 'end', 'their', 'life', 'as', 'either', 'black', 'holes', 'or', 'neutron', 'stars', 'the', 'theory', 'of', 'stellar', 'evolution', 'predicts', 'that', 'the', 'majority', 'of', 'white', 'dwarfs', 'have', 'a', 'core', 'made', 'of', 'carbon', 'and', 'oxygen', 'which', 'itself', 'is', 'surrounded', 'by', 'a', 'helium', 'layer', 'and', 'for', '80', 'per', 'cent', 'of', 'known', 'white', 'dwarfs', 'by', 'an', 'additional', 'hydrogen', 'layer', 'all', 'white', 'dwarfs', 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711.3228 | One loop superstring effective actions and d=4 supergravity | We review our recent work on the existence of a new independent R^4 term, at
one loop, in the type IIA and heterotic effective actions, after reduction to
four dimensions, besides the usual square of the Bel-Robinson tensor. We
discuss its supersymmetrization.
| hep-th | we review our recent work on the existence of a new independent r4 term at one loop in the type iia and heterotic effective actions after reduction to four dimensions besides the usual square of the belrobinson tensor we discuss its supersymmetrization | [['we', 'review', 'our', 'recent', 'work', 'on', 'the', 'existence', 'of', 'a', 'new', 'independent', 'r4', 'term', 'at', 'one', 'loop', 'in', 'the', 'type', 'iia', 'and', 'heterotic', 'effective', 'actions', 'after', 'reduction', 'to', 'four', 'dimensions', 'besides', 'the', 'usual', 'square', 'of', 'the', 'belrobinson', 'tensor', 'we', 'discuss', 'its', 'supersymmetrization']] | [-0.135098277280728, 0.09390322862946916, -0.00816945253782684, 0.06685856175387189, -0.11601646000608093, -0.12511481098564609, 0.022280306023146425, 0.27858884920853944, -0.17075791874057836, -0.21559573834141096, 0.1585090365454865, -0.2913556245953909, -0.1983782317311991, 0.11509249918162823, -0.08157524060724038, -0.04692116712491649, -0.011512251426687553, 0.09514105103776924, -0.13143577740438991, -0.36401625962129663, 0.39094659384517444, 0.01332529288317476, 0.2700877028705907, 0.06420318978018172, 0.15088056831709332, 0.008818617401023706, -0.06050235033035278, -0.0030611634165758177, -0.14283736045694068, 0.16631785200332247, 0.15416954965552404, 0.06306590677160698, 0.1647012069200476, -0.43678453529164907, -0.21184919113736778, 0.0700540045010192, 0.12705292186832853, 0.15231987922119775, 0.011327817684061648, -0.22739367701468013, 0.05797679384704679, -0.2044568534363948, -0.17671548370050177, -0.09992364308397685, 0.04206194070034793, -0.09049484173634223, -0.19437165050822797, 0.058221698258421384, 0.05822145752608776, 0.03158800175324792, -0.06570071358111731, -0.16986841584245363, 0.03063438537286683, 0.08809118370880328, 0.15300096212221043, 0.04197107904058482, 0.09104119296673507, -0.16244042458544886, -0.15438421547324174, 0.3199467659883556, -0.13430282912616218, -0.19553766621365434, 0.17210132602070058, -0.07711405007700835, -0.21109365742831004, 0.06360943801701069, 0.1051129364807691, 0.13307637421946442, -0.11802426470621001, 0.15790681319083974, -0.0003487833337636576, 0.09671675512522813, 0.07168223744346983, 0.07357266993217525, 0.1947338740075273, 0.13753531553915568, 0.069334812406894, 0.12632609796266825, -0.06410793861972966, -0.1121554082215187, -0.46724017940106843, -0.14176854136444272, -0.09109056172227221, 0.12436125502877292, -0.14747994520578123, -0.16124987062288537, 0.43622845016597284, 0.10515814540641648, 0.1557880857352367, 0.06873629534883159, 0.23680528967330852, 0.053575864230792615, 0.08949647975775103, 0.02383853830508001, 0.26945200908396927, 0.13537372917025572, 0.11421695858284477, -0.25274889330778805, -0.14946006162790582, 0.20735818527949354] |
711.3229 | Liv\v{s}ic Theorems for Non-Commutative Groups including Diffeomorphism
Groups and Results on the Existence of Conformal Structures for Anosov
Systems | The celebrated Livsic theorem states that given M a manifold, a Lie group G,
a transitive Anosov diffeomorphism f on M and a Holder function \eta: M \mapsto
G whose range is sufficiently close to the identity, it is sufficient for the
existence of \phi :M \mapsto G satisfying \eta(x) = \phi(f(x)) \phi(x)^{-1}
that a condition -- obviously necessary -- on the cocycle generated by \eta
restricted to periodic orbits is satisfied. In this paper we present a new
proof of the main result. These methods allow us to treat cocycles taking
values in the group of diffeomorphisms of a compact manifold. This has
applications to rigidity theory. The localization procedure we develop can be
applied to obtain some new results on the existence of conformal structures for
Anosov systems.
| math.DS | the celebrated livsic theorem states that given m a manifold a lie group g a transitive anosov diffeomorphism f on m and a holder function eta m mapsto g whose range is sufficiently close to the identity it is sufficient for the existence of phi m mapsto g satisfying etax phifx phix1 that a condition obviously necessary on the cocycle generated by eta restricted to periodic orbits is satisfied in this paper we present a new proof of the main result these methods allow us to treat cocycles taking values in the group of diffeomorphisms of a compact manifold this has applications to rigidity theory the localization procedure we develop can be applied to obtain some new results on the existence of conformal structures for anosov systems | [['the', 'celebrated', 'livsic', 'theorem', 'states', 'that', 'given', 'm', 'a', 'manifold', 'a', 'lie', 'group', 'g', 'a', 'transitive', 'anosov', 'diffeomorphism', 'f', 'on', 'm', 'and', 'a', 'holder', 'function', 'eta', 'm', 'mapsto', 'g', 'whose', 'range', 'is', 'sufficiently', 'close', 'to', 'the', 'identity', 'it', 'is', 'sufficient', 'for', 'the', 'existence', 'of', 'phi', 'm', 'mapsto', 'g', 'satisfying', 'etax', 'phifx', 'phix1', 'that', 'a', 'condition', 'obviously', 'necessary', 'on', 'the', 'cocycle', 'generated', 'by', 'eta', 'restricted', 'to', 'periodic', 'orbits', 'is', 'satisfied', 'in', 'this', 'paper', 'we', 'present', 'a', 'new', 'proof', 'of', 'the', 'main', 'result', 'these', 'methods', 'allow', 'us', 'to', 'treat', 'cocycles', 'taking', 'values', 'in', 'the', 'group', 'of', 'diffeomorphisms', 'of', 'a', 'compact', 'manifold', 'this', 'has', 'applications', 'to', 'rigidity', 'theory', 'the', 'localization', 'procedure', 'we', 'develop', 'can', 'be', 'applied', 'to', 'obtain', 'some', 'new', 'results', 'on', 'the', 'existence', 'of', 'conformal', 'structures', 'for', 'anosov', 'systems']] | [-0.22668110049654921, 0.09963264800090757, -0.12885113202390217, 0.05343880105693455, -0.11139191301273448, -0.16557391076200892, 0.03110857969168426, 0.3298841486758893, -0.26645083469708286, -0.22338522196052565, 0.09428879849535103, -0.21781613660739765, -0.14731757533514783, 0.21889418220546628, -0.1287653530386114, 0.03828316559150745, 0.08259536284169862, 0.09621601999231008, -0.1009297467664712, -0.21042762468347237, 0.3754644854592958, -0.041482062714677005, 0.1764349334740213, 0.05757568807282027, 0.12437750474505481, 0.00584319557177849, 0.03709117453064888, 0.0001061257484945513, -0.20408739407220208, 0.0982743213595342, 0.23972027021504583, 0.07890291003850362, 0.25624511227203856, -0.31261950203528005, -0.18281161410379268, 0.18333796774672848, 0.09120403916116744, -0.01971395880663915, -0.031337004078234296, -0.3292510364618566, 0.1767719745532506, -0.1292332306001631, -0.17564679282746973, -0.10014118920893424, 0.08339776443169704, -0.008265729232262525, -0.29555928464683273, 0.025542241580311268, 0.151471365893644, 0.057787611260123196, -0.061760326001113135, -0.056766243004757494, -0.048550214947363925, 0.12719881860539317, 0.014746155828193185, 0.11343615691340159, 0.12072832741966796, -0.012509832121727486, -0.05130940423687062, 0.37512433695946895, -0.0846203564137723, -0.24936394281094038, 0.17034898211233437, -0.15986061450611386, -0.22577011945938308, 0.1244784397745712, 0.13743335797288825, 0.16599517312669565, -0.0863377730942346, 0.17961036004745107, -0.11151978876885205, 0.10675739916041493, 0.06394840675657468, -0.027464256244933323, 0.12434008455925828, 0.07971072892311014, 0.17219958264086882, 0.10578612329545505, 0.03248742763285658, 0.033681486729562046, -0.3697804247753488, -0.1436162977146783, -0.15352964715012127, 0.17419862730931196, -0.0781920729906045, -0.15451961173675954, 0.37020369956181165, 0.09581385370810971, 0.19100034236168814, 0.12046722552391685, 0.18865600692123055, 0.1028135614797643, 0.061129406216509995, 0.08710529025466669, 0.13320552136324945, 0.24994296387821022, 0.0330485119068596, -0.14366457214771164, -0.033175650329905604, 0.1860317207599384] |
711.323 | Many-body Landau-Zener tunneling in the Bose-Hubbard model | We study a model for ultracold, spinless atoms in quasi-one dimensional
optical lattices and subjected to a tunable tilting force. Statistical tests
are employed to quantitatively characterize the spectrum of the Floquet-Bloch
operator of the system along the transition from the regular to the quantum
chaotic regime. Moreover, we perturbatively include the coupling of the
one-band model to the second energy band. This allows us to study the
Landau-Zener interband tunneling within a truly many-body description of
ultracold atoms. The distributions of the computed tunneling rates provide an
independent and experimentally accessible signature of the regular-chaotic
transition.
| cond-mat.str-el | we study a model for ultracold spinless atoms in quasione dimensional optical lattices and subjected to a tunable tilting force statistical tests are employed to quantitatively characterize the spectrum of the floquetbloch operator of the system along the transition from the regular to the quantum chaotic regime moreover we perturbatively include the coupling of the oneband model to the second energy band this allows us to study the landauzener interband tunneling within a truly manybody description of ultracold atoms the distributions of the computed tunneling rates provide an independent and experimentally accessible signature of the regularchaotic transition | [['we', 'study', 'a', 'model', 'for', 'ultracold', 'spinless', 'atoms', 'in', 'quasione', 'dimensional', 'optical', 'lattices', 'and', 'subjected', 'to', 'a', 'tunable', 'tilting', 'force', 'statistical', 'tests', 'are', 'employed', 'to', 'quantitatively', 'characterize', 'the', 'spectrum', 'of', 'the', 'floquetbloch', 'operator', 'of', 'the', 'system', 'along', 'the', 'transition', 'from', 'the', 'regular', 'to', 'the', 'quantum', 'chaotic', 'regime', 'moreover', 'we', 'perturbatively', 'include', 'the', 'coupling', 'of', 'the', 'oneband', 'model', 'to', 'the', 'second', 'energy', 'band', 'this', 'allows', 'us', 'to', 'study', 'the', 'landauzener', 'interband', 'tunneling', 'within', 'a', 'truly', 'manybody', 'description', 'of', 'ultracold', 'atoms', 'the', 'distributions', 'of', 'the', 'computed', 'tunneling', 'rates', 'provide', 'an', 'independent', 'and', 'experimentally', 'accessible', 'signature', 'of', 'the', 'regularchaotic', 'transition']] | [-0.14833270533720858, 0.18220459580191617, -0.06438948054193068, 0.0722671387916354, 0.01481935794983712, -0.18770809959831466, 0.09108752155071605, 0.36052335613436, -0.2728799357674248, -0.21443781623443992, -0.035770590845543467, -0.2943288486994882, -0.11469963108448639, 0.18438533109315125, 0.04913071821174901, 0.07448976740394671, 0.009701237087282016, -0.016898192501010028, -0.06731363053712033, -0.18702885273306333, 0.3073153691318309, 0.06145016386140061, 0.277865136306272, 0.06528496121046777, 0.05562840995484406, 0.0346903422002479, 0.07673227510501429, -0.014389642888737708, -0.20329788598932863, 0.11702778731885645, 0.24560193378075035, -0.06995624683255187, 0.19104647326772822, -0.4358057323843241, -0.19615922710791076, 0.07596138919962897, 0.14789529956070727, 0.20331654039490007, -0.006657183794400741, -0.3309533650021923, -0.04977026406061096, -0.19474974964006045, -0.14987088526723927, -0.14851639094311245, -0.01736664291310422, -0.0075477353662021995, -0.2665384280802586, 0.0681820540431198, 0.03454587505962316, 0.06646513004700855, -0.0953239159899783, 0.020745332507637434, 0.0028038049961641894, 0.09398503712445651, -0.029990776415587853, -0.01953437822131613, 0.12092529508986116, -0.09652956235848101, -0.12929077072491504, 0.4198818381434095, -0.09573449427321956, -0.13644308706783911, 0.22221271590537933, -0.19450203796906262, -0.051157729685805814, 0.1537137505953613, 0.14947333497945794, 0.08370785070487212, -0.16450232167046555, 0.10283730927849975, -0.037842907318749376, 0.15154819352763524, 0.0207967194080468, 0.07434328712676604, 0.23069716790287764, 0.15954161799733632, 0.01023441129940149, 0.18573133985406345, -0.12325750068718203, -0.1318872066013054, -0.269464314704012, -0.13954433625007107, -0.2293384833856649, 0.05318401871517915, -0.04531973389849864, -0.20372675554154768, 0.45361391919876265, 0.19166286781216615, 0.19900254483008278, -0.016682736474790218, 0.2512731573774873, 0.15693929979635268, 0.019421084645353064, -0.017763302003791958, 0.2604043186286983, 0.19189934452669216, 0.059129372949606365, -0.30398443598599056, -0.032734313130033076, 0.06423553065444852] |
711.3231 | Highly Frustrated Magnetic Clusters: The kagome on a sphere | We present a detailed study of the low-energy excitations of two existing
finite-size realizations of the planar kagome Heisenberg antiferromagnet on the
sphere, the cuboctahedron and the icosidodecahedron. After highlighting a
number of special spectral features (such as the presence of low-lying singlets
below the first triplet and the existence of localized magnons) we focus on two
major issues. The first concerns the nature of the excitations above the
plateau phase at 1/3 of the saturation magnetization Ms. Our exact
diagonalizations for the s=1/2 icosidodecahedron reveal that the low-lying
plateau states are adiabatically connected to the degenerate collinear
``up-up-down'' ground states of the Ising point, at the same time being well
isolated from higher excitations. A complementary physical picture emerges from
the derivation of an effective quantum dimer model which reveals the central
role of the topology and the intrinsic spin s. We also give a prediction for
the low energy excitations and thermodynamic properties of the spin s=5/2
icosidodecahedron Mo72Fe30. In the second part we focus on the low-energy
spectra of the s>1/2 Heisenberg model in view of interpreting the broad
inelastic neutron scattering response reported for Mo72Fe30. To this end we
demonstrate the simultaneous presence of several broadened low-energy ``towers
of states'' or ``rotational bands'' which arise from the large discrete spatial
degeneracy of the classical ground states, a generic feature of highly
frustrated clusters. This semiclassical interpretation is further corroborated
by their striking symmetry pattern which is shown, by an independent group
theoretical analysis, to be a characteristic fingerprint of the classical
coplanar ground states.
| cond-mat.other | we present a detailed study of the lowenergy excitations of two existing finitesize realizations of the planar kagome heisenberg antiferromagnet on the sphere the cuboctahedron and the icosidodecahedron after highlighting a number of special spectral features such as the presence of lowlying singlets below the first triplet and the existence of localized magnons we focus on two major issues the first concerns the nature of the excitations above the plateau phase at 13 of the saturation magnetization ms our exact diagonalizations for the s12 icosidodecahedron reveal that the lowlying plateau states are adiabatically connected to the degenerate collinear upupdown ground states of the ising point at the same time being well isolated from higher excitations a complementary physical picture emerges from the derivation of an effective quantum dimer model which reveals the central role of the topology and the intrinsic spin s we also give a prediction for the low energy excitations and thermodynamic properties of the spin s52 icosidodecahedron mo72fe30 in the second part we focus on the lowenergy spectra of the s12 heisenberg model in view of interpreting the broad inelastic neutron scattering response reported for mo72fe30 to this end we demonstrate the simultaneous presence of several broadened lowenergy towers of states or rotational bands which arise from the large discrete spatial degeneracy of the classical ground states a generic feature of highly frustrated clusters this semiclassical interpretation is further corroborated by their striking symmetry pattern which is shown by an independent group theoretical analysis to be a characteristic fingerprint of the classical coplanar ground states | [['we', 'present', 'a', 'detailed', 'study', 'of', 'the', 'lowenergy', 'excitations', 'of', 'two', 'existing', 'finitesize', 'realizations', 'of', 'the', 'planar', 'kagome', 'heisenberg', 'antiferromagnet', 'on', 'the', 'sphere', 'the', 'cuboctahedron', 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711.3232 | Is NGC 3108 transforming itself from an early to late type galaxy -- an
astronomical hermaphrodite? | A common feature of hierarchical galaxy formation models is the process of
"inverse" morphological transformation: a bulge dominated galaxy accretes a gas
disk, dramatically reducing the system's bulge-to-disk mass ratio. During their
formation, present day galaxies may execute many such cycles across the Hubble
diagram. A good candidate for such a "hermaphrodite" galaxy is NGC 3108: a
dust-lane early-type galaxy which has a large amount of HI gas distributed in a
large scale disk. We present narrow band H_alpha and R-band imaging, and
compare the results with the HI distribution. The emission is in two
components: a nuclear bar and an extended disk component which coincides with
the HI distribution. This suggests that a stellar disk is currently being
formed out of the HI gas. The spatial distributions of the H_alpha and HI
emission and the HII regions are consistent with a barred spiral structure,
extending some 20 kpc in radius. We measure an extinction- corrected SFR of
0.42 Msun/yr. The luminosity function of the HII regions is similar to other
spiral galaxies, with a power law index of -2.1, suggesting that the star
formation mechanism is similar to other spiral galaxies. We measured the
current disk mass and find that it is too massive to have been formed by the
current SFR over the last few Gyr. It is likely that the SFR in NGC 3108 was
higher in the past. With the current SFR, the disk in NGC 3108 will grow to be
~6.2x10^9 Msun in stellar mass within the next 5.5 Gyr. While this is
substantial, the disk will be insignificant compared with the large bulge mass:
the final stellar mass disk-to-bulge ratio will be ~0.02. NGC 3108 will fail to
transform into anything resembling a spiral without a boost in the SFR and
additional supply of gas.
| astro-ph | a common feature of hierarchical galaxy formation models is the process of inverse morphological transformation a bulge dominated galaxy accretes a gas disk dramatically reducing the systems bulgetodisk mass ratio during their formation present day galaxies may execute many such cycles across the hubble diagram a good candidate for such a hermaphrodite galaxy is ngc 3108 a dustlane earlytype galaxy which has a large amount of hi gas distributed in a large scale disk we present narrow band h_alpha and rband imaging and compare the results with the hi distribution the emission is in two components a nuclear bar and an extended disk component which coincides with the hi distribution this suggests that a stellar disk is currently being formed out of the hi gas the spatial distributions of the h_alpha and hi emission and the hii regions are consistent with a barred spiral structure extending some 20 kpc in radius we measure an extinction corrected sfr of 042 msunyr the luminosity function of the hii regions is similar to other spiral galaxies with a power law index of 21 suggesting that the star formation mechanism is similar to other spiral galaxies we measured the current disk mass and find that it is too massive to have been formed by the current sfr over the last few gyr it is likely that the sfr in ngc 3108 was higher in the past with the current sfr the disk in ngc 3108 will grow to be 62x109 msun in stellar mass within the next 55 gyr while this is substantial the disk will be insignificant compared with the large bulge mass the final stellar mass disktobulge ratio will be 002 ngc 3108 will fail to transform into anything resembling a spiral without a boost in the sfr and additional supply of gas | [['a', 'common', 'feature', 'of', 'hierarchical', 'galaxy', 'formation', 'models', 'is', 'the', 'process', 'of', 'inverse', 'morphological', 'transformation', 'a', 'bulge', 'dominated', 'galaxy', 'accretes', 'a', 'gas', 'disk', 'dramatically', 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711.3233 | Counting the negative eigenvalues of the thermalon in three dimensions | Some years ago it was shown that the cosmological constant may be reduced by
thermal production of membranes that, after nucleation, collapse into a black
hole. The probability of the process was calculated in the leading
semiclassical approximation by studying an associated Euclidean configuration
called the thermalon. Here we investigate the thermalon in three spacetime
dimensions, describing the nucleation of closed strings that collapse into
point particle singularities. In this context we may analyze the one-loop
structure without the well known problems brought in by the propagating
gravitational degrees of freedom. We found that the coupling to gravity may
increase the number of negative eigenvalues of the operator.
| hep-th | some years ago it was shown that the cosmological constant may be reduced by thermal production of membranes that after nucleation collapse into a black hole the probability of the process was calculated in the leading semiclassical approximation by studying an associated euclidean configuration called the thermalon here we investigate the thermalon in three spacetime dimensions describing the nucleation of closed strings that collapse into point particle singularities in this context we may analyze the oneloop structure without the well known problems brought in by the propagating gravitational degrees of freedom we found that the coupling to gravity may increase the number of negative eigenvalues of the operator | [['some', 'years', 'ago', 'it', 'was', 'shown', 'that', 'the', 'cosmological', 'constant', 'may', 'be', 'reduced', 'by', 'thermal', 'production', 'of', 'membranes', 'that', 'after', 'nucleation', 'collapse', 'into', 'a', 'black', 'hole', 'the', 'probability', 'of', 'the', 'process', 'was', 'calculated', 'in', 'the', 'leading', 'semiclassical', 'approximation', 'by', 'studying', 'an', 'associated', 'euclidean', 'configuration', 'called', 'the', 'thermalon', 'here', 'we', 'investigate', 'the', 'thermalon', 'in', 'three', 'spacetime', 'dimensions', 'describing', 'the', 'nucleation', 'of', 'closed', 'strings', 'that', 'collapse', 'into', 'point', 'particle', 'singularities', 'in', 'this', 'context', 'we', 'may', 'analyze', 'the', 'oneloop', 'structure', 'without', 'the', 'well', 'known', 'problems', 'brought', 'in', 'by', 'the', 'propagating', 'gravitational', 'degrees', 'of', 'freedom', 'we', 'found', 'that', 'the', 'coupling', 'to', 'gravity', 'may', 'increase', 'the', 'number', 'of', 'negative', 'eigenvalues', 'of', 'the', 'operator']] | [-0.15468752322205412, 0.18287522582613747, -0.082532576052472, 0.10134156085117259, -0.030042676315470425, -0.08454278033416442, 0.010858540004981612, 0.2972814512775383, -0.23411635810043663, -0.258174303099858, 0.06828944838963691, -0.26813223074121334, -0.15352015285235313, 0.1314911081992452, -0.02149084942087669, 0.0172607364969466, 0.029475306040021004, 0.04767164403865873, -0.0676727300139006, -0.25687061778498227, 0.3505541839533382, 0.08921367686060774, 0.2325871013367928, 0.06822728805019762, 0.08858799917140493, -0.019664181137664452, -0.0020237583812559023, 0.06251777696457726, -0.16489506980104596, 0.05051673162099043, 0.19418863369220937, 0.1017161788660343, 0.24209599927524794, -0.47109476486393426, -0.26439673199180375, 0.08597170440501671, 0.19392015598283183, 0.1588017364480981, -0.06100656316913147, -0.2732808596747755, 0.05075278627272281, -0.1553986151745819, -0.18408785520626192, -0.038101228532872886, 0.034467074084440594, -0.04898661113326886, -0.18607978689801208, 0.07469117582378978, 0.04356365639358518, -0.05063165180493983, -0.07334511743694613, -0.06731787964235991, -0.043542747318968865, 0.07884915492117957, 0.09566138580811201, 0.025133146286760975, 0.13181255652603727, -0.13632982108457428, -0.13632379869361305, 0.37881780268313986, -0.06358713379143376, -0.1861346934887546, 0.13474351111627011, -0.1966374397614143, -0.09193699832583123, 0.15197893900417345, 0.13712075682943342, 0.11379601207887323, -0.17087321541394987, 0.12178122511788926, 0.02503792469010309, 0.12151874938502226, 0.157044853075166, 0.008663096128859453, 0.26055317339314904, 0.13652610978008145, -0.004867656691068852, 0.16247566838434, -0.06748111963463964, -0.15141062687918613, -0.31505819211748465, -0.16392314863710286, -0.16295916662999876, 0.11273080595398184, -0.14503368407625844, -0.17742225926243313, 0.3666995033552801, 0.11052964343818733, 0.17646568947626898, -0.006573854143627816, 0.22113822252248172, 0.11676440557952177, 0.07297018575870122, 0.07196973880140663, 0.29485113454979406, 0.13562405497241006, 0.0703478220061192, -0.2454122058083562, 0.01972640197103222, 0.08779455329446743] |
711.3234 | Constraints on Gauss-Bonnet Cosmologies | The modified Gauss-Bonnet gravity can be motivated by a number of physical
reasons, including: the uniqueness of a gravitational Lagrangian in four and
higher dimensions and the leading order $\alpha^\prime$ corrections in
superstring theory. Such an effective theory of scalar-tensor gravity has been
modeled in the recent past to explain both the initial cosmological singularity
problem and the observationally supported cosmological perturbations. Here I
present an overview of the recent developments in the use of modified
Gauss-Bonnet gravity to explain current observations, touching on key
cosmological and astrophysical constraints applicable to theories of
scalar-tensor gravity. The Gauss-Bonnet type modification of Einstein's theory
admits nonsingular solutions for a wide range of scalar-curvature couplings. It
also provides plausible explanation to some outstanding cosmological
conundrums, including: the transition from matter dominance to dark energy and
the late time cosmic acceleration. The focus is placed here to constrain such
an effective theory of gravity against the recent cosmological and
astrophysical observations.
| hep-th astro-ph gr-qc | the modified gaussbonnet gravity can be motivated by a number of physical reasons including the uniqueness of a gravitational lagrangian in four and higher dimensions and the leading order alphaprime corrections in superstring theory such an effective theory of scalartensor gravity has been modeled in the recent past to explain both the initial cosmological singularity problem and the observationally supported cosmological perturbations here i present an overview of the recent developments in the use of modified gaussbonnet gravity to explain current observations touching on key cosmological and astrophysical constraints applicable to theories of scalartensor gravity the gaussbonnet type modification of einsteins theory admits nonsingular solutions for a wide range of scalarcurvature couplings it also provides plausible explanation to some outstanding cosmological conundrums including the transition from matter dominance to dark energy and the late time cosmic acceleration the focus is placed here to constrain such an effective theory of gravity against the recent cosmological and astrophysical observations | [['the', 'modified', 'gaussbonnet', 'gravity', 'can', 'be', 'motivated', 'by', 'a', 'number', 'of', 'physical', 'reasons', 'including', 'the', 'uniqueness', 'of', 'a', 'gravitational', 'lagrangian', 'in', 'four', 'and', 'higher', 'dimensions', 'and', 'the', 'leading', 'order', 'alphaprime', 'corrections', 'in', 'superstring', 'theory', 'such', 'an', 'effective', 'theory', 'of', 'scalartensor', 'gravity', 'has', 'been', 'modeled', 'in', 'the', 'recent', 'past', 'to', 'explain', 'both', 'the', 'initial', 'cosmological', 'singularity', 'problem', 'and', 'the', 'observationally', 'supported', 'cosmological', 'perturbations', 'here', 'i', 'present', 'an', 'overview', 'of', 'the', 'recent', 'developments', 'in', 'the', 'use', 'of', 'modified', 'gaussbonnet', 'gravity', 'to', 'explain', 'current', 'observations', 'touching', 'on', 'key', 'cosmological', 'and', 'astrophysical', 'constraints', 'applicable', 'to', 'theories', 'of', 'scalartensor', 'gravity', 'the', 'gaussbonnet', 'type', 'modification', 'of', 'einsteins', 'theory', 'admits', 'nonsingular', 'solutions', 'for', 'a', 'wide', 'range', 'of', 'scalarcurvature', 'couplings', 'it', 'also', 'provides', 'plausible', 'explanation', 'to', 'some', 'outstanding', 'cosmological', 'conundrums', 'including', 'the', 'transition', 'from', 'matter', 'dominance', 'to', 'dark', 'energy', 'and', 'the', 'late', 'time', 'cosmic', 'acceleration', 'the', 'focus', 'is', 'placed', 'here', 'to', 'constrain', 'such', 'an', 'effective', 'theory', 'of', 'gravity', 'against', 'the', 'recent', 'cosmological', 'and', 'astrophysical', 'observations']] | [-0.1481128480392182, 0.09267435844490456, -0.09745055514500495, 0.1275691104271289, -0.1471251586724998, -0.15350908982703926, -0.07877133779411626, 0.24525642296548483, -0.20539955949636213, -0.32976497908472824, 0.06293663988186485, -0.24260198098316693, -0.11894600165735005, 0.16849124140460578, -0.050002190144287695, 0.03295625985309387, -0.04632552977129342, 0.02006837561916394, -0.057948868025456124, -0.2756654774061268, 0.3627787022443583, 0.11027991890634416, 0.18759122998661296, 0.07497754135720763, 0.09588583082162366, -0.06871507168676301, -0.04861214998397668, 0.06996466683010293, -0.2066912079751966, 0.06476221402000731, 0.2122059413798229, 0.13505688042285005, 0.21707546249607423, -0.46360713315854785, -0.31681868779787403, 0.08438671342761606, 0.10704358334943748, 0.1790075137748555, -0.08730648875986909, -0.28284188410990935, 0.023058645080761674, -0.20865910771973195, -0.14400925200171533, -0.055426867749945374, 0.04417061885955275, -0.049845923639976294, -0.21287890021232472, 0.07644794733433355, -0.03251720740086144, -0.035237219789700146, -0.10247498137022185, -0.07172142018291174, 0.025352010948310612, 0.040735085691313504, 0.1643965404857377, 0.05255074939871456, 0.11069225900729371, -0.17946039250559487, -0.11840554307790319, 0.44176556953009527, -0.14312903582679024, -0.15064741790911573, 0.18409560936959876, -0.14628295568084926, -0.19319136534182793, 0.06261670907105135, 0.11325389322688341, 0.13548236099287947, -0.13363056170166868, 0.19123843668850293, 0.04795417833219098, 0.12097958332686952, 0.08527774045801466, 0.057696131805468134, 0.35750032861117914, 0.13958808144993462, -0.0005674442917013623, 0.033102529004044166, -0.045481856781870694, -0.1020563337655299, -0.37191699219832, -0.11952779651322895, -0.12315703474080107, 0.09232070150111867, -0.17334033091716428, -0.16480208508919475, 0.3595116123568955, 0.1810436110860508, 0.12404231418808033, 0.044905937336100515, 0.24670740348364043, 0.06442316222689737, 0.017556226073770196, 0.01758935786249816, 0.3527525888415199, 0.18445707330403102, 0.10730734432952561, -0.24542021514717371, -0.029711375722608225, 0.067170374688639] |
711.3235 | A Game-Theoretic Analysis of Updating Sets of Probabilities | We consider how an agent should update her uncertainty when it is represented
by a set $\P$ of probability distributions and the agent observes that a random
variable $X$ takes on value $x$, given that the agent makes decisions using the
minimax criterion, perhaps the best-studied and most commonly-used criterion in
the literature. We adopt a game-theoretic framework, where the agent plays
against a bookie, who chooses some distribution from $\P$. We consider two
reasonable games that differ in what the bookie knows when he makes his choice.
Anomalies that have been observed before, like time inconsistency, can be
understood as arising important because different games are being played,
against bookies with different information. We characterize the important
special cases in which the optimal decision rules according to the minimax
criterion amount to either conditioning or simply ignoring the information.
Finally, we consider the relationship between conditioning and calibration when
uncertainty is described by sets of probabilities.
| cs.AI math.ST stat.TH | we consider how an agent should update her uncertainty when it is represented by a set p of probability distributions and the agent observes that a random variable x takes on value x given that the agent makes decisions using the minimax criterion perhaps the beststudied and most commonlyused criterion in the literature we adopt a gametheoretic framework where the agent plays against a bookie who chooses some distribution from p we consider two reasonable games that differ in what the bookie knows when he makes his choice anomalies that have been observed before like time inconsistency can be understood as arising important because different games are being played against bookies with different information we characterize the important special cases in which the optimal decision rules according to the minimax criterion amount to either conditioning or simply ignoring the information finally we consider the relationship between conditioning and calibration when uncertainty is described by sets of probabilities | [['we', 'consider', 'how', 'an', 'agent', 'should', 'update', 'her', 'uncertainty', 'when', 'it', 'is', 'represented', 'by', 'a', 'set', 'p', 'of', 'probability', 'distributions', 'and', 'the', 'agent', 'observes', 'that', 'a', 'random', 'variable', 'x', 'takes', 'on', 'value', 'x', 'given', 'that', 'the', 'agent', 'makes', 'decisions', 'using', 'the', 'minimax', 'criterion', 'perhaps', 'the', 'beststudied', 'and', 'most', 'commonlyused', 'criterion', 'in', 'the', 'literature', 'we', 'adopt', 'a', 'gametheoretic', 'framework', 'where', 'the', 'agent', 'plays', 'against', 'a', 'bookie', 'who', 'chooses', 'some', 'distribution', 'from', 'p', 'we', 'consider', 'two', 'reasonable', 'games', 'that', 'differ', 'in', 'what', 'the', 'bookie', 'knows', 'when', 'he', 'makes', 'his', 'choice', 'anomalies', 'that', 'have', 'been', 'observed', 'before', 'like', 'time', 'inconsistency', 'can', 'be', 'understood', 'as', 'arising', 'important', 'because', 'different', 'games', 'are', 'being', 'played', 'against', 'bookies', 'with', 'different', 'information', 'we', 'characterize', 'the', 'important', 'special', 'cases', 'in', 'which', 'the', 'optimal', 'decision', 'rules', 'according', 'to', 'the', 'minimax', 'criterion', 'amount', 'to', 'either', 'conditioning', 'or', 'simply', 'ignoring', 'the', 'information', 'finally', 'we', 'consider', 'the', 'relationship', 'between', 'conditioning', 'and', 'calibration', 'when', 'uncertainty', 'is', 'described', 'by', 'sets', 'of', 'probabilities']] | [-0.06209341715131501, 0.08085176531030058, -0.11531354156826996, 0.11584581270633017, -0.10168906992559386, -0.22854131685308876, 0.12750639616375326, 0.4126046120550982, -0.2705108023368736, -0.2993591180705958, 0.11388887967513933, -0.27850739820563725, -0.1385485620792528, 0.11814995571061862, -0.15330142614870645, 0.009104879345347405, 0.04607025582853491, 0.09939796054605277, 0.003802821285589628, -0.2826417123329393, 0.3485423606363641, 0.05292988254742068, 0.25230852011472554, -0.03238461820918853, 0.11963923228816552, 0.07566205632522892, -0.03062297232544708, 0.046196410530741285, -0.12476576666980181, 0.05244535638855853, 0.29226242008346137, 0.1904747318142764, 0.35860102604593597, -0.3963439506315478, -0.18182390202489343, 0.15890300673118252, 0.08454193103655129, 0.07761224318565622, 0.025969491575367803, -0.24870994585643338, 0.05893385210474894, -0.16015643074924638, -0.07099985771969697, -0.027706542202111356, 0.03230181497456447, 0.004549358262544035, -0.3132380226294801, 0.022741691448138493, 0.06656968696814054, 0.020058135849061857, -0.03360502500009907, -0.15522725470097154, -0.012765702146408, 0.1720104486913981, 0.0744456637170237, 0.011100966381027725, 0.15413086976749218, -0.12334689286620516, -0.12769608820379255, 0.3891653249360574, -0.025713569848356283, -0.20085912871109263, 0.14088981890469598, -0.10958488012669952, -0.14292082762728284, 0.06231250938481894, 0.12470509791761565, 0.10674392884437019, -0.1495724401115492, 0.040400343934182674, -0.08120153833345278, 0.14853728401020858, 0.07056261442459313, 0.0305261826617228, 0.18658522669386096, 0.13038410531107786, 0.07491376864127697, 0.12045238190997914, -0.0517528552137861, -0.15502994296965517, -0.30170353765415536, -0.10559435876288042, -0.16509541761942778, 0.06043845840735705, -0.08316677387859035, -0.09296949088549727, 0.302513814970234, 0.17805327989522865, 0.19752418886663267, 0.024949081704038298, 0.2687748611732653, 0.12026514566607646, -0.0037933830372028194, 0.085798935030415, 0.21311732402140315, 0.0497698996032167, 0.044548596359291086, -0.1674097526779956, 0.2238154911026833, 0.05111774848032577] |
711.3236 | Confidence intervals in regression utilizing prior information | We consider a linear regression model with regression parameter
beta=(beta_1,...,beta_p) and independent and identically N(0,sigma^2)
distributed errors. Suppose that the parameter of interest is theta = a^T beta
where a is a specified vector. Define the parameter tau=c^T beta-t where the
vector c and the number t are specified and a and c are linearly independent.
Also suppose that we have uncertain prior information that tau = 0. We present
a new frequentist 1-alpha confidence interval for theta that utilizes this
prior information. We require this confidence interval to (a) have endpoints
that are continuous functions of the data and (b) coincide with the standard
1-alpha confidence interval when the data strongly contradicts this prior
information. This interval is optimal in the sense that it has minimum weighted
average expected length where the largest weight is given to this expected
length when tau=0. This minimization leads to an interval that has the
following desirable properties. This interval has expected length that (a) is
relatively small when the prior information about tau is correct and (b) has a
maximum value that is not too large. The following problem will be used to
illustrate the application of this new confidence interval. Consider a 2-by 2
factorial experiment with 20 replicates. Suppose that the parameter of interest
theta is a specified simple effect and that we have uncertain prior information
that the two-factor interaction is zero. Our aim is to find a frequentist 0.95
confidence interval for theta that utilizes this prior information.
| stat.ME | we consider a linear regression model with regression parameter betabeta_1beta_p and independent and identically n0sigma2 distributed errors suppose that the parameter of interest is theta at beta where a is a specified vector define the parameter tauct betat where the vector c and the number t are specified and a and c are linearly independent also suppose that we have uncertain prior information that tau 0 we present a new frequentist 1alpha confidence interval for theta that utilizes this prior information we require this confidence interval to a have endpoints that are continuous functions of the data and b coincide with the standard 1alpha confidence interval when the data strongly contradicts this prior information this interval is optimal in the sense that it has minimum weighted average expected length where the largest weight is given to this expected length when tau0 this minimization leads to an interval that has the following desirable properties this interval has expected length that a is relatively small when the prior information about tau is correct and b has a maximum value that is not too large the following problem will be used to illustrate the application of this new confidence interval consider a 2by 2 factorial experiment with 20 replicates suppose that the parameter of interest theta is a specified simple effect and that we have uncertain prior information that the twofactor interaction is zero our aim is to find a frequentist 095 confidence interval for theta that utilizes this prior information | [['we', 'consider', 'a', 'linear', 'regression', 'model', 'with', 'regression', 'parameter', 'betabeta_1beta_p', 'and', 'independent', 'and', 'identically', 'n0sigma2', 'distributed', 'errors', 'suppose', 'that', 'the', 'parameter', 'of', 'interest', 'is', 'theta', 'at', 'beta', 'where', 'a', 'is', 'a', 'specified', 'vector', 'define', 'the', 'parameter', 'tauct', 'betat', 'where', 'the', 'vector', 'c', 'and', 'the', 'number', 't', 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711.3237 | Supernova Relic Electron Neutrinos and anti-Neutrinos in future
Large-scale Observatories | We investigate the signal from supernova relic neutrinos in future large
scale observatories, such as MEMPHYS (UNO, Hyper-K), LENA and GLACIER, at
present under study. We discuss that complementary information might be gained
from the observation of supernova relic electron anti-neutrinos and neutrinos
using the scattering on protons on one hand, and on nuclei such as oxygen,
carbon or argon on the other hand. When determining the relic neutrino fluxes
we also include, for the first time, the coupling of the neutrino magnetic
moment to magnetic fields within the core-collapse supernova. We present
numerical results on both the relic electron neutrino and anti-neutrino fluxes
and on the number of events for electron neutrinos on carbon, oxygen and argon,
as well as electron anti-neutrinos on protons, for various oscillation
scenarios. The observation of supernova relic neutrinos might provide us with
unique information on core-collapse supernova explosions, on the star formation
history and on neutrino properties, that still remain unknown.
| astro-ph hep-ex hep-ph nucl-th | we investigate the signal from supernova relic neutrinos in future large scale observatories such as memphys uno hyperk lena and glacier at present under study we discuss that complementary information might be gained from the observation of supernova relic electron antineutrinos and neutrinos using the scattering on protons on one hand and on nuclei such as oxygen carbon or argon on the other hand when determining the relic neutrino fluxes we also include for the first time the coupling of the neutrino magnetic moment to magnetic fields within the corecollapse supernova we present numerical results on both the relic electron neutrino and antineutrino fluxes and on the number of events for electron neutrinos on carbon oxygen and argon as well as electron antineutrinos on protons for various oscillation scenarios the observation of supernova relic neutrinos might provide us with unique information on corecollapse supernova explosions on the star formation history and on neutrino properties that still remain unknown | [['we', 'investigate', 'the', 'signal', 'from', 'supernova', 'relic', 'neutrinos', 'in', 'future', 'large', 'scale', 'observatories', 'such', 'as', 'memphys', 'uno', 'hyperk', 'lena', 'and', 'glacier', 'at', 'present', 'under', 'study', 'we', 'discuss', 'that', 'complementary', 'information', 'might', 'be', 'gained', 'from', 'the', 'observation', 'of', 'supernova', 'relic', 'electron', 'antineutrinos', 'and', 'neutrinos', 'using', 'the', 'scattering', 'on', 'protons', 'on', 'one', 'hand', 'and', 'on', 'nuclei', 'such', 'as', 'oxygen', 'carbon', 'or', 'argon', 'on', 'the', 'other', 'hand', 'when', 'determining', 'the', 'relic', 'neutrino', 'fluxes', 'we', 'also', 'include', 'for', 'the', 'first', 'time', 'the', 'coupling', 'of', 'the', 'neutrino', 'magnetic', 'moment', 'to', 'magnetic', 'fields', 'within', 'the', 'corecollapse', 'supernova', 'we', 'present', 'numerical', 'results', 'on', 'both', 'the', 'relic', 'electron', 'neutrino', 'and', 'antineutrino', 'fluxes', 'and', 'on', 'the', 'number', 'of', 'events', 'for', 'electron', 'neutrinos', 'on', 'carbon', 'oxygen', 'and', 'argon', 'as', 'well', 'as', 'electron', 'antineutrinos', 'on', 'protons', 'for', 'various', 'oscillation', 'scenarios', 'the', 'observation', 'of', 'supernova', 'relic', 'neutrinos', 'might', 'provide', 'us', 'with', 'unique', 'information', 'on', 'corecollapse', 'supernova', 'explosions', 'on', 'the', 'star', 'formation', 'history', 'and', 'on', 'neutrino', 'properties', 'that', 'still', 'remain', 'unknown']] | [-0.03433334603434122, 0.20967158376050618, 0.0005985890851132101, 0.1904501573954815, -0.07050314945864337, -0.05925962096227545, 0.07143035949144477, 0.3753334321553194, -0.1897939759059043, -0.32013562134514223, 0.09226535444178831, -0.35090426817135534, 0.023049179952344092, 0.2543387733903843, 0.06768337726634278, -0.04904134061977362, 0.11212902260839529, -0.007510390281316211, -0.06046404800071275, -0.2187878455070755, 0.29511810481825346, 0.163356152171552, 0.2096623005522297, 0.09754164849483125, 0.1208120755102674, -0.05899593729490438, -0.05696311955932599, -0.08789215085414957, -0.10339238584257848, -0.009051106496982254, 0.19117146273023122, 0.15922052504736459, 0.08475118639725673, -0.5239054841236978, -0.23840279280078375, 0.12525308915248873, 0.16619370175272086, 0.08886423654547787, -0.13203624502351932, -0.33599048014730215, 0.010787409819777513, -0.208690976676873, -0.10128688058945574, 0.015014345495360373, -0.06530889162286833, 0.04264933938054439, -0.24388374976483704, 0.08912105989606338, -0.08624469588033241, -0.023128811423254163, -0.09520441025224384, -0.17764501102840458, 0.017511325037324967, 0.03680082891652909, 0.15558163281176476, -0.053846305165487, 0.1750245211068305, -0.15907638369693974, -0.062858379590384, 0.4292122762461629, -0.06812001392245293, -0.048896237447433454, 0.18988143252739328, -0.2115102787384221, -0.16754319540614002, 0.13239821176858077, 0.1969746923143386, 0.06488068065535324, -0.15530858612576975, 0.018240231192815176, -0.08252616631032168, 0.13096390798086702, 0.06986821263503944, 0.05846698314716481, 0.3281774051381346, 0.23614535418698634, 0.1268059643946258, -0.04422243490197719, -0.23334783862810582, 0.059790027466355054, -0.3118919175872697, -0.12914968367232765, -0.1265305585428318, 0.12014995931789185, -0.05988948052696356, -0.12672713916465828, 0.40760716798279106, 0.12390133247805075, 0.133158382670836, -0.06344856793662132, 0.2986739396052789, 0.007244850505921471, 0.011237976359368502, 0.04683517321614148, 0.30579092663630275, 0.17412347000245523, 0.14304037152530177, -0.3009555668605468, 0.08105347170848164, 0.06423363896805935] |
711.3238 | Suppression of molecular decay in ultracold gases without Fermi
statistics | We study inelastic processes for ultracold three-body systems in which only
one interaction is resonant. We have found that the decay rates for weakly
bound molecules due to collisions with other atoms can be suppressed not only
without fermionic statistics but also when bosonic statistics applies. In
addition, we show that at ultracold temperatures three-body recombination
involving a single resonant pair of atoms leads mainly to formation of weakly
bound molecules which, in turn, are stable against decay. These results
indicate that recombination in three-component atomic gases can be used as an
efficient mechanism for molecular formation, allowing the achievement of high
molecular densities.
| physics.atom-ph | we study inelastic processes for ultracold threebody systems in which only one interaction is resonant we have found that the decay rates for weakly bound molecules due to collisions with other atoms can be suppressed not only without fermionic statistics but also when bosonic statistics applies in addition we show that at ultracold temperatures threebody recombination involving a single resonant pair of atoms leads mainly to formation of weakly bound molecules which in turn are stable against decay these results indicate that recombination in threecomponent atomic gases can be used as an efficient mechanism for molecular formation allowing the achievement of high molecular densities | [['we', 'study', 'inelastic', 'processes', 'for', 'ultracold', 'threebody', 'systems', 'in', 'which', 'only', 'one', 'interaction', 'is', 'resonant', 'we', 'have', 'found', 'that', 'the', 'decay', 'rates', 'for', 'weakly', 'bound', 'molecules', 'due', 'to', 'collisions', 'with', 'other', 'atoms', 'can', 'be', 'suppressed', 'not', 'only', 'without', 'fermionic', 'statistics', 'but', 'also', 'when', 'bosonic', 'statistics', 'applies', 'in', 'addition', 'we', 'show', 'that', 'at', 'ultracold', 'temperatures', 'threebody', 'recombination', 'involving', 'a', 'single', 'resonant', 'pair', 'of', 'atoms', 'leads', 'mainly', 'to', 'formation', 'of', 'weakly', 'bound', 'molecules', 'which', 'in', 'turn', 'are', 'stable', 'against', 'decay', 'these', 'results', 'indicate', 'that', 'recombination', 'in', 'threecomponent', 'atomic', 'gases', 'can', 'be', 'used', 'as', 'an', 'efficient', 'mechanism', 'for', 'molecular', 'formation', 'allowing', 'the', 'achievement', 'of', 'high', 'molecular', 'densities']] | [-0.09745064018464361, 0.2573687799372587, -0.040875804964273885, 0.07485803960522529, 0.03776155946588215, -0.19793076536062962, 0.04701641970426023, 0.381353372707963, -0.23220607158369744, -0.26228487878464735, -0.016835712688939217, -0.263571884942044, -0.0583109977753618, 0.20407896753078184, 0.07816337017664829, 0.015283465466032235, 0.08861343403651308, 0.0025635929615908447, 0.002436718865423105, -0.27004650258235274, 0.3071270982842319, 0.06083097739610821, 0.24226352696020442, 0.14360867259809032, -0.005475711243119664, -0.019593744708869893, 0.06289958775204678, -0.06419546573306434, -0.11731913869257718, 0.11204109317427188, 0.267372696768479, -2.578818776573126e-05, 0.1852420625061943, -0.4720453716133936, -0.20313193508459684, 0.12435278499350925, 0.24786904345427713, 0.2143461185758217, -0.08290449487573753, -0.2505264646360257, -0.0037946046885246267, -0.17134240506969106, -0.11609210291555008, -0.14430481819167304, 0.028110403867545895, 0.049481866941697754, -0.30140957035025795, 0.12689542308950108, 0.05120680538507608, 0.011091577847344944, -0.06282384424020375, -0.07810348986934584, -0.0016418466111645103, 0.02686912686784546, -0.016932669536729988, -0.010934819265877685, 0.19517773830851254, -0.15581645789811424, -0.1050798325226284, 0.40613400787697174, -0.1357418128889269, -0.16102985274763063, 0.31148908433253664, -0.16386089387099043, -0.14887914978988612, 0.21763956823493713, 0.17409996192257565, 0.1279031143326742, -0.16980203571396346, 0.034399944581449605, -0.04575610347987654, 0.1784749895652147, 0.1039466085136295, 0.11324464350764174, 0.24650758557254449, 0.13032325200261907, 0.03038180374334423, 0.13553531949750883, -0.10081101162359118, -0.13237019181430626, -0.22046678833878383, -0.13382355493041148, -0.17126057940857628, 0.02683040072546506, 0.032109666163495816, -0.11704837326229048, 0.2692816005795836, 0.10591111719482936, 0.2224203028734057, -0.032864160902905636, 0.26225752650330275, 0.14442742588961174, 0.06743155967874023, 0.03269557941866179, 0.279593229580384, 0.12852664239919528, -0.0020140613823269424, -0.28762277288702676, 0.06899390865762073, 0.023409493410816558] |
711.3239 | A deductive statistical mechanics approach for granular matter | We introduce a deductive statistical mechanics approach for granular
materials which is formally built from few realistic physical assumptions. The
main finding is an universal behavior for the distribution of the density
fluctuations. Such a distribution is the equivalent of the Maxwell-Boltzmann's
distribution in the kinetic theory of gasses. The comparison with a very
extensive set of experimental and simulation data for packings of monosized
spherical grains, reveals a remarkably good quantitative agreement with the
theoretical predictions for the density fluctuations both at the grain level
and at the global system level. Such agreement is robust over a broad range of
packing fractions and it is observed in several distinct systems prepared by
using different methods. The equilibrium distributions are characterized by
only one parameter ($k$) which is a quantity very sensitive to changes in the
structural organization. The thermodynamical equivalent of $k$ and its relation
with the `granular temperature' are also discussed.
| cond-mat.soft | we introduce a deductive statistical mechanics approach for granular materials which is formally built from few realistic physical assumptions the main finding is an universal behavior for the distribution of the density fluctuations such a distribution is the equivalent of the maxwellboltzmanns distribution in the kinetic theory of gasses the comparison with a very extensive set of experimental and simulation data for packings of monosized spherical grains reveals a remarkably good quantitative agreement with the theoretical predictions for the density fluctuations both at the grain level and at the global system level such agreement is robust over a broad range of packing fractions and it is observed in several distinct systems prepared by using different methods the equilibrium distributions are characterized by only one parameter k which is a quantity very sensitive to changes in the structural organization the thermodynamical equivalent of k and its relation with the granular temperature are also discussed | [['we', 'introduce', 'a', 'deductive', 'statistical', 'mechanics', 'approach', 'for', 'granular', 'materials', 'which', 'is', 'formally', 'built', 'from', 'few', 'realistic', 'physical', 'assumptions', 'the', 'main', 'finding', 'is', 'an', 'universal', 'behavior', 'for', 'the', 'distribution', 'of', 'the', 'density', 'fluctuations', 'such', 'a', 'distribution', 'is', 'the', 'equivalent', 'of', 'the', 'maxwellboltzmanns', 'distribution', 'in', 'the', 'kinetic', 'theory', 'of', 'gasses', 'the', 'comparison', 'with', 'a', 'very', 'extensive', 'set', 'of', 'experimental', 'and', 'simulation', 'data', 'for', 'packings', 'of', 'monosized', 'spherical', 'grains', 'reveals', 'a', 'remarkably', 'good', 'quantitative', 'agreement', 'with', 'the', 'theoretical', 'predictions', 'for', 'the', 'density', 'fluctuations', 'both', 'at', 'the', 'grain', 'level', 'and', 'at', 'the', 'global', 'system', 'level', 'such', 'agreement', 'is', 'robust', 'over', 'a', 'broad', 'range', 'of', 'packing', 'fractions', 'and', 'it', 'is', 'observed', 'in', 'several', 'distinct', 'systems', 'prepared', 'by', 'using', 'different', 'methods', 'the', 'equilibrium', 'distributions', 'are', 'characterized', 'by', 'only', 'one', 'parameter', 'k', 'which', 'is', 'a', 'quantity', 'very', 'sensitive', 'to', 'changes', 'in', 'the', 'structural', 'organization', 'the', 'thermodynamical', 'equivalent', 'of', 'k', 'and', 'its', 'relation', 'with', 'the', 'granular', 'temperature', 'are', 'also', 'discussed']] | [-0.10229323188602728, 0.14198891893666818, -0.13554340165022663, 0.06570214757505853, 0.02466379971194424, -0.09987096119929399, 0.02897337742079368, 0.35743265297557963, -0.2477322390768677, -0.33078603112555455, 0.07157742553528423, -0.3013715883318678, -0.09379588358263534, 0.18552133824529224, -0.0019002912576022361, 0.10222043009975766, 0.029164194703825114, 0.021632829902381145, -0.0761228678870554, -0.17992896093882768, 0.30634671070086034, 0.07393440169796936, 0.3061951165605263, 0.03861134825389232, 0.08470849840561737, -0.03542162397206994, 0.010297893865132019, 0.09416429841841914, -0.16929933512093207, 0.11484660271607457, 0.23968241703359558, 0.07123539381121334, 0.2275526072296902, -0.3843349380369641, -0.22725695419725717, 0.06062188984421817, 0.08008461519823054, 0.08629368893544827, -0.0486347835777499, -0.226718895486556, 0.08181047723643899, -0.14528251994756589, -0.12429106982247169, -0.08162024376399227, 0.04116952767607903, 0.042581304606038, -0.2637541130381195, 0.09981121794388807, 0.03097147003465675, 0.10412524397313398, -0.06629041475810625, -0.1310230369279835, -0.026102273945549603, 0.11015679993311335, 0.02289846844321705, 0.005044301030131082, 0.1679296967126184, -0.13996991290906935, -0.027211059310694077, 0.4169828230637665, -0.041112147928767, -0.1650939585708425, 0.22639025593985265, -0.145152310614082, -0.13880573050731695, 0.16754758526803926, 0.10383044445954606, 0.08894642953773176, -0.15559745526039287, 0.0450890536380221, -0.07517784216447342, 0.19128161897319124, 0.009828681506118491, 0.024528323252142353, 0.23486200638504479, 0.2003433031924559, 0.01876414314794697, 0.13651328370523466, -0.061896665590450685, -0.13936518097149306, -0.3033136372771543, -0.12049358609549113, -0.19945959223275023, 0.014715509118487765, -0.11840851607657417, -0.16976671036651456, 0.372628428495342, 0.14510745024094113, 0.21826861762613253, 0.07093868899238787, 0.26569341561729454, 0.10333511192211038, 0.02177070925857774, 0.04911272182576604, 0.2359405672912927, 0.14605960653984526, 0.08929046129081766, -0.19474702201458918, 0.1102489147313846, -0.017953188481777415] |
711.324 | Higher derivative correction to Kaluza-Klein black hole solution | We investigate the attractor mechanism in Kaluza-Klein black hole solution in
the presence of higher derivative terms. In particular, we discuss the
attractor behavior of static black holes by using the effective potential
approach as well as entropy function formalism. We consider different higher
derivative terms with a general coupling to moduli field. For the $R^2$ theory,
we use effective potential approach, looking for solutions which are analytic
near the horizon and show that they exist and enjoy the attractor behavior. The
attractor point is determined by extremization of the modified effective
potential at the horizon. We study the effect of the general higher derivative
corrections of $R^n$ terms. Using the entropy function we define the modified
effective potential and we find the conditions to have the attractor solution.
In particular for a single charged Kaluza-Klein black hole solution we show
that higher derivative correction dresses the naked singularity for an
appropriate coupling, and we can find the attractor solution.
| hep-th | we investigate the attractor mechanism in kaluzaklein black hole solution in the presence of higher derivative terms in particular we discuss the attractor behavior of static black holes by using the effective potential approach as well as entropy function formalism we consider different higher derivative terms with a general coupling to moduli field for the r2 theory we use effective potential approach looking for solutions which are analytic near the horizon and show that they exist and enjoy the attractor behavior the attractor point is determined by extremization of the modified effective potential at the horizon we study the effect of the general higher derivative corrections of rn terms using the entropy function we define the modified effective potential and we find the conditions to have the attractor solution in particular for a single charged kaluzaklein black hole solution we show that higher derivative correction dresses the naked singularity for an appropriate coupling and we can find the attractor solution | [['we', 'investigate', 'the', 'attractor', 'mechanism', 'in', 'kaluzaklein', 'black', 'hole', 'solution', 'in', 'the', 'presence', 'of', 'higher', 'derivative', 'terms', 'in', 'particular', 'we', 'discuss', 'the', 'attractor', 'behavior', 'of', 'static', 'black', 'holes', 'by', 'using', 'the', 'effective', 'potential', 'approach', 'as', 'well', 'as', 'entropy', 'function', 'formalism', 'we', 'consider', 'different', 'higher', 'derivative', 'terms', 'with', 'a', 'general', 'coupling', 'to', 'moduli', 'field', 'for', 'the', 'r2', 'theory', 'we', 'use', 'effective', 'potential', 'approach', 'looking', 'for', 'solutions', 'which', 'are', 'analytic', 'near', 'the', 'horizon', 'and', 'show', 'that', 'they', 'exist', 'and', 'enjoy', 'the', 'attractor', 'behavior', 'the', 'attractor', 'point', 'is', 'determined', 'by', 'extremization', 'of', 'the', 'modified', 'effective', 'potential', 'at', 'the', 'horizon', 'we', 'study', 'the', 'effect', 'of', 'the', 'general', 'higher', 'derivative', 'corrections', 'of', 'rn', 'terms', 'using', 'the', 'entropy', 'function', 'we', 'define', 'the', 'modified', 'effective', 'potential', 'and', 'we', 'find', 'the', 'conditions', 'to', 'have', 'the', 'attractor', 'solution', 'in', 'particular', 'for', 'a', 'single', 'charged', 'kaluzaklein', 'black', 'hole', 'solution', 'we', 'show', 'that', 'higher', 'derivative', 'correction', 'dresses', 'the', 'naked', 'singularity', 'for', 'an', 'appropriate', 'coupling', 'and', 'we', 'can', 'find', 'the', 'attractor', 'solution']] | [-0.14364482647069962, 0.04590985931363321, -0.09513501951587386, 0.14850270973383886, -0.053462572330317926, -0.1350841783103533, 0.0169443280195992, 0.28061403760220854, -0.21276437701308168, -0.27058280183700845, 0.11674462865921668, -0.3167849919234868, -0.18907140590890775, 0.13067328450269997, -0.03353956600985839, 0.049418259534286336, -0.01601443772087805, 0.08283646073250565, -0.08298489916269318, -0.2056736385289696, 0.40067870405327993, 0.04421919563901611, 0.258982624305645, 0.0722201772761764, 0.12518430976488162, -0.009742389862367418, 0.056564350955886765, 0.0720999315060908, -0.1818995960963548, 0.07066724190081004, 0.17054867838596693, 0.09394900844490621, 0.22723262119980064, -0.40878977699903774, -0.24037267357343808, 0.1213549374253489, 0.1646183684526477, 0.16310990854908597, -0.09843294743914158, -0.24857932197628543, 0.10111975063482533, -0.22155135539796902, -0.2139390218013432, -0.1255351559491828, 0.04032211770027061, -0.010207105944573414, -0.25599477340001614, 0.10428704915175331, 0.028535880591516617, -0.033647286234190686, -0.15206536133191548, -0.035242566188389904, -0.0440739929836127, 0.09240023571182973, 0.11417898186846287, 0.04713704244786641, 0.14227349362918176, -0.13281510224333032, -0.09434992333408446, 0.3358222707407549, -0.17767456511646743, -0.24307855956485583, 0.1494090923515614, -0.20098437183914938, -0.08533160679849061, 0.07501988886010622, 0.14568283807020635, 0.2000680087134242, -0.1302307870995719, 0.15832574238738745, 0.052755371479725, 0.10516568750117586, 0.09939126164827031, 0.0737076868514123, 0.2664761818712577, 0.11909846928610932, 0.062063390358525795, 0.18433716272993478, -0.034180155614740214, -0.12776555906166323, -0.34322110514622184, -0.15458469648276604, -0.1218956187571166, 0.06248308848007582, -0.18653226399874256, -0.1735800471447874, 0.3790653581148945, 0.13425514193659183, 0.1753902734955773, 0.049062912050430896, 0.21990911621226134, 0.2065388556846301, 0.0374136334983632, 0.0736016786278924, 0.315990612495807, 0.03382067382553942, 0.11389664218295366, -0.24877021292013524, -0.03940036102721933, 0.14306999820400962] |
711.3241 | Josephson Effect between Conventional and Rashba Superconductors | We study the Josephson effect between a conventional s-wave superconductor
and a non-centrosymmetric superconductor with Rashba spin-orbit coupling.
Rashba spin-orbit coupling affects the Josephson pair tunneling in a
characteristic way. The Josephson coupling can be decomposed into two parts, a
`spin-singlet-like' and a `spin-triplet-like' component. The latter component
can lead to shift of the Josephson phase by \pi relative to the former
coupling. This has important implications on interference effects and may
explain some recent experimental results for the Al/CePt3Si junction.
| cond-mat.supr-con | we study the josephson effect between a conventional swave superconductor and a noncentrosymmetric superconductor with rashba spinorbit coupling rashba spinorbit coupling affects the josephson pair tunneling in a characteristic way the josephson coupling can be decomposed into two parts a spinsingletlike and a spintripletlike component the latter component can lead to shift of the josephson phase by pi relative to the former coupling this has important implications on interference effects and may explain some recent experimental results for the alcept3si junction | [['we', 'study', 'the', 'josephson', 'effect', 'between', 'a', 'conventional', 'swave', 'superconductor', 'and', 'a', 'noncentrosymmetric', 'superconductor', 'with', 'rashba', 'spinorbit', 'coupling', 'rashba', 'spinorbit', 'coupling', 'affects', 'the', 'josephson', 'pair', 'tunneling', 'in', 'a', 'characteristic', 'way', 'the', 'josephson', 'coupling', 'can', 'be', 'decomposed', 'into', 'two', 'parts', 'a', 'spinsingletlike', 'and', 'a', 'spintripletlike', 'component', 'the', 'latter', 'component', 'can', 'lead', 'to', 'shift', 'of', 'the', 'josephson', 'phase', 'by', 'pi', 'relative', 'to', 'the', 'former', 'coupling', 'this', 'has', 'important', 'implications', 'on', 'interference', 'effects', 'and', 'may', 'explain', 'some', 'recent', 'experimental', 'results', 'for', 'the', 'alcept3si', 'junction']] | [-0.3246838443566305, 0.1765326576259656, -0.0574465047639723, 0.034026810382970445, -0.1205216512734739, -0.20264404544678444, 0.058914520318070665, 0.35978423746732563, -0.24228611409377593, -0.25680485217330545, -0.08461527865027818, -0.29913542522356296, -0.11965398263568297, 0.20139903713686344, 0.0486063877813136, -0.034279199197697334, -0.008463359909514204, -0.07268770003261474, -0.0933012750166922, -0.16529071474304566, 0.35692546588297075, -0.06697924429168686, 0.32610065375383085, 0.131496193102346, -0.011289011627340164, -0.05169193760360567, 0.14711466496093914, 0.03780320390629081, -0.10743146340768689, 0.02909508592281968, 0.23016007305481112, -0.16363173492181188, 0.17456113510072613, -0.47054382232137215, -0.1895175636268388, 0.073738832372981, 0.197680824304907, 0.17766362517319906, -0.02010382452340892, -0.3589977339530985, -0.016888295980886772, -0.2070629094273616, -0.041614572036987506, -0.04504051917972855, 0.008393859741492914, -0.05391781999526593, -0.28870563561287826, 0.025728834136269797, 0.06320919052039897, 0.026991995851485394, 0.010784375075346384, -0.09661985780873622, -0.026847733316035606, 0.033066796723944254, 0.07494119792364728, 0.05479781236798049, 0.12128888641913924, -0.11226203890803915, -0.10508103109896183, 0.33625528493370765, -0.13193524041428015, -0.16111882193348345, 0.12625531751949054, -0.11525990145925719, -0.03418609394859045, 0.08421916198224211, 0.1188458040690957, 0.007076561462898285, -0.13680579278689736, 0.09377350592284273, -0.0070736369786736294, 0.15568645987420893, 0.02471928858460906, 0.12392516681351341, 0.32272456675911176, 0.214666672803175, 0.03281852474006323, 0.15466696050358364, -0.14435381810956946, -0.03980432047198216, -0.27499411035424626, -0.15953564384761146, -0.1781643585015375, 0.0871951855205668, -0.04368278275199909, -0.14045328424813655, 0.4231012314558029, 0.16595554957912567, 0.2025723383666422, -0.06406365787514891, 0.3056865437971189, 0.1572055902141027, 0.11826898037002255, -0.06554193976215827, 0.30182938755509287, 0.22915390563997415, 0.07246378978762107, -0.4010009719775273, 0.09297542330862668, -0.001597415960322206] |
711.3242 | On the Centroids of Symmetrized Bregman Divergences | In this paper, we generalize the notions of centroids and barycenters to the
broad class of information-theoretic distortion measures called Bregman
divergences. Bregman divergences are versatile, and unify quadratic geometric
distances with various statistical entropic measures. Because Bregman
divergences are typically asymmetric, we consider both the left-sided and
right-sided centroids and the symmetrized centroids, and prove that all three
are unique. We give closed-form solutions for the sided centroids that are
generalized means, and design a provably fast and efficient approximation
algorithm for the symmetrized centroid based on its exact geometric
characterization that requires solely to walk on the geodesic linking the two
sided centroids. We report on our generic implementation for computing entropic
centers of image clusters and entropic centers of multivariate normals, and
compare our results with former ad-hoc methods.
| cs.CG | in this paper we generalize the notions of centroids and barycenters to the broad class of informationtheoretic distortion measures called bregman divergences bregman divergences are versatile and unify quadratic geometric distances with various statistical entropic measures because bregman divergences are typically asymmetric we consider both the leftsided and rightsided centroids and the symmetrized centroids and prove that all three are unique we give closedform solutions for the sided centroids that are generalized means and design a provably fast and efficient approximation algorithm for the symmetrized centroid based on its exact geometric characterization that requires solely to walk on the geodesic linking the two sided centroids we report on our generic implementation for computing entropic centers of image clusters and entropic centers of multivariate normals and compare our results with former adhoc methods | [['in', 'this', 'paper', 'we', 'generalize', 'the', 'notions', 'of', 'centroids', 'and', 'barycenters', 'to', 'the', 'broad', 'class', 'of', 'informationtheoretic', 'distortion', 'measures', 'called', 'bregman', 'divergences', 'bregman', 'divergences', 'are', 'versatile', 'and', 'unify', 'quadratic', 'geometric', 'distances', 'with', 'various', 'statistical', 'entropic', 'measures', 'because', 'bregman', 'divergences', 'are', 'typically', 'asymmetric', 'we', 'consider', 'both', 'the', 'leftsided', 'and', 'rightsided', 'centroids', 'and', 'the', 'symmetrized', 'centroids', 'and', 'prove', 'that', 'all', 'three', 'are', 'unique', 'we', 'give', 'closedform', 'solutions', 'for', 'the', 'sided', 'centroids', 'that', 'are', 'generalized', 'means', 'and', 'design', 'a', 'provably', 'fast', 'and', 'efficient', 'approximation', 'algorithm', 'for', 'the', 'symmetrized', 'centroid', 'based', 'on', 'its', 'exact', 'geometric', 'characterization', 'that', 'requires', 'solely', 'to', 'walk', 'on', 'the', 'geodesic', 'linking', 'the', 'two', 'sided', 'centroids', 'we', 'report', 'on', 'our', 'generic', 'implementation', 'for', 'computing', 'entropic', 'centers', 'of', 'image', 'clusters', 'and', 'entropic', 'centers', 'of', 'multivariate', 'normals', 'and', 'compare', 'our', 'results', 'with', 'former', 'adhoc', 'methods']] | [-0.08225566209016093, 0.04425458501756304, -0.11350536121365924, 0.13276720534794909, -0.08985537779693858, -0.1647615714605446, 0.02462494639753872, 0.4479540384896664, -0.2815034354359589, -0.2317174794152379, 0.08767152703314257, -0.3133974942787917, -0.1685261458871096, 0.18310301363200063, -0.12534205568601575, 0.08107005687259405, 0.05411243310311076, 0.007950255054641853, -0.1172120771185622, -0.22104875931241127, 0.3355290597361146, 0.026318224714927826, 0.28652022968956525, 0.06722063011715584, 0.1405570473359672, 0.02737392302140396, -0.06987646059309499, 0.05344440354295357, -0.1673168271052308, 0.22993995930345124, 0.20741081648245172, 0.15537545142279036, 0.25509298489090393, -0.3597837072148016, -0.1311312832015877, 0.1476267145410406, 0.14701334180162204, 0.07034949568156718, -0.044415641500646336, -0.2880123629389952, 0.05395708653888891, -0.11149231044603794, -0.07883899647629622, -0.13896594276284854, -0.012644533357216102, 0.08548155709198027, -0.2368236659729684, 0.11602587457111274, 0.06299936538562179, 0.04516523272843298, -0.06814038265711685, -0.1546139186107074, 0.06267326969210638, 0.06147026008517115, 0.008846839088205756, -0.01892422257647426, 0.12672771251351206, -0.0324928590650388, -0.15558159644503824, 0.33405742874884076, -0.003357000790084853, -0.23123384532730348, 0.1751721030344594, -0.08757043313799483, -0.16160154236819257, 0.06371370788705959, 0.1583434605951576, 0.15802310516521562, -0.18900946629318324, 0.0632050944008039, -0.01776901614379533, 0.05018268618732691, 0.08787600940735446, 0.07811859316037346, 0.14126984189109257, 0.003138335968480643, 0.14568368483014638, 0.20933362171380201, -0.1155381446482021, -0.17321620646257405, -0.31657637179490516, -0.1504556622548438, -0.1847497661903176, -0.03666444694020108, -0.18922008777371957, -0.22568179569630462, 0.3617712300708235, 0.14159345158347578, 0.19776016605707505, 0.1571568347845283, 0.32196666123909934, 0.08379717722577466, 0.05174120301627695, 0.12149359739322046, 0.23397395295570744, 0.1265665318174852, -0.007741943534435422, -0.17405740462180058, 0.0537944594503973, 0.14655523211695254] |
711.3243 | A quasi-local mass for 2-spheres with negative Gauss curvature | We extend our previous definition of quasi-local mass to 2-spheres whose
Gauss curvature is negative and prove its positivity.
| gr-qc astro-ph math.DG | we extend our previous definition of quasilocal mass to 2spheres whose gauss curvature is negative and prove its positivity | [['we', 'extend', 'our', 'previous', 'definition', 'of', 'quasilocal', 'mass', 'to', '2spheres', 'whose', 'gauss', 'curvature', 'is', 'negative', 'and', 'prove', 'its', 'positivity']] | [-0.19936159331547587, 0.07400223421619127, -0.09536426524190526, 0.06182618697149385, -0.172710004605745, -0.08631913479123461, -0.022848061794464133, 0.3263266123831272, -0.21298500949418858, -0.287802375166824, 0.05097787908131355, -0.27046497617112963, -0.11381061649636219, 0.12278900579794456, -0.18216863784350848, 0.06922487394675907, 0.0020757611644895454, 0.10871371793511667, -0.1408693950231138, -0.3255893528755558, 0.4244658841114295, 0.019860667813765377, 0.14643267901173154, 0.23982691843258708, 0.1521666230584838, -0.0901033578342513, -0.07081856152140781, 0.003972209990024567, -0.23458814065394873, 0.15341104782725634, 0.10446464148423586, 0.10982361897875212, 0.2075008620557032, -0.29922471617005375, -0.25717152473761845, 0.17951911962346026, 0.0810515993507579, 0.021340602273611647, -0.007787076964680301, -0.28603723017792954, 0.11461238288565685, -0.13249383869237805, -0.20895082224160433, -0.1335474532587748, 0.010856965997893559, -0.021475012365140413, -0.14958134460213937, 0.1677014979680902, 0.17495676247697128, 0.004321518403134848, -0.12929239965313555, -0.1401454867108872, -0.12503010949953214, 0.04379671557169212, 0.08948251422445633, 0.039351282935393486, 0.15232869945956687, 0.012617438933566996, -0.06535408988987144, 0.26464292799171646, -0.042175808137184696, -0.3035608951590563, 0.07335621530288144, -0.16063803518007166, -0.15484821149393133, 0.0658895008658108, 0.07964256043104749, 0.2408177842091965, -0.0846596994976464, 0.1446170200023947, -0.0675145390100385, 0.07442735625725043, 0.18463946413248777, -0.015089332861335654, 0.21780657101618617, -0.017420000739787753, 0.19365374349351777, 0.16864441717533687, 0.02610156273371295, -0.12663084925397447, -0.3817397473674071, -0.25125254376938466, -0.2075551738962531, 0.21765346727088877, -0.1252422556028346, -0.23808052371207036, 0.36982880062178564, 0.10001154302766449, 0.2237954445575413, 0.2625057150756842, 0.2866712924289076, 0.09271281588160873, 0.09363875623890444, 0.08969244240832172, 0.26807343219651986, 0.28537682169362116, 0.08609971492306183, -0.15673205043238245, -0.08970864046070921, 0.16779100948846654] |
711.3244 | Doppler-free, Multi-wavelength Acousto-optic deflector for two-photon
addressing arrays of Rb atoms in a Quantum Information Processor | We demonstrate a dual wavelength acousto-optic deflector (AOD) designed to
deflect two wavelengths to the same angles by driving with two RF frequencies.
The AOD is designed as a beam scanner to address two-photon transitions in a
two-dimensional array of trapped neutral Rb atoms in a quantum computer.
Momentum space is used to design AODs that have the same diffraction angles for
two wavelengths (780 nm and 480 nm) and have non-overlapping Bragg-matched
frequency response at these wavelengths, so that there will be no crosstalk
when proportional RF frequencies are applied to diffract the two wavelengths.
The appropriate crystal orientation, crystal shape, transducer size, and
transducer height are determined for an AOD made with a Tellurium dioxide
crystal (TeO2). The designed and fabricated AOD has more than 100 resolvable
spots, widely separated bandshapes for the two wavelengths within an overall
octave bandwidth, spatially overlapping diffraction angles for both wavelengths
(780 nm and 480 nm), and a 4 usec or less access time. Cascaded AODs in which
the first device upshifts and the second downshifts allow Doppler-free scanning
as required for addressing the narrow atomic resonance without detuning. We
experimentally show the diffraction-limited Doppler-free scanning performance
and spatial resolution of the designed AOD.
| quant-ph | we demonstrate a dual wavelength acoustooptic deflector aod designed to deflect two wavelengths to the same angles by driving with two rf frequencies the aod is designed as a beam scanner to address twophoton transitions in a twodimensional array of trapped neutral rb atoms in a quantum computer momentum space is used to design aods that have the same diffraction angles for two wavelengths 780 nm and 480 nm and have nonoverlapping braggmatched frequency response at these wavelengths so that there will be no crosstalk when proportional rf frequencies are applied to diffract the two wavelengths the appropriate crystal orientation crystal shape transducer size and transducer height are determined for an aod made with a tellurium dioxide crystal teo2 the designed and fabricated aod has more than 100 resolvable spots widely separated bandshapes for the two wavelengths within an overall octave bandwidth spatially overlapping diffraction angles for both wavelengths 780 nm and 480 nm and a 4 usec or less access time cascaded aods in which the first device upshifts and the second downshifts allow dopplerfree scanning as required for addressing the narrow atomic resonance without detuning we experimentally show the diffractionlimited dopplerfree scanning performance and spatial resolution of the designed aod | [['we', 'demonstrate', 'a', 'dual', 'wavelength', 'acoustooptic', 'deflector', 'aod', 'designed', 'to', 'deflect', 'two', 'wavelengths', 'to', 'the', 'same', 'angles', 'by', 'driving', 'with', 'two', 'rf', 'frequencies', 'the', 'aod', 'is', 'designed', 'as', 'a', 'beam', 'scanner', 'to', 'address', 'twophoton', 'transitions', 'in', 'a', 'twodimensional', 'array', 'of', 'trapped', 'neutral', 'rb', 'atoms', 'in', 'a', 'quantum', 'computer', 'momentum', 'space', 'is', 'used', 'to', 'design', 'aods', 'that', 'have', 'the', 'same', 'diffraction', 'angles', 'for', 'two', 'wavelengths', '780', 'nm', 'and', '480', 'nm', 'and', 'have', 'nonoverlapping', 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711.3245 | Singlet-Triplet Physics and Shell Filling in Carbon Nanotube Double
Quantum Dots | An artifcial two-atomic molecule, also called a double quantum dot (DQD), is
an ideal system for exploring few electron physics. Spin-entanglement between
just two electrons can be explored in such systems where singlet and triplet
states are accessible. These two spin-states can be regarded as the two states
in a quantum two-state system, a so-called singlet-triplet qubit. A very
attractive material for realizing spin based qubits is the carbon nanotube
(CNT), because it is expected to have a very long spin coherence time. Here we
show the existence of a gate-tunable singlet-triplet qubit in a CNT DQD. We
show that the CNT DQD has clear shell structures of both four and eight
electrons, with the singlet-triplet qubit present in the four-electron shells.
We furthermore observe inelastic cotunneling via the singlet and triplet
states, which we use to probe the splitting between singlet and triplet, in
good agreement with theory.
| cond-mat.mes-hall | an artifcial twoatomic molecule also called a double quantum dot dqd is an ideal system for exploring few electron physics spinentanglement between just two electrons can be explored in such systems where singlet and triplet states are accessible these two spinstates can be regarded as the two states in a quantum twostate system a socalled singlettriplet qubit a very attractive material for realizing spin based qubits is the carbon nanotube cnt because it is expected to have a very long spin coherence time here we show the existence of a gatetunable singlettriplet qubit in a cnt dqd we show that the cnt dqd has clear shell structures of both four and eight electrons with the singlettriplet qubit present in the fourelectron shells we furthermore observe inelastic cotunneling via the singlet and triplet states which we use to probe the splitting between singlet and triplet in good agreement with theory | [['an', 'artifcial', 'twoatomic', 'molecule', 'also', 'called', 'a', 'double', 'quantum', 'dot', 'dqd', 'is', 'an', 'ideal', 'system', 'for', 'exploring', 'few', 'electron', 'physics', 'spinentanglement', 'between', 'just', 'two', 'electrons', 'can', 'be', 'explored', 'in', 'such', 'systems', 'where', 'singlet', 'and', 'triplet', 'states', 'are', 'accessible', 'these', 'two', 'spinstates', 'can', 'be', 'regarded', 'as', 'the', 'two', 'states', 'in', 'a', 'quantum', 'twostate', 'system', 'a', 'socalled', 'singlettriplet', 'qubit', 'a', 'very', 'attractive', 'material', 'for', 'realizing', 'spin', 'based', 'qubits', 'is', 'the', 'carbon', 'nanotube', 'cnt', 'because', 'it', 'is', 'expected', 'to', 'have', 'a', 'very', 'long', 'spin', 'coherence', 'time', 'here', 'we', 'show', 'the', 'existence', 'of', 'a', 'gatetunable', 'singlettriplet', 'qubit', 'in', 'a', 'cnt', 'dqd', 'we', 'show', 'that', 'the', 'cnt', 'dqd', 'has', 'clear', 'shell', 'structures', 'of', 'both', 'four', 'and', 'eight', 'electrons', 'with', 'the', 'singlettriplet', 'qubit', 'present', 'in', 'the', 'fourelectron', 'shells', 'we', 'furthermore', 'observe', 'inelastic', 'cotunneling', 'via', 'the', 'singlet', 'and', 'triplet', 'states', 'which', 'we', 'use', 'to', 'probe', 'the', 'splitting', 'between', 'singlet', 'and', 'triplet', 'in', 'good', 'agreement', 'with', 'theory']] | [-0.17240241949677768, 0.2273902791169794, -0.01755542266213854, 0.08214967343378062, 0.04975626222326752, -0.2594948550592483, 0.051467695871943095, 0.43526048493265307, -0.23244612000006776, -0.2770919275920113, -0.025824905048912054, -0.27119143159931913, -0.08361162014005569, 0.194732238779207, 0.0569369183203218, 0.002140583495465701, 0.07807180926128722, -0.005594060928154512, -0.060639619020176366, -0.18433913343582903, 0.2888463827056323, -0.006742971410174798, 0.2618973244687905, 0.10790098208509036, 0.08652858804808242, -0.008946765057942611, 0.17161237204684907, -0.038708090854046126, -0.09084152333594073, 0.07877720278983111, 0.2866755694882622, -0.02713229339069768, 0.2130754187628127, -0.4795797104328471, -0.1453170588040012, 0.05839325136336304, 0.16906864044487777, 0.20357948222163214, -0.04891471342867687, -0.2959544241065847, 0.007934856737945103, -0.2146401091184992, -0.061225696688755445, -0.09995551788929424, -0.017334038097936436, -0.03811721590616359, -0.2468027610756807, 0.042487128538309264, 0.014148070583207495, 0.0032013830495998263, -0.013119648331416859, -0.071459470352708, -0.035195092720623385, 0.07073258900008596, -0.022301874102418306, -0.006003034513618722, 0.17480216981005547, -0.10816546344907717, -0.1643805703048238, 0.32197555885868984, -0.10435992966549809, -0.14822976553075065, 0.1700052915675403, -0.14815222353818233, -0.08306820523431337, 0.08109049152757898, 0.02891746321271155, 0.10792715475431974, -0.1717185466144009, 0.06494130052769895, -0.04405583794097472, 0.18863864693065618, 0.026528304608401235, 0.14873602069423483, 0.2701264940852287, 0.202667560043976, 0.07601860075745256, 0.14677378105393443, -0.16018318495988196, -0.13071900355510863, -0.2592344304277943, -0.2360309850074501, -0.21367255667062013, 0.12651691251690655, 0.003292012924169059, -0.1485281079044978, 0.41389293231120045, 0.0835614415993539, 0.19162109570777755, -0.07640191682711268, 0.2321718315525143, 0.12559209199741034, 0.07126791105486903, 0.004361080599561234, 0.26859514223999226, 0.21121082999962287, 0.02313459372763591, -0.31282016838394455, 0.013124116382330357, -0.045882729938466274] |
711.3246 | Sequence dependence of DNA translocation through a nanopore | We investigate the dynamics of DNA translocation through a nanopore using 2D
Langevin dynamics simulations, focusing on the dependence of the translocation
dynamics on the details of DNA sequences. The DNA molecules studied in this
work are built from two types of bases $A$ and $C$, which has been shown
previously to have different interactions with the pore. We study DNA with
repeating blocks $A_nC_n$ for various values of $n$, and find that the
translocation time depends strongly on the {\em block length} $2n$ as well as
on the {\em orientation} of which base entering the pore first. Thus, we
demonstrate that the measurement of translocation dynamics of DNA through
nanopore can yield detailed information about its structure. We have also found
that the periodicity of the block sequences are contained in the periodicity of
the residence time of the individual nucleotides inside the pore.
| cond-mat.soft cond-mat.stat-mech | we investigate the dynamics of dna translocation through a nanopore using 2d langevin dynamics simulations focusing on the dependence of the translocation dynamics on the details of dna sequences the dna molecules studied in this work are built from two types of bases a and c which has been shown previously to have different interactions with the pore we study dna with repeating blocks a_nc_n for various values of n and find that the translocation time depends strongly on the em block length 2n as well as on the em orientation of which base entering the pore first thus we demonstrate that the measurement of translocation dynamics of dna through nanopore can yield detailed information about its structure we have also found that the periodicity of the block sequences are contained in the periodicity of the residence time of the individual nucleotides inside the pore | [['we', 'investigate', 'the', 'dynamics', 'of', 'dna', 'translocation', 'through', 'a', 'nanopore', 'using', '2d', 'langevin', 'dynamics', 'simulations', 'focusing', 'on', 'the', 'dependence', 'of', 'the', 'translocation', 'dynamics', 'on', 'the', 'details', 'of', 'dna', 'sequences', 'the', 'dna', 'molecules', 'studied', 'in', 'this', 'work', 'are', 'built', 'from', 'two', 'types', 'of', 'bases', 'a', 'and', 'c', 'which', 'has', 'been', 'shown', 'previously', 'to', 'have', 'different', 'interactions', 'with', 'the', 'pore', 'we', 'study', 'dna', 'with', 'repeating', 'blocks', 'a_nc_n', 'for', 'various', 'values', 'of', 'n', 'and', 'find', 'that', 'the', 'translocation', 'time', 'depends', 'strongly', 'on', 'the', 'em', 'block', 'length', '2n', 'as', 'well', 'as', 'on', 'the', 'em', 'orientation', 'of', 'which', 'base', 'entering', 'the', 'pore', 'first', 'thus', 'we', 'demonstrate', 'that', 'the', 'measurement', 'of', 'translocation', 'dynamics', 'of', 'dna', 'through', 'nanopore', 'can', 'yield', 'detailed', 'information', 'about', 'its', 'structure', 'we', 'have', 'also', 'found', 'that', 'the', 'periodicity', 'of', 'the', 'block', 'sequences', 'are', 'contained', 'in', 'the', 'periodicity', 'of', 'the', 'residence', 'time', 'of', 'the', 'individual', 'nucleotides', 'inside', 'the', 'pore']] | [-0.1461651885466482, 0.1474092485328179, -0.06846366392831744, -0.005352282302434712, 0.009918553124104315, -0.10226958071830773, 0.01572638319986355, 0.4124720607780748, -0.2904463470751782, -0.27083161633668673, 0.06973302512293837, -0.2278971299658426, -0.1725210496628683, 0.16924930912015648, 0.028700977214612067, 0.028240696719977778, 0.09140244637577173, 0.06301450819268616, -0.0048288637788371285, -0.21742323859588294, 0.24682264377285415, 0.07286702540133977, 0.2566909770782028, 0.06200228412894325, 0.09724505515057696, 0.016698346838691376, -0.008801361507115265, 0.025143638563652832, -0.20891516104888475, 0.12197322880577606, 0.15153037254963742, 0.08731796444529512, 0.2273291185669627, -0.49386812482650083, -0.2236682766273993, 0.04539577437551796, 0.20289425572749073, 0.15315386949643855, -0.02336127820955072, -0.2511225353033903, 0.07472520889122178, -0.09702133755167273, -0.04629566512610634, -0.023853729957611196, 0.05595223204646674, 0.13448867564609499, -0.1943369784967217, 0.068417128335366, 0.039294952205738004, 0.08264430776600623, -0.016450633373299044, -0.11851068893318167, -0.02281116851938552, 0.19997622165263035, 0.08474993488764287, -0.015265595820286157, 0.23450156583890525, -0.08585590657538786, -0.10380928272691865, 0.36169011960737407, -0.03657052888754859, -0.22101364718400873, 0.16800961362120384, -0.17355640492557237, -0.13217051618590225, 0.15254505751848532, 0.11975644905275355, 0.11798182226549317, -0.16217980396767315, 0.06582781011901614, -0.04310176026127818, 0.2187784612372828, 0.13266949875590703, 0.02752026510360237, 0.19333933965794536, 0.2183697703456144, 0.010948608742587062, 0.15432899346827375, -0.1312561181257479, -0.14713716481896377, -0.25020152343333596, -0.18423095906877685, -0.20044974244147953, 0.062782180256262, -0.08021096473849967, -0.18938848566843566, 0.4226332815014757, 0.09756786381088507, 0.21613663710175185, 0.06402511306320473, 0.2103110448386158, 0.007291342945083872, 0.08831902227231897, -0.009658263326855376, 0.1675819206995786, 0.10394877272079207, 0.07840156403835863, -0.2907043559292409, 0.11136289348683527, 0.043134909920303874] |
711.3247 | A Distributed Dynamic Frequency Allocation Algorithm | We consider a network model where the nodes are grouped into a number of
clusters and propose a distributed dynamic frequency allocation algorithm that
achieves performance close to that of a centralized optimal algorithm. Each
cluster chooses its transmission frequency band based on its knowledge of the
interference that it experiences. The convergence of the proposed distributed
algorithm to a sub-optimal frequency allocation pattern is proved. For some
specific cases of spatial distributions of the clusters in the network,
asymptotic bounds on the performance of the algorithm are derived and
comparisons to the performance of optimal centralized solutions are made. These
analytic results and additional simulation studies verify performance close to
that of an optimum centralized frequency allocation algorithm. It is
demonstrated that the algorithm achieves about 90% of the Shannon capacities
corresponding to the optimum/near-optimum centralized frequency band
assignments. Furthermore, we consider the scenario where each cluster can be in
active or inactive mode according to a two-state Markov model. We derive
conditions to guarantee finite steady state variance for the output of the
algorithm using stochastic analysis. Further simulation studies confirm the
results of stochastic modeling and the performance of the algorithm in the
time-varying setup.
| cs.NI | we consider a network model where the nodes are grouped into a number of clusters and propose a distributed dynamic frequency allocation algorithm that achieves performance close to that of a centralized optimal algorithm each cluster chooses its transmission frequency band based on its knowledge of the interference that it experiences the convergence of the proposed distributed algorithm to a suboptimal frequency allocation pattern is proved for some specific cases of spatial distributions of the clusters in the network asymptotic bounds on the performance of the algorithm are derived and comparisons to the performance of optimal centralized solutions are made these analytic results and additional simulation studies verify performance close to that of an optimum centralized frequency allocation algorithm it is demonstrated that the algorithm achieves about 90 of the shannon capacities corresponding to the optimumnearoptimum centralized frequency band assignments furthermore we consider the scenario where each cluster can be in active or inactive mode according to a twostate markov model we derive conditions to guarantee finite steady state variance for the output of the algorithm using stochastic analysis further simulation studies confirm the results of stochastic modeling and the performance of the algorithm in the timevarying setup | [['we', 'consider', 'a', 'network', 'model', 'where', 'the', 'nodes', 'are', 'grouped', 'into', 'a', 'number', 'of', 'clusters', 'and', 'propose', 'a', 'distributed', 'dynamic', 'frequency', 'allocation', 'algorithm', 'that', 'achieves', 'performance', 'close', 'to', 'that', 'of', 'a', 'centralized', 'optimal', 'algorithm', 'each', 'cluster', 'chooses', 'its', 'transmission', 'frequency', 'band', 'based', 'on', 'its', 'knowledge', 'of', 'the', 'interference', 'that', 'it', 'experiences', 'the', 'convergence', 'of', 'the', 'proposed', 'distributed', 'algorithm', 'to', 'a', 'suboptimal', 'frequency', 'allocation', 'pattern', 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711.3248 | A Note on a Standard Embedding on Half-Flat Manifolds | It is argued that the ten dimensional solution that corresponds to the
compactification of $E_8 \times E_8$ heterotic string theory on a half-flat
manifold is the product space-time $R^{1,2} \times Z_7$ where $Z_7$ is a
generalized cylinder with $G_2$ riemannian holonomy. Standard embedding on
$Z_7$ then implies an embedding on the half-flat manifold which involves the
torsionful connection rather than the Levi-Civita connection. This leads to the
breakdown of $E_8 \times E_8$ to $E_6 \times E_8$, as in the case of the
standard embedding on Calabi-Yau manifolds, which agrees with the result
derived recently by Gurrieri, Lukas and Micu (arXiv:0709.1932) using a
different approach. Green-Schwarz anomaly cancellation is then implemented via
the torsionful connection on half-flat manifolds.
| hep-th hep-ph | it is argued that the ten dimensional solution that corresponds to the compactification of e_8 times e_8 heterotic string theory on a halfflat manifold is the product spacetime r12 times z_7 where z_7 is a generalized cylinder with g_2 riemannian holonomy standard embedding on z_7 then implies an embedding on the halfflat manifold which involves the torsionful connection rather than the levicivita connection this leads to the breakdown of e_8 times e_8 to e_6 times e_8 as in the case of the standard embedding on calabiyau manifolds which agrees with the result derived recently by gurrieri lukas and micu arxiv07091932 using a different approach greenschwarz anomaly cancellation is then implemented via the torsionful connection on halfflat manifolds | [['it', 'is', 'argued', 'that', 'the', 'ten', 'dimensional', 'solution', 'that', 'corresponds', 'to', 'the', 'compactification', 'of', 'e_8', 'times', 'e_8', 'heterotic', 'string', 'theory', 'on', 'a', 'halfflat', 'manifold', 'is', 'the', 'product', 'spacetime', 'r12', 'times', 'z_7', 'where', 'z_7', 'is', 'a', 'generalized', 'cylinder', 'with', 'g_2', 'riemannian', 'holonomy', 'standard', 'embedding', 'on', 'z_7', 'then', 'implies', 'an', 'embedding', 'on', 'the', 'halfflat', 'manifold', 'which', 'involves', 'the', 'torsionful', 'connection', 'rather', 'than', 'the', 'levicivita', 'connection', 'this', 'leads', 'to', 'the', 'breakdown', 'of', 'e_8', 'times', 'e_8', 'to', 'e_6', 'times', 'e_8', 'as', 'in', 'the', 'case', 'of', 'the', 'standard', 'embedding', 'on', 'calabiyau', 'manifolds', 'which', 'agrees', 'with', 'the', 'result', 'derived', 'recently', 'by', 'gurrieri', 'lukas', 'and', 'micu', 'arxiv07091932', 'using', 'a', 'different', 'approach', 'greenschwarz', 'anomaly', 'cancellation', 'is', 'then', 'implemented', 'via', 'the', 'torsionful', 'connection', 'on', 'halfflat', 'manifolds']] | [-0.1662801919221554, 0.06675513767062828, -0.03622597977063497, 0.13499420422392533, -0.12523645541792655, -0.1938894786629016, -0.04225164912641048, 0.32967650314550034, -0.16488783426744782, -0.21826378327956342, 0.14856383461889852, -0.2461684560160274, -0.1752721877201744, 0.1445201821665725, -0.1411202664203618, -0.07984410755579238, 0.011311962915098537, 0.13138328340390454, -0.17826976764709285, -0.2934697958883708, 0.4126713308505714, 0.008909036659473634, 0.31954684148988, 0.029967068669002797, 0.155617728230098, -0.042104632800202005, 0.040078904435200534, -0.05191041673331157, -0.12145074309399048, 0.09870899283610608, 0.2018202101872505, 0.04885466325137278, 0.039548087751735815, -0.4284194160981671, -0.19308954249743535, 0.11803859510944913, 0.18371672496280592, 0.04922208210007976, 0.0041710817609387245, -0.3209084257787175, 0.08035140321590006, -0.15671761299928894, -0.12866073704689093, -0.040300794561272085, 0.01657308798445308, -0.14888536211751077, -0.21389936963501183, 0.056230108365011605, 0.02649362942446833, 0.01949064865829828, -0.018733984507296398, -0.08201228744633819, -0.06394165461963934, 0.00016284915416137031, 0.13861964521322237, 0.14282021119218805, 0.10924172880856887, -0.07520687763418486, -0.1852925181388855, 0.3948898859160102, -0.053145202021139835, -0.24191981518600622, 0.101984746037456, -0.05308858367169033, -0.18066124289660998, 0.11115738739785941, 0.04939086390077137, 0.1400322981401468, -0.08401502950367538, 0.23906613697611687, -0.09119862607153861, 0.07142170324273732, 0.11948942647760977, -0.05070918807354958, 0.13998334594880757, 0.17098158128640573, 0.09308628792995992, 0.04666642046371556, -0.0005171859414195237, -0.12256312143948415, -0.37627929850764896, -0.1501495487107288, -0.11468128663406747, 0.2689275887430362, -0.19890184722342225, -0.14320795961210261, 0.37364838970420156, -0.024878493231296053, 0.22485159267873867, 0.09713333804848726, 0.18113729553702085, 0.03415241841044601, 0.12620688077548275, 0.04769422427558786, 0.17832379237465237, 0.20410045720636844, 0.01198416642152512, -0.15963299132620348, -0.1629510604796688, 0.26227313776541017] |
711.3249 | The Effect of a Random Drift on Mixed and Pure Strategies in the
Snowdrift Game | The replicator dynamics of players choosing either mixed or pure strategies
are usually regarded as equivalent, as long as strategies are played with
identical frequencies. In this paper we show that a population of pure
strategists can be invaded by mixed strategists in any two-player game with
equilibrium coexistence upon the addition of an arbitrarily small amount of
noise in the replication process.
| q-bio.PE | the replicator dynamics of players choosing either mixed or pure strategies are usually regarded as equivalent as long as strategies are played with identical frequencies in this paper we show that a population of pure strategists can be invaded by mixed strategists in any twoplayer game with equilibrium coexistence upon the addition of an arbitrarily small amount of noise in the replication process | [['the', 'replicator', 'dynamics', 'of', 'players', 'choosing', 'either', 'mixed', 'or', 'pure', 'strategies', 'are', 'usually', 'regarded', 'as', 'equivalent', 'as', 'long', 'as', 'strategies', 'are', 'played', 'with', 'identical', 'frequencies', 'in', 'this', 'paper', 'we', 'show', 'that', 'a', 'population', 'of', 'pure', 'strategists', 'can', 'be', 'invaded', 'by', 'mixed', 'strategists', 'in', 'any', 'twoplayer', 'game', 'with', 'equilibrium', 'coexistence', 'upon', 'the', 'addition', 'of', 'an', 'arbitrarily', 'small', 'amount', 'of', 'noise', 'in', 'the', 'replication', 'process']] | [-0.09341006717156797, 0.19162276972086162, -0.11529431728616593, 0.05399445123109058, 0.02983816467329032, -0.19219927231795966, 0.08396152920821416, 0.3832260273870022, -0.28097378333941814, -0.2959682290471854, 0.13916230382996478, -0.21401152777529897, -0.13970646414802307, 0.07821618232299529, -0.13521598326134687, -0.03145324014725962, 0.05871511889909882, 0.023971035943499634, 0.05885161391814195, -0.25216834381636644, 0.35394871246720117, 0.02732078828627155, 0.23781099001921358, -0.0704018039821041, 0.06830339769404085, -0.0010200876313897352, 0.026474606290104844, 0.10908335096956719, -0.07637848770525399, 0.029158605720906977, 0.3087373152966537, 0.12170737316565854, 0.33839894198472537, -0.452734716000065, -0.18826845643066226, 0.18980694396628273, 0.15771534656440572, 0.1561495346859807, -0.012066410580975196, -0.25370042197524556, 0.04486527762168811, -0.19444194405029216, -0.1205982264382617, -0.04373319931919613, -0.02826426541876225, 0.05638952122720343, -0.2962802204835628, 0.03093191623384695, 0.06441449977102734, 0.06873988834697575, -0.04859973402279946, -0.1596868826845099, -0.0450128008212362, 0.18162370497907793, 0.019406786587159518, -0.039044452923542215, 0.11486665030113524, -0.14027182056590737, -0.20022371860723648, 0.360981793601125, -0.12223399981915478, -0.21384924478710643, 0.18149088835898078, -0.06338485288951132, -0.08531146954804186, 0.11688850760932952, 0.1218492070819059, 0.15335022229405623, -0.14636301638055887, 0.021242199539546928, -0.050061064033162975, 0.1890676426830598, 0.09909525288948937, 0.08141552983591008, 0.20478780280857806, 0.17542261050807106, 0.10639454745909288, 0.16206968003433078, 0.024844997392464725, -0.21601001687702678, -0.2503145077591023, -0.10967509331743396, -0.16642349858265665, 0.09575701616926208, -0.0752311662164709, -0.17038318004074787, 0.2795426692695372, 0.062297977573637454, 0.13210098778030702, 0.046277783988487156, 0.24850544286152673, 0.09372576208792567, 0.009148119377814942, 0.03710728657564947, 0.1983602453791906, 0.06204700872435102, 0.08204229207827694, -0.2379769067915659, 0.1722519024467421, -0.021251490751710084] |
711.325 | Improved Fully Dynamic Reachability Algorithm for Directed Graph | We propose a fully dynamic algorithm for maintaining reachability information
in directed graphs. The proposed deterministic dynamic algorithm has an update
time of $O((ins*n^{2}) + (del * (m+n*log(n))))$ where $m$ is the current number
of edges, $n$ is the number of vertices in the graph, $ins$ is the number of
edge insertions and $del$ is the number of edge deletions. Each query can be
answered in O(1) time after each update. The proposed algorithm combines
existing fully dynamic reachability algorithm with well known witness counting
technique to improve efficiency of maintaining reachability information when
edges are deleted. The proposed algorithm improves by a factor of
$O(\frac{n^2}{m+n*log(n)})$ for edge deletion over the best existing fully
dynamic algorithm for maintaining reachability information.
| cs.DS | we propose a fully dynamic algorithm for maintaining reachability information in directed graphs the proposed deterministic dynamic algorithm has an update time of oinsn2 del mnlogn where m is the current number of edges n is the number of vertices in the graph ins is the number of edge insertions and del is the number of edge deletions each query can be answered in o1 time after each update the proposed algorithm combines existing fully dynamic reachability algorithm with well known witness counting technique to improve efficiency of maintaining reachability information when edges are deleted the proposed algorithm improves by a factor of ofracn2mnlogn for edge deletion over the best existing fully dynamic algorithm for maintaining reachability information | [['we', 'propose', 'a', 'fully', 'dynamic', 'algorithm', 'for', 'maintaining', 'reachability', 'information', 'in', 'directed', 'graphs', 'the', 'proposed', 'deterministic', 'dynamic', 'algorithm', 'has', 'an', 'update', 'time', 'of', 'oinsn2', 'del', 'mnlogn', 'where', 'm', 'is', 'the', 'current', 'number', 'of', 'edges', 'n', 'is', 'the', 'number', 'of', 'vertices', 'in', 'the', 'graph', 'ins', 'is', 'the', 'number', 'of', 'edge', 'insertions', 'and', 'del', 'is', 'the', 'number', 'of', 'edge', 'deletions', 'each', 'query', 'can', 'be', 'answered', 'in', 'o1', 'time', 'after', 'each', 'update', 'the', 'proposed', 'algorithm', 'combines', 'existing', 'fully', 'dynamic', 'reachability', 'algorithm', 'with', 'well', 'known', 'witness', 'counting', 'technique', 'to', 'improve', 'efficiency', 'of', 'maintaining', 'reachability', 'information', 'when', 'edges', 'are', 'deleted', 'the', 'proposed', 'algorithm', 'improves', 'by', 'a', 'factor', 'of', 'ofracn2mnlogn', 'for', 'edge', 'deletion', 'over', 'the', 'best', 'existing', 'fully', 'dynamic', 'algorithm', 'for', 'maintaining', 'reachability', 'information']] | [-0.17920686851215104, 0.05541000859925787, -0.014909949906818244, 0.00199307216655301, -0.09602286294507592, -0.20234855984783043, 0.11473919945242612, 0.3994202938740668, -0.29917192468824594, -0.42296602342115797, 0.07005594374065328, -0.27789180557365, -0.12329411780583145, 0.09662718176639275, -0.12298156492533567, 0.1628836663034947, 0.10447257456734128, 0.10295713076610928, 0.03422761667195869, -0.3310050933715462, 0.22210448333669616, 0.04989280272680132, 0.20128282975891362, 0.05622785953075989, 0.07435992901091991, 0.10629206539901054, -0.04099588192513456, 0.07712902605290646, -0.06864318081542202, 0.046561400462751805, 0.29889790010840994, 0.25794761164680774, 0.27898946453047835, -0.43878887224456536, -0.15408975798636676, 0.11138525401221831, 0.14682831161291054, 0.11449744480297618, 0.022341901185395925, -0.2602966963273028, 0.14307772709947567, -0.100548331455692, -0.019284024327466995, -0.03855357097218866, 0.007730584838630064, 0.0076336810770242115, -0.3046890953565826, -0.011047874342488205, 0.08202968969556462, -0.020794757326012072, 0.021498148795217276, -0.11490301251735376, -0.017458187065937596, 0.14654890279736085, -0.07226993225352919, 0.07646286722940757, 0.08778832934229919, -0.10259156313765308, -0.2595415205289812, 0.3030123715248445, -0.020785410667810103, -0.16606063223443926, 0.09369436251809415, -0.06737486335003505, -0.16661438120898547, 0.20576460915415185, 0.15108319942373782, 0.16188892788942094, -0.12020186562275859, 0.12232301656268132, -0.07488205587572377, 0.15011815798023473, 0.07784975162585793, 0.0534712931384211, 0.09504039315911739, 0.27177439073465115, 0.1704750566986268, 0.1477248480533371, -0.04834797972732264, -0.05735563072983337, -0.2139909609504368, -0.13669931901537855, -0.21065942376204158, -0.07228769180263676, -0.1724607116662968, -0.17126968468174986, 0.42524760456188865, 0.15557295251232775, 0.2114463247075353, 0.15833892929975105, 0.3711004028339749, 0.07201818739995361, 0.041273518182013344, 0.2316987320639031, 0.1279593584654124, 0.07220652660800388, 0.0688870342357246, -0.24065241454898015, 0.18467256163003976, 0.13855581145085719] |
711.3251 | Limited Feedback-based Block Diagonalization for the MIMO Broadcast
Channel | Block diagonalization is a linear precoding technique for the multiple
antenna broadcast (downlink) channel that involves transmission of multiple
data streams to each receiver such that no multi-user interference is
experienced at any of the receivers. This low-complexity scheme operates only a
few dB away from capacity but requires very accurate channel knowledge at the
transmitter. We consider a limited feedback system where each receiver knows
its channel perfectly, but the transmitter is only provided with a finite
number of channel feedback bits from each receiver. Using a random quantization
argument, we quantify the throughput loss due to imperfect channel knowledge as
a function of the feedback level. The quality of channel knowledge must improve
proportional to the SNR in order to prevent interference-limitations, and we
show that scaling the number of feedback bits linearly with the system SNR is
sufficient to maintain a bounded rate loss. Finally, we compare our
quantization strategy to an analog feedback scheme and show the superiority of
quantized feedback.
| cs.IT math.IT | block diagonalization is a linear precoding technique for the multiple antenna broadcast downlink channel that involves transmission of multiple data streams to each receiver such that no multiuser interference is experienced at any of the receivers this lowcomplexity scheme operates only a few db away from capacity but requires very accurate channel knowledge at the transmitter we consider a limited feedback system where each receiver knows its channel perfectly but the transmitter is only provided with a finite number of channel feedback bits from each receiver using a random quantization argument we quantify the throughput loss due to imperfect channel knowledge as a function of the feedback level the quality of channel knowledge must improve proportional to the snr in order to prevent interferencelimitations and we show that scaling the number of feedback bits linearly with the system snr is sufficient to maintain a bounded rate loss finally we compare our quantization strategy to an analog feedback scheme and show the superiority of quantized feedback | [['block', 'diagonalization', 'is', 'a', 'linear', 'precoding', 'technique', 'for', 'the', 'multiple', 'antenna', 'broadcast', 'downlink', 'channel', 'that', 'involves', 'transmission', 'of', 'multiple', 'data', 'streams', 'to', 'each', 'receiver', 'such', 'that', 'no', 'multiuser', 'interference', 'is', 'experienced', 'at', 'any', 'of', 'the', 'receivers', 'this', 'lowcomplexity', 'scheme', 'operates', 'only', 'a', 'few', 'db', 'away', 'from', 'capacity', 'but', 'requires', 'very', 'accurate', 'channel', 'knowledge', 'at', 'the', 'transmitter', 'we', 'consider', 'a', 'limited', 'feedback', 'system', 'where', 'each', 'receiver', 'knows', 'its', 'channel', 'perfectly', 'but', 'the', 'transmitter', 'is', 'only', 'provided', 'with', 'a', 'finite', 'number', 'of', 'channel', 'feedback', 'bits', 'from', 'each', 'receiver', 'using', 'a', 'random', 'quantization', 'argument', 'we', 'quantify', 'the', 'throughput', 'loss', 'due', 'to', 'imperfect', 'channel', 'knowledge', 'as', 'a', 'function', 'of', 'the', 'feedback', 'level', 'the', 'quality', 'of', 'channel', 'knowledge', 'must', 'improve', 'proportional', 'to', 'the', 'snr', 'in', 'order', 'to', 'prevent', 'interferencelimitations', 'and', 'we', 'show', 'that', 'scaling', 'the', 'number', 'of', 'feedback', 'bits', 'linearly', 'with', 'the', 'system', 'snr', 'is', 'sufficient', 'to', 'maintain', 'a', 'bounded', 'rate', 'loss', 'finally', 'we', 'compare', 'our', 'quantization', 'strategy', 'to', 'an', 'analog', 'feedback', 'scheme', 'and', 'show', 'the', 'superiority', 'of', 'quantized', 'feedback']] | [-0.24547342354397675, 0.030613622336492948, -0.04505396784970355, -0.0041620756418546435, -0.11508210850226488, -0.27695048051863547, 0.15116947547748413, 0.39186094104874564, -0.29072105079298705, -0.2680157572116203, 0.10744182993416539, -0.24653815917341357, -0.1419403169512828, 0.12452868589131934, -0.11815962336088599, 0.02475812326706435, 0.06627446126686863, 0.10478121258045842, -0.0337693582689276, -0.274417979255171, 0.29240977249488737, 0.14293713314691558, 0.3088328668112276, -0.006951807435919962, 0.17741790628869927, 0.013370862462069475, -0.023547123960026246, -0.07068259123763887, -0.060365415076686496, -0.00047601687029094955, 0.2839912069917418, 0.18690498367451677, 0.29225056599712046, -0.39682075612973877, -0.2561528840536683, 0.07692719712603564, 0.1564583700823189, 0.1432870870410669, -0.06608259665961491, -0.22388261001806978, 0.14783436338638706, -0.23510428140984801, -0.010863822566845068, 0.05521902424942066, -0.11601945699942184, 0.01846345365999984, -0.39205977682978277, 0.020886714422575583, 0.020370936237003017, -0.007665807831316914, -0.04060707372264005, -0.11502263292658893, 0.020514087684781905, 0.20021619296791712, -0.028507193994123443, 0.01621764518761377, 0.10512628229391738, -0.11471618340413155, -0.0845756269608079, 0.33229189757655214, -0.015514654518749633, -0.24678775580122886, 0.15954232538933866, -0.15769561392499315, -0.027592735969115094, 0.2132061840881162, 0.21478331549250715, 0.05065110885316688, -0.14425877295434475, 0.01506896257945677, -0.006998639487059469, 0.2679700861719051, 0.07190741664480145, 0.14147082100006206, 0.12566702079209613, 0.14868580300088335, 0.1260782358543266, 0.1633034049101719, -0.12168913197429658, -0.10051678945083262, -0.2731802920681686, -0.10349424777432875, -0.2615208549811164, 0.03537091926853286, -0.0919420470214923, -0.06961276022158883, 0.29979690482353516, 0.13343461156004993, 0.16440871833233026, 0.11863441019682441, 0.447629778748151, 0.10532922067121524, 0.05497633799251805, 0.13769707457366875, 0.1993748099492045, 0.14459158366733435, 0.08964968749560506, -0.2505327728697633, 0.06180127632020541, -0.023864694615196375] |
711.3252 | Study of B -> D** l nu with full reconstruction tagging | We report a study of semileptonic B decays to P-wave D** mesons. Semileptonic
decay to D*_2 meson is observed for the first time and its product branching
ratio is measured to be
Br(B+ -> anti-D*0_2 l+nu) x Br(anti-D*0_2 -> D- pi+) = 0.22 +- 0.03(stat.) +-
0.04(syst.)%. The result is obtained using the fully reconstructed B tags from
a data sample that contains 657 millions BB-bar pairs collected at the
Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+
e- collider.
| hep-ex | we report a study of semileptonic b decays to pwave d mesons semileptonic decay to d_2 meson is observed for the first time and its product branching ratio is measured to be brb antid0_2 lnu x brantid0_2 d pi 022 003stat 004syst the result is obtained using the fully reconstructed b tags from a data sample that contains 657 millions bbbar pairs collected at the upsilon4s resonance with the belle detector at the kekb asymmetricenergy e e collider | [['we', 'report', 'a', 'study', 'of', 'semileptonic', 'b', 'decays', 'to', 'pwave', 'd', 'mesons', 'semileptonic', 'decay', 'to', 'd_2', 'meson', 'is', 'observed', 'for', 'the', 'first', 'time', 'and', 'its', 'product', 'branching', 'ratio', 'is', 'measured', 'to', 'be', 'brb', 'antid0_2', 'lnu', 'x', 'brantid0_2', 'd', 'pi', '022', '003stat', '004syst', 'the', 'result', 'is', 'obtained', 'using', 'the', 'fully', 'reconstructed', 'b', 'tags', 'from', 'a', 'data', 'sample', 'that', 'contains', '657', 'millions', 'bbbar', 'pairs', 'collected', 'at', 'the', 'upsilon4s', 'resonance', 'with', 'the', 'belle', 'detector', 'at', 'the', 'kekb', 'asymmetricenergy', 'e', 'e', 'collider']] | [-0.11716369373837217, 0.19156835233336192, -0.057557748030184916, 0.04056878143302655, -0.06658720062114298, -0.18222291246179098, 0.10362474255931661, 0.28639571937291247, -0.18257751337889777, -0.21440165024250746, -0.10832438317409374, -0.5184428191890842, 0.11135149507562776, 0.1251469510392972, 0.1045471642558512, 0.1409893041150338, 0.20857125388360337, 0.045232496886072976, -0.01375946047483012, -0.207968171281544, 0.16295723374442836, -0.018963537068645422, 0.21116472651728577, 0.07418107528141454, -0.010509867342127683, -0.024598196945398262, -0.03608725784885648, -0.12665129122079202, -0.17416048503688025, 0.022840303209561267, 0.25173059920474006, 0.17667070819113992, 0.0876690535683577, -0.27336965244227796, 0.09167985321561757, 0.1972767134169484, 0.15044813413221977, -0.022741041660897042, 0.019363818671799413, -0.46298384206908705, 0.23104959568253866, -0.18415492440353295, -0.01379717629108774, -0.023323247209191322, 0.11722610708277084, -0.17042568980679407, -0.4250643434689233, 0.08636546457235358, -0.10326908343152977, 0.11463202757907934, 0.02246754985811238, -0.31214177345636446, -0.031584395123278035, -0.07114167354608837, 0.02817309202050398, 0.16059474469818125, 0.22728883691659002, -0.029128965899872128, -0.19512399141431638, 0.341150583919922, -0.11408912965903016, -0.08149875736011095, 0.13992314660725624, -0.32292553877433466, -0.09913403431174199, 0.23180618318484017, 0.3014880374371148, 0.04601974911546629, -0.24743901603659124, 0.15275169957940785, -0.070799360590172, 0.18660641236132697, 0.11684512136209953, 0.07528962491702068, 0.10690624274828128, 0.22665216524221346, -0.0572885855554456, 0.04301717157757498, -0.16214045320980644, 0.10597133075842928, -0.4290541197957569, -0.11385640808332123, -0.1047159739031677, 0.15857308107354728, 0.0373624730244429, -0.026897990463399572, 0.34026124044076395, -0.03723144347129978, 0.43211362996187647, -0.0029285767906051326, 0.2776356402288289, 0.04406880168244243, 0.015225779241039785, 0.08209981753143918, 0.2679832366197125, 0.19965550542148872, 0.16158167473775775, -0.32379399232970746, 0.017733407972723637, 0.017825552308319236] |
711.3253 | The Effect of Sensory Blind Zones on Milling Behavior in a Dynamic
Self-Propelled Particle Model | Emergent pattern formation in self-propelled particle (SPP) systems is
extensively studied because it addresses a range of swarming phenomena which
occur without leadership. Here we present a dynamic SPP model in which a
sensory blind zone is introduced into each particle's zone of interaction.
Using numerical simulations we discovered that the degradation of milling
patterns with increasing blind zone ranges undergoes two distinct transitions,
including a new, spatially nonhomogeneous transition that involves cessation of
particles' motion caused by broken symmetries in their interaction fields. Our
results also show the necessity of nearly complete panoramic sensory ability
for milling behavior to emerge in dynamic SPP models, suggesting a possible
relationship between collective behavior and sensory systems of biological
organisms.
| q-bio.PE | emergent pattern formation in selfpropelled particle spp systems is extensively studied because it addresses a range of swarming phenomena which occur without leadership here we present a dynamic spp model in which a sensory blind zone is introduced into each particles zone of interaction using numerical simulations we discovered that the degradation of milling patterns with increasing blind zone ranges undergoes two distinct transitions including a new spatially nonhomogeneous transition that involves cessation of particles motion caused by broken symmetries in their interaction fields our results also show the necessity of nearly complete panoramic sensory ability for milling behavior to emerge in dynamic spp models suggesting a possible relationship between collective behavior and sensory systems of biological organisms | [['emergent', 'pattern', 'formation', 'in', 'selfpropelled', 'particle', 'spp', 'systems', 'is', 'extensively', 'studied', 'because', 'it', 'addresses', 'a', 'range', 'of', 'swarming', 'phenomena', 'which', 'occur', 'without', 'leadership', 'here', 'we', 'present', 'a', 'dynamic', 'spp', 'model', 'in', 'which', 'a', 'sensory', 'blind', 'zone', 'is', 'introduced', 'into', 'each', 'particles', 'zone', 'of', 'interaction', 'using', 'numerical', 'simulations', 'we', 'discovered', 'that', 'the', 'degradation', 'of', 'milling', 'patterns', 'with', 'increasing', 'blind', 'zone', 'ranges', 'undergoes', 'two', 'distinct', 'transitions', 'including', 'a', 'new', 'spatially', 'nonhomogeneous', 'transition', 'that', 'involves', 'cessation', 'of', 'particles', 'motion', 'caused', 'by', 'broken', 'symmetries', 'in', 'their', 'interaction', 'fields', 'our', 'results', 'also', 'show', 'the', 'necessity', 'of', 'nearly', 'complete', 'panoramic', 'sensory', 'ability', 'for', 'milling', 'behavior', 'to', 'emerge', 'in', 'dynamic', 'spp', 'models', 'suggesting', 'a', 'possible', 'relationship', 'between', 'collective', 'behavior', 'and', 'sensory', 'systems', 'of', 'biological', 'organisms']] | [-0.1649449360241198, 0.22735980150913346, -0.0835317414909033, 0.03175963194038466, -0.0774913591380089, -0.13463418086659226, 0.052086407458804294, 0.37831200168357565, -0.27892123601573, -0.3188507474990467, 0.03309482817096099, -0.2551192285619297, -0.24787932709332997, 0.14128305064020993, -0.04602275222492546, 0.0191325605728553, 0.03867415367266542, -0.037957784514558515, 0.009126819964691649, -0.1504711183468748, 0.26014709387416557, 0.029486183968956692, 0.29391690601310616, 0.013512297354143318, 0.1311111188744258, 0.010935467786944405, 0.010997808141775934, 0.004327286271599389, -0.13230698926325482, 0.05147128154807803, 0.2585271432668316, 0.0719983225404206, 0.2666859852181653, -0.4511751189070233, -0.2920440258852885, 0.08979180621543616, 0.1974182225669087, 0.1166417241171476, -0.12555369188598656, -0.29304864358598903, 0.02244901711168557, -0.12205755078407415, -0.14925283843540918, -0.04477792271902248, 0.031032742297087433, 0.013578953742349551, -0.24676201273726647, 0.0992256044427434, 0.09298731664578447, 0.14243185851659815, -0.1027924853822974, -0.021495443397848788, -0.046280292768457555, 0.14139599591134494, 0.060300831804328235, -0.04509773867015364, 0.18701424733814548, -0.1645880360511463, -0.15888356274956741, 0.4231806833265444, -0.0012399998766772639, -0.14989952357896305, 0.27288085389566624, -0.13379431319012605, -0.11049252716919124, 0.20417149573311968, 0.21835570893412204, 0.10903952989758829, -0.16105442787757365, -0.0028868494757601075, -4.312514141991229e-05, 0.1680579327492801, 0.07041500824685129, 0.01840221166208197, 0.2451245827852922, 0.2365039391285282, 0.011832504627942029, 0.15794922100080144, -0.08280211117244878, -0.16157736644292867, -0.23036123799570538, -0.0966568125522364, -0.14191098624871948, -0.021615318729052858, -0.05137046918623698, -0.14086248728020465, 0.3881675143236831, 0.1389988672217133, 0.18948023596663854, 0.01535125497641768, 0.2517135910496463, 0.040506786300792845, 0.08065292323047643, 0.02755369155932123, 0.22895876267703913, 0.07827128956816554, 0.13750395224177106, -0.25610136193069394, 0.08923947337572857, 0.0007413539569824934] |
711.3254 | Restudy on Dark Matter Time-Evolution in the Littlest Higgs model with
T-parity | Following previous study, in the Littlest Higgs model (LHM), the heavy photon
is supposed to be a possible dark matter candidate and its relic abundance of
the heavy photon is estimated in terms of the Boltzman-Lee-Weinberg
time-evolution equation. The effects of the T-parity violation is also
considered. Our calculations show that when Higgs mass $M_H$ taken to be 300
GeV and don't consider T-parity violation, only two narrow ranges
$133<M_{A_{H}}<135$ GeV and $167<M_{A_{H}}<169$ GeV are tolerable with the
current astrophysical observation and if $135<M_{A_{H}}<167$ GeV, there must at
least exist another species of heavy particle contributing to the cold dark
matter. As long as the T-parity can be violated, the heavy photon can decay
into regular standard model particles and would affect the dark matter
abundance in the universe, we discuss the constraint on the T-parity violation
parameter based on the present data. Direct detection prospects are also
discussed in some detail.
| hep-ph hep-ex | following previous study in the littlest higgs model lhm the heavy photon is supposed to be a possible dark matter candidate and its relic abundance of the heavy photon is estimated in terms of the boltzmanleeweinberg timeevolution equation the effects of the tparity violation is also considered our calculations show that when higgs mass m_h taken to be 300 gev and dont consider tparity violation only two narrow ranges 133m_a_h135 gev and 167m_a_h169 gev are tolerable with the current astrophysical observation and if 135m_a_h167 gev there must at least exist another species of heavy particle contributing to the cold dark matter as long as the tparity can be violated the heavy photon can decay into regular standard model particles and would affect the dark matter abundance in the universe we discuss the constraint on the tparity violation parameter based on the present data direct detection prospects are also discussed in some detail | [['following', 'previous', 'study', 'in', 'the', 'littlest', 'higgs', 'model', 'lhm', 'the', 'heavy', 'photon', 'is', 'supposed', 'to', 'be', 'a', 'possible', 'dark', 'matter', 'candidate', 'and', 'its', 'relic', 'abundance', 'of', 'the', 'heavy', 'photon', 'is', 'estimated', 'in', 'terms', 'of', 'the', 'boltzmanleeweinberg', 'timeevolution', 'equation', 'the', 'effects', 'of', 'the', 'tparity', 'violation', 'is', 'also', 'considered', 'our', 'calculations', 'show', 'that', 'when', 'higgs', 'mass', 'm_h', 'taken', 'to', 'be', '300', 'gev', 'and', 'dont', 'consider', 'tparity', 'violation', 'only', 'two', 'narrow', 'ranges', '133m_a_h135', 'gev', 'and', '167m_a_h169', 'gev', 'are', 'tolerable', 'with', 'the', 'current', 'astrophysical', 'observation', 'and', 'if', '135m_a_h167', 'gev', 'there', 'must', 'at', 'least', 'exist', 'another', 'species', 'of', 'heavy', 'particle', 'contributing', 'to', 'the', 'cold', 'dark', 'matter', 'as', 'long', 'as', 'the', 'tparity', 'can', 'be', 'violated', 'the', 'heavy', 'photon', 'can', 'decay', 'into', 'regular', 'standard', 'model', 'particles', 'and', 'would', 'affect', 'the', 'dark', 'matter', 'abundance', 'in', 'the', 'universe', 'we', 'discuss', 'the', 'constraint', 'on', 'the', 'tparity', 'violation', 'parameter', 'based', 'on', 'the', 'present', 'data', 'direct', 'detection', 'prospects', 'are', 'also', 'discussed', 'in', 'some', 'detail']] | [-0.09293680632726063, 0.2579871347564197, -0.049566660183356016, 0.19366909880615846, -0.10168233339681064, -0.18622958158910577, -0.0005531432059895549, 0.3290015449999152, -0.20511688638440762, -0.3475439549121704, 0.029411987834169553, -0.3046647415974656, 0.04923391147403399, 0.1339580752923015, 0.016974192461930215, 0.042140370859006245, 0.050293130323454435, 0.044520270991818725, -0.01681911953405565, -0.25202912677274514, 0.2793865766544587, 0.06358998016819258, 0.1765534411753981, 0.14417681058202525, 0.05420023795119738, -0.02648606982925353, -0.013967250023867834, -0.07063952199107892, -0.13142520483337206, 0.016278750917597395, 0.1783328823669738, 0.08554091317991323, 0.13548273346355386, -0.3783828788436949, -0.21118701046420815, 0.21858734965978846, 0.15444098932454614, 0.06890142098937586, -0.11223655066459214, -0.3384911836112371, 0.07493496596706226, -0.2251077381566771, -0.11971679518339098, -0.016381132510817936, -0.044816611045216385, -0.07890160259243252, -0.276059955880801, 0.11450456112278688, -0.07076456799562014, -0.06001090204129444, -0.007561192656646961, -0.1585882266014311, -0.0743942731264601, -0.040436457729909406, 0.16184204700638893, -0.032679205651810345, 0.18997522134875022, -0.18424250529424907, -0.12676506386943967, 0.44747797623150853, -0.11524728987038739, -0.15054406694882247, 0.17261433363671894, -0.1646815952294305, -0.19020016676419088, 0.10709965385880472, 0.17278429065245782, 0.05406949489150901, -0.1638650167439443, 0.15014175092683463, -0.07206247348379269, 0.19083643682628265, 0.04808570365924891, 0.07407489964876927, 0.3004700269210278, 0.19486775702790585, 0.02280509067586044, 0.045403466387683326, -0.12623669684713557, -0.06478664103141872, -0.41795275505078405, -0.1542406167879833, -0.0943810379862584, 0.01010996251834267, -0.07955063605294453, -0.051821946676166075, 0.36950675798957616, 0.13940843655074933, 0.2189182649975968, -8.507651855816712e-05, 0.31203864107059465, 0.10875700009165558, 0.05072634371400282, 0.0438400762268921, 0.3536811342529364, 0.11495973935627656, 0.10307964390596829, -0.22315435406769235, 0.0426971388515085, -0.012752398645593407] |
711.3255 | On the cluster multiplication theorem for acyclic cluster algebras | In \cite{CK2005} and \cite{Hubery2005}, the authors proved the cluster
multiplication theorems for finite type and affine type. We generalize their
results and prove the cluster multiplication theorem for arbitrary type by
using the properties of 2--Calabi--Yau
(Auslander--Reiten formula) and high order associativity.
| math.RT math.RA | in citeck2005 and citehubery2005 the authors proved the cluster multiplication theorems for finite type and affine type we generalize their results and prove the cluster multiplication theorem for arbitrary type by using the properties of 2calabiyau auslanderreiten formula and high order associativity | [['in', 'citeck2005', 'and', 'citehubery2005', 'the', 'authors', 'proved', 'the', 'cluster', 'multiplication', 'theorems', 'for', 'finite', 'type', 'and', 'affine', 'type', 'we', 'generalize', 'their', 'results', 'and', 'prove', 'the', 'cluster', 'multiplication', 'theorem', 'for', 'arbitrary', 'type', 'by', 'using', 'the', 'properties', 'of', '2calabiyau', 'auslanderreiten', 'formula', 'and', 'high', 'order', 'associativity']] | [-0.09358293070208008, 0.0533933913812223, -0.06504720340414745, 0.10853576494335401, -0.0900098197616455, -0.14257992122594904, 0.04587654669473811, 0.32424708092358057, -0.3262247767571996, -0.23440671080677974, 0.13866212394758604, -0.17779069565301875, -0.12726616222275103, 0.21583331215036353, -0.1611274699794083, -0.0099944495028112, 0.04572860366755688, 0.0835877627861209, -0.10808883237130032, -0.3159601900090532, 0.3847707270122156, -0.07735746683802729, 0.26456854083552594, 0.061269893532437156, 0.1063235258660847, 0.07504640359476936, -0.10194135448191224, -0.0072682860829844705, -0.1505798242600044, 0.15473707782377194, 0.2636109586612026, 0.061546667337008726, 0.17245347425341606, -0.38303750880607745, -0.08334080606880712, 0.14028190096794832, 0.1283225186350869, 0.04789427795061251, -0.06012646541022128, -0.28859337024027254, 0.20721240732364538, -0.23270694150521262, -0.2577941037555475, -0.07336158673392564, 0.05001787159864495, 0.11383128875764315, -0.2526928319981912, 0.071571018092516, 0.2041335754187369, 0.09485506727473765, -0.1502609282005124, -0.10428423243688374, 0.0028536137216156575, 0.05732543189532873, -0.07427698033066785, -0.025674849782684226, 0.06421642147413478, -0.09244463829005636, -0.1632360431660966, 0.2858759062137546, -0.004858763584662683, -0.1797591783560631, 0.14331876522884135, -0.1246679868980697, -0.20566937659026646, 0.021272877537895266, 0.03616863809435106, 0.13070814638603023, -0.06313320317464631, 0.19911581354511038, -0.05361658532354163, 0.04236486613205293, 0.16323735717138865, 0.048570629845305184, 0.055146837766032394, 0.004643108150581035, 0.016767639348783146, 0.1841113418397471, -0.013473463449172857, -0.029956076021601514, -0.2905720963892413, -0.18633774100098668, -0.10598064968135298, 0.09038950777726203, -0.18426759052516256, -0.1479690097408687, 0.33218829488245455, 0.041326347227412755, 0.10527352077841032, 0.17026350953866068, 0.19910170792079554, 0.11552956395941537, 0.09590383661661024, 0.06438985610062756, 0.1111216197221926, 0.325985973115965, 0.07167191880686981, -0.13829164871400812, 0.017682307354378993, 0.2993350150404362] |
711.3256 | In-situ observation of a soap film catenoid - a simple educational
physics experiment | The solution to the Euler-Lagrange equation is an extremal functional.To
understand that the functional is stationary at local extrema (maxima or
minima), we propose a physics experiment that involves using soap film to form
a catenoid.
A catenoid is a surface that is formed between two coaxial circular rings and
is classified mathematically as a minimal surface.Using soap film, we create
catenoids between two rings and characterize the catenoid in-situ while varying
distance between rings. The shape of the soap film is very interesting and can
be explained using dynamic mechanics. By observing catenoid, physics students
can observe local extrema phenomena.
We stress that in-situ observation of soap film catenoids is an appropriate
physics experiment that combines theory and experimentation.
| physics.class-ph math-ph math.MP physics.ed-ph physics.pop-ph | the solution to the eulerlagrange equation is an extremal functionalto understand that the functional is stationary at local extrema maxima or minima we propose a physics experiment that involves using soap film to form a catenoid a catenoid is a surface that is formed between two coaxial circular rings and is classified mathematically as a minimal surfaceusing soap film we create catenoids between two rings and characterize the catenoid insitu while varying distance between rings the shape of the soap film is very interesting and can be explained using dynamic mechanics by observing catenoid physics students can observe local extrema phenomena we stress that insitu observation of soap film catenoids is an appropriate physics experiment that combines theory and experimentation | [['the', 'solution', 'to', 'the', 'eulerlagrange', 'equation', 'is', 'an', 'extremal', 'functionalto', 'understand', 'that', 'the', 'functional', 'is', 'stationary', 'at', 'local', 'extrema', 'maxima', 'or', 'minima', 'we', 'propose', 'a', 'physics', 'experiment', 'that', 'involves', 'using', 'soap', 'film', 'to', 'form', 'a', 'catenoid', 'a', 'catenoid', 'is', 'a', 'surface', 'that', 'is', 'formed', 'between', 'two', 'coaxial', 'circular', 'rings', 'and', 'is', 'classified', 'mathematically', 'as', 'a', 'minimal', 'surfaceusing', 'soap', 'film', 'we', 'create', 'catenoids', 'between', 'two', 'rings', 'and', 'characterize', 'the', 'catenoid', 'insitu', 'while', 'varying', 'distance', 'between', 'rings', 'the', 'shape', 'of', 'the', 'soap', 'film', 'is', 'very', 'interesting', 'and', 'can', 'be', 'explained', 'using', 'dynamic', 'mechanics', 'by', 'observing', 'catenoid', 'physics', 'students', 'can', 'observe', 'local', 'extrema', 'phenomena', 'we', 'stress', 'that', 'insitu', 'observation', 'of', 'soap', 'film', 'catenoids', 'is', 'an', 'appropriate', 'physics', 'experiment', 'that', 'combines', 'theory', 'and', 'experimentation']] | [-0.16963007367784316, 0.1375609777290157, -0.17587961711510383, 0.0768020534917507, -0.08823623937570442, -0.17543816502537515, 0.0008930518712169665, 0.3751504329719849, -0.29774245384575454, -0.3068331978204897, 0.07910212805155285, -0.29930219733771884, -0.16490598491164146, 0.18396415033622376, -0.06658287513685429, 0.029610826882486372, 0.005998058708274137, -0.05628994912287946, -0.07939610807659199, -0.18585969276836742, 0.27732781908313064, 0.017407693758101788, 0.2840248487842411, 0.05378842716878754, 0.07703323717331671, -0.02711875242638891, 0.06551056213270462, 0.08563053936271345, -0.1967869524413476, 0.09677649691890357, 0.2623136236876944, 0.04614384272589617, 0.21854890725512247, -0.4856644655909326, -0.1757412349836806, 0.050978570091301356, 0.11845259055084849, 0.06998418642689426, -0.06726688211704841, -0.2371542245717877, 0.07065720945375703, -0.07454387430038492, -0.1848613549994652, -0.056577863538700895, 0.0333370045971883, 0.0006337583304769596, -0.21988192882578253, 0.08288398551186389, 0.06088669283978515, 0.09385297292354122, -0.049161358298418126, -0.0074693587592850295, -0.07895831176932207, 0.07584058647872723, 0.02993502691427593, 0.01012858192799455, 0.19781634290071237, -0.08991766862977707, -0.09430034894306781, 0.33347651568415054, -0.05968201321439218, -0.1714172195761575, 0.1866454932230951, -0.14597911252324486, -0.0029853196041184967, 0.1081808395131286, 0.10962030530208722, 0.13104878031743405, -0.16597228007138534, 0.09464111272048331, -0.08974703473149467, 0.15978773571629773, 0.15890949658291825, -0.06612096196563394, 0.2792780865753322, 0.1816862039899422, 0.09470506301307577, 0.16584590449633266, -0.10102233923064008, -0.08677825731643618, -0.3214042286420146, -0.2011537435568151, -0.18390616889001202, 0.03207958313652267, -0.0493985987342381, -0.19977755046654808, 0.3670576439077287, 0.037219848428552936, 0.17650192032836504, -0.0034051629462105745, 0.22435093520335475, 0.029952236402866636, 0.045575696848711725, 0.06636329843283836, 0.2641979780845281, 0.1316963361765621, 0.080719097436532, -0.16169500463914474, 0.06313102045372697, 0.09272978822227125] |
711.3257 | Depth profile photoemission study of thermally diffused Mn/GaAs (001)
interfaces | We have performed a depth profile study of thermally diffused Mn/GaAs (001)
interfaces using photoemission spectroscopy combined with Ar$^+$-ion
sputtering. We found that Mn ion was thermally diffused into the deep region of
the GaAs substrate and completely reacted with GaAs. In the deep region, the Mn
2$p$ core-level and Mn 3$d$ valence-band spectra of the Mn/GaAs (001) sample
heated to 600 $^{\circ}$C were similar to those of Ga$_{1-x}$Mn$_x$As,
zinc-blende-type MnAs dots, and/or interstitial Mn in tetrahedrally coordinated
by As atoms, suggesting that the Mn 3$d$ states were essentially localized but
were hybridized with the electronic states of the host GaAs. Ferromagnetism was
observed in the dilute Mn phase.
| cond-mat.mtrl-sci cond-mat.str-el | we have performed a depth profile study of thermally diffused mngaas 001 interfaces using photoemission spectroscopy combined with arion sputtering we found that mn ion was thermally diffused into the deep region of the gaas substrate and completely reacted with gaas in the deep region the mn 2p corelevel and mn 3d valenceband spectra of the mngaas 001 sample heated to 600 circc were similar to those of ga_1xmn_xas zincblendetype mnas dots andor interstitial mn in tetrahedrally coordinated by as atoms suggesting that the mn 3d states were essentially localized but were hybridized with the electronic states of the host gaas ferromagnetism was observed in the dilute mn phase | [['we', 'have', 'performed', 'a', 'depth', 'profile', 'study', 'of', 'thermally', 'diffused', 'mngaas', '001', 'interfaces', 'using', 'photoemission', 'spectroscopy', 'combined', 'with', 'arion', 'sputtering', 'we', 'found', 'that', 'mn', 'ion', 'was', 'thermally', 'diffused', 'into', 'the', 'deep', 'region', 'of', 'the', 'gaas', 'substrate', 'and', 'completely', 'reacted', 'with', 'gaas', 'in', 'the', 'deep', 'region', 'the', 'mn', '2p', 'corelevel', 'and', 'mn', '3d', 'valenceband', 'spectra', 'of', 'the', 'mngaas', '001', 'sample', 'heated', 'to', '600', 'circc', 'were', 'similar', 'to', 'those', 'of', 'ga_1xmn_xas', 'zincblendetype', 'mnas', 'dots', 'andor', 'interstitial', 'mn', 'in', 'tetrahedrally', 'coordinated', 'by', 'as', 'atoms', 'suggesting', 'that', 'the', 'mn', '3d', 'states', 'were', 'essentially', 'localized', 'but', 'were', 'hybridized', 'with', 'the', 'electronic', 'states', 'of', 'the', 'host', 'gaas', 'ferromagnetism', 'was', 'observed', 'in', 'the', 'dilute', 'mn', 'phase']] | [-0.07060143165931174, 0.21987554989755154, 0.04577140182410495, -0.005074495526560403, 0.0896486822438828, -0.19403267644533734, 0.08865038868586678, 0.5049357062222761, -0.24154693898189505, -0.34809738733707457, -0.033119474179880405, -0.40644390751189047, -0.031464650493260436, 0.10976677328997522, 0.053881155033788104, -0.017580148208578793, 0.0014641866805629993, -0.13516250404811234, -0.10028856181766017, -0.23151658835966105, 0.2652793945787355, 0.052788024771971406, 0.2885565144616529, 0.05526929494813768, -0.054679141706843654, -0.02348087157908861, 0.15964154352288729, 0.034985729140750724, -0.15644675308751443, 0.09263575243990048, 0.2730689137007768, -0.10273139922956534, 0.15170195679727155, -0.5302868566190511, -0.2140572983088023, -0.08864096975928053, 0.1776316116324737, 0.12119635148401108, -0.1519203631104816, -0.3036069184404994, 0.0929174890673352, -0.060236108070666636, -0.05964800799180062, 0.008120541465084214, -0.0581038524097669, -0.01096730339426308, -0.20837018969511495, 0.08074542413115365, 0.04231639742560753, 0.10272550553408101, -0.15683567073033833, -0.15535153202080262, -0.1799132738757981, 0.03700798495305241, -0.018833250342441057, 0.0654434775570493, 0.23061737145720168, 0.015949076661036923, -0.058016544327549976, 0.3216223103771789, -0.04948482889716232, 0.002397766285533205, 0.18182619083501877, -0.26062375309219193, -0.05462310834651078, 0.25019290742524175, 0.09466443374889706, 0.17372268256560447, -0.14436701882508832, 0.07981686333916363, -0.018817191695743196, 0.22878895429088633, 0.08492909676668772, 0.04673839407468881, 0.19495983848907908, 0.15928716689279868, -0.03213676365750304, 0.14609493047371186, -0.21343378293746657, 0.029056814755526704, -0.09684677211965066, -0.22527127171259956, -0.21358458780675033, 0.07319921930106955, -0.04427845136090523, -0.17824961184395835, 0.33738508964077046, 0.018274815219087064, 0.18383091224417294, -0.12219602928428543, 0.18940486024142406, 0.027402945254809744, 0.0740340486224399, 0.021480501723398857, 0.2714551749015483, 0.20055455865697303, 0.1416390067021952, -0.2662467593551451, 0.10969686594902786, -0.013588046141870218] |
711.3258 | Singularities of solutions to Schrodinger equation on scattering
manifold | In this paper we study microlocal singularities of solutions to Schrodinger
equations on scattering manifolds, i.e., noncompact Riemannian manifolds with
asymptotically conic ends. We characterize the wave front set of the solutions
in terms of the initial condition and the classical scattering maps under the
nontrapping condition. Our result is closely related to a recent work by
Hassell and Wunsch, though our model is more general and the method, which
relies heavily on scattering theoretical ideas, is simple and quite different.
In particular, we use Egorov-type argument in the standard pseudodifferential
symbol classes, and avoid using Legendre distributions. In the proof, we employ
a microlocal smoothing property in terms of the radially homogenous wave front
set, which is more precise than the preceding results.
| math.AP math-ph math.MP | in this paper we study microlocal singularities of solutions to schrodinger equations on scattering manifolds ie noncompact riemannian manifolds with asymptotically conic ends we characterize the wave front set of the solutions in terms of the initial condition and the classical scattering maps under the nontrapping condition our result is closely related to a recent work by hassell and wunsch though our model is more general and the method which relies heavily on scattering theoretical ideas is simple and quite different in particular we use egorovtype argument in the standard pseudodifferential symbol classes and avoid using legendre distributions in the proof we employ a microlocal smoothing property in terms of the radially homogenous wave front set which is more precise than the preceding results | [['in', 'this', 'paper', 'we', 'study', 'microlocal', 'singularities', 'of', 'solutions', 'to', 'schrodinger', 'equations', 'on', 'scattering', 'manifolds', 'ie', 'noncompact', 'riemannian', 'manifolds', 'with', 'asymptotically', 'conic', 'ends', 'we', 'characterize', 'the', 'wave', 'front', 'set', 'of', 'the', 'solutions', 'in', 'terms', 'of', 'the', 'initial', 'condition', 'and', 'the', 'classical', 'scattering', 'maps', 'under', 'the', 'nontrapping', 'condition', 'our', 'result', 'is', 'closely', 'related', 'to', 'a', 'recent', 'work', 'by', 'hassell', 'and', 'wunsch', 'though', 'our', 'model', 'is', 'more', 'general', 'and', 'the', 'method', 'which', 'relies', 'heavily', 'on', 'scattering', 'theoretical', 'ideas', 'is', 'simple', 'and', 'quite', 'different', 'in', 'particular', 'we', 'use', 'egorovtype', 'argument', 'in', 'the', 'standard', 'pseudodifferential', 'symbol', 'classes', 'and', 'avoid', 'using', 'legendre', 'distributions', 'in', 'the', 'proof', 'we', 'employ', 'a', 'microlocal', 'smoothing', 'property', 'in', 'terms', 'of', 'the', 'radially', 'homogenous', 'wave', 'front', 'set', 'which', 'is', 'more', 'precise', 'than', 'the', 'preceding', 'results']] | [-0.1122544971463691, 0.04493401681012925, -0.12347640452477912, 0.09666027530423185, -0.11650594398229112, -0.10970125809281824, -0.018960506137978707, 0.3336514349305822, -0.2350206117956869, -0.20597094880236733, 0.13118960890043976, -0.297158076022301, -0.18655311749992712, 0.21118872632430266, -0.12015205545016684, 0.07959985739040759, 0.08004952822023281, 0.027823535800581018, -0.10375959472355223, -0.23469619611897807, 0.4583106730659042, 0.012318834970374741, 0.26931781327772525, 0.059712977717056, 0.05483537214252377, 0.03431954871203127, -0.026887089930354588, -0.026598022341908466, -0.17597632215643721, 0.13639380884236627, 0.21094251110855933, 0.08291395925804071, 0.22006264512592386, -0.4508870982474858, -0.20499150642764666, 0.09275769280734934, 0.13692963944988384, 0.11161583196160556, -0.01861957200326874, -0.31074130550147067, 0.07784667087628716, -0.07558487879578024, -0.19350461054578302, -0.05736737689679308, -0.01677308780246324, 0.036890092369679724, -0.2499141424083181, 0.07078504183464834, 0.11392325043467985, 0.02632073422278007, -0.0799302887585767, -0.06929245225112554, 0.01385461740315922, 0.013981707957423022, 0.0661919932904458, 0.044329600883722904, 0.0647774719813418, -0.07161713023144271, -0.07616951885621905, 0.3391856361450928, -0.06796245130340874, -0.2670508373055547, 0.17861329798301262, -0.15815369196371326, -0.12100540409277703, 0.11192309935182904, 0.13774891060987307, 0.21007861525210883, -0.1404393835879502, 0.1077664465161844, -0.0551636166823183, 0.09500612125867197, 0.12358801450670487, 0.007551314826067086, 0.08609935774978611, 0.1259872406709849, 0.1075166655974763, 0.11755339268946104, -0.01997556074357201, -0.11095171010557321, -0.3482342169342202, -0.1272780920468992, -0.15287141135383037, 0.08507808191667034, -0.098189519090562, -0.18951815018625628, 0.4012501533894289, 0.11328365590241211, 0.17618440996269666, 0.10289694900782179, 0.2596484902915695, 0.1447210259542654, -0.0033945158431907337, 0.0844201285470908, 0.20600987190658587, 0.17808453331799096, 0.10437132216118757, -0.1450544878269636, 0.0031924551857950827, 0.13740327665882726] |
711.3259 | Dynamic nuclear polarization and Knight shift measurements in a
breakdown regime of integer quantum Hall effect | Nuclear spins are polarized electrically in a breakdown regime of an
odd-integer quantum Hall effect (QHE). Electron excitation to the upper Landau
subband with the opposite spin polarity flips nuclear spins through the
hyperfine interaction. The polarized nuclear spins reduce the spin-splitting
energy and accelerate the QHE breakdown. The Knight shift of the nuclear spins
is also measured by tuning electron density during the irradiation of
radio-frequency magnetic fields.
| cond-mat.mes-hall | nuclear spins are polarized electrically in a breakdown regime of an oddinteger quantum hall effect qhe electron excitation to the upper landau subband with the opposite spin polarity flips nuclear spins through the hyperfine interaction the polarized nuclear spins reduce the spinsplitting energy and accelerate the qhe breakdown the knight shift of the nuclear spins is also measured by tuning electron density during the irradiation of radiofrequency magnetic fields | [['nuclear', 'spins', 'are', 'polarized', 'electrically', 'in', 'a', 'breakdown', 'regime', 'of', 'an', 'oddinteger', 'quantum', 'hall', 'effect', 'qhe', 'electron', 'excitation', 'to', 'the', 'upper', 'landau', 'subband', 'with', 'the', 'opposite', 'spin', 'polarity', 'flips', 'nuclear', 'spins', 'through', 'the', 'hyperfine', 'interaction', 'the', 'polarized', 'nuclear', 'spins', 'reduce', 'the', 'spinsplitting', 'energy', 'and', 'accelerate', 'the', 'qhe', 'breakdown', 'the', 'knight', 'shift', 'of', 'the', 'nuclear', 'spins', 'is', 'also', 'measured', 'by', 'tuning', 'electron', 'density', 'during', 'the', 'irradiation', 'of', 'radiofrequency', 'magnetic', 'fields']] | [-0.16459990614026354, 0.3605515766246464, 0.015986130289409473, 0.04338069636023779, -0.00017211987448019394, -0.13509736606257333, 0.052934318328735186, 0.38613505522464064, -0.25173025846859254, -0.3238715197944987, -0.06515108914944627, -0.28428759058748465, 0.01978617628523405, 0.1690271289722211, 0.0951340557143524, -0.045608123089524284, -0.06866709803959922, -0.020770475349348526, -0.09806979386864798, -0.17826370635758276, 0.27293530020076595, 0.08298310671723785, 0.3251535865491715, 0.11354041766321314, 0.06900623632405979, 0.05762268300168216, 0.15159337549888785, -0.02964272159759117, -0.04140142764410247, 0.03243380543384431, 0.25914346069127886, -0.18378781691949436, 0.18335619491889424, -0.5087555537027293, -0.12360291694547387, 0.011100039506951967, 0.10644676719211797, 0.2334738430985506, -0.11300855401255515, -0.3019135636479958, -0.06423036148096772, -0.17370816892471866, -0.1009191187652017, -0.07727248708892992, -0.012604517261565163, -0.008633767160168592, -0.25081061166913615, 0.1293059248882987, 0.11147571915753887, 0.07659633040210516, -0.09952930767305088, -0.12859645654595847, -0.04784927260724531, 0.07809637247355304, 0.06384914026568657, 0.09677157920204858, 0.3193047383827144, -0.14247298889887938, -0.21318553455605888, 0.2808787233155707, -0.032694811554814594, -0.09899901463717654, 0.0808173318568995, -0.30279589357340464, -0.04958757661802667, 0.2039876236728784, 0.1126174816618795, 0.06700857099739538, -0.09418178705390597, 0.10409174322241756, 0.00717525380373379, 0.1550275065254528, 0.07348034914879911, 0.07745108660985378, 0.3009430592123797, 0.09487589484964754, 0.09443705273873132, 0.11910457732797047, -0.22038607096866422, -0.03853742187788737, -0.19637409397873326, -0.09804764955702737, -0.25059023332120717, 0.14548885229084155, -0.012466363176708515, -0.08604720491322054, 0.45742923528819845, 0.07603096177774495, 0.1363741684354086, -0.1692902667555904, 0.3205650582288702, 0.18143672002074512, 0.07328156128768688, 0.06480785809538286, 0.28122172244163096, 0.32712174134423444, 0.07867236263658581, -0.4975516726532816, 0.008574672185046517, -0.0074803897456360464] |
711.326 | Bogoliubov Hamiltonian as Derivative of Dirac Hamiltonian via Braid
Relation | In this paper we discuss a new type of 4-dimensional representation of the
braid group. The matrices of braid operations are constructed by q-deformation
of Hamiltonians. One is the Dirac Hamiltonian for free electron with mass m,
the other, which we find, is related to the Bogoliubov Hamiltonian for
quasiparticles in $^3$He-B with the same free energy and mass being m/2. In the
process, we choose the free q-deformation parameter as a special value in order
to be consistent with the anyon description for fractional quantum Hall effect
with $\nu = 1/2$.
| quant-ph | in this paper we discuss a new type of 4dimensional representation of the braid group the matrices of braid operations are constructed by qdeformation of hamiltonians one is the dirac hamiltonian for free electron with mass m the other which we find is related to the bogoliubov hamiltonian for quasiparticles in 3heb with the same free energy and mass being m2 in the process we choose the free qdeformation parameter as a special value in order to be consistent with the anyon description for fractional quantum hall effect with nu 12 | [['in', 'this', 'paper', 'we', 'discuss', 'a', 'new', 'type', 'of', '4dimensional', 'representation', 'of', 'the', 'braid', 'group', 'the', 'matrices', 'of', 'braid', 'operations', 'are', 'constructed', 'by', 'qdeformation', 'of', 'hamiltonians', 'one', 'is', 'the', 'dirac', 'hamiltonian', 'for', 'free', 'electron', 'with', 'mass', 'm', 'the', 'other', 'which', 'we', 'find', 'is', 'related', 'to', 'the', 'bogoliubov', 'hamiltonian', 'for', 'quasiparticles', 'in', '3heb', 'with', 'the', 'same', 'free', 'energy', 'and', 'mass', 'being', 'm2', 'in', 'the', 'process', 'we', 'choose', 'the', 'free', 'qdeformation', 'parameter', 'as', 'a', 'special', 'value', 'in', 'order', 'to', 'be', 'consistent', 'with', 'the', 'anyon', 'description', 'for', 'fractional', 'quantum', 'hall', 'effect', 'with', 'nu', '12']] | [-0.1296304133362495, 0.23774364707316017, -0.05055350718180557, 0.043266218196020036, -0.08414009773264547, -0.156185242142733, 0.002240372017015713, 0.3094740034091276, -0.24800327408976935, -0.307151385925833, 0.041807576860454713, -0.27425059602739144, -0.11020755703346087, 0.18835113090872355, -0.06108376793921567, 0.02788589764795788, 0.00439416707728754, 0.1059720514055628, -0.14163400332064746, -0.20626391730895574, 0.3768880854023027, 0.023372465380017166, 0.221110365363759, -0.0009309331180302651, 0.06007601347352777, 0.013940179697493766, 0.023397540411998898, -0.033215853646602275, -0.17927028917308366, 0.06415856042416296, 0.2489899320036664, -0.034302535226343425, 0.1661614973793973, -0.3732505603232881, -0.1647250836837914, 0.08903269224626185, 0.12690539805955448, 0.1066573292034893, -0.03646158707931965, -0.2789280809625819, 0.03851948931281056, -0.22601792385423003, -0.1654929398599971, -0.05095663971196, 0.020827561453148558, -0.04085767375571387, -0.24180197907652665, 0.085006591938129, 0.038420023887858284, 0.024827881468009655, -0.05764942964702681, -0.12284072307399013, -0.035927914072769684, 0.0908172989243662, 0.037899686447997155, 0.018777025111306172, 0.09692329615559224, -0.13646388692771094, -0.13367220044013237, 0.41791206389501856, -0.06504706775508616, -0.24964962635639604, 0.12494769688327234, -0.17890998507481437, -0.13327542008258975, 0.09499777563218191, 0.07203236648014613, 0.07473032137092489, -0.12604228233161208, 0.1380306570835483, -0.08959544644496598, 0.10237498852234989, 0.021499771128439312, 0.04917966271494771, 0.17240204207681037, 0.12398853978451731, 0.09212859159151277, 0.1239736325479788, -0.05340373765800025, -0.09468236986476068, -0.32710407248565126, -0.2545093367347023, -0.21143803541845346, 0.10905910251344872, -0.06613533120013257, -0.1576413882916773, 0.43419316294347193, 0.12286212886837157, 0.18052133243878957, 0.03971355678743918, 0.19491854733736305, 0.18930852147980828, 0.08243358262640597, 0.07354079047729681, 0.16254939408051772, 0.15615848483323314, 0.01654755342547055, -0.2593550785952555, -0.08621170799821042, 0.15818969994926682] |
711.3261 | Mechanism of Slow Relaxation due to Screening Effect in a Frustrated
System | We study a slow relaxation process in a frustrated spin system in which a
type of screening effect due to a frustrated environment plays an important
role. This screening effect is attributed to the highly degenerate
configurations of the frustrated environment. This slow relaxation is due to an
entropy effect and is different from those due to the energy barrier observed
in systems such as random ferromagnets. In the present system, even if there is
no energy gap, the slow relaxation still takes place. Thus, we call this
phenomenon ``entropic slowing down''. Here, we study the mechanism of entropic
slowing down quantitatively in an Ising spin model with the so-called decorated
bonds. The spins included in decorated bonds (decoration spins) cause a
peculiar density of states, which causes on entropy-induced screening effect.
We analytically estimate the time scale of the system that increases
exponentially with the number of decoration spins. We demonstrate the scaling
of relaxation processes using the time scale at all temperatures including the
critical point.
| cond-mat.stat-mech cond-mat.dis-nn | we study a slow relaxation process in a frustrated spin system in which a type of screening effect due to a frustrated environment plays an important role this screening effect is attributed to the highly degenerate configurations of the frustrated environment this slow relaxation is due to an entropy effect and is different from those due to the energy barrier observed in systems such as random ferromagnets in the present system even if there is no energy gap the slow relaxation still takes place thus we call this phenomenon entropic slowing down here we study the mechanism of entropic slowing down quantitatively in an ising spin model with the socalled decorated bonds the spins included in decorated bonds decoration spins cause a peculiar density of states which causes on entropyinduced screening effect we analytically estimate the time scale of the system that increases exponentially with the number of decoration spins we demonstrate the scaling of relaxation processes using the time scale at all temperatures including the critical point | [['we', 'study', 'a', 'slow', 'relaxation', 'process', 'in', 'a', 'frustrated', 'spin', 'system', 'in', 'which', 'a', 'type', 'of', 'screening', 'effect', 'due', 'to', 'a', 'frustrated', 'environment', 'plays', 'an', 'important', 'role', 'this', 'screening', 'effect', 'is', 'attributed', 'to', 'the', 'highly', 'degenerate', 'configurations', 'of', 'the', 'frustrated', 'environment', 'this', 'slow', 'relaxation', 'is', 'due', 'to', 'an', 'entropy', 'effect', 'and', 'is', 'different', 'from', 'those', 'due', 'to', 'the', 'energy', 'barrier', 'observed', 'in', 'systems', 'such', 'as', 'random', 'ferromagnets', 'in', 'the', 'present', 'system', 'even', 'if', 'there', 'is', 'no', 'energy', 'gap', 'the', 'slow', 'relaxation', 'still', 'takes', 'place', 'thus', 'we', 'call', 'this', 'phenomenon', 'entropic', 'slowing', 'down', 'here', 'we', 'study', 'the', 'mechanism', 'of', 'entropic', 'slowing', 'down', 'quantitatively', 'in', 'an', 'ising', 'spin', 'model', 'with', 'the', 'socalled', 'decorated', 'bonds', 'the', 'spins', 'included', 'in', 'decorated', 'bonds', 'decoration', 'spins', 'cause', 'a', 'peculiar', 'density', 'of', 'states', 'which', 'causes', 'on', 'entropyinduced', 'screening', 'effect', 'we', 'analytically', 'estimate', 'the', 'time', 'scale', 'of', 'the', 'system', 'that', 'increases', 'exponentially', 'with', 'the', 'number', 'of', 'decoration', 'spins', 'we', 'demonstrate', 'the', 'scaling', 'of', 'relaxation', 'processes', 'using', 'the', 'time', 'scale', 'at', 'all', 'temperatures', 'including', 'the', 'critical', 'point']] | [-0.1572679180406525, 0.21794606074940032, -0.05912117581273579, 0.07947962787419059, -0.020518372830806555, -0.1118602114171905, 0.07027992211466287, 0.3416183914342326, -0.30825293447242347, -0.2731778388034307, 0.06254373293810574, -0.2811627522867987, -0.13033593139188743, 0.15455499282915391, 0.019274384954464648, -0.018330560790787556, -0.00026397077048833143, -0.007323303614383351, -0.0423350788981927, -0.1979859841375439, 0.2820270893434627, 0.06415168709950493, 0.29412951247632774, 0.10991602233460473, 0.07998055047327708, 0.02766603951671434, 0.10428290215772605, 0.03792239260764982, -0.12000816116761451, 0.03547775425145146, 0.18184884402044899, -0.03066037819458696, 0.2586536089092225, -0.4576218666252262, -0.18471977984097726, 0.10398748715012195, 0.15849924721046835, 0.18260710621615148, -0.05537032191697396, -0.22105536771405623, 0.010716154782413811, -0.16125766090173163, -0.15462521351539268, -0.06256701821784773, 0.029435869649297997, -0.026290074569412958, -0.2457438250083454, 0.1462830381598993, 0.12862920507364822, 0.0575882625420338, -0.05649912168277416, -0.07443051135605257, -0.012671813424565121, 0.09659918119941285, 0.09751565666289559, 0.03623107682305673, 0.16065257407089104, -0.12216261017706502, -0.1040363351808872, 0.38190199859708013, -0.03360032212215024, -0.15462013386483764, 0.21800982247212689, -0.14177774815558047, -0.12413700767963551, 0.14522678008258433, 0.1723560318350792, 0.11994948504704558, -0.14902202447619803, 0.06697006958842132, 0.03815664359560783, 0.1869368759037238, -0.0018236222481745445, 0.0615095722560163, 0.25026314483375517, 0.21933942573133877, 0.06115878804051457, 0.20806171174557087, -0.11796071207008609, -0.15097776879166103, -0.22774319405929594, -0.14117146513918358, -0.2090346919558106, 0.09686226394546112, -0.08521547588137394, -0.17584884176755736, 0.35912120718966256, 0.1823383515566855, 0.2199200479213349, -0.002560203533876174, 0.22158290817775947, 0.12791100604958766, 0.10372588596680386, 0.047623525948743306, 0.21799561694197492, 0.12881784927947615, 0.07745421661097489, -0.31636686294484595, 0.11215242541333784, 0.033995000552107205] |
711.3262 | Harmonic analysis related to Schroedinger operators | In this article we give an overview on some recent development of
Littlewood-Paley theory for Schr\"odinger operators. We extend the
Littlewood-Paley theory for special potentials considered in the authors'
previous work. We elaborate our approach by considering potential in
$C^\infty_0$ or Schwartz class in one dimension. In particular the low energy
estimates are treated by establishing some new and refined asymptotics for the
eigenfunctions and their Fourier transforms. We give maximal function
characterization of the Besov spaces and Triebel-Lizorkin spaces associated
with $H$. Then we prove a spectral multiplier theorem on these spaces and
derive Strichartz estimates for the wave equation with a potential. We also
consider similar problem for the unbounded potentials in the Hermite and
Laguerre cases, whose potentials $V=a|x|^2+b|x|^{-2}$ are known to be critical
in the study of perturbation of nonlinear dispersive equations. This improves
upon the previous results when we apply the upper Gaussian bound for the heat
kernel and its gradient.
| math.AP math.CA | in this article we give an overview on some recent development of littlewoodpaley theory for schrodinger operators we extend the littlewoodpaley theory for special potentials considered in the authors previous work we elaborate our approach by considering potential in cinfty_0 or schwartz class in one dimension in particular the low energy estimates are treated by establishing some new and refined asymptotics for the eigenfunctions and their fourier transforms we give maximal function characterization of the besov spaces and triebellizorkin spaces associated with h then we prove a spectral multiplier theorem on these spaces and derive strichartz estimates for the wave equation with a potential we also consider similar problem for the unbounded potentials in the hermite and laguerre cases whose potentials vax2bx2 are known to be critical in the study of perturbation of nonlinear dispersive equations this improves upon the previous results when we apply the upper gaussian bound for the heat kernel and its gradient | [['in', 'this', 'article', 'we', 'give', 'an', 'overview', 'on', 'some', 'recent', 'development', 'of', 'littlewoodpaley', 'theory', 'for', 'schrodinger', 'operators', 'we', 'extend', 'the', 'littlewoodpaley', 'theory', 'for', 'special', 'potentials', 'considered', 'in', 'the', 'authors', 'previous', 'work', 'we', 'elaborate', 'our', 'approach', 'by', 'considering', 'potential', 'in', 'cinfty_0', 'or', 'schwartz', 'class', 'in', 'one', 'dimension', 'in', 'particular', 'the', 'low', 'energy', 'estimates', 'are', 'treated', 'by', 'establishing', 'some', 'new', 'and', 'refined', 'asymptotics', 'for', 'the', 'eigenfunctions', 'and', 'their', 'fourier', 'transforms', 'we', 'give', 'maximal', 'function', 'characterization', 'of', 'the', 'besov', 'spaces', 'and', 'triebellizorkin', 'spaces', 'associated', 'with', 'h', 'then', 'we', 'prove', 'a', 'spectral', 'multiplier', 'theorem', 'on', 'these', 'spaces', 'and', 'derive', 'strichartz', 'estimates', 'for', 'the', 'wave', 'equation', 'with', 'a', 'potential', 'we', 'also', 'consider', 'similar', 'problem', 'for', 'the', 'unbounded', 'potentials', 'in', 'the', 'hermite', 'and', 'laguerre', 'cases', 'whose', 'potentials', 'vax2bx2', 'are', 'known', 'to', 'be', 'critical', 'in', 'the', 'study', 'of', 'perturbation', 'of', 'nonlinear', 'dispersive', 'equations', 'this', 'improves', 'upon', 'the', 'previous', 'results', 'when', 'we', 'apply', 'the', 'upper', 'gaussian', 'bound', 'for', 'the', 'heat', 'kernel', 'and', 'its', 'gradient']] | [-0.08089787695076196, 0.06796341858768551, -0.06215354435055727, 0.1135544105312757, -0.06699501896697667, -0.0987914604014687, 0.008244734228168044, 0.35226824208493196, -0.24971498687631422, -0.20106471247009694, 0.14167444006494817, -0.27997676152886164, -0.17121458911306917, 0.2402754101962332, -0.0935421689143104, 0.0946123147024698, 0.032071537895488646, 0.032035749902828564, -0.1147189554848498, -0.25462492306776824, 0.40003764591510255, 0.005606615801732386, 0.20296935265012567, 0.07947224614120299, 0.025109392996396748, 0.04333869455562484, -0.06525666016424375, -0.060034804818919395, -0.22448671890212404, 0.16505937653428485, 0.22203952748208278, 0.06210942705492339, 0.28996624969426665, -0.42815893648132203, -0.24511734587891448, 0.12623824792718816, 0.13623289143246028, 0.06444742164664692, -0.05271129251247452, -0.3057856971998849, 0.026666677062730154, -0.12110213460100273, -0.19751084737119176, -0.11778457323690095, -0.0001412740908563137, 0.10242583652988317, -0.3012536053275389, 0.10384862298247284, 0.11330339705962086, 0.02957679778769342, -0.15409278081384517, -0.13653746013559642, 0.05039944166107283, 0.04425708825508463, 0.010694471098512652, 0.025301720011198233, 0.030579499984460492, -0.10158416222810986, -0.091876713147447, 0.2971143820082709, -0.09108678256612152, -0.2596933837980032, 0.1357371606402129, -0.1561932167244865, -0.1588192064375166, 0.03751851472357708, 0.1648635329558484, 0.15605653376889325, -0.11634014803031835, 0.1610978108464605, -0.0294380859891516, 0.06296743421004183, 0.1039814164256724, 0.07838756588678206, 0.04822198538289916, 0.09787671661094552, 0.1308434415150494, 0.16122328932922814, -0.015707877777411693, -0.07893596585697284, -0.3406788984133351, -0.16978287292351465, -0.18607345446944237, 0.05609345395266334, -0.11994183827736114, -0.18646972176408574, 0.4013806961176376, 0.13136910486575817, 0.17557820513423894, 0.10029846814971778, 0.2199022104182551, 0.1906839234371399, 0.014670405219939928, 0.06857509486257068, 0.2176297132845878, 0.19137696751032865, 0.11902046591163642, -0.14827211415244929, -0.0358944155448567, 0.1963346646167338] |
711.3263 | Preferential survival in models of complex ad hoc networks | There has been a rich interplay in recent years between (i) empirical
investigations of real world dynamic networks, (ii) analytical modeling of the
microscopic mechanisms that drive the emergence of such networks, and (iii)
harnessing of these mechanisms to either manipulate existing networks, or
engineer new networks for specific tasks. We continue in this vein, and study
the deletion phenomenon in the web by following two different sets of web-sites
(each comprising more than 150,000 pages) over a one-year period. Empirical
data show that there is a significant deletion component in the underlying web
networks, but the deletion process is not uniform. This motivates us to
introduce a new mechanism of preferential survival (PS), where nodes are
removed according to a degree-dependent deletion kernel. We use the mean-field
rate equation approach to study a general dynamic model driven by Preferential
Attachment (PA), Double PA (DPA), and a tunable PS, where c nodes (c<1) are
deleted per node added to the network, and verify our predictions via
large-scale simulations. One of our results shows that, unlike in the case of
uniform deletion, the PS kernel when coupled with the standard PA mechanism,
can lead to heavy-tailed power law networks even in the presence of extreme
turnover in the network. Moreover, a weak DPA mechanism, coupled with PS, can
help make the network even more heavy-tailed, especially in the limit when
deletion and insertion rates are almost equal, and the overall network growth
is minimal. The dynamics reported in this work can be used to design and
engineer stable ad hoc networks and explain the stability of the power law
exponents observed in real-world networks.
| physics.soc-ph cond-mat.stat-mech | there has been a rich interplay in recent years between i empirical investigations of real world dynamic networks ii analytical modeling of the microscopic mechanisms that drive the emergence of such networks and iii harnessing of these mechanisms to either manipulate existing networks or engineer new networks for specific tasks we continue in this vein and study the deletion phenomenon in the web by following two different sets of websites each comprising more than 150000 pages over a oneyear period empirical data show that there is a significant deletion component in the underlying web networks but the deletion process is not uniform this motivates us to introduce a new mechanism of preferential survival ps where nodes are removed according to a degreedependent deletion kernel we use the meanfield rate equation approach to study a general dynamic model driven by preferential attachment pa double pa dpa and a tunable ps where c nodes c1 are deleted per node added to the network and verify our predictions via largescale simulations one of our results shows that unlike in the case of uniform deletion the ps kernel when coupled with the standard pa mechanism can lead to heavytailed power law networks even in the presence of extreme turnover in the network moreover a weak dpa mechanism coupled with ps can help make the network even more heavytailed especially in the limit when deletion and insertion rates are almost equal and the overall network growth is minimal the dynamics reported in this work can be used to design and engineer stable ad hoc networks and explain the stability of the power law exponents observed in realworld networks | [['there', 'has', 'been', 'a', 'rich', 'interplay', 'in', 'recent', 'years', 'between', 'i', 'empirical', 'investigations', 'of', 'real', 'world', 'dynamic', 'networks', 'ii', 'analytical', 'modeling', 'of', 'the', 'microscopic', 'mechanisms', 'that', 'drive', 'the', 'emergence', 'of', 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711.3264 | The Focusing NLS Equation on the Half-Line with Periodic Boundary
Conditions | We consider the Dirichlet problem for the focusing NLS equation on the
half-line, with given Schwartz initial data and boundary data $q(0,t)$ equal to
an exponentially decaying perturbation $u(t)$ of the periodic boundary data $ a
e^{2i\omega t + i \epsilon}$ at $x=0.$ It is known from PDE theory that this is
a well-posed problem (for fixed initial data and fixed $u$). On the other hand,
the associated inverse scattering transform formalism involves the Neumann
boundary value for $x=0$. Thus the implementation of this formalism requires
the understanding of the "Dirichlet-to-Neumann" map which characterises the
associated Neumann boundary value.
We consider this map in an indirect way: we postulate a certain
Riemann-Hilbert problem and then prove that the solution of the
initial-boundary value problem for the focusing NLS constructed through this
Riemann-Hilbert problem satisfies all the required properties: the data
$q(x,0)$ are Schwartz and $q(0,t)-a e^{2i\omega t + i \epsilon}$ is
exponentially decaying.
More specifically, we focus on the case $-3a^2 < \omega < a^2.$ By
considering a large class of appropriate scattering data for the t-problem, we
provide solutions of the above Dirichlet problem such that the data $q_x(0,t)$
is given by an exponentially decaying perturbation of the function $2iab
e^{2i\omega t + i \epsilon},$ where $\omega = a^2-2b^2,~~b>0$.
| math.AP math-ph math.MP | we consider the dirichlet problem for the focusing nls equation on the halfline with given schwartz initial data and boundary data q0t equal to an exponentially decaying perturbation ut of the periodic boundary data a e2iomega t i epsilon at x0 it is known from pde theory that this is a wellposed problem for fixed initial data and fixed u on the other hand the associated inverse scattering transform formalism involves the neumann boundary value for x0 thus the implementation of this formalism requires the understanding of the dirichlettoneumann map which characterises the associated neumann boundary value we consider this map in an indirect way we postulate a certain riemannhilbert problem and then prove that the solution of the initialboundary value problem for the focusing nls constructed through this riemannhilbert problem satisfies all the required properties the data qx0 are schwartz and q0ta e2iomega t i epsilon is exponentially decaying more specifically we focus on the case 3a2 omega a2 by considering a large class of appropriate scattering data for the tproblem we provide solutions of the above dirichlet problem such that the data q_x0t is given by an exponentially decaying perturbation of the function 2iab e2iomega t i epsilon where omega a22b2b0 | [['we', 'consider', 'the', 'dirichlet', 'problem', 'for', 'the', 'focusing', 'nls', 'equation', 'on', 'the', 'halfline', 'with', 'given', 'schwartz', 'initial', 'data', 'and', 'boundary', 'data', 'q0t', 'equal', 'to', 'an', 'exponentially', 'decaying', 'perturbation', 'ut', 'of', 'the', 'periodic', 'boundary', 'data', 'a', 'e2iomega', 't', 'i', 'epsilon', 'at', 'x0', 'it', 'is', 'known', 'from', 'pde', 'theory', 'that', 'this', 'is', 'a', 'wellposed', 'problem', 'for', 'fixed', 'initial', 'data', 'and', 'fixed', 'u', 'on', 'the', 'other', 'hand', 'the', 'associated', 'inverse', 'scattering', 'transform', 'formalism', 'involves', 'the', 'neumann', 'boundary', 'value', 'for', 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711.3265 | X-Ray Emission from Jet-Wind Interaction in Planetary Nebulae | We conduct 2D numerical simulations of jets expanding into the slow wind of
asymptotic giant branch stars. We show that the post-shock jets' material can
explain the observed extended X-ray emission from some planetary nebulae (PNs).
Such jets are thought to shape many PNs, and therefore it is expected that this
process will contribute to the X-ray emission from some PNs. In other PNs (not
simulated in this work) the source of the extended X-ray emission is the
shocked spherical wind blown by the central star. In a small fraction of PNs
both sources might contribute, and a two-temperatures gas will fit better the
X-ray properties than a one-temperature gas. A spacial separation between these
two components is expected.
| astro-ph | we conduct 2d numerical simulations of jets expanding into the slow wind of asymptotic giant branch stars we show that the postshock jets material can explain the observed extended xray emission from some planetary nebulae pns such jets are thought to shape many pns and therefore it is expected that this process will contribute to the xray emission from some pns in other pns not simulated in this work the source of the extended xray emission is the shocked spherical wind blown by the central star in a small fraction of pns both sources might contribute and a twotemperatures gas will fit better the xray properties than a onetemperature gas a spacial separation between these two components is expected | [['we', 'conduct', '2d', 'numerical', 'simulations', 'of', 'jets', 'expanding', 'into', 'the', 'slow', 'wind', 'of', 'asymptotic', 'giant', 'branch', 'stars', 'we', 'show', 'that', 'the', 'postshock', 'jets', 'material', 'can', 'explain', 'the', 'observed', 'extended', 'xray', 'emission', 'from', 'some', 'planetary', 'nebulae', 'pns', 'such', 'jets', 'are', 'thought', 'to', 'shape', 'many', 'pns', 'and', 'therefore', 'it', 'is', 'expected', 'that', 'this', 'process', 'will', 'contribute', 'to', 'the', 'xray', 'emission', 'from', 'some', 'pns', 'in', 'other', 'pns', 'not', 'simulated', 'in', 'this', 'work', 'the', 'source', 'of', 'the', 'extended', 'xray', 'emission', 'is', 'the', 'shocked', 'spherical', 'wind', 'blown', 'by', 'the', 'central', 'star', 'in', 'a', 'small', 'fraction', 'of', 'pns', 'both', 'sources', 'might', 'contribute', 'and', 'a', 'twotemperatures', 'gas', 'will', 'fit', 'better', 'the', 'xray', 'properties', 'than', 'a', 'onetemperature', 'gas', 'a', 'spacial', 'separation', 'between', 'these', 'two', 'components', 'is', 'expected']] | [-0.06314612132737855, 0.14545901084192475, -0.09568077558651567, 0.1511371030341776, -0.10959952158046397, -0.029807397772131834, 0.018633305414785015, 0.4071078084219815, -0.22281577531889601, -0.2953977373318147, 0.07925691957668385, -0.3083099725782492, -0.039832678284117226, 0.23407880153301788, -0.007609709640037489, -0.03395217270353588, 0.09107375663795934, -0.06836169099600954, -0.05800393514998131, -0.19775197275330203, 0.31420510105780813, 0.06908370170868554, 0.14903592042056685, 0.006329065007236549, 0.03359770986756657, -0.15778275463982658, -0.04384333546810105, -0.0073116744426473725, -0.08743505540239266, 0.06171944953690646, 0.20868265276214393, 0.14968444556944957, 0.18982360866505324, -0.4229063764056664, -0.2794073914351352, 0.06168743051683246, 0.24506211737604908, 0.022417183446138505, -0.05952883283291959, -0.22992141362500645, 0.060036188297336764, -0.22457249206885443, -0.19830914565077903, 0.04017597781020706, -0.012894264899857216, 0.07178137161259902, -0.2048317277606703, 0.0835843314466035, 0.08118839446411831, -0.000999720320223941, -0.10333926381416998, -0.07257495169385762, -0.06388328815968233, 0.06609177233560516, 0.061734297432911076, 0.059039328969478354, 0.20664680863620113, -0.14351180124775334, -0.01498213336187399, 0.39573833507375195, -0.017385666494053528, -0.05609986302837477, 0.26746940139239117, -0.27336443141023864, -0.1579459241662427, 0.22285523269546487, 0.18318345420204607, 0.11541979784793141, -0.14447530633049732, -0.05977841686966466, -0.05601901101674569, 0.18788332835045027, 0.04052383304668306, 0.02505549600632009, 0.3212084908796064, 0.11821037557141824, -0.028778264633544142, 0.1901904138883426, -0.2253871510215735, -0.02509086640251769, -0.25589580741963525, -0.11149337955541372, -0.11247147392813053, 0.08979531440706785, -0.10186130219603834, -0.11979355028449652, 0.348375180440213, 0.10737543601653207, 0.16867977289988076, -0.05079505802329504, 0.3433547641537389, 0.08773910425015394, 0.061809644994909985, 0.17373074016975776, 0.3245658754214242, 0.15717663947035068, 0.11591106811755385, -0.24908473177702498, 0.09784668493005684, 0.006725427181602029] |
711.3266 | Umbral Fine Structures in Sunspots Observed with Hinode Solar Optical
Telescope | High resolution imaging observation of a sunspot umbra was done with Hinode
Solar Optical Telescope (SOT). Filtergrams in wavelengths of blue and green
continuum were taken during three consecutive days. The umbra consisted of a
dark core region, several diffuse components and numerous umbral dots. We
derived basic properties of umbral dots (UDs), especially their temperatures,
lifetimes, proper motions, spatial distribution and morphological evolution.
Brightness of UDs is confirmed to depend on the brightness of their surrounding
background. Several UDs show fission and fusion. Thanks to the stable condition
of space observation, we could first follow the temporal behavior of these
events. The derived properties of internal structure of the umbra are discussed
in viewpoint of magnetoconvection in a strong magnetic field.
| astro-ph | high resolution imaging observation of a sunspot umbra was done with hinode solar optical telescope sot filtergrams in wavelengths of blue and green continuum were taken during three consecutive days the umbra consisted of a dark core region several diffuse components and numerous umbral dots we derived basic properties of umbral dots uds especially their temperatures lifetimes proper motions spatial distribution and morphological evolution brightness of uds is confirmed to depend on the brightness of their surrounding background several uds show fission and fusion thanks to the stable condition of space observation we could first follow the temporal behavior of these events the derived properties of internal structure of the umbra are discussed in viewpoint of magnetoconvection in a strong magnetic field | [['high', 'resolution', 'imaging', 'observation', 'of', 'a', 'sunspot', 'umbra', 'was', 'done', 'with', 'hinode', 'solar', 'optical', 'telescope', 'sot', 'filtergrams', 'in', 'wavelengths', 'of', 'blue', 'and', 'green', 'continuum', 'were', 'taken', 'during', 'three', 'consecutive', 'days', 'the', 'umbra', 'consisted', 'of', 'a', 'dark', 'core', 'region', 'several', 'diffuse', 'components', 'and', 'numerous', 'umbral', 'dots', 'we', 'derived', 'basic', 'properties', 'of', 'umbral', 'dots', 'uds', 'especially', 'their', 'temperatures', 'lifetimes', 'proper', 'motions', 'spatial', 'distribution', 'and', 'morphological', 'evolution', 'brightness', 'of', 'uds', 'is', 'confirmed', 'to', 'depend', 'on', 'the', 'brightness', 'of', 'their', 'surrounding', 'background', 'several', 'uds', 'show', 'fission', 'and', 'fusion', 'thanks', 'to', 'the', 'stable', 'condition', 'of', 'space', 'observation', 'we', 'could', 'first', 'follow', 'the', 'temporal', 'behavior', 'of', 'these', 'events', 'the', 'derived', 'properties', 'of', 'internal', 'structure', 'of', 'the', 'umbra', 'are', 'discussed', 'in', 'viewpoint', 'of', 'magnetoconvection', 'in', 'a', 'strong', 'magnetic', 'field']] | [-0.12326834127154263, 0.19019841206198956, -0.088536310681432, 0.0917360634804459, -0.08004364053734013, -0.014213585703190966, -0.012473175397570261, 0.5075538189562617, -0.21955276124912207, -0.3453881358040772, 0.07598298116583285, -0.24806895854379066, -0.07428052024457787, 0.1985171086452596, -0.034055809156642844, -0.0033078120432633784, 0.10118630960045505, -0.037032034422259504, -0.0034269619672024835, -0.2005192671490253, 0.24737759408747137, 0.039835459489726506, 0.2591051760694531, -0.004234220634107707, 0.05538345314562321, -0.08157516448457008, -0.10363857137024036, 0.031645931681135255, -0.1043904513677918, 0.09173387169960093, 0.17494360804290618, 0.0930505598939146, 0.20997670677979094, -0.4741813982149861, -0.21454167100753574, -0.004372989155779608, 0.16948388796681385, 0.00010535928690767862, -0.021131444528706553, -0.32583568960458775, 0.05157315611961435, -0.05014054801650956, -0.13700193847309164, 0.06275986997815246, 0.056411051520596826, 0.059442382601669945, -0.2013961164663416, 0.07804955733314034, 0.003824982238689163, 0.17812682896638748, -0.10374111312701077, -0.11323466184587203, -0.072774561161183, 0.16131647949900907, 0.0389303291716506, -0.032430486001654484, 0.18461457663549674, -0.12523667509362224, -0.050592639139990826, 0.33315172151769284, -0.047310230387069406, 0.03380025775156549, 0.1532321624938765, -0.24878232642534936, -0.15780998191597764, 0.2044324072566433, 0.12697703346274183, 0.1076737043798947, -0.1198058786547216, 0.03743258839450227, -0.02524577814810833, 0.14932134483856094, 0.11570550955175499, 0.1203281774765766, 0.2753866517870519, 0.11982638990414925, -0.006449022545580863, 0.1062657511793077, -0.30309849721952115, -0.08823531598127524, -0.27692060104617083, -0.11801761729913748, -0.11861934211700544, 0.04623633662246351, -0.08557938993097375, -0.16963075394513177, 0.43463423529823053, 0.1181293504549282, 0.1896358109384653, -0.004668211220901032, 0.26927766787101987, 0.0663196340181338, 0.10686247901357405, 0.04455695916959619, 0.2876025143949712, 0.26175943504996046, 0.1872768526721257, -0.23561270327734776, -0.0187373221241182, 0.025749931163459895] |
711.3267 | Preparation and magnetoresistance of Ag 2+x Se thin films deposited via
Pulsed Laser Deposition | The preparation of Ag 2+x Se thin films with thicknesses between 4 nm and
3000 nm by pulsed laser deposition on single crystalline NaCl and MgO
substrates is reported. The films are perfectly dense and show a good lateral
uniformity with a small number of defects. The microstructure of the films
corresponds to a nanoparquet, being composed of two different phases of silver
selenide. One phase is identified as the Naumannite low temperature phase of
silver selenide, the structure of the other phase has not been reported in
detail before and probably represents a metastable phase. Silver-rich films
contain silver precipitates with typical sizes on the nanoscale. Their presence
and their size appears to be responsible for the large and linear
magnetoresistance effect of silver-rich silver selenide.
| cond-mat.other cond-mat.mtrl-sci | the preparation of ag 2x se thin films with thicknesses between 4 nm and 3000 nm by pulsed laser deposition on single crystalline nacl and mgo substrates is reported the films are perfectly dense and show a good lateral uniformity with a small number of defects the microstructure of the films corresponds to a nanoparquet being composed of two different phases of silver selenide one phase is identified as the naumannite low temperature phase of silver selenide the structure of the other phase has not been reported in detail before and probably represents a metastable phase silverrich films contain silver precipitates with typical sizes on the nanoscale their presence and their size appears to be responsible for the large and linear magnetoresistance effect of silverrich silver selenide | [['the', 'preparation', 'of', 'ag', '2x', 'se', 'thin', 'films', 'with', 'thicknesses', 'between', '4', 'nm', 'and', '3000', 'nm', 'by', 'pulsed', 'laser', 'deposition', 'on', 'single', 'crystalline', 'nacl', 'and', 'mgo', 'substrates', 'is', 'reported', 'the', 'films', 'are', 'perfectly', 'dense', 'and', 'show', 'a', 'good', 'lateral', 'uniformity', 'with', 'a', 'small', 'number', 'of', 'defects', 'the', 'microstructure', 'of', 'the', 'films', 'corresponds', 'to', 'a', 'nanoparquet', 'being', 'composed', 'of', 'two', 'different', 'phases', 'of', 'silver', 'selenide', 'one', 'phase', 'is', 'identified', 'as', 'the', 'naumannite', 'low', 'temperature', 'phase', 'of', 'silver', 'selenide', 'the', 'structure', 'of', 'the', 'other', 'phase', 'has', 'not', 'been', 'reported', 'in', 'detail', 'before', 'and', 'probably', 'represents', 'a', 'metastable', 'phase', 'silverrich', 'films', 'contain', 'silver', 'precipitates', 'with', 'typical', 'sizes', 'on', 'the', 'nanoscale', 'their', 'presence', 'and', 'their', 'size', 'appears', 'to', 'be', 'responsible', 'for', 'the', 'large', 'and', 'linear', 'magnetoresistance', 'effect', 'of', 'silverrich', 'silver', 'selenide']] | [-0.10850081350313635, 0.2377338615753423, -0.008041214879329612, -0.07432690649425869, 0.021423307237995227, -0.15290263099823057, 0.047301548279488716, 0.46923015528638673, -0.21706700447674204, -0.34474694559244606, 0.05896664787428378, -0.32175613553603977, -0.06660442460873504, 0.1905033040348804, -0.0031736755546757844, 0.0430956045165658, -0.04576792221940387, -0.09004628564783834, -0.09091062893772997, -0.23423101733120658, 0.2417819250272814, 0.027031784791525876, 0.3575009249625879, 0.07012529803318827, 0.035899662212052236, -0.07708336874024897, 0.1306210064430479, 0.033554191356600545, -0.14549369273004045, 0.03773104218856954, 0.2271358669939928, -0.09606319322341644, 0.17914856519981673, -0.4854365606012383, -0.20840830107719252, 0.02008990785614559, 0.08670990841985657, 0.10086362666002763, -0.11470470994491343, -0.24153601359935645, 0.12238325046780481, -0.08089002380829032, -0.11292226052638597, -0.0020970045282492204, -0.012763678921553178, 0.01447981835638241, -0.19329295741352517, 0.05770129365922232, 0.046939375348449726, 0.1038562008993685, -0.05935244053238776, -0.1691459317661337, -0.12856874664548815, 0.04061696551952178, 0.023852362490554408, 0.0076306054171750215, 0.20501070083838288, -0.08756078055840198, -0.06794377194615309, 0.3714960229439222, -0.03710367545727792, -0.03750076946969015, 0.2027705584508859, -0.18747689070880916, -0.009096170220963233, 0.2285863564433, 0.0843132905627987, 0.15004777196393446, -0.12106399392998754, 0.048808173518069466, 0.007962038513363861, 0.29339824082818244, 0.15773401140969823, 0.0904295054809531, 0.2193061229545714, 0.2764204562167501, -0.037007891891024464, 0.19872815976614072, -0.1594197729685745, 0.015036810817938994, -0.16032598183369187, -0.21814582370622917, -0.19654586321363846, 0.0454522698940908, -0.14323005570421501, -0.25973658231124885, 0.3609829993589168, 0.04589839767933467, 0.18862525349467751, -0.08873712517343825, 0.2008250924811615, 0.008643343801443593, 0.11153056499230243, -0.034502930980368815, 0.2568666084510524, 0.17272338648402413, 0.12011531748010576, -0.20813970286701997, 0.14830941968877626, -0.0262094336747366] |
711.3268 | Nucleus-nucleus cross-sections and long-range correlations with a local
supercritical pomeron | Nucleus-nucleus scattering is studied in the local Reggeon Field Theory in
the quasi-classical approximation with non-eikonal boundary conditions
corresponding to the Glauber picture at low energies. Comparison with the
commonly used eikonal boundary conditions shows that the new conditions make
both the action and nucleus-nucleus total cross-sections lower by $3\div 5$ %.
They also substantially change the behaviour of the solutions of the equations
of motion at low energies. Using expressions for the double inclusive
cross-sections derived earlier in the Reggeon Field Theory \cite{CM} long-range
rapidity correlations are calculated for the RHIC and LHC energies.
| hep-ph | nucleusnucleus scattering is studied in the local reggeon field theory in the quasiclassical approximation with noneikonal boundary conditions corresponding to the glauber picture at low energies comparison with the commonly used eikonal boundary conditions shows that the new conditions make both the action and nucleusnucleus total crosssections lower by 3div 5 they also substantially change the behaviour of the solutions of the equations of motion at low energies using expressions for the double inclusive crosssections derived earlier in the reggeon field theory citecm longrange rapidity correlations are calculated for the rhic and lhc energies | [['nucleusnucleus', 'scattering', 'is', 'studied', 'in', 'the', 'local', 'reggeon', 'field', 'theory', 'in', 'the', 'quasiclassical', 'approximation', 'with', 'noneikonal', 'boundary', 'conditions', 'corresponding', 'to', 'the', 'glauber', 'picture', 'at', 'low', 'energies', 'comparison', 'with', 'the', 'commonly', 'used', 'eikonal', 'boundary', 'conditions', 'shows', 'that', 'the', 'new', 'conditions', 'make', 'both', 'the', 'action', 'and', 'nucleusnucleus', 'total', 'crosssections', 'lower', 'by', '3div', '5', 'they', 'also', 'substantially', 'change', 'the', 'behaviour', 'of', 'the', 'solutions', 'of', 'the', 'equations', 'of', 'motion', 'at', 'low', 'energies', 'using', 'expressions', 'for', 'the', 'double', 'inclusive', 'crosssections', 'derived', 'earlier', 'in', 'the', 'reggeon', 'field', 'theory', 'citecm', 'longrange', 'rapidity', 'correlations', 'are', 'calculated', 'for', 'the', 'rhic', 'and', 'lhc', 'energies']] | [-0.07365675202460699, 0.18116742063448915, -0.1537700265155284, 0.17639297634107812, 0.016202219729361835, -0.07813355600040767, -0.0627505982079373, 0.33832715988479634, -0.19936508573691852, -0.26888655501628117, -0.03096784075336551, -0.29801688295718964, -0.03125969086703594, 0.14581084126226043, 0.05820500828646204, 0.085775162258576, 0.07992315386241723, 0.05846994939029858, -0.08015217741585827, -0.2102653595008036, 0.30784888879736505, 0.06658385901321326, 0.2632263204263103, 0.17058064538599943, 0.03711184521796562, 0.10007463645262604, 0.022427628257422037, 0.02698581427916564, -0.1757559883937907, 0.07529352150697222, 0.27398111858224916, -0.014323714079074961, 0.13550309427282822, -0.4595172584898049, -0.16461373050196437, 0.0232435448435686, 0.11607728289159876, 0.12420506914576857, -0.0003216063969277887, -0.2566114761516131, 0.0732902949938791, -0.18637023982842282, -0.18638138516595767, -0.04342052467187406, 0.005914311978705628, 0.038660028083149785, -0.288281622012296, 0.1102538210786103, -0.03640852630594044, 0.06582027635667273, -0.12603944530510294, -0.16806947202571937, -0.07259939054167398, 0.03490310271460843, 0.07349152023333215, 0.050281456266079216, 0.13098161094771918, -0.19682313293100945, -0.13410210098710754, 0.361079248369381, -0.03234039296105664, -0.17160657362922305, 0.19048314221013682, -0.21181274089781987, -0.1161011073898564, 0.19738865984223222, 0.14765137171633141, 0.1315812716781292, -0.22973446002961087, 0.12878392285214216, 0.0411771491735733, 0.08372298561747596, 0.12613524755422947, 0.04676237526620107, 0.10774620408968379, 0.10826918317545806, -0.006812229512199279, 0.06605292303908256, -0.09640376985474285, -0.1503845964888892, -0.4112501630499478, -0.043865225362961974, -0.08563194108716342, 0.013278382700136912, -0.12392658309639251, -0.11651794371064952, 0.325718512908826, 0.11901140812864547, 0.2352082871992181, 0.04682543657479748, 0.28375188719921857, 0.200962774530654, 0.04600843134266074, 0.0810904489049027, 0.30678870849391465, 0.19817882163640393, 0.18646367063485486, -0.24773607277862167, 0.026451982669338275, 0.1304240702971896] |
711.3269 | An Improved Procedure for Selecting the Profiles of Perfectly Matched
Layers | The perfectly matched layers (PMLs), as a boundary termination over an
unbounded spatial domain, are widely used in numerical simulations of wave
propagation problems. Given a set of discretization parameters, a procedure to
select the PML profiles based on minimizing the discrete reflectivity is
established for frequency domain simulations. We, by extending the function
class and adopting a direct search method, improve the former procedure for
traveling waves.
| math.NA | the perfectly matched layers pmls as a boundary termination over an unbounded spatial domain are widely used in numerical simulations of wave propagation problems given a set of discretization parameters a procedure to select the pml profiles based on minimizing the discrete reflectivity is established for frequency domain simulations we by extending the function class and adopting a direct search method improve the former procedure for traveling waves | [['the', 'perfectly', 'matched', 'layers', 'pmls', 'as', 'a', 'boundary', 'termination', 'over', 'an', 'unbounded', 'spatial', 'domain', 'are', 'widely', 'used', 'in', 'numerical', 'simulations', 'of', 'wave', 'propagation', 'problems', 'given', 'a', 'set', 'of', 'discretization', 'parameters', 'a', 'procedure', 'to', 'select', 'the', 'pml', 'profiles', 'based', 'on', 'minimizing', 'the', 'discrete', 'reflectivity', 'is', 'established', 'for', 'frequency', 'domain', 'simulations', 'we', 'by', 'extending', 'the', 'function', 'class', 'and', 'adopting', 'a', 'direct', 'search', 'method', 'improve', 'the', 'former', 'procedure', 'for', 'traveling', 'waves']] | [-0.09332822400200017, 0.03515692932641661, -0.08254151290063472, 0.04647380265284001, -0.12960357431267552, -0.07588182640628315, 0.06601305764428723, 0.4262504021582358, -0.30813538310501504, -0.28437256183036985, 0.14727361616849735, -0.22354345698840916, -0.1039378566749613, 0.22904951238717117, 0.006419458604582092, 0.1394053280040252, 0.0676221992368536, -0.03955897195812534, -0.07489111025215071, -0.17136057912070743, 0.2943845829405986, 0.03702172209673068, 0.31029099413632033, -0.017077122253420597, 0.09853067717460148, 0.03363333613036529, -0.05562893010210246, 0.033793682177715445, -0.13495134227388703, 0.07086453747059054, 0.25126869845039707, 0.08478342605282224, 0.29459250753279775, -0.4388116369407405, -0.30698350329390345, 0.05460025456405299, 0.15937221866881693, 0.11520961703076062, -0.044426993369330266, -0.2942987286403556, 0.08196966041235582, -0.11588490032590926, -0.15368475087041802, 0.006017919698291842, -0.05540073706823237, 0.05819046546650283, -0.33349409044775014, 0.059298593578312325, -0.003269719206454123, 0.024347736784393954, -0.08671520538765061, -0.08057819557485774, -0.025229546470868894, 0.09964440419571474, 0.014010974147822708, 0.029295613667379844, 0.06880914368529749, -0.0710613954510978, -0.11159246850772486, 0.3414998281719711, -0.06165809447274489, -0.2989437416921753, 0.19652187853353098, -0.06030927188411999, -0.002347714014296584, 0.15398796120494165, 0.1860763305072289, 0.20177018378779074, -0.136098556472194, 0.04696459942822591, -0.05329826086402617, 0.1904671397060156, 0.12599068298689364, -0.0421552666777964, 0.1500944590798634, 0.1921903824858258, 0.11417471594861983, 0.1548170745235813, -0.08271289185572908, -0.06937722541282282, -0.3248315706903882, -0.08733429168077077, -0.22085902831681511, -0.07784094173150473, -0.11181050190562554, -0.23388732331531012, 0.4076712083461804, 0.1315392890075386, 0.147796734195093, 0.07274024059776873, 0.30640817715731616, 0.16619939369047643, 0.03678268347592915, 0.08945883072994869, 0.20673540275653496, 0.14026139295139514, 0.0819603327442618, -0.2020899814704214, 0.05343791317906888, 0.12167171390234109] |
711.327 | Observing Zitterbewegung in Ultracold Atoms | We propose an optical lattice scheme which would permit the experimental
observation of Zitterbewegung (ZB) with ultracold, neutral atoms. A four-level
"tripod" variant of the usual setup for stimulated Raman adiabatic passage
(STIRAP) has been proposed for generating non-Abelian gauge fields [1].
Dirac-like Hamiltonians, which exhibit ZB, are simple examples of such
non-Abelian gauge fields; we show how a variety of them can arise, and how ZB
can be observed, in a tripod system. We predict that the ZB should occur at
experimentally accessible frequencies and amplitudes.
| cond-mat.mes-hall | we propose an optical lattice scheme which would permit the experimental observation of zitterbewegung zb with ultracold neutral atoms a fourlevel tripod variant of the usual setup for stimulated raman adiabatic passage stirap has been proposed for generating nonabelian gauge fields 1 diraclike hamiltonians which exhibit zb are simple examples of such nonabelian gauge fields we show how a variety of them can arise and how zb can be observed in a tripod system we predict that the zb should occur at experimentally accessible frequencies and amplitudes | [['we', 'propose', 'an', 'optical', 'lattice', 'scheme', 'which', 'would', 'permit', 'the', 'experimental', 'observation', 'of', 'zitterbewegung', 'zb', 'with', 'ultracold', 'neutral', 'atoms', 'a', 'fourlevel', 'tripod', 'variant', 'of', 'the', 'usual', 'setup', 'for', 'stimulated', 'raman', 'adiabatic', 'passage', 'stirap', 'has', 'been', 'proposed', 'for', 'generating', 'nonabelian', 'gauge', 'fields', '1', 'diraclike', 'hamiltonians', 'which', 'exhibit', 'zb', 'are', 'simple', 'examples', 'of', 'such', 'nonabelian', 'gauge', 'fields', 'we', 'show', 'how', 'a', 'variety', 'of', 'them', 'can', 'arise', 'and', 'how', 'zb', 'can', 'be', 'observed', 'in', 'a', 'tripod', 'system', 'we', 'predict', 'that', 'the', 'zb', 'should', 'occur', 'at', 'experimentally', 'accessible', 'frequencies', 'and', 'amplitudes']] | [-0.168704886257049, 0.2983333780605884, -0.06416030497900371, 0.06187968360709733, -0.07326938711299465, -0.2162677614157484, 0.040421506529138694, 0.4832529352828004, -0.2341708856575919, -0.23286819590748042, -0.027288481755042983, -0.21435224789398155, -0.16839539934078168, 0.22266968743254742, -0.006359559082394016, 0.052665826232954, 0.08694939473750947, 0.03609331194900148, 0.0010561306034910611, -0.22495172521495527, 0.23244373075230496, -0.02575303917622258, 0.29231835572027615, 0.025824699031681508, 0.08889809022282903, -0.0005231140845123379, 0.10283237496316004, -0.048951256881071915, -0.1009243200403463, 0.06113833987325344, 0.23181668837051625, 0.026226815914778018, 0.14609996726115546, -0.4568230953367277, -0.21526317456041344, 0.09091865609603367, 0.19742906852036543, 0.24154827658665076, -0.08677517265167045, -0.33584149153474935, 0.011221126888760891, -0.18698633547829485, -0.12558435427356812, -0.17341760621705873, 0.009610368886256012, -0.03362252867256088, -0.27589592143582803, 0.04285532886954559, 0.021701721487909383, 0.03806783686440181, -0.05822305828225852, -0.027955780153687316, 0.0005484563084426282, 0.015192672915371328, -0.022973424310785258, -0.014129380117459544, 0.15927080433794308, -0.0745593957367471, -0.22706365270604348, 0.4780197034445431, -0.10390501559562125, -0.1281027620679688, 0.19753736593685617, -0.14677397588310742, -0.10293986006564963, 0.1270169859388094, 0.12862901353202333, 0.08948555063381362, -0.09535866062659984, 0.1038840057411306, -0.08764829531568906, 0.11604564770087386, 0.11278500625778032, 0.12355581628715341, 0.20373459182808112, 0.11010749633798654, -0.012232406749978832, 0.1161672897280954, -0.11253608521053984, -0.07794421206860022, -0.2869723032967284, -0.1618643485995855, -0.1782576718779773, 0.11095488550484009, -0.0043677368958014995, -0.12188590578092583, 0.4286572207502627, 0.15025814704532767, 0.17080020702219215, -0.06366896317822152, 0.2083254362210289, 0.17640681023142118, 0.05543813123314203, -0.029627097160394848, 0.2646878689230452, 0.10984729291421585, 0.048190840327277266, -0.25792062999787685, -0.05997398226982218, 0.03917050818998324] |
711.3271 | Computer model validation with functional output | A key question in evaluation of computer models is Does the computer model
adequately represent reality? A six-step process for computer model validation
is set out in Bayarri et al. [Technometrics 49 (2007) 138--154] (and briefly
summarized below), based on comparison of computer model runs with field data
of the process being modeled. The methodology is particularly suited to
treating the major issues associated with the validation process: quantifying
multiple sources of error and uncertainty in computer models; combining
multiple sources of information; and being able to adapt to different, but
related scenarios. Two complications that frequently arise in practice are the
need to deal with highly irregular functional data and the need to acknowledge
and incorporate uncertainty in the inputs. We develop methodology to deal with
both complications. A key part of the approach utilizes a wavelet
representation of the functional data, applies a hierarchical version of the
scalar validation methodology to the wavelet coefficients, and transforms back,
to ultimately compare computer model output with field output. The generality
of the methodology is only limited by the capability of a combination of
computational tools and the appropriateness of decompositions of the sort
(wavelets) employed here. The methods and analyses we present are illustrated
with a test bed dynamic stress analysis for a particular engineering system.
| stat.ME | a key question in evaluation of computer models is does the computer model adequately represent reality a sixstep process for computer model validation is set out in bayarri et al technometrics 49 2007 138154 and briefly summarized below based on comparison of computer model runs with field data of the process being modeled the methodology is particularly suited to treating the major issues associated with the validation process quantifying multiple sources of error and uncertainty in computer models combining multiple sources of information and being able to adapt to different but related scenarios two complications that frequently arise in practice are the need to deal with highly irregular functional data and the need to acknowledge and incorporate uncertainty in the inputs we develop methodology to deal with both complications a key part of the approach utilizes a wavelet representation of the functional data applies a hierarchical version of the scalar validation methodology to the wavelet coefficients and transforms back to ultimately compare computer model output with field output the generality of the methodology is only limited by the capability of a combination of computational tools and the appropriateness of decompositions of the sort wavelets employed here the methods and analyses we present are illustrated with a test bed dynamic stress analysis for a particular engineering system | [['a', 'key', 'question', 'in', 'evaluation', 'of', 'computer', 'models', 'is', 'does', 'the', 'computer', 'model', 'adequately', 'represent', 'reality', 'a', 'sixstep', 'process', 'for', 'computer', 'model', 'validation', 'is', 'set', 'out', 'in', 'bayarri', 'et', 'al', 'technometrics', '49', '2007', '138154', 'and', 'briefly', 'summarized', 'below', 'based', 'on', 'comparison', 'of', 'computer', 'model', 'runs', 'with', 'field', 'data', 'of', 'the', 'process', 'being', 'modeled', 'the', 'methodology', 'is', 'particularly', 'suited', 'to', 'treating', 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711.3272 | Unparticles in Gluodynamics | The virtual effects of unparticle physics on the two-gluon jets production
are explored for CERN LHC. It is found that depending on the scale dimension,
unparticles can give rise to substantial enhancements in the transverse
momentum and pseudo-rapidity distributions of hadronic cross sections, up to a
factor of four-orders of magnitude.
| hep-ph | the virtual effects of unparticle physics on the twogluon jets production are explored for cern lhc it is found that depending on the scale dimension unparticles can give rise to substantial enhancements in the transverse momentum and pseudorapidity distributions of hadronic cross sections up to a factor of fourorders of magnitude | [['the', 'virtual', 'effects', 'of', 'unparticle', 'physics', 'on', 'the', 'twogluon', 'jets', 'production', 'are', 'explored', 'for', 'cern', 'lhc', 'it', 'is', 'found', 'that', 'depending', 'on', 'the', 'scale', 'dimension', 'unparticles', 'can', 'give', 'rise', 'to', 'substantial', 'enhancements', 'in', 'the', 'transverse', 'momentum', 'and', 'pseudorapidity', 'distributions', 'of', 'hadronic', 'cross', 'sections', 'up', 'to', 'a', 'factor', 'of', 'fourorders', 'of', 'magnitude']] | [-0.08507123946212232, 0.2857073322031647, -0.11495712098665535, 0.17549381597200409, -0.05190681464038789, -0.07270431366283446, -0.05864811155945063, 0.32634848207235334, -0.1919161529093981, -0.31546513447538016, -0.08963576387846843, -0.30332575358450414, 0.04646709810011089, 0.19471982456743717, 0.08859670157544315, 0.06229176054475829, 0.0736638375557959, 0.009449390089139342, -0.06058339843060821, -0.26129069053567944, 0.34466217568144203, 0.09195450909435748, 0.23634264342486858, 0.24308080055750905, 0.1045929416269064, 0.0067816245555877685, -0.06432036978541873, -0.02405016387347132, -0.13070884297208976, 0.0814116483554244, 0.24269345832057299, 0.02833108023740351, 0.10667977777397027, -0.32949342895299194, -0.09430971936322749, 0.12691530657932162, 0.1711466035619378, 0.04453101369552314, -0.006225045188330114, -0.26497879412025216, 0.060334992688149215, -0.24789217790588736, -0.09993473332375288, -0.07819480816833675, 0.04446676798164845, -0.062108688466250894, -0.285026878118515, 0.09310121981427073, -0.04922516663558781, 0.03017164130229503, 0.016475236020050944, -0.20436930818483234, -0.07005927663296461, 0.012018428340088576, 0.1631941584451124, 0.06406574163585901, 0.21900143805891276, -0.22240997744724156, -0.23333059195429087, 0.3725272315647453, -0.013376473616808653, -0.1961239593103528, 0.17480111757293343, -0.24870275994762778, -0.09790630477946252, 0.21232893988955767, 0.3509116715192795, 0.02897246282547712, -0.136937361122109, 0.12172696635010652, 0.0014695038832724095, 0.1625483819236979, 0.10113733085803688, 0.11076995448209345, 0.13968480492010713, 0.19552644040435552, 0.029354178374633194, 0.06842388901859522, -0.1221604659082368, -0.09839232668280601, -0.4369746974110603, -0.14749570012092592, -0.07181329326704144, 0.09764023324474692, -0.07630466649279696, -0.11023142158752307, 0.3996988633088768, 0.09818172539118677, 0.2997453698096797, -0.03485566741786897, 0.30279684111475946, 0.11553859928622842, 0.15046922277659178, 0.06726456754840911, 0.34958158813416956, 0.15130048163235188, 0.17467177368700504, -0.1847287589032203, 0.06872161047533154, 0.07374707324430346] |
711.3273 | Magnetogenesis, spectator fields and CMB signatures | A viable class of magnetogenesis models can be constructed by coupling the
kinetic term of the hypercharge to a spectator field whose dynamics does not
affect the inflationary evolution. The magnetic power spectrum is explicitly
related to the power spectrum of (adiabatic) curvature inhomogeneities when the
quasi-de Sitter stage of expansion is driven by a single scalar degree of
freedom. Depending upon the value of the slow-roll parameters, the amplitude of
smoothed magnetic fields over a (comoving) Mpc scale can be as large as
0.01--0.1 nG at the epoch of the gravitational collapse of the protogalaxy. The
contributions of the magnetic fields to the Sachs-Wolfe plateau and to the
temperature autocorrelations in the Doppler region compare favourably with the
constraints imposed by galactic magnetogenesis. Stimulating lessons are drawn
on the interplay between magnetogenesis models and their possible CMB
signatures.
| astro-ph gr-qc hep-ph hep-th | a viable class of magnetogenesis models can be constructed by coupling the kinetic term of the hypercharge to a spectator field whose dynamics does not affect the inflationary evolution the magnetic power spectrum is explicitly related to the power spectrum of adiabatic curvature inhomogeneities when the quaside sitter stage of expansion is driven by a single scalar degree of freedom depending upon the value of the slowroll parameters the amplitude of smoothed magnetic fields over a comoving mpc scale can be as large as 00101 ng at the epoch of the gravitational collapse of the protogalaxy the contributions of the magnetic fields to the sachswolfe plateau and to the temperature autocorrelations in the doppler region compare favourably with the constraints imposed by galactic magnetogenesis stimulating lessons are drawn on the interplay between magnetogenesis models and their possible cmb signatures | [['a', 'viable', 'class', 'of', 'magnetogenesis', 'models', 'can', 'be', 'constructed', 'by', 'coupling', 'the', 'kinetic', 'term', 'of', 'the', 'hypercharge', 'to', 'a', 'spectator', 'field', 'whose', 'dynamics', 'does', 'not', 'affect', 'the', 'inflationary', 'evolution', 'the', 'magnetic', 'power', 'spectrum', 'is', 'explicitly', 'related', 'to', 'the', 'power', 'spectrum', 'of', 'adiabatic', 'curvature', 'inhomogeneities', 'when', 'the', 'quaside', 'sitter', 'stage', 'of', 'expansion', 'is', 'driven', 'by', 'a', 'single', 'scalar', 'degree', 'of', 'freedom', 'depending', 'upon', 'the', 'value', 'of', 'the', 'slowroll', 'parameters', 'the', 'amplitude', 'of', 'smoothed', 'magnetic', 'fields', 'over', 'a', 'comoving', 'mpc', 'scale', 'can', 'be', 'as', 'large', 'as', '00101', 'ng', 'at', 'the', 'epoch', 'of', 'the', 'gravitational', 'collapse', 'of', 'the', 'protogalaxy', 'the', 'contributions', 'of', 'the', 'magnetic', 'fields', 'to', 'the', 'sachswolfe', 'plateau', 'and', 'to', 'the', 'temperature', 'autocorrelations', 'in', 'the', 'doppler', 'region', 'compare', 'favourably', 'with', 'the', 'constraints', 'imposed', 'by', 'galactic', 'magnetogenesis', 'stimulating', 'lessons', 'are', 'drawn', 'on', 'the', 'interplay', 'between', 'magnetogenesis', 'models', 'and', 'their', 'possible', 'cmb', 'signatures']] | [-0.163310493861841, 0.2253390879122366, -0.07676969767420841, 0.07772163275073168, -0.1187911411854539, -0.06573133662396627, -0.04269290041838431, 0.3023469092042969, -0.2618425571218991, -0.324682661700699, 0.06592350362769911, -0.21830608003618693, -0.06057609300122416, 0.17083334435521216, 0.03346690960649716, -0.021611686765799207, -0.01966726762601074, 0.024751226246866178, -0.04206639953776725, -0.2540053446046847, 0.34987869172812636, 0.17014107602588135, 0.23058765354103966, 0.007446360439330125, 0.08107753984154606, -0.097452725075259, -0.006854862658132752, 0.029880065246478474, -0.14173953339671916, 0.004140129774346572, 0.15855587195679788, 0.10810557136097722, 0.22802745595761983, -0.4138695764750671, -0.26075071758396334, 0.14428162334232236, 0.14230222421323063, 0.12814758198416168, -0.005770440408524475, -0.28821265328425927, 0.02338070937318446, -0.14235351582172096, -0.12115101478390879, -0.04086427182367862, -0.017588395113130678, -0.0011837356623342569, -0.2948963732991314, 0.1338896060483061, 0.010010090865958617, 0.0161748476671524, -0.06217906987562561, -0.06425032489296557, -0.07410652279224006, 0.05803919873278247, 0.130537581707103, 0.05427254627880861, 0.1968455610381399, -0.19874727699852032, -0.08899133493445426, 0.3875459713070727, -0.12961843975303736, -0.11258967871369004, 0.09786479380450767, -0.15222511466311142, -0.11810349706868581, 0.12357950239549491, 0.15636097619363623, 0.09802387584785582, -0.1111013878312962, 0.15616879998053015, 0.09090293593966006, 0.17828597236933896, 0.07035315254193952, 0.03558951657158222, 0.33284867168973675, 0.09172788636738823, 0.0168066674327518, 0.10480926427554688, -0.1011335288070598, -0.09307349459879542, -0.34984106738321324, -0.03985216975942415, -0.1825232365898949, 0.08167375904424602, -0.17474391157282415, -0.1724094194594583, 0.44241156329219933, 0.1485311673617446, 0.19223594515443707, 0.03417120727529521, 0.3003841736119428, 0.10490774339912526, 0.07950380197793191, 0.057173807488874996, 0.3402242048328622, 0.17484696659514104, 0.1325578288394596, -0.28312953436963273, 0.012072512451157296, 0.021289031051447707] |
711.3274 | Microsystem Product Development | Over the last decade the successful design and fabrication of complex MEMS
(MicroElectroMechanical Systems), optical circuits and ASICs have been
demonstrated. Packaging and integration processes have lagged behind MEMS
research but are rapidly maturing. As packaging processes evolve, a new
challenge presents itself, microsystem product development. Product development
entails the maturation of the design and all the processes needed to
successfully produce a product. Elements such as tooling design, fixtures,
gages, testers, inspection, work instructions, process planning, etc., are
often overlooked as MEMS engineers concentrate on design, fabrication and
packaging processes. Thorough, up-front planning of product development efforts
is crucial to the success of any project.
| cs.OH | over the last decade the successful design and fabrication of complex mems microelectromechanical systems optical circuits and asics have been demonstrated packaging and integration processes have lagged behind mems research but are rapidly maturing as packaging processes evolve a new challenge presents itself microsystem product development product development entails the maturation of the design and all the processes needed to successfully produce a product elements such as tooling design fixtures gages testers inspection work instructions process planning etc are often overlooked as mems engineers concentrate on design fabrication and packaging processes thorough upfront planning of product development efforts is crucial to the success of any project | [['over', 'the', 'last', 'decade', 'the', 'successful', 'design', 'and', 'fabrication', 'of', 'complex', 'mems', 'microelectromechanical', 'systems', 'optical', 'circuits', 'and', 'asics', 'have', 'been', 'demonstrated', 'packaging', 'and', 'integration', 'processes', 'have', 'lagged', 'behind', 'mems', 'research', 'but', 'are', 'rapidly', 'maturing', 'as', 'packaging', 'processes', 'evolve', 'a', 'new', 'challenge', 'presents', 'itself', 'microsystem', 'product', 'development', 'product', 'development', 'entails', 'the', 'maturation', 'of', 'the', 'design', 'and', 'all', 'the', 'processes', 'needed', 'to', 'successfully', 'produce', 'a', 'product', 'elements', 'such', 'as', 'tooling', 'design', 'fixtures', 'gages', 'testers', 'inspection', 'work', 'instructions', 'process', 'planning', 'etc', 'are', 'often', 'overlooked', 'as', 'mems', 'engineers', 'concentrate', 'on', 'design', 'fabrication', 'and', 'packaging', 'processes', 'thorough', 'upfront', 'planning', 'of', 'product', 'development', 'efforts', 'is', 'crucial', 'to', 'the', 'success', 'of', 'any', 'project']] | [-0.108503469703104, 0.1100323293347105, -0.013256847498200412, -0.04459084520373647, -0.1337365244893041, -0.15572836549671473, -0.024370310213065374, 0.44953561426614813, -0.2115262752302202, -0.3223497667701317, 0.2129546865153144, -0.2183261347829171, -0.18210154640947399, 0.2711502854835312, -0.11878991093187821, 0.142959851617837, 0.11545222628101671, -0.09752100163121831, -0.01673431958309111, -0.21897612743185096, 0.23265948130272524, 0.10799287579391363, 0.33073296585067546, 0.03312329571465698, 0.10850269772674677, 0.01028244761873107, -0.054892347327624075, -0.1049872566682269, -0.1012718106800128, 0.14968907908659498, 0.3459627095583545, 0.19332773352858945, 0.3701158345343088, -0.5090572808886755, -0.21040886539508993, 0.07909598669151442, 0.14188623454702912, 0.024944448448225576, -0.0901065179166595, -0.2281238367464745, -0.019659440240708512, -0.2195854896409349, -0.09937861546893816, -0.11350756590166744, 0.0628055117997991, 0.01576576929952387, -0.18675821209996324, -0.11262195239739739, 0.052539224231193934, 0.08688564765056209, -0.006491298156895868, -0.16007553638872812, 0.024207877878205112, 0.18712349954272076, -0.003529112770953567, -0.011828777722944066, 0.2653715157890165, -0.10992723624309841, -0.19432836552238408, 0.37032407249833615, 0.0858008167003545, -0.145648567615525, 0.19127062514846055, -0.0674857269282857, -0.15549910752946194, 0.1189963890097921, 0.24655046546392423, 0.06277732920991082, -0.2160757202578199, 0.04606451421156789, 0.14320687680364638, 0.13348133569003418, 0.06578177786080765, 0.04652700588911034, 0.21233394763098573, 0.32434974284403306, 0.03185100014813526, 0.10021816771301739, 0.007691561760609302, -0.09528648906347852, -0.23590780780562814, -0.2405768704846642, -0.08574010560592145, 0.06026874304933579, -0.008136633210151043, -0.22333812622687305, 0.340006720872139, 0.14640643279823773, 0.06876788856154133, 0.012152629041218391, 0.36159375557711104, 0.046195790111219055, 0.18336061020996772, -0.0059554425709582165, 0.1994962527346358, 0.09128935925688876, 0.1699970892338381, -0.12574581179398833, 0.15976401212853644, -0.037127678732844595] |
711.3275 | Parasitic Effects Reduction for Wafer-Level Packaging of RF-Mems | In RF-MEMS packaging, next to the protection of movable structures,
optimization of package electrical performance plays a very important role. In
this work, a wafer-level packaging process has been investigated and optimized
in order to minimize electrical parasitic effects. The RF-MEMS package concept
used is based on a wafer-level bonding of a capping silicon substrate to an
RF-MEMS wafer. The capping silicon substrate resistivity, substrate thickness
and the geometry of through-substrate electrical interconnect vias have been
optimized using finite-element electromagnetic simulations (Ansoft HFSS). Test
structures for electrical characterization have been designed and after their
fabrication, measurement results will be compared with simulations.
| cs.OH | in rfmems packaging next to the protection of movable structures optimization of package electrical performance plays a very important role in this work a waferlevel packaging process has been investigated and optimized in order to minimize electrical parasitic effects the rfmems package concept used is based on a waferlevel bonding of a capping silicon substrate to an rfmems wafer the capping silicon substrate resistivity substrate thickness and the geometry of throughsubstrate electrical interconnect vias have been optimized using finiteelement electromagnetic simulations ansoft hfss test structures for electrical characterization have been designed and after their fabrication measurement results will be compared with simulations | [['in', 'rfmems', 'packaging', 'next', 'to', 'the', 'protection', 'of', 'movable', 'structures', 'optimization', 'of', 'package', 'electrical', 'performance', 'plays', 'a', 'very', 'important', 'role', 'in', 'this', 'work', 'a', 'waferlevel', 'packaging', 'process', 'has', 'been', 'investigated', 'and', 'optimized', 'in', 'order', 'to', 'minimize', 'electrical', 'parasitic', 'effects', 'the', 'rfmems', 'package', 'concept', 'used', 'is', 'based', 'on', 'a', 'waferlevel', 'bonding', 'of', 'a', 'capping', 'silicon', 'substrate', 'to', 'an', 'rfmems', 'wafer', 'the', 'capping', 'silicon', 'substrate', 'resistivity', 'substrate', 'thickness', 'and', 'the', 'geometry', 'of', 'throughsubstrate', 'electrical', 'interconnect', 'vias', 'have', 'been', 'optimized', 'using', 'finiteelement', 'electromagnetic', 'simulations', 'ansoft', 'hfss', 'test', 'structures', 'for', 'electrical', 'characterization', 'have', 'been', 'designed', 'and', 'after', 'their', 'fabrication', 'measurement', 'results', 'will', 'be', 'compared', 'with', 'simulations']] | [-0.10748939768706292, 0.055644594159554736, -0.040666701073878174, -0.07461904386443644, -0.057844756918009554, -0.19038927867215608, 0.00303353284402649, 0.4997085191973365, -0.23111031037849825, -0.3220631106028167, 0.09767358952967248, -0.28155618148053635, -0.1536821290057632, 0.2432601261367597, -0.03748409162358482, 0.14237577680240174, 0.04113121209942763, -0.13023052537942878, -0.04383643456080025, -0.1970127119433762, 0.19490501717525985, 0.1910797960152573, 0.37736668117750105, 0.12119306170261733, 0.08496441257804042, -0.016744993451872085, 0.029847998107497643, 0.03284054478206257, -0.14597755876176133, 0.10067820900331924, 0.2780099756679138, -0.04388680529900559, 0.26501285242340944, -0.5443369298988935, -0.19837340069381465, -0.008971302668647011, 0.08547083959721102, 0.08685879489536037, -0.11881590031184219, -0.19835695386449298, 0.12015008153209444, -0.16398704530542144, -0.06299220871106528, -0.05967304369752839, -0.045693403109908104, 0.0021690961969370887, -0.21127864075847672, -0.06303787532050421, 0.009013448459197684, 0.10641506408332008, -0.04254421760964364, -0.13520580736717375, -0.0642919525282808, 0.12269002143616355, -0.05098508415763303, -0.012051160663993346, 0.2962073931576555, -0.06585629602276379, -0.12578270342754255, 0.33134454046145523, 0.004121015335912678, -0.18309875876449122, 0.1328085307423763, -0.0455346865634812, -0.036775478346291746, 0.13436308738286837, 0.21166304085809406, 0.06692939285779058, -0.2117104328348126, 0.07883090966457205, 0.0858159450823349, 0.1956338866401722, 0.12308001575880859, 0.030140062379143615, 0.18719784314698068, 0.3168134578494447, 0.0016227388174715682, 0.18311388771358583, -0.12327196220244917, 0.028326972636698495, -0.19044912719435178, -0.22141422257565035, -0.16635007719223452, 0.06131522571160873, -0.04356761558020561, -0.21022628784862044, 0.385054406064498, 0.11915669495258296, 0.06261434646710606, -0.07290129406645082, 0.33676991383037946, 0.02282074648462752, 0.16948885242639128, -0.032986898300247175, 0.26253505541694044, 0.18858297619194087, 0.13819905654942194, -0.2488823144807305, 0.12884205327101864, -0.014360994332248696] |
711.3276 | Surface Conditioning Effect on Vacuum Microelectronics Components
Fabricated by Deep Reactive Ion Etching | Advances in material processing such as silicon micromachining are opening
the way to vacuum microelectronics. Two-dimensional vacuum components can be
fabricated using the microsystems processes. We developed such devices using a
single metal layer and silicon micromachining by DRIE. The latter technological
step has significant impact on the characteristics of the vacuum components.
This paper presents a brief summary of electron emission possibilities and the
design leading to the fabrication of a lateral field emission diode. First
measurement results and the aging of the devices are also discussed.
| cs.OH | advances in material processing such as silicon micromachining are opening the way to vacuum microelectronics twodimensional vacuum components can be fabricated using the microsystems processes we developed such devices using a single metal layer and silicon micromachining by drie the latter technological step has significant impact on the characteristics of the vacuum components this paper presents a brief summary of electron emission possibilities and the design leading to the fabrication of a lateral field emission diode first measurement results and the aging of the devices are also discussed | [['advances', 'in', 'material', 'processing', 'such', 'as', 'silicon', 'micromachining', 'are', 'opening', 'the', 'way', 'to', 'vacuum', 'microelectronics', 'twodimensional', 'vacuum', 'components', 'can', 'be', 'fabricated', 'using', 'the', 'microsystems', 'processes', 'we', 'developed', 'such', 'devices', 'using', 'a', 'single', 'metal', 'layer', 'and', 'silicon', 'micromachining', 'by', 'drie', 'the', 'latter', 'technological', 'step', 'has', 'significant', 'impact', 'on', 'the', 'characteristics', 'of', 'the', 'vacuum', 'components', 'this', 'paper', 'presents', 'a', 'brief', 'summary', 'of', 'electron', 'emission', 'possibilities', 'and', 'the', 'design', 'leading', 'to', 'the', 'fabrication', 'of', 'a', 'lateral', 'field', 'emission', 'diode', 'first', 'measurement', 'results', 'and', 'the', 'aging', 'of', 'the', 'devices', 'are', 'also', 'discussed']] | [-0.1020580896134065, 0.1429868382031352, -0.034625178393484515, -0.0970948117808968, -0.04694077845620499, -0.1506576596769843, -0.008021463998540474, 0.4608747782397338, -0.23867362174628812, -0.30148335613987665, 0.09893338362003719, -0.2800952295497568, -0.12675441887007433, 0.253087178888646, -0.052899821417998864, 0.10073439677944407, 0.03610917797777802, -0.133565837030553, -0.04888542940964478, -0.1548483874225481, 0.2743840904652395, 0.0928744731195779, 0.3434256300626492, 0.11654712292048233, 0.12448287083217027, -0.05230767223243178, 0.025218969602561134, -0.01734966425018766, -0.1182106975413097, 0.13879674588414756, 0.24789384532381187, 0.01765941325257617, 0.2612785994794897, -0.5079650135118176, -0.23416269285900687, 0.007611286694141613, 0.12703705075281588, 0.13066305933435532, -0.1667819722325393, -0.2724179251394658, 0.03160804803271524, -0.16321829976302318, -0.11728373025934244, -0.03709224284499545, -0.021768395306108603, 0.0008794780481945385, -0.18739972814298447, -0.040994388900964455, 0.020985101770334455, 0.019288555556241507, -0.011212693050104215, -0.11750875050413677, 0.006753560888517479, 0.10193543811857869, -0.009690575683304236, 0.006404344823253764, 0.28039574024627323, -0.13699049695754761, -0.15183100720274856, 0.3689754455011677, -0.05663100930078971, -0.11080970178194217, 0.15228617590434046, -0.14961925386821598, -0.05748020378020804, 0.11965855476393533, 0.1754431810695678, 0.08828410243718694, -0.2218611106932671, 0.034789822707931635, 0.08046475998443467, 0.13626919517462904, 0.07738494312401269, 0.10944497360932556, 0.2541173119997521, 0.2873623948120935, -0.020460130526606172, 0.1567136706818763, -0.13756263924667358, 0.010384485802867195, -0.2967508030441505, -0.2514266478458673, -0.1524465435941238, 0.07018136025131257, -0.046980322322269785, -0.18817557162732224, 0.43569739611120895, 0.15292257442541252, 0.13170887335118922, -0.07523732629223642, 0.3494531975381754, 0.09114861332107632, 0.12024000117724593, -0.029963596136605538, 0.2760441739493134, 0.15378991749127058, 0.17236400580837985, -0.175962455782362, 0.09721065694148737, -0.0267251039119649] |
711.3277 | 3-D Self-Assembled Soi Mems: An Example of Multiphysics Simulation | MEMS devices are typical systems where multiphysics simulations are
unavoidable. In this work, we present possible applications of 3-D
self-assembled SOI (Silicon-on-Insulator) MEMS such as, for instance, thermal
actuators and flow sensors. The numerical simulations of these microsystems are
presented. Structural and thermal parts have to be strongly coupled for
correctly describing the fabrication process and for simulating the behavior of
these 3-D SOI MEMS.
| cs.OH | mems devices are typical systems where multiphysics simulations are unavoidable in this work we present possible applications of 3d selfassembled soi silicononinsulator mems such as for instance thermal actuators and flow sensors the numerical simulations of these microsystems are presented structural and thermal parts have to be strongly coupled for correctly describing the fabrication process and for simulating the behavior of these 3d soi mems | [['mems', 'devices', 'are', 'typical', 'systems', 'where', 'multiphysics', 'simulations', 'are', 'unavoidable', 'in', 'this', 'work', 'we', 'present', 'possible', 'applications', 'of', '3d', 'selfassembled', 'soi', 'silicononinsulator', 'mems', 'such', 'as', 'for', 'instance', 'thermal', 'actuators', 'and', 'flow', 'sensors', 'the', 'numerical', 'simulations', 'of', 'these', 'microsystems', 'are', 'presented', 'structural', 'and', 'thermal', 'parts', 'have', 'to', 'be', 'strongly', 'coupled', 'for', 'correctly', 'describing', 'the', 'fabrication', 'process', 'and', 'for', 'simulating', 'the', 'behavior', 'of', 'these', '3d', 'soi', 'mems']] | [-0.14126250302920548, 0.1327733192163018, 0.017772281914949416, -0.10683416379333022, -0.02340073403544151, -0.2111498257288566, -0.12243948367137748, 0.4521552486918293, -0.2596551709378568, -0.33685076907277106, 0.15085878151361473, -0.2797702210668761, -0.19048864259742773, 0.31116582957597877, -0.04885776199830266, 0.16071534983527203, 0.07547907372220204, -0.12906110934340037, 0.01759920034897872, -0.1559028536439515, 0.26886665301684004, 0.03870429994108585, 0.2500668403477623, 0.03879864417876189, 0.09049610709771513, -0.03275295185784881, 0.03114262205333664, 0.03350050659814419, -0.13249482076901656, 0.11527576357699358, 0.3014884522686211, -0.04716603872008049, 0.20409124060892142, -0.5562301190999838, -0.24770758407763563, 0.027636927029547783, 0.12137197832791852, 0.11313249494593877, -0.11930801699367853, -0.2844618835987953, 0.11549661193902676, -0.17419818744349938, -0.09065263080388272, -0.10266881095818602, 0.0140439333824011, 0.06624725591033125, -0.2387752410884087, 0.030170722080108067, 0.031676354438353045, 0.053079418620864786, -0.06477115635979526, -0.07290889179477325, -0.0035448760618097507, 0.13730245162016497, -0.04547543286462315, -0.09243250530069837, 0.271958032114288, -0.14587427436803968, -0.11681002117693425, 0.394479907819858, 0.069098733824033, -0.199033780883138, 0.23268568047608892, -0.08668478731639111, -0.06920076457317918, 0.08974946106855686, 0.23873340321274905, 0.09058935080583279, -0.1894101703969332, 0.04268548182086446, 0.06709064715183698, 0.13475887437279407, 0.013046465968140042, 0.07197013910000141, 0.2146688225535819, 0.28593544327439024, -0.021879150098762835, 0.12303880581882998, -0.10300578939226958, -0.06590130673094581, -0.2716576324059413, -0.21240072823487796, -0.1937152321378772, 0.038453588795919834, -0.1062402186478721, -0.2209989521939021, 0.3613349400030879, 0.2129723366206655, 0.07764571304074847, -0.015857006082884394, 0.35731611624180987, 0.11286412212245453, 0.0788669660830727, -0.019528900167474952, 0.2925250182286478, 0.11727928122362265, 0.13468457635205525, -0.2265687637317639, 0.04133501393147386, -0.041205962245854044] |
711.3278 | Electron-electron interaction in 2D and 1D ferromagnetic (Ga,Mn)As | We investigated the magnetotransport in high quality ferromagnetic (Ga,Mn)As
films and wires. At low temperature the conductivity decreases with decreasing
temperature without saturation down to 20 mK. Here we show, that the
conductivity decrease follows a ln($T/T_0$) dependency in 2D films and a
$-1/\sqrt{T}$ dependency in 1D wires and is independent of an applied magnetic
field. This behavior can be explained by the theory of electron-electron
interaction.
| cond-mat.mes-hall | we investigated the magnetotransport in high quality ferromagnetic gamnas films and wires at low temperature the conductivity decreases with decreasing temperature without saturation down to 20 mk here we show that the conductivity decrease follows a lntt_0 dependency in 2d films and a 1sqrtt dependency in 1d wires and is independent of an applied magnetic field this behavior can be explained by the theory of electronelectron interaction | [['we', 'investigated', 'the', 'magnetotransport', 'in', 'high', 'quality', 'ferromagnetic', 'gamnas', 'films', 'and', 'wires', 'at', 'low', 'temperature', 'the', 'conductivity', 'decreases', 'with', 'decreasing', 'temperature', 'without', 'saturation', 'down', 'to', '20', 'mk', 'here', 'we', 'show', 'that', 'the', 'conductivity', 'decrease', 'follows', 'a', 'lntt_0', 'dependency', 'in', '2d', 'films', 'and', 'a', '1sqrtt', 'dependency', 'in', '1d', 'wires', 'and', 'is', 'independent', 'of', 'an', 'applied', 'magnetic', 'field', 'this', 'behavior', 'can', 'be', 'explained', 'by', 'the', 'theory', 'of', 'electronelectron', 'interaction']] | [-0.148468676495902, 0.2472099216717073, -0.017584950335069814, -0.0039033601766057086, -0.008570013416112599, -0.14311576732011003, 0.06841747073110926, 0.42554645378594147, -0.2866960463932518, -0.31972458143012994, 0.005015752675138752, -0.33284201271211106, -0.0674086561511186, 0.1789060843064252, 0.002802528836058848, 0.012056109693014261, -0.06474471050596824, -0.06129681632614158, -0.12996507249419775, -0.2322670785449163, 0.24252810526046564, 0.04639489773773786, 0.35476226488720963, 0.1566607879446537, 0.030248637607490473, 0.0005267233670813519, 0.15506376815381262, 0.14796482662980756, -0.15568976299398468, -0.03278008285401897, 0.24238494223523463, -0.1425612149152695, 0.19271246803867997, -0.4738047741579287, -0.2329669846645133, -0.052634593565016985, 0.16319420202776339, 0.12491911995422209, -0.048586304504142114, -0.1994157681650849, 0.09336894437332045, -0.12185187349942597, -0.11060489472142901, -0.06560228367082098, -0.013426466045943513, -0.01014866593477288, -0.25047245285840647, 0.128113890856956, 0.08924559297773874, 0.15325720086129327, -0.08177652498213292, -0.1140154453248463, -0.05010826299390332, 0.05052195487995491, 0.0648880448072415, 0.08826510232845039, 0.20554067435759035, -0.1541580067291348, -0.07150453727544201, 0.2858224271260428, -0.15252414464449623, -0.07600605961951343, 0.16158772670579227, -0.2101252498016975, -0.05052547499706799, 0.16692412780089813, 0.12347316684088472, 0.07615625102665614, -0.1341202914235041, 0.08926818088167982, 0.02906427919779989, 0.23142472821090257, 0.05615824750257713, 0.019048809236141318, 0.22510962557950706, 0.24561709670745063, -0.011801509447678021, 0.17746623059572425, -0.11602162820936153, 0.05492545660077171, -0.19687348262717327, -0.17185352311582502, -0.24382785509453353, 0.09796044904258892, -0.14108868063869356, -0.18931854128922251, 0.3674495584811225, 0.20610377258113163, 0.2123760107523677, 0.011149928397075697, 0.25243128917998436, 0.1832440849958044, 0.07145969995833708, 0.05159448642481231, 0.24269006858495148, 0.20388154635050645, 0.18220468731879286, -0.28592915151437576, 0.07404275333762846, -0.06667364280490967] |
711.3279 | Influence of the Feedback Filter on the Response of the Pulsed Digital
Oscillator | This paper introduces a new feedback topology for the Pulsed Digital
Oscillator (PDO) and compares it to the classical topology. The `classic' or
single feedback topology, introduced in previous works, shows a strong behavior
dependence on the damping losses in the MEMS resonator. A new double feedback
topology is introduced here in order to help solving this problem. Comparative
discrete-time simulations and preliminary experimental measurements have been
carried out for both topologies, showing how the new double feedback topology
may increase PDO performance for some frequency ranges.
| cs.OH | this paper introduces a new feedback topology for the pulsed digital oscillator pdo and compares it to the classical topology the classic or single feedback topology introduced in previous works shows a strong behavior dependence on the damping losses in the mems resonator a new double feedback topology is introduced here in order to help solving this problem comparative discretetime simulations and preliminary experimental measurements have been carried out for both topologies showing how the new double feedback topology may increase pdo performance for some frequency ranges | [['this', 'paper', 'introduces', 'a', 'new', 'feedback', 'topology', 'for', 'the', 'pulsed', 'digital', 'oscillator', 'pdo', 'and', 'compares', 'it', 'to', 'the', 'classical', 'topology', 'the', 'classic', 'or', 'single', 'feedback', 'topology', 'introduced', 'in', 'previous', 'works', 'shows', 'a', 'strong', 'behavior', 'dependence', 'on', 'the', 'damping', 'losses', 'in', 'the', 'mems', 'resonator', 'a', 'new', 'double', 'feedback', 'topology', 'is', 'introduced', 'here', 'in', 'order', 'to', 'help', 'solving', 'this', 'problem', 'comparative', 'discretetime', 'simulations', 'and', 'preliminary', 'experimental', 'measurements', 'have', 'been', 'carried', 'out', 'for', 'both', 'topologies', 'showing', 'how', 'the', 'new', 'double', 'feedback', 'topology', 'may', 'increase', 'pdo', 'performance', 'for', 'some', 'frequency', 'ranges']] | [-0.1687224540249284, 0.08415167386932619, -0.06255885010221224, 0.04407833307146345, -0.13373079618449782, -0.14448452739569562, 0.09050075622173775, 0.3771793840067654, -0.2853297536400543, -0.2910666810241581, 0.08574727126838767, -0.26010360153413364, -0.19521788003768814, 0.2736987301132417, -0.09727409709614285, 0.06015454308161962, 0.05675888014422066, -0.015277801060128486, -0.05478123692131933, -0.22244498614575073, 0.29076556818581173, 0.13209448874681845, 0.3206652501630115, 0.03843427112562871, 0.05556892471430802, -0.03152883405550972, -0.0404176135258428, 0.04840954721252295, -0.13761159326163944, 0.030656262310275316, 0.21806429349014472, 0.04922274000214777, 0.30294530110797663, -0.41135802289107065, -0.25784495684864195, 0.07061464999984393, 0.13454742557048027, 0.09919320281572244, -0.1300688073140751, -0.25387063546470184, 0.06295851662476686, -0.18612352324564052, -0.08519184628860148, -0.06734074103035803, -0.02365855578916554, 0.03584029283697366, -0.2631216076063527, 0.006929199655550992, 0.06988669544907994, 0.05352201045158951, -0.055675973157644616, -0.06864765803490219, 0.036059475461042476, 0.12787595570446045, -0.033417663218496346, 0.007093744737834766, 0.11803319649877904, -0.08329020887506249, -0.17979706573332177, 0.28203976280644705, -0.03256055382588857, -0.22444912060110392, 0.18596394308949768, -0.1302072230897758, -0.14283054409784146, 0.10251114094340853, 0.17902996081152353, 0.07867464261536283, -0.1329631239494266, 0.071420013635612, 0.00014028106628777995, 0.19905692435287195, 0.030676644038537454, 0.029214408794610666, 0.12525097463526175, 0.21451470558799204, 0.05884803541743293, 0.17863630285639123, -0.0652533235475314, -0.1365512476099291, -0.25447843741925286, -0.07777385252270975, -0.09849347693620827, 0.06561631275790519, -0.027519736944459614, -0.14529082854546008, 0.42667270687826236, 0.10998475854351966, 0.16571879214553656, 0.0002614861653967835, 0.33812216916068016, 0.10959485129201678, 0.0394141776059037, 0.008246817074758911, 0.3039852449502836, 0.1516799900637961, 0.17348600382884516, -0.2675954980813181, 0.06251628365603158, 0.030813504861475063] |
711.328 | Chaotic behavior in the accretion disk | The eccentric luminosity variation of quasars is still a mystery. Analytic
results of this behavior ranged from multi-periodic behavior to a purely random
process. Recently, we have used nonlinear time-series analysis to analyze the
light curve of 3C 273 and found its eccentric behavior may be chaos [L. Liu,
Chin. J. Astron. Astrophys. \textbf{6}, 663 (2006)]. This result induces us to
look for some nonlinear mechanism to explain the eccentric luminosity
variation. In this paper, we propose a simple non-linear accretion disk model
and find it shows a kind of chaotic behavior under some circumstances. Then we
compute the outburst energy $\triangle F$, defined as the difference of the
maximum luminosity and the minimum luminosity, and the mean luminosity $<F>$.
We find that $\triangle F\sim < F >^{\alpha}$ in the chaotic domain, where
$\alpha\approx 1$. In this domain, we also find that $<F > \sim M^{0.5}$, where
$M$ is the mass of central black hole. These results are confirmed by or
compatible with some results from the observational data analysis [A. J. Pica
and A. G. Smith, Astrophys. J. \textbf{272}, 11 (1983); M. Wold, M. S.
Brotherton and Z. Shang, Mon. Not. R. Astron. Soc. \textbf{375}, 989 (2007)].
| astro-ph | the eccentric luminosity variation of quasars is still a mystery analytic results of this behavior ranged from multiperiodic behavior to a purely random process recently we have used nonlinear timeseries analysis to analyze the light curve of 3c 273 and found its eccentric behavior may be chaos l liu chin j astron astrophys textbf6 663 2006 this result induces us to look for some nonlinear mechanism to explain the eccentric luminosity variation in this paper we propose a simple nonlinear accretion disk model and find it shows a kind of chaotic behavior under some circumstances then we compute the outburst energy triangle f defined as the difference of the maximum luminosity and the minimum luminosity and the mean luminosity f we find that triangle fsim f alpha in the chaotic domain where alphaapprox 1 in this domain we also find that f sim m05 where m is the mass of central black hole these results are confirmed by or compatible with some results from the observational data analysis a j pica and a g smith astrophys j textbf272 11 1983 m wold m s brotherton and z shang mon not r astron soc textbf375 989 2007 | [['the', 'eccentric', 'luminosity', 'variation', 'of', 'quasars', 'is', 'still', 'a', 'mystery', 'analytic', 'results', 'of', 'this', 'behavior', 'ranged', 'from', 'multiperiodic', 'behavior', 'to', 'a', 'purely', 'random', 'process', 'recently', 'we', 'have', 'used', 'nonlinear', 'timeseries', 'analysis', 'to', 'analyze', 'the', 'light', 'curve', 'of', '3c', '273', 'and', 'found', 'its', 'eccentric', 'behavior', 'may', 'be', 'chaos', 'l', 'liu', 'chin', 'j', 'astron', 'astrophys', 'textbf6', '663', '2006', 'this', 'result', 'induces', 'us', 'to', 'look', 'for', 'some', 'nonlinear', 'mechanism', 'to', 'explain', 'the', 'eccentric', 'luminosity', 'variation', 'in', 'this', 'paper', 'we', 'propose', 'a', 'simple', 'nonlinear', 'accretion', 'disk', 'model', 'and', 'find', 'it', 'shows', 'a', 'kind', 'of', 'chaotic', 'behavior', 'under', 'some', 'circumstances', 'then', 'we', 'compute', 'the', 'outburst', 'energy', 'triangle', 'f', 'defined', 'as', 'the', 'difference', 'of', 'the', 'maximum', 'luminosity', 'and', 'the', 'minimum', 'luminosity', 'and', 'the', 'mean', 'luminosity', 'f', 'we', 'find', 'that', 'triangle', 'fsim', 'f', 'alpha', 'in', 'the', 'chaotic', 'domain', 'where', 'alphaapprox', '1', 'in', 'this', 'domain', 'we', 'also', 'find', 'that', 'f', 'sim', 'm05', 'where', 'm', 'is', 'the', 'mass', 'of', 'central', 'black', 'hole', 'these', 'results', 'are', 'confirmed', 'by', 'or', 'compatible', 'with', 'some', 'results', 'from', 'the', 'observational', 'data', 'analysis', 'a', 'j', 'pica', 'and', 'a', 'g', 'smith', 'astrophys', 'j', 'textbf272', '11', '1983', 'm', 'wold', 'm', 's', 'brotherton', 'and', 'z', 'shang', 'mon', 'not', 'r', 'astron', 'soc', 'textbf375', '989', '2007']] | [-0.13648032245001776, 0.07953580206058458, -0.09777203955706786, 0.07008317598181223, -0.10792905186091732, -0.14609385849956, 0.059726836446063, 0.37008420041325435, -0.19719827031421466, -0.32944854949697006, 0.07474742850022313, -0.2827574351836073, -0.13133807862135485, 0.19700489514963412, -0.0937125560300684, 0.0114121224245743, 0.05304139596170064, -0.05656971901741609, -0.03474173880153403, -0.2406528622401667, 0.22898278455009935, 0.038669715371443744, 0.15371213914702295, -0.0015429941497469494, 0.04886126683091207, -0.03712042820515092, -0.03504847921911128, -0.026137763039045726, -0.2223914871980183, 0.03900257731966684, 0.22956232286356004, 0.08979091818862085, 0.2303696206396388, -0.2908055629658023, -0.17717310761403984, 0.10752849484501004, 0.09631934130657945, -0.022237439315223626, 0.009858815632844535, -0.26034929349144786, 0.08024843624905809, -0.200684464800642, -0.14516296774177745, 0.005040520931757295, 0.17146607367657893, 0.0024831945162996187, -0.2942801755973013, 0.1266222612261136, 0.12882745478028604, 0.0734934600048516, -0.038058191515654136, -0.11120359013193123, -0.05717032973788986, 0.0023450873487331357, 0.02996449956604995, 0.117650675829788, 0.1025532497712363, -0.054652675933483025, -0.06854739385241758, 0.3331129986579175, -0.10238922046516667, -0.0550213161491088, 0.192420900943353, -0.18541482444216506, -0.1453464339636074, 0.10815204807182717, 0.1550105551939419, 0.11489431942409846, -0.14233578134990615, 0.13254989988528212, -0.06888285106691272, 0.1801146886133848, 0.08852034359066219, -0.018360759135810947, 0.20100151293805427, 0.07966172230518759, 0.004717632430874426, 0.09032661720363845, -0.14309489536915243, -0.007530508354094993, -0.2641564420773648, -0.10359078828700262, -0.16496538938882463, 0.14080373908174956, -0.08558615484138705, -0.12013613271014525, 0.3569844676440908, 0.11189723377339254, 0.25169099796294553, 0.03879764084176151, 0.16884067015645585, 0.11513187247508484, -0.005859285100968075, 0.18904103303673803, 0.2865202100849986, 0.14789754645922942, 0.13335312590646298, -0.2338605553737467, 0.006677061739406481, 0.052450725818340926] |
711.3281 | Relativistic Photon Mediated Shocks | A system of equations governing the structure of a steady, relativistic
radiation dominated shock is derived, starting from the general form of the
transfer equation obeyed by the photon distribution function. Closure is
obtained by truncating the system of moment equations at some order. The
anisotropy of the photon distribution function inside the shock is shown to
increase with increasing shock velocity, approaching nearly perfect beaming at
upstream Lorentz factors $\Gamma_{-}>>1$. Solutions of the shock equations are
presented for some range of upstream conditions. These solutions are shown to
converge as the truncation order is increased.
| astro-ph | a system of equations governing the structure of a steady relativistic radiation dominated shock is derived starting from the general form of the transfer equation obeyed by the photon distribution function closure is obtained by truncating the system of moment equations at some order the anisotropy of the photon distribution function inside the shock is shown to increase with increasing shock velocity approaching nearly perfect beaming at upstream lorentz factors gamma_1 solutions of the shock equations are presented for some range of upstream conditions these solutions are shown to converge as the truncation order is increased | [['a', 'system', 'of', 'equations', 'governing', 'the', 'structure', 'of', 'a', 'steady', 'relativistic', 'radiation', 'dominated', 'shock', 'is', 'derived', 'starting', 'from', 'the', 'general', 'form', 'of', 'the', 'transfer', 'equation', 'obeyed', 'by', 'the', 'photon', 'distribution', 'function', 'closure', 'is', 'obtained', 'by', 'truncating', 'the', 'system', 'of', 'moment', 'equations', 'at', 'some', 'order', 'the', 'anisotropy', 'of', 'the', 'photon', 'distribution', 'function', 'inside', 'the', 'shock', 'is', 'shown', 'to', 'increase', 'with', 'increasing', 'shock', 'velocity', 'approaching', 'nearly', 'perfect', 'beaming', 'at', 'upstream', 'lorentz', 'factors', 'gamma_1', 'solutions', 'of', 'the', 'shock', 'equations', 'are', 'presented', 'for', 'some', 'range', 'of', 'upstream', 'conditions', 'these', 'solutions', 'are', 'shown', 'to', 'converge', 'as', 'the', 'truncation', 'order', 'is', 'increased']] | [-0.15238018831587397, 0.15492198260229392, -0.07212864147732034, 0.05507134509874353, -0.058213300006173085, -0.08103369003705059, -0.037230037304955964, 0.3120554711980124, -0.2933293229337626, -0.28941065169055946, 0.05875043510847414, -0.31416734341958846, -0.03011414789458892, 0.20476479310309514, 0.055369388622542225, 0.06410130016835562, 0.044448260370700154, 0.012417348305461928, -0.09084688479197212, -0.1638644488460462, 0.3414154975131775, 0.07134897757593232, 0.26067383818735834, 0.02418114646570757, 0.1603496891184477, -0.07316264829811796, 0.01849610861002778, 0.019976622745161876, -0.14041426498200357, 0.0409193635180903, 0.1757240648730658, 0.07680595504643861, 0.2365466065942504, -0.42078653373755515, -0.24256410116019347, 0.027362523270615686, 0.16730972252601836, 0.09581419348251075, -0.005599264580572101, -0.2574112212945086, 0.0678946414263919, -0.19441850582370535, -0.24141135222938223, 0.0014632626916863956, 0.014110024028923362, 0.10051838510844391, -0.2791950738543771, 0.12336406096922777, 0.04467946045527545, 0.009576807573466795, -0.1155797336420316, -0.07984263718268873, -0.06419732089367851, 0.06965876051496404, 0.10509211464523105, 0.05440803470749719, 0.13956568586096788, -0.2018481264676666, 0.004235784925792056, 0.414161504789566, -0.04843298856455173, -0.19762497500050813, 0.13227702231718771, -0.22251262574961098, -0.034534187065825485, 0.2473410865253148, 0.12654058930153647, 0.09905527236211735, -0.1183578009276971, 0.040965478978857085, -0.01417684972693678, 0.12174761838590105, 0.11946871719555929, -0.014012074664909354, 0.17311915566582078, 0.10539657268479156, 0.057776156754698604, 0.12955740417237394, -0.04616925705825755, -0.10227077237990063, -0.367498875867265, -0.09631568266195245, -0.1674237407084244, 0.07608249639937033, -0.1323461858361649, -0.14270752559908337, 0.3335168238530362, 0.1016517656292611, 0.12225055331752326, 0.02296684366107608, 0.25198233005357906, 0.2624767774917321, 0.01630250089025746, 0.12842015282755406, 0.2772512069041113, 0.19031448573999418, 0.09757831774671406, -0.24859895907138707, 0.10761119486414827, 0.08956236766728883] |
711.3282 | Study of Pure Annihilation Decays B_{d,s} \to D^{0} \bar D^{0} | With heavy quark limit and hierarchy approximation $\lambda_{QCD}\ll m_D\ll
m_B$, we analyze the $B\to D^0\bar D^0$ and $B_s\to D^0\bar D^0$ decays, which
occur purely via annihilation type diagrams. As a roughly estimation, we
calculate their branching ratios and CP asymmetries in Perturbative QCD
approach. The branching ratio of $B\to D^0\bar D^0$ is about $3.8\times10^{-5}$
that is just below the latest experimental upper limit. The branching ratio of
$B_s\to D^0\bar D^0$ is about $6.8\times10^{-4}$, which could be measured in
LHC-b. From the calculation, it could be found that this branching ratio is not
sensitive to the weak phase angle $\gamma$. In these two decay modes, there
exist CP asymmetries because of interference between weak and strong
interaction. However, these asymmetries are too small to be measured easily.
| hep-ph | with heavy quark limit and hierarchy approximation lambda_qcdll m_dll m_b we analyze the bto d0bar d0 and b_sto d0bar d0 decays which occur purely via annihilation type diagrams as a roughly estimation we calculate their branching ratios and cp asymmetries in perturbative qcd approach the branching ratio of bto d0bar d0 is about 38times105 that is just below the latest experimental upper limit the branching ratio of b_sto d0bar d0 is about 68times104 which could be measured in lhcb from the calculation it could be found that this branching ratio is not sensitive to the weak phase angle gamma in these two decay modes there exist cp asymmetries because of interference between weak and strong interaction however these asymmetries are too small to be measured easily | [['with', 'heavy', 'quark', 'limit', 'and', 'hierarchy', 'approximation', 'lambda_qcdll', 'm_dll', 'm_b', 'we', 'analyze', 'the', 'bto', 'd0bar', 'd0', 'and', 'b_sto', 'd0bar', 'd0', 'decays', 'which', 'occur', 'purely', 'via', 'annihilation', 'type', 'diagrams', 'as', 'a', 'roughly', 'estimation', 'we', 'calculate', 'their', 'branching', 'ratios', 'and', 'cp', 'asymmetries', 'in', 'perturbative', 'qcd', 'approach', 'the', 'branching', 'ratio', 'of', 'bto', 'd0bar', 'd0', 'is', 'about', '38times105', 'that', 'is', 'just', 'below', 'the', 'latest', 'experimental', 'upper', 'limit', 'the', 'branching', 'ratio', 'of', 'b_sto', 'd0bar', 'd0', 'is', 'about', '68times104', 'which', 'could', 'be', 'measured', 'in', 'lhcb', 'from', 'the', 'calculation', 'it', 'could', 'be', 'found', 'that', 'this', 'branching', 'ratio', 'is', 'not', 'sensitive', 'to', 'the', 'weak', 'phase', 'angle', 'gamma', 'in', 'these', 'two', 'decay', 'modes', 'there', 'exist', 'cp', 'asymmetries', 'because', 'of', 'interference', 'between', 'weak', 'and', 'strong', 'interaction', 'however', 'these', 'asymmetries', 'are', 'too', 'small', 'to', 'be', 'measured', 'easily']] | [-0.10922738257795572, 0.27681045666817694, -0.07290303904277783, 0.13750863897862034, -0.06973436142077609, -0.14763047971627524, 0.14122105056266, 0.2901005255914624, -0.2438530773825703, -0.23368434861843143, 0.005496683642230628, -0.3261512116183557, -0.01232325742697163, 0.12803663101588045, 0.08291878027798262, 0.07964821874855026, 0.1052137115395688, -0.05725090112161612, -0.0722271783189142, -0.1601521816957111, 0.1910113601104146, -0.06051856995890698, 0.22202838997491786, 0.1445983559786973, -0.11634182463580321, -0.06644161375457301, -0.04101062279697808, -0.017372050793886547, -0.1663522332078907, -0.008386475302564401, 0.24354983654226206, 0.11274551188961918, 0.019181949597212575, -0.3065164697717034, 0.028132348256598737, 0.24506124344113614, 0.21252283056814886, 0.0729692007711668, 0.023296018628658908, -0.38443009890315516, 0.15645074035086098, -0.16679408892260625, -0.008100920747364721, -0.08568126501725806, 0.0532955983127918, -0.10638880024142112, -0.3643951583165495, 0.12322036578740564, -0.060300550393519864, 0.020582824755570807, 0.07949013173234679, -0.2580889155524933, -0.022381009804385323, 0.02463785080885094, 0.14585071914048203, 0.07840368110356072, 0.18697982078658476, -0.1004395566396265, -0.15196950946964563, 0.3758858147587988, -0.0941447998573553, -0.1833879912005467, 0.1382027403526609, -0.2577997492494873, -0.14609631658681937, 0.18803502139334957, 0.21069919228865464, 0.03277657529143917, -0.1883312669853049, 0.10839820588420655, -0.02931880440953518, 0.19925302483381763, 0.1386659829539337, 0.09979154103841152, 0.21062516502194828, 0.18226549059205177, -0.029720689973703796, 0.02118320585389982, -0.09240860303848862, -0.07967143898619519, -0.39447517475233446, -0.0983336896883444, -0.055113157194535876, 0.119966855954361, -0.08876846524494354, -0.07802168225058384, 0.2701573744528897, 0.05602648407371054, 0.33375462632125896, 0.02463394753830207, 0.3292603163769649, 0.1578068443970199, 0.05099718568418475, 0.042381892483981866, 0.38836560868507913, 0.24731802425888036, 0.14834042113920254, -0.311221306296272, 0.13669723921057378, 0.0270657722534041] |
711.3283 | Modeling river delta formation | A new model to simulate the time evolution of river delta formation process
is presented. It is based on the continuity equation for water and sediment
flow and a phenomenological sedimentation/ erosion law. Different delta types
are reproduced using different parameters and erosion rules. The structures of
the calculated patterns are analyzed in space and time and compared with real
data patterns. Furthermore our model is capable to simulate the rich dynamics
related to the switching of the mouth of the river delta. The simulation
results are then compared with geological records for the Mississippi river.
| physics.geo-ph | a new model to simulate the time evolution of river delta formation process is presented it is based on the continuity equation for water and sediment flow and a phenomenological sedimentation erosion law different delta types are reproduced using different parameters and erosion rules the structures of the calculated patterns are analyzed in space and time and compared with real data patterns furthermore our model is capable to simulate the rich dynamics related to the switching of the mouth of the river delta the simulation results are then compared with geological records for the mississippi river | [['a', 'new', 'model', 'to', 'simulate', 'the', 'time', 'evolution', 'of', 'river', 'delta', 'formation', 'process', 'is', 'presented', 'it', 'is', 'based', 'on', 'the', 'continuity', 'equation', 'for', 'water', 'and', 'sediment', 'flow', 'and', 'a', 'phenomenological', 'sedimentation', 'erosion', 'law', 'different', 'delta', 'types', 'are', 'reproduced', 'using', 'different', 'parameters', 'and', 'erosion', 'rules', 'the', 'structures', 'of', 'the', 'calculated', 'patterns', 'are', 'analyzed', 'in', 'space', 'and', 'time', 'and', 'compared', 'with', 'real', 'data', 'patterns', 'furthermore', 'our', 'model', 'is', 'capable', 'to', 'simulate', 'the', 'rich', 'dynamics', 'related', 'to', 'the', 'switching', 'of', 'the', 'mouth', 'of', 'the', 'river', 'delta', 'the', 'simulation', 'results', 'are', 'then', 'compared', 'with', 'geological', 'records', 'for', 'the', 'mississippi', 'river']] | [-0.053733833987886705, 0.13678309457706442, -0.09304963508717871, 0.08161548536927891, -0.022235869740446407, -0.0768047264185346, 0.012611335007629046, 0.32916603695290786, -0.289642996309946, -0.31788432271180983, 0.12373322606799775, -0.30819313079700805, -0.13164752536977176, 0.22310638677542252, -0.025654657176346518, 0.0676630983944051, 0.06275798950809985, -0.011999030102742836, -0.009381500315309191, -0.1866799541991592, 0.27892750151416595, 0.05151090155898904, 0.29462107772026985, 0.05271002466421729, 0.08637533515987646, -0.08021299613271064, -0.05767153519263957, 0.0037040363540654653, -0.18040222680914061, 0.05257757907869139, 0.1902431540778101, 0.1019957668419617, 0.17700604279525578, -0.4773685615703774, -0.2591875320746719, 0.043950385976737984, 0.08062846383836586, 0.06057596667960752, -0.027276519271254074, -0.28390439580349874, 0.0758772923630507, -0.12737376661001085, -0.13035816475652004, -0.038469580495681534, 0.05232257052072479, 0.08207127006608061, -0.2779370507923886, 0.10324856823232646, -0.009703132071687529, 0.07061915038502775, -0.09185947137302719, -0.09627802477916703, -0.1007787317284965, 0.1666632304501642, 0.046189737923062545, -0.017173426579878043, 0.16341664706123993, -0.0954872898873873, -0.06139559108123649, 0.4252662449919929, -0.06298242935251135, -0.1888529049271407, 0.19939005084597738, -0.13111477494627857, -0.0822661042814919, 0.11986018726990248, 0.1990325276516766, 0.09762940100495143, -0.17710415447557656, -0.011596844912977152, -0.034611789356858935, 0.13281437343054373, 0.07932761465296305, -0.07031775075787057, 0.16643753387810042, 0.2782691182025398, -0.008114518675332269, 0.10015894774066207, -0.14145842439999493, -0.16373616275086533, -0.2596218566177413, -0.11711455118105125, -0.11943632169034875, -0.041088233180441115, -0.11811101027630382, -0.13162362758885138, 0.4188634881223455, 0.1381729704492803, 0.17360424364869687, 0.06534226750954986, 0.2670348530324797, 0.09260697068748414, 0.0559482583097027, 0.0785804167050325, 0.16319721787052308, 0.07927365915384144, 0.15140347026560144, -0.26378458500645746, 0.14447564833729606, 0.011201323563000187] |
711.3284 | Concave Microlens Array Mold Fabrication in Photoresist Using UV
Proximity Printing | This paper presents a simple and effective method to fabricate a
polydimethyl-siloxane (PDMS) microlens array with a high fill factor, which
utilizes the UV proximity printing and photoresist replication methods. The
concave microlens array mold was made using a printing gap in lithography
process, which utilizes optical diffraction of UV light to deflect away from
the aperture edges and produces a certain exposure in the photoresist material
outside the aperture edges. This method can precisely control the geometric
profile of concave microlens array. The experimental results showed that the
concave micro-lens array in photoresist could be formed automatically when the
printing gap ranged from 240 micron to 720 micron. High fill factor microlens
array can be produced, when the control pitch distance between the adjacent
apertures of the concave microlens array was decreased to the aperture size.
| cs.OH | this paper presents a simple and effective method to fabricate a polydimethylsiloxane pdms microlens array with a high fill factor which utilizes the uv proximity printing and photoresist replication methods the concave microlens array mold was made using a printing gap in lithography process which utilizes optical diffraction of uv light to deflect away from the aperture edges and produces a certain exposure in the photoresist material outside the aperture edges this method can precisely control the geometric profile of concave microlens array the experimental results showed that the concave microlens array in photoresist could be formed automatically when the printing gap ranged from 240 micron to 720 micron high fill factor microlens array can be produced when the control pitch distance between the adjacent apertures of the concave microlens array was decreased to the aperture size | [['this', 'paper', 'presents', 'a', 'simple', 'and', 'effective', 'method', 'to', 'fabricate', 'a', 'polydimethylsiloxane', 'pdms', 'microlens', 'array', 'with', 'a', 'high', 'fill', 'factor', 'which', 'utilizes', 'the', 'uv', 'proximity', 'printing', 'and', 'photoresist', 'replication', 'methods', 'the', 'concave', 'microlens', 'array', 'mold', 'was', 'made', 'using', 'a', 'printing', 'gap', 'in', 'lithography', 'process', 'which', 'utilizes', 'optical', 'diffraction', 'of', 'uv', 'light', 'to', 'deflect', 'away', 'from', 'the', 'aperture', 'edges', 'and', 'produces', 'a', 'certain', 'exposure', 'in', 'the', 'photoresist', 'material', 'outside', 'the', 'aperture', 'edges', 'this', 'method', 'can', 'precisely', 'control', 'the', 'geometric', 'profile', 'of', 'concave', 'microlens', 'array', 'the', 'experimental', 'results', 'showed', 'that', 'the', 'concave', 'microlens', 'array', 'in', 'photoresist', 'could', 'be', 'formed', 'automatically', 'when', 'the', 'printing', 'gap', 'ranged', 'from', '240', 'micron', 'to', '720', 'micron', 'high', 'fill', 'factor', 'microlens', 'array', 'can', 'be', 'produced', 'when', 'the', 'control', 'pitch', 'distance', 'between', 'the', 'adjacent', 'apertures', 'of', 'the', 'concave', 'microlens', 'array', 'was', 'decreased', 'to', 'the', 'aperture', 'size']] | [-0.05432130245960923, 0.11887755105441884, -0.07617700633926004, -0.06513416083874748, -0.09038325282065265, -0.19858734281801613, 0.048650425254625616, 0.5333315291217644, -0.2761855102178172, -0.3741703459952217, 0.10867791475785937, -0.3168600296030623, -0.10983043510711542, 0.16844333859881128, -0.11403333958591857, 0.06732133083575725, 0.0795841737468489, -0.16364180058730346, -0.05223503314641841, -0.17532144654405185, 0.18384208824030077, 0.08752266444728105, 0.276335109290361, 0.05489908204070653, 0.11198452592956541, 0.02891151065577882, 0.013161716275732883, 0.06750340441014129, -0.13011777802247487, 0.14561507069458166, 0.2392017649755181, 0.019285225523567765, 0.1780427776032338, -0.42134304132557265, -0.1771719377474302, 0.02074914289651996, 0.12456143742603977, 0.05625965069965833, -0.060423475091964225, -0.2778137952283052, 0.0659378819154018, -0.11481929404565888, -0.15617402379883685, 0.08204458065222214, -0.012310508067590476, 0.022725859653530984, -0.2698373603396607, -0.05267987508487371, -0.007574938295874745, 0.038294686564502654, -0.006733009720860172, -0.11288661734425347, -0.019020140765873838, 0.07776815860139641, -0.06597742742207072, 0.07541416478377298, 0.2199894614504093, -0.061794236385650986, -0.013280534722509176, 0.30806438348181275, -0.03711861226517354, -0.12464264548047153, 0.1375473110399542, -0.1723237617389999, 0.04680195252281906, 0.2610307723202192, 0.18701586235368992, 0.0948216801825367, -0.18876620761843663, 0.012594707186561567, -0.021291560969267882, 0.29735169331007805, 0.19609665515132413, -0.01050847514964178, 0.3176422842717084, 0.22657640260324752, 0.0783602453047668, 0.2088321277559021, -0.2203548902927823, 0.06260825648740695, -0.21184954167442246, -0.14093558683508775, -0.20708922182726436, 0.06876870484794932, -0.10859151812192532, -0.1929417429048416, 0.32894160540733675, 0.10296584335053816, 0.16622465004019413, 0.04030392223452456, 0.3314563608762339, 0.004510704281801072, 0.18994014198470344, -0.03798811196138824, 0.2733847565343943, 0.09612682068815631, 0.0896372720191296, -0.18736393265358178, 0.034675702700785696, 0.0015505645560087078] |
711.3285 | The Inhomogeneous Invariance Quantum Supergroup of Supersymmetry Algebra | We consider an inhomogeneous quantum supergroup which leaves invariant a
supersymmetric particle algebra. The quantum sub-supergroups of this
inhomogeneous quantum supergroup are investigated.
| hep-th | we consider an inhomogeneous quantum supergroup which leaves invariant a supersymmetric particle algebra the quantum subsupergroups of this inhomogeneous quantum supergroup are investigated | [['we', 'consider', 'an', 'inhomogeneous', 'quantum', 'supergroup', 'which', 'leaves', 'invariant', 'a', 'supersymmetric', 'particle', 'algebra', 'the', 'quantum', 'subsupergroups', 'of', 'this', 'inhomogeneous', 'quantum', 'supergroup', 'are', 'investigated']] | [-0.19947885992852124, 0.2781891850179157, -0.058413033542985264, 0.1192261848164807, -0.08731794691729275, -0.21224189175038852, -0.15843941170764578, 0.3493020526048812, -0.254383361813697, -0.16211971945383333, 0.06285279772286727, -0.20008218644017522, -0.1473356435414065, 0.09978941682493314, -0.0833396661433984, 0.06685323632237586, -0.0010510347148572857, 0.12953622469847853, -0.11946424791081385, -0.24843564613679933, 0.395318769257177, 0.027281399017242206, 0.22662458738142793, -0.07144641622223637, 0.22072440677915106, 0.05434471713802354, 0.019307727078822525, -0.03430881876159798, -0.21140264004299586, 0.09373538416217674, 0.3067827019840479, -0.03517260444773869, 0.1000772040675987, -0.4003355174579404, -0.20298241332850672, 0.14891349710524082, 0.17237245966680348, 0.19064050440316682, -0.12128992564976215, -0.3910334752872586, 0.00473029125185514, -0.22070984068241986, -0.17084230584177104, 0.016381970776075668, 0.017872861290181227, -0.21225032201883468, -0.14009719172661955, 0.08597942936996167, 0.06405823677778244, 0.10696230909194458, 0.00797336161221293, 0.02071531689514152, -0.022296913984146984, 0.010588129876520146, -0.1310461109176024, -0.00456090705384585, 0.24829415439374067, -0.1680915002943948, -0.2516168503683399, 0.3829360558566722, -0.017948997820812194, -0.26260262016545644, 0.07269184066998688, -0.07976765219460834, -0.2379101401152597, 0.04049539447508075, 0.0910609092732722, 0.1281486540524797, -0.14705577086318622, 0.3319539893841879, -0.12120504262433811, 0.06196948424489661, 0.02154730656184256, 0.06600666643035683, 0.22457388293167407, 0.07233236282428895, 0.07309927859089592, 0.19327067786997015, 0.03430863336490637, -0.2424668429250067, -0.37977308509024704, -0.25169968212404376, -0.10304804368537258, 0.2570372652262449, -0.10155626377937468, -0.22673274214718153, 0.397622288628058, 0.10550411748276516, 0.14501854953017423, 0.04511386071945625, 0.16598865584554998, 0.20442596899176185, 0.005625705150040713, 0.06916480727324431, 0.137951655482704, 0.28007727124812926, -0.025826440192759037, -0.2578164850446311, -0.18325151814232496, 0.10990667351606218] |
711.3286 | The annealing induced extraordinary properties of SI based ZNO film
grown by RF sputtering | Pb(Zr0.52Ti0.48)O3 (PZT) thin films were in situ deposited by pulsed laser
deposition (PLD) on Pt/Ti/SiO2/Si substrates using a template layer derived by
sol-gel method. A 0.1-$\mu$m-thick PZT layer with (111) or (100)-preferred
orientation was first deposited onto Pt/Ti/SiO2/Si substrates using the sol-gel
method, and than a PZT layer with thickness of 1$\mu$m was in situ deposited by
PLD on the above-mentioned PZT layer. The crystalline phases and the preferred
orientations of the PZT films were investigated by X-ray diffraction analysis.
Surface and cross-sectional morphologies were observed by scanning electron
microscopy and transmission electron microscopy. The electrical properties of
the films were evaluated by measuring their P-E hysteresis loops and dielectric
constants. The preferred orientation of the films can be controlled using the
template layer derived by the sol-gel method. The deposition temperature
required to obtain the perovskite phase in this process is approximately 460
degrees C, and is significantly lower than that in the case of direct film
deposition by PLD on the Pt/Ti/SiO2/Si substrates.
Keywords: lead zirconate titanate (PZT), thin film, sol-gel method, laser
ablation, electrical properties
| cs.OH | pbzr052ti048o3 pzt thin films were in situ deposited by pulsed laser deposition pld on pttisio2si substrates using a template layer derived by solgel method a 01mumthick pzt layer with 111 or 100preferred orientation was first deposited onto pttisio2si substrates using the solgel method and than a pzt layer with thickness of 1mum was in situ deposited by pld on the abovementioned pzt layer the crystalline phases and the preferred orientations of the pzt films were investigated by xray diffraction analysis surface and crosssectional morphologies were observed by scanning electron microscopy and transmission electron microscopy the electrical properties of the films were evaluated by measuring their pe hysteresis loops and dielectric constants the preferred orientation of the films can be controlled using the template layer derived by the solgel method the deposition temperature required to obtain the perovskite phase in this process is approximately 460 degrees c and is significantly lower than that in the case of direct film deposition by pld on the pttisio2si substrates keywords lead zirconate titanate pzt thin film solgel method laser ablation electrical properties | [['pbzr052ti048o3', 'pzt', 'thin', 'films', 'were', 'in', 'situ', 'deposited', 'by', 'pulsed', 'laser', 'deposition', 'pld', 'on', 'pttisio2si', 'substrates', 'using', 'a', 'template', 'layer', 'derived', 'by', 'solgel', 'method', 'a', '01mumthick', 'pzt', 'layer', 'with', '111', 'or', '100preferred', 'orientation', 'was', 'first', 'deposited', 'onto', 'pttisio2si', 'substrates', 'using', 'the', 'solgel', 'method', 'and', 'than', 'a', 'pzt', 'layer', 'with', 'thickness', 'of', '1mum', 'was', 'in', 'situ', 'deposited', 'by', 'pld', 'on', 'the', 'abovementioned', 'pzt', 'layer', 'the', 'crystalline', 'phases', 'and', 'the', 'preferred', 'orientations', 'of', 'the', 'pzt', 'films', 'were', 'investigated', 'by', 'xray', 'diffraction', 'analysis', 'surface', 'and', 'crosssectional', 'morphologies', 'were', 'observed', 'by', 'scanning', 'electron', 'microscopy', 'and', 'transmission', 'electron', 'microscopy', 'the', 'electrical', 'properties', 'of', 'the', 'films', 'were', 'evaluated', 'by', 'measuring', 'their', 'pe', 'hysteresis', 'loops', 'and', 'dielectric', 'constants', 'the', 'preferred', 'orientation', 'of', 'the', 'films', 'can', 'be', 'controlled', 'using', 'the', 'template', 'layer', 'derived', 'by', 'the', 'solgel', 'method', 'the', 'deposition', 'temperature', 'required', 'to', 'obtain', 'the', 'perovskite', 'phase', 'in', 'this', 'process', 'is', 'approximately', '460', 'degrees', 'c', 'and', 'is', 'significantly', 'lower', 'than', 'that', 'in', 'the', 'case', 'of', 'direct', 'film', 'deposition', 'by', 'pld', 'on', 'the', 'pttisio2si', 'substrates', 'keywords', 'lead', 'zirconate', 'titanate', 'pzt', 'thin', 'film', 'solgel', 'method', 'laser', 'ablation', 'electrical', 'properties']] | [-0.05919683065737693, 0.23410452681127936, 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711.3287 | Parametric Yield Analysis of Mems via Statistical Methods | This paper considers a developing theory on the effects of inevitable process
variations during the fabrication of MEMS and other microsystems. The effects
on the performance and design yield of the microsystems devices are analyzed
and presented. A novel methodology in the design cycle of MEMS and other
microsystems is briefly introduced. This paper describes the initial steps of
this methodology that is aimed at counteracting the parametric variations in
the product cycle of microsystems. It is based on a concept of worst-case
analysis that has proven successful in the parent IC technology. Issues ranging
from the level of abstraction of the microsystem models to the availability of
such models are addressed
| cs.OH | this paper considers a developing theory on the effects of inevitable process variations during the fabrication of mems and other microsystems the effects on the performance and design yield of the microsystems devices are analyzed and presented a novel methodology in the design cycle of mems and other microsystems is briefly introduced this paper describes the initial steps of this methodology that is aimed at counteracting the parametric variations in the product cycle of microsystems it is based on a concept of worstcase analysis that has proven successful in the parent ic technology issues ranging from the level of abstraction of the microsystem models to the availability of such models are addressed | [['this', 'paper', 'considers', 'a', 'developing', 'theory', 'on', 'the', 'effects', 'of', 'inevitable', 'process', 'variations', 'during', 'the', 'fabrication', 'of', 'mems', 'and', 'other', 'microsystems', 'the', 'effects', 'on', 'the', 'performance', 'and', 'design', 'yield', 'of', 'the', 'microsystems', 'devices', 'are', 'analyzed', 'and', 'presented', 'a', 'novel', 'methodology', 'in', 'the', 'design', 'cycle', 'of', 'mems', 'and', 'other', 'microsystems', 'is', 'briefly', 'introduced', 'this', 'paper', 'describes', 'the', 'initial', 'steps', 'of', 'this', 'methodology', 'that', 'is', 'aimed', 'at', 'counteracting', 'the', 'parametric', 'variations', 'in', 'the', 'product', 'cycle', 'of', 'microsystems', 'it', 'is', 'based', 'on', 'a', 'concept', 'of', 'worstcase', 'analysis', 'that', 'has', 'proven', 'successful', 'in', 'the', 'parent', 'ic', 'technology', 'issues', 'ranging', 'from', 'the', 'level', 'of', 'abstraction', 'of', 'the', 'microsystem', 'models', 'to', 'the', 'availability', 'of', 'such', 'models', 'are', 'addressed']] | [-0.13611809582965048, 0.097076546011002, -0.06264043489188355, -0.019608458763335484, -0.010125865444674023, -0.12568998466927692, 0.026117741684304616, 0.35319945697223637, -0.24569598065655945, -0.29734084931468324, 0.1565725122688621, -0.23097559709068655, -0.19049653186292353, 0.24498660710274375, -0.135613045547091, 0.07491024130805661, 0.07284194642644641, -0.010465879808180034, -0.022233341018103862, -0.2235445568450294, 0.3213403542634166, 0.10328254521924204, 0.327559404540807, 0.05378810463506462, 0.12047131292638369, -0.02350201875170959, -0.05927028048297091, -0.0043830437727072945, -0.1090197402296066, 0.16569468582747504, 0.24955693835551887, 0.15299243712589877, 0.3124645033344028, -0.44383487383103265, -0.21933031316439155, 0.04479307710425928, 0.08361353725194931, 0.09798490345045659, -0.060830066777790695, -0.24422652111388743, 0.07432769623950922, -0.17858823338298993, -0.11692471425327053, -0.02257182391830221, 0.004385198682679662, 0.02070791123800778, -0.21489869822315605, -0.00015748512565291354, 0.06575700057770259, 0.07087897478153796, -0.03714520047716568, -0.13048591639380902, 0.018332924515042186, 0.11656370994335573, 0.031734389289080615, -0.03269528804516345, 0.16438789825354302, -0.11725112068857665, -0.13637290081741021, 0.39330456802469727, 0.0034075982839567587, -0.15265771462665206, 0.19987185982089223, -0.07426694452962172, -0.15241899224929512, 0.07679566873360143, 0.21302401679089858, 0.10295008379866236, -0.18686836224307107, 0.06257857415974806, 0.07397512878690447, 0.14551249083264597, 0.02250361431340155, 0.04356612608535215, 0.1876598649479482, 0.28283353716999826, 0.03530114107499165, 0.14375245513032756, -0.07780763636401389, -0.07734535207938668, -0.2902289974403435, -0.14988122394840633, -0.15213857882606266, -0.0012548322941126702, -0.021408985069034055, -0.17159238196992582, 0.4261808423159112, 0.18664397536278038, 0.12759948706038163, -0.0040290192201999685, 0.3485404801093474, 0.10980056666137118, 0.06207132454229785, -0.005359275129324358, 0.2668350429864534, 0.10427181098410594, 0.1347757256548253, -0.22179875424522574, 0.12640973412531561, 0.008051789024778242] |
711.3288 | Electrostatically-Driven Resonator on Soi with Improved Temperature
Stability | This paper deals with a single-crystal-silicon (SCS) MEMS resonator with
improved temperature stability. While simulations have shown that the
temperature coefficient of resonant frequency can be down to 1 ppm/degrees C,
preliminary measurements on non-optimised structures gave evidence of a
temperature coefficient of 29 ppm/degrees C. Design, optimisation, experimental
results with post process simulation and prospective work are presented.
| cs.OH | this paper deals with a singlecrystalsilicon scs mems resonator with improved temperature stability while simulations have shown that the temperature coefficient of resonant frequency can be down to 1 ppmdegrees c preliminary measurements on nonoptimised structures gave evidence of a temperature coefficient of 29 ppmdegrees c design optimisation experimental results with post process simulation and prospective work are presented | [['this', 'paper', 'deals', 'with', 'a', 'singlecrystalsilicon', 'scs', 'mems', 'resonator', 'with', 'improved', 'temperature', 'stability', 'while', 'simulations', 'have', 'shown', 'that', 'the', 'temperature', 'coefficient', 'of', 'resonant', 'frequency', 'can', 'be', 'down', 'to', '1', 'ppmdegrees', 'c', 'preliminary', 'measurements', 'on', 'nonoptimised', 'structures', 'gave', 'evidence', 'of', 'a', 'temperature', 'coefficient', 'of', '29', 'ppmdegrees', 'c', 'design', 'optimisation', 'experimental', 'results', 'with', 'post', 'process', 'simulation', 'and', 'prospective', 'work', 'are', 'presented']] | [-0.13788963061649287, 0.1190569847156959, -0.05447497341914901, -0.11140878720246812, -0.05845958589842277, -0.17814129790557282, 0.07457677572840891, 0.41979569915149895, -0.1811010249408095, -0.33712116718691376, 0.12661339665230895, -0.280884093322259, -0.113420904913385, 0.26536998314051224, -0.01693298035908291, 0.09439199248195759, 0.09224509106882449, -0.020014042101268257, -0.053693363430543935, -0.21419897143329894, 0.23055999842888145, 0.12968580905414587, 0.29299838830983, 0.09309535423692848, 0.05613423844001123, -0.08306314719707839, -0.029401526769756207, 0.05017825275925653, -0.18234442286341487, 0.0461957078659907, 0.261864077599187, 0.04614058252523786, 0.23316440392019494, -0.3802100144592779, -0.20897608834119247, 0.01846220627027963, 0.11780306956747413, 0.0679878537240646, -0.11111702463365093, -0.2249738829393339, 0.08989135744715375, -0.13372111656436964, -0.14065731007472745, -0.08308378088154963, 0.013026545805457448, 0.00902679604041623, -0.30272502545267344, 0.10502104537694582, 0.04562517331214622, 0.09727585691559527, -0.047913667770834376, -0.17890803801960178, 0.011231768111299192, 0.018733318980334195, 0.0008401015236034125, 0.03144391116386812, 0.1688504480490727, -0.04475136335323831, -0.13697840274211817, 0.3283965022939291, -0.07053161821594196, -0.12356994342657604, 0.19003941102086433, -0.13459794836152078, -0.08861216909385153, 0.11914101063406893, 0.19129506463650614, 0.07648719184466504, -0.14124417237430212, 0.04659553807557261, 0.012217256140762143, 0.21629952743283606, 0.079860970365449, -0.0033211498271806966, 0.17344676836260728, 0.20370157735721608, -0.010606932333238157, 0.13983348561825032, -0.06366297900344112, -0.025272529339417815, -0.2587284376246056, -0.14352000182095384, -0.11393484237071659, 0.050413792117199464, -0.07667004048432448, -0.1112450667730757, 0.3700970291476032, 0.16574150665629922, 0.2023780944790425, 0.049574088654480875, 0.28637994333569494, 0.12296296088814936, 0.02678040648295012, 0.017775537446141243, 0.26076835023039685, 0.1492541829647962, 0.14113418419063756, -0.2364644293640075, 0.03658954439535072, -0.031661884807233164] |
711.3289 | Electromechanical Reliability Testing of Three-Axial Silicon Force
Sensors | This paper reports on the systematic electromechanical characterization of a
new three-axial force sensor used in dimensional metrology of micro components.
The siliconbased sensor system consists of piezoresistive mechanicalstress
transducers integrated in thin membrane hinges supporting a suspended flexible
cross structure. The mechanical behavior of the fragile micromechanical
structure isanalyzed for both static and dynamic load cases. This work
demonstrates that the silicon microstructure withstands static forces of 1.16N
applied orthogonally to the front-side of the structure. A statistical Weibull
analysis of the measured data shows that these values are significantly reduced
if the normal force is applied to the back of the sensor. Improvements of the
sensor system design for future development cycles are derived from the
measurement results.
| cs.OH | this paper reports on the systematic electromechanical characterization of a new threeaxial force sensor used in dimensional metrology of micro components the siliconbased sensor system consists of piezoresistive mechanicalstress transducers integrated in thin membrane hinges supporting a suspended flexible cross structure the mechanical behavior of the fragile micromechanical structure isanalyzed for both static and dynamic load cases this work demonstrates that the silicon microstructure withstands static forces of 116n applied orthogonally to the frontside of the structure a statistical weibull analysis of the measured data shows that these values are significantly reduced if the normal force is applied to the back of the sensor improvements of the sensor system design for future development cycles are derived from the measurement results | [['this', 'paper', 'reports', 'on', 'the', 'systematic', 'electromechanical', 'characterization', 'of', 'a', 'new', 'threeaxial', 'force', 'sensor', 'used', 'in', 'dimensional', 'metrology', 'of', 'micro', 'components', 'the', 'siliconbased', 'sensor', 'system', 'consists', 'of', 'piezoresistive', 'mechanicalstress', 'transducers', 'integrated', 'in', 'thin', 'membrane', 'hinges', 'supporting', 'a', 'suspended', 'flexible', 'cross', 'structure', 'the', 'mechanical', 'behavior', 'of', 'the', 'fragile', 'micromechanical', 'structure', 'isanalyzed', 'for', 'both', 'static', 'and', 'dynamic', 'load', 'cases', 'this', 'work', 'demonstrates', 'that', 'the', 'silicon', 'microstructure', 'withstands', 'static', 'forces', 'of', '116n', 'applied', 'orthogonally', 'to', 'the', 'frontside', 'of', 'the', 'structure', 'a', 'statistical', 'weibull', 'analysis', 'of', 'the', 'measured', 'data', 'shows', 'that', 'these', 'values', 'are', 'significantly', 'reduced', 'if', 'the', 'normal', 'force', 'is', 'applied', 'to', 'the', 'back', 'of', 'the', 'sensor', 'improvements', 'of', 'the', 'sensor', 'system', 'design', 'for', 'future', 'development', 'cycles', 'are', 'derived', 'from', 'the', 'measurement', 'results']] | [-0.15734634630518549, 0.10078077113400374, -0.07624502306209942, -0.06577164124283971, -0.03820431099578353, -0.12093066875742556, 0.02166440518239738, 0.3772056470143384, -0.26989645831254794, -0.27983044908815546, 0.060907886337472836, -0.2629897785292746, -0.15339862992425032, 0.26150778829971133, -0.08020730958127513, 0.10756615900491256, 0.0692790159172828, -0.00698866730893095, -0.014699952763200191, -0.16192805586715936, 0.2562009091368587, 0.07607402952371872, 0.3980799668934196, 0.0212312046406341, 0.10278378967858112, 0.01995182843328903, -0.006899363650330182, 0.0674884130623374, -0.11481908909213259, 0.160744730736418, 0.252909990878583, 0.026825861487505508, 0.2236482016561585, -0.47650350936977515, -0.20903786122076343, 0.03811390303655634, 0.06505011036542468, 0.07756204656244994, -0.05246890034899918, -0.27043833600052086, 0.08296025731221468, -0.15225980861979568, -0.1225060355199244, -0.05798592057143306, 0.01489045329899768, 0.03276947593810197, -0.22849764668679765, 0.047698559610831456, 0.06259291008885565, 0.059931731650380994, -0.09912098004233799, -0.10959970723869729, 0.014526414247390268, 0.15108274135754668, -0.00865563397408174, -0.03308038737179294, 0.2685592549675895, -0.10585161003542327, -0.10084926379956947, 0.37253918384747775, -0.03202590748571373, -0.1670752851742095, 0.1599474759061885, -0.10375609313908579, -0.09778069418549923, 0.11549309713380604, 0.21093843587481514, 0.07707831081291981, -0.19463118906524274, 0.027452013840204393, 0.041416304852363875, 0.20691434414816443, 0.069865251379489, 0.004237035922164194, 0.19329070217168792, 0.2523323500655383, 0.06326363044674257, 0.17319338982382887, -0.1208035897700405, -0.04030382497324448, -0.2810391153947547, -0.15630976166897292, -0.14678130107570503, 0.046218916566054945, -0.09437354957543871, -0.2036321763880551, 0.38037407057006556, 0.1543046218711393, 0.14512475498887742, 0.0010997928630817554, 0.34915559522903944, 0.046523974851127074, 0.09292738634193766, -0.0019467290478822742, 0.32431059010358976, 0.1510066663653686, 0.14540107014545356, -0.21659730565694063, 0.061351066302700805, -0.032913706887609744] |
711.329 | An Active Chaotic Micromixer Integrating Thermal Actuation Associating
PDMS and Silicon Microtechnology | Due to scaling laws, in microfluidic, flows are laminar. Consequently, mixing
between two liquids is mainly obtained by natural diffusion which may take a
long time or equivalently requires centimetre length channels. To reduce time
and length for mixing, it is possible to generate chaotic-like flows either by
modifying the channel geometry or by creating an external perturbation of the
flow. In this paper, an active micromixer is presented consisting on thermal
actuation with heating resistors. In order to disturb the liquid flow, an
oscillating transverse flow is generated by heating the liquid. Depending on
the value of boiling point, either bubble expansion or volumetric dilation
controlled the transverse flow amplitude. A chaotic like mixing is then induced
under particular conditions depending on volume expansion, liquid velocity,
frequency of actuation... This solution presents the advantage to achieve
mixing in a very short time (1s) and along a short channel distance (channel
width). It can also be integrated in a more complex device due to actuator
integration with microfluidics.
| cs.OH | due to scaling laws in microfluidic flows are laminar consequently mixing between two liquids is mainly obtained by natural diffusion which may take a long time or equivalently requires centimetre length channels to reduce time and length for mixing it is possible to generate chaoticlike flows either by modifying the channel geometry or by creating an external perturbation of the flow in this paper an active micromixer is presented consisting on thermal actuation with heating resistors in order to disturb the liquid flow an oscillating transverse flow is generated by heating the liquid depending on the value of boiling point either bubble expansion or volumetric dilation controlled the transverse flow amplitude a chaotic like mixing is then induced under particular conditions depending on volume expansion liquid velocity frequency of actuation this solution presents the advantage to achieve mixing in a very short time 1s and along a short channel distance channel width it can also be integrated in a more complex device due to actuator integration with microfluidics | [['due', 'to', 'scaling', 'laws', 'in', 'microfluidic', 'flows', 'are', 'laminar', 'consequently', 'mixing', 'between', 'two', 'liquids', 'is', 'mainly', 'obtained', 'by', 'natural', 'diffusion', 'which', 'may', 'take', 'a', 'long', 'time', 'or', 'equivalently', 'requires', 'centimetre', 'length', 'channels', 'to', 'reduce', 'time', 'and', 'length', 'for', 'mixing', 'it', 'is', 'possible', 'to', 'generate', 'chaoticlike', 'flows', 'either', 'by', 'modifying', 'the', 'channel', 'geometry', 'or', 'by', 'creating', 'an', 'external', 'perturbation', 'of', 'the', 'flow', 'in', 'this', 'paper', 'an', 'active', 'micromixer', 'is', 'presented', 'consisting', 'on', 'thermal', 'actuation', 'with', 'heating', 'resistors', 'in', 'order', 'to', 'disturb', 'the', 'liquid', 'flow', 'an', 'oscillating', 'transverse', 'flow', 'is', 'generated', 'by', 'heating', 'the', 'liquid', 'depending', 'on', 'the', 'value', 'of', 'boiling', 'point', 'either', 'bubble', 'expansion', 'or', 'volumetric', 'dilation', 'controlled', 'the', 'transverse', 'flow', 'amplitude', 'a', 'chaotic', 'like', 'mixing', 'is', 'then', 'induced', 'under', 'particular', 'conditions', 'depending', 'on', 'volume', 'expansion', 'liquid', 'velocity', 'frequency', 'of', 'actuation', 'this', 'solution', 'presents', 'the', 'advantage', 'to', 'achieve', 'mixing', 'in', 'a', 'very', 'short', 'time', '1s', 'and', 'along', 'a', 'short', 'channel', 'distance', 'channel', 'width', 'it', 'can', 'also', 'be', 'integrated', 'in', 'a', 'more', 'complex', 'device', 'due', 'to', 'actuator', 'integration', 'with', 'microfluidics']] | [-0.1707715262053257, 0.24387645849726272, -0.07397511043763232, -0.02706456651919455, -0.06059212558154416, -0.15875926276480423, 0.0057535175229921675, 0.37984246298236984, -0.3237106811055647, -0.2686223785692294, 0.1386679125737698, -0.22524546124068798, -0.07063625023251266, 0.2071475019481676, -0.05711630072688595, 0.0335985972224513, 0.027581033105629364, -0.008035070060508414, -0.03981099441305213, -0.1601918509640243, 0.2645348309084684, 0.06019711970639903, 0.2793343732455036, 0.05600068020846395, 0.10946455559964566, -0.030704205470447915, -0.013577990006264631, 0.03809944026094551, -0.1375461255444125, 0.03405749145895243, 0.19239901187427763, -0.013824398052834329, 0.22167486309938664, -0.46987878490195034, -0.23989930174623927, 0.07248997733473689, 0.14538372647768397, 0.10429349621543745, -0.03466030416036249, -0.2430687103742024, 0.050095846627040634, -0.15500077500612297, -0.11258709494168648, -0.03531440831388214, 0.051752678809515645, 0.006581075258595991, -0.2799062266879316, 0.09953625568440268, 0.04824838836378019, 0.04858039877200056, -0.0062068589419747395, -0.023456366566408957, -0.005542096227318758, 0.11410488384093956, 0.06677824122709267, 0.03028963861219208, 0.1924728021009027, -0.1429468915098585, -0.0559402472225927, 0.3776997977069446, -0.08123908399041586, -0.23584959609087536, 0.1976732935162588, -0.11628135346386227, -0.008714860593456598, 0.1980747396952384, 0.21348034109022201, 0.06559387937678755, -0.15538673349475998, 0.010621662988255377, 0.007654749505620982, 0.20668428314664716, 0.13289235288781734, -0.004255951892229773, 0.2067503716707939, 0.20205269282728078, 0.10752578857604281, 0.13941436187936537, -0.09147886496308881, -0.10244788507233829, -0.2785074120065907, -0.13656700696585522, -0.15932875993062875, 0.08487550222863709, -0.08282145394072618, -0.17336665561777495, 0.35792942029989455, 0.09416125797170458, 0.19877914949652872, 0.012169409754625079, 0.32838272350186126, 0.10363192126498602, 0.07588596593233801, 0.08642250939460826, 0.23240509988326744, 0.13032882957486436, 0.12873079942558738, -0.25013418191866504, 0.09097896589775614, 0.06450720151908518] |
711.3291 | Resolution Limits for Resonant Mems Sensors Based on Discrete Relay
Feedback Techniques | This paper is devoted to the analysis of resonant MEMS sensors based on
discrete relay feedback techniques. One drawback of such techniques is that
some synchronization usually occurs between the discrete part and the
continuous part of the system: this results in sensor responses that are very
similar to the curves known as devil's staircases, i.e. the frequency does not
vary smoothly with the sensor's input. The main contribution of this paper is a
theoretical calculation of the resolution of such systems. The resolutions of
two existing resonant MEMS architectures are then calculated and these results
are discussed.
| cs.OH | this paper is devoted to the analysis of resonant mems sensors based on discrete relay feedback techniques one drawback of such techniques is that some synchronization usually occurs between the discrete part and the continuous part of the system this results in sensor responses that are very similar to the curves known as devils staircases ie the frequency does not vary smoothly with the sensors input the main contribution of this paper is a theoretical calculation of the resolution of such systems the resolutions of two existing resonant mems architectures are then calculated and these results are discussed | [['this', 'paper', 'is', 'devoted', 'to', 'the', 'analysis', 'of', 'resonant', 'mems', 'sensors', 'based', 'on', 'discrete', 'relay', 'feedback', 'techniques', 'one', 'drawback', 'of', 'such', 'techniques', 'is', 'that', 'some', 'synchronization', 'usually', 'occurs', 'between', 'the', 'discrete', 'part', 'and', 'the', 'continuous', 'part', 'of', 'the', 'system', 'this', 'results', 'in', 'sensor', 'responses', 'that', 'are', 'very', 'similar', 'to', 'the', 'curves', 'known', 'as', 'devils', 'staircases', 'ie', 'the', 'frequency', 'does', 'not', 'vary', 'smoothly', 'with', 'the', 'sensors', 'input', 'the', 'main', 'contribution', 'of', 'this', 'paper', 'is', 'a', 'theoretical', 'calculation', 'of', 'the', 'resolution', 'of', 'such', 'systems', 'the', 'resolutions', 'of', 'two', 'existing', 'resonant', 'mems', 'architectures', 'are', 'then', 'calculated', 'and', 'these', 'results', 'are', 'discussed']] | [-0.152749136917065, 0.08961474457375553, -0.062454576542296886, 0.00874009389639357, -0.07958414571891938, -0.13312856767478645, -0.007092394483541804, 0.396896488812505, -0.27613132690288583, -0.277329225539781, 0.1433739632365712, -0.27766651018731753, -0.1934381531865089, 0.23078674301315022, -0.11649855051298949, 0.06607347169929013, 0.05581065469150603, 0.04469208768568933, -0.04512335580051401, -0.20286418133111175, 0.33318654501012396, 0.030491643775330514, 0.27413618200629647, 0.028624637071423386, 0.0805583915825249, -0.028411913185608477, -0.048213474110377075, -0.00854283011380621, -0.11392792063597139, 0.12023436282856428, 0.2866173422306168, 0.08102512595775936, 0.2655616091678337, -0.41211115433929524, -0.20276019267965945, 0.0946589510529112, 0.1393686922727989, 0.09600517064408988, -0.028185999440266847, -0.22716297999936708, 0.09132039952281938, -0.14887220579750685, -0.08579840643179355, -0.022068405177026074, -0.022532935178249468, 0.09310111646239105, -0.23469219054095447, 0.024188893314983164, 0.1019870128900725, 0.03892537257729136, -0.07790571762419933, -0.10515761416647773, 0.0041356146554177515, 0.1488238575592713, 0.04172551101881403, -0.013616826983966998, 0.1368219629690355, -0.09744697352823782, -0.11518190041355485, 0.3754304229229575, -0.005241099257991478, -0.19373675048047181, 0.23098858172425582, -0.1269368876094873, -0.13764630746077366, 0.12801057290361853, 0.15668331476508127, 0.10750444800764018, -0.1441983482170831, 0.028734286865742156, 0.012496976542989818, 0.19158422403104072, 0.048470912311150104, 0.06765629912308437, 0.15826155327032415, 0.1897574257466714, 0.05278294542044097, 0.11366344662977154, -0.09242999258128051, -0.08268073889217814, -0.3111198447283585, -0.09497231053430777, -0.20839523005166224, -0.004443311518413366, -0.04071609614083154, -0.17884739479810305, 0.40069737572375, 0.15143712133891424, 0.20159059518720118, 0.047033424249242006, 0.3881587351919437, 0.1376304543293224, 0.07614231297309149, 0.007663088655859536, 0.2595134409971901, 0.12025285754067709, 0.12430169182943598, -0.2042225387840703, 0.04003488367936593, 0.017316498724762732] |
711.3292 | A Silicon-Based Micro Gas Turbine Engine for Power Generation | This paper reports on our research in developing a micro power generation
system based on gas turbine engine and piezoelectric converter. The micro gas
turbine engine consists of a micro combustor, a turbine and a centrifugal
compressor. Comprehensive simulation has been implemented to optimal the
component design. We have successfully demonstrated a silicon-based micro
combustor, which consists of seven layers of silicon structures. A
hairpin-shaped design is applied to the fuel/air recirculation channel. The
micro combustor can sustain a stable combustion with an exit temperature as
high as 1600 K. We have also successfully developed a micro turbine device,
which is equipped with enhanced micro air-bearings and driven by compressed
air. A rotation speed of 15,000 rpm has been demonstrated during lab test. In
this paper, we will introduce our research results major in the development of
micro combustor and micro turbine test device.
| cs.OH | this paper reports on our research in developing a micro power generation system based on gas turbine engine and piezoelectric converter the micro gas turbine engine consists of a micro combustor a turbine and a centrifugal compressor comprehensive simulation has been implemented to optimal the component design we have successfully demonstrated a siliconbased micro combustor which consists of seven layers of silicon structures a hairpinshaped design is applied to the fuelair recirculation channel the micro combustor can sustain a stable combustion with an exit temperature as high as 1600 k we have also successfully developed a micro turbine device which is equipped with enhanced micro airbearings and driven by compressed air a rotation speed of 15000 rpm has been demonstrated during lab test in this paper we will introduce our research results major in the development of micro combustor and micro turbine test device | [['this', 'paper', 'reports', 'on', 'our', 'research', 'in', 'developing', 'a', 'micro', 'power', 'generation', 'system', 'based', 'on', 'gas', 'turbine', 'engine', 'and', 'piezoelectric', 'converter', 'the', 'micro', 'gas', 'turbine', 'engine', 'consists', 'of', 'a', 'micro', 'combustor', 'a', 'turbine', 'and', 'a', 'centrifugal', 'compressor', 'comprehensive', 'simulation', 'has', 'been', 'implemented', 'to', 'optimal', 'the', 'component', 'design', 'we', 'have', 'successfully', 'demonstrated', 'a', 'siliconbased', 'micro', 'combustor', 'which', 'consists', 'of', 'seven', 'layers', 'of', 'silicon', 'structures', 'a', 'hairpinshaped', 'design', 'is', 'applied', 'to', 'the', 'fuelair', 'recirculation', 'channel', 'the', 'micro', 'combustor', 'can', 'sustain', 'a', 'stable', 'combustion', 'with', 'an', 'exit', 'temperature', 'as', 'high', 'as', '1600', 'k', 'we', 'have', 'also', 'successfully', 'developed', 'a', 'micro', 'turbine', 'device', 'which', 'is', 'equipped', 'with', 'enhanced', 'micro', 'airbearings', 'and', 'driven', 'by', 'compressed', 'air', 'a', 'rotation', 'speed', 'of', '15000', 'rpm', 'has', 'been', 'demonstrated', 'during', 'lab', 'test', 'in', 'this', 'paper', 'we', 'will', 'introduce', 'our', 'research', 'results', 'major', 'in', 'the', 'development', 'of', 'micro', 'combustor', 'and', 'micro', 'turbine', 'test', 'device']] | [-0.11669752741327614, 0.13508591275839676, -0.04950923872062228, -0.10927505297979838, -0.05728582938818235, -0.15834697528453676, -0.011993207416208592, 0.3722786362427221, -0.20365402094600066, -0.328677096659921, 0.13715425416135268, -0.2482750443544921, -0.08440223831722748, 0.30696581565106, -0.08454151596860882, 0.12420067360664022, 0.03728696064610349, -0.012465510287807442, 0.01337678878609924, -0.13504549211323996, 0.19187838629439052, 0.14658673070239978, 0.3599534476057849, 0.06385683306020645, 0.19971866700404756, -0.12070394553158852, 0.03752289090672849, 0.04567639732366087, -0.1146029484819811, 0.10287348585347579, 0.25927278463741843, 0.06519247578378294, 0.3207470008080274, -0.4888224671791557, -0.2522318735161245, -0.0011557097920597019, 0.10277393015600006, 0.034629118586168954, -0.13087992767744344, -0.22920268659256923, 0.11290524752390846, -0.26160362019846345, -0.10421013317733321, -0.025796940319017102, 0.0009694505404208748, 0.04965418650650642, -0.24280436784947212, -0.03198574491449415, 0.039451724959907945, 0.10634986898684742, -0.019646043290751397, -0.06555240700254217, 0.017144489400482302, 0.12073635340760082, -0.024400071277853732, 0.011221051009529283, 0.2743587563003735, -0.05084174556631438, -0.09625915222814385, 0.4059683882539541, -0.030549278228648637, -0.14943303430492294, 0.18611453464262936, -0.10450961344717989, -0.07607162881537642, 0.10591247385944909, 0.2634886589137391, 0.07711934112739982, -0.19075449979798476, -0.024070936958567882, -0.03357221387510358, 0.2141162920841606, 0.11639286174019142, -0.08684033859835964, 0.24187752054217207, 0.33471507883407703, 0.03455591340496821, 0.20262677473152174, -0.1681046239805447, -0.04936561460646106, -0.21284014413553015, -0.16534312935808385, -0.11481353980948178, 0.024519055662020832, -0.043141709286047304, -0.12520265547742307, 0.41154736126313957, 0.14530561345590043, 0.09867575636107317, -0.05129387107362945, 0.38092461791099375, 0.05473985785985706, 0.10378192476010029, 0.07978048571057512, 0.24419316458581408, 0.10585851910766739, 0.1818972592304369, -0.19947018078200415, 0.028388642746763317, 0.007933262432064585] |
711.3293 | The dog-and-rabbit chase problem as an exercise in introductory
kinematics | The purpose of this article is to present a simple solution of the classic
dog-and-rabbit chase problem which emphasizes the use of concepts of elementary
kinematics and, therefore, can be used in introductory mechanics course. The
article is based on the teaching experience of introductory mechanics course at
Novosibirsk State University for first year physics students which are just
beginning to use advanced mathematical methods in physics problems. We hope it
will be also useful for students and teachers at other universities too.
| physics.ed-ph | the purpose of this article is to present a simple solution of the classic dogandrabbit chase problem which emphasizes the use of concepts of elementary kinematics and therefore can be used in introductory mechanics course the article is based on the teaching experience of introductory mechanics course at novosibirsk state university for first year physics students which are just beginning to use advanced mathematical methods in physics problems we hope it will be also useful for students and teachers at other universities too | [['the', 'purpose', 'of', 'this', 'article', 'is', 'to', 'present', 'a', 'simple', 'solution', 'of', 'the', 'classic', 'dogandrabbit', 'chase', 'problem', 'which', 'emphasizes', 'the', 'use', 'of', 'concepts', 'of', 'elementary', 'kinematics', 'and', 'therefore', 'can', 'be', 'used', 'in', 'introductory', 'mechanics', 'course', 'the', 'article', 'is', 'based', 'on', 'the', 'teaching', 'experience', 'of', 'introductory', 'mechanics', 'course', 'at', 'novosibirsk', 'state', 'university', 'for', 'first', 'year', 'physics', 'students', 'which', 'are', 'just', 'beginning', 'to', 'use', 'advanced', 'mathematical', 'methods', 'in', 'physics', 'problems', 'we', 'hope', 'it', 'will', 'be', 'also', 'useful', 'for', 'students', 'and', 'teachers', 'at', 'other', 'universities', 'too']] | [0.05236918005592576, 0.10817681072370672, -0.18025090417642964, 0.12037586964377225, -0.1893169241162335, -0.16726325974209097, 0.016101299038315874, 0.3344194625231733, -0.25022479896320077, -0.3703061405387593, 0.10307162208766563, -0.2545300671637694, -0.15927261084661729, 0.22364872104556457, -0.11671184136236949, 0.0002464891593085556, 0.12504915989049506, 0.050616465968920325, -0.06832185532988572, -0.3153233306664156, 0.31027543725638945, 0.13337442959181783, 0.2490596138849491, 0.06252562358589252, 0.08513888059093094, 0.01656762881931372, -0.032581456556416505, -0.017602168330241266, -0.1034881972066104, 0.14722380301455126, 0.43968247527983495, 0.20402019819040307, 0.39224749827394034, -0.44385398569993856, -0.10828431192558349, 0.015061746226487363, 0.09205637303771587, 0.1326547186713802, -0.043206143211403, -0.2682867801134906, 0.012564746174597886, -0.172866522697959, -0.1343569659241816, -0.014204611944988734, -0.0008898326990807928, -0.02662604879133585, -0.1525098587522601, 0.022499181849458937, 0.05412377564381331, 0.15496592123697445, -0.00839999329480456, -0.1790356112235203, 0.11467178960518185, 0.15733510886159977, 0.012946785325411617, -0.0040300542931640294, 0.13378299917548714, -0.13798733526647727, -0.15322373511564985, 0.42497468285444306, 0.03160831479855427, -0.13785958928396788, 0.2301098155993514, -0.12739326688744945, -0.1890919423355471, 0.05108501829729393, 0.24417491301485314, 0.11181439934071244, -0.18064683801835266, 0.08168104223242574, 0.026784551863717598, 0.15051894314677977, 0.034286642048888406, -0.04619562281182081, 0.2516849444974668, 0.18175215158815972, -0.0021104049704196615, 0.0702109138414593, 0.018661248489146735, -0.09719657453867357, -0.36828191323978143, -0.21799722040730823, -0.15268539202331408, 0.01711523782734464, 0.08042448683586483, -0.07675070431446884, 0.4091612690287392, 0.18099183559122428, 0.029286269541466382, 0.004869412755729948, 0.2454315872363201, 0.07087618738367427, -0.005809596353551236, 0.05089506756786893, 0.24066057605328176, 0.08220659425516226, 0.23113592564718935, -0.1035952143791336, 0.05606914765383231, 0.07523013483846515] |
711.3294 | Energy Conversion Using New Thermoelectric Generator | During recent years, microelectronics helped to develop complex and varied
technologies. It appears that many of these technologies can be applied
successfully to realize Seebeck micro generators: photolithography and
deposition methods allow to elaborate thin thermoelectric structures at the
micro-scale level. Our goal is to scavenge energy by developing a miniature
power source for operating electronic components. First Bi and Sb micro-devices
on silicon glass substrate have been manufactured with an area of 1cm2
including more than one hundred junctions. Each step of process fabrication has
been optimized: photolithography, deposition process, anneals conditions and
metallic connections. Different device structures have been realized with
different micro-line dimensions. Each devices performance will be reviewed and
discussed in function of their design structure.
| cs.OH | during recent years microelectronics helped to develop complex and varied technologies it appears that many of these technologies can be applied successfully to realize seebeck micro generators photolithography and deposition methods allow to elaborate thin thermoelectric structures at the microscale level our goal is to scavenge energy by developing a miniature power source for operating electronic components first bi and sb microdevices on silicon glass substrate have been manufactured with an area of 1cm2 including more than one hundred junctions each step of process fabrication has been optimized photolithography deposition process anneals conditions and metallic connections different device structures have been realized with different microline dimensions each devices performance will be reviewed and discussed in function of their design structure | [['during', 'recent', 'years', 'microelectronics', 'helped', 'to', 'develop', 'complex', 'and', 'varied', 'technologies', 'it', 'appears', 'that', 'many', 'of', 'these', 'technologies', 'can', 'be', 'applied', 'successfully', 'to', 'realize', 'seebeck', 'micro', 'generators', 'photolithography', 'and', 'deposition', 'methods', 'allow', 'to', 'elaborate', 'thin', 'thermoelectric', 'structures', 'at', 'the', 'microscale', 'level', 'our', 'goal', 'is', 'to', 'scavenge', 'energy', 'by', 'developing', 'a', 'miniature', 'power', 'source', 'for', 'operating', 'electronic', 'components', 'first', 'bi', 'and', 'sb', 'microdevices', 'on', 'silicon', 'glass', 'substrate', 'have', 'been', 'manufactured', 'with', 'an', 'area', 'of', '1cm2', 'including', 'more', 'than', 'one', 'hundred', 'junctions', 'each', 'step', 'of', 'process', 'fabrication', 'has', 'been', 'optimized', 'photolithography', 'deposition', 'process', 'anneals', 'conditions', 'and', 'metallic', 'connections', 'different', 'device', 'structures', 'have', 'been', 'realized', 'with', 'different', 'microline', 'dimensions', 'each', 'devices', 'performance', 'will', 'be', 'reviewed', 'and', 'discussed', 'in', 'function', 'of', 'their', 'design', 'structure']] | [-0.07722029229917098, 0.13924084518912422, -0.049920785683207215, -0.06050819470726007, -0.061034438161489867, -0.22602577892054493, -0.016316793746470163, 0.4895460911716024, -0.23835355784588805, -0.3346957696446528, 0.09970936768125588, -0.2711328056252872, -0.11136076065207211, 0.271192483852307, -0.0519366750542152, 0.1089013227512017, -0.005018251404787104, -0.10681171071870874, -0.0559862230962608, -0.24679578899619325, 0.22322385308798404, 0.10125988999692102, 0.3677075371534253, 0.06662231304599117, 0.09986434974804675, -0.06978454900090583, 0.06349843070914479, 0.0030087775298549484, -0.13238969223487704, 0.12071962696791161, 0.31598580071392157, -0.012873785704141483, 0.25465812854041964, -0.5464812911270808, -0.25490897133325535, 0.028433228425274137, 0.11618538576391681, 0.05457073191646487, -0.09739808382740496, -0.22253024023278462, 0.1076434624226143, -0.1843112270037333, -0.09623037132102279, -0.07603038219737451, 0.003174975685154398, 0.008210421178955585, -0.17560960966414615, -0.0647014467123275, -0.017839910643912542, 0.06268857823840032, 0.001379729223723795, -0.15442108859618506, -0.039032509315681335, 0.11271944241598249, -0.020552101012920806, -0.012873294412808415, 0.2630548471934162, -0.08224381753631557, -0.15058296928182244, 0.3300435464208325, 0.02267707915295129, -0.12544873023677308, 0.21215839349509527, -0.11237983790488215, -0.097482070288, 0.13964707989944145, 0.16967067936396538, 0.08160603074162888, -0.2139788780133434, 0.033481342692296794, 0.11119678538913529, 0.17487092643665772, 0.1297853530204217, 0.052272575205036746, 0.2346333865483757, 0.2895930886734277, 0.03185536397789595, 0.12938491985939132, -0.09969955700604866, -0.014607218722812832, -0.17109779984651444, -0.20038727607267598, -0.15070075258845464, 0.08051659045158885, -0.052750950395299395, -0.13056943383611117, 0.3841916732839309, 0.14819302862354863, 0.1395189996571086, -0.09006800278827237, 0.2825191942974925, 0.07815719567103467, 0.170326385567508, -0.009182214088893186, 0.23082022403832525, 0.1272045971728706, 0.16189507881851264, -0.13194593691344683, 0.0849070305674104, -0.02614328171281765] |
711.3295 | On Order, Disorder and Coherence | We provide a brief survey of quantum statistical characterisations of order,
disorder and coherence in systems of many degrees of freedom. Here, order and
coherence are described in terms of symmetry breakdown, while disorder is
described in terms of entropy and algorithmic complexity, whose interconnection
has been recently extended from the classical to the quantum domain. We see
that, in the present physical context, the concepts of order and disorder are
not mutually antithetical, but bear an interrelationship similar to that
between signals and noise.
| math-ph cond-mat.stat-mech math.MP quant-ph | we provide a brief survey of quantum statistical characterisations of order disorder and coherence in systems of many degrees of freedom here order and coherence are described in terms of symmetry breakdown while disorder is described in terms of entropy and algorithmic complexity whose interconnection has been recently extended from the classical to the quantum domain we see that in the present physical context the concepts of order and disorder are not mutually antithetical but bear an interrelationship similar to that between signals and noise | [['we', 'provide', 'a', 'brief', 'survey', 'of', 'quantum', 'statistical', 'characterisations', 'of', 'order', 'disorder', 'and', 'coherence', 'in', 'systems', 'of', 'many', 'degrees', 'of', 'freedom', 'here', 'order', 'and', 'coherence', 'are', 'described', 'in', 'terms', 'of', 'symmetry', 'breakdown', 'while', 'disorder', 'is', 'described', 'in', 'terms', 'of', 'entropy', 'and', 'algorithmic', 'complexity', 'whose', 'interconnection', 'has', 'been', 'recently', 'extended', 'from', 'the', 'classical', 'to', 'the', 'quantum', 'domain', 'we', 'see', 'that', 'in', 'the', 'present', 'physical', 'context', 'the', 'concepts', 'of', 'order', 'and', 'disorder', 'are', 'not', 'mutually', 'antithetical', 'but', 'bear', 'an', 'interrelationship', 'similar', 'to', 'that', 'between', 'signals', 'and', 'noise']] | [-0.1412197533529252, 0.14221209760580678, -0.08080313250641613, 0.05032563712037004, -0.023777307449456525, -0.09563943519640494, 0.013533240777092835, 0.35499018755029227, -0.24648227117517416, -0.3036926209817038, 0.10538087670883055, -0.29267868195824764, -0.1864742584526539, 0.14035672267131946, -0.0920703028465676, 0.04423391091472963, -0.03051173148457618, 0.04933891326825902, -0.06868068164433627, -0.258413156297277, 0.31362013920374654, 0.032184747943435524, 0.2552871585275759, 0.0720748158336124, 0.08942409557673861, -0.015809136141529855, -0.014163059927523137, 0.0746089842827881, -0.11665714287339463, 0.1288429328404805, 0.2669090372948524, 0.10290209135204992, 0.24127175360918046, -0.4272919803529101, -0.22530968732693615, 0.09772565245957059, 0.1469840489766177, 0.1305866413448444, -0.025024340719477657, -0.3015946353183073, 0.06170049178249696, -0.16167514495661153, -0.09656952011453755, -0.13467062516685793, 0.014674382218543221, 0.03169354881255833, -0.2017414169440813, 0.09666063571896623, 0.13927619670901228, 0.12913431836401715, -0.0037801612579428097, -0.07390049476833904, 0.024532016662552076, 0.14768336063031764, 0.03523101988248527, -0.015004603203166933, 0.07332903316915583, -0.14343266384128261, -0.17248864916755874, 0.3924753113923704, 0.006443678934181876, -0.174082170448759, 0.23150097499464584, -0.15460435343796716, -0.13537218067795037, 0.08936671399210086, 0.15509785105036022, 0.034473035046282935, -0.17421119209817226, 0.08509018811455463, 0.03351992644807872, 0.17721299041226946, 0.04304546011502252, 0.1883348002043717, 0.1862794535125003, 0.1373602452742703, 0.05795483970946139, 0.16637020100093008, -0.02699945170761031, -0.16136481433230287, -0.30987015619860303, -0.1568165559636648, -0.19279663291047602, 0.046569878720466105, -0.058791656895396845, -0.1438794211429708, 0.4179039882605567, 0.17779715134666357, 0.15894309754812103, 0.014049543914220789, 0.22034328247365706, 0.11041586983072407, 0.04841921503710396, 0.04002093752462636, 0.23996603738461786, 0.1842208548394196, 0.0660473483696799, -0.21090882230714403, 0.06271177457974238, 0.02875957606250749] |
711.3296 | Above Ic Micro-Power Generators for RF-Mems | This work presents recent advances in the development and the integration of
an electrochemical (chemicalelectrical energy conversion) micro power generator
used as a high voltage energy source for RF-MEMS powering. Autonomous MEMS
require similarly miniaturized power sources. Up to day, solid state thin film
batteries are realized with mechanical masks. This method doesn't allow
dimensions below a few mm^2 active area, and besides the whole process flow is
done under controlled atmosphere so as to ensure materials chemical stability
(mainly lithiated materials). Within this context, Microelectronics
micro-fabrication procedures (photolithography, Reactive Ion Etching...) are
used to reach both miniaturisation (100x100 $\mu$m^2 targeted unit cell active
area) and Above IC technological compatibility. All process steps developed
here are realized in clean room environment.
| cs.OH | this work presents recent advances in the development and the integration of an electrochemical chemicalelectrical energy conversion micro power generator used as a high voltage energy source for rfmems powering autonomous mems require similarly miniaturized power sources up to day solid state thin film batteries are realized with mechanical masks this method doesnt allow dimensions below a few mm2 active area and besides the whole process flow is done under controlled atmosphere so as to ensure materials chemical stability mainly lithiated materials within this context microelectronics microfabrication procedures photolithography reactive ion etching are used to reach both miniaturisation 100x100 mum2 targeted unit cell active area and above ic technological compatibility all process steps developed here are realized in clean room environment | [['this', 'work', 'presents', 'recent', 'advances', 'in', 'the', 'development', 'and', 'the', 'integration', 'of', 'an', 'electrochemical', 'chemicalelectrical', 'energy', 'conversion', 'micro', 'power', 'generator', 'used', 'as', 'a', 'high', 'voltage', 'energy', 'source', 'for', 'rfmems', 'powering', 'autonomous', 'mems', 'require', 'similarly', 'miniaturized', 'power', 'sources', 'up', 'to', 'day', 'solid', 'state', 'thin', 'film', 'batteries', 'are', 'realized', 'with', 'mechanical', 'masks', 'this', 'method', 'doesnt', 'allow', 'dimensions', 'below', 'a', 'few', 'mm2', 'active', 'area', 'and', 'besides', 'the', 'whole', 'process', 'flow', 'is', 'done', 'under', 'controlled', 'atmosphere', 'so', 'as', 'to', 'ensure', 'materials', 'chemical', 'stability', 'mainly', 'lithiated', 'materials', 'within', 'this', 'context', 'microelectronics', 'microfabrication', 'procedures', 'photolithography', 'reactive', 'ion', 'etching', 'are', 'used', 'to', 'reach', 'both', 'miniaturisation', '100x100', 'mum2', 'targeted', 'unit', 'cell', 'active', 'area', 'and', 'above', 'ic', 'technological', 'compatibility', 'all', 'process', 'steps', 'developed', 'here', 'are', 'realized', 'in', 'clean', 'room', 'environment']] | [-0.08707252148694049, 0.14690449234634192, 0.04639292361801684, -0.06818445940913685, -0.030074502644129097, -0.202620183226342, 0.06510126677264148, 0.46443112610528864, -0.2512861380702816, -0.3411560372294237, 0.11678950629623917, -0.2527787268316994, -0.051262828512699345, 0.27002815060938395, -0.0993550322969289, 0.12346619351786406, 0.022751194215379654, -0.0970169577068494, -0.00409176858374849, -0.1858935331266063, 0.17492610813739398, 0.13607361106357227, 0.3645901740489838, 0.05874386415574311, 0.12208978297421709, -0.06538885841922214, 0.0415990084708028, -0.016612020670436323, -0.12122373835494121, 0.11497971534554381, 0.324982841759144, 0.004525111305216948, 0.26095235251123083, -0.5220905153236042, -0.27391331634717064, 0.0515398014918901, 0.13287097053059066, 0.05225738184332537, -0.12570365550927817, -0.17975546002853662, 0.0779717144711564, -0.18623684531388182, -0.1337940084282309, -0.0567181735629371, -0.019037294085137546, 0.018846884379551437, -0.20589199546714856, -0.00924637212883681, 0.03151211055616538, 0.0968889957931727, -0.058768108217433716, -0.11709414284365872, -0.005755749604819963, 0.11127240466909522, -0.05351772030747573, 0.004833267714517812, 0.321569105113546, -0.10272520485838564, -0.08197944539764042, 0.3325163847922037, 0.017649571417132394, -0.12760297088243533, 0.18416708655228528, -0.09150277551088948, -0.09077059931975479, 0.15901191968005152, 0.18599212996875092, 0.0989281191083137, -0.22825543295087602, 0.04646186371925675, 0.11214043841852496, 0.2002595914175193, 0.10782405906938948, 0.03281930962305826, 0.23223207880121965, 0.28697546547433983, 0.07201540015327433, 0.11022897408705225, -0.09491416558545704, -0.03070770325915267, -0.2588037886656821, -0.2000283440031732, -0.14536714966234285, 0.08369622801352913, -0.03135908207974959, -0.14281047460729798, 0.33977143798644344, 0.1254612131199489, 0.1024107444488133, -0.04779526972755169, 0.32805194951652084, 0.05379476954112761, 0.10763175046498266, 0.020060769864358008, 0.2585952788455567, 0.12440067632705905, 0.23230611954168126, -0.1574056281048494, 0.061022788947836186, -0.012836031202459708] |
711.3297 | Packaging of RF Mems Switching Functions on Alumina Substrate | Recently the strong demands in wireless communication requires expanding
development for the application of RF MEMS (Radio Frequency micro electro
mechanical systems) sensing devices such as micro-switches, tunable capacitors
because it offers lower power consumption, lower losses, higher linearity and
higher Q factors compared with conventional communications components. To
accelerate commercialisation of RF MEMS products, development for packaging
technologies is one of the most critical issues should be solved beforehand.
| cs.OH | recently the strong demands in wireless communication requires expanding development for the application of rf mems radio frequency micro electro mechanical systems sensing devices such as microswitches tunable capacitors because it offers lower power consumption lower losses higher linearity and higher q factors compared with conventional communications components to accelerate commercialisation of rf mems products development for packaging technologies is one of the most critical issues should be solved beforehand | [['recently', 'the', 'strong', 'demands', 'in', 'wireless', 'communication', 'requires', 'expanding', 'development', 'for', 'the', 'application', 'of', 'rf', 'mems', 'radio', 'frequency', 'micro', 'electro', 'mechanical', 'systems', 'sensing', 'devices', 'such', 'as', 'microswitches', 'tunable', 'capacitors', 'because', 'it', 'offers', 'lower', 'power', 'consumption', 'lower', 'losses', 'higher', 'linearity', 'and', 'higher', 'q', 'factors', 'compared', 'with', 'conventional', 'communications', 'components', 'to', 'accelerate', 'commercialisation', 'of', 'rf', 'mems', 'products', 'development', 'for', 'packaging', 'technologies', 'is', 'one', 'of', 'the', 'most', 'critical', 'issues', 'should', 'be', 'solved', 'beforehand']] | [-0.2006625556859417, 0.14291528866126918, 0.04347692641929008, -0.050123923679179366, -0.10849482715939698, -0.2529002229777583, 0.010789422844739063, 0.3905191832370516, -0.22457767849740828, -0.3202002147293609, 0.1321795630602814, -0.238832401678614, -0.12035148544911889, 0.3153408023164324, -0.11417722920009839, 0.11399749989884542, 0.009197156680612892, -0.03216627612035128, -0.018311175765753116, -0.17608327360189371, 0.18561397555648632, 0.14799337022924336, 0.42210928976967715, 0.06139774088734302, 0.0751568093639461, -0.03587804814341707, 0.03130720923587248, -0.05242374858589492, -0.03561277408152819, 0.16932791219754278, 0.3397969421863124, 0.11510552039396936, 0.33856023264967877, -0.5012437675040269, -0.290723399070186, 0.09094950745719066, 0.14685402751859764, 0.011572188633009859, -0.06320261748750573, -0.1809763610632955, 0.10526971473776991, -0.2622365504671968, -0.12665849168210433, -0.04511415550782197, 0.007297262588205437, 0.09077185394404375, -0.24324809946794657, -0.0036740680967552075, -0.0011051487366574397, 0.064026628728902, -0.04587657946652051, -0.1402811922834835, 0.05362055295457443, 0.13824408936003843, -0.024647500607239057, -0.04096817190799376, 0.24714054348136205, -0.18508284476221257, -0.14217875518269188, 0.397881630052259, 0.021154655413567158, -0.1535088734674281, 0.19800578910466013, -0.08609100672807815, -0.09803101424451756, 0.12686677007814465, 0.20694394587316428, -0.011880621786458769, -0.16232112538494656, 0.036583608137004994, 0.18673243597689745, 0.16966761821422024, 0.14075829111633525, 0.14880189110619435, 0.17771306425751443, 0.2264812615956517, 0.14088509464878976, 0.1349955459607873, -0.014637025358303841, -0.004999709356090297, -0.15885882372495488, -0.15479316999730858, -0.19287639024222028, 0.0737089209218064, -0.09187334301468977, -0.12483444723530092, 0.3210218820140522, 0.12060549826212767, 0.040993291925153004, -0.007822917129817432, 0.4434110594076523, 0.14410724955023793, 0.17238942805029775, 0.07439467658464244, 0.2730912992163845, 0.14089236570441205, 0.205673236588853, -0.17023109618331428, 0.03577588985174678, -0.04410523833518011] |
711.3298 | Recent Developments in Mems-Based Micro Fuel Cells | Micro fuel cells ($\mu$-FC) represent promising power sources for portable
applications. Today, one of the technological ways to make $\mu$-FC is to have
recourse to standard microfabrication techniques used in the fabrication of
micro electromechanical systems (MEMS). This paper shows an overview on the
applications of MEMS techniques on miniature FC by presenting several solutions
developed throughout the world. It also describes the latest developments of a
new porous silicon-based miniature fuel cell. Using a silane grafted on an
inorganic porous media as the proton-exchange membrane instead of a common
ionomer such as Nafion, the fuel cell achieved a maximum power density of 58 mW
cm-2 at room temperature with hydrogen as fuel.
| cs.OH | micro fuel cells mufc represent promising power sources for portable applications today one of the technological ways to make mufc is to have recourse to standard microfabrication techniques used in the fabrication of micro electromechanical systems mems this paper shows an overview on the applications of mems techniques on miniature fc by presenting several solutions developed throughout the world it also describes the latest developments of a new porous siliconbased miniature fuel cell using a silane grafted on an inorganic porous media as the protonexchange membrane instead of a common ionomer such as nafion the fuel cell achieved a maximum power density of 58 mw cm2 at room temperature with hydrogen as fuel | [['micro', 'fuel', 'cells', 'mufc', 'represent', 'promising', 'power', 'sources', 'for', 'portable', 'applications', 'today', 'one', 'of', 'the', 'technological', 'ways', 'to', 'make', 'mufc', 'is', 'to', 'have', 'recourse', 'to', 'standard', 'microfabrication', 'techniques', 'used', 'in', 'the', 'fabrication', 'of', 'micro', 'electromechanical', 'systems', 'mems', 'this', 'paper', 'shows', 'an', 'overview', 'on', 'the', 'applications', 'of', 'mems', 'techniques', 'on', 'miniature', 'fc', 'by', 'presenting', 'several', 'solutions', 'developed', 'throughout', 'the', 'world', 'it', 'also', 'describes', 'the', 'latest', 'developments', 'of', 'a', 'new', 'porous', 'siliconbased', 'miniature', 'fuel', 'cell', 'using', 'a', 'silane', 'grafted', 'on', 'an', 'inorganic', 'porous', 'media', 'as', 'the', 'protonexchange', 'membrane', 'instead', 'of', 'a', 'common', 'ionomer', 'such', 'as', 'nafion', 'the', 'fuel', 'cell', 'achieved', 'a', 'maximum', 'power', 'density', 'of', '58', 'mw', 'cm2', 'at', 'room', 'temperature', 'with', 'hydrogen', 'as', 'fuel']] | [-0.05270956682360119, 0.09717764401087865, 0.0032735136337578297, -0.07730007797808948, -0.03127441205386374, -0.15368792439836101, 0.036335070715034126, 0.4024796839971263, -0.23427685902260983, -0.2957683274824474, 0.12820765911706364, -0.2858339398008612, -0.11599590386440223, 0.30018862032306354, -0.11968374675976716, 0.07863555295678142, -0.010362535239117869, -0.03291057352278683, 0.0022871018878209428, -0.1724641856712264, 0.16792297994231317, 0.06943360454327352, 0.3339080053071181, 0.07118481624586222, 0.1421108801203134, -0.0796532303782868, 0.027712726014297088, -0.004198972303588111, -0.14213169920352614, 0.17348979723111196, 0.2951630478859082, 0.06304880285736274, 0.2939702719743657, -0.5475719146396931, -0.2706409745948255, 0.04052572028170264, 0.09510521654790553, 0.07151844210268275, -0.1449913426442911, -0.19130161433136678, 0.06576531680210636, -0.21708721466580624, -0.18167748031090275, -0.04307539791691008, 0.013692434667399875, 0.08144795496503378, -0.17828979702699962, 0.001964756172005641, -0.020588440105302242, 0.04565664218620162, -0.06647956408014907, -0.1344027928777274, 0.021440370029325154, 0.08212911138764105, -0.03202675268901428, -0.015570068673171976, 0.30628286268528515, -0.11804735459395693, -0.09720450087643422, 0.40791313682456276, -0.021617951210344898, -0.11611582076560857, 0.20749710857666828, -0.05225579440174205, -0.11719343887625246, 0.11471177493893281, 0.2000302978925541, 0.07386568501205729, -0.22340172830432117, 0.012517626187554351, 0.028707341747232586, 0.20092615904076747, 0.11640120169718389, 0.0211225438376402, 0.24026030766869988, 0.3274576466169779, 0.05525087062814818, 0.12133197091951933, -0.0684008089854877, -0.014235328977323464, -0.2139875604896932, -0.2229058092653013, -0.14346416959505495, 0.08756931393348553, -0.09447431938118629, -0.18541508891592473, 0.35165121288852647, 0.11640409758599761, 0.12542749078826862, -0.03357483639574803, 0.36925918926896006, 0.0047652238008759175, 0.13015364921601438, -0.016753743515928853, 0.23025873760055113, 0.1543837151183906, 0.21248370025994945, -0.17929538215409863, 0.04475768991989327, -0.01976368792967552] |
711.3299 | Influence of Micro-Cantilever Geometry and Gap on Pull-in Voltage | In this paper, we study the behaviour of a microcantilever beam under
electrostatic actuation using finite difference method. This problem has a lot
of applications in MEMS based devices like accelerometers, switches and others.
In this paper, we formulated the problem of a cantilever beam with proof mass
at its end and carried out the finite difference solution. we studied the
effects of length, width, and the gap size on the pull-in voltage using data
that are available in the literature. Also, the stability limit is compared
with the single degree of freedom commonly used in the earlier literature as an
approximation to calculate the pull-in voltage.
| cs.OH | in this paper we study the behaviour of a microcantilever beam under electrostatic actuation using finite difference method this problem has a lot of applications in mems based devices like accelerometers switches and others in this paper we formulated the problem of a cantilever beam with proof mass at its end and carried out the finite difference solution we studied the effects of length width and the gap size on the pullin voltage using data that are available in the literature also the stability limit is compared with the single degree of freedom commonly used in the earlier literature as an approximation to calculate the pullin voltage | [['in', 'this', 'paper', 'we', 'study', 'the', 'behaviour', 'of', 'a', 'microcantilever', 'beam', 'under', 'electrostatic', 'actuation', 'using', 'finite', 'difference', 'method', 'this', 'problem', 'has', 'a', 'lot', 'of', 'applications', 'in', 'mems', 'based', 'devices', 'like', 'accelerometers', 'switches', 'and', 'others', 'in', 'this', 'paper', 'we', 'formulated', 'the', 'problem', 'of', 'a', 'cantilever', 'beam', 'with', 'proof', 'mass', 'at', 'its', 'end', 'and', 'carried', 'out', 'the', 'finite', 'difference', 'solution', 'we', 'studied', 'the', 'effects', 'of', 'length', 'width', 'and', 'the', 'gap', 'size', 'on', 'the', 'pullin', 'voltage', 'using', 'data', 'that', 'are', 'available', 'in', 'the', 'literature', 'also', 'the', 'stability', 'limit', 'is', 'compared', 'with', 'the', 'single', 'degree', 'of', 'freedom', 'commonly', 'used', 'in', 'the', 'earlier', 'literature', 'as', 'an', 'approximation', 'to', 'calculate', 'the', 'pullin', 'voltage']] | [-0.14109511441925418, 0.0655882518944411, -0.08715712900978521, -0.014226403429007557, -0.040698808339363506, -0.10767442352686808, 0.061975218203336555, 0.3802065334726717, -0.2586161764425652, -0.29719282799861696, 0.1134405945216645, -0.26112024064793765, -0.1259641847355622, 0.2322549592338015, -0.08282905276081412, 0.09577203098908676, 0.03935342090134727, 0.01894615133179822, -0.054312140848400574, -0.19455071860732875, 0.2795570609964883, 0.06560294637369497, 0.31579465320917005, 0.07873293732795603, 0.11420347841095319, 0.0016319249565147351, 0.025960167634918867, 0.06434517880144451, -0.17040753271899928, 0.0817612632042859, 0.229468749187643, 0.015883023489405897, 0.29992373446960036, -0.4233254173544244, -0.1759155004798809, 0.08490231567906721, 0.1355000570303299, 0.1219553208526955, -0.06934040146945132, -0.21752268830792995, 0.08536598722180613, -0.17964808661482518, -0.14330853553797296, 0.012055300210959444, 0.008182594483004553, 0.05161111006104152, -0.21997578734984605, 0.04907750860308123, 0.027387368183791914, 0.09930619599175787, -0.040933607810500046, -0.12579862763844082, 0.04230279073110459, 0.10511258286783019, 0.06461105886281024, -0.0003427336249221987, 0.14643435478841485, -0.09297431644409129, -0.09396481665425768, 0.3598834607471651, -0.054561132295318296, -0.21910238201581986, 0.14340041446603974, -0.10908654805655792, -0.08006564513388499, 0.08020161887822307, 0.17852226358394477, 0.13440247729859123, -0.16575805897276116, 0.0848568650381422, -0.007975154495406374, 0.18526106500110337, 0.11712768240875313, 0.013895443527497978, 0.14872535549661267, 0.21178866149509482, 0.07496641467490764, 0.18089975515014936, -0.10253013206415192, -0.0639914511485356, -0.2938565956080489, -0.10944485379530935, -0.17525054552705488, 0.00914306679270535, -0.029413998270190807, -0.16276275141112437, 0.41368049856658295, 0.16912594651607535, 0.16255391302092054, 0.023536481247740475, 0.34082949112787425, 0.15036552531588127, 0.05851256776444405, 0.025912466724446723, 0.2724753906515157, 0.13756774336634917, 0.1651584486146327, -0.26993786881756143, 0.044193527056339464, 0.03251626513567622] |
711.33 | Design and Development of Novel Electroplating Spring Frame Mems
Structure Specimens for the Microtensile Testing of Thin Film Materials | Microelectromechanical systems (MEMS) technologies are developing rapidly
with increasing study of the design, fabrication and commercialization of
microscale systems and devices. Accurate mechanical properties are important
for successful design and development of MEMS. We have demonstrated here a
novel electroplating spring frame MEMS Structure Specimen integrates pin-pin
align holes, misalignment compensate spring structure frame, load sensor beam
and freestanding thin film. The specimen can be fit into a specially designed
microtensile apparatus which is capable of carrying out a series of tests on
sub-micro scale freestanding thin films.
| cs.OH | microelectromechanical systems mems technologies are developing rapidly with increasing study of the design fabrication and commercialization of microscale systems and devices accurate mechanical properties are important for successful design and development of mems we have demonstrated here a novel electroplating spring frame mems structure specimen integrates pinpin align holes misalignment compensate spring structure frame load sensor beam and freestanding thin film the specimen can be fit into a specially designed microtensile apparatus which is capable of carrying out a series of tests on submicro scale freestanding thin films | [['microelectromechanical', 'systems', 'mems', 'technologies', 'are', 'developing', 'rapidly', 'with', 'increasing', 'study', 'of', 'the', 'design', 'fabrication', 'and', 'commercialization', 'of', 'microscale', 'systems', 'and', 'devices', 'accurate', 'mechanical', 'properties', 'are', 'important', 'for', 'successful', 'design', 'and', 'development', 'of', 'mems', 'we', 'have', 'demonstrated', 'here', 'a', 'novel', 'electroplating', 'spring', 'frame', 'mems', 'structure', 'specimen', 'integrates', 'pinpin', 'align', 'holes', 'misalignment', 'compensate', 'spring', 'structure', 'frame', 'load', 'sensor', 'beam', 'and', 'freestanding', 'thin', 'film', 'the', 'specimen', 'can', 'be', 'fit', 'into', 'a', 'specially', 'designed', 'microtensile', 'apparatus', 'which', 'is', 'capable', 'of', 'carrying', 'out', 'a', 'series', 'of', 'tests', 'on', 'submicro', 'scale', 'freestanding', 'thin', 'films']] | [-0.1532798625385939, 0.15032515464620452, -0.03349125787843315, -0.09764550647841216, -0.0880531900858676, -0.24572316852175968, -0.07836657213787972, 0.47125198924914, -0.221158519979905, -0.31142619775015523, 0.12257522970586168, -0.24334742054766553, -0.1295625378102572, 0.26672072014348075, -0.06531406150051308, 0.1633102706824006, 0.08221085276454687, -0.1529089574045925, -0.02362786098489199, -0.12943486950991262, 0.2245259971664795, 0.11627492871114307, 0.38612676810325036, -0.006709986747327176, 0.14645930807720023, -0.02084134384164248, 0.07370548603251915, 0.02336054301651364, -0.15622366362103177, 0.13628827226454054, 0.2728364780592859, -0.014694414085666225, 0.2977846848119622, -0.5217167114711959, -0.2130801210772585, -0.028256782605736094, 0.09920949912206693, 0.08880335210415069, -0.11092107811947988, -0.24198499417186461, 0.058886943030467424, -0.15362965890248728, -0.12362016746969444, -0.12101108612312766, -0.00939483871810477, 0.041340356575595004, -0.21460893084771338, -0.042244960847628216, 0.024074156578122216, 0.10187859613109719, -0.08410680977398112, -0.10065360426034947, 0.010840864005413923, 0.08481552264658437, -0.022883102256772956, -0.026001184779240495, 0.3096720026118088, -0.07559512682597745, -0.04914380065482957, 0.3765723743814636, 0.0331778715659642, -0.1524480657535605, 0.1250633581525604, -0.10678397890561345, -0.038968889235878705, 0.10693185119783845, 0.2527645235161551, 0.06477651573632928, -0.1964825929409761, 0.007828314976491542, 0.0820997743179429, 0.23791350060227243, 0.12465363922423091, 0.018753235231005503, 0.29532027509148145, 0.3252978584813801, 0.01798207851838511, 0.1436120327839903, -0.08643157753976993, -0.0028257917570458217, -0.20027733501046896, -0.21363451374302464, -0.1646399759814482, 0.05862730887020007, -0.03975504286923255, -0.18683068340099204, 0.3625828865703873, 0.10572031507035717, 0.10408273354617202, -0.019852120331382717, 0.3170896905432776, -0.00980328990210017, 0.15389803105922925, -0.040047435510628435, 0.2958721604187634, 0.13308151896027, 0.17527712830798753, -0.18884984516030687, 0.07217263495443728, -0.034940748306160625] |
711.3301 | Characterisation of the Etching Quality in Micro-Electro-Mechanical
Systems by Thermal Transient Methodology | Our paper presents a non-destructive thermal transient measurement method
that is able to reveal differences even in the micron size range of MEMS
structures. Devices of the same design can have differences in their
sacrificial layers as consequence of the differences in their manufacturing
processes e.g. different etching times. We have made simulations examining how
the etching quality reflects in the thermal behaviour of devices. These
simulations predicted change in the thermal behaviour of MEMS structures having
differences in their sacrificial layers. The theory was tested with
measurements of similar MEMS devices prepared with different etching times. In
the measurements we used the T3Ster thermal transient tester equipment. The
results show that deviations in the devices, as consequence of the different
etching times, result in different temperature elevations and manifest also as
shift in time in the relevant temperature transient curves.
| cs.OH | our paper presents a nondestructive thermal transient measurement method that is able to reveal differences even in the micron size range of mems structures devices of the same design can have differences in their sacrificial layers as consequence of the differences in their manufacturing processes eg different etching times we have made simulations examining how the etching quality reflects in the thermal behaviour of devices these simulations predicted change in the thermal behaviour of mems structures having differences in their sacrificial layers the theory was tested with measurements of similar mems devices prepared with different etching times in the measurements we used the t3ster thermal transient tester equipment the results show that deviations in the devices as consequence of the different etching times result in different temperature elevations and manifest also as shift in time in the relevant temperature transient curves | [['our', 'paper', 'presents', 'a', 'nondestructive', 'thermal', 'transient', 'measurement', 'method', 'that', 'is', 'able', 'to', 'reveal', 'differences', 'even', 'in', 'the', 'micron', 'size', 'range', 'of', 'mems', 'structures', 'devices', 'of', 'the', 'same', 'design', 'can', 'have', 'differences', 'in', 'their', 'sacrificial', 'layers', 'as', 'consequence', 'of', 'the', 'differences', 'in', 'their', 'manufacturing', 'processes', 'eg', 'different', 'etching', 'times', 'we', 'have', 'made', 'simulations', 'examining', 'how', 'the', 'etching', 'quality', 'reflects', 'in', 'the', 'thermal', 'behaviour', 'of', 'devices', 'these', 'simulations', 'predicted', 'change', 'in', 'the', 'thermal', 'behaviour', 'of', 'mems', 'structures', 'having', 'differences', 'in', 'their', 'sacrificial', 'layers', 'the', 'theory', 'was', 'tested', 'with', 'measurements', 'of', 'similar', 'mems', 'devices', 'prepared', 'with', 'different', 'etching', 'times', 'in', 'the', 'measurements', 'we', 'used', 'the', 't3ster', 'thermal', 'transient', 'tester', 'equipment', 'the', 'results', 'show', 'that', 'deviations', 'in', 'the', 'devices', 'as', 'consequence', 'of', 'the', 'different', 'etching', 'times', 'result', 'in', 'different', 'temperature', 'elevations', 'and', 'manifest', 'also', 'as', 'shift', 'in', 'time', 'in', 'the', 'relevant', 'temperature', 'transient', 'curves']] | [-0.1096661781991965, 0.1573635094832363, -0.09543386194189744, -0.025472426188311408, 0.022516897400575026, -0.113099543507477, 0.01848422562636967, 0.43942529331626634, -0.2516332263393061, -0.3490997779898212, 0.09925764098713574, -0.29107616455294194, -0.13088793753080868, 0.22719437485959912, -0.06603096548933536, 0.056160822859965265, 0.037751804537505707, -0.08087375104078091, -0.07656256713338995, -0.2097987401874499, 0.2371133214544638, 0.07800268598033913, 0.317122897173145, 0.053444285946898165, 0.04621283982414752, -0.04030980894541634, -0.0002834654995240271, 0.03180570807973189, -0.13577968936265927, 0.04054463253622609, 0.2706048288914774, 0.014409031579270959, 0.21066172567329236, -0.5115954638724881, -0.22585686853022446, 0.046579042958494805, 0.10764212944808865, 0.08663835701798754, -0.07523686970650617, -0.2203394310232917, 0.056469561405746, -0.13602412172393608, -0.12304569967714737, -0.03457308753526637, 0.0014889706159010529, 0.03817217321733811, -0.19994932878928792, 0.06912304055024704, 0.031482543676559414, 0.07449762336577155, -0.0643756586264187, -0.12091180879755743, -0.03258589479706383, 0.1568919531685034, 0.02512772544370299, -0.06295719751422958, 0.24532509843951888, -0.12160815524735621, -0.1226636748877354, 0.36922301051339934, -0.07138371080758849, -0.12050920916704594, 0.22359528705876852, -0.15938038464768656, -0.09373533375494714, 0.10360517608766844, 0.18186293105411874, 0.10330148207389617, -0.1575270354082542, -0.004327654549602552, 0.04566924535403294, 0.1664832338191835, 0.13176373130409047, 0.07265493299013802, 0.1797184573278563, 0.21336699113848487, 0.0043644755845889446, 0.14934480813847456, -0.10102134244516492, -0.006544717412076092, -0.24354582303785718, -0.16945969726823804, -0.15840032398700715, 0.060481081095557394, -0.11519555938752352, -0.1697483053563961, 0.3933796936080658, 0.19982931403376694, 0.18692444268880146, -0.009210238459386996, 0.2956662589451298, 0.07575183279280151, 0.11626782339631712, 0.0007598176299195205, 0.2698596474648054, 0.10610226679792893, 0.16729651617684535, -0.22187880814141994, 0.14155179970299026, -0.055971628903145235] |
711.3302 | The Effects of Additives on the Physical Properties of Electroformed
Nickel and on the Stretch of Photoelectroformed Nickel Components | The process of nickel electroforming is becoming increasingly important in
the manufacture of MST products, as it has the potential to replicate complex
geometries with extremely high fidelity. Electroforming of nickel uses
multi-component electrolyte formulations in order to maximise desirable product
properties. In addition to nickel sulphamate (the major electrolyte component),
formulation additives can also comprise nickel chloride (to increase nickel
anode dissolution), sulphamic acid (to control pH), boric acid (to act as a pH
buffer), hardening/levelling agents (to increase deposit hardness and lustre)
and wetting agents (to aid surface wetting and thus prevent gas bubbles and
void formation). This paper investigates the effects of some of these variables
on internal stress and stretch as a function of applied current density.
| cs.OH | the process of nickel electroforming is becoming increasingly important in the manufacture of mst products as it has the potential to replicate complex geometries with extremely high fidelity electroforming of nickel uses multicomponent electrolyte formulations in order to maximise desirable product properties in addition to nickel sulphamate the major electrolyte component formulation additives can also comprise nickel chloride to increase nickel anode dissolution sulphamic acid to control ph boric acid to act as a ph buffer hardeninglevelling agents to increase deposit hardness and lustre and wetting agents to aid surface wetting and thus prevent gas bubbles and void formation this paper investigates the effects of some of these variables on internal stress and stretch as a function of applied current density | [['the', 'process', 'of', 'nickel', 'electroforming', 'is', 'becoming', 'increasingly', 'important', 'in', 'the', 'manufacture', 'of', 'mst', 'products', 'as', 'it', 'has', 'the', 'potential', 'to', 'replicate', 'complex', 'geometries', 'with', 'extremely', 'high', 'fidelity', 'electroforming', 'of', 'nickel', 'uses', 'multicomponent', 'electrolyte', 'formulations', 'in', 'order', 'to', 'maximise', 'desirable', 'product', 'properties', 'in', 'addition', 'to', 'nickel', 'sulphamate', 'the', 'major', 'electrolyte', 'component', 'formulation', 'additives', 'can', 'also', 'comprise', 'nickel', 'chloride', 'to', 'increase', 'nickel', 'anode', 'dissolution', 'sulphamic', 'acid', 'to', 'control', 'ph', 'boric', 'acid', 'to', 'act', 'as', 'a', 'ph', 'buffer', 'hardeninglevelling', 'agents', 'to', 'increase', 'deposit', 'hardness', 'and', 'lustre', 'and', 'wetting', 'agents', 'to', 'aid', 'surface', 'wetting', 'and', 'thus', 'prevent', 'gas', 'bubbles', 'and', 'void', 'formation', 'this', 'paper', 'investigates', 'the', 'effects', 'of', 'some', 'of', 'these', 'variables', 'on', 'internal', 'stress', 'and', 'stretch', 'as', 'a', 'function', 'of', 'applied', 'current', 'density']] | [-0.05393221764874613, 0.11028112058125247, -0.011540895690983636, 0.00018230610844588907, -0.039006641308256124, -0.1500110081357534, 0.07299135347642793, 0.43063171315243687, -0.22863658819884314, -0.35132041582995555, 0.09436607487219528, -0.2973343723698251, -0.10451494334107739, 0.11353354926331569, -0.07996952663159977, 0.05203010396779341, 0.009731955589505575, -0.0793689662606408, -0.02854382350914559, -0.2566371672506586, 0.21652502680623556, 0.10389507885122577, 0.28402342951967047, 0.11901629268649523, 0.08953520540252596, -0.043981480243481634, 0.05617834246022848, 0.012221098393823368, -0.13896151785580915, 0.10049735556624956, 0.28540660011566293, 0.017072680832470877, 0.2154432284266893, -0.5136497476753794, -0.21605671226378467, 0.08158348573537512, 0.1339782272560238, 0.10230755456328644, -0.06415856702122995, -0.18103911374869236, 0.059516306240427294, -0.20015182075982565, -0.15058728817345227, -0.048436320773562636, 0.015342256894840275, 0.08969771164721983, -0.24453636760807643, 0.056910257147954606, 0.020360365027060606, 0.022840074563430526, -0.10121467302285009, -0.15186688816174865, -0.11290444064810398, 0.10025779181949289, 0.0880685206954032, 0.014279631993504462, 0.3084760614595834, -0.12155830305487991, 0.0004455192780153731, 0.3703560948498168, -0.03621522831766061, -0.1361648078933378, 0.23740785973446477, -0.06367149909610971, -0.08583250035673885, 0.18783288024034414, 0.1820274479115003, 0.07621044147822817, -0.16826676096277848, -0.01660431730136733, 0.05111590204898552, 0.20709076178875768, 0.1266784476218903, 0.003455015751769987, 0.1988918390835367, 0.22159770737260076, 0.06559636119863618, 0.1826331979137356, -0.03950648820146097, -0.04359181382953805, -0.16924927018235547, -0.2719547695014626, -0.11378892776714164, 0.08140264339034714, -0.08216319143536828, -0.2586516755380494, 0.3000427044265099, 0.09924763302571314, 0.12425123687001868, -0.03633538000601328, 0.2514277643756448, -0.0017463388133565185, 0.07476571752389861, -0.019769669470961315, 0.1859761847203333, 0.18042472081645627, 0.16426605011052373, -0.2553197845966571, 0.18634843860231973, 0.029852965379023325] |
711.3303 | Expectations for dihadron correlation measurements at the LHC | The suppression of high transverse momentum (P_T) inclusive hadron spectra in
heavy-ion collisions as compared to the scaled expectation of high P_T hadron
production in p-p collisions is the most direct manifestation of the
interaction of hard partons with the soft bulk medium produced in heavy-ion
collisions which is absent in p-p collisions. Yet the measured nuclear
suppression factor R_AA is a very averaged quantity and hence only a limited
amount of information about the medium evolution and the nature of the
interaction with the medium can be deduced from R_AA. Measurements of hard
back-to-back hadron correlations in 200 AGeV Au-Au collisions at RHIC have
opened a new window to study the energy loss of partons in a medium in a more
differential way and for a different distribution of in-medium pathlengths than
in the case of R_AA. In this work, we present an extrapolation of our results
for back-to-back yields at RHIC energies to 5.5 TeV Pb-Pb collisions at the
CERN LHC. We also discuss differences and similarities between the measurement
at RHIC.
| hep-ph | the suppression of high transverse momentum p_t inclusive hadron spectra in heavyion collisions as compared to the scaled expectation of high p_t hadron production in pp collisions is the most direct manifestation of the interaction of hard partons with the soft bulk medium produced in heavyion collisions which is absent in pp collisions yet the measured nuclear suppression factor r_aa is a very averaged quantity and hence only a limited amount of information about the medium evolution and the nature of the interaction with the medium can be deduced from r_aa measurements of hard backtoback hadron correlations in 200 agev auau collisions at rhic have opened a new window to study the energy loss of partons in a medium in a more differential way and for a different distribution of inmedium pathlengths than in the case of r_aa in this work we present an extrapolation of our results for backtoback yields at rhic energies to 55 tev pbpb collisions at the cern lhc we also discuss differences and similarities between the measurement at rhic | [['the', 'suppression', 'of', 'high', 'transverse', 'momentum', 'p_t', 'inclusive', 'hadron', 'spectra', 'in', 'heavyion', 'collisions', 'as', 'compared', 'to', 'the', 'scaled', 'expectation', 'of', 'high', 'p_t', 'hadron', 'production', 'in', 'pp', 'collisions', 'is', 'the', 'most', 'direct', 'manifestation', 'of', 'the', 'interaction', 'of', 'hard', 'partons', 'with', 'the', 'soft', 'bulk', 'medium', 'produced', 'in', 'heavyion', 'collisions', 'which', 'is', 'absent', 'in', 'pp', 'collisions', 'yet', 'the', 'measured', 'nuclear', 'suppression', 'factor', 'r_aa', 'is', 'a', 'very', 'averaged', 'quantity', 'and', 'hence', 'only', 'a', 'limited', 'amount', 'of', 'information', 'about', 'the', 'medium', 'evolution', 'and', 'the', 'nature', 'of', 'the', 'interaction', 'with', 'the', 'medium', 'can', 'be', 'deduced', 'from', 'r_aa', 'measurements', 'of', 'hard', 'backtoback', 'hadron', 'correlations', 'in', '200', 'agev', 'auau', 'collisions', 'at', 'rhic', 'have', 'opened', 'a', 'new', 'window', 'to', 'study', 'the', 'energy', 'loss', 'of', 'partons', 'in', 'a', 'medium', 'in', 'a', 'more', 'differential', 'way', 'and', 'for', 'a', 'different', 'distribution', 'of', 'inmedium', 'pathlengths', 'than', 'in', 'the', 'case', 'of', 'r_aa', 'in', 'this', 'work', 'we', 'present', 'an', 'extrapolation', 'of', 'our', 'results', 'for', 'backtoback', 'yields', 'at', 'rhic', 'energies', 'to', '55', 'tev', 'pbpb', 'collisions', 'at', 'the', 'cern', 'lhc', 'we', 'also', 'discuss', 'differences', 'and', 'similarities', 'between', 'the', 'measurement', 'at', 'rhic']] | [-0.06443021458576316, 0.23441483159143084, -0.22200005568949313, 0.13861616229472531, 0.026228363839802385, -0.0662013632459459, -0.08938779294806608, 0.3668872757156476, -0.23194504622236195, -0.3044084148781224, -0.08527024839429356, -0.38621160526620757, 0.12303081929721152, 0.14405570529674278, 0.07390642121712539, 0.09372766431884026, 0.15419843754377857, -0.01839903761076088, -0.04215245050760842, -0.17629923336957207, 0.2954744372300097, 0.1731214825352975, 0.20432708089657384, 0.22166520078939483, 0.06499892630247699, 0.07612591077327385, -0.004861546266521595, 0.029124641170104344, -0.0821617484312162, 0.06370448056526815, 0.3214192919375578, 0.0021342993379388562, 0.16515733466761978, -0.35340169942456073, -0.1276931869128355, 0.12451442062918996, 0.14700587173915822, 0.09644792246265636, -0.10864512851080742, -0.20342287073184834, 0.10116385698757381, -0.2673063191415303, -0.13173031132539798, -0.022459208515697514, 0.002343019130693256, -0.0008735198904920755, -0.30754397976501235, 0.16328697872930875, -0.04211664782808933, 0.09398448769533044, -0.011461089758587808, -0.16150010522754712, -0.05910467438201752, -0.01106740828153902, 0.07844169869090313, 0.10610417340482028, 0.19176102094298722, -0.22047978327689885, -0.14699585077449165, 0.43528115036415643, 0.017550534854663787, -0.08389042177098407, 0.19884564883835698, -0.26715161659401554, -0.1279025909025222, 0.18268971203762138, 0.3000790096345042, 0.08502981414611654, -0.22224485327693067, -0.0036572745088594913, -0.01729790484746811, 0.18782767397752995, 0.12915952162999103, 0.12610801874697422, 0.13249562497668224, 0.21177787814308066, -0.031147171450168664, 0.10526924003444173, -0.10527379470930874, -0.0645305329302176, -0.41250361908955135, -0.06714218860791846, -0.1294377084725119, 0.053986089594458796, -0.09401287803116613, -0.011318105198014742, 0.3597911714918071, 0.09424455758269834, 0.3459696945033154, -0.049623217374145254, 0.30789658972115697, 0.0671383250316059, 0.04621409828876327, 0.14396739496592562, 0.3269239265107732, 0.15714130976141014, 0.27910079827382306, -0.253036136651979, 0.06278145444798872, 0.03063743978192837] |
711.3304 | A Novel Contact Resistance Model of Anisotropic Conductive Film for FPD
Packaging | In this research, a novel contact resistance model for the flat panel display
(FPD) packaging based on the within layer parallel and between layers series
resistance concepts was proposed. The FJ2530 anisotropic conductive films (ACF)
by Sony Inc. containing the currently smallest 3micron conductive particles was
used to conduct the experiments to verify the accuracy of the proposed model.
Calculated resistance of the chip-on-glass (COG) packaging by the proposed
model is 0.163\Omega. It is found that the gold bump with 0.162\Omega
resistance play the major role of the overall resistance. Although the
predicted resistance by the proposed model is only one third of the
experimentally measured value, it has been three-fold improvement compared to
the existing models.
| cs.OH | in this research a novel contact resistance model for the flat panel display fpd packaging based on the within layer parallel and between layers series resistance concepts was proposed the fj2530 anisotropic conductive films acf by sony inc containing the currently smallest 3micron conductive particles was used to conduct the experiments to verify the accuracy of the proposed model calculated resistance of the chiponglass cog packaging by the proposed model is 0163omega it is found that the gold bump with 0162omega resistance play the major role of the overall resistance although the predicted resistance by the proposed model is only one third of the experimentally measured value it has been threefold improvement compared to the existing models | [['in', 'this', 'research', 'a', 'novel', 'contact', 'resistance', 'model', 'for', 'the', 'flat', 'panel', 'display', 'fpd', 'packaging', 'based', 'on', 'the', 'within', 'layer', 'parallel', 'and', 'between', 'layers', 'series', 'resistance', 'concepts', 'was', 'proposed', 'the', 'fj2530', 'anisotropic', 'conductive', 'films', 'acf', 'by', 'sony', 'inc', 'containing', 'the', 'currently', 'smallest', '3micron', 'conductive', 'particles', 'was', 'used', 'to', 'conduct', 'the', 'experiments', 'to', 'verify', 'the', 'accuracy', 'of', 'the', 'proposed', 'model', 'calculated', 'resistance', 'of', 'the', 'chiponglass', 'cog', 'packaging', 'by', 'the', 'proposed', 'model', 'is', '0163omega', 'it', 'is', 'found', 'that', 'the', 'gold', 'bump', 'with', '0162omega', 'resistance', 'play', 'the', 'major', 'role', 'of', 'the', 'overall', 'resistance', 'although', 'the', 'predicted', 'resistance', 'by', 'the', 'proposed', 'model', 'is', 'only', 'one', 'third', 'of', 'the', 'experimentally', 'measured', 'value', 'it', 'has', 'been', 'threefold', 'improvement', 'compared', 'to', 'the', 'existing', 'models']] | [-0.06457779455138782, 0.05412354703531065, -0.04223266434732132, -0.024060123144706663, -0.02076974272340602, -0.16122110592267286, 0.010290163793741206, 0.3755698600470756, -0.2182993745082058, -0.3396237690395272, 0.044889254976616166, -0.3077813344224628, -0.17064292331646502, 0.22020535742188185, -0.03760378113734037, 0.06987781177761149, 0.03367429396829906, 0.0036140647181103717, -0.009786328850973365, -0.26964848743240655, 0.2649140950432459, 0.13030983943005908, 0.3978958513785516, 0.07940883704551817, 0.10014160109459283, -0.055157952354726404, 0.0028740719240982976, 0.05856665364771554, -0.11482914905837764, 0.09558139997740499, 0.22218448790841744, -0.005700958692839583, 0.23675245583156304, -0.4222971972869297, -0.21374752641185724, 0.03190890198524019, 0.0701296760544049, 0.07554651466321892, -0.03229765027897449, -0.250805205914843, 0.10209000138133204, -0.14750105942047276, -0.09072652949943347, -0.03316645008569534, 0.016340509460892823, -0.04241046635846121, -0.22168294585410886, 0.0778773222880982, 0.022634811052409685, 0.0491305069268508, -0.04922311260999568, -0.14817629311134858, -0.0635817307995352, 0.1353162096656727, 0.047910675045877565, 0.03927862124138438, 0.16388426479405468, -0.09835747075761643, -0.11607091992566015, 0.33744490505979124, -0.06572528252691294, -0.14351918602947442, 0.14937001201571418, -0.08704206004555427, -0.022029143288335967, 0.13207791735772537, 0.12758995084487626, 0.08595654320598176, -0.17641361637156358, 0.018552452774483513, -0.03313988836201946, 0.1882154553803096, 0.0682554602936174, -0.07210951659877875, 0.1803706396140356, 0.26455197485052545, -0.02620485041752062, 0.15537984060861204, -0.14909564720804647, -0.07100232832022506, -0.22983952722073311, -0.1811012217838861, -0.1503093687434211, 0.0037637958965012885, -0.06183797674896443, -0.18073506297263425, 0.39962023144703257, 0.1608623997019851, 0.16758509560496407, -0.006299584815525903, 0.324282688051627, 0.06631814621685617, 0.1693191984668374, 0.04854515407531135, 0.3004904140479269, 0.11759181050130421, 0.11603804364124626, -0.2346821712428885, 0.1742467282719053, 0.02300455862969424] |
711.3305 | Measurement Technique for Elastic and Mechanical Properties of
Polycrystalline Silicon-Germanium Films Using Surface Acoustic Waves and
Projection Masks | Using Rayleigh surface acoustic waves (SAW), the Young's modulus, the density
and the thickness of polycrystalline Silicon-Germanium (SiGe) films deposited
on silicon and SiO2 were measured, in excellent agreement with theory. The
dispersion curve of the propagating SAW is calculated with a Boundary Element
Method (BEM)-Model based on Green's functions. The propagating SAW is generated
with a nanosecond laser in a narrowband scheme projecting stripes from a mask
on the surface of the sample. For this purpose a glass mask and a liquid
crystal display (LCD) mask are used. The slope of the SAW is then measured
using a probe beam setup. From the wavelength of the mask and the frequency of
the measured SAW, the dispersion curve is determined point by point. Fitting
the BEM-Model to the measured nonlinear dispersion curve provides several
physical parameters simultaneously. In the present work this is demonstrated
for the Young's modulus, the density and the thickness of SiGe films. The
results from the narrowband scheme measurement are in excellent agreement with
separated measurements of the thickness (profilometer), the density (balance)
and the Young's modulus (nanoindenter).
| cs.OH | using rayleigh surface acoustic waves saw the youngs modulus the density and the thickness of polycrystalline silicongermanium sige films deposited on silicon and sio2 were measured in excellent agreement with theory the dispersion curve of the propagating saw is calculated with a boundary element method bemmodel based on greens functions the propagating saw is generated with a nanosecond laser in a narrowband scheme projecting stripes from a mask on the surface of the sample for this purpose a glass mask and a liquid crystal display lcd mask are used the slope of the saw is then measured using a probe beam setup from the wavelength of the mask and the frequency of the measured saw the dispersion curve is determined point by point fitting the bemmodel to the measured nonlinear dispersion curve provides several physical parameters simultaneously in the present work this is demonstrated for the youngs modulus the density and the thickness of sige films the results from the narrowband scheme measurement are in excellent agreement with separated measurements of the thickness profilometer the density balance and the youngs modulus nanoindenter | [['using', 'rayleigh', 'surface', 'acoustic', 'waves', 'saw', 'the', 'youngs', 'modulus', 'the', 'density', 'and', 'the', 'thickness', 'of', 'polycrystalline', 'silicongermanium', 'sige', 'films', 'deposited', 'on', 'silicon', 'and', 'sio2', 'were', 'measured', 'in', 'excellent', 'agreement', 'with', 'theory', 'the', 'dispersion', 'curve', 'of', 'the', 'propagating', 'saw', 'is', 'calculated', 'with', 'a', 'boundary', 'element', 'method', 'bemmodel', 'based', 'on', 'greens', 'functions', 'the', 'propagating', 'saw', 'is', 'generated', 'with', 'a', 'nanosecond', 'laser', 'in', 'a', 'narrowband', 'scheme', 'projecting', 'stripes', 'from', 'a', 'mask', 'on', 'the', 'surface', 'of', 'the', 'sample', 'for', 'this', 'purpose', 'a', 'glass', 'mask', 'and', 'a', 'liquid', 'crystal', 'display', 'lcd', 'mask', 'are', 'used', 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-0.22587230966245342, 0.06955868507890652, 0.04661015019648605] |
711.3306 | Effect of Surface Finish of Substrate on Mechanical Reliability of
in-48SN Solder Joints in Moems Package | Interfacial reactions and shear properties of the In-48Sn (in wt.%) ball grid
array (BGA) solder joints after bonding were investigated with four different
surface finishes of the substrate over an underlying Cu pad: electroplated
Ni/Au (hereafter E-NG), electroless Ni/immersion Au (hereafter ENIG), immersion
Ag (hereafter I-Ag) and organic solderability preservative (hereafter OSP).
During bonding, continuous AuIn2, Ni3(Sn,In)4 and Cu6(Sn,In)5 intermetallic
compound (IMC) layers were formed at the solder/E-NG, solder/ENIG and
solder/OSP interface, respectively. The interfacial reactions between the
solder and I-Ag substrate during bonding resulted in the formation of
Cu6(Sn,In)5 and Cu(Sn,In)2 IMCs with a minor Ag element. The In-48Sn/I-Ag
solder joint showed the best shear properties among the four solder joints
after bonding, whereas the solder/ENIG solder joint exhibited the weakest
mechanical integrity.
| cs.OH | interfacial reactions and shear properties of the in48sn in wt ball grid array bga solder joints after bonding were investigated with four different surface finishes of the substrate over an underlying cu pad electroplated niau hereafter eng electroless niimmersion au hereafter enig immersion ag hereafter iag and organic solderability preservative hereafter osp during bonding continuous auin2 ni3snin4 and cu6snin5 intermetallic compound imc layers were formed at the soldereng solderenig and solderosp interface respectively the interfacial reactions between the solder and iag substrate during bonding resulted in the formation of cu6snin5 and cusnin2 imcs with a minor ag element the in48sniag solder joint showed the best shear properties among the four solder joints after bonding whereas the solderenig solder joint exhibited the weakest mechanical integrity | [['interfacial', 'reactions', 'and', 'shear', 'properties', 'of', 'the', 'in48sn', 'in', 'wt', 'ball', 'grid', 'array', 'bga', 'solder', 'joints', 'after', 'bonding', 'were', 'investigated', 'with', 'four', 'different', 'surface', 'finishes', 'of', 'the', 'substrate', 'over', 'an', 'underlying', 'cu', 'pad', 'electroplated', 'niau', 'hereafter', 'eng', 'electroless', 'niimmersion', 'au', 'hereafter', 'enig', 'immersion', 'ag', 'hereafter', 'iag', 'and', 'organic', 'solderability', 'preservative', 'hereafter', 'osp', 'during', 'bonding', 'continuous', 'auin2', 'ni3snin4', 'and', 'cu6snin5', 'intermetallic', 'compound', 'imc', 'layers', 'were', 'formed', 'at', 'the', 'soldereng', 'solderenig', 'and', 'solderosp', 'interface', 'respectively', 'the', 'interfacial', 'reactions', 'between', 'the', 'solder', 'and', 'iag', 'substrate', 'during', 'bonding', 'resulted', 'in', 'the', 'formation', 'of', 'cu6snin5', 'and', 'cusnin2', 'imcs', 'with', 'a', 'minor', 'ag', 'element', 'the', 'in48sniag', 'solder', 'joint', 'showed', 'the', 'best', 'shear', 'properties', 'among', 'the', 'four', 'solder', 'joints', 'after', 'bonding', 'whereas', 'the', 'solderenig', 'solder', 'joint', 'exhibited', 'the', 'weakest', 'mechanical', 'integrity']] | [-0.11535885780203071, 0.11225119120115944, -0.017937212386591867, -0.09109182151203805, 0.01560060546987436, -0.1659009308088571, 0.04694921770979735, 0.4279710305346684, -0.2692054450850595, -0.2633560552431101, 0.01331471335301599, -0.3224400330546566, -0.14651398273523558, 0.07294215045456605, -0.026267853345383296, 0.01910372798923742, 0.019193133006708444, -0.07976961563002657, -0.06421212039845572, -0.20964667777615514, 0.2052371174986051, 0.12942245948890393, 0.30824765297160905, 0.06309940346347337, 0.08457298852418633, 0.04269849164411425, 0.026304467623545366, -0.020469489896839315, -0.16639297868294473, 0.0837844809051603, 0.2272207195404917, -0.035503560001961885, 0.17958293397148903, -0.5035292295569723, -0.1504389916546643, -0.059362523088401016, 0.02941638488555327, -0.017647131913426248, -0.020262725065483458, -0.24528545220594175, 0.09312303827398202, -0.12311138821850447, -0.03661161286714063, 0.0733388316732916, 0.009648691627874293, 0.06716769466398877, -0.19592604945329103, 0.061905226297676565, 0.09718709985979579, 0.13914981209037994, -0.11071031978565522, -0.19020714748396791, -0.2048311456457172, 0.07934835464481942, -0.011973349521444602, 0.005781434013889255, 0.2588232469321652, -0.029272274105724964, -0.01762465842449191, 0.35987971570681443, -0.010658413006670095, -0.07387447494124486, 0.22437937736976893, -0.10724614731628787, -0.11157135447825897, 0.1869446314617314, 0.11346013682936741, 0.052438990450040864, -0.19066949141296474, 0.045955292576796966, 0.08056938200606964, 0.17828405578832396, 0.2048606563867493, -0.0608261630277742, 0.19893746508962729, 0.20274623444473203, -0.012511474376713688, 0.1346073872409761, -0.1580476981291378, 0.004390716358003291, -0.19160247497599234, -0.2538905252702534, -0.1287213069471446, -0.0034858803984455086, -0.09549395217565523, -0.1758275560061024, 0.3140007647855038, -0.05395801746371118, 0.15244860993063247, -0.059290747361427004, 0.16540322683074257, -0.09099693061275915, 0.084554184185849, 0.033420976738191464, 0.27899071347307075, 0.1791354931658134, 0.1152195587870665, -0.23459144666399384, 0.17158120652787726, 0.07910286619073965] |
711.3307 | Quasiparticles at the verge of localization near the Mott
metal-insulator transition in a two-dimensional material | The dynamics of charge carriers close to the Mott transition is explored
theoretically and experimentally in the quasi two-dimensional organic
charge-transfer salt $\kappa$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Br$_x$Cl$_{1-x}$, with
varying Br content. The frequency dependence of the conductivity deviates
significantly from simple Drude model behavior: there is a strong
redistribution of spectral weight as the Mott transition is approached and with
temperature. The effective mass of the quasiparticles increases considerably
when coming close to the insulating phase. A dynamical mean-field-theory
treatment of the relevant Hubbard model gives a good quantitative description
of the experimental data.
| cond-mat.str-el cond-mat.mtrl-sci | the dynamics of charge carriers close to the mott transition is explored theoretically and experimentally in the quasi twodimensional organic chargetransfer salt kappabedtttf_2cuncn_2br_xcl_1x with varying br content the frequency dependence of the conductivity deviates significantly from simple drude model behavior there is a strong redistribution of spectral weight as the mott transition is approached and with temperature the effective mass of the quasiparticles increases considerably when coming close to the insulating phase a dynamical meanfieldtheory treatment of the relevant hubbard model gives a good quantitative description of the experimental data | [['the', 'dynamics', 'of', 'charge', 'carriers', 'close', 'to', 'the', 'mott', 'transition', 'is', 'explored', 'theoretically', 'and', 'experimentally', 'in', 'the', 'quasi', 'twodimensional', 'organic', 'chargetransfer', 'salt', 'kappabedtttf_2cuncn_2br_xcl_1x', 'with', 'varying', 'br', 'content', 'the', 'frequency', 'dependence', 'of', 'the', 'conductivity', 'deviates', 'significantly', 'from', 'simple', 'drude', 'model', 'behavior', 'there', 'is', 'a', 'strong', 'redistribution', 'of', 'spectral', 'weight', 'as', 'the', 'mott', 'transition', 'is', 'approached', 'and', 'with', 'temperature', 'the', 'effective', 'mass', 'of', 'the', 'quasiparticles', 'increases', 'considerably', 'when', 'coming', 'close', 'to', 'the', 'insulating', 'phase', 'a', 'dynamical', 'meanfieldtheory', 'treatment', 'of', 'the', 'relevant', 'hubbard', 'model', 'gives', 'a', 'good', 'quantitative', 'description', 'of', 'the', 'experimental', 'data']] | [-0.1100517373396021, 0.2008867079936219, -0.06032657139840421, 0.06324125240750485, -0.02117895550523581, -0.18063711449425415, 0.12113519447196401, 0.3515653142684631, -0.24925837023811562, -0.2456668068686228, -0.012487878877763751, -0.33922402458160783, -0.11937259288316363, 0.12862136518959416, 0.013849730710655954, 0.006646679175410713, -0.027552685399508375, 0.0009106387164485589, -0.13976030401215794, -0.15101044006342215, 0.2727232400087242, 0.0803980834551909, 0.33050033224097797, 0.12786743008228166, 0.016689182714339387, 0.0077882050876662634, 0.10694435601949356, 0.02120205465955346, -0.18168101434627276, 0.05276504741835125, 0.2564312480285429, -0.07025188787348485, 0.19199815576142643, -0.37481157077748456, -0.24701624791650625, 0.01808724550823315, 0.11928853388219088, 0.13995414069236328, -0.0729040619393999, -0.2554913222936265, -0.015443612737685776, -0.1935134913479344, -0.12876026451017372, -0.07034758735824836, 0.006051740514930714, -0.006444770364048943, -0.27023436486448965, 0.15904167747442882, 0.03323543981977299, 0.06527907734088013, -0.1215540297758462, -0.13750490682262384, -0.08740426920186938, 0.11191743467784006, 0.06995694987800265, 0.047036876216572654, 0.15971597472435972, -0.17154093382859162, -0.03268429219691355, 0.39955002210741297, -0.08443759172354312, -0.09654860905622749, 0.21580214614278814, -0.2076075389076108, -0.010635186935411347, 0.2321720610822687, 0.06833751720972778, 0.06876022958332735, -0.11512911402613181, 0.08218414295501379, -0.04324548306948181, 0.20034024533763362, -0.021437290585024305, 0.07024201854351866, 0.25367427248968166, 0.2472787846011905, -0.002872014491494452, 0.16884048266357252, -0.08703541125725495, -0.12394038408869103, -0.20344354314834215, -0.11817439104524556, -0.2431063345800876, 0.04600990153430553, -0.10162829110115044, -0.2039407248650625, 0.43631734079001155, 0.16415784140693002, 0.22820334859569086, -0.0034274743932686496, 0.25400384628538336, 0.17842430771417456, 0.03392289198798996, -0.0057662775101705215, 0.2505256438659232, 0.13926870893854437, 0.13230591363618882, -0.30985347204841673, 0.06628198815892931, 0.032669513004968] |
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