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712.1579 | Astrophysical Limits on Lorentz Violation for Pions | Pions, like nucleons, are composed primarily of up and down quarks and
gluons. Constraints on spin-independent Lorentz violation in the proton,
neutron, and pion sectors translate into bounds on Lorentz violation for the
fundamental fields. The best bounds on pion Lorentz violation come from
astrophysical measurements. The absence of the absorption process gamma -->
pi^(+) + pi^(-) for up to 50 TeV photons constrains the possibility that pions'
maximum achievable velocities are less than 1 at the 1.5 x 10^(-11) level. The
fact that pions with energies up to 30 TeV are observed to decay into photons
rather than hadrons bounds the possibility of a maximum velocity greater than 1
at the $2 x 10^(-9) level. This provides the first two-sided bounds on Lorentz
violation for pions.
| hep-ph | pions like nucleons are composed primarily of up and down quarks and gluons constraints on spinindependent lorentz violation in the proton neutron and pion sectors translate into bounds on lorentz violation for the fundamental fields the best bounds on pion lorentz violation come from astrophysical measurements the absence of the absorption process gamma pi pi for up to 50 tev photons constrains the possibility that pions maximum achievable velocities are less than 1 at the 15 x 1011 level the fact that pions with energies up to 30 tev are observed to decay into photons rather than hadrons bounds the possibility of a maximum velocity greater than 1 at the 2 x 109 level this provides the first twosided bounds on lorentz violation for pions | [['pions', 'like', 'nucleons', 'are', 'composed', 'primarily', 'of', 'up', 'and', 'down', 'quarks', 'and', 'gluons', 'constraints', 'on', 'spinindependent', 'lorentz', 'violation', 'in', 'the', 'proton', 'neutron', 'and', 'pion', 'sectors', 'translate', 'into', 'bounds', 'on', 'lorentz', 'violation', 'for', 'the', 'fundamental', 'fields', 'the', 'best', 'bounds', 'on', 'pion', 'lorentz', 'violation', 'come', 'from', 'astrophysical', 'measurements', 'the', 'absence', 'of', 'the', 'absorption', 'process', 'gamma', 'pi', 'pi', 'for', 'up', 'to', '50', 'tev', 'photons', 'constrains', 'the', 'possibility', 'that', 'pions', 'maximum', 'achievable', 'velocities', 'are', 'less', 'than', '1', 'at', 'the', '15', 'x', '1011', 'level', 'the', 'fact', 'that', 'pions', 'with', 'energies', 'up', 'to', '30', 'tev', 'are', 'observed', 'to', 'decay', 'into', 'photons', 'rather', 'than', 'hadrons', 'bounds', 'the', 'possibility', 'of', 'a', 'maximum', 'velocity', 'greater', 'than', '1', 'at', 'the', '2', 'x', '109', 'level', 'this', 'provides', 'the', 'first', 'twosided', 'bounds', 'on', 'lorentz', 'violation', 'for', 'pions']] | [-0.061673813831061124, 0.32810965056717395, -0.037317623164504765, 0.15281094474864948, -0.05554594728164375, -0.1173660921654664, 0.10224835151713342, 0.2974530873596668, -0.1571357911489904, -0.34080138224363327, -0.03995840476732701, -0.37895367899537086, 0.11272048933804035, 0.2008688323125243, 0.0928961183950305, 0.030907122153788803, 0.01444468762166798, 0.02844531807862222, -0.10448849707655608, -0.19976748143974693, 0.29173049673065543, 0.06177020102366805, 0.22656516268476845, 0.1408879835009575, 0.09412090862542391, -0.03519997690245509, -0.008902173664420842, -0.10538864817563444, -0.11317532351019327, 0.09069142617285252, 0.15896199934929608, 0.06687737035378814, 0.12117281084135174, -0.3828644669353962, -0.11414715275540947, 0.14975624010898173, 0.1401022624205798, 0.024877841597422956, -0.00275765603967011, -0.3219270482957363, 0.09088690264057368, -0.14635768428072332, -0.12417325536906719, -0.03824906497448683, 0.02189341810718179, -0.06602307866513729, -0.2826139999181032, 0.11123848750442267, 0.003489143465645611, 0.031653199173510074, -0.013376062158495189, -0.21273645513504744, 0.03680943397805095, -0.000762067262083292, 0.14702099901041948, 0.07517272681603208, 0.19929345029592513, -0.1649734859522432, -0.12264064144343138, 0.44492676690220834, -0.043600958970258945, -0.1645236866082996, 0.14108436293900012, -0.24857905343174935, -0.1392521363273263, 0.25454865393042564, 0.21782765420526265, 0.057459706554189326, -0.17318907352536916, 0.07166911109304056, -0.05052547037601471, 0.20923116075992584, 0.15770916372165084, 0.09688386741653085, 0.19096538505703212, 0.13353827311843633, 0.08507979024015368, 0.019104804579168556, -0.1024400789141655, -0.005776553630828857, -0.4017985812248662, -0.10368615357205271, -0.09290911121666431, 0.14160396811622195, -0.1370951844562078, 0.037689301561564206, 0.3274663752913475, 0.0720512990579009, 0.19262628828547895, 0.06134415963292122, 0.2967167445868254, 0.08004600683506578, 0.07943010538816452, 0.13911582873761655, 0.3536144990101457, 0.17588573619758244, 0.09557381370663642, -0.19350626862607898, 0.0011953303944319486, 0.03153418857976794] |
712.158 | Long Range Antiferromagnetic Ordering in the S = 1/2 Ordered Rock Salt
Oxide, Li5OsO6: Comparison with the Isoelectronicand Isostructural Spin
Glass, Li4MgReO6 | Li5OsO6 and Li5ReO6 polycrystalline samples were synthesized by conventional
solid state methods. Employing powder neutron diffraction data, the crystal
structure of Li5OsO6 was re-investigated. Li5OsO6 crystallizes in C2/m space
group in an ordered NaCl structure type where a = 5.0472(1) A, b = 8.7827(2) A,
c = 5.0079(1) A, Beta = 109.777(2) degree and V = 208.90(1).A^3 Magnetic
susceptibility and heat capacity data indicate an AFM long range order below
40K although there is evidence for low dimensional short range order above 80K.
As well, the frustration index, f = |theta|/TN ~1, in contrast to the
isostructural and isoelectronic compound, Li4MgReO6, which is a spin glass
below 12K and has f ~ 14. An attempt was made to rationalize these differences
using spin dimer analysis. The key results are that the spin exchange
interactions in the Re-based compound are stronger and are consistent with a
frustrated triangular lattice model while a low dimensional short range order
model is better for Li5OsO6. The main reason for this is a strong Jahn-Teller
distortion in the OsO6 octahedron material which constrains the unpaired
electron to occupy the dxy orbital.
| cond-mat.str-el cond-mat.mtrl-sci | li5oso6 and li5reo6 polycrystalline samples were synthesized by conventional solid state methods employing powder neutron diffraction data the crystal structure of li5oso6 was reinvestigated li5oso6 crystallizes in c2m space group in an ordered nacl structure type where a 504721 a b 878272 a c 500791 a beta 1097772 degree and v 208901a3 magnetic susceptibility and heat capacity data indicate an afm long range order below 40k although there is evidence for low dimensional short range order above 80k as well the frustration index f thetatn 1 in contrast to the isostructural and isoelectronic compound li4mgreo6 which is a spin glass below 12k and has f 14 an attempt was made to rationalize these differences using spin dimer analysis the key results are that the spin exchange interactions in the rebased compound are stronger and are consistent with a frustrated triangular lattice model while a low dimensional short range order model is better for li5oso6 the main reason for this is a strong jahnteller distortion in the oso6 octahedron material which constrains the unpaired electron to occupy the dxy orbital | [['li5oso6', 'and', 'li5reo6', 'polycrystalline', 'samples', 'were', 'synthesized', 'by', 'conventional', 'solid', 'state', 'methods', 'employing', 'powder', 'neutron', 'diffraction', 'data', 'the', 'crystal', 'structure', 'of', 'li5oso6', 'was', 'reinvestigated', 'li5oso6', 'crystallizes', 'in', 'c2m', 'space', 'group', 'in', 'an', 'ordered', 'nacl', 'structure', 'type', 'where', 'a', '504721', 'a', 'b', '878272', 'a', 'c', '500791', 'a', 'beta', '1097772', 'degree', 'and', 'v', '208901a3', 'magnetic', 'susceptibility', 'and', 'heat', 'capacity', 'data', 'indicate', 'an', 'afm', 'long', 'range', 'order', 'below', '40k', 'although', 'there', 'is', 'evidence', 'for', 'low', 'dimensional', 'short', 'range', 'order', 'above', '80k', 'as', 'well', 'the', 'frustration', 'index', 'f', 'thetatn', '1', 'in', 'contrast', 'to', 'the', 'isostructural', 'and', 'isoelectronic', 'compound', 'li4mgreo6', 'which', 'is', 'a', 'spin', 'glass', 'below', '12k', 'and', 'has', 'f', '14', 'an', 'attempt', 'was', 'made', 'to', 'rationalize', 'these', 'differences', 'using', 'spin', 'dimer', 'analysis', 'the', 'key', 'results', 'are', 'that', 'the', 'spin', 'exchange', 'interactions', 'in', 'the', 'rebased', 'compound', 'are', 'stronger', 'and', 'are', 'consistent', 'with', 'a', 'frustrated', 'triangular', 'lattice', 'model', 'while', 'a', 'low', 'dimensional', 'short', 'range', 'order', 'model', 'is', 'better', 'for', 'li5oso6', 'the', 'main', 'reason', 'for', 'this', 'is', 'a', 'strong', 'jahnteller', 'distortion', 'in', 'the', 'oso6', 'octahedron', 'material', 'which', 'constrains', 'the', 'unpaired', 'electron', 'to', 'occupy', 'the', 'dxy', 'orbital']] | [-0.12792512820761281, 0.2181069552975847, 0.0002003343900453234, 0.0312094729474054, -0.06156558039658076, -0.13546030203218173, 0.07681745233978227, 0.42136436689928264, -0.24992800019790382, -0.2787880629889275, 0.055540977606865743, -0.3556791524871182, -0.07211520166234359, 0.14847077748177256, 0.03346975734838617, -0.0001461728263581008, -0.02871997842336433, 0.039654556672736915, -0.12642130775142962, -0.2132860369652194, 0.24030491405803905, 0.04213175933252562, 0.28590672815283924, 0.049722012997011254, 0.06441382731362763, -0.007867598729153649, 0.1422654650152296, 0.010282263135073206, -0.170119835399658, 0.05824487172993042, 0.25940744483936035, -0.07584212053218606, 0.17152212650926338, -0.36757341643239844, -0.22743011179124142, 0.02720369081345131, 0.10314713243009763, 0.08648362068848464, -0.06753415747222964, -0.23856117772428612, 0.07955113767676208, -0.1650018030914583, -0.09359255853403163, -0.11621709140181019, -0.013143672885601981, -0.001383184429124673, -0.28575858028608303, 0.11345270270010598, 0.10967992804059487, 0.13325552034739144, -0.1207510810209253, -0.17610242305328927, -0.052339667409429684, 0.05579447019464004, 0.03881421540550648, 0.13232742708002093, 0.07612380782436383, -0.0552045957248131, -0.0895842157715485, 0.3879989706883915, -0.02799538494569756, -0.06086143861083608, 0.17317747207881326, -0.19635564831428623, -0.11275792638471688, 0.20209758924402035, 0.07990530428949101, 0.09475494243411554, -0.13610130623840777, 0.08377796385474012, -0.04847629232146935, 0.2661950393029821, 0.044574709840619946, 0.018984005407958526, 0.20215032479183867, 0.21344249030678636, 0.0060911565468978815, 0.14465539224244306, -0.1293616224821025, -0.05138553416476264, -0.18853972918939116, -0.1695447639883523, -0.20473635699654444, 0.04998170834018342, -0.09910975004173951, -0.14231786991017517, 0.3062357241641839, 0.08160326762154851, 0.17765957515054295, -0.06976721622185966, 0.2036377126882016, 0.040934569163558386, 0.07456307127297045, 0.01887754030928713, 0.1934563895001223, 0.1756207554012929, 0.10170367916866221, -0.2218883624436519, 0.0972498154501861, 0.03351522464174451] |
712.1581 | Regular elliptic boundary-value problem in a two-sided refined scale of
spaces | A regular elliptic boundary-value problem over a bounded domain with a smooth
boundary is studied. We prove that the operator of this problem is a Fredholm
one in the two-sided refined scale of the functional Hilbert spaces and
generates a complete collection of isomorphisms. Elements of this scale are the
isotropic spaces of Hormander-Volevich-Paneah and some its modifications. A
priori estimate for the solution is established and its regularity is
investigated.
| math.AP | a regular elliptic boundaryvalue problem over a bounded domain with a smooth boundary is studied we prove that the operator of this problem is a fredholm one in the twosided refined scale of the functional hilbert spaces and generates a complete collection of isomorphisms elements of this scale are the isotropic spaces of hormandervolevichpaneah and some its modifications a priori estimate for the solution is established and its regularity is investigated | [['a', 'regular', 'elliptic', 'boundaryvalue', 'problem', 'over', 'a', 'bounded', 'domain', 'with', 'a', 'smooth', 'boundary', 'is', 'studied', 'we', 'prove', 'that', 'the', 'operator', 'of', 'this', 'problem', 'is', 'a', 'fredholm', 'one', 'in', 'the', 'twosided', 'refined', 'scale', 'of', 'the', 'functional', 'hilbert', 'spaces', 'and', 'generates', 'a', 'complete', 'collection', 'of', 'isomorphisms', 'elements', 'of', 'this', 'scale', 'are', 'the', 'isotropic', 'spaces', 'of', 'hormandervolevichpaneah', 'and', 'some', 'its', 'modifications', 'a', 'priori', 'estimate', 'for', 'the', 'solution', 'is', 'established', 'and', 'its', 'regularity', 'is', 'investigated']] | [-0.16551698578654656, 0.06594352747446725, -0.10088675888255239, 0.11482161281164735, -0.1033561654921089, -0.0832950236076223, -0.034942231360556825, 0.3455161727166602, -0.348783565312624, -0.1817349358195705, 0.203901990880591, -0.27414960289107904, -0.10946335635297666, 0.18829659284757716, -0.11071881334896067, 0.08228634769995032, 0.08168296244527612, 0.09037594393427884, -0.1310516293260402, -0.21974208323684122, 0.4262067280310605, -0.05479969211987087, 0.19406071198172867, 0.0759120717045984, 0.1505544105977086, -0.03282773620449007, -0.030186257817383322, 0.02670077175966331, -0.15088821961929041, 0.18694786473643035, 0.25962842676256387, 0.057723458972759545, 0.31575412723634927, -0.3728957599827221, -0.22042124458987797, 0.15036369132410202, 0.07872138414531946, 0.03327696500346065, -0.05225621922706653, -0.26466822522758904, 0.12307995400416465, -0.1013264530471393, -0.1777362523201321, -0.03694065957928875, 0.0317538583651185, 0.008727736531623773, -0.3438652868781771, 0.04745158704796008, 0.09179890767804214, 0.07279799530016524, -0.13040790721840625, -0.024971153108136995, -0.01776473272059645, 0.08368304993159005, -0.011036338085042579, 0.04254999301130218, 0.0483387296287609, -0.0979750177756484, -0.07122402180518422, 0.36189397968451625, -0.02658882405791831, -0.29055017403193883, 0.1164909231767524, -0.13214754782883184, -0.09038498382350164, 0.0984757480344602, 0.10198555109756334, 0.19688414496236614, -0.10629211497892227, 0.19949167647282592, -0.114352997523799, 0.13555980062644396, 0.0817320837306657, 0.013101281658081072, 0.06686095520853996, 0.1837608788561608, 0.15705927147396972, 0.1503546566170241, -0.001363900553302041, -0.07523240613850898, -0.3630070921299713, -0.18110903468249098, -0.18358231049164064, 0.07196700215073569, -0.12754779186569587, -0.25388200093459873, 0.4181679523416928, 0.05946441812307707, 0.20164207379732813, 0.09399229292092579, 0.22133795744074242, 0.14396459089059915, 0.021140239860064216, 0.06677839827856848, 0.17726660274576198, 0.15744196514133363, 0.09384911269714524, -0.16003188218123146, 0.032600311861772625, 0.16854881119444534] |
712.1582 | Dense Holographic QCD in the Wigner-Seitz Approximation | We investigate cold dense matter in the context of Sakai and Sugimoto's
holographic model of QCD in the Wigner-Seitz approximation. In bulk, baryons
are treated as instantons on S^3\times R^1 in each Wigner-Seitz cell. In
holographic QCD, Skyrmions are instanton holonomies along the conformal
direction. The high density phase is identified with a crystal of holographic
Skyrmions with restored chiral symmetry at about 4 Mkk^3/pi^5. As the average
density goes up, it approaches to uniform distribution while the chiral
condensate approaches to p-wave over a cell. The chiral symmetry is effectively
restored in long wavelength limit since the chiral order parameter is averaged
to be zero over a cell. The energy density in dense medium varies as n_B^{5/3},
which is the expected power for non-relativistic fermion. This shows that the
Pauli exclusion effect in boundary is encoded in the Coulomb repulsion in the
bulk.
| hep-th hep-ph | we investigate cold dense matter in the context of sakai and sugimotos holographic model of qcd in the wignerseitz approximation in bulk baryons are treated as instantons on s3times r1 in each wignerseitz cell in holographic qcd skyrmions are instanton holonomies along the conformal direction the high density phase is identified with a crystal of holographic skyrmions with restored chiral symmetry at about 4 mkk3pi5 as the average density goes up it approaches to uniform distribution while the chiral condensate approaches to pwave over a cell the chiral symmetry is effectively restored in long wavelength limit since the chiral order parameter is averaged to be zero over a cell the energy density in dense medium varies as n_b53 which is the expected power for nonrelativistic fermion this shows that the pauli exclusion effect in boundary is encoded in the coulomb repulsion in the bulk | [['we', 'investigate', 'cold', 'dense', 'matter', 'in', 'the', 'context', 'of', 'sakai', 'and', 'sugimotos', 'holographic', 'model', 'of', 'qcd', 'in', 'the', 'wignerseitz', 'approximation', 'in', 'bulk', 'baryons', 'are', 'treated', 'as', 'instantons', 'on', 's3times', 'r1', 'in', 'each', 'wignerseitz', 'cell', 'in', 'holographic', 'qcd', 'skyrmions', 'are', 'instanton', 'holonomies', 'along', 'the', 'conformal', 'direction', 'the', 'high', 'density', 'phase', 'is', 'identified', 'with', 'a', 'crystal', 'of', 'holographic', 'skyrmions', 'with', 'restored', 'chiral', 'symmetry', 'at', 'about', '4', 'mkk3pi5', 'as', 'the', 'average', 'density', 'goes', 'up', 'it', 'approaches', 'to', 'uniform', 'distribution', 'while', 'the', 'chiral', 'condensate', 'approaches', 'to', 'pwave', 'over', 'a', 'cell', 'the', 'chiral', 'symmetry', 'is', 'effectively', 'restored', 'in', 'long', 'wavelength', 'limit', 'since', 'the', 'chiral', 'order', 'parameter', 'is', 'averaged', 'to', 'be', 'zero', 'over', 'a', 'cell', 'the', 'energy', 'density', 'in', 'dense', 'medium', 'varies', 'as', 'n_b53', 'which', 'is', 'the', 'expected', 'power', 'for', 'nonrelativistic', 'fermion', 'this', 'shows', 'that', 'the', 'pauli', 'exclusion', 'effect', 'in', 'boundary', 'is', 'encoded', 'in', 'the', 'coulomb', 'repulsion', 'in', 'the', 'bulk']] | [-0.15554379919834488, 0.2382599864194685, -0.091012088202125, 0.05246038832338461, -0.02384464731373897, -0.0880662015612825, 0.034274325385716155, 0.366002113399829, -0.19196919090253242, -0.23339875848428843, 0.02949694889029554, -0.29165986987451714, -0.05117830002997467, 0.03165737460020612, 0.00048196954150677573, 0.053434121422469616, -0.08422828614975966, 0.09329429284359018, -0.10507665182701609, -0.24256874354727936, 0.26030907590364943, -0.0017222687337838166, 0.31036306703578787, 0.11853586066950192, 0.056280442186571814, -0.015030119226294313, 0.04851384095332407, 0.03331682299006176, -0.11592077326009105, 0.02381378528496898, 0.22930345368812666, -0.04748177053803142, 0.1513229902661967, -0.4532294830716882, -0.2854177593947091, 0.06262756451132133, 0.20679161631574866, 0.15382971639781265, -0.0009001771818701152, -0.2805884470238436, 0.09197027557562534, -0.20408517866005713, -0.18417469050127563, -0.0640621205316262, -0.006467647571446942, -0.03298951775299597, -0.239526720938821, 0.14109704165524597, -0.005054526516493965, 0.013193503656492285, -0.0608294282012771, -0.10305223074834133, -0.060236588866839594, 0.052696864721728555, 0.09447804692198014, 0.0954698579986943, 0.16880484910992286, -0.20246139487271456, -0.04970144912111738, 0.43918869670163446, -0.0699019499737373, -0.19009996773609034, 0.11173070565275584, -0.15794517504090957, -0.09932771714483486, 0.14558872144590032, 0.11826653140456686, 0.09638047646004574, -0.09302184540210358, 0.14613707191170464, -0.065310274853523, 0.1379480739850683, 0.11225127218727102, 0.046543663228921436, 0.277270194190944, 0.17633493586380616, 0.05944228066620252, 0.127266390263169, -0.07780321866458824, -0.15371058762390563, -0.3385061127998939, -0.136848184200836, -0.23969612651874464, 0.04410530934572643, -0.13057288218358554, -0.15218374234828966, 0.3568592029683546, 0.10761904884045134, 0.21380458220159174, -0.009806672564430281, 0.2810264581976234, 0.09154536243254015, 0.1140838635603217, 0.048979578189657515, 0.24966296980633063, 0.1786972952095118, 0.10028468665472028, -0.2795775149856423, -0.07879685233380143, 0.11055712588296555] |
712.1583 | On fibering and splitting of 5-manifolds over the circle | Our main result is a generalization of Cappell's 5-dimensional splitting
theorem. As an application, we analyze, up to internal s-cobordism, the
smoothable splitting and fibering problems for certain 5-manifolds mapping to
the circle. For example, these maps may have homotopy fibers which are in the
class of finite connected sums of certain geometric 4-manifolds. Most of these
homotopy fibers have non-vanishing second mod 2 homology and have fundamental
groups of exponential growth, which are not known to be tractable by
Freedman--Quinn topological surgery. Indeed, our key technique is topological
cobordism, which may not be the trace of surgeries.
| math.GT math.AT | our main result is a generalization of cappells 5dimensional splitting theorem as an application we analyze up to internal scobordism the smoothable splitting and fibering problems for certain 5manifolds mapping to the circle for example these maps may have homotopy fibers which are in the class of finite connected sums of certain geometric 4manifolds most of these homotopy fibers have nonvanishing second mod 2 homology and have fundamental groups of exponential growth which are not known to be tractable by freedmanquinn topological surgery indeed our key technique is topological cobordism which may not be the trace of surgeries | [['our', 'main', 'result', 'is', 'a', 'generalization', 'of', 'cappells', '5dimensional', 'splitting', 'theorem', 'as', 'an', 'application', 'we', 'analyze', 'up', 'to', 'internal', 'scobordism', 'the', 'smoothable', 'splitting', 'and', 'fibering', 'problems', 'for', 'certain', '5manifolds', 'mapping', 'to', 'the', 'circle', 'for', 'example', 'these', 'maps', 'may', 'have', 'homotopy', 'fibers', 'which', 'are', 'in', 'the', 'class', 'of', 'finite', 'connected', 'sums', 'of', 'certain', 'geometric', '4manifolds', 'most', 'of', 'these', 'homotopy', 'fibers', 'have', 'nonvanishing', 'second', 'mod', '2', 'homology', 'and', 'have', 'fundamental', 'groups', 'of', 'exponential', 'growth', 'which', 'are', 'not', 'known', 'to', 'be', 'tractable', 'by', 'freedmanquinn', 'topological', 'surgery', 'indeed', 'our', 'key', 'technique', 'is', 'topological', 'cobordism', 'which', 'may', 'not', 'be', 'the', 'trace', 'of', 'surgeries']] | [-0.19865084629621088, 0.09640882353039731, -0.1180257702668764, 0.08026547426809125, -0.10620001364096078, -0.16963248161272598, -0.02845243337688987, 0.35723940388673975, -0.31568424466675743, -0.2772397313209385, 0.15977481310615874, -0.21469238459987125, -0.1927210954449994, 0.23813138977077203, -0.1779204007506985, 0.02022996115781482, 0.027317710792088938, 0.040094522466479814, -0.04145978006159829, -0.30963643676644553, 0.40570788430146026, -0.06636807457879954, 0.20199010324685115, 0.1208039235585302, 0.06875319368465199, -0.052701082341036924, -0.0008676269850165574, 0.0128754047753731, -0.14226000477108605, 0.1494468880010788, 0.3204853848035726, 0.029625209778086425, 0.17915827909618923, -0.35661108895521804, -0.19671466825625947, 0.18237656340622296, 0.15385566695026823, 0.043091757790684776, -0.012122394718690631, -0.28454224506066633, 0.16038004392469973, -0.1468360168072059, -0.10835100932181188, -0.14004264031200833, -0.00781864386301526, 0.04943828984012481, -0.14815814223754958, -0.028111892493115256, 0.11595392538253795, 0.09071013341569606, -0.042401769652136975, -0.060050842277801685, -0.04619483673253778, 0.17159294985599585, 0.04854038708180804, 0.053406662398891656, 0.10983588206629778, -0.08232270103888874, -0.142801841077654, 0.36498601509008516, -0.03233855273982644, -0.21785047350777792, 0.15952420333573192, -0.1095789095396464, -0.24124122544470214, 0.1906824488788075, 0.0778860735524561, 0.1528250881153898, -0.060512865077435356, 0.10263776869306668, -0.08775167683734722, 0.09089589881297853, 0.10825248882558543, -0.007462114479738413, 0.16109084717439698, 0.08599226477978386, 0.1512476453994468, 0.12442283382994536, -0.010785522073814549, -0.06097847807518754, -0.3295508714527199, -0.23784205195081143, -0.1535239620806323, 0.1754654344683153, -0.13803744263864198, -0.19844870367471473, 0.38242899557364357, 0.019673248904171523, 0.15774008009544352, 0.13195796924542405, 0.23281483536048495, 0.06456807371560178, 0.11465307376011438, 0.015969189795045562, 0.17950714302738918, 0.2095585832487523, -0.03758361487236527, -0.09262288948815056, -0.03224673852343688, 0.19614105410009777] |
712.1584 | Recent Progress and Puzzles in Charmonium Physics | While the charmonium model has been effective in describing ccbar bound
mesons, there have been many recently discovered charmonium-like states it
cannot accommodate. Here I provide a review of recent results from the
B-factories including the X(3872), three new particles in the mass range near
3.93 GeV, and four new resonances in initial state radiation (ISR) decays.
| hep-ex | while the charmonium model has been effective in describing ccbar bound mesons there have been many recently discovered charmoniumlike states it cannot accommodate here i provide a review of recent results from the bfactories including the x3872 three new particles in the mass range near 393 gev and four new resonances in initial state radiation isr decays | [['while', 'the', 'charmonium', 'model', 'has', 'been', 'effective', 'in', 'describing', 'ccbar', 'bound', 'mesons', 'there', 'have', 'been', 'many', 'recently', 'discovered', 'charmoniumlike', 'states', 'it', 'can', 'not', 'accommodate', 'here', 'i', 'provide', 'a', 'review', 'of', 'recent', 'results', 'from', 'the', 'bfactories', 'including', 'the', 'x3872', 'three', 'new', 'particles', 'in', 'the', 'mass', 'range', 'near', '393', 'gev', 'and', 'four', 'new', 'resonances', 'in', 'initial', 'state', 'radiation', 'isr', 'decays']] | [-0.03091501128249641, 0.2575640613454041, -0.12504343049408034, 0.11390311945358227, -0.05043670862656215, -0.17905800278170098, 0.023067106037191917, 0.32989370350822295, -0.12416246384061103, -0.2921787091241828, -0.009383517957758158, -0.34710726345857157, -0.030363503715087628, 0.14958021134250507, 0.053899611531082414, 0.15593202074925447, 0.12481462387046938, 0.03011566110342693, 0.0011362717336380918, -0.20592180366732243, 0.3111269071714246, -0.030168527319770436, 0.18967866456007648, 0.19762812762778123, 0.00660782103458869, -0.0458243227371111, 0.023596472949881493, -0.08163212156244393, -0.15774219750089508, 0.024097347924092398, 0.22625078097114276, 0.15994894038082969, 0.1969511539370207, -0.34724366301991816, -0.2058891024890131, 0.13637589597432265, 0.21448095003142953, 0.16046571687811279, -0.11663120729720285, -0.3645794321461741, 0.09731752857373192, -0.2427662001713982, -0.0937145097855607, -0.10816350042948435, 0.07389561640869441, -0.05795075608806781, -0.23982278903914167, 0.0287889745061342, -0.047676630739668574, 0.04724782578203554, -0.08846703971382873, -0.29451837790487656, 0.004689109158413163, 0.006254146413492231, 0.09718388285094487, 0.09446047911227777, 0.11622355769163575, -0.152729206301015, -0.23438857498996216, 0.3514278928311702, -0.03889828832049308, -0.10266413448121527, 0.21897611432259195, -0.17892390738064745, -0.2027425747284473, 0.1746129325855973, 0.1980742322730607, 0.06625413401694648, -0.21283009270976844, 0.1297158094209314, -0.09753873385488987, 0.11918351999162857, 0.08634653403263154, 0.157254745509347, 0.2351507218554616, 0.20260353315750074, -0.06298948986283183, 0.052790764610861136, -0.08723397750471687, -0.08394039268123693, -0.28696703284593494, -0.11633916414073861, -0.13717030538727754, 0.050865486862613614, 0.05136682483360597, -0.038898755065647175, 0.41790602041472646, 0.08163365724111168, 0.2722503621580786, -0.08526738395850206, 0.24090620669825324, 0.07136688100694426, 0.06293208791135714, 0.12380651259345227, 0.40666363438880393, 0.1531390992860342, 0.17787612406617223, -0.1685937859944935, 0.026211855300814556, -0.030850589981880682] |
712.1585 | Lines of Curvature on Surfaces, Historical Comments and Recent
Developments | This survey starts with the historical landmarks leading to the study of
principal configurations on surfaces, their structural stability and further
generalizations. Here it is pointed out that in the work of Monge, 1796, are
found elements of the qualitative theory of differential equations (QTDE),
founded by Poincar\'e in 1881. Here are also outlined a number of recent
results developed after the assimilation into the subject of concepts and
problems from the QTDE and Dynamical Systems, such as Structural Stability,
Bifurcations and Genericity, among others, as well as extensions to higher
dimensions. References to original works are given and open problems are
proposed at the end of some sections.
| math.DG math.DS | this survey starts with the historical landmarks leading to the study of principal configurations on surfaces their structural stability and further generalizations here it is pointed out that in the work of monge 1796 are found elements of the qualitative theory of differential equations qtde founded by poincare in 1881 here are also outlined a number of recent results developed after the assimilation into the subject of concepts and problems from the qtde and dynamical systems such as structural stability bifurcations and genericity among others as well as extensions to higher dimensions references to original works are given and open problems are proposed at the end of some sections | [['this', 'survey', 'starts', 'with', 'the', 'historical', 'landmarks', 'leading', 'to', 'the', 'study', 'of', 'principal', 'configurations', 'on', 'surfaces', 'their', 'structural', 'stability', 'and', 'further', 'generalizations', 'here', 'it', 'is', 'pointed', 'out', 'that', 'in', 'the', 'work', 'of', 'monge', '1796', 'are', 'found', 'elements', 'of', 'the', 'qualitative', 'theory', 'of', 'differential', 'equations', 'qtde', 'founded', 'by', 'poincare', 'in', '1881', 'here', 'are', 'also', 'outlined', 'a', 'number', 'of', 'recent', 'results', 'developed', 'after', 'the', 'assimilation', 'into', 'the', 'subject', 'of', 'concepts', 'and', 'problems', 'from', 'the', 'qtde', 'and', 'dynamical', 'systems', 'such', 'as', 'structural', 'stability', 'bifurcations', 'and', 'genericity', 'among', 'others', 'as', 'well', 'as', 'extensions', 'to', 'higher', 'dimensions', 'references', 'to', 'original', 'works', 'are', 'given', 'and', 'open', 'problems', 'are', 'proposed', 'at', 'the', 'end', 'of', 'some', 'sections']] | [-0.07418693890403434, 0.07505887563592781, -0.07610402649016093, 0.05612060830658563, -0.05319605709845635, -0.08540154433978948, 0.020388658884172895, 0.32228829960608596, -0.27139055021716474, -0.29999224891207205, 0.16340432750174305, -0.3079111128719088, -0.20382238915799378, 0.20815778714300037, -0.09363488166671351, 0.09327255629838627, 0.0489947610125642, 0.04171272008636288, -0.08331926274287436, -0.30317364855904444, 0.3405605428678062, 0.06639418403278584, 0.2217876096647755, 0.03869640448121963, 0.0701795717152967, -0.027735341228240073, -0.07524291223576554, 0.059665120924849095, -0.1510444182283642, 0.12309349024511665, 0.28114969049641325, 0.12490567880482456, 0.26476059946292474, -0.4212601139149237, -0.2142709193220275, 0.02936557746518438, 0.1133459254350757, 0.10337220070008885, -0.02128841610142317, -0.30373564232837097, 0.09324775386175194, -0.1082138792202573, -0.1483871441848019, -0.10589869544084106, 0.03925726602450187, 0.07737920099703996, -0.1769533348237121, 0.05146212533533042, 0.0850416516434188, 0.09923340458527347, -0.0914112535331433, -0.13965272275887639, -0.062354991658564625, 0.10973518080226033, 0.09326572526925217, -0.024450635792095665, 0.07206679540294632, -0.09953618347949444, -0.14354993567244959, 0.3903541380765839, 0.004716864374692543, -0.18525488768643308, 0.21379803822845847, -0.09166813482939501, -0.16720872127372666, 0.07637902913358341, 0.14815958888296074, 0.11812347951769463, -0.1422057841669455, 0.07408556980722819, -0.02796650811089812, 0.10019341585385204, 0.09873193041116834, 0.018930716387857902, 0.1732624095176982, 0.15144953365975156, 0.05883562713252189, 0.1257079301737075, -0.03200285033775476, -0.13218770967361249, -0.32343233709014674, -0.12667369293310096, -0.09271701079331965, 0.026217399604583733, -0.02640494850840067, -0.13829675434313923, 0.39675415979228285, 0.14722256652279714, 0.21145677880958488, 0.01391566795825732, 0.24890521135416196, 0.07112701827003055, 0.03274909354187113, 0.02045338809986329, 0.22779919770812815, 0.1911474432922447, 0.12131562573121529, -0.1552861659835467, 0.011539899853980778, 0.0804897475091166] |
712.1586 | Excitation energies from ground-state density-functionals by means of
generator coordinates | The generator-coordinate method is a flexible and powerful reformulation of
the variational principle. Here we show that by introducing a generator
coordinate in the Kohn-Sham equation of density-functional theory, excitation
energies can be obtained from ground-state density functionals. As a viability
test, the method is applied to ground-state energies and various types of
excited-state energies of atoms and ions from the He and the Li isoelectronic
series. Results are compared to a variety of alternative DFT-based approaches
to excited states, in particular time-dependent density-functional theory with
exact and approximate potentials.
| physics.chem-ph cond-mat.mtrl-sci physics.atom-ph | the generatorcoordinate method is a flexible and powerful reformulation of the variational principle here we show that by introducing a generator coordinate in the kohnsham equation of densityfunctional theory excitation energies can be obtained from groundstate density functionals as a viability test the method is applied to groundstate energies and various types of excitedstate energies of atoms and ions from the he and the li isoelectronic series results are compared to a variety of alternative dftbased approaches to excited states in particular timedependent densityfunctional theory with exact and approximate potentials | [['the', 'generatorcoordinate', 'method', 'is', 'a', 'flexible', 'and', 'powerful', 'reformulation', 'of', 'the', 'variational', 'principle', 'here', 'we', 'show', 'that', 'by', 'introducing', 'a', 'generator', 'coordinate', 'in', 'the', 'kohnsham', 'equation', 'of', 'densityfunctional', 'theory', 'excitation', 'energies', 'can', 'be', 'obtained', 'from', 'groundstate', 'density', 'functionals', 'as', 'a', 'viability', 'test', 'the', 'method', 'is', 'applied', 'to', 'groundstate', 'energies', 'and', 'various', 'types', 'of', 'excitedstate', 'energies', 'of', 'atoms', 'and', 'ions', 'from', 'the', 'he', 'and', 'the', 'li', 'isoelectronic', 'series', 'results', 'are', 'compared', 'to', 'a', 'variety', 'of', 'alternative', 'dftbased', 'approaches', 'to', 'excited', 'states', 'in', 'particular', 'timedependent', 'densityfunctional', 'theory', 'with', 'exact', 'and', 'approximate', 'potentials']] | [-0.013889962201938033, 0.08250651660685739, -0.10178997445230682, 0.0938593581965607, 0.022355026482707926, -0.12960390380273262, 0.06741007565675924, 0.39313580720788904, -0.2303986186109897, -0.2965648787096143, -0.025911802837314705, -0.29639975366493065, -0.1130013117980626, 0.16011149330685537, 0.04208094370551407, 0.08670391422799892, 0.08856306543521997, -0.009269041588736905, -0.13134785858241635, -0.1698717380873859, 0.266893743384733, 0.07003722656518221, 0.26845887853350076, 0.08698148178971477, 0.0547525179055002, -0.02176178197065989, 0.08552410123973257, 0.050120382776690856, -0.1325855153008888, 0.1943867372006126, 0.27525742494811617, 0.06961439109096924, 0.2700220791416036, -0.47305417503747677, -0.22666429681703448, 0.016151109906948274, 0.08128812256941778, 0.23441345214119388, -0.062327487342473537, -0.31078968207455343, 0.0318150833210287, -0.19749972524328363, -0.15923699598448973, -0.1799456232227385, -0.01582330067952474, 0.10341816477787992, -0.28136354256421325, 0.10340599360254904, -0.03620522236968908, 0.03371620406914089, -0.13168631461448968, -0.1476799908094108, -0.02938101553202917, -0.0019895234869586097, 0.040649982733238076, 0.0388794879325562, 0.13524117135028874, -0.05344397323206067, -0.11847518875987993, 0.3989481228196787, -0.09313605475342936, -0.17931344986427575, 0.1981459626927972, -0.05179761884630554, -0.14501782082047107, 0.13512342989755174, 0.08743147558933641, 0.19106961281763182, -0.16215716950181458, 0.14088559324219305, 0.029676957165874127, 0.1364130641333759, 0.05276652933098376, 0.014900085190311075, 0.12311058032015959, 0.09740991638714655, 0.024113708729338316, 0.10103835280493109, -0.09492841383649243, -0.12868419542080825, -0.27290987223386765, -0.1671751732769836, -0.23986548296331117, 0.07062288949059116, -0.03558390789015296, -0.15565212294459344, 0.42462010129044453, 0.1249445386023985, 0.1272445526594917, -0.006954850908368826, 0.25192208267334437, 0.16817889900800462, 0.013499860537962781, 0.010538002382963896, 0.2177020486858156, 0.2033701829224204, 0.020697287646018796, -0.25593287182920094, -0.006634697356882195, 0.11458910089244859] |
712.1587 | A planar multipole ion trap | We report on the realisation of a chip-based multipole ion trap manufactured
using micro-electromechanical systems (MEMS) technology. It provides ion
confinement in an almost field-free volume between two planes of radiofrequency
electrodes, deposited on glass substrates, which allows for optical access to
the trap. An analytical model of the effective trapping potential is presented
and compared with numerical calculations. Stable trapping of argon ions is
achieved and a lifetime of 16s is measured. Electrostatic charging of the chip
surfaces is studied and found to agree with a numerical estimate.
| physics.atom-ph | we report on the realisation of a chipbased multipole ion trap manufactured using microelectromechanical systems mems technology it provides ion confinement in an almost fieldfree volume between two planes of radiofrequency electrodes deposited on glass substrates which allows for optical access to the trap an analytical model of the effective trapping potential is presented and compared with numerical calculations stable trapping of argon ions is achieved and a lifetime of 16s is measured electrostatic charging of the chip surfaces is studied and found to agree with a numerical estimate | [['we', 'report', 'on', 'the', 'realisation', 'of', 'a', 'chipbased', 'multipole', 'ion', 'trap', 'manufactured', 'using', 'microelectromechanical', 'systems', 'mems', 'technology', 'it', 'provides', 'ion', 'confinement', 'in', 'an', 'almost', 'fieldfree', 'volume', 'between', 'two', 'planes', 'of', 'radiofrequency', 'electrodes', 'deposited', 'on', 'glass', 'substrates', 'which', 'allows', 'for', 'optical', 'access', 'to', 'the', 'trap', 'an', 'analytical', 'model', 'of', 'the', 'effective', 'trapping', 'potential', 'is', 'presented', 'and', 'compared', 'with', 'numerical', 'calculations', 'stable', 'trapping', 'of', 'argon', 'ions', 'is', 'achieved', 'and', 'a', 'lifetime', 'of', '16s', 'is', 'measured', 'electrostatic', 'charging', 'of', 'the', 'chip', 'surfaces', 'is', 'studied', 'and', 'found', 'to', 'agree', 'with', 'a', 'numerical', 'estimate']] | [-0.13171415754562515, 0.14200650562638198, -0.032437423003439825, -0.05913486587553379, 0.05685026721840494, -0.21515131152098935, 0.008088457073723332, 0.46194097671783374, -0.15274012057382738, -0.2998883517438106, 0.030728991262436833, -0.2973761143965, -0.020095587894451292, 0.27635906897799184, -0.013841423331602905, 0.075844270929307, 0.039741845989830035, -0.052239598905186306, -0.02924790927941461, -0.1802196285966653, 0.199440706217808, 0.10918962045080877, 0.30767591896184376, 0.13970757571436213, 0.1300681142575955, -0.03601928225331259, 0.05044631905895605, -0.004500172373032972, -0.15846663777810638, 0.16726679067399478, 0.2084107001212666, -0.04945168039353376, 0.20324916028407183, -0.500891422156998, -0.19800933469296172, 0.019946128437347877, 0.144101406259232, 0.15449576414833788, -0.15790600629178075, -0.25370225184230827, 0.006572633094855406, -0.17380448202654886, -0.15696640898672382, -0.07066457511417651, 0.01823493179844253, 0.0761523972464244, -0.3024187759192807, 0.01067171744796908, -0.0048245816894419745, 0.10295274796863962, -0.1271361879163338, -0.09277223018155004, -0.006432668693112523, 0.03784634904894099, -0.04787641158981479, -2.5671357393599628e-05, 0.24715449641134296, -0.03303661736335312, -0.09621070467689063, 0.3791782156763117, -0.05015018492351087, -0.1531209017076854, 0.19480534588520446, -0.14612040934519152, 0.022868419934608294, 0.15413760066717822, 0.16650147697354636, 0.10684593109769767, -0.17459235274431745, 0.046645787458872066, 0.03354732341687666, 0.1971090461034753, 0.125636748237054, 0.006124019335034523, 0.20114176316458857, 0.2879146174200695, 0.056893280479701214, 0.15153831478798227, -0.1279530295882416, -0.055092766812971136, -0.23964320497817537, -0.16074010639796765, -0.22625767871256122, 0.022207073051105725, -0.02821500452835076, -0.18409135892171036, 0.3625627870074986, 0.1063994641593668, 0.11159006342438332, -0.04531538671044779, 0.33006987088684286, 0.0689622995475035, 0.08006214208670714, -0.01659483232357529, 0.2850309188341659, 0.18699720334470943, 0.12022827777048845, -0.2673201965105333, 0.006321932618202788, 0.01598208804688092] |
712.1588 | Frequency Domain Simulations of Charge-Density-Wave Strains: Comparison
with Electro-Optic Measurements | We have studied changes in charge-density-wave strain under application of
square-wave currents of variable amplitude and frequency by numerically solving
the phase-slip augmented diffusion model introduced by Adelman et al (Phys.
Rev. B 53, 1833 (1996)). The frequency dependence of the strain, at each
position and amplitude, was fit to a modified harmonic oscillator expression,
and the position and current dependence of the fitting parameters determined.
In particular, the delay time (1/resonant frequency) vanishes adjacent to the
contact and grows with distance from the contact, and both the delay time and
relaxation time decrease rapidly with increasing current (and phase-slip rate),
as experimentally observed in the electro-optic response of blue bronze. We
have also found that pinning the phase at the contacts causes more rapid
changes in strain between the contacts than allowing the phase to flow outside
the contacts.
| cond-mat.str-el | we have studied changes in chargedensitywave strain under application of squarewave currents of variable amplitude and frequency by numerically solving the phaseslip augmented diffusion model introduced by adelman et al phys rev b 53 1833 1996 the frequency dependence of the strain at each position and amplitude was fit to a modified harmonic oscillator expression and the position and current dependence of the fitting parameters determined in particular the delay time 1resonant frequency vanishes adjacent to the contact and grows with distance from the contact and both the delay time and relaxation time decrease rapidly with increasing current and phaseslip rate as experimentally observed in the electrooptic response of blue bronze we have also found that pinning the phase at the contacts causes more rapid changes in strain between the contacts than allowing the phase to flow outside the contacts | [['we', 'have', 'studied', 'changes', 'in', 'chargedensitywave', 'strain', 'under', 'application', 'of', 'squarewave', 'currents', 'of', 'variable', 'amplitude', 'and', 'frequency', 'by', 'numerically', 'solving', 'the', 'phaseslip', 'augmented', 'diffusion', 'model', 'introduced', 'by', 'adelman', 'et', 'al', 'phys', 'rev', 'b', '53', '1833', '1996', 'the', 'frequency', 'dependence', 'of', 'the', 'strain', 'at', 'each', 'position', 'and', 'amplitude', 'was', 'fit', 'to', 'a', 'modified', 'harmonic', 'oscillator', 'expression', 'and', 'the', 'position', 'and', 'current', 'dependence', 'of', 'the', 'fitting', 'parameters', 'determined', 'in', 'particular', 'the', 'delay', 'time', '1resonant', 'frequency', 'vanishes', 'adjacent', 'to', 'the', 'contact', 'and', 'grows', 'with', 'distance', 'from', 'the', 'contact', 'and', 'both', 'the', 'delay', 'time', 'and', 'relaxation', 'time', 'decrease', 'rapidly', 'with', 'increasing', 'current', 'and', 'phaseslip', 'rate', 'as', 'experimentally', 'observed', 'in', 'the', 'electrooptic', 'response', 'of', 'blue', 'bronze', 'we', 'have', 'also', 'found', 'that', 'pinning', 'the', 'phase', 'at', 'the', 'contacts', 'causes', 'more', 'rapid', 'changes', 'in', 'strain', 'between', 'the', 'contacts', 'than', 'allowing', 'the', 'phase', 'to', 'flow', 'outside', 'the', 'contacts']] | [-0.15056833493706237, 0.1790705462252455, -0.028081765371773926, -0.04182032731394949, -0.03842156172197844, -0.1399551169713959, 0.10927354151748919, 0.39359832190509353, -0.24116664434384022, -0.3135961783318115, 0.03384412689733186, -0.27563045591648133, -0.15772059598405447, 0.1961411044916271, -0.026969791210389563, 0.02903206519383405, -0.02311618033833968, -0.00685360266195078, -0.07714083239802026, -0.2084173081010314, 0.21149823102168738, 0.08374483687969457, 0.3166305719608707, 0.037344549502761636, 0.059468599681609446, 0.037282235364961835, -0.0007786202128045261, 0.036409882166688994, -0.16727275358805074, -0.0010324459214254083, 0.18579296854690516, -0.020716364638480755, 0.22448036473776614, -0.4237810590321065, -0.19425147586901273, 0.079921122523956, 0.10102489137789235, 0.11576589616098708, 0.00027803082515934614, -0.2767287497408688, 0.019784127287234048, -0.15154448980465532, -0.13402702002619793, -0.004242232089330043, 0.12402535117497401, 0.056162387867724255, -0.24991497504524887, 0.16566903067432576, 0.004999580018089286, 0.0725093236874922, -0.07004135403299837, -0.07953152288682759, -0.07246188730600157, 0.08635054603551648, 0.04694713928786639, 0.07732309280295989, 0.17064921311102807, -0.08238444239167231, -0.07486751824367925, 0.2979220621820007, -0.09094913641674793, -0.12352105879087633, 0.16046439640756163, -0.17769910508234585, -0.03774179501924664, 0.15530986793206206, 0.1482163812998416, 0.06979548312457544, -0.13482783606492116, 0.042990219197236, 0.08792291980103722, 0.1613625744062509, 0.15633834042985525, 0.003544732607302389, 0.1658036836472872, 0.160591466230939, 0.02540941477553653, 0.12420564299183233, -0.16486702043829218, -0.0799994974850311, -0.24813254861177744, -0.10089880171664325, -0.18427157483196685, 0.036573436837976, -0.08084354490357717, -0.13697441299445928, 0.4197161044326744, 0.1266603148708652, 0.22674701801900352, 0.03649551148825724, 0.249578840283045, 0.17926927346852609, 0.07172676451446022, 0.08371741669252515, 0.27537309607890037, 0.16377018321737913, 0.16264392056369356, -0.3038524637946726, 0.10127422624666776, -0.008584175749482321] |
712.1589 | HFAG Charm Mixing Averages | Recently the first evidence for charm mixing has been reported by several
experiments. To provide averages of these mixing results and other charm
results, a new subgroup of the Heavy Flavor Averaging Group has been formed. We
here report on the method and results of averaging the charm mixing results.
| hep-ex | recently the first evidence for charm mixing has been reported by several experiments to provide averages of these mixing results and other charm results a new subgroup of the heavy flavor averaging group has been formed we here report on the method and results of averaging the charm mixing results | [['recently', 'the', 'first', 'evidence', 'for', 'charm', 'mixing', 'has', 'been', 'reported', 'by', 'several', 'experiments', 'to', 'provide', 'averages', 'of', 'these', 'mixing', 'results', 'and', 'other', 'charm', 'results', 'a', 'new', 'subgroup', 'of', 'the', 'heavy', 'flavor', 'averaging', 'group', 'has', 'been', 'formed', 'we', 'here', 'report', 'on', 'the', 'method', 'and', 'results', 'of', 'averaging', 'the', 'charm', 'mixing', 'results']] | [-0.059838147480040786, 0.22020137367770076, -0.138856308683753, 0.03799662882462144, -0.04469680991023779, -0.06121650665067136, 0.09541640939190983, 0.4010122579336166, -0.20309671845287083, -0.28423715867102145, 0.10171828913502395, -0.3047096257656813, -0.05776638071984053, 0.22306684110313654, 0.030047155311331154, 0.14557822175323964, 0.12175549723207951, -0.0209676788788056, -0.09154132058843971, -0.26693915646523236, 0.31804368693381546, -0.005500913932919503, 0.24344246755354107, 0.18520147405564785, 0.06840663063339888, -0.09885144637897611, -0.11094546731561422, -0.028574086297303437, -0.11356787903234362, 0.09671771565452218, 0.10244836878031492, 0.09248681399505586, 0.21440740913152695, -0.3896398913860321, -0.22749445471912622, 0.08090930800884961, 0.18221173856407405, 0.14538699138909578, -0.1849768335116096, -0.3419424706324935, 0.11120240351185202, -0.196644901484251, -0.10072968860156833, -0.16988687921315432, -0.011979745198041201, -0.02967600989155471, -0.29085120648145674, 0.06970275063533336, 0.007176779275760055, 0.08669469812884927, 0.00822016691789031, -0.255692356787622, 0.013609560681506991, 0.11889510226435959, 0.14904706653207542, 0.006845950800925493, 0.0737648102734238, -0.07945519069209694, -0.22775945898145436, 0.386351805254817, -0.10506498202681541, -0.1537511023133993, 0.1847098233923316, -0.18222486200742424, -0.22285148745402694, 0.08285200502723455, 0.19108804846182464, 0.10485272550955414, -0.17597681526094675, 0.06396126915467903, -0.19181671656668187, 0.1181082688178867, 0.031854715305380525, 0.04901917736977339, 0.11097734177485108, 0.2401882771216333, 0.009417022168636323, 0.028094039858551696, -0.10866189272608608, -0.07005010794848204, -0.29085738308727743, -0.1367183906584978, -0.11465765758417547, 0.028790822811424734, -0.03625226224714424, -0.06810913506895304, 0.4300861389935017, 0.1160506996884942, 0.19155736193060874, -0.003871580008417368, 0.25534547187387946, 0.07326861336827278, 0.07874408541247249, 0.06475361743941903, 0.28996961876749994, 0.20641083512920885, 0.07500958877615631, -0.2384390353038907, 0.09028017331846058, 0.08170352485962212] |
712.159 | Constraining the Age-Activity Relation for Cool Stars: The SDSS DR5
Low-Mass Star Spectroscopic Sample | We present a spectroscopic analysis of over 38,000 low-mass stars from the
Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Analysis of this
unprecedentedly large sample confirms the previously detected decrease in the
fraction of magnetically active stars (as traced by H-alpha emission) as a
function of vertical distance from the Galactic Plane. The magnitude and slope
of this effect varies as a function of spectral type. Using simple 1-D
dynamical models, we demonstrate that the drop in activity fraction can be
explained by thin disk dynamical heating and a rapid decrease in magnetic
activity. The timescale for this rapid activity decrease changes according to
the spectral type. By comparing our data to the simulations, we calibrate the
age-activity relation at each M dwarf spectral type. We also present evidence
for a possible decrease in the metallicity as a function of height above the
Galactic Plane. In addition to our activity analysis, we provide line
measurements, molecular band indices, colors, radial velocities, 3-D space
motions and mean properties as a function of spectral type for the SDSS DR5
low-mass star sample.
| astro-ph | we present a spectroscopic analysis of over 38000 lowmass stars from the sloan digital sky survey sdss data release 5 dr5 analysis of this unprecedentedly large sample confirms the previously detected decrease in the fraction of magnetically active stars as traced by halpha emission as a function of vertical distance from the galactic plane the magnitude and slope of this effect varies as a function of spectral type using simple 1d dynamical models we demonstrate that the drop in activity fraction can be explained by thin disk dynamical heating and a rapid decrease in magnetic activity the timescale for this rapid activity decrease changes according to the spectral type by comparing our data to the simulations we calibrate the ageactivity relation at each m dwarf spectral type we also present evidence for a possible decrease in the metallicity as a function of height above the galactic plane in addition to our activity analysis we provide line measurements molecular band indices colors radial velocities 3d space motions and mean properties as a function of spectral type for the sdss dr5 lowmass star sample | [['we', 'present', 'a', 'spectroscopic', 'analysis', 'of', 'over', '38000', 'lowmass', 'stars', 'from', 'the', 'sloan', 'digital', 'sky', 'survey', 'sdss', 'data', 'release', '5', 'dr5', 'analysis', 'of', 'this', 'unprecedentedly', 'large', 'sample', 'confirms', 'the', 'previously', 'detected', 'decrease', 'in', 'the', 'fraction', 'of', 'magnetically', 'active', 'stars', 'as', 'traced', 'by', 'halpha', 'emission', 'as', 'a', 'function', 'of', 'vertical', 'distance', 'from', 'the', 'galactic', 'plane', 'the', 'magnitude', 'and', 'slope', 'of', 'this', 'effect', 'varies', 'as', 'a', 'function', 'of', 'spectral', 'type', 'using', 'simple', '1d', 'dynamical', 'models', 'we', 'demonstrate', 'that', 'the', 'drop', 'in', 'activity', 'fraction', 'can', 'be', 'explained', 'by', 'thin', 'disk', 'dynamical', 'heating', 'and', 'a', 'rapid', 'decrease', 'in', 'magnetic', 'activity', 'the', 'timescale', 'for', 'this', 'rapid', 'activity', 'decrease', 'changes', 'according', 'to', 'the', 'spectral', 'type', 'by', 'comparing', 'our', 'data', 'to', 'the', 'simulations', 'we', 'calibrate', 'the', 'ageactivity', 'relation', 'at', 'each', 'm', 'dwarf', 'spectral', 'type', 'we', 'also', 'present', 'evidence', 'for', 'a', 'possible', 'decrease', 'in', 'the', 'metallicity', 'as', 'a', 'function', 'of', 'height', 'above', 'the', 'galactic', 'plane', 'in', 'addition', 'to', 'our', 'activity', 'analysis', 'we', 'provide', 'line', 'measurements', 'molecular', 'band', 'indices', 'colors', 'radial', 'velocities', '3d', 'space', 'motions', 'and', 'mean', 'properties', 'as', 'a', 'function', 'of', 'spectral', 'type', 'for', 'the', 'sdss', 'dr5', 'lowmass', 'star', 'sample']] | [-0.052087511851933305, 0.08376567418799623, -0.05012596325672508, 0.07817171046390085, -0.10279172692949382, -0.002007305979022531, 0.10831237854538384, 0.4070462593092368, -0.20784272594060135, -0.3800309588825637, 0.06288631523097098, -0.3020819464933823, -0.07013457644331668, 0.22183731666498735, -0.0351633426277888, -0.04042999914100209, 0.04861943232366345, -0.09628112267323509, -0.06290358142155877, -0.21870333671692635, 0.289755576510228, 0.048395934857550886, 0.21202487630544456, -0.05410886132273475, 0.0279931247267606, -0.05307025114166458, -0.09470459537268462, 0.031035295752339914, -0.18386357583273952, 0.015897700969607294, 0.2209861214360989, 0.11409993729154978, 0.21639420394529843, -0.31320154374670994, -0.23171136723217237, 0.08135650522628246, 0.21687167958653236, 0.05409000586247542, -0.09007427518532335, -0.23468614078976296, 0.0771500087332922, -0.18185500614345074, -0.2005883604057829, 0.032966244721447456, 0.06875260499341843, 0.08687312070761326, -0.2218268669781577, 0.1521931871655717, 0.03744022798331731, 0.168400348614451, -0.12282435622086728, -0.07818342576949643, -0.08706152418648803, 0.10625118467186649, 0.004079166781873657, 0.09577248515663567, 0.1765238910806007, -0.09998600879443584, -0.03757028220282806, 0.35078735093862473, -0.1256281143274404, -0.01696923937025521, 0.17918085620564583, -0.19229972818840788, -0.15005804014975552, 0.15153994180766128, 0.1944351875796341, 0.11618922297090578, -0.14290382680961297, -0.008360178013790173, -0.024073967940409433, 0.23858148077564253, 0.008278953405301813, 0.042837338675591315, 0.27204147409033647, 0.13577417869141306, 0.03282222490767938, 0.13409535730178315, -0.25232715841771647, -0.0068419119499874516, -0.25914768771790375, -0.1123777941114955, -0.15846352572783132, 0.07324231171322945, -0.13567799660302046, -0.1427647268558228, 0.3868818383965805, 0.0939961732365191, 0.2570628031108344, 0.07067360604888054, 0.3058914954436349, 0.10324495331931777, 0.11851441492019528, 0.06428140645416883, 0.28697523821124826, 0.16573802539234428, 0.13332075820054032, -0.24853570841426786, 0.05326674302853132, 0.03337587586317498] |
712.1591 | The influence of residual gas expulsion on the evolution of the Galactic
globular cluster system and the origin of the Population II halo | We present new results on the evolution of the mass function of the globular
cluster system of the Milky Way, taking the effect of residual gas expulsion
into account. We assume that gas embedded star clusters start with a power-law
mass function with slope \beta=2. The dissolution of the clusters is then
studied under the combined influence of residual gas expulsion driven by energy
feedback from massive stars, stellar mass-loss, two-body relaxation and an
external tidal field. The influence of residual gas expulsion is studied by
applying results from a large grid of N-body simulations computed by Baumgardt
& Kroupa (2007).
In our model, star clusters with masses less than 10^5 M_sun lose their
residual gas on timescales much shorter than their crossing time and residual
gas expulsion is the main dissolution mechanism for star clusters, destroying
about 95% of all clusters within a few 10s of Myr. We find that in this case
the final mass function of globular clusters is established mainly by the gas
expulsion and therefore nearly independent of the strength of the external
tidal field, and that a power-law mass function for the gas embedded star
clusters is turned into a present-day log-normal one.
Another consequence of residual gas expulsion and the associated strong
infant mortality of star clusters is that the Galactic halo stars come from
dissolved star clusters. Since field halo stars would come mainly from
low-mass, short-lived clusters, our model provides an explanation for the
observed abundance variations of light elements among globular cluster stars
and the absence of such variations among the halo field stars.
| astro-ph | we present new results on the evolution of the mass function of the globular cluster system of the milky way taking the effect of residual gas expulsion into account we assume that gas embedded star clusters start with a powerlaw mass function with slope beta2 the dissolution of the clusters is then studied under the combined influence of residual gas expulsion driven by energy feedback from massive stars stellar massloss twobody relaxation and an external tidal field the influence of residual gas expulsion is studied by applying results from a large grid of nbody simulations computed by baumgardt kroupa 2007 in our model star clusters with masses less than 105 m_sun lose their residual gas on timescales much shorter than their crossing time and residual gas expulsion is the main dissolution mechanism for star clusters destroying about 95 of all clusters within a few 10s of myr we find that in this case the final mass function of globular clusters is established mainly by the gas expulsion and therefore nearly independent of the strength of the external tidal field and that a powerlaw mass function for the gas embedded star clusters is turned into a presentday lognormal one another consequence of residual gas expulsion and the associated strong infant mortality of star clusters is that the galactic halo stars come from dissolved star clusters since field halo stars would come mainly from lowmass shortlived clusters our model provides an explanation for the observed abundance variations of light elements among globular cluster stars and the absence of such variations among the halo field stars | [['we', 'present', 'new', 'results', 'on', 'the', 'evolution', 'of', 'the', 'mass', 'function', 'of', 'the', 'globular', 'cluster', 'system', 'of', 'the', 'milky', 'way', 'taking', 'the', 'effect', 'of', 'residual', 'gas', 'expulsion', 'into', 'account', 'we', 'assume', 'that', 'gas', 'embedded', 'star', 'clusters', 'start', 'with', 'a', 'powerlaw', 'mass', 'function', 'with', 'slope', 'beta2', 'the', 'dissolution', 'of', 'the', 'clusters', 'is', 'then', 'studied', 'under', 'the', 'combined', 'influence', 'of', 'residual', 'gas', 'expulsion', 'driven', 'by', 'energy', 'feedback', 'from', 'massive', 'stars', 'stellar', 'massloss', 'twobody', 'relaxation', 'and', 'an', 'external', 'tidal', 'field', 'the', 'influence', 'of', 'residual', 'gas', 'expulsion', 'is', 'studied', 'by', 'applying', 'results', 'from', 'a', 'large', 'grid', 'of', 'nbody', 'simulations', 'computed', 'by', 'baumgardt', 'kroupa', '2007', 'in', 'our', 'model', 'star', 'clusters', 'with', 'masses', 'less', 'than', '105', 'm_sun', 'lose', 'their', 'residual', 'gas', 'on', 'timescales', 'much', 'shorter', 'than', 'their', 'crossing', 'time', 'and', 'residual', 'gas', 'expulsion', 'is', 'the', 'main', 'dissolution', 'mechanism', 'for', 'star', 'clusters', 'destroying', 'about', '95', 'of', 'all', 'clusters', 'within', 'a', 'few', '10s', 'of', 'myr', 'we', 'find', 'that', 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712.1592 | Detection of Cherenkov light from air showers with Geiger-APDs | We have detected Cherenkov light from air showers with Geiger-mode APDs
(G-APDs). G-APDs are novel semiconductor photon-detectors, which offer several
advantages compared to conventional photomultiplier tubes in the field of
ground-based gamma-ray astronomy. In a field test with the MAGIC telescope we
have tested the efficiency of a G-APD / light catcher setup to detect Cherenkov
light from air showers. We estimate a detection efficiency, which is 60% higher
than the efficiency of a MAGIC camera pixel. Ambient temperature dark count
rates of the tested G-APDs are below the rates of the night sky light
background. According to these recent tests G-APDs promise a major progress in
ground-based gamma-ray astronomy.
| astro-ph | we have detected cherenkov light from air showers with geigermode apds gapds gapds are novel semiconductor photondetectors which offer several advantages compared to conventional photomultiplier tubes in the field of groundbased gammaray astronomy in a field test with the magic telescope we have tested the efficiency of a gapd light catcher setup to detect cherenkov light from air showers we estimate a detection efficiency which is 60 higher than the efficiency of a magic camera pixel ambient temperature dark count rates of the tested gapds are below the rates of the night sky light background according to these recent tests gapds promise a major progress in groundbased gammaray astronomy | [['we', 'have', 'detected', 'cherenkov', 'light', 'from', 'air', 'showers', 'with', 'geigermode', 'apds', 'gapds', 'gapds', 'are', 'novel', 'semiconductor', 'photondetectors', 'which', 'offer', 'several', 'advantages', 'compared', 'to', 'conventional', 'photomultiplier', 'tubes', 'in', 'the', 'field', 'of', 'groundbased', 'gammaray', 'astronomy', 'in', 'a', 'field', 'test', 'with', 'the', 'magic', 'telescope', 'we', 'have', 'tested', 'the', 'efficiency', 'of', 'a', 'gapd', 'light', 'catcher', 'setup', 'to', 'detect', 'cherenkov', 'light', 'from', 'air', 'showers', 'we', 'estimate', 'a', 'detection', 'efficiency', 'which', 'is', '60', 'higher', 'than', 'the', 'efficiency', 'of', 'a', 'magic', 'camera', 'pixel', 'ambient', 'temperature', 'dark', 'count', 'rates', 'of', 'the', 'tested', 'gapds', 'are', 'below', 'the', 'rates', 'of', 'the', 'night', 'sky', 'light', 'background', 'according', 'to', 'these', 'recent', 'tests', 'gapds', 'promise', 'a', 'major', 'progress', 'in', 'groundbased', 'gammaray', 'astronomy']] | [-0.05161497531339086, 0.20226117741333804, -0.07844205120259344, 0.053984106644444786, -0.049804999277478564, -0.13193972085826788, -0.008361534306055142, 0.4785738054111048, -0.10734221521178605, -0.41159653536009566, 0.12076397887883811, -0.3538670744229522, -0.0266320144146448, 0.3043511751866727, -0.0725216444072969, 0.08138207516943415, 0.13112596944146962, -0.08673332083142465, -0.0243221342270435, -0.23928945143362162, 0.14136178089581705, 0.1950828004800887, 0.34484959907691787, 0.046203593619995646, 0.15100747876136597, -0.06130540347658098, -0.0683939705852902, -0.06285874211156355, -0.03182473639457452, 0.07344567410095974, 0.2833445622861661, 0.1371046550791814, 0.14955512105047497, -0.4214806846101527, -0.24580295619347858, 0.12970093004750433, 0.06535065259905187, -0.023725910140287684, -0.11098037647833633, -0.3504376724681438, 0.04341353113866515, -0.1955798483988339, -0.16172417002531733, 0.06854650644904554, -0.09759060548471839, 0.0913325472286454, -0.1594541419590651, -0.063462881772365, -0.0748544371065994, 0.062007132307540076, -0.005870264243438012, -0.14851750415767095, 0.06822234126458945, 0.062099083512159134, 0.04636064936143898, 0.035074123271947935, 0.1804182031601495, -0.17813676746596616, -0.11526357442899435, 0.3341702635365504, -0.10335532679447271, -0.04126074154973375, 0.1612243834555287, -0.21174426779099223, -0.0916488478844123, 0.26393406270330566, 0.1985025541011796, 0.12195054918993264, -0.19077592344816635, -0.002365616650355083, 0.022861943787170783, 0.20829574910371942, 0.12053488463128882, 0.0767443784624683, 0.28269501680215064, 0.25407319151175517, 0.08186940420030926, 0.13399041381975016, -0.33230138002653364, 0.03516361118009728, -0.26359901587366713, -0.16799637367431489, -0.16107203822617452, 0.07212873950980052, -0.019575016745538625, -0.1016263068239722, 0.42440333910700345, 0.17178906439976008, 0.06449563395344066, 0.005033901248006495, 0.3693839258997253, 0.006856435737400143, 0.11153184096501381, -0.016829986508970184, 0.3741666918881324, 0.12267523007122455, 0.14361653719269843, -0.14930631685355264, -0.008842336323276093, -0.015082040066503126] |
712.1593 | Strong lensing optical depths in a LCDM universe II: the influence of
the stellar mass in galaxies | We investigate how strong gravitational lensing in the concordance LCDM
cosmology is affected by the stellar mass in galaxies. We extend our previous
studies, based on ray-tracing through the Millennium Simulation, by including
the stellar components predicted by galaxy formation models. We find that the
inclusion of these components greatly enhances the probability for strong
lensing compared to a `dark matter only' universe. The identification of the
`lenses' associated with strong-lensing events reveals that the stellar mass of
galaxies (i) significantly enhances the strong-lensing cross-sections of group
and cluster halos, and (ii) gives rise to strong lensing in smaller halos,
which would not produce noticeable effects in the absence of the stars. Even if
we consider only image splittings >10 arcsec, the luminous matter can enhance
the strong-lensing optical depths by up to a factor of 2.
| astro-ph | we investigate how strong gravitational lensing in the concordance lcdm cosmology is affected by the stellar mass in galaxies we extend our previous studies based on raytracing through the millennium simulation by including the stellar components predicted by galaxy formation models we find that the inclusion of these components greatly enhances the probability for strong lensing compared to a dark matter only universe the identification of the lenses associated with stronglensing events reveals that the stellar mass of galaxies i significantly enhances the stronglensing crosssections of group and cluster halos and ii gives rise to strong lensing in smaller halos which would not produce noticeable effects in the absence of the stars even if we consider only image splittings 10 arcsec the luminous matter can enhance the stronglensing optical depths by up to a factor of 2 | [['we', 'investigate', 'how', 'strong', 'gravitational', 'lensing', 'in', 'the', 'concordance', 'lcdm', 'cosmology', 'is', 'affected', 'by', 'the', 'stellar', 'mass', 'in', 'galaxies', 'we', 'extend', 'our', 'previous', 'studies', 'based', 'on', 'raytracing', 'through', 'the', 'millennium', 'simulation', 'by', 'including', 'the', 'stellar', 'components', 'predicted', 'by', 'galaxy', 'formation', 'models', 'we', 'find', 'that', 'the', 'inclusion', 'of', 'these', 'components', 'greatly', 'enhances', 'the', 'probability', 'for', 'strong', 'lensing', 'compared', 'to', 'a', 'dark', 'matter', 'only', 'universe', 'the', 'identification', 'of', 'the', 'lenses', 'associated', 'with', 'stronglensing', 'events', 'reveals', 'that', 'the', 'stellar', 'mass', 'of', 'galaxies', 'i', 'significantly', 'enhances', 'the', 'stronglensing', 'crosssections', 'of', 'group', 'and', 'cluster', 'halos', 'and', 'ii', 'gives', 'rise', 'to', 'strong', 'lensing', 'in', 'smaller', 'halos', 'which', 'would', 'not', 'produce', 'noticeable', 'effects', 'in', 'the', 'absence', 'of', 'the', 'stars', 'even', 'if', 'we', 'consider', 'only', 'image', 'splittings', '10', 'arcsec', 'the', 'luminous', 'matter', 'can', 'enhance', 'the', 'stronglensing', 'optical', 'depths', 'by', 'up', 'to', 'a', 'factor', 'of', '2']] | [-0.07930861544679768, 0.09129677035839018, -0.07162558379154789, 0.12096343445506653, -0.10619293988757107, -0.033874541347724024, -0.01663024446172436, 0.36817204576651874, -0.14451437136226328, -0.3663650893803387, -0.00528899763105777, -0.28708655430670205, -0.05522248834154032, 0.20388625236119234, -0.0039450055409739485, -0.03155423500949014, 0.0937265804220997, -0.06634644427792216, -0.06780366088861912, -0.31907216350150286, 0.35550439684230317, 0.0896244587879764, 0.18621741218261256, 0.013189149333884681, 0.08307593320938249, -0.04226773230182211, -0.13529485622828785, 0.030685344503607846, -0.1746696737433663, 0.03875647033870655, 0.1884409292769352, 0.12764929349527415, 0.20181766466278392, -0.372728490529847, -0.22670038293853376, 0.11257944294135935, 0.2080403437674807, 0.11100933254427908, -0.09619824063240204, -0.33185144214054746, 0.11417964060899605, -0.1994617015979912, -0.10856017953016027, 0.02569190321666916, -0.036801334249576295, 0.04209636524999446, -0.21798488697934434, 0.19280399423327133, 0.03416556765046651, 0.0003461639403644269, -0.052476382195732016, -0.06705885858744057, -0.05204593546749738, 0.04483380702997211, 0.04207436846531792, 0.03242330401320092, 0.20762503061810658, -0.21969236097686048, -0.03408708236431771, 0.4578082400788791, -0.10822071205573089, -0.05321953194827712, 0.19593732529591742, -0.2169084050242252, -0.16729308632848255, 0.10683884965357826, 0.16997839667134151, 0.05223660545940273, -0.10190356118319026, 0.050449800132909776, 7.598025955422951e-05, 0.25273260072614645, 0.03183282232659794, 0.013507647499425955, 0.32128065972322134, 0.0935328537122394, 0.08260032519633137, 0.07015840369990489, -0.18951161085147017, -0.016532363475429534, -0.229312193528987, -0.0787093302874017, -0.09970145964192866, 0.056582826548396185, -0.1654029211306003, -0.11740641750014612, 0.36603093118386437, 0.15396346823808593, 0.21011631983930557, 0.09274680102261014, 0.32248346420195306, 0.0645604119449174, 0.1426767309325455, 0.050510951681538435, 0.37476915263835964, 0.182708673352498, 0.014944156393048483, -0.257143904213678, 0.042497698250770516, -0.014095104885811028] |
712.1594 | Photometric Redshifts with Surface Brightness Priors | We use galaxy surface brightness as prior information to improve photometric
redshift (photo-z) estimation. We apply our template-based photo-z method to
imaging data from the ground-based VVDS survey and the space-based GOODS field
from HST, and use spectroscopic redshifts to test our photometric redshifts for
different galaxy types and redshifts. We find that the surface brightness prior
eliminates a large fraction of outliers by lifting the degeneracy between the
Lyman and 4000 Angstrom breaks. Bias and scatter are improved by about a factor
of 2 with the prior for both the ground and space data. Ongoing and planned
surveys from the ground and space will benefit, provided that care is taken in
measurements of galaxy sizes and in the application of the prior. We discuss
the image quality and signal-to-noise requirements that enable the surface
brightness prior to be successfully applied.
| astro-ph | we use galaxy surface brightness as prior information to improve photometric redshift photoz estimation we apply our templatebased photoz method to imaging data from the groundbased vvds survey and the spacebased goods field from hst and use spectroscopic redshifts to test our photometric redshifts for different galaxy types and redshifts we find that the surface brightness prior eliminates a large fraction of outliers by lifting the degeneracy between the lyman and 4000 angstrom breaks bias and scatter are improved by about a factor of 2 with the prior for both the ground and space data ongoing and planned surveys from the ground and space will benefit provided that care is taken in measurements of galaxy sizes and in the application of the prior we discuss the image quality and signaltonoise requirements that enable the surface brightness prior to be successfully applied | [['we', 'use', 'galaxy', 'surface', 'brightness', 'as', 'prior', 'information', 'to', 'improve', 'photometric', 'redshift', 'photoz', 'estimation', 'we', 'apply', 'our', 'templatebased', 'photoz', 'method', 'to', 'imaging', 'data', 'from', 'the', 'groundbased', 'vvds', 'survey', 'and', 'the', 'spacebased', 'goods', 'field', 'from', 'hst', 'and', 'use', 'spectroscopic', 'redshifts', 'to', 'test', 'our', 'photometric', 'redshifts', 'for', 'different', 'galaxy', 'types', 'and', 'redshifts', 'we', 'find', 'that', 'the', 'surface', 'brightness', 'prior', 'eliminates', 'a', 'large', 'fraction', 'of', 'outliers', 'by', 'lifting', 'the', 'degeneracy', 'between', 'the', 'lyman', 'and', '4000', 'angstrom', 'breaks', 'bias', 'and', 'scatter', 'are', 'improved', 'by', 'about', 'a', 'factor', 'of', '2', 'with', 'the', 'prior', 'for', 'both', 'the', 'ground', 'and', 'space', 'data', 'ongoing', 'and', 'planned', 'surveys', 'from', 'the', 'ground', 'and', 'space', 'will', 'benefit', 'provided', 'that', 'care', 'is', 'taken', 'in', 'measurements', 'of', 'galaxy', 'sizes', 'and', 'in', 'the', 'application', 'of', 'the', 'prior', 'we', 'discuss', 'the', 'image', 'quality', 'and', 'signaltonoise', 'requirements', 'that', 'enable', 'the', 'surface', 'brightness', 'prior', 'to', 'be', 'successfully', 'applied']] | [0.002866918498531301, 0.03017994919577151, -0.09591395295627997, 0.09477872043478151, -0.1345069387478503, -0.05444469265573731, 0.07333892309404116, 0.4635201737496024, -0.1726667640057016, -0.3844886629855432, 0.1029113033333965, -0.29980822698814225, -0.03863615378017491, 0.22284969253670292, -0.07036796763063745, 0.05333172006809965, 0.10604578399277748, -0.12489609001204371, -0.07434661812650564, -0.3496330385723858, 0.3180088770298406, 0.07592489839125266, 0.2681348981494282, -0.02786872824587932, 0.08538209782180159, 0.006252010207596823, -0.10960604355328697, -0.0012391272619373252, -0.17964551570334641, 0.05638632173352736, 0.2978946255612458, 0.2117865957709439, 0.2496049312035824, -0.33563339873382175, -0.2175917308909673, 0.07856598942282986, 0.14606893389545222, 0.11137361142203106, -0.043774645818489874, -0.3352983064606046, 0.03389795113962593, -0.1484170752702981, -0.10693595794868385, -0.032987633396389215, -0.041872546858656226, 0.044564332264799174, -0.25399801099395497, 0.12263112788002753, -0.024819378219280683, 0.1266161750552925, -0.10965785868003541, -0.11472249366937483, -0.06811477213846982, 0.16373693573466958, 0.008167372677963993, 0.10506716217261125, 0.12288896401961011, -0.1752447923381172, 0.00547088069778517, 0.365760840356667, -0.06716636016284584, -0.04537806253391483, 0.17623868855442984, -0.1674715691767897, -0.1710592136513574, 0.10983689321479133, 0.19441706456362884, 0.03384813038856848, -0.13601985301967737, 0.03316844756639041, 0.06744360043138847, 0.24272529315863942, 0.024030345706731505, 0.06372366438928169, 0.24716073732182436, 0.08698930392860837, 0.09511910935414704, 0.08550739973260862, -0.29848328934889945, 0.07596783477694113, -0.2382578756131813, -0.10908419815228974, -0.18367299836802672, 0.06582302485876684, -0.13672514901069613, -0.08262101251380981, 0.3816636686563386, 0.23792843425197277, 0.20592669717445705, 0.10725300041265151, 0.35817297851891383, 0.01123187285666321, 0.138574753973818, 0.019549891895925004, 0.2851600229726933, 0.08403202901340044, 0.04992528856114372, -0.18567212108780254, 0.022691641508185482, -0.031128967740632434] |
712.1595 | Evidence for Misaligned Disks in the T Tauri Triple System: 10 um
Super-Resolution with MMTAO and Markov Chains | Although T Tauri is one of the most studied young objects in astronomy, the
nature of its circumstellar environment remains elusive due, in part, to the
small angular separation of its three components (North-South and South a-b are
separated by 0.68" and 0.12" respectively). Taking advantage of incredibly
stable, high Strehl, PSFs obtained with Mid-IR adaptive optics at the 6.5 meter
MMT, we are able to resolve the system on and off the 10um silicate dust
feature (8.7um, 10.55um, and 11.86um; 10% bandwidth), and broad N. At these
wavelengths, South a-b are separated by only ~0.3 lambda/D. This paper
describes a robust Markov Chain Monte Carlo technique to separate all three
components astrometrically and photometrically, for the first time, in the
mid-IR. Our results show that the silicate feature previously observed in the
unresolved T Tau South binary is dominated by T Tau Sa's absorption, while Sb
does not appear to have a significant feature. This suggests that a large
circumbinary disk around Sa-Sb is not likely the primary source of cool dust in
our line-of-sight, and that T Tau Sa is enshrouded by a nearly edge-on
circumstellar disk. Surprisingly, T Tau Sb does not appear to have a similarly
oriented disk.
| astro-ph | although t tauri is one of the most studied young objects in astronomy the nature of its circumstellar environment remains elusive due in part to the small angular separation of its three components northsouth and south ab are separated by 068 and 012 respectively taking advantage of incredibly stable high strehl psfs obtained with midir adaptive optics at the 65 meter mmt we are able to resolve the system on and off the 10um silicate dust feature 87um 1055um and 1186um 10 bandwidth and broad n at these wavelengths south ab are separated by only 03 lambdad this paper describes a robust markov chain monte carlo technique to separate all three components astrometrically and photometrically for the first time in the midir our results show that the silicate feature previously observed in the unresolved t tau south binary is dominated by t tau sas absorption while sb does not appear to have a significant feature this suggests that a large circumbinary disk around sasb is not likely the primary source of cool dust in our lineofsight and that t tau sa is enshrouded by a nearly edgeon circumstellar disk surprisingly t tau sb does not appear to have a similarly oriented disk | [['although', 't', 'tauri', 'is', 'one', 'of', 'the', 'most', 'studied', 'young', 'objects', 'in', 'astronomy', 'the', 'nature', 'of', 'its', 'circumstellar', 'environment', 'remains', 'elusive', 'due', 'in', 'part', 'to', 'the', 'small', 'angular', 'separation', 'of', 'its', 'three', 'components', 'northsouth', 'and', 'south', 'ab', 'are', 'separated', 'by', '068', 'and', '012', 'respectively', 'taking', 'advantage', 'of', 'incredibly', 'stable', 'high', 'strehl', 'psfs', 'obtained', 'with', 'midir', 'adaptive', 'optics', 'at', 'the', '65', 'meter', 'mmt', 'we', 'are', 'able', 'to', 'resolve', 'the', 'system', 'on', 'and', 'off', 'the', '10um', 'silicate', 'dust', 'feature', '87um', '1055um', 'and', '1186um', '10', 'bandwidth', 'and', 'broad', 'n', 'at', 'these', 'wavelengths', 'south', 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712.1596 | Kaluza-Klein masses in nonprime orbifolds: Z(12-I) compactification and
threshold correction | Analyzing the one-loop partition function, we discuss possible Kaluza-Klein
(KK) states in the orbifold compactification of the heterotic string theory,
toward the application to the threshold correction. The KK massive states
associated with (relatively) large extra dimensions can arise only in non-prime
orbifolds. The GSO projection condition by a shift vector $V^I$ is somewhat
relaxed above the compactification scale 1/R. We also present the other
condition on Wilson line $W$, $P\cdot W={\rm integer}$. With the knowledge of
the partition function, we obtain the threshold corrections to gauge couplings,
which include the Wilson line effects. We point out the differences in string
and field theoretic orbifolds.
| hep-th hep-ph | analyzing the oneloop partition function we discuss possible kaluzaklein kk states in the orbifold compactification of the heterotic string theory toward the application to the threshold correction the kk massive states associated with relatively large extra dimensions can arise only in nonprime orbifolds the gso projection condition by a shift vector vi is somewhat relaxed above the compactification scale 1r we also present the other condition on wilson line w pcdot wrm integer with the knowledge of the partition function we obtain the threshold corrections to gauge couplings which include the wilson line effects we point out the differences in string and field theoretic orbifolds | [['analyzing', 'the', 'oneloop', 'partition', 'function', 'we', 'discuss', 'possible', 'kaluzaklein', 'kk', 'states', 'in', 'the', 'orbifold', 'compactification', 'of', 'the', 'heterotic', 'string', 'theory', 'toward', 'the', 'application', 'to', 'the', 'threshold', 'correction', 'the', 'kk', 'massive', 'states', 'associated', 'with', 'relatively', 'large', 'extra', 'dimensions', 'can', 'arise', 'only', 'in', 'nonprime', 'orbifolds', 'the', 'gso', 'projection', 'condition', 'by', 'a', 'shift', 'vector', 'vi', 'is', 'somewhat', 'relaxed', 'above', 'the', 'compactification', 'scale', '1r', 'we', 'also', 'present', 'the', 'other', 'condition', 'on', 'wilson', 'line', 'w', 'pcdot', 'wrm', 'integer', 'with', 'the', 'knowledge', 'of', 'the', 'partition', 'function', 'we', 'obtain', 'the', 'threshold', 'corrections', 'to', 'gauge', 'couplings', 'which', 'include', 'the', 'wilson', 'line', 'effects', 'we', 'point', 'out', 'the', 'differences', 'in', 'string', 'and', 'field', 'theoretic', 'orbifolds']] | [-0.1666033813907277, 0.1810505106557338, -0.06132885576891048, 0.17388385330282508, -0.09469744662443796, -0.16871703220753087, 0.07200894474739297, 0.3115651878927435, -0.20968127348238513, -0.2640282179495054, 0.07221056125459395, -0.27211375845862285, -0.09861277023419028, 0.08902046199710596, -0.03899737397829692, 0.026345326164959087, -0.004874066506246371, 0.05111533116460556, -0.10153306524014277, -0.2630193423923282, 0.3918988434553501, 0.011928405541749228, 0.24172794945271953, 0.109457094976235, 0.0442535910123427, -0.019186200944352007, -0.0325061033967705, -0.011870358048361682, -0.1379798198695339, 0.08045671327993097, 0.21563248552736783, 0.06218862116248125, 0.1046885608030217, -0.3694420111853452, -0.18057421358036144, 0.1089416329970672, 0.17667900672448533, 0.12343193221105529, 0.011276246592890294, -0.26916075588337013, 0.07349085135252348, -0.145513817935162, -0.16436658742549343, -0.05419698587973558, 0.0008992083204377975, -0.09619457640108608, -0.25305721020059924, 0.011711440436885736, -0.004080330141420875, 0.05993123446297388, -0.009352784306697903, -0.16335452396333927, -0.05182476934666435, 0.051184395722867475, 0.11013704395320799, 0.07718817237764597, 0.15048667302887356, -0.17959048828287494, -0.12332471432164312, 0.3521764071924346, -0.10488111782109454, -0.23021570133666197, 0.10544246071727857, -0.15482906663701648, -0.18476453279810293, 0.13842138653174818, 0.09727211245557382, 0.1398519374274959, -0.034914387387800075, 0.2325801421749583, -0.046260307955422575, 0.12999659328460916, 0.11515773891338281, 0.037386019492433184, 0.2050525671425497, 0.04484398370342595, 0.06360191901081375, 0.15440045600102859, -0.07685116433948722, -0.1159887278191967, -0.4538870592379854, -0.10955216376377004, -0.092083663131953, 0.1401141083511036, -0.1521796012251538, -0.1776823688109982, 0.339451229714212, 0.0943338005138295, 0.2186608355137564, 0.08176236661882805, 0.21052402236188453, 0.1477065397426486, 0.11690270746392863, 0.028634419957441943, 0.20099926399333137, 0.15815508437254244, 0.059157279147101303, -0.245207934604869, -0.12343984662244717, 0.19977094236583937] |
712.1597 | Quivers and the Euclidean group | We show that the category of representations of the Euclidean group of
orientation-preserving isometries of two-dimensional Euclidean space is
equivalent to the category of representations of the preprojective algebra of
infinite type A. We also consider the moduli space of representations of the
Euclidean group along with a set of generators. We show that these moduli
spaces are quiver varieties of the type considered by Nakajima. Using these
identifications, we prove various results about the representation theory of
the Euclidean group. In particular, we prove it is of wild representation type
but that if we impose certain restrictions on weight decompositions, we obtain
only a finite number of indecomposable representations.
| math.RT math.RA | we show that the category of representations of the euclidean group of orientationpreserving isometries of twodimensional euclidean space is equivalent to the category of representations of the preprojective algebra of infinite type a we also consider the moduli space of representations of the euclidean group along with a set of generators we show that these moduli spaces are quiver varieties of the type considered by nakajima using these identifications we prove various results about the representation theory of the euclidean group in particular we prove it is of wild representation type but that if we impose certain restrictions on weight decompositions we obtain only a finite number of indecomposable representations | [['we', 'show', 'that', 'the', 'category', 'of', 'representations', 'of', 'the', 'euclidean', 'group', 'of', 'orientationpreserving', 'isometries', 'of', 'twodimensional', 'euclidean', 'space', 'is', 'equivalent', 'to', 'the', 'category', 'of', 'representations', 'of', 'the', 'preprojective', 'algebra', 'of', 'infinite', 'type', 'a', 'we', 'also', 'consider', 'the', 'moduli', 'space', 'of', 'representations', 'of', 'the', 'euclidean', 'group', 'along', 'with', 'a', 'set', 'of', 'generators', 'we', 'show', 'that', 'these', 'moduli', 'spaces', 'are', 'quiver', 'varieties', 'of', 'the', 'type', 'considered', 'by', 'nakajima', 'using', 'these', 'identifications', 'we', 'prove', 'various', 'results', 'about', 'the', 'representation', 'theory', 'of', 'the', 'euclidean', 'group', 'in', 'particular', 'we', 'prove', 'it', 'is', 'of', 'wild', 'representation', 'type', 'but', 'that', 'if', 'we', 'impose', 'certain', 'restrictions', 'on', 'weight', 'decompositions', 'we', 'obtain', 'only', 'a', 'finite', 'number', 'of', 'indecomposable', 'representations']] | [-0.1525680247800086, 0.09684265887110748, -0.09180417904757301, 0.062202661926858124, -0.12241171716966412, -0.06350165394304151, -0.0005304339394735342, 0.4059179086407477, -0.34849107448350297, -0.20276442399163816, 0.13329892541938038, -0.23873204434798523, -0.19091298419146122, 0.16755020701411097, -0.16148455293679778, -0.04881799448789521, 0.08098819212649357, 0.12638067377900536, -0.14096948032648388, -0.3262473518558016, 0.4660494616466828, -0.09878353010228073, 0.2680322164076973, -0.008322280167009343, 0.15803196271034806, 0.03753340838646347, -0.04235822095281699, 0.003971679415024648, -0.13280394924903785, 0.1951312407449057, 0.2729147761954333, 0.08729473537426781, 0.17201996157898314, -0.37523265296423974, -0.17106554917991162, 0.2288077498362823, 0.15273973845495759, 0.06618887807496569, -0.014985303471753881, -0.2838158952749588, 0.1052945956820622, -0.17801994896409187, -0.12858458312905646, -0.08226146035489033, 0.046329311501573434, 0.015225344972515648, -0.2009368601763113, -0.024445361231548966, 0.06137660001827912, 0.10877439573576504, -0.16283658460332928, -0.09716824140738357, -0.07502747341376645, 0.09599987498315221, -0.003696674659890546, 0.012336002611978487, 0.06647208274596117, -0.1294304029084742, -0.12055426822467284, 0.38108812861821867, -0.023989270322702146, -0.2736145982532021, 0.15441427121827886, -0.18448013754307546, -0.1785336994354359, 0.07925227565098215, 0.11115358431654221, 0.13903535665436226, -0.0003742415500296788, 0.20346813161264765, -0.1739400401161137, 0.06491575724212453, 0.07921228593808007, 0.051014687049477786, 0.09507914936508645, 0.10986156149301678, 0.05048499285158786, 0.15848913030402564, -0.008607339450496842, -0.011541444521968846, -0.39454359671270306, -0.20115121765570207, -0.11162757995030419, 0.1121865081262182, -0.15398985326120798, -0.1872687271753834, 0.37982960831881923, 0.11198927313936027, 0.19663353695280172, 0.15664198312813163, 0.15318021566014398, 0.04797707548780388, 0.0881429920735007, 0.06438254267400638, 0.13942719979889012, 0.18016131038735198, -0.08722476786087183, -0.13334734454454686, -0.060235060011407104, 0.248452936637808] |
712.1598 | The Price of Anarchy in Transportation Networks: Efficiency and
Optimality Control | Uncoordinated individuals in human society pursuing their personally optimal
strategies do not always achieve the social optimum, the most beneficial state
to the society as a whole. Instead, strategies form Nash equilibria which are
often socially suboptimal. Society, therefore, has to pay a price of anarchy
for the lack of coordination among its members. Here we assess this price of
anarchy by analyzing the travel times in road networks of several major cities.
Our simulation shows that uncoordinated drivers possibly waste a considerable
amount of their travel time. Counterintuitively,simply blocking certain streets
can partially improve the traffic conditions. We analyze various complex
networks and discuss the possibility of similar paradoxes in physics.
| physics.soc-ph cond-mat.stat-mech | uncoordinated individuals in human society pursuing their personally optimal strategies do not always achieve the social optimum the most beneficial state to the society as a whole instead strategies form nash equilibria which are often socially suboptimal society therefore has to pay a price of anarchy for the lack of coordination among its members here we assess this price of anarchy by analyzing the travel times in road networks of several major cities our simulation shows that uncoordinated drivers possibly waste a considerable amount of their travel time counterintuitivelysimply blocking certain streets can partially improve the traffic conditions we analyze various complex networks and discuss the possibility of similar paradoxes in physics | [['uncoordinated', 'individuals', 'in', 'human', 'society', 'pursuing', 'their', 'personally', 'optimal', 'strategies', 'do', 'not', 'always', 'achieve', 'the', 'social', 'optimum', 'the', 'most', 'beneficial', 'state', 'to', 'the', 'society', 'as', 'a', 'whole', 'instead', 'strategies', 'form', 'nash', 'equilibria', 'which', 'are', 'often', 'socially', 'suboptimal', 'society', 'therefore', 'has', 'to', 'pay', 'a', 'price', 'of', 'anarchy', 'for', 'the', 'lack', 'of', 'coordination', 'among', 'its', 'members', 'here', 'we', 'assess', 'this', 'price', 'of', 'anarchy', 'by', 'analyzing', 'the', 'travel', 'times', 'in', 'road', 'networks', 'of', 'several', 'major', 'cities', 'our', 'simulation', 'shows', 'that', 'uncoordinated', 'drivers', 'possibly', 'waste', 'a', 'considerable', 'amount', 'of', 'their', 'travel', 'time', 'counterintuitivelysimply', 'blocking', 'certain', 'streets', 'can', 'partially', 'improve', 'the', 'traffic', 'conditions', 'we', 'analyze', 'various', 'complex', 'networks', 'and', 'discuss', 'the', 'possibility', 'of', 'similar', 'paradoxes', 'in', 'physics']] | [-0.15577299404587294, 0.07557783706893993, -0.07223468378966523, 0.12564591183599824, -0.08322518910197457, -0.13613176894550388, 0.18130583550072032, 0.41047726739365775, -0.2669824610457982, -0.2963531125034835, 0.1038100944238354, -0.2706801704642875, -0.17847311992600962, 0.12206464002500414, -0.18175085070584943, 0.02310924845598722, 0.08676254943743147, -0.0024373469211429626, 0.06446618916726932, -0.31957042028473037, 0.26927726013535586, 0.08070207437131184, 0.3424890566982228, 0.06885950101187101, 0.043417143450865336, -0.0671925857990376, -0.03138898132654192, 0.00856613626216983, -0.08446526736250988, 0.12552485409243083, 0.37320839068306993, 0.21077354592145295, 0.41315601860080753, -0.48078733414143054, -0.218927352957696, 0.19523724697966566, 0.11606691255200621, 0.09518209763756441, 0.007323980680666864, -0.29659051260164193, 0.05641039471804827, -0.20489517616124842, -0.11962979597769477, -0.059981099963355974, 0.005149553404063792, 0.04138393696976473, -0.2111971632636211, 0.015301237463047056, 0.0024680361290135094, 0.08121381197093255, -0.019503511688755908, -0.12763832346326462, -0.04088290317114107, 0.23066856741049402, 0.11009212527927514, -0.09666031535698084, 0.15810413594223424, -0.18554529714867943, -0.17374918216772312, 0.44611170189874666, 0.030674177030025906, -0.16679578964799843, 0.19497891525561745, -0.12007691865149248, -0.1144545652330979, 0.10356963582143926, 0.2438533019551353, 0.08025440259475831, -0.19384299212781428, -0.013638666365820042, -0.07236397116201686, 0.14017823728657253, 0.08778179433146441, 0.060481278078949395, 0.17737962061493145, 0.19001860968634351, 0.1959262535936694, 0.05392290888404524, 0.019447173944229748, -0.18424498380858217, -0.20346540646409397, -0.12947289117083355, -0.11458150954573071, 0.06513814035992385, -0.11611183168068172, -0.11512202995636307, 0.37129755515231844, 0.16138203702615322, 0.1116379120529772, 0.07012957770394178, 0.2700440187242117, 0.023109627963119262, 0.03127006166992155, 0.12451764180215898, 0.21454977950181914, -0.04038978471873781, 0.19434985455528303, -0.21402273350395262, 0.19706422134369678, -0.02950724548039337] |
712.1599 | Testing Gravity with the CFHTLS-Wide Cosmic Shear Survey and SDSS LRGs | General relativity as one the pillar of modern cosmology has to be thoroughly
tested if we want to achieve an accurate cosmology. We present the results from
such a test on cosmological scales using cosmic shear and galaxy clustering
measurements. We parametrize potential deviation from general relativity as a
modification to the cosmological Poisson equation. We consider two models
relevant either for some linearized theory of massive gravity or for the
physics of extra-dimensions. We use the latest observations from the
CFHTLS-Wide survey and the SDSS survey to set our constraints. We do not find
any deviation from general relativity on scales between 0.04 and 10 Mpc. We
derive constraints on the graviton mass in a restricted class of model.
| astro-ph | general relativity as one the pillar of modern cosmology has to be thoroughly tested if we want to achieve an accurate cosmology we present the results from such a test on cosmological scales using cosmic shear and galaxy clustering measurements we parametrize potential deviation from general relativity as a modification to the cosmological poisson equation we consider two models relevant either for some linearized theory of massive gravity or for the physics of extradimensions we use the latest observations from the cfhtlswide survey and the sdss survey to set our constraints we do not find any deviation from general relativity on scales between 004 and 10 mpc we derive constraints on the graviton mass in a restricted class of model | [['general', 'relativity', 'as', 'one', 'the', 'pillar', 'of', 'modern', 'cosmology', 'has', 'to', 'be', 'thoroughly', 'tested', 'if', 'we', 'want', 'to', 'achieve', 'an', 'accurate', 'cosmology', 'we', 'present', 'the', 'results', 'from', 'such', 'a', 'test', 'on', 'cosmological', 'scales', 'using', 'cosmic', 'shear', 'and', 'galaxy', 'clustering', 'measurements', 'we', 'parametrize', 'potential', 'deviation', 'from', 'general', 'relativity', 'as', 'a', 'modification', 'to', 'the', 'cosmological', 'poisson', 'equation', 'we', 'consider', 'two', 'models', 'relevant', 'either', 'for', 'some', 'linearized', 'theory', 'of', 'massive', 'gravity', 'or', 'for', 'the', 'physics', 'of', 'extradimensions', 'we', 'use', 'the', 'latest', 'observations', 'from', 'the', 'cfhtlswide', 'survey', 'and', 'the', 'sdss', 'survey', 'to', 'set', 'our', 'constraints', 'we', 'do', 'not', 'find', 'any', 'deviation', 'from', 'general', 'relativity', 'on', 'scales', 'between', '004', 'and', '10', 'mpc', 'we', 'derive', 'constraints', 'on', 'the', 'graviton', 'mass', 'in', 'a', 'restricted', 'class', 'of', 'model']] | [-0.06876747966744005, 0.04105375200463944, -0.11165257657412439, 0.1275197395433982, -0.14169432062966128, -0.11565577894992506, -0.008510722657471584, 0.31051287626614793, -0.23753629892792863, -0.33593472065404056, 0.09213175027107354, -0.28935897822181383, -0.08510132460893753, 0.22091192875426108, -0.021417060800498197, 0.017289974157271595, 0.04594785625134439, 0.0036935352875540656, -0.07740684437643115, -0.25593713606746554, 0.3465924673752549, 0.07571953920802722, 0.1974295132327825, -0.011345668804521362, 0.11114666000430588, -0.035525913008799155, -0.06351645299000666, 0.06423536144623844, -0.21330230018744867, 0.06956833598475592, 0.19178516827078057, 0.17325586749163147, 0.2325423749939849, -0.41156594436615707, -0.21791468932351563, 0.10817437360916908, 0.10916175749152898, 0.18597960939320426, -0.05763373548300781, -0.26314988126202177, 0.06289281236822716, -0.18734856358884525, -0.12359655886345232, -0.022408380502990138, -0.03710734775910775, -0.021196047115760546, -0.23944792838204496, 0.13198542579387626, -0.04202309837564826, 0.022547135983283322, -0.08075192943991473, -0.10494383697126371, 0.02461740522024532, 0.07884422860224731, 0.05645108621489878, 0.03826693615022426, 0.13270359009426708, -0.1352363000313441, -0.08426284424883003, 0.4743365641372899, -0.12215956207752848, -0.18506908672861755, 0.17288790431775852, -0.18997851501917468, -0.2239100727485493, 0.0001569810420429955, 0.21991153282190984, 0.11205497187329456, -0.155225059731553, 0.1282366746827999, -0.013322421124515434, 0.18664581254900744, 0.04664234408022215, 0.01946150381663756, 0.28667490148848934, 0.14034579097060487, 0.04892889786084804, 0.047144899922811116, -0.1394174233796851, -0.0659870825096732, -0.35988626164131954, -0.07707579166635696, -0.15284034672658892, 0.10522586878129611, -0.13781212446786714, -0.13316639873664826, 0.34270950203451017, 0.18925665657346447, 0.15655302227921009, 0.13319024122320117, 0.2754381491957853, 0.03166273316710431, 0.06628897517997151, 0.06283328758242229, 0.33487481094319566, 0.13351789572431397, 0.0807313542754855, -0.1686775913539653, -0.035693635853628315, 0.01933519650095453] |
712.16 | Causal spin foams and the ontology of spacetime | We present some modern theories on the structure of spacetime that can be
classified as relational theories in the direction of Leibniz's ontology. In
order to analyze the nature of spacetime we consider three levels of knowledge
-observational, theoretical and ontological- to which the different models can
be adscribed. Following similar approach to these models mentioned at the first
sections, we present our theoretical model of the structure of spacetime, some
physical applications, and the ontological interpretation of the model.
| gr-qc | we present some modern theories on the structure of spacetime that can be classified as relational theories in the direction of leibnizs ontology in order to analyze the nature of spacetime we consider three levels of knowledge observational theoretical and ontological to which the different models can be adscribed following similar approach to these models mentioned at the first sections we present our theoretical model of the structure of spacetime some physical applications and the ontological interpretation of the model | [['we', 'present', 'some', 'modern', 'theories', 'on', 'the', 'structure', 'of', 'spacetime', 'that', 'can', 'be', 'classified', 'as', 'relational', 'theories', 'in', 'the', 'direction', 'of', 'leibnizs', 'ontology', 'in', 'order', 'to', 'analyze', 'the', 'nature', 'of', 'spacetime', 'we', 'consider', 'three', 'levels', 'of', 'knowledge', 'observational', 'theoretical', 'and', 'ontological', 'to', 'which', 'the', 'different', 'models', 'can', 'be', 'adscribed', 'following', 'similar', 'approach', 'to', 'these', 'models', 'mentioned', 'at', 'the', 'first', 'sections', 'we', 'present', 'our', 'theoretical', 'model', 'of', 'the', 'structure', 'of', 'spacetime', 'some', 'physical', 'applications', 'and', 'the', 'ontological', 'interpretation', 'of', 'the', 'model']] | [-0.08586886133468133, 0.05054668713172403, -0.10218705370715714, 0.10779355852452072, -0.09256995494088417, -0.08509041704944795, 0.010384013988313418, 0.3584064057073261, -0.2581651214793136, -0.3457607168091249, 0.07575390211165045, -0.2312726255571116, -0.1556437501471631, 0.13641088917450625, -0.064106597730159, 0.035415657595554484, -0.006489070863286151, 0.05016560425769679, -0.06276958339399646, -0.24165632179348812, 0.37864300776037235, 0.04004283494587186, 0.2626052714620505, 0.039294188243891054, 0.06187271792257405, -0.0613176949510846, -0.029579773798726405, 0.050165899740414154, -0.1198083287421975, 0.18336077374582993, 0.25335223572389476, 0.20860033794129385, 0.2166798183682693, -0.46268459310448623, -0.2612603249594192, 0.04854694648964118, 0.12342908442804378, 0.14343511068433099, 0.010821873232238937, -0.32459157396438, 0.08852951052079944, -0.16998519038757945, -0.09939303420059666, -0.10358424442289751, -0.026049826798158923, -0.025066092480681364, -0.16364780037304316, 0.051047902949201536, 0.09518601844393754, 0.039681932841769504, -0.13386630583436618, -0.1313470162379797, 0.012987065308762692, 0.12337372232747229, 0.07018484638361379, -0.021351117664311504, 0.0666595972319947, -0.12853144635033759, -0.1952940975846369, 0.41777733515335036, -0.02325497901279338, -0.20461869280478812, 0.2083477104035548, -0.1472263698572222, -0.1883784421790344, 0.004190941189439331, 0.19906851446220675, 0.10716433693430846, -0.14565169751862228, 0.09286512360065186, -0.03320750462103494, 0.15828042674243828, 0.028659180066064945, 0.05260472236012545, 0.23932313832419017, 0.16875253525810152, -0.06320999211431304, 0.0874585572459228, -0.03651678941177228, -0.12947916317601466, -0.3940093486416566, -0.16973054932453965, -0.09988151463573869, 0.05033030182630106, -0.11710694487629564, -0.145469798588583, 0.40690995620775827, 0.2649751423469073, 0.18424986953599543, 0.004756277852951065, 0.28162069052835054, 0.08874215778034134, 0.03348008823828607, 0.02648872456548712, 0.2310530036088091, 0.09398475079502486, 0.09362399379451629, -0.14096557264086568, 0.05425032617854355, 0.06941230514947372] |
712.1601 | Evidence for Early Circumstellar Disk Evolution in NGC 2068/71 | We study the disk and accretion properties of young stars in the NGC 2068 and
NGC 2071 clusters. Using low-resolution optical spectra, we define a membership
sample and determine an age for the region of ~2 Myr. Using high-resolution
spectra of the H-alpha line we study the accretion activity of these likely
members and also examine the disk properties of the likely members using IRAC
and MIPS mid-infrared photometry. A substantial fraction (79%) of the 67
members have an infrared excess while all of the stars with significant
infrared excess show evidence for active accretion. We find three populations
of evolved disks (IRAC-weak, MIPS-weak and transition disks) all of which show
decreased accretion activity in addition to the evidence for evolution in the
dust disk.
| astro-ph | we study the disk and accretion properties of young stars in the ngc 2068 and ngc 2071 clusters using lowresolution optical spectra we define a membership sample and determine an age for the region of 2 myr using highresolution spectra of the halpha line we study the accretion activity of these likely members and also examine the disk properties of the likely members using irac and mips midinfrared photometry a substantial fraction 79 of the 67 members have an infrared excess while all of the stars with significant infrared excess show evidence for active accretion we find three populations of evolved disks iracweak mipsweak and transition disks all of which show decreased accretion activity in addition to the evidence for evolution in the dust disk | [['we', 'study', 'the', 'disk', 'and', 'accretion', 'properties', 'of', 'young', 'stars', 'in', 'the', 'ngc', '2068', 'and', 'ngc', '2071', 'clusters', 'using', 'lowresolution', 'optical', 'spectra', 'we', 'define', 'a', 'membership', 'sample', 'and', 'determine', 'an', 'age', 'for', 'the', 'region', 'of', '2', 'myr', 'using', 'highresolution', 'spectra', 'of', 'the', 'halpha', 'line', 'we', 'study', 'the', 'accretion', 'activity', 'of', 'these', 'likely', 'members', 'and', 'also', 'examine', 'the', 'disk', 'properties', 'of', 'the', 'likely', 'members', 'using', 'irac', 'and', 'mips', 'midinfrared', 'photometry', 'a', 'substantial', 'fraction', '79', 'of', 'the', '67', 'members', 'have', 'an', 'infrared', 'excess', 'while', 'all', 'of', 'the', 'stars', 'with', 'significant', 'infrared', 'excess', 'show', 'evidence', 'for', 'active', 'accretion', 'we', 'find', 'three', 'populations', 'of', 'evolved', 'disks', 'iracweak', 'mipsweak', 'and', 'transition', 'disks', 'all', 'of', 'which', 'show', 'decreased', 'accretion', 'activity', 'in', 'addition', 'to', 'the', 'evidence', 'for', 'evolution', 'in', 'the', 'dust', 'disk']] | [-0.03390558497654653, 0.06341942563123917, -0.07283683648196662, 0.07306503777475498, -0.05487270652963894, -0.0036216381089231833, 0.08169613303086622, 0.47194765510825, -0.15863181624894704, -0.35934630025753644, 0.07436121258472009, -0.29881031730977015, -0.052996152633331656, 0.16003912260256162, -0.049678457335131695, -0.04956690323486076, 0.0820539621901282, -0.11817644477435728, -0.013791672908133122, -0.2632784697613338, 0.3018108215258737, 0.028095256540984884, 0.0994748334453358, -0.05246181517263981, 0.02711029374608543, -0.11429610609538793, -0.11821612421180902, -0.04349936488864383, -0.21112835000276686, 0.06483318610732042, 0.21237941879241506, 0.11751934984979046, 0.2282589625896568, -0.31373564549881494, -0.20817781272306432, 0.05552477498417645, 0.22201832756400108, -0.019846616529602165, -0.08610144391375768, -0.2324280946447355, 0.08887903483932823, -0.20933610398504066, -0.16939448277140415, 0.06916516056715898, 0.09191324263508242, 0.014925080581995985, -0.2264480178994013, 0.11250079113481816, 0.027548008621102425, 0.1793050359919425, -0.21104407403618097, -0.10627985950105073, -0.08021527359534691, 0.11526418737007108, 0.00037501752944436016, 0.025335554839906897, 0.1850481239881942, -0.17867031638942113, -0.05197123310157681, 0.3665267949302991, -0.1060625983598998, 0.06531239184361648, 0.26989663666401936, -0.24696482331264855, -0.19009104181020484, 0.15895213326060675, 0.15633674019690208, 0.1498895103198938, -0.1777835434938713, -0.014376258633735522, -0.072023890935248, 0.2310402951226002, 0.024488463816119403, 0.10593106421997876, 0.33720384454884667, 0.06851993832828068, -0.00582081735573285, 0.1553149608993615, -0.29124413583639674, -0.04663968734382614, -0.21140650710151568, -0.15671662831815278, -0.0786060447183748, 0.07495326226637737, -0.14295443552815945, -0.1180190585969618, 0.322104680351913, 0.06961208329975181, 0.23479382848230804, 0.03284141883288124, 0.2572894471118272, 0.06396176959520464, 0.12675569189061237, 0.1952137161818583, 0.32376234011906313, 0.15632804707298434, 0.054584622861083024, -0.2932591372585053, 0.04903924947119946, -0.03518370445817709] |
712.1602 | Asymmetry with respect to the magnetic field direction in the
interaction between the quantum states of two coupled superconducting rings | The interaction between the quantum states of two aluminum superconducting
rings forming an 8-shape circular-asymmetric microstructure was examined under
a threading magnetic flux and bias by an alternating current without a dc
component. Quantum oscillations of the rectified dc voltage Vdc(B) as a
function of magnetic field were measured in the 8-shape microstructure at
various bias ac currents and temperatures close to critical. Fourier and
wavelet analyses of Vdc(B) functions revealed the presence of various
combination frequencies in addition to two ring fundamental frequencies, which
suggests the interaction in the structure. Deviation of the Vdc(B) function
from oddness with respect to the magnetic field direction was found for the
first time.
| cond-mat.supr-con cond-mat.mes-hall | the interaction between the quantum states of two aluminum superconducting rings forming an 8shape circularasymmetric microstructure was examined under a threading magnetic flux and bias by an alternating current without a dc component quantum oscillations of the rectified dc voltage vdcb as a function of magnetic field were measured in the 8shape microstructure at various bias ac currents and temperatures close to critical fourier and wavelet analyses of vdcb functions revealed the presence of various combination frequencies in addition to two ring fundamental frequencies which suggests the interaction in the structure deviation of the vdcb function from oddness with respect to the magnetic field direction was found for the first time | [['the', 'interaction', 'between', 'the', 'quantum', 'states', 'of', 'two', 'aluminum', 'superconducting', 'rings', 'forming', 'an', '8shape', 'circularasymmetric', 'microstructure', 'was', 'examined', 'under', 'a', 'threading', 'magnetic', 'flux', 'and', 'bias', 'by', 'an', 'alternating', 'current', 'without', 'a', 'dc', 'component', 'quantum', 'oscillations', 'of', 'the', 'rectified', 'dc', 'voltage', 'vdcb', 'as', 'a', 'function', 'of', 'magnetic', 'field', 'were', 'measured', 'in', 'the', '8shape', 'microstructure', 'at', 'various', 'bias', 'ac', 'currents', 'and', 'temperatures', 'close', 'to', 'critical', 'fourier', 'and', 'wavelet', 'analyses', 'of', 'vdcb', 'functions', 'revealed', 'the', 'presence', 'of', 'various', 'combination', 'frequencies', 'in', 'addition', 'to', 'two', 'ring', 'fundamental', 'frequencies', 'which', 'suggests', 'the', 'interaction', 'in', 'the', 'structure', 'deviation', 'of', 'the', 'vdcb', 'function', 'from', 'oddness', 'with', 'respect', 'to', 'the', 'magnetic', 'field', 'direction', 'was', 'found', 'for', 'the', 'first', 'time']] | [-0.19991715862845733, 0.15192172787312694, -0.04456154218883262, 0.015198779030207981, -0.02145964486591585, -0.08263618931560232, 0.031157062470761908, 0.39171703822642295, -0.28555855201976793, -0.30838069757541037, 0.03918558189767069, -0.2571179130878132, -0.09703180377228975, 0.22638669005502854, 0.03668285744382186, 0.03196757654281887, -0.052247227941480304, 0.036619638727856216, -0.078246694062375, -0.16455802106327871, 0.26680608811108647, 0.05413010773282532, 0.33064937900315533, 0.027978483244550188, 0.04939609951274637, -0.022373656708713587, 0.03997966536815773, 0.0766318055464433, -0.08186149300479326, 0.01740494157923889, 0.19731746133320402, -0.04985711856132692, 0.216171391218112, -0.4620204745783462, -0.16894567164231664, 0.056587782877220494, 0.0990930261669328, 0.06267042499484478, -0.057439194799207886, -0.2506621410348662, 0.05703015961508091, -0.09972609916852938, -0.1089632391031865, -0.03145584805558125, 0.015733411921574188, 0.06609996292438056, -0.27465189386605965, 0.10224280532696997, 0.04290531560577251, 0.1285163798109368, -0.09149686558809769, -0.1310181297311509, -0.03228565151299778, 0.07466824787804177, 0.04671295646678757, 0.0701636270712222, 0.18679348780010063, -0.13727578245573216, -0.12211713683791459, 0.26228104698731824, -0.08828094676619412, -0.11392468164532303, 0.1448330750420421, -0.20068275648681028, -0.0712699215095658, 0.1225149437768368, 0.11062562459479883, 0.04889196190387346, -0.17192077953085252, 0.04970802855730342, 0.023675152687943197, 0.16484581360274608, 0.11151946240381615, -0.0056036018235776745, 0.2713651288686706, 0.11398640236301297, 0.055020747576506705, 0.1841381084968898, -0.14968504987841658, -0.025755196130154905, -0.2500500000576984, -0.127192622080009, -0.1682414676352228, 0.0546996193614931, -0.08619531828384146, -0.21212883340614336, 0.45380837816812164, 0.11397722790537922, 0.18405134275949955, -0.02403414287071608, 0.2831883242706189, 0.13238386250507958, 0.10361899882722814, 0.03648518062792383, 0.2553952417445478, 0.23905221597702653, 0.1243840748914056, -0.285940297189177, 0.04811616013715933, 0.007772939103479321] |
712.1603 | Simulations of dynamo action in fully convective stars | We present three-dimensional nonlinear magnetohydrodynamic simulations of the
interiors of fully convective M-dwarfs. Our models consider 0.3 solar-mass
stars using the Anelastic Spherical Harmonic code, with the spherical
computational domain extending from 0.08-0.96 times the overall stellar radius.
Like previous authors, we find that fully convective stars can generate
kG-strength magnetic fields (in rough equipartition with the convective flows)
without the aid of a tachocline of shear. Although our model stars are
everywhere unstably stratified, the amplitudes and typical pattern sizes of the
convective flows vary strongly with radius, with the outer regions of the stars
hosting vigorous convection and field amplification while the deep interiors
are more quiescent. Modest differential rotation is established in hydrodynamic
calculations, but -- unlike in some prior work --strongly quenched in MHD
simulations because of the Maxwell stresses exerted by the dynamo-generated
magnetic fields. Despite the lack of strong differential rotation, the magnetic
fields realized in the simulations possess significant mean (axisymmetric)
components, which we attribute partly to the strong influence of rotation upon
the slowly overturning flows.
| astro-ph | we present threedimensional nonlinear magnetohydrodynamic simulations of the interiors of fully convective mdwarfs our models consider 03 solarmass stars using the anelastic spherical harmonic code with the spherical computational domain extending from 008096 times the overall stellar radius like previous authors we find that fully convective stars can generate kgstrength magnetic fields in rough equipartition with the convective flows without the aid of a tachocline of shear although our model stars are everywhere unstably stratified the amplitudes and typical pattern sizes of the convective flows vary strongly with radius with the outer regions of the stars hosting vigorous convection and field amplification while the deep interiors are more quiescent modest differential rotation is established in hydrodynamic calculations but unlike in some prior work strongly quenched in mhd simulations because of the maxwell stresses exerted by the dynamogenerated magnetic fields despite the lack of strong differential rotation the magnetic fields realized in the simulations possess significant mean axisymmetric components which we attribute partly to the strong influence of rotation upon the slowly overturning flows | [['we', 'present', 'threedimensional', 'nonlinear', 'magnetohydrodynamic', 'simulations', 'of', 'the', 'interiors', 'of', 'fully', 'convective', 'mdwarfs', 'our', 'models', 'consider', '03', 'solarmass', 'stars', 'using', 'the', 'anelastic', 'spherical', 'harmonic', 'code', 'with', 'the', 'spherical', 'computational', 'domain', 'extending', 'from', '008096', 'times', 'the', 'overall', 'stellar', 'radius', 'like', 'previous', 'authors', 'we', 'find', 'that', 'fully', 'convective', 'stars', 'can', 'generate', 'kgstrength', 'magnetic', 'fields', 'in', 'rough', 'equipartition', 'with', 'the', 'convective', 'flows', 'without', 'the', 'aid', 'of', 'a', 'tachocline', 'of', 'shear', 'although', 'our', 'model', 'stars', 'are', 'everywhere', 'unstably', 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712.1604 | Around the Gysin triangle II | We study the construction and properties of the Gysin triangle in an
axiomatic framework which covers triangulated mixed motives and MGl-modules
over an arbitrary base S. This allows to define the Gysin morphism associated
to a projective morphism between smooth S-schemes and prove duality for
projective smooth S-schemes. As part of the construction, cobordism classes are
considered and we give a proof of the Myschenko theorem generalized in our
context - this in fact gives another proof of the latter theorem in classical
stable homotopy through complex realization. Finally, these constructions apply
to rigid cohomology through the notion of a mixed Weil theory introduced by
D.-C. Cisinski and the author in another work.
| math.AG math.AT | we study the construction and properties of the gysin triangle in an axiomatic framework which covers triangulated mixed motives and mglmodules over an arbitrary base s this allows to define the gysin morphism associated to a projective morphism between smooth sschemes and prove duality for projective smooth sschemes as part of the construction cobordism classes are considered and we give a proof of the myschenko theorem generalized in our context this in fact gives another proof of the latter theorem in classical stable homotopy through complex realization finally these constructions apply to rigid cohomology through the notion of a mixed weil theory introduced by dc cisinski and the author in another work | [['we', 'study', 'the', 'construction', 'and', 'properties', 'of', 'the', 'gysin', 'triangle', 'in', 'an', 'axiomatic', 'framework', 'which', 'covers', 'triangulated', 'mixed', 'motives', 'and', 'mglmodules', 'over', 'an', 'arbitrary', 'base', 's', 'this', 'allows', 'to', 'define', 'the', 'gysin', 'morphism', 'associated', 'to', 'a', 'projective', 'morphism', 'between', 'smooth', 'sschemes', 'and', 'prove', 'duality', 'for', 'projective', 'smooth', 'sschemes', 'as', 'part', 'of', 'the', 'construction', 'cobordism', 'classes', 'are', 'considered', 'and', 'we', 'give', 'a', 'proof', 'of', 'the', 'myschenko', 'theorem', 'generalized', 'in', 'our', 'context', 'this', 'in', 'fact', 'gives', 'another', 'proof', 'of', 'the', 'latter', 'theorem', 'in', 'classical', 'stable', 'homotopy', 'through', 'complex', 'realization', 'finally', 'these', 'constructions', 'apply', 'to', 'rigid', 'cohomology', 'through', 'the', 'notion', 'of', 'a', 'mixed', 'weil', 'theory', 'introduced', 'by', 'dc', 'cisinski', 'and', 'the', 'author', 'in', 'another', 'work']] | [-0.16232191293331033, 0.02970830047190909, -0.1478563557294282, 0.07231234305072576, -0.08901327447119084, -0.14236718425950542, 0.006265587602022358, 0.29919296177104115, -0.37369789578951895, -0.222722201036628, 0.03891965104055337, -0.15295553598777836, -0.17344358696771617, 0.2023251533973962, -0.2331130736782639, -0.06524551491337743, 0.02211795644411309, 0.04158547414805402, -0.09099734394641762, -0.2590041912838139, 0.42073346844196996, -0.04954207376682792, 0.2565785175034927, 0.08876065357842229, 0.10708724851296707, 0.05873296893286434, -0.04606168210421774, -0.031245794203344054, -0.17556313776241786, 0.1912591295655478, 0.3553168332373554, 0.06594236105976796, 0.1881270517171784, -0.3697481428357688, -0.12576466746660034, 0.17300183526663618, 0.071610783721024, 0.06273476044456898, 0.006046655323271724, -0.2970400084826079, 0.10499511871656234, -0.19627888751724226, -0.17028890158557755, -0.09107696587981826, 0.01920346545732834, -0.003924234755421904, -0.2165740119293332, -0.04857296679084274, 0.14891572731801056, 0.142109531739896, -0.07802075280606831, -0.03411624248520556, -0.04498608848926696, 0.04252219301415607, -0.020320069544355977, 0.05672755745789883, 0.06624402244236659, -0.0538900584702126, -0.1539806983941658, 0.322352532195774, -0.05742873418494128, -0.2117115685800937, 0.13953610363162378, -0.06686871415427463, -0.17997414998456157, 0.08819749375212599, 0.054510732409967615, 0.19495118969882078, -0.023970484797080808, 0.1706341081780424, -0.12857810584828258, 0.059414632017300885, 0.12729848174970937, -0.005236770712177862, 0.1343515974977477, 0.08161812463605946, 0.08330304690382698, 0.20102619051255963, 0.013120447926286777, -0.13309058701958168, -0.4010291003876112, -0.22717104534756138, -0.09835439928362823, 0.15007709343494338, -0.09346276298099176, -0.18752911197529598, 0.3924881326711991, 0.06731227809214033, 0.19004883966831998, 0.15310006743741475, 0.27730245297266676, 0.024986152041872794, 0.01956592788284814, -0.009741522727364843, 0.14852133313278584, 0.27686624597461723, 0.01767107087335634, -0.08272198807151819, -0.02457250532038002, 0.2598989013582468] |
712.1605 | Low Mass $S$-wave $K\pi$ and $\pi\pi$ System | Knowledge of the details of the $S$-wave $K\pi$ and $\pi\pi$ systems limits
the precision of measurements of heavy quark meson properties. This talk covers
recent experimental developments in parametrizing and measuring these waves,
and examines possibilities for the future.
| hep-ex | knowledge of the details of the swave kpi and pipi systems limits the precision of measurements of heavy quark meson properties this talk covers recent experimental developments in parametrizing and measuring these waves and examines possibilities for the future | [['knowledge', 'of', 'the', 'details', 'of', 'the', 'swave', 'kpi', 'and', 'pipi', 'systems', 'limits', 'the', 'precision', 'of', 'measurements', 'of', 'heavy', 'quark', 'meson', 'properties', 'this', 'talk', 'covers', 'recent', 'experimental', 'developments', 'in', 'parametrizing', 'and', 'measuring', 'these', 'waves', 'and', 'examines', 'possibilities', 'for', 'the', 'future']] | [-0.18156215991490546, 0.22411922093194264, -0.0690085366845895, 0.03862976938044318, -0.0743757121455975, -0.060280740384955726, 0.08547134936237946, 0.25111039059284407, -0.2156070540062128, -0.24320559185714677, 0.01863251302618151, -0.35703272759341276, -0.0250194109021089, 0.19349602022423193, 0.05917930598251331, 0.1751403480481643, 0.11897548042142238, -0.017957863051635332, -0.14085108359368184, -0.21824294209289244, 0.3616466285326542, 0.01195253441349054, 0.23783756057039285, 0.21677808874310592, -0.0016842995746395527, 0.05721101802415573, -0.15195438069983935, -0.08502285731717563, -0.17634791312425827, 0.17659085038571787, 0.29231037038754526, 0.11769983587929836, 0.08429552914383702, -0.3847258469949548, -0.1465789992421961, 0.08024248041403599, 0.16790860302698535, 0.1408834809389634, -0.020570721357869796, -0.3537903896485193, 0.06826479356132974, -0.1701355733168431, -0.16989992258067316, -0.10212068431652509, 0.03018588042453839, 0.021526099116132312, -0.2348780372681526, 0.045518721907566756, 0.009566078517729273, 0.09394206369343476, -0.03354628880818685, -0.2463349048525859, 0.05291261121582908, 0.040296003700066835, 0.10026489155223736, 0.02325648554147054, 0.14782987215006962, -0.21838585955377382, -0.15756566177767056, 0.4042524578861701, -0.05016572699428369, -0.12339196062813966, 0.13454891555011272, -0.17194200321458852, -0.17198278654653293, 0.054383610196125046, 0.24086493425644362, 0.059024205001500935, -0.18156045047231975, 0.13106629665111166, -0.009442316798063425, 0.14710330370909128, 0.06781549918919037, 0.15014440696447706, 0.26969022408891946, 0.24765137396752834, -0.0829416727169584, 0.00990681875592623, -0.08183226215605362, -0.0684472602338363, -0.36790957597967905, -0.13048338992759967, -0.048203711374065816, 0.005237932728890043, -0.026489440935666863, -0.05166432776231653, 0.4560244131164673, 0.1571184828495368, 0.23860777599307206, -0.04002761829477281, 0.3439242601012572, 0.01921352218442525, -0.014509951552519431, 0.008590873354711594, 0.3302906084901247, 0.2180563562716811, 0.1734861281628792, -0.2591392800020866, 0.04292155948216812, -0.004536356406811721] |
712.1606 | Computer simulation of Wheeler's delayed choice experiment with photons | We present a computer simulation model of Wheeler's delayed choice experiment
that is a one-to-one copy of an experiment reported recently (V. Jacques {\sl
et al.}, Science 315, 966 (2007)). The model is solely based on experimental
facts, satisfies Einstein's criterion of local causality and does not rely on
any concept of quantum theory. Nevertheless, the simulation model reproduces
the averages as obtained from the quantum theoretical description of Wheeler's
delayed choice experiment. Our results prove that it is possible to give a
particle-only description of Wheeler's delayed choice experiment which
reproduces the averages calculated from quantum theory and which does not defy
common sense.
| quant-ph | we present a computer simulation model of wheelers delayed choice experiment that is a onetoone copy of an experiment reported recently v jacques sl et al science 315 966 2007 the model is solely based on experimental facts satisfies einsteins criterion of local causality and does not rely on any concept of quantum theory nevertheless the simulation model reproduces the averages as obtained from the quantum theoretical description of wheelers delayed choice experiment our results prove that it is possible to give a particleonly description of wheelers delayed choice experiment which reproduces the averages calculated from quantum theory and which does not defy common sense | [['we', 'present', 'a', 'computer', 'simulation', 'model', 'of', 'wheelers', 'delayed', 'choice', 'experiment', 'that', 'is', 'a', 'onetoone', 'copy', 'of', 'an', 'experiment', 'reported', 'recently', 'v', 'jacques', 'sl', 'et', 'al', 'science', '315', '966', '2007', 'the', 'model', 'is', 'solely', 'based', 'on', 'experimental', 'facts', 'satisfies', 'einsteins', 'criterion', 'of', 'local', 'causality', 'and', 'does', 'not', 'rely', 'on', 'any', 'concept', 'of', 'quantum', 'theory', 'nevertheless', 'the', 'simulation', 'model', 'reproduces', 'the', 'averages', 'as', 'obtained', 'from', 'the', 'quantum', 'theoretical', 'description', 'of', 'wheelers', 'delayed', 'choice', 'experiment', 'our', 'results', 'prove', 'that', 'it', 'is', 'possible', 'to', 'give', 'a', 'particleonly', 'description', 'of', 'wheelers', 'delayed', 'choice', 'experiment', 'which', 'reproduces', 'the', 'averages', 'calculated', 'from', 'quantum', 'theory', 'and', 'which', 'does', 'not', 'defy', 'common', 'sense']] | [-0.06955539841825763, 0.08546047013022914, -0.16742660213439237, 0.049764443072490394, -0.1192419029594887, -0.18210658466975604, 0.04971759441486072, 0.3006506723107859, -0.19357594860096772, -0.335088628406326, 0.024916680782501185, -0.2673968450920213, -0.1936361270380162, 0.2345067249156446, -0.11876673706408059, 0.03698750044707032, 0.11539872364983672, 0.04587145926696914, -0.035312263329979034, -0.22862736374760667, 0.2352189111833771, 0.13206091814264212, 0.3409149921321798, 0.02511581794935323, 0.15267965559441585, 0.047091700223141485, -0.0575964017227913, 0.01419433970891294, -0.16794387180028328, 0.06543734119983301, 0.2051604967342601, 0.18964250855635675, 0.2189888319000602, -0.4347505471092604, -0.24114261121888245, 0.07984907334404333, 0.04290347459859082, 0.14628387288456515, -0.05003453856555834, -0.29393983818424335, 0.035563592107168265, -0.16044476890847797, -0.12306216922366903, -0.05390953913087114, 0.007070431774038644, -0.016457536887554896, -0.26620078776918704, 0.1029801811934227, 0.08385774417381202, 0.05608157283803891, -0.03326324021798514, -0.06800245512720375, 0.018740292046485203, 0.057852193748667124, -0.04646667455921748, 0.056344853226272834, 0.10391112365094679, -0.06971337624515096, -0.21428806081170304, 0.37976337553312384, -0.024177520260924384, -0.12454206237702498, 0.17116740917387818, -0.10989292842291651, -0.113060053819347, 0.05209599302948586, 0.022325919546364318, 0.08915843059353176, -0.11896593943238258, 0.12077316653670832, -0.14706843552412466, 0.23129362129340214, 0.03498751585416141, 0.015358838381334429, 0.15964468155233633, 0.12172935486194633, -0.013833171971851872, 0.0280392136047816, -0.0008959206065074319, -0.19323070309058363, -0.41125419289760645, -0.11257459742150136, -0.21028509171696247, 0.10260753666654983, -0.015489552546724943, -0.1538772028249999, 0.3184965343391966, 0.16282258007143224, 0.16875672204242576, 0.02301996169567463, 0.22524075226946955, 0.08116536094540996, 0.020652649541651562, 0.00833520299001109, 0.28582147248976286, 0.15700436520966746, 0.1234200068084257, -0.20868761574494696, 0.09259234476568444, 0.09323367809965497] |
712.1607 | Electron-phonon interaction and charge carrier mass enhancement in
SrTiO3 | We report a comprehensive THz, infrared and optical study of Nb doped SrTiO3
as well as DC conductivity and Hall effect measurements. Our THz spectra at 7K
show the presence of a very narrow (<2 meV) Drude peak, the spectral weight of
which shows approximately a factor of three enhancement of the band mass for
all carrier concentrations. The missing spectral weight is regained in a broad
'mid-infrared' band which originates from electron-phonon coupling. We find no
evidence of a particularly large electron-phonon coupling that would result in
small polaron formation. Analysis of the results yields an electron-phonon
coupling parameter of an intermediate strength, $\alpha \approx 4$.
| cond-mat.str-el | we report a comprehensive thz infrared and optical study of nb doped srtio3 as well as dc conductivity and hall effect measurements our thz spectra at 7k show the presence of a very narrow 2 mev drude peak the spectral weight of which shows approximately a factor of three enhancement of the band mass for all carrier concentrations the missing spectral weight is regained in a broad midinfrared band which originates from electronphonon coupling we find no evidence of a particularly large electronphonon coupling that would result in small polaron formation analysis of the results yields an electronphonon coupling parameter of an intermediate strength alpha approx 4 | [['we', 'report', 'a', 'comprehensive', 'thz', 'infrared', 'and', 'optical', 'study', 'of', 'nb', 'doped', 'srtio3', 'as', 'well', 'as', 'dc', 'conductivity', 'and', 'hall', 'effect', 'measurements', 'our', 'thz', 'spectra', 'at', '7k', 'show', 'the', 'presence', 'of', 'a', 'very', 'narrow', '2', 'mev', 'drude', 'peak', 'the', 'spectral', 'weight', 'of', 'which', 'shows', 'approximately', 'a', 'factor', 'of', 'three', 'enhancement', 'of', 'the', 'band', 'mass', 'for', 'all', 'carrier', 'concentrations', 'the', 'missing', 'spectral', 'weight', 'is', 'regained', 'in', 'a', 'broad', 'midinfrared', 'band', 'which', 'originates', 'from', 'electronphonon', 'coupling', 'we', 'find', 'no', 'evidence', 'of', 'a', 'particularly', 'large', 'electronphonon', 'coupling', 'that', 'would', 'result', 'in', 'small', 'polaron', 'formation', 'analysis', 'of', 'the', 'results', 'yields', 'an', 'electronphonon', 'coupling', 'parameter', 'of', 'an', 'intermediate', 'strength', 'alpha', 'approx', '4']] | [-0.1546247398299078, 0.1498266567220959, -0.013664321377699342, 0.0017967136526724028, -0.02482959258976114, -0.14652830915020726, 0.10118886990751201, 0.42468922465134445, -0.23069983542348457, -0.30477687101114853, -0.014213230193235745, -0.2937248229292857, -0.10509727832591423, 0.20494338990163022, 0.05949330893910934, -0.03915652351575755, 0.02124299717388142, -0.06788299652251685, -0.09082504991816234, -0.13734855230410245, 0.27837130559225365, 0.07368844950562953, 0.2832413368072866, 0.16870104037573405, 0.027885332451175863, 0.00012819789280401212, 0.05100378942475698, -0.00997592498348138, -0.1361997787926752, 0.050620560912920214, 0.2954868920164827, -0.09618287013025484, 0.2606682677211449, -0.300027286316155, -0.20951161558944384, 0.007085458836822866, 0.13186710693211964, 0.12209695283210376, -0.07409721213419025, -0.19238827508987388, 0.04775761938262209, -0.16193460903748452, -0.10482505329440688, -0.02530841709976302, 0.018548658135059837, -0.037050772651977766, -0.3123789206408312, 0.12982124091935493, 0.0406596674116015, 0.08807587580946839, -0.125156722841001, -0.1856857835158497, -0.05749599582071756, 0.03599514898944159, 0.051493610819000925, 0.03193613775205041, 0.1579585490121602, -0.15058315068831987, -0.07540535894287838, 0.34034402409098413, -0.12784408878047612, 0.013992114775927267, 0.16183841024812695, -0.20158088494040002, -0.08607981061545487, 0.21812623720311464, 0.09741363740117054, 0.098391797806998, -0.11610329578517475, 0.0773951113648347, -0.037388801930480955, 0.2723008945462442, 0.0479639189570237, 0.1430820190188884, 0.2192793629854639, 0.19664137445338, 0.016982068882158426, 0.1136214425373892, -0.18360513262450695, 0.05413920637742381, -0.2635498221128065, -0.11560909447660582, -0.2273284786100125, 0.14217200924133203, -0.14436497224606878, -0.19141974486845814, 0.40958786548646253, 0.11738378278667404, 0.24418583217242332, 0.005335670793603096, 0.2197374249503852, 0.1619695696487988, 0.10436146840383516, 0.045495282710643015, 0.3142233915783674, 0.15513370408911573, 0.11722690782675119, -0.2935128709079402, -0.013160480797251635, -0.04641657940299189] |
712.1608 | Lagrangian Densities and Principle of Least Action in Nonrelativistic
Quantum Mechanics | The Principle of Least Action is used with a simple Lagrangian density,
involving second-order derivatives of the wave function, to obtain the
Schroedinger equation. A Hamiltonian density obtained from this simple
Lagrangian density shows that Hamilton's equations also give the Schroedinger
equation. This simple Lagrangian density is equivalent to a standard Lagrangian
density with first-order derivatives. For a time-independent system the
Principle of Least Action reduces to the energy variational principle. For
time-dependent systems the Principle of Least Action gives time-dependent
approximations. Using a Hartree product trial wave function for a
time-dependent many-boson system, we apply the Principle of Least Action to
obtain the Gross-Pitaevskii equation that describes a Bose-Einstein condensate.
| quant-ph | the principle of least action is used with a simple lagrangian density involving secondorder derivatives of the wave function to obtain the schroedinger equation a hamiltonian density obtained from this simple lagrangian density shows that hamiltons equations also give the schroedinger equation this simple lagrangian density is equivalent to a standard lagrangian density with firstorder derivatives for a timeindependent system the principle of least action reduces to the energy variational principle for timedependent systems the principle of least action gives timedependent approximations using a hartree product trial wave function for a timedependent manyboson system we apply the principle of least action to obtain the grosspitaevskii equation that describes a boseeinstein condensate | [['the', 'principle', 'of', 'least', 'action', 'is', 'used', 'with', 'a', 'simple', 'lagrangian', 'density', 'involving', 'secondorder', 'derivatives', 'of', 'the', 'wave', 'function', 'to', 'obtain', 'the', 'schroedinger', 'equation', 'a', 'hamiltonian', 'density', 'obtained', 'from', 'this', 'simple', 'lagrangian', 'density', 'shows', 'that', 'hamiltons', 'equations', 'also', 'give', 'the', 'schroedinger', 'equation', 'this', 'simple', 'lagrangian', 'density', 'is', 'equivalent', 'to', 'a', 'standard', 'lagrangian', 'density', 'with', 'firstorder', 'derivatives', 'for', 'a', 'timeindependent', 'system', 'the', 'principle', 'of', 'least', 'action', 'reduces', 'to', 'the', 'energy', 'variational', 'principle', 'for', 'timedependent', 'systems', 'the', 'principle', 'of', 'least', 'action', 'gives', 'timedependent', 'approximations', 'using', 'a', 'hartree', 'product', 'trial', 'wave', 'function', 'for', 'a', 'timedependent', 'manyboson', 'system', 'we', 'apply', 'the', 'principle', 'of', 'least', 'action', 'to', 'obtain', 'the', 'grosspitaevskii', 'equation', 'that', 'describes', 'a', 'boseeinstein', 'condensate']] | [-0.15843542411017256, 0.07311789248440717, -0.15613132328852206, 0.09128174231060453, -0.0844200062523554, -0.11709166060176653, -0.01916546354422698, 0.2686631688596429, -0.24161287206686563, -0.2514085257090293, 0.016629462050659967, -0.2495576385870106, -0.14982954020033012, 0.12911582238519112, 0.02061867360277353, 0.0948034718146061, 0.07161075301334127, 0.07906346628442407, -0.15323201960019833, -0.1855048092233168, 0.3288912371069461, -0.02636177074331958, 0.21427133811537075, 0.03709936173850888, 0.214088632662252, 0.031970884116064455, 0.0824672314422289, 0.02057008541751284, -0.14007552982969232, 0.11351167421519488, 0.20230757255476337, 0.09230089143992544, 0.2942777274570822, -0.4495700760534755, -0.28111561655847206, 0.061420478409697374, 0.07287978038175015, 0.19499344570847513, 0.0006157000022646678, -0.31532265803029946, -0.01248871578692316, -0.18958895588880992, -0.25644291878619174, -0.11359402059099159, -0.007789082909086803, 0.042023660975869175, -0.30206384833667194, 0.17582996206348636, -0.019594591840900278, -0.009906712382494865, -0.10719240230281611, -0.07557034243091203, -0.020365878521162714, -0.014764374310805186, 0.018770850450220006, 0.07927335119965645, 0.08064057079336799, -0.0972681533553646, -0.0594161667877825, 0.420199609990861, -0.1691732837185096, -0.2748410333417826, 0.1292283780084134, -0.08722595779879673, -0.08685709980341631, 0.1423620764031872, 0.1444331284545295, 0.16719033237680928, -0.21807617037599017, 0.10875988752488885, -0.04064934138236945, 0.16561674373643892, 0.04792722548685364, -0.04289511727957843, 0.10855769553968499, 0.1130661738381998, 0.14519001280905697, 0.10513285663280938, -0.003632289231628985, -0.17407736865602233, -0.38386468932888396, -0.16424069031317895, -0.20598067189902403, 0.11361886177559148, -0.09324138326704637, -0.1935342385366492, 0.3878498825329557, 0.127503973167591, 0.11132816638092737, 0.10956376292407177, 0.2711329535656684, 0.32510151685559535, 0.025768443635824295, 0.04835105524608144, 0.19973558385915183, 0.21028961420378034, 0.0495718882821903, -0.2560827054989499, -0.06878034370691255, 0.2220203405569165] |
712.1609 | Distributed Consensus Algorithms in Sensor Networks: Quantized Data and
Random Link Failures | The paper studies the problem of distributed average consensus in sensor
networks with quantized data and random link failures. To achieve consensus,
dither (small noise) is added to the sensor states before quantization. When
the quantizer range is unbounded (countable number of quantizer levels),
stochastic approximation shows that consensus is asymptotically achieved with
probability one and in mean square to a finite random variable. We show that
the meansquared error (m.s.e.) can be made arbitrarily small by tuning the link
weight sequence, at a cost of the convergence rate of the algorithm. To study
dithered consensus with random links when the range of the quantizer is
bounded, we establish uniform boundedness of the sample paths of the unbounded
quantizer. This requires characterization of the statistical properties of the
supremum taken over the sample paths of the state of the quantizer. This is
accomplished by splitting the state vector of the quantizer in two components:
one along the consensus subspace and the other along the subspace orthogonal to
the consensus subspace. The proofs use maximal inequalities for submartingale
and supermartingale sequences. From these, we derive probability bounds on the
excursions of the two subsequences, from which probability bounds on the
excursions of the quantizer state vector follow. The paper shows how to use
these probability bounds to design the quantizer parameters and to explore
tradeoffs among the number of quantizer levels, the size of the quantization
steps, the desired probability of saturation, and the desired level of accuracy
$\epsilon$ away from consensus. Finally, the paper illustrates the quantizer
design with a numerical study.
| cs.MA cs.IT math.IT | the paper studies the problem of distributed average consensus in sensor networks with quantized data and random link failures to achieve consensus dither small noise is added to the sensor states before quantization when the quantizer range is unbounded countable number of quantizer levels stochastic approximation shows that consensus is asymptotically achieved with probability one and in mean square to a finite random variable we show that the meansquared error mse can be made arbitrarily small by tuning the link weight sequence at a cost of the convergence rate of the algorithm to study dithered consensus with random links when the range of the quantizer is bounded we establish uniform boundedness of the sample paths of the unbounded quantizer this requires characterization of the statistical properties of the supremum taken over the sample paths of the state of the quantizer this is accomplished by splitting the state vector of the quantizer in two components one along the consensus subspace and the other along the subspace orthogonal to the consensus subspace the proofs use maximal inequalities for submartingale and supermartingale sequences from these we derive probability bounds on the excursions of the two subsequences from which probability bounds on the excursions of the quantizer state vector follow the paper shows how to use these probability bounds to design the quantizer parameters and to explore tradeoffs among the number of quantizer levels the size of the quantization steps the desired probability of saturation and the desired level of accuracy epsilon away from consensus finally the paper illustrates the quantizer design with a numerical study | [['the', 'paper', 'studies', 'the', 'problem', 'of', 'distributed', 'average', 'consensus', 'in', 'sensor', 'networks', 'with', 'quantized', 'data', 'and', 'random', 'link', 'failures', 'to', 'achieve', 'consensus', 'dither', 'small', 'noise', 'is', 'added', 'to', 'the', 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712.161 | Accidental Inflation in String Theory | We show that inflation in type IIB string theory driven by the volume modulus
can be realized in the context of the racetrack-based Kallosh-Linde model (KL)
of moduli stabilization. Inflation here arises through the volume modulus
slow-rolling down from a flat hill-top or inflection point of the scalar
potential. This situation can be quite generic in the landscape, where by
uplifting one of the two adjacent minima one can turn the barrier either to a
flat saddle point or to an inflection point supporting eternal inflation. The
resulting spectral index is tunable in the range of 0.93 < n_s < 1, and there
is only negligible production of primordial gravitational waves r < 10^{-6}.
The flatness of the potential in this scenario requires fine-tuning, which may
be justified taking into account the exponential reward by volume factors
preferring the regions of the universe with the maximal amount of slow-roll
inflation. This consideration leads to a tentative prediction of the spectral
index $n_s\approx 0.95$ or $n_s \approx 0.93$ depending on whether the
potential has a symmetry phi -> - phi or not.
| hep-th astro-ph gr-qc | we show that inflation in type iib string theory driven by the volume modulus can be realized in the context of the racetrackbased kalloshlinde model kl of moduli stabilization inflation here arises through the volume modulus slowrolling down from a flat hilltop or inflection point of the scalar potential this situation can be quite generic in the landscape where by uplifting one of the two adjacent minima one can turn the barrier either to a flat saddle point or to an inflection point supporting eternal inflation the resulting spectral index is tunable in the range of 093 n_s 1 and there is only negligible production of primordial gravitational waves r 106 the flatness of the potential in this scenario requires finetuning which may be justified taking into account the exponential reward by volume factors preferring the regions of the universe with the maximal amount of slowroll inflation this consideration leads to a tentative prediction of the spectral index n_sapprox 095 or n_s approx 093 depending on whether the potential has a symmetry phi phi or not | [['we', 'show', 'that', 'inflation', 'in', 'type', 'iib', 'string', 'theory', 'driven', 'by', 'the', 'volume', 'modulus', 'can', 'be', 'realized', 'in', 'the', 'context', 'of', 'the', 'racetrackbased', 'kalloshlinde', 'model', 'kl', 'of', 'moduli', 'stabilization', 'inflation', 'here', 'arises', 'through', 'the', 'volume', 'modulus', 'slowrolling', 'down', 'from', 'a', 'flat', 'hilltop', 'or', 'inflection', 'point', 'of', 'the', 'scalar', 'potential', 'this', 'situation', 'can', 'be', 'quite', 'generic', 'in', 'the', 'landscape', 'where', 'by', 'uplifting', 'one', 'of', 'the', 'two', 'adjacent', 'minima', 'one', 'can', 'turn', 'the', 'barrier', 'either', 'to', 'a', 'flat', 'saddle', 'point', 'or', 'to', 'an', 'inflection', 'point', 'supporting', 'eternal', 'inflation', 'the', 'resulting', 'spectral', 'index', 'is', 'tunable', 'in', 'the', 'range', 'of', '093', 'n_s', '1', 'and', 'there', 'is', 'only', 'negligible', 'production', 'of', 'primordial', 'gravitational', 'waves', 'r', '106', 'the', 'flatness', 'of', 'the', 'potential', 'in', 'this', 'scenario', 'requires', 'finetuning', 'which', 'may', 'be', 'justified', 'taking', 'into', 'account', 'the', 'exponential', 'reward', 'by', 'volume', 'factors', 'preferring', 'the', 'regions', 'of', 'the', 'universe', 'with', 'the', 'maximal', 'amount', 'of', 'slowroll', 'inflation', 'this', 'consideration', 'leads', 'to', 'a', 'tentative', 'prediction', 'of', 'the', 'spectral', 'index', 'n_sapprox', '095', 'or', 'n_s', 'approx', '093', 'depending', 'on', 'whether', 'the', 'potential', 'has', 'a', 'symmetry', 'phi', 'phi', 'or', 'not']] | [-0.16365430565817016, 0.1763186875019788, -0.10803616669162043, 0.07431844441685825, -0.0569742405254926, -0.17547893072877613, 0.0526512594747224, 0.30493328191872154, -0.25211905937109674, -0.29141905848868194, 0.10080739349725523, -0.23968293576883817, -0.10229290025840912, 0.1353904489499317, -0.07237952197502766, -0.015435177702456712, 0.0015857976748208913, 0.04190125472577555, -0.03702418932025986, -0.23255794034472535, 0.31939585132790466, 0.05986301404590319, 0.23510384350749, 0.053897528225289926, 0.027018670812249183, -0.0700231325160712, 0.040585825970462924, 0.009534826313278505, -0.14860361297348781, 0.08974154500157705, 0.17079721447346466, 0.10763304810571883, 0.24797667339178067, -0.3819943089463881, -0.24904715964504118, 0.21994644003920258, 0.14468710894463585, 0.0671504316179614, -0.041001400618281746, -0.24360968270206027, 0.08125744873923915, -0.15230194734409452, -0.13168814408725926, -0.025267090088288698, 0.015938238700120046, -0.06537400260301574, -0.2878247423203928, 0.11002233138307929, -0.0012405927293002606, 0.009440318839624524, -0.04492960053762155, -0.0802501296398363, -0.07896973267197609, 0.021953573575509446, 0.12064974411191152, 0.0729918477258512, 0.1572417106206662, -0.1658673623726437, -0.04321120510476508, 0.38959493853683985, -0.12209999543814255, -0.149109888084765, 0.11017944616398641, -0.1336872287067984, -0.09001668644004635, 0.13906064190868556, 0.09018242344260216, 0.07711237512528896, -0.09177797028794885, 0.1669942660493377, 0.05900079471790897, 0.1986532591734015, 0.12886966543006045, -0.0066619006650788445, 0.3171227149292827, 0.12892139856969673, 0.05311126621240484, 0.10638632356022884, -0.07850034268772496, -0.10558946067733424, -0.37941542579925486, -0.10626765075139702, -0.16423771021355477, 0.1030090033623024, -0.1978057631450273, -0.19148668422230652, 0.40906353483242647, 0.07861531828064472, 0.24795266620814801, 0.010795205826871096, 0.23516681053808758, 0.12530043979374958, 0.06294496854501111, 0.03151190636438384, 0.3021485043769436, 0.05328358096403203, 0.0898042504010456, -0.1850494765084503, -0.003835101383072989, 0.045314636688147274] |
712.1611 | The structure of critical sets for F_p arithmetic progressions | Fix a prime p and a density 0 < d <= 1. Among all functions f : F_p -> [0,1],
what can one say about those which assign minimal weight to three-term
arithmetic progressions -- that is, the sum of f(a)f(a+x)f(a+2x) is minimal as
we sum over all a and x -- subject to the density constraint that the expected
value of f equals d? In the present paper we show three things about them: 1)
Such f are nearly indicator functions; 2) They enjoy a certain ``local
minimal'' property; and, 3) They are approximately indicator functions for
certain sumsets A+B.
| math.CO math.NT | fix a prime p and a density 0 d 1 among all functions f f_p 01 what can one say about those which assign minimal weight to threeterm arithmetic progressions that is the sum of fafaxfa2x is minimal as we sum over all a and x subject to the density constraint that the expected value of f equals d in the present paper we show three things about them 1 such f are nearly indicator functions 2 they enjoy a certain local minimal property and 3 they are approximately indicator functions for certain sumsets ab | [['fix', 'a', 'prime', 'p', 'and', 'a', 'density', '0', 'd', '1', 'among', 'all', 'functions', 'f', 'f_p', '01', 'what', 'can', 'one', 'say', 'about', 'those', 'which', 'assign', 'minimal', 'weight', 'to', 'threeterm', 'arithmetic', 'progressions', 'that', 'is', 'the', 'sum', 'of', 'fafaxfa2x', 'is', 'minimal', 'as', 'we', 'sum', 'over', 'all', 'a', 'and', 'x', 'subject', 'to', 'the', 'density', 'constraint', 'that', 'the', 'expected', 'value', 'of', 'f', 'equals', 'd', 'in', 'the', 'present', 'paper', 'we', 'show', 'three', 'things', 'about', 'them', '1', 'such', 'f', 'are', 'nearly', 'indicator', 'functions', '2', 'they', 'enjoy', 'a', 'certain', 'local', 'minimal', 'property', 'and', '3', 'they', 'are', 'approximately', 'indicator', 'functions', 'for', 'certain', 'sumsets', 'ab']] | [-0.21174550282167012, 0.12257206323061218, -0.07999319457349942, 0.09243428843446383, -0.009342600135727132, -0.14662415385642585, 0.04818247628096055, 0.3583040941021148, -0.31901221173478567, -0.2882766463763472, 0.08503176287148505, -0.3249629922409324, -0.12285996588105534, 0.1530902508864219, -0.036553771487694786, 0.040432536491549556, -0.008935229842887913, 0.12683116901229988, -0.10104411524879013, -0.30979782695624425, 0.300361236478103, -0.08263746901177504, 0.16865024793932729, 0.02786980570353409, 0.055025077608235655, -0.010396584016370012, -0.0005079743779323836, -0.012295376861150911, -0.18255966161256978, 0.11572861950844526, 0.2555071747406049, 0.1734584540406123, 0.3230128780879239, -0.3452486021523463, -0.14239693473667858, 0.22484609432161806, 0.12293572642622476, -0.04195995757262163, 0.054297163416235215, -0.1217907241624879, 0.18433303195869233, -0.1503242658911907, -0.12884723144444696, -0.05539513405095389, 0.10676575456547768, 0.07299194397761467, -0.3208505283803382, 0.02264470081191827, 0.07685494552950989, 0.08405279318128336, -0.034662182257074785, -0.215978058599966, -0.01366431402300108, 0.08468345416947565, 0.017093812496936384, 0.12627505712171502, 0.07822074427546814, -0.10870653837721081, -0.04585712906988734, 0.3775329302619905, -0.05267656131825866, -0.22428560330522584, 0.1413401483825626, -0.20376001611510489, -0.11828850248352961, 0.09114041534113757, 0.08152669976419581, 0.12261857314312712, -0.07378349564176925, 0.10545485820732714, -0.12467562590795074, 0.16384785225060075, 0.1228952056708488, 0.07022198693866426, 0.163610728143001, 0.017112632718016493, 0.11732558574046979, 0.06231890206641339, -0.0030153769324162104, 0.01846571935636754, -0.37397148938691044, -0.14619423741316226, -0.16636186775731596, 0.14825111970384705, -0.10589198956338496, -0.15921396666523466, 0.36289730652215635, 0.08204128447068022, 0.19979747132140588, 0.13136563836621676, 0.20029915784029884, 0.13495605406128464, 0.07816929772912347, 0.08082367526367307, 0.10470101685124508, 0.12359946290467014, -0.05421634776483072, -0.10515698797485613, 0.049684257573817184, 0.07242178124316195] |
712.1612 | SHARC-II 350 micron Observations of Thermal Emission from Warm Dust in
z>=5 Quasars | We present observations of four z>= SDSS quasars at 350 micron with the
SHARC-II bolometer camera on the Caltech Submillimeter Observatory. These are
among the deepest observations that have been made by SHARC-II at 350 micron,
and three quasars are detected at >=3 sigma significance, greatly increasing
the sample of 350 micron (corresponds to rest frame wavelengths of <60 micron
at z>=5), detected high-redshift quasars. The derived rest frame far-infrared
(FIR) emission in the three detected sources is about five to ten times
stronger than that expected from the average SED of the local quasars given the
same 1450A luminosity. Combining the previous submillimeter and millimeter
observations at longer wavelengths, the temperatures of the FIR-emitting warm
dust from the three quasar detections are estimated to be in the range of 39 to
52 K. Additionally, the FIR-to-radio SEDs of the three 350 micron detections
are consistent with the emission from typical star forming galaxies. The FIR
luminosities are ~10^{13} L_solar and the dust masses are >= 10^{8}M_solar.
These results confirm that huge amounts of warm dust can exist in the host
galaxies of optically bright quasars as early as z~6. The universe is so young
at these epochs (~1 Gyr) that a rapid dust formation mechanism is required. We
estimate the size of the FIR dust emission region to be about a few kpc, and
further provide a comparison of the SEDs among different kinds of dust emitting
sources to investigate the dominant dust heating mechanism.
| astro-ph | we present observations of four z sdss quasars at 350 micron with the sharcii bolometer camera on the caltech submillimeter observatory these are among the deepest observations that have been made by sharcii at 350 micron and three quasars are detected at 3 sigma significance greatly increasing the sample of 350 micron corresponds to rest frame wavelengths of 60 micron at z5 detected highredshift quasars the derived rest frame farinfrared fir emission in the three detected sources is about five to ten times stronger than that expected from the average sed of the local quasars given the same 1450a luminosity combining the previous submillimeter and millimeter observations at longer wavelengths the temperatures of the firemitting warm dust from the three quasar detections are estimated to be in the range of 39 to 52 k additionally the firtoradio seds of the three 350 micron detections are consistent with the emission from typical star forming galaxies the fir luminosities are 1013 l_solar and the dust masses are 108m_solar these results confirm that huge amounts of warm dust can exist in the host galaxies of optically bright quasars as early as z6 the universe is so young at these epochs 1 gyr that a rapid dust formation mechanism is required we estimate the size of the fir dust emission region to be about a few kpc and further provide a comparison of the seds among different kinds of dust emitting sources to investigate the dominant dust heating mechanism | [['we', 'present', 'observations', 'of', 'four', 'z', 'sdss', 'quasars', 'at', '350', 'micron', 'with', 'the', 'sharcii', 'bolometer', 'camera', 'on', 'the', 'caltech', 'submillimeter', 'observatory', 'these', 'are', 'among', 'the', 'deepest', 'observations', 'that', 'have', 'been', 'made', 'by', 'sharcii', 'at', '350', 'micron', 'and', 'three', 'quasars', 'are', 'detected', 'at', '3', 'sigma', 'significance', 'greatly', 'increasing', 'the', 'sample', 'of', '350', 'micron', 'corresponds', 'to', 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712.1613 | Effective Kbar N interaction based on chiral SU(3) dynamics | The effective Kbar N interaction based on chiral SU(3) coupled-channel
dynamics is derived and its extrapolation below the Kbar N threshold is studied
in detail. Starting from the coupled-channel scattering equations, we eliminate
the channels other than Kbar N and obtain an effective interaction in the
single Kbar N channel. An equivalent local potential in coordinate space is
constructed such as to reproduce the full scattering amplitude of the chiral
SU(3) coupled-channel framework. We discuss several realistic chiral
SU(3)-based models in comparison to reach conclusions about the uncertainties
involved. It turns out that, in the region relevant to the discussion of deeply
bound Kbar-nuclear few-body systems, the resulting energy-dependent, equivalent
local potential is substantially less attractive than the one suggested in
previous purely phenomenological treatments.
| nucl-th hep-ph | the effective kbar n interaction based on chiral su3 coupledchannel dynamics is derived and its extrapolation below the kbar n threshold is studied in detail starting from the coupledchannel scattering equations we eliminate the channels other than kbar n and obtain an effective interaction in the single kbar n channel an equivalent local potential in coordinate space is constructed such as to reproduce the full scattering amplitude of the chiral su3 coupledchannel framework we discuss several realistic chiral su3based models in comparison to reach conclusions about the uncertainties involved it turns out that in the region relevant to the discussion of deeply bound kbarnuclear fewbody systems the resulting energydependent equivalent local potential is substantially less attractive than the one suggested in previous purely phenomenological treatments | [['the', 'effective', 'kbar', 'n', 'interaction', 'based', 'on', 'chiral', 'su3', 'coupledchannel', 'dynamics', 'is', 'derived', 'and', 'its', 'extrapolation', 'below', 'the', 'kbar', 'n', 'threshold', 'is', 'studied', 'in', 'detail', 'starting', 'from', 'the', 'coupledchannel', 'scattering', 'equations', 'we', 'eliminate', 'the', 'channels', 'other', 'than', 'kbar', 'n', 'and', 'obtain', 'an', 'effective', 'interaction', 'in', 'the', 'single', 'kbar', 'n', 'channel', 'an', 'equivalent', 'local', 'potential', 'in', 'coordinate', 'space', 'is', 'constructed', 'such', 'as', 'to', 'reproduce', 'the', 'full', 'scattering', 'amplitude', 'of', 'the', 'chiral', 'su3', 'coupledchannel', 'framework', 'we', 'discuss', 'several', 'realistic', 'chiral', 'su3based', 'models', 'in', 'comparison', 'to', 'reach', 'conclusions', 'about', 'the', 'uncertainties', 'involved', 'it', 'turns', 'out', 'that', 'in', 'the', 'region', 'relevant', 'to', 'the', 'discussion', 'of', 'deeply', 'bound', 'kbarnuclear', 'fewbody', 'systems', 'the', 'resulting', 'energydependent', 'equivalent', 'local', 'potential', 'is', 'substantially', 'less', 'attractive', 'than', 'the', 'one', 'suggested', 'in', 'previous', 'purely', 'phenomenological', 'treatments']] | [-0.1188894261494279, 0.15077425733045674, -0.0804104368723929, 0.10962001035362481, -0.030373047944158314, -0.14591896335408092, 0.061776394955813885, 0.32549013710021973, -0.2066258568763733, -0.25493729347735644, -0.000450307821854949, -0.30162938544526696, -0.12435750070569339, 0.11623901064693928, 0.0697104618193116, 0.07306710311723873, 0.005482534481212497, 0.08546960978209972, -0.08658095346204936, -0.22647873402386903, 0.3087222912088037, 0.04018766451627016, 0.2324989651720971, 0.09534890694916248, -0.006588729143142701, 0.04850701617309824, -0.0008301778882741928, -0.06167387666576542, -0.13482597390637965, 0.05106024268269539, 0.236997810038185, 0.021629905842244626, 0.14971706923097372, -0.43530079144239425, -0.25185797943174837, 0.06631133366376162, 0.20217557037994266, 0.1730046866647899, 0.04101675899606198, -0.3176716772764921, 0.058103174299933016, -0.161903504088521, -0.19230835350602865, -0.1054597940677777, 0.04247075541922823, -0.09154466880392283, -0.2724406682997942, 0.05317871954478323, 0.01942803854495287, 0.05882773384451866, -0.060482857364229856, -0.21949383983761073, 0.011475181937217712, 0.05988614100590348, 0.035516667556017636, 0.06698725668340921, 0.18188158394768833, -0.1360477261263877, -0.051796584950760005, 0.412798751860857, -0.029701250230195, -0.15558553316816687, 0.158297070695553, -0.08092608664743603, -0.10657741242647172, 0.1781356289833784, 0.1488427037075162, 0.08193618108518422, -0.1956206316240132, 0.12843207059707493, -0.041213751900941134, 0.18762559969630094, 0.05381712430715561, 0.02066021228954196, 0.11523709138622508, 0.18332229462452232, 0.01041438114270568, 0.08158091595815495, -0.032145802913233636, -0.17661006619781255, -0.3399053191617131, -0.026691080280113966, -0.11964893158525229, 0.06310161812324076, -0.0801928168234881, -0.07603779014199973, 0.3093834610842168, 0.1554278239812702, 0.20392572965472935, 0.00015516775287687778, 0.2788560932939872, 0.13573044483643026, 0.07656707056611776, 0.050996967889368534, 0.28846631457656624, 0.21915719044953585, 0.05482846632227301, -0.296265291555319, -0.012874506446532905, 0.015766357712447644] |
712.1614 | Point contact spectroscopy of Pr$_{2-x}$Ce$_x$CuO$_4$ in high magnetic
fields | We have studied the density of states of the normal state of the
electron-doped superconductor Pr$_{2-x}$Ce$_x$CuO$_4$ at low temperatures and
in magnetic fields up to 31 Tesla using point contact spectroscopy on single
crystals. Our data clearly reveal an anomalous gap in the normal state density
of states. This normal state gap survives even in the highest applied field of
31 T. Our results cast doubt over whether this gap found in electron-doped
cuprates is the analog of the pseudogap in hole-doped cuprates. We have
suggested an alternate origin of the normal state gap, which involves the
effect of disorder and electron correlations at the surface of cuprates.
| cond-mat.supr-con | we have studied the density of states of the normal state of the electrondoped superconductor pr_2xce_xcuo_4 at low temperatures and in magnetic fields up to 31 tesla using point contact spectroscopy on single crystals our data clearly reveal an anomalous gap in the normal state density of states this normal state gap survives even in the highest applied field of 31 t our results cast doubt over whether this gap found in electrondoped cuprates is the analog of the pseudogap in holedoped cuprates we have suggested an alternate origin of the normal state gap which involves the effect of disorder and electron correlations at the surface of cuprates | [['we', 'have', 'studied', 'the', 'density', 'of', 'states', 'of', 'the', 'normal', 'state', 'of', 'the', 'electrondoped', 'superconductor', 'pr_2xce_xcuo_4', 'at', 'low', 'temperatures', 'and', 'in', 'magnetic', 'fields', 'up', 'to', '31', 'tesla', 'using', 'point', 'contact', 'spectroscopy', 'on', 'single', 'crystals', 'our', 'data', 'clearly', 'reveal', 'an', 'anomalous', 'gap', 'in', 'the', 'normal', 'state', 'density', 'of', 'states', 'this', 'normal', 'state', 'gap', 'survives', 'even', 'in', 'the', 'highest', 'applied', 'field', 'of', '31', 't', 'our', 'results', 'cast', 'doubt', 'over', 'whether', 'this', 'gap', 'found', 'in', 'electrondoped', 'cuprates', 'is', 'the', 'analog', 'of', 'the', 'pseudogap', 'in', 'holedoped', 'cuprates', 'we', 'have', 'suggested', 'an', 'alternate', 'origin', 'of', 'the', 'normal', 'state', 'gap', 'which', 'involves', 'the', 'effect', 'of', 'disorder', 'and', 'electron', 'correlations', 'at', 'the', 'surface', 'of', 'cuprates']] | [-0.16567913507525292, 0.1746643030440922, -0.08491108264705097, 0.05222326977053416, -0.0009200607741217094, -0.1097169716635512, 0.14049364243530565, 0.3455225443101005, -0.22721516039153491, -0.29050310276862645, -0.005719340597150019, -0.33281788216144953, -0.07348339354912578, 0.16232971607328014, 0.025246382708212844, 0.020063203875906765, -0.05463009369042185, 0.03866434595666188, -0.16069488394013778, -0.2567619706939392, 0.362602319602889, 0.009682499307759659, 0.3590764931265127, 0.0782801219686883, 0.03752226334742132, -0.01164799291830234, 0.1415650662879839, 0.011104073358216771, -0.11962300902491228, 0.012498620693804696, 0.3164109150616073, -0.07274834098104664, 0.20246447267493717, -0.426493372750917, -0.24020923303302238, -0.012095830584358837, 0.12939760504566408, 0.10260121535867694, -0.06900738694174732, -0.2846991739201325, 0.035831316434605805, -0.12952288883496765, -0.14422669690059223, -0.05635589897563612, -0.03723562649274417, -0.0798354395923929, -0.18304408379588966, 0.14965675764337735, 0.06423085051506792, 0.10097273834118689, -0.11562365717987565, -0.16901548098151883, -0.03702565003186464, 0.05466111056092712, 0.06589567272587576, 0.07036003073315239, 0.08928997741680143, -0.16410158234389705, -0.11653586915970125, 0.2868773212690872, -0.07250162749551237, -0.04375098924652708, 0.16685387619805556, -0.2420966129672403, -0.08643951156625042, 0.16690603674699864, 0.08137447671982011, 0.09705905720626039, -0.10224489682824006, 0.08936260408572033, -0.07108026780231201, 0.18270803924301784, 0.03582872805849614, 0.07183306680612818, 0.25374772758395586, 0.21478495432960767, 0.029552720030079836, 0.12255426997931122, -0.1760169864838072, -0.023660922293654747, -0.2365753011415816, -0.20450873026425984, -0.22767793294904684, 0.06196955633694651, -0.030716263253351726, -0.1818695152954509, 0.3999358811243265, 0.1614048066807704, 0.2112598940730095, -0.10220012682623712, 0.1688910264066955, 0.12433407250015686, 0.07489550576752259, 0.0890876343689376, 0.27813122456643247, 0.15822565707343597, 0.11648497421238399, -0.3063404516293236, 0.07676704264573615, -0.05166183683279626] |
712.1615 | Staggered sheaves on partial flag varieties | Staggered $t$-structures are a class of $t$-structures on derived categories
of equivariant coherent sheaves. In this note, we show that the derived
category of coherent sheaves on a partial flag variety, equivariant for a Borel
subgroup, admits an artinian staggered $t$-structure. As a consequence, we
obtain a basis for its equivariant $K$-theory consisting of simple staggered
sheaves.
| math.RT | staggered tstructures are a class of tstructures on derived categories of equivariant coherent sheaves in this note we show that the derived category of coherent sheaves on a partial flag variety equivariant for a borel subgroup admits an artinian staggered tstructure as a consequence we obtain a basis for its equivariant ktheory consisting of simple staggered sheaves | [['staggered', 'tstructures', 'are', 'a', 'class', 'of', 'tstructures', 'on', 'derived', 'categories', 'of', 'equivariant', 'coherent', 'sheaves', 'in', 'this', 'note', 'we', 'show', 'that', 'the', 'derived', 'category', 'of', 'coherent', 'sheaves', 'on', 'a', 'partial', 'flag', 'variety', 'equivariant', 'for', 'a', 'borel', 'subgroup', 'admits', 'an', 'artinian', 'staggered', 'tstructure', 'as', 'a', 'consequence', 'we', 'obtain', 'a', 'basis', 'for', 'its', 'equivariant', 'ktheory', 'consisting', 'of', 'simple', 'staggered', 'sheaves']] | [-0.2381313079477925, 0.022488350810722056, -0.10952513346350506, 0.12472639731825902, -0.09660753594678745, -0.11902444615241206, -0.00010013694695213384, 0.41608872826684984, -0.42816786766215637, -0.07409119668106239, 0.07693769420260205, -0.1405865768176961, -0.11992403663890927, 0.2226998661563062, -0.2726649264233154, -0.10533716606503156, 0.12986990686081218, 0.09860237104524124, -0.08131147698466584, -0.23277771994195828, 0.5575420347352823, -0.10790555094156348, 0.2994885744339084, 0.07015933393778508, 0.1591181601642778, -0.041269484409049415, 0.008829403301014713, -0.05583715503790269, -0.11740765434941543, 0.1747442097403109, 0.3618764048115465, -0.04425460317482551, 0.12010195568865656, -0.3694848509734137, -0.08688344584222425, 0.18948995455968798, 0.09515161210315694, 0.07305379067302535, -0.0344596994722164, -0.35692469059211906, 0.1085260887058419, -0.29767855479006183, -0.12132185272741736, -0.1473643709170191, 0.07985965569356554, 0.02801699194599662, -0.3057847826235127, -0.0643651144693426, 0.04628784292818684, 0.23641622944310176, -0.13486141199450286, -0.09487833835903489, -0.15400076552147143, 0.02842155915047777, -0.09251175117229618, 0.06305919884164866, 0.11196004385292008, -0.1294688787433858, -0.21991991032764577, 0.39862350188195705, -0.13983355050808505, -0.2570924856618308, 0.06382052285858152, -0.096116157738786, -0.165640333675567, 0.11377937366303645, -0.009198194002046398, 0.2325014317767662, 0.08274400092073177, 0.1733652189406648, -0.2758994724340083, 0.060024272107208766, 0.07098418917801035, 0.08202184397694573, 0.14684110341528267, 0.1350533313836837, 0.05723393680691196, 0.13014410927957087, 0.012781754413848384, -0.022978519040503, -0.3704774569916098, -0.1695640718956527, -0.027295341519148725, 0.26602473613201527, -0.07400191778556052, -0.2556262453854607, 0.46367864054219243, 0.06307032699451635, 0.13117008386669973, 0.22649150086860909, 0.2305923150525543, 0.0026952712531119844, -0.041241114509798456, -0.04186418062696854, 0.09331407192114152, 0.28959568557247783, -0.09280358830042053, -0.05014225139625763, -0.07179488086452086, 0.34375520166532514] |
712.1616 | Unambiguous comparison of ensembles of quantum states | We present a solution of the problem of the optimal unambiguous comparison of
two ensembles of unknown quantum states (psi_1)^k and (psi_2)^l. We consider
two cases: 1) The two unknown states psi_1 and psi_2 are arbitrary states of
qudits. 2) Alternatively, they are coherent states of a harmonic oscillator.
For the case of coherent states we propose a simple experimental realization of
the optimal "comparison" machine composed of a finite number of beam-splitters
and a single photodetector.
| quant-ph | we present a solution of the problem of the optimal unambiguous comparison of two ensembles of unknown quantum states psi_1k and psi_2l we consider two cases 1 the two unknown states psi_1 and psi_2 are arbitrary states of qudits 2 alternatively they are coherent states of a harmonic oscillator for the case of coherent states we propose a simple experimental realization of the optimal comparison machine composed of a finite number of beamsplitters and a single photodetector | [['we', 'present', 'a', 'solution', 'of', 'the', 'problem', 'of', 'the', 'optimal', 'unambiguous', 'comparison', 'of', 'two', 'ensembles', 'of', 'unknown', 'quantum', 'states', 'psi_1k', 'and', 'psi_2l', 'we', 'consider', 'two', 'cases', '1', 'the', 'two', 'unknown', 'states', 'psi_1', 'and', 'psi_2', 'are', 'arbitrary', 'states', 'of', 'qudits', '2', 'alternatively', 'they', 'are', 'coherent', 'states', 'of', 'a', 'harmonic', 'oscillator', 'for', 'the', 'case', 'of', 'coherent', 'states', 'we', 'propose', 'a', 'simple', 'experimental', 'realization', 'of', 'the', 'optimal', 'comparison', 'machine', 'composed', 'of', 'a', 'finite', 'number', 'of', 'beamsplitters', 'and', 'a', 'single', 'photodetector']] | [-0.21552086545154453, 0.2167355719084541, -0.04115597711255153, 0.04429356813430786, 0.017299560320874055, -0.20113583894446493, 0.07231610771889488, 0.38722761874397593, -0.20880583788578708, -0.23905159262319406, 0.07670963643118739, -0.28330362528562547, -0.11535666985437273, 0.18456895434608062, 0.0008950779835383097, 0.1263855260113875, 0.06970947193602721, 0.03340596926709016, -0.053686712069126466, -0.1891201637700821, 0.3598997054497401, -0.07595801484615852, 0.257536596270899, -0.033266507610678675, 0.16531130019575357, -0.0012133504434799155, 0.04254676315933466, -0.023835404529066486, -0.0799781801023831, 0.15590487871707107, 0.2658720824743311, 0.10114813387393952, 0.2501257777710756, -0.4205803433060646, -0.1544048000499606, 0.1060573165367047, 0.13000896730848277, 0.18249110735952853, -0.04219105818619331, -0.25858906880331534, 0.03423495954678704, -0.1873147162857155, -0.11851386617869139, -0.059620971083641054, -0.00932044863079985, 0.006483497408529122, -0.282485120271643, 0.06380725043049704, 0.05464181556676825, 0.023702763703962168, -0.07047520765413841, -0.13134353558222453, 0.04033887247865399, 0.12686401470253864, -0.09880303388616692, -0.032887900217125815, 0.08197861742849151, -0.14274520131448903, -0.20331307793656986, 0.3328888220495234, -0.04376229654997587, -0.23753015391528606, 0.16492254316806793, -0.08559207821885745, -0.0945456587150693, 0.06917047400027514, 0.14774638817335167, 0.16384472899138927, -0.06899207270393769, 0.04671211539224411, -0.07739633181442818, 0.17511884509275358, 0.07665727278838555, 0.10409268771608671, 0.16696916182835897, 0.12185352681825558, 0.07179023576745143, 0.21885904709498089, -0.08692010344937444, -0.08071186523263653, -0.366165479272604, -0.19085621639775732, -0.2224655851473411, 0.07640136448045572, -0.03690785015564567, -0.1751421366756161, 0.45996164565285047, 0.050630995680888496, 0.21341222235312066, 0.016557585758467514, 0.25847821195920306, 0.10573647617051998, -0.04291458980490764, 0.03183298969020446, 0.24036474168300628, 0.15508764485828577, -0.004446210140983264, -0.20923883825540543, -0.0026001597149297594, -0.010596935885647933] |
712.1617 | Modulational instability in Bose--Einstein condensate in optical
superlattice | We consider the Bose-Einstein condensate trapped in optical lattice, which is
formed from two kinds of deep potentials. The tight-binding approximation was
used. Steady state distribution of the probability amplitudes and the site
population in the one dimensional optical superlattice were found. It was shown
that this solution of the equations which describe the dynamics of the
Bose-Einstein condensate in superlattice is unstable at the sufficiently high
density of the bosons. The expression for increment of the modulational
instability was found on base of the linear stability analysis. Numerical
simulation demonstrates the evolution of the steady state distributions of
bosons into the space array of the solitary peaks before the chaotic regime
generation.
| nlin.PS nlin.SI | we consider the boseeinstein condensate trapped in optical lattice which is formed from two kinds of deep potentials the tightbinding approximation was used steady state distribution of the probability amplitudes and the site population in the one dimensional optical superlattice were found it was shown that this solution of the equations which describe the dynamics of the boseeinstein condensate in superlattice is unstable at the sufficiently high density of the bosons the expression for increment of the modulational instability was found on base of the linear stability analysis numerical simulation demonstrates the evolution of the steady state distributions of bosons into the space array of the solitary peaks before the chaotic regime generation | [['we', 'consider', 'the', 'boseeinstein', 'condensate', 'trapped', 'in', 'optical', 'lattice', 'which', 'is', 'formed', 'from', 'two', 'kinds', 'of', 'deep', 'potentials', 'the', 'tightbinding', 'approximation', 'was', 'used', 'steady', 'state', 'distribution', 'of', 'the', 'probability', 'amplitudes', 'and', 'the', 'site', 'population', 'in', 'the', 'one', 'dimensional', 'optical', 'superlattice', 'were', 'found', 'it', 'was', 'shown', 'that', 'this', 'solution', 'of', 'the', 'equations', 'which', 'describe', 'the', 'dynamics', 'of', 'the', 'boseeinstein', 'condensate', 'in', 'superlattice', 'is', 'unstable', 'at', 'the', 'sufficiently', 'high', 'density', 'of', 'the', 'bosons', 'the', 'expression', 'for', 'increment', 'of', 'the', 'modulational', 'instability', 'was', 'found', 'on', 'base', 'of', 'the', 'linear', 'stability', 'analysis', 'numerical', 'simulation', 'demonstrates', 'the', 'evolution', 'of', 'the', 'steady', 'state', 'distributions', 'of', 'bosons', 'into', 'the', 'space', 'array', 'of', 'the', 'solitary', 'peaks', 'before', 'the', 'chaotic', 'regime', 'generation']] | [-0.17162679181850424, 0.17598087011745808, -0.11018591333361985, 0.06457189093982653, 0.054937211673014456, -0.10145784379601215, 0.008461025815490074, 0.3331379671210209, -0.23804551891290246, -0.21818575697365852, 0.06528789147557444, -0.27385662127681804, -0.11529527544826929, 0.14008087776106806, 0.0782729214525048, 0.08809928881597862, 0.06409700224237863, 0.013591976646762507, -0.015776336660806453, -0.26142331703763816, 0.3323147075077667, 0.030017743375207982, 0.34385938916058667, 0.007083698509640134, 0.09165047113969098, -0.017312315288535524, 0.04945105713569617, -0.038826607056714146, -0.13918808733343108, 0.05075382618068726, 0.19359924007141222, 0.02017746878524138, 0.23988128644290618, -0.4412251143856386, -0.2340995501005709, 0.06535026479710256, 0.19433191218372203, 0.18144364040798253, -0.030113821344674704, -0.30215839246716514, -0.007083649720287824, -0.15394287575365959, -0.19722655348776452, -0.04776434109966576, 0.0373638576242776, 0.07976414710777786, -0.2599847005861523, 0.10539884674898554, 0.037506340623759064, 0.0383124209165705, -0.12990900915758932, -0.07007014211184814, -0.08107350901412093, 0.0512927919543818, 0.01612495901001271, 0.009887567597680388, 0.09558768804438528, -0.1479917530378505, -0.05565143181232579, 0.367640315379898, -0.10439329172806007, -0.1437627341334535, 0.17630530912758766, -0.2065389751893493, -0.05285957085784623, 0.18685755551487734, 0.1676555355367935, 0.07974031267160203, -0.11831330265684993, 0.06391560677305046, -0.0464137245960682, 0.16861685521414388, 0.09318781770823474, 0.01812890316236072, 0.25904964864979274, 0.21568058595160203, 0.009714881098309976, 0.19003670798631106, -0.1265704798454468, -0.14102724449610157, -0.26631901765126836, -0.1122527179571973, -0.20368872463200405, 0.03639375810630916, -0.05273255396753331, -0.18047157686643625, 0.4270546169399358, 0.1046978202396056, 0.1579140503107842, -0.01577855077720519, 0.25024468965614133, 0.17439160933635667, 0.025847933588928618, 0.04351886536975482, 0.29553674813359976, 0.16141317497971838, 0.1096533768958684, -0.2762713240422473, 0.015217145878112816, 0.07592705723549346] |
712.1618 | Cavity Optomechanics | The coupling of mechanical and optical degrees of freedom via radiation
pressure has been a subject of early research in the context of gravitational
wave detection. Recent experimental advances have allowed studying for the
first time the modifications of mechanical dynamics provided by radiation
pressure. This paper reviews the consequences of back-action of light confined
in whispering-gallery dielectric micro-cavities, and presents a unified
treatment of its two manifestations: notably the parametric instability
(parametric amplification) and radiation pressure back-action cooling.
Parametric instability offers a novel "photonic clock" which is driven purely
by the pressure of light. In contrast, radiation pressure cooling can surpass
existing cryogenic technologies and offers cooling to phonon occupancies below
unity and provides a route towards cavity Quantum Optomechanics
| physics.optics | the coupling of mechanical and optical degrees of freedom via radiation pressure has been a subject of early research in the context of gravitational wave detection recent experimental advances have allowed studying for the first time the modifications of mechanical dynamics provided by radiation pressure this paper reviews the consequences of backaction of light confined in whisperinggallery dielectric microcavities and presents a unified treatment of its two manifestations notably the parametric instability parametric amplification and radiation pressure backaction cooling parametric instability offers a novel photonic clock which is driven purely by the pressure of light in contrast radiation pressure cooling can surpass existing cryogenic technologies and offers cooling to phonon occupancies below unity and provides a route towards cavity quantum optomechanics | [['the', 'coupling', 'of', 'mechanical', 'and', 'optical', 'degrees', 'of', 'freedom', 'via', 'radiation', 'pressure', 'has', 'been', 'a', 'subject', 'of', 'early', 'research', 'in', 'the', 'context', 'of', 'gravitational', 'wave', 'detection', 'recent', 'experimental', 'advances', 'have', 'allowed', 'studying', 'for', 'the', 'first', 'time', 'the', 'modifications', 'of', 'mechanical', 'dynamics', 'provided', 'by', 'radiation', 'pressure', 'this', 'paper', 'reviews', 'the', 'consequences', 'of', 'backaction', 'of', 'light', 'confined', 'in', 'whisperinggallery', 'dielectric', 'microcavities', 'and', 'presents', 'a', 'unified', 'treatment', 'of', 'its', 'two', 'manifestations', 'notably', 'the', 'parametric', 'instability', 'parametric', 'amplification', 'and', 'radiation', 'pressure', 'backaction', 'cooling', 'parametric', 'instability', 'offers', 'a', 'novel', 'photonic', 'clock', 'which', 'is', 'driven', 'purely', 'by', 'the', 'pressure', 'of', 'light', 'in', 'contrast', 'radiation', 'pressure', 'cooling', 'can', 'surpass', 'existing', 'cryogenic', 'technologies', 'and', 'offers', 'cooling', 'to', 'phonon', 'occupancies', 'below', 'unity', 'and', 'provides', 'a', 'route', 'towards', 'cavity', 'quantum', 'optomechanics']] | [-0.17203653583395456, 0.2212068873172826, -0.08719661464137295, -0.08355143047823024, -0.09292030389890198, -0.13045301175607013, 0.04817271843160049, 0.34917998039894854, -0.23906984119021818, -0.2698828973076191, 0.02709961518229655, -0.25303189524195413, -0.09775366393987797, 0.25820147492422546, -0.019169069431611643, 0.09424753756068016, 0.0003134198813922395, -0.04010857818725188, -0.007252411772535483, -0.14269667076070078, 0.26161048974272266, 0.1194098496392046, 0.3130360307375908, 0.08762335473640769, 0.11191147932598045, -0.0365938281925195, 0.02340175081352311, -0.03429210118272088, -0.14984580737438577, 0.07124809795857816, 0.23187139630317688, 0.0667056613774924, 0.33837290301395595, -0.47703612973713433, -0.3039613849722034, 0.07219171176918528, 0.12852512673313213, 0.17828295332829908, -0.13624811502681536, -0.2534804136727067, -0.08004131510469885, -0.17097643382721273, -0.13304747156952776, -0.07930763851474078, -0.030478739210458333, -0.008964676798652272, -0.2280435057420453, 0.08204639918548016, 0.06500830746078787, 0.0713489952127734, -0.059082008175713525, -0.040597120956094426, 0.025344334173301036, 0.02691335140627401, 7.903287071765454e-05, 0.02191177012460414, 0.2358362406419113, -0.16908212926302274, -0.13476613363682116, 0.4197446350378662, -0.08258214408208515, -0.08356221637030493, 0.2055639758550231, -0.14959787540445643, -0.04133868951365844, 0.18729140674926278, 0.1663684191890369, 0.06572220360471535, -0.16233998963470794, 0.03918802790672803, 0.082135537223749, 0.14576909399768415, 0.12337715230297205, 0.1295977833292116, 0.27284735116399517, 0.22519683119386805, -0.02644320684177262, 0.19721200175617998, -0.06645355758080182, -0.06017148721008754, -0.2717664769796793, -0.1323196504973183, -0.12117859780449759, 0.05584328597609227, -0.032979528115045335, -0.1264396524884207, 0.37617936227008825, 0.16574760275019318, 0.08115743027715212, -0.05288062364243987, 0.38870468209228237, 0.10537036871325901, 0.055557875843980344, 0.00470144484838671, 0.40193303644345413, 0.19321142169762373, 0.09691129811877801, -0.3221755538266614, 0.01802582831472189, -0.021110187119165482] |
712.1619 | Cosmodynamics: Energy conditions, Hubble bounds, density bounds, time
and distance bounds | We refine and extend a programme initiated by one of the current authors
[Science 276 (1997) 88; Phys. Rev. D56 (1997) 7578] advocating the use of the
classical energy conditions of general relativity in a cosmological setting to
place very general bounds on various cosmological parameters. We show how the
energy conditions can be used to bound the Hubble parameter H(z), Omega
parameter Omega(z), density rho(z), distance d(z), and lookback time T(z) as
(relatively) simple functions of the redshift z, present-epoch Hubble parameter
H_0, and present-epoch Omega parameter Omega_0. We compare these results with
related observations in the literature, and confront the bounds with the recent
supernova data.
| gr-qc | we refine and extend a programme initiated by one of the current authors science 276 1997 88 phys rev d56 1997 7578 advocating the use of the classical energy conditions of general relativity in a cosmological setting to place very general bounds on various cosmological parameters we show how the energy conditions can be used to bound the hubble parameter hz omega parameter omegaz density rhoz distance dz and lookback time tz as relatively simple functions of the redshift z presentepoch hubble parameter h_0 and presentepoch omega parameter omega_0 we compare these results with related observations in the literature and confront the bounds with the recent supernova data | [['we', 'refine', 'and', 'extend', 'a', 'programme', 'initiated', 'by', 'one', 'of', 'the', 'current', 'authors', 'science', '276', '1997', '88', 'phys', 'rev', 'd56', '1997', '7578', 'advocating', 'the', 'use', 'of', 'the', 'classical', 'energy', 'conditions', 'of', 'general', 'relativity', 'in', 'a', 'cosmological', 'setting', 'to', 'place', 'very', 'general', 'bounds', 'on', 'various', 'cosmological', 'parameters', 'we', 'show', 'how', 'the', 'energy', 'conditions', 'can', 'be', 'used', 'to', 'bound', 'the', 'hubble', 'parameter', 'hz', 'omega', 'parameter', 'omegaz', 'density', 'rhoz', 'distance', 'dz', 'and', 'lookback', 'time', 'tz', 'as', 'relatively', 'simple', 'functions', 'of', 'the', 'redshift', 'z', 'presentepoch', 'hubble', 'parameter', 'h_0', 'and', 'presentepoch', 'omega', 'parameter', 'omega_0', 'we', 'compare', 'these', 'results', 'with', 'related', 'observations', 'in', 'the', 'literature', 'and', 'confront', 'the', 'bounds', 'with', 'the', 'recent', 'supernova', 'data']] | [-0.09602660486430026, 0.11702526977207407, -0.07629646125867545, 0.05945015228658079, -0.15392775735252093, -0.08897224341075276, 0.07921311645942662, 0.31371501913711985, -0.18292645498170196, -0.32397636898279747, 0.06656842094641527, -0.2249689599429475, -0.036997670394794964, 0.24638806578320252, -0.04619096921077956, 0.035317447019096844, 0.054293764589754774, -0.031812180982571894, -0.07764415726134723, -0.3078670726270876, 0.2739991681806952, 0.10340145325601519, 0.1969162812891686, -0.003446832447199621, 0.03205520743351847, -0.04293737061774341, -0.08207699254364054, -0.0064229259232633585, -0.3552562920898895, 0.03009617003116095, 0.2411009650085846, 0.14710950695639738, 0.26450886850236593, -0.3578194403916458, -0.22111275735546218, 0.13041376331211807, 0.0864409972787356, 0.07260570754340598, 0.00858661699844263, -0.3184155465373508, -0.010311510707643405, -0.19587882016741923, -0.1418226804893255, -0.017204377861153856, 0.05989778523603193, 0.036442414909670845, -0.2820256406389107, 0.1912267549729375, -0.043316123473988936, -0.012167737366649035, -0.09316887685628696, -0.14165707360452615, -0.01038220386068711, 0.03160902607977112, 0.05166889457293203, 0.1265705235554863, 0.09248023579728346, -0.08663652829878102, -0.0750836852903121, 0.3277934300408603, -0.10622852351342406, -0.1131268201099935, 0.18655135452521043, -0.19398794588241203, -0.16878860341123889, 0.009876843968354096, 0.1602444087337946, 0.11482322306555008, -0.13083409518003464, 0.20432637251312974, 0.008464717786001894, 0.16115930365511677, 0.1037641081645667, 0.028225283804102084, 0.14509268998055258, 0.09970353419291918, 0.021084019167905796, 0.040114982825025014, -0.12209291018711002, -0.04740562034118322, -0.33930433005373056, -0.09528088624747992, -0.16748041988602866, 0.06577314767185773, -0.1401092899744573, -0.06176968999250539, 0.3432597392282196, 0.1397639744774717, 0.274283954708306, 0.07425222031458795, 0.23488148077277937, 0.09209080515581697, 0.008973499194274996, 0.10068188377038062, 0.29849315044757363, 0.16357882796769319, 0.13046955091391352, -0.18150061115657337, -0.010536121416654195, 0.04900969321204123] |
712.162 | James' Conjecture for Hecke algebras of exceptional type, I | In this paper, and a second part to follow, we complete the programme
(initiated more than 15 years ago) of determining the decomposition numbers and
verifying James' Conjecture for Iwahori--Hecke algebras of exceptional type.
The new ingredients which allow us to achieve this aim are:
- the fact, recently proved by the first author, that all Hecke algebras of
finite type are cellular in the sense of Graham--Lehrer, and
- the explicit determination of $W$-graphs for the irreducible (generic)
representations of Hecke algebras of type $E_7$ and $E_8$ by Howlett and Yin.
Thus, we can reduce the problem of computing decomposition numbers to a
manageable size where standard techniques, e.g., Parker's {\sf MeatAxe} and its
variations, can be applied. In this part, we describe the theoretical
foundations for this procedure.
| math.RT | in this paper and a second part to follow we complete the programme initiated more than 15 years ago of determining the decomposition numbers and verifying james conjecture for iwahorihecke algebras of exceptional type the new ingredients which allow us to achieve this aim are the fact recently proved by the first author that all hecke algebras of finite type are cellular in the sense of grahamlehrer and the explicit determination of wgraphs for the irreducible generic representations of hecke algebras of type e_7 and e_8 by howlett and yin thus we can reduce the problem of computing decomposition numbers to a manageable size where standard techniques eg parkers sf meataxe and its variations can be applied in this part we describe the theoretical foundations for this procedure | [['in', 'this', 'paper', 'and', 'a', 'second', 'part', 'to', 'follow', 'we', 'complete', 'the', 'programme', 'initiated', 'more', 'than', '15', 'years', 'ago', 'of', 'determining', 'the', 'decomposition', 'numbers', 'and', 'verifying', 'james', 'conjecture', 'for', 'iwahorihecke', 'algebras', 'of', 'exceptional', 'type', 'the', 'new', 'ingredients', 'which', 'allow', 'us', 'to', 'achieve', 'this', 'aim', 'are', 'the', 'fact', 'recently', 'proved', 'by', 'the', 'first', 'author', 'that', 'all', 'hecke', 'algebras', 'of', 'finite', 'type', 'are', 'cellular', 'in', 'the', 'sense', 'of', 'grahamlehrer', 'and', 'the', 'explicit', 'determination', 'of', 'wgraphs', 'for', 'the', 'irreducible', 'generic', 'representations', 'of', 'hecke', 'algebras', 'of', 'type', 'e_7', 'and', 'e_8', 'by', 'howlett', 'and', 'yin', 'thus', 'we', 'can', 'reduce', 'the', 'problem', 'of', 'computing', 'decomposition', 'numbers', 'to', 'a', 'manageable', 'size', 'where', 'standard', 'techniques', 'eg', 'parkers', 'sf', 'meataxe', 'and', 'its', 'variations', 'can', 'be', 'applied', 'in', 'this', 'part', 'we', 'describe', 'the', 'theoretical', 'foundations', 'for', 'this', 'procedure']] | [-0.10475254875670122, 0.06143758378145615, -0.0803130397089119, 0.06795341595567352, -0.11601288210395283, -0.11170360891471111, 0.022679639179956197, 0.28879330527242714, -0.28313427818865755, -0.26645905949820686, 0.13671800865623074, -0.20049763464471546, -0.15786711689759428, 0.20140873628309158, -0.12998903901352893, -0.007197984674391813, 0.05487662607431664, 0.01808523710525602, -0.09265397045226019, -0.3136850962869999, 0.35666577509003067, 0.020725897141167616, 0.24020312244153222, 0.03502546797651343, 0.058928294312648885, 0.03382271669042392, -0.08150723362414855, -0.03613107625897387, -0.14522323202128443, 0.1871979712503119, 0.2967755518593334, 0.1135980299541976, 0.24823756099267913, -0.39898258416114124, -0.12525452888482727, 0.16583906443364274, 0.17628417110772288, 0.08677562382567204, -0.00746635930838639, -0.2520732746631875, 0.13137382137640488, -0.20848412275145667, -0.1711042242814002, -0.07073947947974661, 0.07904272354171267, -0.011676997716325944, -0.25568065991832356, 0.02813625552390856, 0.09209010610723589, 0.1088929656805016, -0.0646659030998859, -0.12815265125030373, 0.01584397085876329, 0.13004756141013987, -0.026163738455594054, 0.008077308363244525, 0.04961620789941576, -0.11594787570757895, -0.14945521262771355, 0.3646920694360935, -0.004924763659571937, -0.14799856814357826, 0.1508946058149706, -0.1504082665522033, -0.20686331314335424, 0.09304407768420817, 0.10953114197890121, 0.12290238088370836, -0.10481338965187241, 0.13611878421410595, -0.06070768157768203, 0.05541085245135409, 0.10784587579940659, -0.014333063430394831, 0.1434887693168258, 0.12042143200267488, 0.03902083572997587, 0.10146186293898458, 0.0016785399056971073, -0.03150852315501845, -0.32644089088430556, -0.2145440770848471, -0.12294333676466586, 0.07991600505582343, -0.040061595060681104, -0.1308835065835632, 0.4207889528314429, 0.13748050255950275, 0.1520374601222868, 0.09734614438461653, 0.20997909426425151, 0.09138086376579728, 0.10547436112317983, 0.0351656471841096, 0.18862046906449575, 0.21046042210957783, 0.05677257431304361, -0.15933698624135068, -0.0058929632146527446, 0.1926758151728748] |
712.1621 | Unique Tournaments and Radar Tracking | The sequence counting the number of unique tournaments with n people is the
same as the sequence counting non-tracking binary strings corresponding to n-2
radar observations with the tracking rule "3 out of 5 with loss 2." This fact
allows us to build a bijection between unique tournaments and non-tracking
binary strings.
| math.CO | the sequence counting the number of unique tournaments with n people is the same as the sequence counting nontracking binary strings corresponding to n2 radar observations with the tracking rule 3 out of 5 with loss 2 this fact allows us to build a bijection between unique tournaments and nontracking binary strings | [['the', 'sequence', 'counting', 'the', 'number', 'of', 'unique', 'tournaments', 'with', 'n', 'people', 'is', 'the', 'same', 'as', 'the', 'sequence', 'counting', 'nontracking', 'binary', 'strings', 'corresponding', 'to', 'n2', 'radar', 'observations', 'with', 'the', 'tracking', 'rule', '3', 'out', 'of', '5', 'with', 'loss', '2', 'this', 'fact', 'allows', 'us', 'to', 'build', 'a', 'bijection', 'between', 'unique', 'tournaments', 'and', 'nontracking', 'binary', 'strings']] | [-0.13881623313332406, 0.12033715964823316, -0.05463260821908569, 0.07910806162712666, -0.0847208262868942, -0.1433786854524022, 0.07640284873419799, 0.34613359440118074, -0.2531721224435247, -0.4068770380690694, 0.07682235538735628, -0.33825265129500903, -0.11381752059633772, 0.1251473389028643, -0.10015306290454017, 0.05512550052774783, 0.11099385706564555, 0.0873103089666424, -0.02786379472280924, -0.31026318732004327, 0.2792946404705827, 0.023661765592316024, 0.198356171281865, -0.05529666683063484, 0.10141032245547439, 0.06569457330848448, -0.0354750574960445, -0.01877589746996259, -0.07908567562341116, 0.11254854466264638, 0.2804447117064578, 0.2184152975320243, 0.19572649699134323, -0.3429720985989731, -0.09608310512983455, 0.18521315877576575, 0.13873300953911474, 0.06556026221145518, -0.00884692994161294, -0.2028050224807185, 0.09863703787470093, -0.1549642124490884, -0.12037333615052585, -0.0012298732404955304, 0.06925600235654901, 0.06561276659620209, -0.2895435827354399, -0.03655816782086801, 0.08604823676152872, 0.020837070169643715, 0.0012848521392487993, -0.10005640613739021, -0.0002603857831742901, 0.21492909351721978, 0.024938023823779076, 0.08729633652211095, 0.016805548802949488, -0.12036284391965288, -0.19939060032797548, 0.33824036560522824, -0.004850509522769313, -0.16697176037212977, 0.22147084878703865, -0.17864495457615703, -0.1637107279115858, 0.15714979028024784, 0.07464166587361923, 0.14395158551633358, -0.12820176028393548, 0.00723837299805242, -0.1188029577382482, 0.22195188978758568, 0.16906324494630098, 0.0020203380308185634, 0.2530526089338729, 0.16610257592625344, 0.09442250738636805, 0.16859694813879636, -0.11481976301337664, -0.04703309746960608, -0.2536302160185117, -0.10063420909528549, -0.15002316305449662, 0.09787885194572692, -0.14064791059774087, -0.16918840592440504, 0.31867833177630717, 0.1115938918485951, 0.2222777189185413, 0.15098442667378828, 0.19247195583123428, 0.01940758864601286, 0.054643028711255356, 0.045246569377083615, 0.10822268990943065, 0.14794120323271132, 0.04410745525875917, -0.20175496214338076, -0.039459714809289344, 0.09925750026909205] |
712.1622 | Primitive decompositions of Johnson graphs | A transitive decomposition of a graph is a partition of the edge set together
with a group of automorphisms which transitively permutes the parts. In this
paper we determine all transitive decompositions of the Johnson graphs such
that the group preserving the partition is arc-transitive and acts primitively
on the parts.
| math.CO | a transitive decomposition of a graph is a partition of the edge set together with a group of automorphisms which transitively permutes the parts in this paper we determine all transitive decompositions of the johnson graphs such that the group preserving the partition is arctransitive and acts primitively on the parts | [['a', 'transitive', 'decomposition', 'of', 'a', 'graph', 'is', 'a', 'partition', 'of', 'the', 'edge', 'set', 'together', 'with', 'a', 'group', 'of', 'automorphisms', 'which', 'transitively', 'permutes', 'the', 'parts', 'in', 'this', 'paper', 'we', 'determine', 'all', 'transitive', 'decompositions', 'of', 'the', 'johnson', 'graphs', 'such', 'that', 'the', 'group', 'preserving', 'the', 'partition', 'is', 'arctransitive', 'and', 'acts', 'primitively', 'on', 'the', 'parts']] | [-0.20665723205927541, 0.11815654023495667, -0.10409100328152086, -0.03660581637785642, -0.15229252472921623, -0.04454097882205365, 0.04831876505968645, 0.36690644372035475, -0.31608619453275905, -0.21105664077342726, 0.1458631240301674, -0.3602465507300461, -0.15716771227444576, 0.10435279458761215, -0.1283819967031698, -0.06795651498524581, 0.06537008705530681, 0.1490165105947823, -0.04153278979071069, -0.24039069617306358, 0.38685789236835405, -0.06851881245772044, 0.20036467767375357, 0.042663818663534, 0.1332147921271184, 0.03928895750740433, -0.06665938522885828, 0.06815038136133522, -0.09649624130029491, 0.08413576787593317, 0.2455181080081007, 0.07743214734592567, 0.1875300053781008, -0.35639652025465873, -0.12297465834839671, 0.2122806456013053, 0.103728216597993, 0.007048985457467828, 0.0013248623627256236, -0.24655702450842248, 0.10563586429948461, -0.16001654577021504, -0.0781113361556302, -0.011267834251710013, 0.09446334565861844, -0.024897698039079413, -0.23592749093750529, -0.09171216294863353, 0.15157091241402953, 0.048414144875006934, 0.012103206989373647, -0.09888692399231243, -0.11650536700115338, 0.20773910515594715, -0.10911945512920034, 0.06713976025782234, 0.11423870802436974, -0.08084144370228637, -0.10802459302267023, 0.4227943714781135, -0.008008289406550866, -0.23202026730366782, 0.13528742261377036, -0.11813788839122828, -0.250941665350076, 0.07465115255292724, 0.11880499453229063, 0.14154852828120484, -0.04823936333916351, 0.19334664590104356, -0.1948666168267236, 0.11715639046594209, 0.07179494833975446, -0.017719596213496783, 0.1297081738126044, 0.14201159929564477, 0.16064074440110548, 0.20688075243550189, 0.04974339857204434, 0.055871210654503574, -0.3434914613106087, -0.16007978869054248, -0.16149798485076092, 0.04885477739769746, -0.13116078183720317, -0.27635295999546844, 0.5254060191047543, 0.05312403251289153, 0.19092408556710272, 0.12070162886726286, 0.23661105773028204, 0.013223663627857105, 0.12048914042465828, 0.15326871852591342, 0.06833446407508031, 0.21317760430860752, -0.17235431716065197, -0.2052956533540661, 2.9427780057577527e-05, 0.21258121164625182] |
712.1623 | Multidomain lithium niobate microcantilever for smart biosensor | Fabrication of the bimorph lithium niobate cantilevers involves a micro
machining of a z-cut wafer to create a multidomain structure. After etching,
the bimorph ferroelectric cantilevers are fabricated at the locations near
interdomain walls. Cantilever vibrations are excited by rf voltage due to
piezoelectric effect in a ferroelectric chip, and optical detection is employed
to pickup the vibrations. The self-assembling layers of two different Silanes
are chemically deposited on the micro cantilevers. The layers are detected
independently by two methods including a low frequency shift of cantilever
natural vibrations, and Raman spectral lines from the Silane layers. Possible
applications include smart biosensors in a real time domain.
| cond-mat.mtrl-sci | fabrication of the bimorph lithium niobate cantilevers involves a micro machining of a zcut wafer to create a multidomain structure after etching the bimorph ferroelectric cantilevers are fabricated at the locations near interdomain walls cantilever vibrations are excited by rf voltage due to piezoelectric effect in a ferroelectric chip and optical detection is employed to pickup the vibrations the selfassembling layers of two different silanes are chemically deposited on the micro cantilevers the layers are detected independently by two methods including a low frequency shift of cantilever natural vibrations and raman spectral lines from the silane layers possible applications include smart biosensors in a real time domain | [['fabrication', 'of', 'the', 'bimorph', 'lithium', 'niobate', 'cantilevers', 'involves', 'a', 'micro', 'machining', 'of', 'a', 'zcut', 'wafer', 'to', 'create', 'a', 'multidomain', 'structure', 'after', 'etching', 'the', 'bimorph', 'ferroelectric', 'cantilevers', 'are', 'fabricated', 'at', 'the', 'locations', 'near', 'interdomain', 'walls', 'cantilever', 'vibrations', 'are', 'excited', 'by', 'rf', 'voltage', 'due', 'to', 'piezoelectric', 'effect', 'in', 'a', 'ferroelectric', 'chip', 'and', 'optical', 'detection', 'is', 'employed', 'to', 'pickup', 'the', 'vibrations', 'the', 'selfassembling', 'layers', 'of', 'two', 'different', 'silanes', 'are', 'chemically', 'deposited', 'on', 'the', 'micro', 'cantilevers', 'the', 'layers', 'are', 'detected', 'independently', 'by', 'two', 'methods', 'including', 'a', 'low', 'frequency', 'shift', 'of', 'cantilever', 'natural', 'vibrations', 'and', 'raman', 'spectral', 'lines', 'from', 'the', 'silane', 'layers', 'possible', 'applications', 'include', 'smart', 'biosensors', 'in', 'a', 'real', 'time', 'domain']] | [-0.1365222412326904, 0.20862703375566194, 0.022742468977964996, -0.13797766489855876, -0.06720514189904538, -0.20965756689172202, 0.034666320613681155, 0.5052574487211549, -0.2652875319662913, -0.28303714171400135, 0.06137394339986424, -0.30134744472175, -0.08112890761188954, 0.24501253251055968, -0.038831860388446354, 0.07344845445199966, 0.007697737029209357, -0.10841311215614534, 0.021708258069865625, -0.1057352754407101, 0.18960355787981895, 0.022144508286962444, 0.37008199074836534, 0.061185163889672156, 0.12046962141529352, -0.09296638419782029, 0.11592270201942492, -0.04209095917241735, -0.09396270432761897, 0.1365453197259595, 0.2717213251358159, -0.12127915724554908, 0.23671426539848966, -0.5308162353619515, -0.2161958397966679, -0.031058288322953143, 0.09603490954412966, 0.13440842696717967, -0.050526728928654896, -0.28996700571554007, 0.056406151028959274, -0.05094119008177909, -0.0773103531650224, -0.04347313661998677, -0.039087053793090805, 0.06900840038085514, -0.19994650111766532, 0.009248042714164078, 0.03792182247754987, 0.1148672385041158, -0.07657099919062908, -0.10899808430156419, -0.05981880037775524, 0.08208538775542255, -0.04746193334973792, -0.026738328728650774, 0.33911541429844416, -0.050232606217543656, -0.10782610790403648, 0.37075785726796245, -0.023515418006507593, -0.12303103950466508, 0.1733122688900923, -0.10247488446407473, -0.01372272748430477, 0.15630615352670374, 0.17108862164700142, 0.12834062331538892, -0.1931018836259903, -0.005685837615975483, 0.13090436728061916, 0.23257704981750696, 0.24560347573709823, 0.017571075960871912, 0.2481714508269922, 0.2630687037343595, 0.0236409017468028, 0.20430047623649952, -0.17982922474609983, 0.06351102470522572, -0.19461164393714656, -0.1404829649363479, -0.20164600804134786, 0.005171026216349869, -0.08157365145482706, -0.2256002793105963, 0.39213042455142205, 0.06012674203473274, 0.14757231903854304, -0.09025331442113792, 0.35664776186937486, -0.0012665569225204325, 0.1489899397836389, -0.07303725668037676, 0.27346048469298356, 0.18227624694303235, 0.18115959971464266, -0.25625057412185226, 0.0583255040441927, -0.01600547409921049] |
712.1624 | Hurst exponent and prediction based on weak-form efficient market
hypothesis of stock markets | We empirically investigated the relationships between the degree of
efficiency and the predictability in financial time-series data. The Hurst
exponent was used as the measurement of the degree of efficiency, and the hit
rate calculated from the nearest-neighbor prediction method was used for the
prediction of the directions of future price changes. We used 60 market indexes
of various countries. We empirically discovered that the relationship between
the degree of efficiency (the Hurst exponent) and the predictability (the hit
rate) is strongly positive. That is, a market index with a higher Hurst
exponent tends to have a higher hit rate. These results suggested that the
Hurst exponent is useful for predicting future price changes. Furthermore, we
also discovered that the Hurst exponent and the hit rate are useful as
standards that can distinguish emerging capital markets from mature capital
markets.
| q-fin.ST physics.soc-ph | we empirically investigated the relationships between the degree of efficiency and the predictability in financial timeseries data the hurst exponent was used as the measurement of the degree of efficiency and the hit rate calculated from the nearestneighbor prediction method was used for the prediction of the directions of future price changes we used 60 market indexes of various countries we empirically discovered that the relationship between the degree of efficiency the hurst exponent and the predictability the hit rate is strongly positive that is a market index with a higher hurst exponent tends to have a higher hit rate these results suggested that the hurst exponent is useful for predicting future price changes furthermore we also discovered that the hurst exponent and the hit rate are useful as standards that can distinguish emerging capital markets from mature capital markets | [['we', 'empirically', 'investigated', 'the', 'relationships', 'between', 'the', 'degree', 'of', 'efficiency', 'and', 'the', 'predictability', 'in', 'financial', 'timeseries', 'data', 'the', 'hurst', 'exponent', 'was', 'used', 'as', 'the', 'measurement', 'of', 'the', 'degree', 'of', 'efficiency', 'and', 'the', 'hit', 'rate', 'calculated', 'from', 'the', 'nearestneighbor', 'prediction', 'method', 'was', 'used', 'for', 'the', 'prediction', 'of', 'the', 'directions', 'of', 'future', 'price', 'changes', 'we', 'used', '60', 'market', 'indexes', 'of', 'various', 'countries', 'we', 'empirically', 'discovered', 'that', 'the', 'relationship', 'between', 'the', 'degree', 'of', 'efficiency', 'the', 'hurst', 'exponent', 'and', 'the', 'predictability', 'the', 'hit', 'rate', 'is', 'strongly', 'positive', 'that', 'is', 'a', 'market', 'index', 'with', 'a', 'higher', 'hurst', 'exponent', 'tends', 'to', 'have', 'a', 'higher', 'hit', 'rate', 'these', 'results', 'suggested', 'that', 'the', 'hurst', 'exponent', 'is', 'useful', 'for', 'predicting', 'future', 'price', 'changes', 'furthermore', 'we', 'also', 'discovered', 'that', 'the', 'hurst', 'exponent', 'and', 'the', 'hit', 'rate', 'are', 'useful', 'as', 'standards', 'that', 'can', 'distinguish', 'emerging', 'capital', 'markets', 'from', 'mature', 'capital', 'markets']] | [-0.09633843073222254, 0.10248062107213107, -0.08426505573027368, 0.11702631959342398, -0.03441136851615738, -0.13853114660430169, 0.1109617600882692, 0.396849619277886, -0.28198822659573386, -0.2714847249710666, 0.12343442318046333, -0.32836454537298, -0.16071147063214863, 0.23990796879931753, -0.09875146906290735, 0.09043151521057423, 0.02000140751312886, 0.03786738655929055, 0.03564859918094174, -0.28551487868618486, 0.24850287804313537, 0.14351801171100564, 0.3274493186867663, 0.03844546706947897, 0.0663800335830144, -0.05641349283645728, -0.07594807684820677, 0.053872286755982456, -0.20503234801669482, 0.15868235766548813, 0.22358059358916113, 0.1031512771333967, 0.3027306227146515, -0.3298381941526064, -0.19638482592999934, 0.14552062107915326, 0.10004642781901306, -0.03978712588016476, 0.006978731495993478, -0.25503274429855605, 0.08587461276828046, -0.21963726609860065, -0.13641248015753393, -0.05285716376134327, 0.08965969586528705, 0.04176760660151818, -0.30465965110010335, 0.1543318473781775, 0.015324593886699794, 0.05591490650549531, -0.047175395856278814, -0.10965598483037736, -0.0799610336386, 0.19315111116572684, 0.13450211009975258, -0.02836305939875144, 0.1539576124366639, -0.1431333209387958, -0.2025297401073788, 0.3167372579786128, -0.07204422582206982, -0.16903982053377797, 0.15677044325109038, -0.20869208948154536, -0.092426175620806, 0.11028961375289198, 0.20111280904716944, 0.0412195258241679, -0.12017299414479307, 0.027777339691030127, 0.015797239116259982, 0.21570730562239726, 0.0887008396975164, 0.0029016598161043863, 0.1492112652905884, 0.16199674055845079, 0.07276720528524103, 0.10738819001541872, -0.1642615808040968, -0.11270204591232219, -0.22979685473921044, -0.2000293511099049, -0.1963833491517497, 0.04248799763154239, -0.2246531890235409, -0.07648568329334791, 0.4350055825563946, 0.18339294162246267, 0.13535742583751145, 0.08735857570011701, 0.19934986378731473, 0.16428733702050521, 0.00889604065700301, 0.07411858250187443, 0.23553066435353165, 0.020935503406716245, 0.17450916209657277, -0.19559744499856607, 0.20772399337895747, 0.027393430364983422] |
712.1625 | Bridge Number and Conway Products | Schubert proved that, given a composite link $K$ with summands $K_{1}$ and
$K_{2}$, the bridge number of $K$ satisfies the following equation:
$$\beta(K)=\beta(K_{1})+\beta(K_{2})-1.$$ In ``Conway Produts and Links with
Multiple Bridge Surfaces", Scharlemann and Tomova proved that, given links
$K_{1}$ and $K_{2}$, there is a Conway product $K_{1}\times_{c}K_{2}$ such that
$$\beta(K_{1}\times_{c} K_{2}) \leq \beta(K_{1}) + \beta(K_{2}) - 1$$ In this
paper, we define the generalized Conway product $K_{1}\ast_{c}K_{2}$ and prove
the lower bound $\beta(K_{1}\ast_{c}K_{2}) \geq \beta(K_{1})-1$ where $K_{1}$
is the distinguished factor of the generalized product. We go on to show this
lower bound is tight for an infinite class of links with arbitrarily high
bridge number.
| math.GT | schubert proved that given a composite link k with summands k_1 and k_2 the bridge number of k satisfies the following equation betakbetak_1betak_21 in conway produts and links with multiple bridge surfaces scharlemann and tomova proved that given links k_1 and k_2 there is a conway product k_1times_ck_2 such that betak_1times_c k_2 leq betak_1 betak_2 1 in this paper we define the generalized conway product k_1ast_ck_2 and prove the lower bound betak_1ast_ck_2 geq betak_11 where k_1 is the distinguished factor of the generalized product we go on to show this lower bound is tight for an infinite class of links with arbitrarily high bridge number | [['schubert', 'proved', 'that', 'given', 'a', 'composite', 'link', 'k', 'with', 'summands', 'k_1', 'and', 'k_2', 'the', 'bridge', 'number', 'of', 'k', 'satisfies', 'the', 'following', 'equation', 'betakbetak_1betak_21', 'in', 'conway', 'produts', 'and', 'links', 'with', 'multiple', 'bridge', 'surfaces', 'scharlemann', 'and', 'tomova', 'proved', 'that', 'given', 'links', 'k_1', 'and', 'k_2', 'there', 'is', 'a', 'conway', 'product', 'k_1times_ck_2', 'such', 'that', 'betak_1times_c', 'k_2', 'leq', 'betak_1', 'betak_2', '1', 'in', 'this', 'paper', 'we', 'define', 'the', 'generalized', 'conway', 'product', 'k_1ast_ck_2', 'and', 'prove', 'the', 'lower', 'bound', 'betak_1ast_ck_2', 'geq', 'betak_11', 'where', 'k_1', 'is', 'the', 'distinguished', 'factor', 'of', 'the', 'generalized', 'product', 'we', 'go', 'on', 'to', 'show', 'this', 'lower', 'bound', 'is', 'tight', 'for', 'an', 'infinite', 'class', 'of', 'links', 'with', 'arbitrarily', 'high', 'bridge', 'number']] | [-0.2394415067974478, 0.14511376421084302, -0.041770648230643324, 0.04381995489651066, -0.07792337467253674, -0.20433864315176228, 0.07846509879770262, 0.32542358640300034, -0.30814275587908924, -0.309462961081105, 0.02827856706850677, -0.24913030331178257, -0.17730012143147178, 0.1588227804604685, -0.07356990549851616, -0.059503837779629976, 0.061637724206472434, 0.09547051913493003, -0.0383406508359864, -0.26271336255498073, 0.3141430450972014, -0.08255256385261116, 0.16423137943881252, 0.09995812018557142, 0.0929145566430331, -0.002764509554253891, -0.021506018723205973, 0.013672902171189586, -0.27663369549425926, 0.14086274554332098, 0.22987681218849806, 0.0975509802350037, 0.24341042826805884, -0.37824567975864437, -0.10185947375915323, 0.17170090864722928, 0.1379233299740008, -0.05738114561730375, 0.018943341571381705, -0.22612053526972886, 0.14028114917164203, -0.18993815362531072, -0.1234457220416516, -0.022679886479939643, 0.08515857324042979, 0.023943536332808435, -0.27240959255141206, 0.031439592096527726, 0.10525478813118146, 0.06777386602091913, 0.012748757299656669, -0.18793071745312773, -0.028340192688726045, 0.09975239716974708, 0.017818579898933724, 0.07618032650498208, -0.006238387034197028, -0.10724220180297077, -0.12171675616991706, 0.30822968527597067, -0.08782759343739599, -0.22022023944494626, 0.12664358566568504, -0.1313591453266175, -0.19444250656912723, 0.12234887670880805, 0.051662363400585797, 0.10453266856105377, -0.010134618203968179, 0.10097904717925606, -0.16961420552494624, 0.10171831343905069, 0.1803412835773391, -0.004873806188697927, 0.0868605969347603, 0.03920112198587352, 0.12665779879898764, 0.18085849041623683, 0.0004778485235874541, -0.01984839518748534, -0.32073644101971394, -0.2399661799875806, -0.19457037859441093, 0.14192207061084142, -0.13299029740467935, -0.13128220754636763, 0.28394332982134074, -0.0027788991283159703, 0.19083709022864545, 0.14641396877899146, 0.24361538693725984, 0.10275252431165427, 0.03262150660642268, 0.1543400249647675, 0.12109237495072496, 0.22823047711669156, -0.04181584430140598, -0.09407371903944295, 0.025678921859556187, 0.12502441255249627] |
712.1626 | Thermoelectric properties of LaRh$_{1-x}$Ni$_x$O$_3$ | We report measurements and analyses of resistivity, thermopower, and thermal
conductivity of polycrystalline samples of perovskite LaRh$_{1-x}$Ni$_x$O$_3$.
The thermopower is found to be large at 800 K (185 $\mu$V/K for $x=$0.3), which
is ascribed to the high-temperature stability of the low-spin state of
Rh$^{3+}$/Rh$^{4+}$ ions. This clearly contrasts with the thermopower of the
isostructural oxide LaCoO$_3$, which rapidly decreases above 500 K owing to the
spin-state transition. The spin state of the transition-metal ions is one of
the most important parameters in oxide thermoelectrics.
| cond-mat.str-el | we report measurements and analyses of resistivity thermopower and thermal conductivity of polycrystalline samples of perovskite larh_1xni_xo_3 the thermopower is found to be large at 800 k 185 muvk for x03 which is ascribed to the hightemperature stability of the lowspin state of rh3rh4 ions this clearly contrasts with the thermopower of the isostructural oxide lacoo_3 which rapidly decreases above 500 k owing to the spinstate transition the spin state of the transitionmetal ions is one of the most important parameters in oxide thermoelectrics | [['we', 'report', 'measurements', 'and', 'analyses', 'of', 'resistivity', 'thermopower', 'and', 'thermal', 'conductivity', 'of', 'polycrystalline', 'samples', 'of', 'perovskite', 'larh_1xni_xo_3', 'the', 'thermopower', 'is', 'found', 'to', 'be', 'large', 'at', '800', 'k', '185', 'muvk', 'for', 'x03', 'which', 'is', 'ascribed', 'to', 'the', 'hightemperature', 'stability', 'of', 'the', 'lowspin', 'state', 'of', 'rh3rh4', 'ions', 'this', 'clearly', 'contrasts', 'with', 'the', 'thermopower', 'of', 'the', 'isostructural', 'oxide', 'lacoo_3', 'which', 'rapidly', 'decreases', 'above', '500', 'k', 'owing', 'to', 'the', 'spinstate', 'transition', 'the', 'spin', 'state', 'of', 'the', 'transitionmetal', 'ions', 'is', 'one', 'of', 'the', 'most', 'important', 'parameters', 'in', 'oxide', 'thermoelectrics']] | [-0.12043309279308631, 0.2493901141243419, 0.01080660872365825, -0.0727605911215949, -0.0010808018467775204, -0.15836691681477355, 0.12735388246251317, 0.3456227509532033, -0.26126703982974014, -0.30424676169982046, 0.0018338962080434148, -0.4261785306763358, -0.029836018092748596, 0.19726101688404635, 0.06251327867233535, 0.010663958239403167, -0.05072249204102086, -0.034909905502345503, -0.12609791505809237, -0.22681420166954036, 0.21755454525714968, 0.07541961807235167, 0.29913868718757863, 0.10521153872832656, 0.02354868358887005, -0.10272319828977854, 0.21127707604318857, 0.011391937369253577, -0.1530094612162651, 0.020211033057421446, 0.34544935350011036, -0.1366142232152747, 0.16943038404896493, -0.3857275419471013, -0.18445235947374164, -0.01933291912995983, 0.09183393576659443, 0.10614298906999999, -0.06242809315189356, -0.21506648079673873, 0.06555504467772752, -0.08918805504444896, -0.09868938925607902, -0.0994242662450344, 0.0020328527472617966, -0.05131788987655011, -0.23723739394690932, 0.14741896836530055, 0.044702971836824604, 0.13635560442654845, -0.13709678152496585, -0.2717480060712593, -0.09038028634357743, -0.02761933466465008, 0.10490090659217591, 0.06688362970471201, 0.21130341754249501, -0.08626679610177057, -0.05956128843855567, 0.3637462742626667, -0.0389745465093633, 0.05867999630821187, 0.16463012006928826, -0.2707999573407195, -0.07376340025945044, 0.2326313257558135, 0.06641665628043616, 0.14176391040701875, -0.16359708534281064, 0.06311384675223608, 0.02710395346100374, 0.22769417513513984, 0.021868331516843018, 0.09946974042076163, 0.22139636967217596, 0.23925074971303706, -0.010149944528210454, 0.1721823976996991, -0.14972973287832447, 0.015862603683206366, -0.14164359014617597, -0.2601859345577839, -0.21125330259205727, 0.11626425754596911, -0.142934062921019, -0.19624964480583623, 0.40477749693389165, 0.19407873969275233, 0.18410017337116255, -0.09902212514099097, 0.18239188761586642, 0.09064693718711368, 0.08270085927825875, 0.020329649963348014, 0.26303421242571456, 0.22739331415150224, 0.18465310446463706, -0.33843081875522507, 0.16942723065887283, -0.06161725877716047] |
712.1627 | Extension Theorems for Spheres in the Finite Field Setting | In this paper we study the boundedness of extension operators associated with
spheres in vector spaces over finite fields.In even dimensions, we estimate the
number of incidences between spheres and points in the translated set from a
subset of spheres. As a result, we improve the Tomas-Stein exponents, our
previous results. The analytic approach and the explicit formula for Fourier
transform of the characteristic function on spheres play an important role to
get good bounds for exponential sums.
| math.CA math.CO | in this paper we study the boundedness of extension operators associated with spheres in vector spaces over finite fieldsin even dimensions we estimate the number of incidences between spheres and points in the translated set from a subset of spheres as a result we improve the tomasstein exponents our previous results the analytic approach and the explicit formula for fourier transform of the characteristic function on spheres play an important role to get good bounds for exponential sums | [['in', 'this', 'paper', 'we', 'study', 'the', 'boundedness', 'of', 'extension', 'operators', 'associated', 'with', 'spheres', 'in', 'vector', 'spaces', 'over', 'finite', 'fieldsin', 'even', 'dimensions', 'we', 'estimate', 'the', 'number', 'of', 'incidences', 'between', 'spheres', 'and', 'points', 'in', 'the', 'translated', 'set', 'from', 'a', 'subset', 'of', 'spheres', 'as', 'a', 'result', 'we', 'improve', 'the', 'tomasstein', 'exponents', 'our', 'previous', 'results', 'the', 'analytic', 'approach', 'and', 'the', 'explicit', 'formula', 'for', 'fourier', 'transform', 'of', 'the', 'characteristic', 'function', 'on', 'spheres', 'play', 'an', 'important', 'role', 'to', 'get', 'good', 'bounds', 'for', 'exponential', 'sums']] | [-0.1133744009077931, 0.051726674006017555, -0.10295942660946494, 0.08929505825896437, -0.03499817473587031, -0.05376768524113756, 0.06143898964793875, 0.3367842106008305, -0.22863729852132308, -0.25631213386375934, 0.10454126286397998, -0.29668928671461076, -0.17453031216595824, 0.25499973772690654, -0.05967018742245646, 0.05369998306895678, 0.029038655986555684, 0.04437400182135976, -0.07353977544101863, -0.2802061304354515, 0.36460805001955193, -0.025590933501147307, 0.21980560962588358, 0.06951017508235498, 0.07696034592719606, 0.07391162258453476, -0.043953715674340345, 0.001979299331418215, -0.19378297540168157, 0.17268310028773087, 0.24367542729641384, 0.05823980638972269, 0.23254837593636835, -0.40395966911306364, -0.15384424639006072, 0.18754742098136398, 0.16608312758258903, 0.021431755835715778, -0.01790582531472095, -0.24455715715885162, 0.09149432198431057, -0.13757609585538888, -0.1682228823610319, -0.09958013993664047, 0.02003088650198128, 0.046593357901423216, -0.29457200101266307, 0.04245027200653194, 0.13157503459698114, 0.10132391102468738, -0.13078568164163676, -0.13189512251828533, 0.07012193299567279, 0.14965308769844854, 0.0706144007257162, 0.044063842691218436, 0.06654743805456047, -0.09234506992073968, -0.09845646575260429, 0.33277311505606544, -0.08800133378155386, -0.2730014303651376, 0.14981549374090555, -0.15529825667349192, -0.11165623920253263, 0.10739102643819, 0.19532459469225544, 0.136840203550095, -0.030984466089508854, 0.13054266940796366, -0.10664957068048608, 0.11860115214203222, 0.11847115537294975, 0.04989981486533697, 0.13106820873247507, 0.0759959941646323, 0.11075434929285294, 0.19079897719590613, -0.01862959239933377, -0.07550405401315612, -0.35912062873681766, -0.21101279142432106, -0.18175956818203515, 0.04549558544329976, -0.16866274667532147, -0.1758857341707111, 0.3492998640315655, 0.09037102730228351, 0.25021488706652933, 0.12148263243337472, 0.25247653877028287, 0.1141321279501426, 0.03500091418241843, 0.03916015045428932, 0.1602210404518514, 0.16363529760975581, 0.0436385533076902, -0.1453221827202166, -0.00890689267991827, 0.19612907317992395] |
712.1628 | Adiabatic Quantum Transport in a Spin Chain with a Moving Potential | Many schemes to realize quantum state transfer in spin chains are not robust
to random fluctuations in the spin-spin coupling strength. In efforts to
achieve robust quantum state transfer, an adiabatic quantum population transfer
scheme is proposed in this study. The proposed scheme makes use of a slowly
moving external parabolic potential and is qualitatively explained in terms of
the adiabatic following of a quantum state with a moving separatrix structure
in the classical phase space of a pendulum analogy. Detailed aspects of our
adiabatic population transfer scheme, including its robustness, is studied
computationally. Applications of our adiabatic scheme in quantum information
transfer are also discussed, with emphasis placed on the usage of a dual spin
chain to encode quantum phases. The results should also be useful for the
control of electron tunneling in an array of quantum dots.
| quant-ph | many schemes to realize quantum state transfer in spin chains are not robust to random fluctuations in the spinspin coupling strength in efforts to achieve robust quantum state transfer an adiabatic quantum population transfer scheme is proposed in this study the proposed scheme makes use of a slowly moving external parabolic potential and is qualitatively explained in terms of the adiabatic following of a quantum state with a moving separatrix structure in the classical phase space of a pendulum analogy detailed aspects of our adiabatic population transfer scheme including its robustness is studied computationally applications of our adiabatic scheme in quantum information transfer are also discussed with emphasis placed on the usage of a dual spin chain to encode quantum phases the results should also be useful for the control of electron tunneling in an array of quantum dots | [['many', 'schemes', 'to', 'realize', 'quantum', 'state', 'transfer', 'in', 'spin', 'chains', 'are', 'not', 'robust', 'to', 'random', 'fluctuations', 'in', 'the', 'spinspin', 'coupling', 'strength', 'in', 'efforts', 'to', 'achieve', 'robust', 'quantum', 'state', 'transfer', 'an', 'adiabatic', 'quantum', 'population', 'transfer', 'scheme', 'is', 'proposed', 'in', 'this', 'study', 'the', 'proposed', 'scheme', 'makes', 'use', 'of', 'a', 'slowly', 'moving', 'external', 'parabolic', 'potential', 'and', 'is', 'qualitatively', 'explained', 'in', 'terms', 'of', 'the', 'adiabatic', 'following', 'of', 'a', 'quantum', 'state', 'with', 'a', 'moving', 'separatrix', 'structure', 'in', 'the', 'classical', 'phase', 'space', 'of', 'a', 'pendulum', 'analogy', 'detailed', 'aspects', 'of', 'our', 'adiabatic', 'population', 'transfer', 'scheme', 'including', 'its', 'robustness', 'is', 'studied', 'computationally', 'applications', 'of', 'our', 'adiabatic', 'scheme', 'in', 'quantum', 'information', 'transfer', 'are', 'also', 'discussed', 'with', 'emphasis', 'placed', 'on', 'the', 'usage', 'of', 'a', 'dual', 'spin', 'chain', 'to', 'encode', 'quantum', 'phases', 'the', 'results', 'should', 'also', 'be', 'useful', 'for', 'the', 'control', 'of', 'electron', 'tunneling', 'in', 'an', 'array', 'of', 'quantum', 'dots']] | [-0.15416398393023734, 0.16245484455147752, -0.08008655675237986, 0.04962337161280322, -0.017780746882714384, -0.17957711603706902, 0.03838649803141078, 0.4061084726302744, -0.27230574588606254, -0.2597558447863344, 0.05787813475626862, -0.21734094870672058, -0.12948904400222377, 0.24624685129726961, -0.047738752043102496, 0.08131150921376208, 0.0596920682365249, 0.025804403214547918, -0.07302279205131847, -0.21974824040226987, 0.28854169010137803, 0.05870559502463359, 0.320233113000089, 0.032811482631259686, 0.0729633777053933, 0.016491589732736133, 0.04475629952126484, -0.017474079829776366, -0.09849630167587198, 0.10715706103729258, 0.26213693583263553, 0.02520222415169366, 0.2455746286344319, -0.44296188141963033, -0.24540292265952277, 0.04969814391605717, 0.13244177185990613, 0.1923834011846443, -0.07825014442825194, -0.29138409288050676, 0.03432600576725366, -0.2151843642836048, -0.12664759109506932, -0.1142456451893228, -0.0006492748930246281, -0.003798628555905583, -0.2514969372754186, 0.046168552875341246, 0.08495874482955744, 0.018656327595210655, -0.015272264596637634, -0.026552660786044256, 0.0217791804072293, 0.13629713273613894, -0.019635799051121734, 0.02509429172207367, 0.14980966179035335, -0.12736402184153042, -0.17714304397244462, 0.3721639058894391, -0.04766206651349827, -0.21246263036243082, 0.17125230856749007, -0.08991851369700003, -0.07689743326548085, 0.1005008026635904, 0.14514996795982069, 0.11947467155995772, -0.1159673910608964, 0.09760248201033235, 0.03694703248362961, 0.16002856489193873, -0.0005244154804687705, 0.08667211006094011, 0.2193486041242002, 0.15751258682513194, 0.06544094991647444, 0.16463171376046062, -0.09225442849280541, -0.23727857871584113, -0.2579179528377039, -0.18673952241434896, -0.22346183155804014, 0.08005112620154747, -0.05182447959825969, -0.1613540720402283, 0.4044862638579191, 0.15913879644673254, 0.18259136042081944, -0.035989287198795905, 0.31176126226548295, 0.1264204693733708, 0.0005810903251278315, 0.04989017086441079, 0.2463691798172784, 0.19800555326794977, 0.08611024408802229, -0.30473564316605706, 0.03510854012004549, 0.031245486172612944] |
712.1629 | How many radio-loud quasars can be detected by the Gamma-Ray Large Area
Space Telescope? | In the unification scheme, radio quasars and FR II radio galaxies come from
the same parent population, but viewed at different angles. Based on the
Comptonization models for the gamma-ray emission from active galactic nuclei
(AGNs), we estimate the number of radio quasars and FR II radio galaxies to be
detected by the Gamma-Ray Large Area Space Telescope (GLAST) using the
luminosity function (LF) of their parent population derived from the
flat-spectrum radio quasar (FSRQ) LF. We find that ~1200 radio quasars will be
detected by GLAST, if the soft seed photons for Comptonization come from the
regions outside the jets. We also consider the synchrotron self-Comptonization
(SSC) model, and find it unlikely to be responsible for gamma-ray emission from
radio quasars. We find that no FR II radio galaxies will be detected by GLAST.
Our results show that most radio AGNs to be detected by GLAST will be FSRQs
(~99 % for the external Comptonization model, EC model), while the remainder
(~1 %) will be steep-spectrum radio quasars (SSRQs). This implies that FSRQs
will still be good candidates for identifying gamma-ray AGNs even for the GLAST
sources. The contribution of all radio quasars and FR II radio galaxies to the
extragalactic gamma-ray background (EGRB) is calculated, which accounts for ~30
% of the EGRB.
| astro-ph | in the unification scheme radio quasars and fr ii radio galaxies come from the same parent population but viewed at different angles based on the comptonization models for the gammaray emission from active galactic nuclei agns we estimate the number of radio quasars and fr ii radio galaxies to be detected by the gammaray large area space telescope glast using the luminosity function lf of their parent population derived from the flatspectrum radio quasar fsrq lf we find that 1200 radio quasars will be detected by glast if the soft seed photons for comptonization come from the regions outside the jets we also consider the synchrotron selfcomptonization ssc model and find it unlikely to be responsible for gammaray emission from radio quasars we find that no fr ii radio galaxies will be detected by glast our results show that most radio agns to be detected by glast will be fsrqs 99 for the external comptonization model ec model while the remainder 1 will be steepspectrum radio quasars ssrqs this implies that fsrqs will still be good candidates for identifying gammaray agns even for the glast sources the contribution of all radio quasars and fr ii radio galaxies to the extragalactic gammaray background egrb is calculated which accounts for 30 of the egrb | [['in', 'the', 'unification', 'scheme', 'radio', 'quasars', 'and', 'fr', 'ii', 'radio', 'galaxies', 'come', 'from', 'the', 'same', 'parent', 'population', 'but', 'viewed', 'at', 'different', 'angles', 'based', 'on', 'the', 'comptonization', 'models', 'for', 'the', 'gammaray', 'emission', 'from', 'active', 'galactic', 'nuclei', 'agns', 'we', 'estimate', 'the', 'number', 'of', 'radio', 'quasars', 'and', 'fr', 'ii', 'radio', 'galaxies', 'to', 'be', 'detected', 'by', 'the', 'gammaray', 'large', 'area', 'space', 'telescope', 'glast', 'using', 'the', 'luminosity', 'function', 'lf', 'of', 'their', 'parent', 'population', 'derived', 'from', 'the', 'flatspectrum', 'radio', 'quasar', 'fsrq', 'lf', 'we', 'find', 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712.163 | The Black Hole-Bulge Relationship in Luminous Broad-Line Active Galactic
Nuclei and Host Galaxies | We have measured the stellar velocity dispersions (\sigma_*) and estimated
the central black hole (BH) masses for over 900 broad-line active galactic
nuclei (AGNs) observed with the Sloan Digital Sky Survey. The sample includes
objects which have redshifts up to z=0.452, high quality spectra, and host
galaxy spectra dominated by an early-type (bulge) component. The AGN and host
galaxy spectral components were decomposed using an eigenspectrum technique.
The BH masses (M_BH) were estimated from the AGN broad-line widths, and the
velocity dispersions were measured from the stellar absorption spectra of the
host galaxies. The range of black hole masses covered by the sample is
approximately 10^6 < M_BH < 10^9 M_Sun. The host galaxy luminosity-velocity
dispersion relationship follows the well-known Faber-Jackson relation for
early-type galaxies, with a power-law slope 4.33+-0.21. The estimated BH masses
are correlated with both the host luminosities (L_{H}) and the stellar velocity
dispersions (\sigma_*), similar to the relationships found for low-redshift,
bulge-dominated galaxies. The intrinsic scatter in the correlations are large
(~0.4 dex), but the very large sample size allows tight constraints to be
placed on the mean relationships: M_BH ~ L_H^{0.73+-0.05} and M_BH ~
\sigma_*^{3.34+-0.24}. The amplitude of the M_BH-\sigma_* relation depends on
the estimated Eddington ratio, such that objects with larger Eddington ratios
have smaller black hole masses than expected at a given velocity dispersion.
| astro-ph | we have measured the stellar velocity dispersions sigma_ and estimated the central black hole bh masses for over 900 broadline active galactic nuclei agns observed with the sloan digital sky survey the sample includes objects which have redshifts up to z0452 high quality spectra and host galaxy spectra dominated by an earlytype bulge component the agn and host galaxy spectral components were decomposed using an eigenspectrum technique the bh masses m_bh were estimated from the agn broadline widths and the velocity dispersions were measured from the stellar absorption spectra of the host galaxies the range of black hole masses covered by the sample is approximately 106 m_bh 109 m_sun the host galaxy luminosityvelocity dispersion relationship follows the wellknown faberjackson relation for earlytype galaxies with a powerlaw slope 433021 the estimated bh masses are correlated with both the host luminosities l_h and the stellar velocity dispersions sigma_ similar to the relationships found for lowredshift bulgedominated galaxies the intrinsic scatter in the correlations are large 04 dex but the very large sample size allows tight constraints to be placed on the mean relationships m_bh l_h073005 and m_bh sigma_334024 the amplitude of the m_bhsigma_ relation depends on the estimated eddington ratio such that objects with larger eddington ratios have smaller black hole masses than expected at a given velocity dispersion | [['we', 'have', 'measured', 'the', 'stellar', 'velocity', 'dispersions', 'sigma_', 'and', 'estimated', 'the', 'central', 'black', 'hole', 'bh', 'masses', 'for', 'over', '900', 'broadline', 'active', 'galactic', 'nuclei', 'agns', 'observed', 'with', 'the', 'sloan', 'digital', 'sky', 'survey', 'the', 'sample', 'includes', 'objects', 'which', 'have', 'redshifts', 'up', 'to', 'z0452', 'high', 'quality', 'spectra', 'and', 'host', 'galaxy', 'spectra', 'dominated', 'by', 'an', 'earlytype', 'bulge', 'component', 'the', 'agn', 'and', 'host', 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712.1631 | Cayley sum graphs and eigenvalues of $(3,6)$-fullerenes | We determine the spectra of cubic plane graphs whose faces have sizes 3 and
6. Such graphs, "(3,6)-fullerenes", have been studied by chemists who are
interested in their energy spectra. In particular we prove a conjecture of
Fowler, which asserts that all their eigenvalues come in pairs of the form
$\{\lambda,-\lambda\}$ except for the four eigenvalues $\{3,-1,-1,-1\}$. We
exhibit other families of graphs which are "spectrally nearly bipartite" in
this sense. Our proof utilizes a geometric representation to recognize the
algebraic structure of these graphs, which turn out to be examples of Cayley
sum graphs.
| math.CO | we determine the spectra of cubic plane graphs whose faces have sizes 3 and 6 such graphs 36fullerenes have been studied by chemists who are interested in their energy spectra in particular we prove a conjecture of fowler which asserts that all their eigenvalues come in pairs of the form lambdalambda except for the four eigenvalues 3111 we exhibit other families of graphs which are spectrally nearly bipartite in this sense our proof utilizes a geometric representation to recognize the algebraic structure of these graphs which turn out to be examples of cayley sum graphs | [['we', 'determine', 'the', 'spectra', 'of', 'cubic', 'plane', 'graphs', 'whose', 'faces', 'have', 'sizes', '3', 'and', '6', 'such', 'graphs', '36fullerenes', 'have', 'been', 'studied', 'by', 'chemists', 'who', 'are', 'interested', 'in', 'their', 'energy', 'spectra', 'in', 'particular', 'we', 'prove', 'a', 'conjecture', 'of', 'fowler', 'which', 'asserts', 'that', 'all', 'their', 'eigenvalues', 'come', 'in', 'pairs', 'of', 'the', 'form', 'lambdalambda', 'except', 'for', 'the', 'four', 'eigenvalues', '3111', 'we', 'exhibit', 'other', 'families', 'of', 'graphs', 'which', 'are', 'spectrally', 'nearly', 'bipartite', 'in', 'this', 'sense', 'our', 'proof', 'utilizes', 'a', 'geometric', 'representation', 'to', 'recognize', 'the', 'algebraic', 'structure', 'of', 'these', 'graphs', 'which', 'turn', 'out', 'to', 'be', 'examples', 'of', 'cayley', 'sum', 'graphs']] | [-0.1331986279246655, 0.10046096888192474, -0.07326312019846383, 0.06249805451048776, -0.06759638651868606, -0.12345346907510403, -0.013730875745247256, 0.4073777260219163, -0.24002291724838792, -0.32581646536338205, 0.08902985008156046, -0.32090834061555723, -0.15592795194305004, 0.16925997109192006, -0.058846134122738494, 0.0034520901501812833, 0.0813318789971279, 0.07838154567821705, -0.0005348146511638101, -0.3018121402884061, 0.3417677115648985, -0.056575693328805424, 0.19445215671897886, 0.07305131094317209, 0.04307243788238377, -0.013584153907512254, -0.01948396999270041, 0.02698895019637619, -0.1521329156131926, 0.14579852614452707, 0.3090646303397544, 0.0989429772722515, 0.19966601260115413, -0.36655995252225154, -0.16756934814521687, 0.2118676728767125, 0.1212669224081997, 0.09643139248649452, 0.009457016009540159, -0.2508606102040156, 0.1148097564706559, -0.108222862779896, -0.13061134860494195, -0.0800638000599723, 0.026711556089526797, 0.050695650338968064, -0.20400954696580154, -0.0066268229361702785, 0.1306516612146763, 0.08103443110520218, 0.010727491311510986, -0.162402596442336, -0.04750801205506271, 0.15242126260071676, -0.02961192796244583, -0.07175049916940167, 0.020911806471091, -0.07352718838956207, -0.1529195295223233, 0.37882651236066794, 0.03532419366603519, -0.16893691234686908, 0.14470605566686495, -0.16138738312540538, -0.19896272607544002, 0.13606257877372047, 0.14408774033902175, 0.16912954886681697, -0.1225133713222099, 0.1108643289827593, -0.12039037551012564, 0.09198448287838316, 0.16838455886798018, 0.05007947230850287, 0.16487396538178337, 0.03867172127579676, 0.05496601365318403, 0.15710869903039643, 0.015394571024250793, -0.07373426750084346, -0.22917709996963434, -0.11595940888621548, -0.1964012485250157, 0.08934749657426902, -0.10896130374300249, -0.22619880425763575, 0.42049005616485996, 0.06982626464772732, 0.20759327462478044, 0.10087409354077573, 0.16195528687750724, 0.06839901305601358, 0.07388991125403567, 0.12901033425426228, 0.21967720495229784, 0.1766815267116552, 0.033279488637221064, -0.10291449878206278, 0.03457583906067079, 0.10752645528261015] |
712.1632 | Superfluid density in gapless superconductor CeCoIn5 | Temperature dependence of the London penetration depth $\lambda$ measured in
single crystals of CeCoIn$_5$ is interpreted as caused by a strong
pair-breaking scattering that makes the superconductivity in this compound
gapless. For a gapless d-wave superconductor, we derive
$\lambda=\lambda_0/\sqrt{1-(T/T_c)^2}$ caused by combined effect of magnetic
and non-magnetic scattering in excellent agreement with the data in the full
temperature range and with the gapless s-wave case of Abrikosov and Gor'kov. We
also obtain the slope of the upper critical field at $T_c$ that compares well
with the measured slope.
| cond-mat.supr-con cond-mat.str-el | temperature dependence of the london penetration depth lambda measured in single crystals of cecoin_5 is interpreted as caused by a strong pairbreaking scattering that makes the superconductivity in this compound gapless for a gapless dwave superconductor we derive lambdalambda_0sqrt1tt_c2 caused by combined effect of magnetic and nonmagnetic scattering in excellent agreement with the data in the full temperature range and with the gapless swave case of abrikosov and gorkov we also obtain the slope of the upper critical field at t_c that compares well with the measured slope | [['temperature', 'dependence', 'of', 'the', 'london', 'penetration', 'depth', 'lambda', 'measured', 'in', 'single', 'crystals', 'of', 'cecoin_5', 'is', 'interpreted', 'as', 'caused', 'by', 'a', 'strong', 'pairbreaking', 'scattering', 'that', 'makes', 'the', 'superconductivity', 'in', 'this', 'compound', 'gapless', 'for', 'a', 'gapless', 'dwave', 'superconductor', 'we', 'derive', 'lambdalambda_0sqrt1tt_c2', 'caused', 'by', 'combined', 'effect', 'of', 'magnetic', 'and', 'nonmagnetic', 'scattering', 'in', 'excellent', 'agreement', 'with', 'the', 'data', 'in', 'the', 'full', 'temperature', 'range', 'and', 'with', 'the', 'gapless', 'swave', 'case', 'of', 'abrikosov', 'and', 'gorkov', 'we', 'also', 'obtain', 'the', 'slope', 'of', 'the', 'upper', 'critical', 'field', 'at', 't_c', 'that', 'compares', 'well', 'with', 'the', 'measured', 'slope']] | [-0.17868897873351627, 0.21128380050261816, -0.056690096378797426, 0.05389655156639116, -0.050950317707811964, -0.14588590197522064, 0.1222836603035872, 0.33566536107796363, -0.21243915084653117, -0.3032970152709676, -0.03178672965123564, -0.36277307222072763, -0.0579752070700814, 0.1847856677131963, 0.04128918247618552, 0.07104764305504746, -0.08580643325059235, 0.015605449815676815, -0.11789842346554687, -0.19612963318599966, 0.3331733477012864, 0.017273419600879324, 0.35228248450091515, 0.11759493664849079, -0.004751532487089521, 0.06372445576620855, 0.10777841054502575, 0.06412611994892359, -0.1820722215753062, 0.012968550329819193, 0.2696624879093691, -0.1206300849758688, 0.10984365068290425, -0.39485074892297556, -0.22053822696251774, 0.012962608523238665, 0.17055901065040593, 0.1079757875152703, -0.05089066216144068, -0.3016612107314212, 0.035178984001535796, -0.1253681819158039, -0.16793915290979605, -0.0489297605537135, 0.0003494934975731604, -0.03637637327500116, -0.26485528090390664, 0.1564802840247017, 0.030764123929354053, 0.14819415698019284, -0.1305271152984993, -0.15735455090715283, -0.05681540921662302, -0.00681174951659023, 0.09583877000004995, 0.09291146160371003, 0.09607422257768226, -0.16724299201367146, -0.0638725139045467, 0.3313906090227009, -0.13845038618464237, -0.024430194219317417, 0.1085572564845969, -0.1700003943673667, -0.0286066349831292, 0.1723433574019321, 0.06795441566955769, 0.023018892238922846, -0.09586730258988924, 0.0855925082819183, -0.06829286947573439, 0.1801202773790935, 0.03664029217271627, 0.09119174330709061, 0.22882981562515955, 0.23137355691903197, -0.010244572117667773, 0.16440519452062918, -0.16642194117376602, -0.006158261377921049, -0.2834002963085284, -0.1361837844851416, -0.20582267349778577, 0.016421883720262296, -0.06821242385846964, -0.17935419697100405, 0.32796832852750674, 0.19026593882162338, 0.23259353134567026, -0.01412465232799108, 0.23054493424193612, 0.1679883735968956, 0.08400843685343005, 0.071487780012747, 0.27276898718214243, 0.19313270016840992, 0.14132086421502218, -0.3510397614030724, 0.07370568071652589, -0.015856253497045617] |
712.1633 | Strong lensing probability in TeVeS theory | We recalculate the strong lensing probability as a function of the image
separation in TeVeS (tensor-vector-scalar) cosmology, which is a relativistic
version of MOND (MOdified Newtonian Dynamics). The lens is modeled by the
Hernquist profile. We assume an open cosmology with $\Omega_b=0.04$ and
$\Omega_\Lambda=0.5$ and three different kinds of interpolating functions. Two
different galaxy stellar mass functions (GSMF) are adopted: PHJ
(Panter-Heavens-Jimenez, 2004) determined from SDSS data release one and
Fontana (Fontana et al., 2006) from GOODS-MUSIC catalog. We compare our results
with both the predicted probabilities for lenses by Singular Isothermal Sphere
(SIS) galaxy halos in LCDM (lambda cold dark matter) with Schechter-fit
velocity function, and the observational results of the well defined combined
sample of Cosmic Lens All-Sky Survey (CLASS) and Jodrell Bank/Very Large Array
Astrometric Survey (JVAS). It turns out that the interpolating function
$\mu(x)=x/(1+x)$ combined with Fontana GSMF matches the results from CLASS/JVAS
quite well.
| astro-ph | we recalculate the strong lensing probability as a function of the image separation in teves tensorvectorscalar cosmology which is a relativistic version of mond modified newtonian dynamics the lens is modeled by the hernquist profile we assume an open cosmology with omega_b004 and omega_lambda05 and three different kinds of interpolating functions two different galaxy stellar mass functions gsmf are adopted phj panterheavensjimenez 2004 determined from sdss data release one and fontana fontana et al 2006 from goodsmusic catalog we compare our results with both the predicted probabilities for lenses by singular isothermal sphere sis galaxy halos in lcdm lambda cold dark matter with schechterfit velocity function and the observational results of the well defined combined sample of cosmic lens allsky survey class and jodrell bankvery large array astrometric survey jvas it turns out that the interpolating function muxx1x combined with fontana gsmf matches the results from classjvas quite well | [['we', 'recalculate', 'the', 'strong', 'lensing', 'probability', 'as', 'a', 'function', 'of', 'the', 'image', 'separation', 'in', 'teves', 'tensorvectorscalar', 'cosmology', 'which', 'is', 'a', 'relativistic', 'version', 'of', 'mond', 'modified', 'newtonian', 'dynamics', 'the', 'lens', 'is', 'modeled', 'by', 'the', 'hernquist', 'profile', 'we', 'assume', 'an', 'open', 'cosmology', 'with', 'omega_b004', 'and', 'omega_lambda05', 'and', 'three', 'different', 'kinds', 'of', 'interpolating', 'functions', 'two', 'different', 'galaxy', 'stellar', 'mass', 'functions', 'gsmf', 'are', 'adopted', 'phj', 'panterheavensjimenez', '2004', 'determined', 'from', 'sdss', 'data', 'release', 'one', 'and', 'fontana', 'fontana', 'et', 'al', '2006', 'from', 'goodsmusic', 'catalog', 'we', 'compare', 'our', 'results', 'with', 'both', 'the', 'predicted', 'probabilities', 'for', 'lenses', 'by', 'singular', 'isothermal', 'sphere', 'sis', 'galaxy', 'halos', 'in', 'lcdm', 'lambda', 'cold', 'dark', 'matter', 'with', 'schechterfit', 'velocity', 'function', 'and', 'the', 'observational', 'results', 'of', 'the', 'well', 'defined', 'combined', 'sample', 'of', 'cosmic', 'lens', 'allsky', 'survey', 'class', 'and', 'jodrell', 'bankvery', 'large', 'array', 'astrometric', 'survey', 'jvas', 'it', 'turns', 'out', 'that', 'the', 'interpolating', 'function', 'muxx1x', 'combined', 'with', 'fontana', 'gsmf', 'matches', 'the', 'results', 'from', 'classjvas', 'quite', 'well']] | [-0.06441531198355041, 0.023343918901727975, -0.12751472986985365, 0.15117998574868594, -0.12408010693739208, -0.08374087079952826, -0.03154728928266067, 0.35149079145417667, -0.15772146334573234, -0.38509618723765016, 0.028893783709860708, -0.30607182289552415, -0.0737443412785274, 0.20919673985631113, -0.019435199476043944, 0.0692324535199769, 0.049652725752462754, -0.1273955382352603, -0.037824510535205594, -0.30316305437131824, 0.32096506894625965, 0.0979470786520503, 0.19818557627067876, -0.08187748508488524, 0.11542409061024647, -0.014062892256999835, -0.14081861458482667, 0.0391514920006493, -0.23247311473029877, -0.01979172057398385, 0.21892468733581857, 0.15221928622127628, 0.18284504201991195, -0.3025815106833966, -0.190835265324674, 0.06430905922578359, 0.11837747812756455, 0.08588013720852782, -0.05361897909266113, -0.358106995224428, 0.015991493364350056, -0.2245614200004075, -0.15530669245160592, 0.03634958851321692, 0.012303538817230245, 0.09519569486589499, -0.21414299157667827, 0.1422129879233388, -0.018183958610113134, 0.03586071592257161, -0.10763655721314881, -0.15402064229686363, -0.04236400992655471, 0.03856193880930963, 0.005019099527025517, 0.12027377022994341, 0.1582352292123841, -0.1379568521851595, -0.022535478446999907, 0.4066910330602952, -0.11755922811210785, -0.08287479932658526, 0.16022423661517268, -0.167454442753732, -0.171579897177445, 0.037007010402485836, 0.11540846020134139, 0.07306114798100193, -0.17048803940874485, 0.10073977913240194, -0.05909547058153819, 0.19355140142651064, 0.10747817314466016, -0.04514297752450122, 0.3110475179240842, 0.0690800315523389, 0.025419943651158204, 0.08278402003203847, -0.16669835256655294, -0.0794526934021146, -0.26633530695312724, -0.04165603255264422, -0.1803541457014893, 0.07350647791524903, -0.12185786793639303, -0.13284374410155372, 0.31875526654848857, 0.0786430678612382, 0.19290746656954813, 0.10415745087863196, 0.3037393634670441, 0.03923900793044185, 0.05055694734598969, 0.06707889321883222, 0.3022144145568387, 0.1508624459843112, 0.08478523968328709, -0.18263693823000338, -0.026474697884905127, 0.044335499661646675] |
712.1634 | Quantum Observables and a Model of Noncommutativity | This paper considers a generalization of the notion of quantum observables in
ontological models of quantum mechanics. Within this framework it is possible
to construct physical models where quantum noncommutativity can arise
dynamically. Unlike quantum systems, the basic entities in this model have
definite properties. Relations with no-go theorems and other hidden variable
theories are also discussed.
| quant-ph | this paper considers a generalization of the notion of quantum observables in ontological models of quantum mechanics within this framework it is possible to construct physical models where quantum noncommutativity can arise dynamically unlike quantum systems the basic entities in this model have definite properties relations with nogo theorems and other hidden variable theories are also discussed | [['this', 'paper', 'considers', 'a', 'generalization', 'of', 'the', 'notion', 'of', 'quantum', 'observables', 'in', 'ontological', 'models', 'of', 'quantum', 'mechanics', 'within', 'this', 'framework', 'it', 'is', 'possible', 'to', 'construct', 'physical', 'models', 'where', 'quantum', 'noncommutativity', 'can', 'arise', 'dynamically', 'unlike', 'quantum', 'systems', 'the', 'basic', 'entities', 'in', 'this', 'model', 'have', 'definite', 'properties', 'relations', 'with', 'nogo', 'theorems', 'and', 'other', 'hidden', 'variable', 'theories', 'are', 'also', 'discussed']] | [-0.1098061659487716, 0.17951341189051928, -0.10810231685377004, 0.11607383128271945, -0.06758496938926871, -0.21075266530214434, 0.017105318673298155, 0.29961089080755127, -0.2985492493107654, -0.28854206668441756, 0.025584580380829017, -0.2515637435063949, -0.21443013673680916, 0.14978922514261253, -0.12399281952285061, 0.09397997251270633, -0.0010056007784186747, 0.0408503227997898, -0.08655127012191274, -0.2305978640235895, 0.36307342249181185, 0.015593797189036482, 0.25396921867994887, 0.009751052571166503, 0.08623079472760621, -0.002864526298812084, -0.01377580150667774, 0.002829576613740963, -0.11702991602125398, 0.14162068644113707, 0.2899495631579173, 0.16491052495282993, 0.24906094764408312, -0.41090754290895637, -0.29185744902739924, 0.11190160439071949, 0.09586165478583752, 0.1608602923862922, 0.032002207185877, -0.3013065465840331, 0.06262115785737701, -0.20716551514832596, -0.12007044257367389, -0.11574245229151034, -0.00970604032147349, -0.0514005840870372, -0.15384668190228312, 0.10135760210534117, 0.10696246599157651, 0.03846959977358653, -0.03857897506340554, -0.0515798273508584, 0.05464654352532275, 0.08056061507382414, 0.012529131002609798, -0.03729915368909899, 0.11988757684696139, -0.1303249007139943, -0.25289269696855754, 0.4220252571660176, 0.04083307796533693, -0.2841439857556109, 0.195111315787296, -0.07247750221735291, -0.24161840579064006, -0.052814791730621403, 0.13186465540345302, 0.12636859504620365, -0.1772013317074692, 0.16303201771255485, -0.08610582590233862, 0.1380022744251938, 0.020533210985983413, 0.15730390047425763, 0.2777384365336937, 0.10468024972891599, -0.020826657837779636, 0.13279496071341432, 0.01791315707949954, -0.2605204508045541, -0.37932278281241133, -0.16898361147430382, -0.12361313915697106, 0.07194527222676889, -0.08550707803882879, -0.17736094386169785, 0.33606348578867157, 0.23640206806655778, 0.16100677029278718, 0.012430058734281104, 0.2561405171362454, 0.13522002787182205, 0.07667456588528135, 0.021154267574546106, 0.23840783147566152, 0.20140340391611844, 0.07787866937813528, -0.11636356636269116, 0.04547591434777388, 0.08689262096672073] |
712.1635 | Massive-Star Forming Infrared Loop around the Crab-like Supernova
Remnant G54.1+0.3: Post Main-Sequence Triggered Star Formation? | We report the discovery of a star-forming loop around the young, Crab-like
supernova remnant (SNR) G54.1+0.3 using the AKARI infrared satellite. The loop
consists of at least eleven young stellar objects (YSOs) embedded in a
ring-like diffuse emission of radius ~1'. The YSOs are bright in the
mid-infrared and are also visible in the Spitzer Space Telescope Galactic plane
survey images. Their Spitzer colors are similar to those of class II YSOs in
[3.6]-[5.8] but significantly redder in [8]-[24], i.e., 0<[3.6]-[5.8]<1.2 and
5<[8]-[24]<9. Most of them have near-infrared counterparts in the 2MASS JHKs
images, and some of them have an optical counterpart too. Their JHKs colors and
magnitudes indicate that the YSOs are massive (<= 10 Msun) pre-main-sequence
stars at the same distance to the SNR, i.e., 8 kpc, which supports the
association of the star-forming loop with the SNR. The dereddened spectral
energy distributions are similar to eraly Herbig Be stars, which are early
B-type pre-main-sequence stars with inner disks that have been destroyed. The
confinement to a loop structure indicates that the YSOs are young, i.e., <= 2
Myr. We propose that their formation is triggered by the progenitor star of
G54.1+0.3, which has a mass of <= 15 Msun. The triggering must have occurred
near the end of the progenitor's life, possibly after it had evolved off the
main sequence.
| astro-ph | we report the discovery of a starforming loop around the young crablike supernova remnant snr g54103 using the akari infrared satellite the loop consists of at least eleven young stellar objects ysos embedded in a ringlike diffuse emission of radius 1 the ysos are bright in the midinfrared and are also visible in the spitzer space telescope galactic plane survey images their spitzer colors are similar to those of class ii ysos in 3658 but significantly redder in 824 ie 0365812 and 58249 most of them have nearinfrared counterparts in the 2mass jhks images and some of them have an optical counterpart too their jhks colors and magnitudes indicate that the ysos are massive 10 msun premainsequence stars at the same distance to the snr ie 8 kpc which supports the association of the starforming loop with the snr the dereddened spectral energy distributions are similar to eraly herbig be stars which are early btype premainsequence stars with inner disks that have been destroyed the confinement to a loop structure indicates that the ysos are young ie 2 myr we propose that their formation is triggered by the progenitor star of g54103 which has a mass of 15 msun the triggering must have occurred near the end of the progenitors life possibly after it had evolved off the main sequence | [['we', 'report', 'the', 'discovery', 'of', 'a', 'starforming', 'loop', 'around', 'the', 'young', 'crablike', 'supernova', 'remnant', 'snr', 'g54103', 'using', 'the', 'akari', 'infrared', 'satellite', 'the', 'loop', 'consists', 'of', 'at', 'least', 'eleven', 'young', 'stellar', 'objects', 'ysos', 'embedded', 'in', 'a', 'ringlike', 'diffuse', 'emission', 'of', 'radius', '1', 'the', 'ysos', 'are', 'bright', 'in', 'the', 'midinfrared', 'and', 'are', 'also', 'visible', 'in', 'the', 'spitzer', 'space', 'telescope', 'galactic', 'plane', 'survey', 'images', 'their', 'spitzer', 'colors', 'are', 'similar', 'to', 'those', 'of', 'class', 'ii', 'ysos', 'in', '3658', 'but', 'significantly', 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'progenitor', 'star', 'of', 'g54103', 'which', 'has', 'a', 'mass', 'of', '15', 'msun', 'the', 'triggering', 'must', 'have', 'occurred', 'near', 'the', 'end', 'of', 'the', 'progenitors', 'life', 'possibly', 'after', 'it', 'had', 'evolved', 'off', 'the', 'main', 'sequence']] | [-0.05714946343941176, 0.1418923575797656, -0.0799691669110741, 0.11206816561135982, -0.1224326638028472, -0.04931381922687322, 0.05269593218060356, 0.5073936887360113, -0.11891852745685452, -0.3620032619895233, 0.07661957831780773, -0.286989989390056, -0.023531208089488442, 0.14317865846227976, -0.09694899110743682, -0.07821051819219944, 0.10407036146007409, -0.0710588022766094, -0.015335122978503597, -0.3063441429202432, 0.3139950952660035, 0.045602656690584074, 0.0861761344656829, -0.09042939794312063, 0.024210247794844313, -0.18936937849663954, -0.0874207403622396, -0.07303896345305987, -0.1157143938357562, 0.03772974663847534, 0.23487933505787073, 0.13659286655567174, 0.21088919763652875, -0.31436644021147, 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712.1636 | A Problem of the QCD Axion in Supergravity | This paper has been withdrawn by the authors due to a crucial error in
equation 12.
| hep-ph | this paper has been withdrawn by the authors due to a crucial error in equation 12 | [['this', 'paper', 'has', 'been', 'withdrawn', 'by', 'the', 'authors', 'due', 'to', 'a', 'crucial', 'error', 'in', 'equation', '12']] | [-0.10165548080112785, -0.01834614935796708, -0.10275018541142344, -0.0012783557540387847, -0.06655052921269089, -0.08136268865200691, 0.028364875419356395, 0.2926569450646639, -0.23770122503628954, -0.37727520638145506, 0.13074495133332675, -0.28598516737110913, -0.16456512932199985, 0.08928999002091587, -0.26697715668706223, 0.15934705641120672, 0.03655571583658457, -0.03360220085596666, -0.028325843857601285, -0.3289918028458487, 0.3172064363025129, 0.13706821901723742, 0.24293400486931205, 0.1675222558551468, 0.07153468544129282, -0.07593490745057352, -0.08631682919804007, -0.030745483236387372, -0.18446780246449634, 0.08954663551412523, 0.22923874389380217, -0.04289487512141932, 0.4932630341500044, -0.38123356824507937, -0.23328269238118082, 0.15620215295348316, 0.25383502326440066, 0.18130086129531264, -0.1043016740004532, -0.344033335451968, 0.17933349875966087, -0.2821256590541452, -0.14151286488049664, 0.02556644123978913, 0.1376930420519784, -0.06869820778956637, -0.14286465800614678, 0.12261183554073796, 0.14227625692728907, 0.10739116417244077, -0.005482082371599972, -0.15471799531951547, 0.08765641844365746, 0.15304688233300112, 0.166970940772444, 0.16480622711242177, -0.06331961776595563, -0.08103247264807578, -0.08493252366315573, 0.38084251282271, 0.018251902773045003, -0.271299421438016, 0.08046272397041321, -0.06777297533699311, -0.14029850385850295, 0.18717156327329576, 0.17593430465785787, 0.05245705012930557, -0.2846934348344803, 0.195259713975247, 0.00782647478627041, 0.20405887067317963, 0.12620379182044417, -0.05342688364908099, 0.09102870966307819, 0.17823779280297458, 0.011577159602893516, 0.14798281766707078, -0.03622638469096273, -0.017885634675621986, -0.19950331188738346, -0.19920755177736282, -0.24218749577994458, 0.11607669066870585, 0.15181353548541665, -0.05477499443804845, 0.4038196294568479, 0.2180868275463581, 0.13014111199299805, -0.12393935490399599, 0.2900978750549257, 0.1837610046422924, 0.09021723084151745, 0.04166056518442929, 0.32158970227465034, 0.19113664190808777, 0.1947818094631657, -0.08792979805730283, 0.2008788834209554, 0.14779330695455428] |
712.1637 | Disproof of ''Disproof of Bell's Theorem by Clifford Algebra Valued
Local Variables'' | Key mathematical and conceptual errors are pointed out regarding the paper
''Disproof of Bell's Theorem by Clifford Algebra Valued Local Variables'' by
Joy Christian.
| quant-ph | key mathematical and conceptual errors are pointed out regarding the paper disproof of bells theorem by clifford algebra valued local variables by joy christian | [['key', 'mathematical', 'and', 'conceptual', 'errors', 'are', 'pointed', 'out', 'regarding', 'the', 'paper', 'disproof', 'of', 'bells', 'theorem', 'by', 'clifford', 'algebra', 'valued', 'local', 'variables', 'by', 'joy', 'christian']] | [-0.09042645367359607, 0.03057614783756435, -0.11463006174502273, 0.13960011342229942, -0.15335714700631797, -0.21973263619778058, 0.111120265214898, 0.2249372681059564, -0.2564968866257307, -0.2849017179881533, 0.11669209527705486, -0.19873250762854391, -0.20390139473602176, 0.19746025973775735, -0.2955722449890648, 0.03316485551962008, 0.05467136770797273, -0.036798670034234725, -0.03981106144298489, -0.35170874868830043, 0.3583737457035265, 0.06862680753692985, 0.21933998124829182, 0.024244849492485326, 0.09880651735390227, 0.11202482494021145, -0.21903784673971435, -0.017462585509444278, -0.04632440876836578, 0.12177241158982118, 0.31274254301873344, 0.19242506202620765, 0.3846304666561385, -0.4207361688216527, -0.08104525611270219, 0.0940014174557291, 0.06917991851999734, -0.00033190404064953327, 0.05130750122286069, -0.44443176686763763, 0.0008914395972775916, -0.12756337753186622, -0.1563708164030686, -0.1575508440922325, 0.0750624481588602, -0.0374765224987641, -0.12024277941479038, 0.12819383130408823, 0.19734536559553817, 0.24639054636160532, 0.0433109772275202, -0.18466286566884568, -0.020992513551997643, 0.017737580308069784, 0.03024596596757571, 0.042166104986487575, 0.16547873980986574, 0.020085748760417726, -0.26333802034302306, 0.31837158945078653, 0.12517898242610195, -0.2232120596745517, 0.03885888398508541, -0.09008546165811519, -0.23146092796620601, -0.005859398089038829, -0.01864456600257351, -0.007431495934724808, -0.16425090248230845, 0.11454989729827503, -0.17771854088641703, 0.10755251999944448, 0.15288994315778837, 0.02614302816800773, 0.2257756571052596, -0.004077473267291983, -0.05120854285390427, 0.05736465678395083, 0.09285688260570168, -0.15315045835450292, -0.41615458430411917, -0.23332756936239699, -0.1308530035894364, 0.17137090031368038, -0.07770597038264289, -0.07912339087730895, 0.3625138724843661, 0.15525408021251982, 0.014359909226186574, 0.03933668644943585, 0.22110187962728864, 0.05441427603363991, 0.02647192302780847, 0.025321155320852995, 0.19906244690840444, 0.3218674465897493, 0.12257308293677245, -0.03629998893787464, 0.05193480548526471, 0.1689156275630618] |
712.1638 | Time Dependent Inelastic Emission and Capture of Localized Electrons in
Si n-MOSFETs Under Microwave Irradiation | Microwave irradiation causes voltage fluctuations in solid state nanodevices.
Such an effect is relevant in atomic electronics and nanostructures for quantum
information processing, where charge or spin states are controlled by microwave
fields and electrically detected. Here the variation of the characteristic
times of the multiphonon capture and emission of a single electron by an
interface defect in submicron MOSFETs is calculated and measured as a function
of the microwave power, whose frequency of the voltage modulation is assumed to
be large if compared to the inverse of the characteristic times. The variation
of the characteristic times under microwave irradiation is quantitatively
predicted from the microwave frequency dependent stationary current generated
by the voltage fluctuations itself. The expected values agree with the
experimental measurements. The coupling between the microwave field and either
one or two terminals of the device is discussed. Some consequences on nanoscale
device technology are drawn.
| cond-mat.mes-hall | microwave irradiation causes voltage fluctuations in solid state nanodevices such an effect is relevant in atomic electronics and nanostructures for quantum information processing where charge or spin states are controlled by microwave fields and electrically detected here the variation of the characteristic times of the multiphonon capture and emission of a single electron by an interface defect in submicron mosfets is calculated and measured as a function of the microwave power whose frequency of the voltage modulation is assumed to be large if compared to the inverse of the characteristic times the variation of the characteristic times under microwave irradiation is quantitatively predicted from the microwave frequency dependent stationary current generated by the voltage fluctuations itself the expected values agree with the experimental measurements the coupling between the microwave field and either one or two terminals of the device is discussed some consequences on nanoscale device technology are drawn | [['microwave', 'irradiation', 'causes', 'voltage', 'fluctuations', 'in', 'solid', 'state', 'nanodevices', 'such', 'an', 'effect', 'is', 'relevant', 'in', 'atomic', 'electronics', 'and', 'nanostructures', 'for', 'quantum', 'information', 'processing', 'where', 'charge', 'or', 'spin', 'states', 'are', 'controlled', 'by', 'microwave', 'fields', 'and', 'electrically', 'detected', 'here', 'the', 'variation', 'of', 'the', 'characteristic', 'times', 'of', 'the', 'multiphonon', 'capture', 'and', 'emission', 'of', 'a', 'single', 'electron', 'by', 'an', 'interface', 'defect', 'in', 'submicron', 'mosfets', 'is', 'calculated', 'and', 'measured', 'as', 'a', 'function', 'of', 'the', 'microwave', 'power', 'whose', 'frequency', 'of', 'the', 'voltage', 'modulation', 'is', 'assumed', 'to', 'be', 'large', 'if', 'compared', 'to', 'the', 'inverse', 'of', 'the', 'characteristic', 'times', 'the', 'variation', 'of', 'the', 'characteristic', 'times', 'under', 'microwave', 'irradiation', 'is', 'quantitatively', 'predicted', 'from', 'the', 'microwave', 'frequency', 'dependent', 'stationary', 'current', 'generated', 'by', 'the', 'voltage', 'fluctuations', 'itself', 'the', 'expected', 'values', 'agree', 'with', 'the', 'experimental', 'measurements', 'the', 'coupling', 'between', 'the', 'microwave', 'field', 'and', 'either', 'one', 'or', 'two', 'terminals', 'of', 'the', 'device', 'is', 'discussed', 'some', 'consequences', 'on', 'nanoscale', 'device', 'technology', 'are', 'drawn']] | [-0.15974188226606423, 0.21792941124216753, -0.003501176918488021, 0.0005401602357113422, 0.005652914625348761, -0.15264361471112742, 0.014950773846701838, 0.379359750764682, -0.27330689486928733, -0.3002879290572749, 0.0688174416493912, -0.3074357068516164, -0.07036708631308987, 0.2735949865317335, 0.013759864825480337, 0.03174842886508352, -0.04894965240769338, 0.012833292039748806, -0.01809478083925459, -0.1456297912272381, 0.2624291272376095, 0.08284033739028324, 0.350695607599321, 0.07788078732368217, 0.0929720865893834, -0.033240067766316786, 0.016385312821097273, 0.02352338549899775, -0.09814754167209136, 0.048930028298379065, 0.2442308687479954, 0.006204653728203285, 0.17918723605685685, -0.49050999454053856, -0.2220287829350005, 0.0726762563103967, 0.09059249147016481, 0.1231848700222053, -0.0662275305839768, -0.27276959245236926, 0.06238701397978119, -0.11686392030334913, -0.08515607290932496, 0.006987185804985914, 0.025656426937670732, 0.0527766617358781, -0.26526294662710903, 0.05965737022862663, 0.027227220133309495, 0.06933188471855634, -0.07079533869306863, -0.08362030015395791, -0.0293984511654649, 0.08366502875219187, 0.017867313340093765, 0.04505610756729198, 0.2559339938741552, -0.12376348568664101, -0.1288997077933144, 0.33052431908279856, -0.0700943598870638, -0.13888093787276704, 0.13879493581468627, -0.19959968615842097, -0.004429652458744361, 0.13034662939983127, 0.11938707294855141, 0.0699876274213495, -0.16497099396910192, 0.0796623024382416, 0.0659558726630905, 0.2090135659919364, 0.09208239157115353, 0.10203380823985442, 0.27305240157191585, 0.16815830669725226, 0.040917089837134483, 0.1326201333361209, -0.13324863239091464, -0.015585961445365976, -0.2637220944196686, -0.10638922409329489, -0.23956048187968515, 0.1158402130701548, -0.07879563329040913, -0.16343809283907282, 0.43427756921882, 0.14801221805618414, 0.1839290477269823, -0.048771238773311146, 0.34379409723946414, 0.16330352978743362, 0.08597080992697269, -0.0022146238620399227, 0.2401258873453617, 0.17979304646860633, 0.10639852963875504, -0.2723412086840269, 0.08173993922419996, -0.07819689498220464] |
712.1639 | Evaluations of multiple Dirichlet $L$-values via symmetric functions | We explicitly evaluate a special type of multiple Dirichlet $L$-values at
positive integers in two different ways: One approach involves using symmetric
functions, while the other involves using a generating function of the values.
Equating these two expressions, we derive several summation formulae involving
the Bernoulli and Euler numbers. Moreover, values at non-positive integers,
called central limit values, are also studied.
| math.NT math.CO | we explicitly evaluate a special type of multiple dirichlet lvalues at positive integers in two different ways one approach involves using symmetric functions while the other involves using a generating function of the values equating these two expressions we derive several summation formulae involving the bernoulli and euler numbers moreover values at nonpositive integers called central limit values are also studied | [['we', 'explicitly', 'evaluate', 'a', 'special', 'type', 'of', 'multiple', 'dirichlet', 'lvalues', 'at', 'positive', 'integers', 'in', 'two', 'different', 'ways', 'one', 'approach', 'involves', 'using', 'symmetric', 'functions', 'while', 'the', 'other', 'involves', 'using', 'a', 'generating', 'function', 'of', 'the', 'values', 'equating', 'these', 'two', 'expressions', 'we', 'derive', 'several', 'summation', 'formulae', 'involving', 'the', 'bernoulli', 'and', 'euler', 'numbers', 'moreover', 'values', 'at', 'nonpositive', 'integers', 'called', 'central', 'limit', 'values', 'are', 'also', 'studied']] | [-0.19655729173758968, 0.10277131045884624, -0.054332390030632255, 0.11889191030631543, -0.07190725396646828, -0.18069882562658826, 0.013546849494097664, 0.29177812767810507, -0.22948145444627058, -0.24476799539855268, 0.06100419524591416, -0.2616913350085255, -0.15193066807066807, 0.26744107105463866, 0.029493198630812227, 0.030501568921580225, 0.0035352208346250604, 0.0748971380965143, -0.1182060836371584, -0.24504526223620918, 0.420649846924133, -0.09346968724896185, 0.21590455285594112, 0.042054580799380285, 0.13116524147907974, 0.01177235901332842, -0.04869858588504254, -0.014378637220466235, -0.1500786693583502, 0.10014770702710833, 0.2584771012169782, 0.06165875247145285, 0.3207012373709776, -0.4059850164673856, -0.12455524285858283, 0.16148225484476958, 0.12996109847368703, 0.036869422941025895, -0.02095228490862446, -0.1986238816600354, 0.09818020490471457, -0.1893117452254061, -0.13781719141807713, -0.0884789396459084, 0.032086420537079455, 0.09566060904142462, -0.33321939362976394, 0.06092545583597995, -0.01161542357724221, 0.07006682425004537, -0.08450717034703883, -0.268499429131568, 0.047397795087489925, 0.15062144300976738, 0.04997524130539816, -0.07794693912585555, 0.05560374840880271, -0.103913192754515, -0.11342075029788844, 0.3046946649546506, -0.05273455908125053, -0.31004772286434645, 0.13611013026999647, -0.14903745377344674, -0.19227338459373253, 0.1131125975526167, 0.0740283964751441, 0.1950838902934653, -0.10263567388851623, 0.06402626184300046, -0.06980662400544178, 0.05636464669101979, 0.21676757996596518, -0.015134072389270439, 0.19957995849860008, -0.05147860080125879, -0.022532948964565504, 0.2214543866270344, -0.06690003147318227, -0.1555510814393275, -0.33156509137975787, -0.1272484739005688, -0.196837060825258, 0.057784338668752155, -0.15445680594902875, -0.14874739254840086, 0.3815436352227555, 0.08332566646706374, 0.2222909067268865, 0.1593081091500086, 0.2810111964335207, 0.21091403643463236, 0.05747074917050415, 0.017875959150126724, 0.06870253762749375, 0.13858192419770676, 0.043090429522247876, -0.11358328628903408, 0.05737202616072581, 0.2029427798983992] |
712.164 | Novel theoretical approach in photoemission spectroscopy: application to
isotope effect and boron-doped diamond | A new path-integral theory is developed to calculate the photoemission
spectra (PES) of correlated many-electron systems. The application to the study
on Bi2Sr2CaCu2O8 (Bi2212) and boron-doped diamond (BDD) is discussed in
details. It is found that the isotopic shift in the angle-resolved
photoemission spectra of Bi2212 is due to the off-diagonal quadratic
electron-phonon (e-ph) coupling, whereas the presence of electron-electron
repulsion partially suppresses this effect. For the BDD, a semiconductor-metal
phase transition, which is induced by increasing the e-ph coupling and dopant
concentration, is reproduced by our theory. Additionally, the presence of Fermi
edge and phonon step-like structure in PES is found to be due to a co-existence
of itinerant and localized electronic states in BDD.
| cond-mat.str-el cond-mat.supr-con | a new pathintegral theory is developed to calculate the photoemission spectra pes of correlated manyelectron systems the application to the study on bi2sr2cacu2o8 bi2212 and borondoped diamond bdd is discussed in details it is found that the isotopic shift in the angleresolved photoemission spectra of bi2212 is due to the offdiagonal quadratic electronphonon eph coupling whereas the presence of electronelectron repulsion partially suppresses this effect for the bdd a semiconductormetal phase transition which is induced by increasing the eph coupling and dopant concentration is reproduced by our theory additionally the presence of fermi edge and phonon steplike structure in pes is found to be due to a coexistence of itinerant and localized electronic states in bdd | [['a', 'new', 'pathintegral', 'theory', 'is', 'developed', 'to', 'calculate', 'the', 'photoemission', 'spectra', 'pes', 'of', 'correlated', 'manyelectron', 'systems', 'the', 'application', 'to', 'the', 'study', 'on', 'bi2sr2cacu2o8', 'bi2212', 'and', 'borondoped', 'diamond', 'bdd', 'is', 'discussed', 'in', 'details', 'it', 'is', 'found', 'that', 'the', 'isotopic', 'shift', 'in', 'the', 'angleresolved', 'photoemission', 'spectra', 'of', 'bi2212', 'is', 'due', 'to', 'the', 'offdiagonal', 'quadratic', 'electronphonon', 'eph', 'coupling', 'whereas', 'the', 'presence', 'of', 'electronelectron', 'repulsion', 'partially', 'suppresses', 'this', 'effect', 'for', 'the', 'bdd', 'a', 'semiconductormetal', 'phase', 'transition', 'which', 'is', 'induced', 'by', 'increasing', 'the', 'eph', 'coupling', 'and', 'dopant', 'concentration', 'is', 'reproduced', 'by', 'our', 'theory', 'additionally', 'the', 'presence', 'of', 'fermi', 'edge', 'and', 'phonon', 'steplike', 'structure', 'in', 'pes', 'is', 'found', 'to', 'be', 'due', 'to', 'a', 'coexistence', 'of', 'itinerant', 'and', 'localized', 'electronic', 'states', 'in', 'bdd']] | [-0.1428005966309715, 0.1978937190202675, -0.050084425423470934, 0.05874300947119803, -0.017109197532308513, -0.15259328891336515, 0.09104235428144578, 0.3931158199135599, -0.27332445688481477, -0.2611918826828358, -0.042810941857671175, -0.36880653471172115, -0.1647573984870366, 0.12995831403030275, 0.03507046394074207, -0.00491011802685158, 0.009632138936812508, -0.0719918253076873, -0.11444252690677692, -0.20425425174220563, 0.306181760432584, 0.08529508196154674, 0.31593889460481445, 0.1753639489902055, -0.020154072955282855, 0.041647323816693546, 0.10679326964349582, 0.031150010012989414, -0.10262254259283383, 0.09160298178452148, 0.29538009694681083, -0.11391691263395778, 0.19020047203581458, -0.4213422917889367, -0.22790433084271078, -0.04256391478903142, 0.12941743623754332, 0.1594848774467868, -0.07197259380662782, -0.2846753793158408, 0.05237149551474682, -0.14786411575764288, -0.12399814979992164, -0.11388508360511784, -0.007938921363253531, -0.04018553215808519, -0.23169222457890382, 0.10825546108716136, 0.0209837248207648, 0.05573672431135743, -0.10111202993871772, -0.06988571518389829, -0.10027997955631722, 0.00629281727516831, 0.03386511952527959, 0.04969203203780063, 0.14085140145496175, -0.05836310204929383, -0.06995165722990601, 0.3522124437069328, -0.05927425955325879, -0.07379720764684267, 0.17312052508350462, -0.173103742999956, -0.09283880235081346, 0.18943028481966206, 0.06695246014037523, 0.08786607877720662, -0.1582841944523509, 0.16457376540598362, 0.02542514512957684, 0.20780432604831353, 0.03060518244506213, 0.08087855852650606, 0.18365100775403773, 0.1825572592166156, 0.03380658338247831, 0.1337559023412378, -0.12720306721267066, -0.04625688469165872, -0.17868601460138273, -0.13791554285502383, -0.26951476149582143, 0.051315965125907276, -0.021934425068421064, -0.22333799790368206, 0.39282754978068685, 0.1197426999549799, 0.18938263099046487, -0.08224922561604561, 0.23838116743015766, 0.16747434008043613, 0.0765485725975756, -0.0076351714890514465, 0.26325728962647504, 0.21358710204066453, 0.08896634797164207, -0.4020511702883282, 0.1030083199930859, 0.02402949931525529] |
712.1641 | Examining the crossover from hadronic to partonic phase in QCD | It is argued that, due to the existence of two vacua -- perturbative and
physical -- in QCD, the mechanism for the crossover from hadronic to partonic
phase is hard to construct. The challenge is: how to realize the transition
between the two vacua during the gradual crossover of the two phases. A
possible solution of this problem is proposed and a mechanism for crossover,
consistent with the principle of QCD, is constructed. The essence of this
mechanism is the appearance and growing up of a kind of grape-shape
perturbative vacuum inside the physical one. A dynamical percolation model
based on a simple dynamics for the delocalization of partons is constructed to
exhibit this mechanism. The crossover from hadronic matter to sQGP as well as
the transition from sQGP to wQGP in the increasing of temperature is
successfully described by using this model with a temperature dependent
parameter.
| hep-th | it is argued that due to the existence of two vacua perturbative and physical in qcd the mechanism for the crossover from hadronic to partonic phase is hard to construct the challenge is how to realize the transition between the two vacua during the gradual crossover of the two phases a possible solution of this problem is proposed and a mechanism for crossover consistent with the principle of qcd is constructed the essence of this mechanism is the appearance and growing up of a kind of grapeshape perturbative vacuum inside the physical one a dynamical percolation model based on a simple dynamics for the delocalization of partons is constructed to exhibit this mechanism the crossover from hadronic matter to sqgp as well as the transition from sqgp to wqgp in the increasing of temperature is successfully described by using this model with a temperature dependent parameter | [['it', 'is', 'argued', 'that', 'due', 'to', 'the', 'existence', 'of', 'two', 'vacua', 'perturbative', 'and', 'physical', 'in', 'qcd', 'the', 'mechanism', 'for', 'the', 'crossover', 'from', 'hadronic', 'to', 'partonic', 'phase', 'is', 'hard', 'to', 'construct', 'the', 'challenge', 'is', 'how', 'to', 'realize', 'the', 'transition', 'between', 'the', 'two', 'vacua', 'during', 'the', 'gradual', 'crossover', 'of', 'the', 'two', 'phases', 'a', 'possible', 'solution', 'of', 'this', 'problem', 'is', 'proposed', 'and', 'a', 'mechanism', 'for', 'crossover', 'consistent', 'with', 'the', 'principle', 'of', 'qcd', 'is', 'constructed', 'the', 'essence', 'of', 'this', 'mechanism', 'is', 'the', 'appearance', 'and', 'growing', 'up', 'of', 'a', 'kind', 'of', 'grapeshape', 'perturbative', 'vacuum', 'inside', 'the', 'physical', 'one', 'a', 'dynamical', 'percolation', 'model', 'based', 'on', 'a', 'simple', 'dynamics', 'for', 'the', 'delocalization', 'of', 'partons', 'is', 'constructed', 'to', 'exhibit', 'this', 'mechanism', 'the', 'crossover', 'from', 'hadronic', 'matter', 'to', 'sqgp', 'as', 'well', 'as', 'the', 'transition', 'from', 'sqgp', 'to', 'wqgp', 'in', 'the', 'increasing', 'of', 'temperature', 'is', 'successfully', 'described', 'by', 'using', 'this', 'model', 'with', 'a', 'temperature', 'dependent', 'parameter']] | [-0.07332849373462899, 0.22491593779353747, -0.15034482432431795, 0.06382970649684812, -0.04969954736980385, -0.10226687397566978, 0.06252536889294098, 0.31663460110551034, -0.2586721957757555, -0.26987388326690115, 0.05590673919349652, -0.2692540893202712, -0.1229391125897909, 0.11784262652348342, 0.021149257037403255, 0.04696816193132565, -0.026866202005024615, 0.02166712803059611, -0.06286251273784979, -0.172208950511212, 0.37426087343744163, 0.03720726227580473, 0.28126741674054284, 0.12781025999193563, 0.11471652877677617, -0.05846522601385569, 0.03917860973562146, -0.014937144305942387, -0.10505606324019529, 0.042606261275419645, 0.23492580133426036, 0.05862183885514367, 0.19834318214963223, -0.37322930680780575, -0.22599467573655319, 0.0909439953333088, 0.12847734830374347, 0.1490752972839079, -0.04239562133022038, -0.25501497607549717, 0.07750306889848334, -0.18499427728098014, -0.14312640921501765, -0.06302757433190107, -0.0017127346697038619, -0.05191841380799125, -0.28285997475914915, 0.09072285928474418, 0.01541756438713617, -0.01792174390324488, -0.030308888781944227, -0.03828351883667296, -0.020126497136942784, 0.09248204634259936, 0.09782095336162581, 0.08567225683865876, 0.1087577497650837, -0.1696930730779623, -0.12977740874208896, 0.4291481716108733, -0.029108776488534077, -0.12574004977459793, 0.21368977369194658, -0.13059633239503582, -0.1071846029913888, 0.17364891420664458, 0.12876725537895128, 0.10311869600916217, -0.1542018404102017, 0.06610797783886765, -0.003926394886240877, 0.15390514586249301, 0.014255897985000548, 0.024944355375743632, 0.24470951567436086, 0.2313410877924541, -0.006971897751670973, 0.17015450932085513, -0.03046233105665908, -0.17016506575987322, -0.3430918133143207, -0.09292189027985621, -0.20592299568755873, 0.04428283893342676, -0.08470599518352237, -0.2031974743730549, 0.39900071517532243, 0.16714827109626013, 0.25943663808163897, -0.006563225953743376, 0.272215070774586, 0.10276988763201596, 0.04811555662288748, 0.02461215780469878, 0.29103652073776926, 0.1388622670932191, 0.14009739832695703, -0.2648812945699319, 0.04937977109682457, 0.10074634242417484] |
712.1642 | Anomalous Heat Conduction in Three-Dimensional Nonlinear Lattices | Heat conduction in three-dimenisional nonlinear lattice models is studied
using nonequilibrium molecular dynamics simulations. We employ the FPU model,
in which there exists a nonlinearity in the interaction of biquadratic form. It
is confirmed that the thermal conductivity, the ratio of the energy flux to the
temperature gradient, diverges in systems up to 128x128x256 lattice sites. This
size corresponds to nanoscopic to mesoscopic scales of several tens of
nanometers. From these results, we conjecture that the energy transport in
insulators with perfect crystalline order exhibits anomalous behavior. The
effects of lattice structure, random impurities, and natural length in
interactions are also examined. We find that face-centered cubic (fcc) lattices
display stronger divergence than simple cubic lattices. When impurity sites of
infinitely large mass, which are hence fixed, are randomly distributed, such
divergence vanishes.
| cond-mat.stat-mech physics.comp-ph | heat conduction in threedimenisional nonlinear lattice models is studied using nonequilibrium molecular dynamics simulations we employ the fpu model in which there exists a nonlinearity in the interaction of biquadratic form it is confirmed that the thermal conductivity the ratio of the energy flux to the temperature gradient diverges in systems up to 128x128x256 lattice sites this size corresponds to nanoscopic to mesoscopic scales of several tens of nanometers from these results we conjecture that the energy transport in insulators with perfect crystalline order exhibits anomalous behavior the effects of lattice structure random impurities and natural length in interactions are also examined we find that facecentered cubic fcc lattices display stronger divergence than simple cubic lattices when impurity sites of infinitely large mass which are hence fixed are randomly distributed such divergence vanishes | [['heat', 'conduction', 'in', 'threedimenisional', 'nonlinear', 'lattice', 'models', 'is', 'studied', 'using', 'nonequilibrium', 'molecular', 'dynamics', 'simulations', 'we', 'employ', 'the', 'fpu', 'model', 'in', 'which', 'there', 'exists', 'a', 'nonlinearity', 'in', 'the', 'interaction', 'of', 'biquadratic', 'form', 'it', 'is', 'confirmed', 'that', 'the', 'thermal', 'conductivity', 'the', 'ratio', 'of', 'the', 'energy', 'flux', 'to', 'the', 'temperature', 'gradient', 'diverges', 'in', 'systems', 'up', 'to', '128x128x256', 'lattice', 'sites', 'this', 'size', 'corresponds', 'to', 'nanoscopic', 'to', 'mesoscopic', 'scales', 'of', 'several', 'tens', 'of', 'nanometers', 'from', 'these', 'results', 'we', 'conjecture', 'that', 'the', 'energy', 'transport', 'in', 'insulators', 'with', 'perfect', 'crystalline', 'order', 'exhibits', 'anomalous', 'behavior', 'the', 'effects', 'of', 'lattice', 'structure', 'random', 'impurities', 'and', 'natural', 'length', 'in', 'interactions', 'are', 'also', 'examined', 'we', 'find', 'that', 'facecentered', 'cubic', 'fcc', 'lattices', 'display', 'stronger', 'divergence', 'than', 'simple', 'cubic', 'lattices', 'when', 'impurity', 'sites', 'of', 'infinitely', 'large', 'mass', 'which', 'are', 'hence', 'fixed', 'are', 'randomly', 'distributed', 'such', 'divergence', 'vanishes']] | [-0.18112298577867506, 0.21931464519735624, -0.019187060343403766, 0.05748061805462308, -0.024427327961938184, -0.15332950884120838, 0.022004616539214403, 0.4052136026265967, -0.29447247287772155, -0.2546573395997229, 0.03335741567887537, -0.35351094337116273, -0.1250181585774252, 0.15726090945438517, 0.07380929291290533, 0.028745861489411075, -0.00775411264359496, -0.0034559187337130535, -0.07238976997038961, -0.2725660520879452, 0.2683490028752384, 0.030333104276787915, 0.28213964000642866, 0.10160455896558226, 0.059048782291160964, -0.029032998341526693, 0.10982302536046885, 0.059843445374481094, -0.17786465080652453, 0.05459815259638086, 0.19590104583159063, -0.09727962231903359, 0.21046830677669068, -0.4596532682127511, -0.236091363352176, 0.08651397955596789, 0.10999448315012944, 0.1560602295016941, -0.053019970783409275, -0.17440878903628362, 0.05763942783499378, -0.11950854563246702, -0.15707302838208453, -0.08295880892413547, 0.012873618856413674, 0.05231588935116946, -0.24802594576501963, 0.15801872267322933, 0.07136719801484515, 0.09962801554929891, -0.05184858727521256, -0.11442630442271706, -0.047125022949025264, 0.062474551987665425, 0.045527273358044906, 0.0009712421278405281, 0.14363835726772214, -0.11778670226806733, -0.0968062829986954, 0.42312018615940145, -0.07442331073580413, -0.1551171999019464, 0.21083938123530332, -0.16536247382608762, -0.10439257224211256, 0.17984377464123127, 0.15899065514415048, 0.08206234687143041, -0.13998489719311233, 0.09168178687460422, -0.05780364593974393, 0.19257386881708816, 0.05776191867340555, 0.04502189378005289, 0.20745042476888376, 0.1824660922404208, 0.058998410689523655, 0.18711114357908093, -0.08251117381359671, -0.15298478507955793, -0.2380362261666113, -0.1058587752680742, -0.2417278666438478, 0.08758956867355483, -0.13815399826642477, -0.21786249992046647, 0.3388905604174432, 0.16653558366064636, 0.18306689185267208, 0.00029057565052773205, 0.1924726412309874, 0.11317460224714898, 0.11534179704804115, 0.08475220862301493, 0.21214061086101613, 0.13246826723463237, 0.08557652334419598, -0.2620862220637927, -0.002633676921081452, 0.05680900317339497] |
712.1643 | Passive Evolution of Galaxy Clustering | We present a numerical study of the evolution of galaxy clustering when
galaxies flow passively from high redshift, respecting the continuity equation
throughout. While passive flow is a special case of galaxy evolution, it allows
a well-defined study of galaxy ancestry and serves as an interesting limit to
be compared to non-passive cases. We use dissipationless N-body simulations,
assign galaxies to massive halos at z=1 and z=2 using various HOD models, and
trace these galaxy particles to lower redshift while conserving their number.
We find that passive flow results in an asymptotic convergence at low redshift
in the HOD and in galaxy clustering on scales above ~3Mpc/h for a wide range of
initial HODs. As galaxies become less biased with respect to mass
asymptotically with time, the HOD parameters evolve such that M1/Mm decreases
while alpha converges toward unity, where Mm is the characteristic halo mass to
host a central galaxy, M1 is the halo mass to host one satellite galaxy, and
alpha is the power-law index in the halo-mass dependence of the average number
of satellites per halo. The satellite populations converge toward the Poisson
distribution at low redshift. The convergence is robust for different number
densities and is enhanced when galaxies evolve from higher redshift. We compare
our results with the observed LRG sample from Sloan Digital Sky Survey that has
the same number density. We claim that if LRGs have experienced a strict
passive flow, their <N_g(M)> should be close to a power law with an index of
unity in halo mass. Discrepancies could be due to dry galaxy merging or new
members arising between the initial and the final redshifts. The spatial
distribution of passively flowing galaxies within halos appears on average more
concentrated than the halo mass profile at low redshift. (abridged)
| astro-ph | we present a numerical study of the evolution of galaxy clustering when galaxies flow passively from high redshift respecting the continuity equation throughout while passive flow is a special case of galaxy evolution it allows a welldefined study of galaxy ancestry and serves as an interesting limit to be compared to nonpassive cases we use dissipationless nbody simulations assign galaxies to massive halos at z1 and z2 using various hod models and trace these galaxy particles to lower redshift while conserving their number we find that passive flow results in an asymptotic convergence at low redshift in the hod and in galaxy clustering on scales above 3mpch for a wide range of initial hods as galaxies become less biased with respect to mass asymptotically with time the hod parameters evolve such that m1mm decreases while alpha converges toward unity where mm is the characteristic halo mass to host a central galaxy m1 is the halo mass to host one satellite galaxy and alpha is the powerlaw index in the halomass dependence of the average number of satellites per halo the satellite populations converge toward the poisson distribution at low redshift the convergence is robust for different number densities and is enhanced when galaxies evolve from higher redshift we compare our results with the observed lrg sample from sloan digital sky survey that has the same number density we claim that if lrgs have experienced a strict passive flow their n_gm should be close to a power law with an index of unity in halo mass discrepancies could be due to dry galaxy merging or new members arising between the initial and the final redshifts the spatial distribution of passively flowing galaxies within halos appears on average more concentrated than the halo mass profile at low redshift abridged | [['we', 'present', 'a', 'numerical', 'study', 'of', 'the', 'evolution', 'of', 'galaxy', 'clustering', 'when', 'galaxies', 'flow', 'passively', 'from', 'high', 'redshift', 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712.1644 | String Junction Model, Cluster Hypothesis, Penta-Quark Baryon and
Tetra-Quark Meson | Thirty years ago we proposed string junction model of hadrons and examined
structure and reaction of hadrons including exotic ones. Mass $m$ of exotic
hadrons of light quarks is roughly given by $m \sim N_J\cdot m_B$, where $N_J$
is the total number of junctions and $m_B \sim 1$ GeV is the ordinary light
baryon mass. In this paper we introduce "cluster hypothesis" into the model by
which mass of a complex hadron is given by the sum of masses of clusters
composing it. The hypothesis guarantees the established picture that mass
differences of hadrons of the same string junction structure are due to those
of the constituent quarks. A candidate for penta-quark baryon $\Theta$(1530
MeV, $S=+1)$ including a strange anti-quark ${\sb}$ and that for tetra-quark
meson $Z^+$(4430 MeV) recently reported by the Bell collaboration are examined
in parallel. $\Theta $ is considered to have non-strange partners, which are
lighter by the mass difference $\Delta_s$ between strange and non-strange
quarks. Mass of such light penta-quark baryons with $N_J=3$ is expected to be
about 3 GeV. Several parameters of the model are estimated such as mass of
junction of $m_J \sim O(10)$ MeV. While mass of light tetra-quark meson with
$N_J=2$ is expected to be about 2 GeV, $Z^+$(4430 MeV) containing
$(u,c,{\db},{\cb})$ gives a clue to determine some parameters of the model,
e.g., inter-junction string energy $m_{IJ}$.
| hep-ph hep-ex | thirty years ago we proposed string junction model of hadrons and examined structure and reaction of hadrons including exotic ones mass m of exotic hadrons of light quarks is roughly given by m sim n_jcdot m_b where n_j is the total number of junctions and m_b sim 1 gev is the ordinary light baryon mass in this paper we introduce cluster hypothesis into the model by which mass of a complex hadron is given by the sum of masses of clusters composing it the hypothesis guarantees the established picture that mass differences of hadrons of the same string junction structure are due to those of the constituent quarks a candidate for pentaquark baryon theta1530 mev s1 including a strange antiquark sb and that for tetraquark meson z4430 mev recently reported by the bell collaboration are examined in parallel theta is considered to have nonstrange partners which are lighter by the mass difference delta_s between strange and nonstrange quarks mass of such light pentaquark baryons with n_j3 is expected to be about 3 gev several parameters of the model are estimated such as mass of junction of m_j sim o10 mev while mass of light tetraquark meson with n_j2 is expected to be about 2 gev z4430 mev containing ucdbcb gives a clue to determine some parameters of the model eg interjunction string energy m_ij | [['thirty', 'years', 'ago', 'we', 'proposed', 'string', 'junction', 'model', 'of', 'hadrons', 'and', 'examined', 'structure', 'and', 'reaction', 'of', 'hadrons', 'including', 'exotic', 'ones', 'mass', 'm', 'of', 'exotic', 'hadrons', 'of', 'light', 'quarks', 'is', 'roughly', 'given', 'by', 'm', 'sim', 'n_jcdot', 'm_b', 'where', 'n_j', 'is', 'the', 'total', 'number', 'of', 'junctions', 'and', 'm_b', 'sim', '1', 'gev', 'is', 'the', 'ordinary', 'light', 'baryon', 'mass', 'in', 'this', 'paper', 'we', 'introduce', 'cluster', 'hypothesis', 'into', 'the', 'model', 'by', 'which', 'mass', 'of', 'a', 'complex', 'hadron', 'is', 'given', 'by', 'the', 'sum', 'of', 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712.1645 | New limits on spin-independent and spin-dependent couplings of low-mass
WIMP dark matter with a germanium detector at a threshold of 220 eV | An energy threshold of (220+-10) eV was achieved at an efficiency of 50% with
a four-channel ultra-low-energy germanium detector each with an active mass of
5 g. This provides a unique probe to WIMP dark matter with mass below 10 GeV.
With a data acquisition live time of 0.338 kg-day at the Kuo-Sheng Laboratory,
constraints on WIMPs in the galactic halo were derived. The limits improve over
previous results on both the spin-independent WIMP-nucleon and the
spin-dependent WIMP-neutron cross-sections for WIMP mass between 3-6 GeV.
Sensitivities for full-scale experiments are projected. This detector technique
makes the unexplored sub-keV energy window accessible for new neutrino and dark
matter experiments. Two appendices are included after Version-3 to address
questions raised on trigger and selection efficiencies as well as other issues.
| hep-ex | an energy threshold of 22010 ev was achieved at an efficiency of 50 with a fourchannel ultralowenergy germanium detector each with an active mass of 5 g this provides a unique probe to wimp dark matter with mass below 10 gev with a data acquisition live time of 0338 kgday at the kuosheng laboratory constraints on wimps in the galactic halo were derived the limits improve over previous results on both the spinindependent wimpnucleon and the spindependent wimpneutron crosssections for wimp mass between 36 gev sensitivities for fullscale experiments are projected this detector technique makes the unexplored subkev energy window accessible for new neutrino and dark matter experiments two appendices are included after version3 to address questions raised on trigger and selection efficiencies as well as other issues | [['an', 'energy', 'threshold', 'of', '22010', 'ev', 'was', 'achieved', 'at', 'an', 'efficiency', 'of', '50', 'with', 'a', 'fourchannel', 'ultralowenergy', 'germanium', 'detector', 'each', 'with', 'an', 'active', 'mass', 'of', '5', 'g', 'this', 'provides', 'a', 'unique', 'probe', 'to', 'wimp', 'dark', 'matter', 'with', 'mass', 'below', '10', 'gev', 'with', 'a', 'data', 'acquisition', 'live', 'time', 'of', '0338', 'kgday', 'at', 'the', 'kuosheng', 'laboratory', 'constraints', 'on', 'wimps', 'in', 'the', 'galactic', 'halo', 'were', 'derived', 'the', 'limits', 'improve', 'over', 'previous', 'results', 'on', 'both', 'the', 'spinindependent', 'wimpnucleon', 'and', 'the', 'spindependent', 'wimpneutron', 'crosssections', 'for', 'wimp', 'mass', 'between', '36', 'gev', 'sensitivities', 'for', 'fullscale', 'experiments', 'are', 'projected', 'this', 'detector', 'technique', 'makes', 'the', 'unexplored', 'subkev', 'energy', 'window', 'accessible', 'for', 'new', 'neutrino', 'and', 'dark', 'matter', 'experiments', 'two', 'appendices', 'are', 'included', 'after', 'version3', 'to', 'address', 'questions', 'raised', 'on', 'trigger', 'and', 'selection', 'efficiencies', 'as', 'well', 'as', 'other', 'issues']] | [-0.05648166332985201, 0.18592492516449605, -0.02196168771664065, 0.10524149962501335, -0.05275909284809752, -0.113567036188518, 0.04992023834751712, 0.3647295545254435, -0.15204222944550336, -0.4456186035411462, 0.030614113045712224, -0.3138442164922636, 0.06109711331581431, 0.2759972242564554, 0.03414459972243224, 0.05520159971626801, 0.05146113088140116, 0.024405199176971874, -0.0838586859763526, -0.2789222186372157, 0.2292127905686992, 0.16081478655530465, 0.21036820580798482, 0.14327480991385758, 0.15741101789772363, -0.007225197179996897, -0.05045057867934543, -0.11646178296752392, -0.16878338011410382, 0.04021594384759073, 0.2730776586233535, 0.08639046084320558, 0.15789563299363685, -0.3888144362865696, -0.1649802715428883, 0.1115323831401174, 0.11100291140333172, 0.015933810626082713, -0.09591768936915619, -0.35092648273215643, 0.0708296558124915, -0.2124681012404229, -0.11573860877459603, 0.008731376080374633, -0.027448500676583203, -0.020135391911488058, -0.2431379554669432, 0.09800398841108536, -0.061017794844080944, -0.01207004945784334, -0.06965561180804221, -0.2029128335305445, 0.021916251494697045, -0.01209181861486286, 0.043390933682935104, 0.011073501732584739, 0.23837639890529866, -0.15874756060703288, -0.10582800129509812, 0.3718641918182137, -0.07960404924649213, -0.09981985901859367, 0.1884741032669794, -0.11530516514996259, -0.11538294169844852, 0.1795234344530082, 0.19219739915477851, 0.07756650184016926, -0.20150797392079045, 0.09422955539914601, -0.028119844432535863, 0.2150806989040344, 0.08356650726174907, 0.037644248453915, 0.29229214968897094, 0.29928859076203984, 0.12344571299821375, -0.0064967293564843695, -0.19763206035852254, 0.006463486568203994, -0.315787836199715, -0.10028998376358123, -0.09922358620586613, 0.013303447171070036, -0.04636320601818466, -0.027371668371386708, 0.3374950388919503, 0.1225602062832978, 0.23340260668376844, 0.03114451683821186, 0.3108359726796311, 0.05224888207250467, 0.045706370675433726, 0.0032223949951696255, 0.349642671881214, 0.14067308846602422, 0.11984252050012675, -0.17539234265744214, -0.040388973106423184, -0.0417033463997382] |
712.1646 | The joint distribution of occupation times of skip-free Markov processes
and a class of multivariate exponential distributions | For a skip-free Markov process on non-negative integers with generator matrix
Q, we evaluate the joint Laplace transform of the occupation times before
hitting the state n (starting at 0). This Laplace transform has a very
straightforward and familiar expression. We investigate the properties of this
Laplace transform, especially the conditions under which the occupation times
form a Markov chain.
| math.PR | for a skipfree markov process on nonnegative integers with generator matrix q we evaluate the joint laplace transform of the occupation times before hitting the state n starting at 0 this laplace transform has a very straightforward and familiar expression we investigate the properties of this laplace transform especially the conditions under which the occupation times form a markov chain | [['for', 'a', 'skipfree', 'markov', 'process', 'on', 'nonnegative', 'integers', 'with', 'generator', 'matrix', 'q', 'we', 'evaluate', 'the', 'joint', 'laplace', 'transform', 'of', 'the', 'occupation', 'times', 'before', 'hitting', 'the', 'state', 'n', 'starting', 'at', '0', 'this', 'laplace', 'transform', 'has', 'a', 'very', 'straightforward', 'and', 'familiar', 'expression', 'we', 'investigate', 'the', 'properties', 'of', 'this', 'laplace', 'transform', 'especially', 'the', 'conditions', 'under', 'which', 'the', 'occupation', 'times', 'form', 'a', 'markov', 'chain']] | [-0.07866791815807422, 0.129623930544282, -0.10519511290670683, 0.10558565195451593, -0.050769040912079316, -0.10884765326821556, 0.05805273000150919, 0.3843706995869676, -0.29586222873379786, -0.1851549278323849, 0.14432836392273504, -0.2605027371707062, -0.10424835749048118, 0.128463762657096, 0.0143126979470253, 0.08353169079249104, 0.04318826063148056, 0.10026080626994371, -0.13138867213080327, -0.18312151567079127, 0.27733863176157075, 0.006936677793661753, 0.28293685913085936, -0.04820536336725733, 0.14866835619905033, 0.07256602410537501, 0.020965167228132485, -0.12538436232910802, -0.16836266924316684, 0.04720350254016618, 0.17636566007276996, 0.11833943410310895, 0.2742496202389399, -0.4524588217958808, -0.14047869582039615, 0.14964656753775973, 0.12116652614592265, 0.02667144459943908, -0.019554242020240052, -0.32423067664106686, 0.062026859788844986, -0.13280083599383943, -0.13649927009876894, -0.04556738311657682, 0.07590783652073393, -0.00021185397636145354, -0.3498153491100917, 0.03666940663630764, 0.08702839035928871, -0.001146082735309998, -0.009064509921396771, -0.16830751802772284, 0.05821083706493179, 0.07040053474872063, 0.045913595642681077, -0.01834747117633621, 0.10544297607460369, -0.04878034318765761, -0.07159027045903106, 0.32393453874004385, -0.07446454617505273, -0.25499732258419194, 0.1130404654967909, -0.1781274504804363, -0.1994906932891657, 0.14416856560080002, 0.13425965982799729, 0.16508470793875554, -0.1421933433196197, 0.17696316397341433, -0.035834554582834244, 0.11168293900166949, 0.10379088517899314, -0.02461888442436854, 0.15141359806681673, 0.10775118858243028, 0.08462890111841262, 0.19363428108238925, -0.06879170162525648, -0.12958583952082942, -0.283220019005239, -0.19190256192038457, -0.27930398723110555, 0.16261345354141668, -0.10445108108663893, -0.20134796391551693, 0.3849586747082261, 0.09873927480998645, 0.23522475808858873, 0.1760090386980058, 0.25638679539163906, 0.2563117233260224, -0.021795384407353898, 0.0383975604781881, -0.014100302942097187, 0.16870837211608886, 0.08061609203771998, -0.2031939135864377, 0.08060773060036203, 0.10489283410521845] |
712.1647 | Non-associativity, supersymmetry and hidden variables | It is shown that the supersymmetric quantum mechanics has an octonionic
generalization. The generalization is based on the inclusion of quaternions
into octonions. The elements from the coset octonions/quaternions are
unobservables bacause they cannot be considered as quantum operators as a
consequence of their non-associative properties. The idea that the octonionic
generalization of the supersymmetric quantum mechanics describes an observable
particle formed with unobservable ``particles'' is presented.
| quant-ph hep-ph hep-th math-ph math.MP math.RA | it is shown that the supersymmetric quantum mechanics has an octonionic generalization the generalization is based on the inclusion of quaternions into octonions the elements from the coset octonionsquaternions are unobservables bacause they cannot be considered as quantum operators as a consequence of their nonassociative properties the idea that the octonionic generalization of the supersymmetric quantum mechanics describes an observable particle formed with unobservable particles is presented | [['it', 'is', 'shown', 'that', 'the', 'supersymmetric', 'quantum', 'mechanics', 'has', 'an', 'octonionic', 'generalization', 'the', 'generalization', 'is', 'based', 'on', 'the', 'inclusion', 'of', 'quaternions', 'into', 'octonions', 'the', 'elements', 'from', 'the', 'coset', 'octonionsquaternions', 'are', 'unobservables', 'bacause', 'they', 'can', 'not', 'be', 'considered', 'as', 'quantum', 'operators', 'as', 'a', 'consequence', 'of', 'their', 'nonassociative', 'properties', 'the', 'idea', 'that', 'the', 'octonionic', 'generalization', 'of', 'the', 'supersymmetric', 'quantum', 'mechanics', 'describes', 'an', 'observable', 'particle', 'formed', 'with', 'unobservable', 'particles', 'is', 'presented']] | [-0.06096312395035938, 0.1905281093349913, -0.10079057283247962, 0.09685790212648554, -0.09211891182966417, -0.11720017691594407, -0.09283857123404177, 0.30562765145617904, -0.2635343888012523, -0.22583821287138783, 0.07534502170782423, -0.2730916161936792, -0.21583722517684553, 0.19217495882185176, -0.11347147267819806, 0.036258320422899545, 0.024666890997182098, 0.09609984753258301, -0.08214967214029678, -0.2444794953546741, 0.2887035728023021, 0.07463011284055414, 0.20205042499935988, 0.01696392955173823, 0.12226706031343025, 0.022602902915836734, -0.0067693601418851, -0.011784452126558983, -0.06548908501832612, 0.09610535377446054, 0.23022817862643438, 0.1469719892819271, 0.1682813373521309, -0.4169456586523941, -0.18101141630022816, 0.130644632588056, 0.180505561988067, 0.0868873494310361, -0.02934846813458893, -0.3277301379677021, 0.026419430371430335, -0.1874027506829324, -0.1516378314911642, -0.07454286567923246, 0.002165502685150414, -0.07400948984661337, -0.1984128706566425, 0.019918403821066022, 0.10758820147902677, 0.022048296918166507, -0.01874068102827578, -0.11745294092477045, -0.042971799284163295, 0.07488406799507863, 0.007587532826812204, -0.013927736446600069, 0.16170421369712462, -0.09626956595898126, -0.21533764478270756, 0.47144367015271477, 0.01151386060519144, -0.3159300671382384, 0.11058620315849442, -0.08342087086798115, -0.13181921086189421, 0.04600455483534571, 0.09326518616272193, 0.10694357081118858, -0.13262044567487796, 0.1826183792683437, -0.11972010482779959, 0.1216942583577651, 0.02928791764530946, 0.08465560258958828, 0.2515221238982948, 0.11660339923180414, 0.029350126077505676, 0.13462256480565746, 0.01219280830683243, -0.23024070421657103, -0.39323919418860565, -0.23360495526823355, -0.21266405316154388, 0.13606198294688843, -0.10060896100758603, -0.19184953067584007, 0.3673730480597552, 0.09362772116296444, 0.15319127598989077, 0.0012845549111564953, 0.20592968953265386, 0.15596062262105106, 0.14217660896070866, -0.009490907178119276, 0.25165905613649747, 0.2569159212183546, 0.04532594186303234, -0.16487564292390633, -0.018631971645818063, 0.16633379689389557] |
712.1648 | Causal Set Topology | The Causal Set Theory (CST) approach to quantum gravity is motivated by the
observation that, associated with any causal spacetime (M,g) is a poset (M,<),
with the order relation < corresponding to the spacetime causal relation.
Spacetime in CST is assumed to have a fundamental atomicity or discreteness,
and is replaced by a locally finite poset, the causal set. In order to obtain a
well defined continuum approximation, the causal set must possess the requisite
intrinsic topological and geometric properties that characterise a continuum
spacetime in the large. The continuum approximation thus sets the stage for the
study of topology in CST. We review the status of causal set topology and
present some new results relating poset and spacetime topologies. The hope is
that in the process, some of the ideas and questions arising from CST will be
made accessible to the larger community of computer scientists and
mathematicians working on posets.
| gr-qc | the causal set theory cst approach to quantum gravity is motivated by the observation that associated with any causal spacetime mg is a poset m with the order relation corresponding to the spacetime causal relation spacetime in cst is assumed to have a fundamental atomicity or discreteness and is replaced by a locally finite poset the causal set in order to obtain a well defined continuum approximation the causal set must possess the requisite intrinsic topological and geometric properties that characterise a continuum spacetime in the large the continuum approximation thus sets the stage for the study of topology in cst we review the status of causal set topology and present some new results relating poset and spacetime topologies the hope is that in the process some of the ideas and questions arising from cst will be made accessible to the larger community of computer scientists and mathematicians working on posets | [['the', 'causal', 'set', 'theory', 'cst', 'approach', 'to', 'quantum', 'gravity', 'is', 'motivated', 'by', 'the', 'observation', 'that', 'associated', 'with', 'any', 'causal', 'spacetime', 'mg', 'is', 'a', 'poset', 'm', 'with', 'the', 'order', 'relation', 'corresponding', 'to', 'the', 'spacetime', 'causal', 'relation', 'spacetime', 'in', 'cst', 'is', 'assumed', 'to', 'have', 'a', 'fundamental', 'atomicity', 'or', 'discreteness', 'and', 'is', 'replaced', 'by', 'a', 'locally', 'finite', 'poset', 'the', 'causal', 'set', 'in', 'order', 'to', 'obtain', 'a', 'well', 'defined', 'continuum', 'approximation', 'the', 'causal', 'set', 'must', 'possess', 'the', 'requisite', 'intrinsic', 'topological', 'and', 'geometric', 'properties', 'that', 'characterise', 'a', 'continuum', 'spacetime', 'in', 'the', 'large', 'the', 'continuum', 'approximation', 'thus', 'sets', 'the', 'stage', 'for', 'the', 'study', 'of', 'topology', 'in', 'cst', 'we', 'review', 'the', 'status', 'of', 'causal', 'set', 'topology', 'and', 'present', 'some', 'new', 'results', 'relating', 'poset', 'and', 'spacetime', 'topologies', 'the', 'hope', 'is', 'that', 'in', 'the', 'process', 'some', 'of', 'the', 'ideas', 'and', 'questions', 'arising', 'from', 'cst', 'will', 'be', 'made', 'accessible', 'to', 'the', 'larger', 'community', 'of', 'computer', 'scientists', 'and', 'mathematicians', 'working', 'on', 'posets']] | [-0.11932605875976729, 0.1373621521707291, -0.09615664972942199, 0.10457140185979562, -0.1440155860560866, -0.0892541609713746, 0.03437755604479647, 0.3351727798149384, -0.2841700118849214, -0.28327376073818433, 0.09892802713176742, -0.24868810895848895, -0.14797646744910703, 0.14999798181102864, -0.06960550926946449, 0.03002234177034817, 0.02900515745597466, 0.0725640293946243, -0.04869324815866618, -0.2193225428202985, 0.36969395410747496, 0.05792140685845265, 0.26145765234080964, 0.020437273465941926, 0.0900059996946832, -0.015132032464326218, -0.07630309749036929, 0.12485149029691685, -0.1874309010018378, 0.13026283438385322, 0.2649503654957632, 0.15986265564593333, 0.2468670177821703, -0.4204044934756906, -0.20993760288600496, 0.08417581901299638, 0.06209373460089578, 0.11707414185554282, 0.014581359175823334, -0.3083678425493225, 0.11400923415377046, -0.1257772248358595, -0.12821680728333773, -0.05779065703019108, 0.02393329648041962, -0.05391273712461802, -0.22049072266414466, 0.003841173172071083, 0.06931749280930122, 0.06849658429554806, -0.025640813834249775, -0.06619668085226751, -0.016604365745485322, 0.13280090558132934, 0.0178799422206095, 0.0625252908308503, 0.07167610697855321, -0.08919192676043866, -0.158102211758297, 0.3818755044188622, -0.009674892546485691, -0.24386750778417712, 0.18881899255346382, -0.18463873922430127, -0.12207960185058267, 0.09162546566761537, 0.1406760134191456, 0.08005371409782905, -0.15452827368893765, 0.168758681074821, -0.05518332442009686, 0.14367171938820983, 0.07218301845776127, 0.047690569944309674, 0.21134701854740548, 0.13822819723359106, 0.034134147708791474, 0.11486628935410216, -0.012466823727290287, -0.09609793084796937, -0.3653264158830935, -0.14133435816716847, -0.17447853428064938, 0.06724555636617349, -0.11047845165686997, -0.19240237462846255, 0.360304754757822, 0.13696663263901476, 0.13917524889974997, 0.050766187557520416, 0.2268513972063037, 0.058361246149188264, 0.0478034129501968, 0.08136998903968476, 0.19045003546821648, 0.19558855915590134, 0.04626486435785446, -0.18006588099832763, 0.05066135348073694, 0.10502941766753793] |
712.1649 | Warp Drive: A New Approach | Certain classes of higher dimensional models suggest that the Casimir Effect
is a candidate for the cosmological constant. In this paper we demonstrate that
a sufficiently advanced civilization could, in principal, manipulate the radius
of the extra dimension to locally adjust the value of the cosmological
constant. This adjustment could be tuned to generate an expansion/contraction
of spacetime around a spacecraft creating an exotic form of field-propulsion.
Due to the fact that spacetime expansion itself is not restricted by
relativity, a faster-than-light 'warp drive' could be created. Calculations of
the energy requirements of such a drive are performed and an 'ultimate' speed
limit, based on the Planckian limits on the size of the extra dimensions is
found.
| gr-qc | certain classes of higher dimensional models suggest that the casimir effect is a candidate for the cosmological constant in this paper we demonstrate that a sufficiently advanced civilization could in principal manipulate the radius of the extra dimension to locally adjust the value of the cosmological constant this adjustment could be tuned to generate an expansioncontraction of spacetime around a spacecraft creating an exotic form of fieldpropulsion due to the fact that spacetime expansion itself is not restricted by relativity a fasterthanlight warp drive could be created calculations of the energy requirements of such a drive are performed and an ultimate speed limit based on the planckian limits on the size of the extra dimensions is found | [['certain', 'classes', 'of', 'higher', 'dimensional', 'models', 'suggest', 'that', 'the', 'casimir', 'effect', 'is', 'a', 'candidate', 'for', 'the', 'cosmological', 'constant', 'in', 'this', 'paper', 'we', 'demonstrate', 'that', 'a', 'sufficiently', 'advanced', 'civilization', 'could', 'in', 'principal', 'manipulate', 'the', 'radius', 'of', 'the', 'extra', 'dimension', 'to', 'locally', 'adjust', 'the', 'value', 'of', 'the', 'cosmological', 'constant', 'this', 'adjustment', 'could', 'be', 'tuned', 'to', 'generate', 'an', 'expansioncontraction', 'of', 'spacetime', 'around', 'a', 'spacecraft', 'creating', 'an', 'exotic', 'form', 'of', 'fieldpropulsion', 'due', 'to', 'the', 'fact', 'that', 'spacetime', 'expansion', 'itself', 'is', 'not', 'restricted', 'by', 'relativity', 'a', 'fasterthanlight', 'warp', 'drive', 'could', 'be', 'created', 'calculations', 'of', 'the', 'energy', 'requirements', 'of', 'such', 'a', 'drive', 'are', 'performed', 'and', 'an', 'ultimate', 'speed', 'limit', 'based', 'on', 'the', 'planckian', 'limits', 'on', 'the', 'size', 'of', 'the', 'extra', 'dimensions', 'is', 'found']] | [-0.15257482392841887, 0.1758959840752078, -0.09884007750400181, 0.053363838543160014, -0.11131637780686263, -0.12519227773962735, 0.009844342287798444, 0.3182975901411204, -0.24928812922685054, -0.30173582384555503, 0.09857887446535109, -0.2107825723862083, -0.10554336896166205, 0.211211657390432, -0.055976185642568205, 0.00026486155472631596, 0.02169657810811949, 0.0689440562614593, -0.05418045110679392, -0.23776544850311596, 0.32618560701215255, 0.11442633064620293, 0.2467862308860339, 0.04547558096638913, 0.10852535115354213, -0.06884786903512953, 0.011407338600888736, 0.059579033511971795, -0.11592683171875251, 0.11884602800950986, 0.18349246121682694, 0.09075817726913775, 0.2729162890945786, -0.4287351000700788, -0.24516914631962647, 0.11271002883862319, 0.14509002975156082, 0.14105490109369415, -0.04753783121424053, -0.2613685630876089, 0.09458692450275051, -0.18235207138912238, -0.19909341440230993, -0.06496944045647979, 0.024413972556995477, -0.046498287128433104, -0.26687593854048514, 0.03276015755495634, 0.03522460020934071, -0.002895903467074747, -0.0837534309710087, -0.05140117626006972, -0.010254366869299576, 0.09918086190310564, 0.07161878907836267, 0.0337557247077147, 0.15670914154355253, -0.13694389531488485, -0.11412536731021929, 0.39974434666961817, -0.0696157180997222, -0.21248842247135552, 0.1700807234228705, -0.1465651001580509, -0.09103727117100538, 0.10426069119070046, 0.1766723558017663, 0.10127808122719027, -0.11026197567668439, 0.11542275369695211, 0.002397542507267268, 0.21350832784484172, 0.10302399021396734, 0.02642540866910512, 0.27209584036659334, 0.13769390874799212, 0.07096119815933294, 0.1061312732395138, -0.0748086436948017, -0.05725651681985192, -0.3342536653006642, -0.17182400130169018, -0.19224956610585273, 0.09393772920696486, -0.13788985758294764, -0.16730791671153414, 0.3400673922171399, 0.1637209809825812, 0.20038290425396427, -0.0034153486104232483, 0.2782592779378696, 0.11739183709844304, 0.10720721002194453, 0.0772439196890477, 0.3102761718829901, 0.05618604251930233, 0.05693567344710102, -0.21695619809104066, 0.05423537980572417, 0.03548587443596073] |
712.165 | Gauge Invariant Action for the Open Bosonic String | The issue of space time gauge invariance for the bosonic string has been
earlier addressed using the loop variable formalism.
In this paper the question of obtaining a gauge invariant action for the open
bosonic string is discussed. The derivative w.r.t $ln a$ (where $a$ is a world
sheet cutoff) of the partition function - which is first normalized by dividing
by the integral of the two point function of a marginal operator - is a
candidate for the action. Applied to the zero-momentum tachyon it gives a
tachyon potential that is similar to those that have been obtained using
Witten's background independent formalism. This procedure is easily made gauge
invariant in the loop variable formalism by replacing $ln a$ by $\Sigma$ which
is the generalization of the Liouville mode that occurs in this formalism. We
also describe a method of resumming the Taylor expansion that is done in the
loop variable formalism. This allows one to see the pole structure of string
amplitudes that would not be visible in the original loop variable formalism.
| hep-th | the issue of space time gauge invariance for the bosonic string has been earlier addressed using the loop variable formalism in this paper the question of obtaining a gauge invariant action for the open bosonic string is discussed the derivative wrt ln a where a is a world sheet cutoff of the partition function which is first normalized by dividing by the integral of the two point function of a marginal operator is a candidate for the action applied to the zeromomentum tachyon it gives a tachyon potential that is similar to those that have been obtained using wittens background independent formalism this procedure is easily made gauge invariant in the loop variable formalism by replacing ln a by sigma which is the generalization of the liouville mode that occurs in this formalism we also describe a method of resumming the taylor expansion that is done in the loop variable formalism this allows one to see the pole structure of string amplitudes that would not be visible in the original loop variable formalism | [['the', 'issue', 'of', 'space', 'time', 'gauge', 'invariance', 'for', 'the', 'bosonic', 'string', 'has', 'been', 'earlier', 'addressed', 'using', 'the', 'loop', 'variable', 'formalism', 'in', 'this', 'paper', 'the', 'question', 'of', 'obtaining', 'a', 'gauge', 'invariant', 'action', 'for', 'the', 'open', 'bosonic', 'string', 'is', 'discussed', 'the', 'derivative', 'wrt', 'ln', 'a', 'where', 'a', 'is', 'a', 'world', 'sheet', 'cutoff', 'of', 'the', 'partition', 'function', 'which', 'is', 'first', 'normalized', 'by', 'dividing', 'by', 'the', 'integral', 'of', 'the', 'two', 'point', 'function', 'of', 'a', 'marginal', 'operator', 'is', 'a', 'candidate', 'for', 'the', 'action', 'applied', 'to', 'the', 'zeromomentum', 'tachyon', 'it', 'gives', 'a', 'tachyon', 'potential', 'that', 'is', 'similar', 'to', 'those', 'that', 'have', 'been', 'obtained', 'using', 'wittens', 'background', 'independent', 'formalism', 'this', 'procedure', 'is', 'easily', 'made', 'gauge', 'invariant', 'in', 'the', 'loop', 'variable', 'formalism', 'by', 'replacing', 'ln', 'a', 'by', 'sigma', 'which', 'is', 'the', 'generalization', 'of', 'the', 'liouville', 'mode', 'that', 'occurs', 'in', 'this', 'formalism', 'we', 'also', 'describe', 'a', 'method', 'of', 'resumming', 'the', 'taylor', 'expansion', 'that', 'is', 'done', 'in', 'the', 'loop', 'variable', 'formalism', 'this', 'allows', 'one', 'to', 'see', 'the', 'pole', 'structure', 'of', 'string', 'amplitudes', 'that', 'would', 'not', 'be', 'visible', 'in', 'the', 'original', 'loop', 'variable', 'formalism']] | [-0.13864137794327186, 0.15529768433384167, -0.15838321003284994, 0.0988958464219434, -0.08292970845389659, -0.12093926584240415, 0.03891145072492496, 0.32646458632598035, -0.2199592587371179, -0.24522628235722208, 0.06695930178296036, -0.22832246868868797, -0.16034801540131857, 0.14130243385544403, -0.04554380647665848, 0.05367702327539466, 0.007549927088114396, 0.0953547398807384, -0.0576481718578069, -0.25926108750773086, 0.33775459030223204, 0.04514683136781086, 0.2434507603137996, 0.030905024840286528, 0.12082760171921697, 0.00417720193495554, -0.046867362171750665, 0.02873608491748889, -0.09011373230135182, 0.10270904598090087, 0.21228650097622176, 0.08259723845742625, 0.21409708931315366, -0.36312565119732493, -0.2320287437258945, 0.06410289698043525, 0.16317748834615886, 0.11289450878982642, 0.018387046890236396, -0.2495368416824868, 0.07389240980019114, -0.17078415641959518, -0.1808917998044208, -0.06172760274137419, 0.030593899265739185, -0.09435474045165529, -0.25946567467759724, 0.06234875892681296, 0.039481299385600695, 0.0008505834136164957, -0.027644899892122782, -0.06216427856636358, 0.005478950088165399, 0.07640839221946508, 0.07373841507279588, 0.14361782953939858, 0.1036477358904102, -0.14183459957695507, -0.10062330838621222, 0.37027442837376257, -0.10771174388910736, -0.24204234094116728, 0.08450013283045284, -0.1419536765971668, -0.16474257597452127, 0.11326395482755987, 0.05235240146829989, 0.1422085559313223, -0.2014808241184397, 0.20922174095579912, -0.04892208614262801, 0.11989261048749719, 0.10349754220469602, -0.002853116222436545, 0.20622545033908649, 0.11903759601460016, 0.019135283953590976, 0.17053514351190815, -0.04051685238235517, -0.14178270100201398, -0.36999755527156625, -0.16526528645347704, -0.16881698902849124, 0.05686999615619963, -0.07809802374702937, -0.18880896187909593, 0.39032953484199207, 0.12881542872529844, 0.1981916654036741, 0.031445402524170246, 0.2657668622482482, 0.1999759375194432, 0.11123613273890452, 0.020479797224131967, 0.21763670225923806, 0.1259026971451852, 0.08127116874086461, -0.2326017768819402, -0.029534781725829563, 0.15122642511410392] |
712.1651 | An Introduction to Bundle Gerbes | An introduction to the theory of bundle gerbes and their relationship to
Hitchin-Chatterjee gerbes is presented. Topics covered are connective
structures, triviality and stable isomorphism as well as examples and
applications.
| math.DG hep-th math-ph math.MP | an introduction to the theory of bundle gerbes and their relationship to hitchinchatterjee gerbes is presented topics covered are connective structures triviality and stable isomorphism as well as examples and applications | [['an', 'introduction', 'to', 'the', 'theory', 'of', 'bundle', 'gerbes', 'and', 'their', 'relationship', 'to', 'hitchinchatterjee', 'gerbes', 'is', 'presented', 'topics', 'covered', 'are', 'connective', 'structures', 'triviality', 'and', 'stable', 'isomorphism', 'as', 'well', 'as', 'examples', 'and', 'applications']] | [-0.13114186107801895, 0.06804482736285232, -0.020730450997749963, 0.1664327454015923, -0.17587260405222574, -0.1361779510974884, -0.03602556408150122, 0.4443578931813439, -0.382840179776152, -0.3159006596853336, 0.16947054956108332, -0.2756974616398414, -0.24921961968454223, 0.1757861806700627, -0.1734038465966781, -0.007821271227051814, -0.035955012496560815, 0.04889921533564726, -0.07158052930608391, -0.27178571878854807, 0.33165063698155184, 0.08090717932209372, 0.27069636625237764, 0.1564923169557005, 0.07386194958041112, -0.027150331546242037, -0.04632761608809233, 0.03382292094950875, -0.14306450920800368, 0.18281480958685278, 0.38030669403572875, 0.06742911680291096, 0.14847851761927208, -0.36362917302176356, -0.16824233975882333, 0.0916170109063387, 0.1038459571544081, 0.002769316112001737, -0.005241405622412761, -0.30062377229332926, 0.07606717279801765, -0.14290949472536643, -0.10675894441083074, -0.17009138527015846, 0.09667370760192474, 0.0579967519811665, -0.15805669294980665, -0.05899881028259794, 0.08788968986288334, 0.14844803288578987, -0.1251151452587995, -0.04913376585269968, -0.09327260837114106, 0.12872937036057314, 0.06735242554762712, -0.008556705402831237, 0.19935485956569513, -0.13697811222324768, -0.23554678497215112, 0.4235896954933802, -0.009358541977902254, -0.15488584948082765, 0.21093889161323506, 0.018347671534866095, -0.1362818764910723, 0.08424041531980038, 0.06774358299250403, 0.1894440936545531, 0.06425832252328595, 0.14239389931511445, -0.032559178521235785, 0.081887931873401, 0.0788314792793244, 0.016997063408295314, 0.17778616004313033, 0.14774351411809525, 0.042618814886858064, 0.07744153790796797, 0.07916978852202496, -0.1572366097321113, -0.42213377691805365, -0.19035786244397362, -0.03458496872335672, 0.08718575639650225, -0.009682959021787004, -0.20354214534163476, 0.4263875537241499, 0.05348941888660193, 0.2296667863925298, 0.09297253626088302, 0.2428063872580727, -0.01607108098299553, 0.05022810638377753, -0.06129635775772234, 0.1496571447700262, 0.3968377117688457, 0.03780898661352694, 0.016431776977454623, -0.08373046192961435, 0.15586885263522465] |
712.1652 | Comment on "Drip Paintings and Fractal Analysis", arXiv:0710.4917v2, by
K. Jones-Smith, H. Mathur and L.M. Krauss | In a recent manuscript (arXiv:0710.4917v2), Jones-Smith et al. attempt to use
the well-established box-counting technique for fractal analysis to
"demonstrate conclusively that fractal criteria are not useful for
authentication". Here, in response to what we view to be an extremely
simplistic misrepresentation of our earlier work by Jones-Smith et al., we
reiterate our position regarding the potential of fractal analysis for artwork
authentication. We also point out some of the flaws in the analysis presented
in by Jones-Smith et al.
| cond-mat.stat-mech physics.soc-ph | in a recent manuscript arxiv07104917v2 jonessmith et al attempt to use the wellestablished boxcounting technique for fractal analysis to demonstrate conclusively that fractal criteria are not useful for authentication here in response to what we view to be an extremely simplistic misrepresentation of our earlier work by jonessmith et al we reiterate our position regarding the potential of fractal analysis for artwork authentication we also point out some of the flaws in the analysis presented in by jonessmith et al | [['in', 'a', 'recent', 'manuscript', 'arxiv07104917v2', 'jonessmith', 'et', 'al', 'attempt', 'to', 'use', 'the', 'wellestablished', 'boxcounting', 'technique', 'for', 'fractal', 'analysis', 'to', 'demonstrate', 'conclusively', 'that', 'fractal', 'criteria', 'are', 'not', 'useful', 'for', 'authentication', 'here', 'in', 'response', 'to', 'what', 'we', 'view', 'to', 'be', 'an', 'extremely', 'simplistic', 'misrepresentation', 'of', 'our', 'earlier', 'work', 'by', 'jonessmith', 'et', 'al', 'we', 'reiterate', 'our', 'position', 'regarding', 'the', 'potential', 'of', 'fractal', 'analysis', 'for', 'artwork', 'authentication', 'we', 'also', 'point', 'out', 'some', 'of', 'the', 'flaws', 'in', 'the', 'analysis', 'presented', 'in', 'by', 'jonessmith', 'et', 'al']] | [-0.007756323211743862, -0.034167906543338684, -0.13988356287532214, 0.04467371497539025, -0.1013870197760908, -0.0884357734606896, 0.11445395499939405, 0.3660913004622429, -0.19977427406613774, -0.34533867718581157, 0.07196107354085846, -0.26671312367425687, -0.2582266164731376, 0.20454889372038312, -0.17024406323303717, 0.0922046224881388, -0.023310459902675093, -0.1138782427068564, 0.014424956135475371, -0.32558752579873873, 0.30468747707060245, 0.16852183585774294, 0.29451886976515, 0.0698820697025785, -0.01879254227527712, 0.023142493884020215, -0.101717414764711, 0.03149645199374402, -0.19233112033985958, 0.08929313966839374, 0.25118270344277727, 0.14075271330207964, 0.26328112806276055, -0.37017959265533507, -0.2442310507957458, 0.040207239925932094, 0.1528593152348848, 0.13793260918906594, -0.06612242398712831, -0.3191595142117784, 0.10409012346239642, -0.18125908165179852, -0.1757562038182175, -0.10730031392053713, 0.08675065348985829, -0.0035045967154393467, -0.2343462034323123, 0.07105708265746354, 0.1193140986768965, 0.0903934546262969, -0.019558997807104753, -0.1030327536083192, 0.033570568731549795, 0.07146145045002804, -0.01937185355780434, 0.011386416310185119, 0.07206242549810794, -0.040636007688774525, -0.15855945700402313, 0.292672008794697, -0.00792220700532198, -0.16679094740059935, 0.22206567724447557, -0.07759757990553928, -0.23072686005984963, 0.05578067228551718, 0.13847732328503287, 0.07601658640358644, -0.17811990975508396, 0.04884088428431674, -0.10105808142902731, 0.1538532894370706, 0.07666484617239124, -0.017459866030825468, 0.14981948383906973, 0.13242082564230961, -0.035643033895500095, 0.08662696905829059, -0.053844065137231084, -0.06434399221325293, -0.26144906059143286, -0.16315562058758887, -0.2174659555665913, 0.03325389623454082, -0.00795476360812406, -0.1324845568477353, 0.3528663489637496, 0.288582250640928, 0.19821035620296681, -0.03035085691917169, 0.2752256148223636, 0.026132587847429552, -0.00666058112619794, 0.08906794073578866, 0.2859126075920266, 0.05974148335878419, 0.14633565436742163, -0.15252971197065862, 0.07421377189958445, 0.08797106172748004] |
712.1653 | Galois extensions ramified only at one prime | This paper gives some restrictions on finite groups that can occur as Galois
groups of extensions over $\Q$ and over $\F_q(t)$ ramified only at one finite
prime. Over $\Q$, we strengthen results of Jensen and Yui about dihedral
extensions and rule out some non-solvable groups. Over $\F_q(t)$ restrictions
are given for symmetric groups and dihedral groups to occur as tamely ramified
extension over $\F_q(t)$ ramified only at one prime.
| math.NT | this paper gives some restrictions on finite groups that can occur as galois groups of extensions over q and over f_qt ramified only at one finite prime over q we strengthen results of jensen and yui about dihedral extensions and rule out some nonsolvable groups over f_qt restrictions are given for symmetric groups and dihedral groups to occur as tamely ramified extension over f_qt ramified only at one prime | [['this', 'paper', 'gives', 'some', 'restrictions', 'on', 'finite', 'groups', 'that', 'can', 'occur', 'as', 'galois', 'groups', 'of', 'extensions', 'over', 'q', 'and', 'over', 'f_qt', 'ramified', 'only', 'at', 'one', 'finite', 'prime', 'over', 'q', 'we', 'strengthen', 'results', 'of', 'jensen', 'and', 'yui', 'about', 'dihedral', 'extensions', 'and', 'rule', 'out', 'some', 'nonsolvable', 'groups', 'over', 'f_qt', 'restrictions', 'are', 'given', 'for', 'symmetric', 'groups', 'and', 'dihedral', 'groups', 'to', 'occur', 'as', 'tamely', 'ramified', 'extension', 'over', 'f_qt', 'ramified', 'only', 'at', 'one', 'prime']] | [-0.23629100298158068, 0.10584946806151149, -0.12169602402634379, 0.0672587656426122, -0.16733136419476807, -0.22203257121145725, 0.0366428059178229, 0.34729728707368823, -0.3470135286342407, -0.22863048260046195, 0.07865720174099872, -0.23895549979330838, -0.07062628960230158, 0.28071589911005634, -0.13327127219636695, -0.10070415230575895, -0.06593663945956074, 0.1774501002434155, -0.07893784408646541, -0.4248584722965092, 0.3492741379616917, -0.09090175144914267, 0.12119629683539919, 0.0547423858627461, 0.08446262865934683, 0.11493791180217396, -0.015308560540332743, -0.02422051444865655, -0.13373369545107658, 0.028688526860829712, 0.41901992849897646, -0.014120754023231026, 0.2212941514571076, -0.33061617778857116, -0.19835650140041675, 0.3136213453000654, 0.18420454440638423, -0.025055033222272777, 0.01169229190007014, -0.230403249192497, 0.18269266746938229, -0.251413802265365, -0.1415009424765257, -0.0727982644693575, 0.08458508203561971, 0.052292742469496487, -0.21782837813531142, -0.009608850544453531, 0.11406317253367625, 0.2789657658127987, -0.05022080772407893, -0.199048465239289, 0.020661332772747763, 0.046136559311138546, 0.03331507283323647, -0.035267651351033776, 0.09274651044709743, -0.05208292094302242, -0.11873583922135657, 0.3870729651788007, -0.013811755196555801, -0.13129619179644447, 0.11697248168681088, -0.2158542389077121, -0.21938182574872306, 0.16657299376295312, 0.11482789506460878, 0.13026802849186503, 0.10553531058510576, 0.21977682928284764, -0.21362577911898278, 0.05672639193505966, 0.22553259853030677, -0.03198945876615851, 0.1316561957726768, -0.003057618665954341, 0.10999710513008894, 0.07160107636540804, 0.07274481112582852, -0.014971147466828857, -0.4328389753034149, -0.1280212482518476, -0.030714265300311905, 0.0770804503041765, -0.09435621351324211, -0.10462937237141465, 0.41449714441230334, 0.07326511479239317, 0.09964624876021475, 0.18214612394787263, 0.14598084174339537, -0.023284825229801347, 0.16160906247956597, 0.0363758897030915, -0.023363873047882393, 0.27632868932425114, -0.1396922751319716, -0.07455635792913212, -0.054068287416104824, 0.12209031097860872] |
712.1654 | Smoothing $\ell_1$-penalized estimators for high-dimensional time-course
data | When a series of (related) linear models has to be estimated it is often
appropriate to combine the different data-sets to construct more efficient
estimators. We use $\ell_1$-penalized estimators like the Lasso or the Adaptive
Lasso which can simultaneously do parameter estimation and model selection. We
show that for a time-course of high-dimensional linear models the convergence
rates of the Lasso and of the Adaptive Lasso can be improved by combining the
different time-points in a suitable way. Moreover, the Adaptive Lasso still
enjoys oracle properties and consistent variable selection. The finite sample
properties of the proposed methods are illustrated on simulated data and on a
real problem of motif finding in DNA sequences.
| math.ST stat.TH | when a series of related linear models has to be estimated it is often appropriate to combine the different datasets to construct more efficient estimators we use ell_1penalized estimators like the lasso or the adaptive lasso which can simultaneously do parameter estimation and model selection we show that for a timecourse of highdimensional linear models the convergence rates of the lasso and of the adaptive lasso can be improved by combining the different timepoints in a suitable way moreover the adaptive lasso still enjoys oracle properties and consistent variable selection the finite sample properties of the proposed methods are illustrated on simulated data and on a real problem of motif finding in dna sequences | [['when', 'a', 'series', 'of', 'related', 'linear', 'models', 'has', 'to', 'be', 'estimated', 'it', 'is', 'often', 'appropriate', 'to', 'combine', 'the', 'different', 'datasets', 'to', 'construct', 'more', 'efficient', 'estimators', 'we', 'use', 'ell_1penalized', 'estimators', 'like', 'the', 'lasso', 'or', 'the', 'adaptive', 'lasso', 'which', 'can', 'simultaneously', 'do', 'parameter', 'estimation', 'and', 'model', 'selection', 'we', 'show', 'that', 'for', 'a', 'timecourse', 'of', 'highdimensional', 'linear', 'models', 'the', 'convergence', 'rates', 'of', 'the', 'lasso', 'and', 'of', 'the', 'adaptive', 'lasso', 'can', 'be', 'improved', 'by', 'combining', 'the', 'different', 'timepoints', 'in', 'a', 'suitable', 'way', 'moreover', 'the', 'adaptive', 'lasso', 'still', 'enjoys', 'oracle', 'properties', 'and', 'consistent', 'variable', 'selection', 'the', 'finite', 'sample', 'properties', 'of', 'the', 'proposed', 'methods', 'are', 'illustrated', 'on', 'simulated', 'data', 'and', 'on', 'a', 'real', 'problem', 'of', 'motif', 'finding', 'in', 'dna', 'sequences']] | [-0.015757272166012085, 0.02003239425667153, -0.1355790935064617, 0.11034564008086659, -0.11078563525766265, -0.19573490191332735, 0.05268828557771549, 0.4506964834831786, -0.29972240356565044, -0.2800838516967927, 0.1733467672244858, -0.24548662884013825, -0.17805718201245263, 0.2201109965885336, -0.12070381440418332, 0.1291137282581379, 0.10148555502344511, 0.022046456554610478, -0.0848834487679006, -0.3244468921901691, 0.24174180707747214, 0.07698116082240615, 0.30264432343507286, -0.09492528191032379, 0.14482522859716004, 0.029685957949575886, -0.05994836597401126, 0.06952964966267086, -0.10863041696824152, 0.15765064966348163, 0.27480805228473754, 0.15377539038462074, 0.3622397047532886, -0.3417639275376451, -0.2380991169954078, 0.112198827816827, 0.16201517838380186, 0.0945842761237209, -0.03082452624234097, -0.2536893049928997, 0.1042133228722633, -0.11633525153248277, -0.05779995619045701, -0.14268448112712226, -0.08528622352567158, 0.04801260054993786, -0.3900599047141313, 0.10940714148608477, 0.02663015870156845, 0.04777837862881521, -0.054246563149877546, -0.15833231177703852, 0.007419875181655874, 0.07271366947654251, 0.07202333922338623, -0.04414981953072639, 0.10953533759324305, -0.1159737956804109, -0.1322586408881634, 0.33194095400782925, -0.04955218106573611, -0.2287017096267, 0.2091889009363449, -0.06660036588487983, -0.148674947748843, 0.08423728529331193, 0.22372443378461818, 0.1221869724022486, -0.1659500168360976, 0.07463280759188101, -0.06277643368791855, 0.1459769102614046, 0.002865876969799661, -0.007457689345373135, 0.10799724504907142, 0.18194552531196295, 0.0984902711148096, 0.12378728035183852, -0.10851909787181699, -0.04989794950540129, -0.2544513023376726, -0.10568004244889476, -0.19675510773320862, -0.06001376579188856, -0.1923534294764977, -0.1943074247652763, 0.37429580010735153, 0.18298859689629784, 0.21210645686573626, 0.08848277199298568, 0.281514812068883, 0.09804516192525625, 0.0908593166356073, 0.06471503145682315, 0.17853760501990715, 0.09975401271469564, 0.004116815645574478, -0.23932838721380553, 0.13656694214104823, 0.04820803275307346] |
712.1655 | Virtual Laboratories and Virtual Worlds | Since we cannot put stars in a laboratory, astrophysicists had to wait till
the invention of computers before becoming laboratory scientists. For half a
century now, we have been conducting experiments in our virtual laboratories.
However, we ourselves have remained behind the keyboard, with the screen of the
monitor separating us from the world we are simulating. Recently, 3D on-line
technology, developed first for games but now deployed in virtual worlds like
Second Life, is beginning to make it possible for astrophysicists to enter
their virtual labs themselves, in virtual form as avatars. This has several
advantages, from new possibilities to explore the results of the simulations to
a shared presence in a virtual lab with remote collaborators on different
continents. I will report my experiences with the use of Qwaq Forums, a virtual
world developed by a new company (see http://www.qwaq.com)
| astro-ph cs.HC physics.comp-ph | since we cannot put stars in a laboratory astrophysicists had to wait till the invention of computers before becoming laboratory scientists for half a century now we have been conducting experiments in our virtual laboratories however we ourselves have remained behind the keyboard with the screen of the monitor separating us from the world we are simulating recently 3d online technology developed first for games but now deployed in virtual worlds like second life is beginning to make it possible for astrophysicists to enter their virtual labs themselves in virtual form as avatars this has several advantages from new possibilities to explore the results of the simulations to a shared presence in a virtual lab with remote collaborators on different continents i will report my experiences with the use of qwaq forums a virtual world developed by a new company see httpwwwqwaqcom | [['since', 'we', 'can', 'not', 'put', 'stars', 'in', 'a', 'laboratory', 'astrophysicists', 'had', 'to', 'wait', 'till', 'the', 'invention', 'of', 'computers', 'before', 'becoming', 'laboratory', 'scientists', 'for', 'half', 'a', 'century', 'now', 'we', 'have', 'been', 'conducting', 'experiments', 'in', 'our', 'virtual', 'laboratories', 'however', 'we', 'ourselves', 'have', 'remained', 'behind', 'the', 'keyboard', 'with', 'the', 'screen', 'of', 'the', 'monitor', 'separating', 'us', 'from', 'the', 'world', 'we', 'are', 'simulating', 'recently', '3d', 'online', 'technology', 'developed', 'first', 'for', 'games', 'but', 'now', 'deployed', 'in', 'virtual', 'worlds', 'like', 'second', 'life', 'is', 'beginning', 'to', 'make', 'it', 'possible', 'for', 'astrophysicists', 'to', 'enter', 'their', 'virtual', 'labs', 'themselves', 'in', 'virtual', 'form', 'as', 'avatars', 'this', 'has', 'several', 'advantages', 'from', 'new', 'possibilities', 'to', 'explore', 'the', 'results', 'of', 'the', 'simulations', 'to', 'a', 'shared', 'presence', 'in', 'a', 'virtual', 'lab', 'with', 'remote', 'collaborators', 'on', 'different', 'continents', 'i', 'will', 'report', 'my', 'experiences', 'with', 'the', 'use', 'of', 'qwaq', 'forums', 'a', 'virtual', 'world', 'developed', 'by', 'a', 'new', 'company', 'see', 'httpwwwqwaqcom']] | [-0.06329829514118288, 0.14513028749423298, -0.12060230742175634, 0.056340815245953274, -0.14821689627100285, -0.1506212517067605, 0.08187174761060176, 0.3962805233037112, -0.20344039479085635, -0.3479208027323087, 0.09313346342437946, -0.2969558568446771, -0.12099303492074105, 0.255256194312535, -0.0749708403625149, 0.024063600195862407, 0.05270336971103035, 0.0337122870437431, 0.0028473181408129843, -0.30012646808242754, 0.29108056834905494, 0.07410563560242349, 0.2560039579617322, 0.05702421274523297, 0.07864799053186934, -0.01829080135356767, -0.08580204413985794, -0.03256198310075288, -0.0688849242754175, 0.10102683971206664, 0.31138597254423384, 0.1907944125040758, 0.34877646336718365, -0.5022023017563633, -0.16449551299835244, 0.06814527188606084, 0.1212035806961886, 0.10612848214144614, -0.08778870567193929, -0.3120027664018438, 0.03659068610096443, -0.22103644815498158, -0.1672815705504242, -0.04724945456788281, 0.047211904359439796, -0.03407550081594167, -0.13630167242628358, -0.07754803540479022, -0.0739968749628475, 0.0855082213739924, -0.024443304574064222, -0.10457029321779174, 0.07152266229225442, 0.25091035526777544, 0.03127680914905847, -0.014854861365578382, 0.11941509175358724, -0.1410991780060271, -0.14894895470892708, 0.40342085568089014, -0.0004467887817122412, -0.11293557860247844, 0.2484839965344955, -0.1589464612391031, -0.15416598005273136, 0.07376654120822641, 0.21894105585252352, 0.09146535655641301, -0.17133489108889227, 0.054499959221426794, -0.03915724899051777, 0.1265865238845771, 0.07642422600546918, -0.036386575730656213, 0.2404686850875431, 0.18489948006888443, -0.026574933283850022, 0.10265776147927216, -0.07285408879603847, -0.13142492991735075, -0.22020854700954487, -0.22057225376182626, -0.14549013405562716, 0.04242629103425722, 0.06731805998290367, -0.13311889013671813, 0.3307159241827218, 0.1943478766425863, 0.1115252009315535, -0.0011758481727001514, 0.3296760435328416, -0.0154728975629183, 0.15114879266504225, 0.09818419527963418, 0.2882432108150518, 0.022363169134449187, 0.2279630229801785, -0.0700419446049301, 0.09301185188381536, -0.005930283814437476] |
712.1656 | Special Values of Generalized Polylogarithms | We study values of generalized polylogarithms at various points and
relationships among them. Polylogarithms of small weight at the points 1/2 and
-1 are completely investigated. We formulate a conjecture about the structure
of the linear space generated by values of generalized polylogarithms.
| math.NT math.CV | we study values of generalized polylogarithms at various points and relationships among them polylogarithms of small weight at the points 12 and 1 are completely investigated we formulate a conjecture about the structure of the linear space generated by values of generalized polylogarithms | [['we', 'study', 'values', 'of', 'generalized', 'polylogarithms', 'at', 'various', 'points', 'and', 'relationships', 'among', 'them', 'polylogarithms', 'of', 'small', 'weight', 'at', 'the', 'points', '12', 'and', '1', 'are', 'completely', 'investigated', 'we', 'formulate', 'a', 'conjecture', 'about', 'the', 'structure', 'of', 'the', 'linear', 'space', 'generated', 'by', 'values', 'of', 'generalized', 'polylogarithms']] | [-0.2025988304251155, 0.09815502820839715, -0.0451497808098793, 0.08642961396727451, -0.022336478929880055, -0.12982627609744668, 0.10601725994587638, 0.3051410644899967, -0.3194215638822941, -0.2759988036786401, 0.06595721860351257, -0.31765805662956176, -0.18536260414348785, 0.18393371847653112, 0.0009507665324003197, 0.04042066771842994, 0.021111270174557387, 0.021789248047266587, -0.08970178234889063, -0.34891659627278704, 0.4289567252231199, -0.0004925473842250053, 0.16845204620513804, 0.026456213144715444, 0.1368964370340109, 0.04804981622281809, -0.026152892796279387, -0.015598139000737086, -0.1553601308747433, 0.15825090919036505, 0.28106110685959806, 0.062308277285029724, 0.2929372622923882, -0.32054889912522117, -0.14870550750408235, 0.08353353352394215, 0.08490373189885948, 0.01461648878229912, 0.08117662591123304, -0.18936122898662158, 0.12972378884550445, -0.14403166069627502, -0.18285218274307458, -0.10894905182338038, -0.016642822190945924, 0.07673209242327789, -0.2552406652681638, 0.05727978193655957, -0.002887962126108103, 0.1515255564347256, -0.10403441038892366, -0.1970191094591174, -0.01429524167906493, 0.12775612857495977, 0.008071554586464582, -0.045369989341558066, 0.011390130089725866, -0.12918119160675032, -0.13369085321332827, 0.35022223706162253, -0.007595922234793042, -0.22060023620724678, 0.13896698034693336, -0.20557040884700972, -0.14557697169677636, 0.07051487025523255, 0.15176261544530822, 0.15499618975445628, -0.08519003845800018, 0.06977004235946076, -0.06772867671408972, 0.1007950023401442, 0.2292793084390808, 0.012039292614560488, 0.20791476718041785, 0.014262321686675383, -0.038379767140763445, 0.1485713051935268, -0.05023593287224622, -0.09288719534700693, -0.33910297498453496, -0.1340144357622363, -0.14648677521320277, 0.04768005663225817, -0.14824373958304762, -0.11236384663687543, 0.4097891299942032, 0.10989300274225168, 0.26315462317447674, 0.10516316398198522, 0.20074752380335054, 0.1675480214532378, 0.09431968625028465, 0.061732165732009465, 0.11824648615059465, 0.15754811132738236, 0.022517131858093793, -0.12233444105638841, -0.03395235887390215, 0.1466490176484682] |
712.1657 | Entangling the ro-vibrational modes of a macroscopic mirror using
radiation pressure | We consider the dynamics of a vibrating and rotating end-mirror of an optical
Fabry-P{\'erot} cavity that can sustain Laguerre-Gaussian modes. We demonstrate
theoretically that since the intra-cavity field carries linear as well as
angular momentum, radiation pressure can create bipartite entanglement between
a vibrational and a rotational mode of the mirror. Further we show that the
ratio of vibrational and rotational couplings with the radiation field can
easily be adjusted experimentally, which makes the generation and detection of
entanglement robust to uncertainties in the cavity manufacture. This
constitutes the first proposal to demonstrate entanglement between two
qualitatively different degrees of freedom of the same macroscopic object.
| quant-ph | we consider the dynamics of a vibrating and rotating endmirror of an optical fabryperot cavity that can sustain laguerregaussian modes we demonstrate theoretically that since the intracavity field carries linear as well as angular momentum radiation pressure can create bipartite entanglement between a vibrational and a rotational mode of the mirror further we show that the ratio of vibrational and rotational couplings with the radiation field can easily be adjusted experimentally which makes the generation and detection of entanglement robust to uncertainties in the cavity manufacture this constitutes the first proposal to demonstrate entanglement between two qualitatively different degrees of freedom of the same macroscopic object | [['we', 'consider', 'the', 'dynamics', 'of', 'a', 'vibrating', 'and', 'rotating', 'endmirror', 'of', 'an', 'optical', 'fabryperot', 'cavity', 'that', 'can', 'sustain', 'laguerregaussian', 'modes', 'we', 'demonstrate', 'theoretically', 'that', 'since', 'the', 'intracavity', 'field', 'carries', 'linear', 'as', 'well', 'as', 'angular', 'momentum', 'radiation', 'pressure', 'can', 'create', 'bipartite', 'entanglement', 'between', 'a', 'vibrational', 'and', 'a', 'rotational', 'mode', 'of', 'the', 'mirror', 'further', 'we', 'show', 'that', 'the', 'ratio', 'of', 'vibrational', 'and', 'rotational', 'couplings', 'with', 'the', 'radiation', 'field', 'can', 'easily', 'be', 'adjusted', 'experimentally', 'which', 'makes', 'the', 'generation', 'and', 'detection', 'of', 'entanglement', 'robust', 'to', 'uncertainties', 'in', 'the', 'cavity', 'manufacture', 'this', 'constitutes', 'the', 'first', 'proposal', 'to', 'demonstrate', 'entanglement', 'between', 'two', 'qualitatively', 'different', 'degrees', 'of', 'freedom', 'of', 'the', 'same', 'macroscopic', 'object']] | [-0.162616528711229, 0.22726815083750002, -0.10660639804137766, -0.011757601408358171, -0.044852395357458656, -0.14274837794045936, -0.0022409929463393847, 0.39659057504866485, -0.2509153066159068, -0.31269609082911937, 0.0070626678830451985, -0.22774470841758093, -0.1014864864882152, 0.18764934144070688, -0.03789379344901667, 0.04519012399052955, 0.035311972814664805, 0.0037973896327938112, -0.01296902675717577, -0.14624041741283364, 0.27865754865672226, 0.06502874542625164, 0.30813804237207154, 0.06396613911866157, 0.13823127189326048, -0.02971000630926903, 0.06823118588061265, -0.0028823937359705285, -0.10240814954646202, 0.08678728655279386, 0.21974112521329858, 0.06142588589727035, 0.22913719494036347, -0.43100174961892784, -0.1970110132297466, 0.08283336210187595, 0.16945504714330695, 0.20855052349539824, -0.013515538918205871, -0.2683072398979006, -0.02777312031753783, -0.1649744876150815, -0.15188224524488006, -0.12888481843127114, -0.0033797953862099435, 0.0045756866478905926, -0.26463546361422763, 0.05925184336736939, 0.030182270746115805, 0.04756049466328168, -0.037467452886356216, -0.015896703243993643, -0.09466108889977957, 0.07641314285069283, 0.01895311126322925, -0.010662174873704196, 0.17087284300228106, -0.12888970669965208, -0.12648108039701464, 0.3947152878807963, -0.12064977556923931, -0.18164741722120079, 0.16932074558143592, -0.17846165772061795, -0.030805573344037357, 0.09451360268439254, 0.15947957766541052, 0.10745317376447173, -0.09300241184218805, -0.028496696615925514, -0.02088656656022342, 0.21965691854052669, 0.10606518805132441, 0.13369322214099877, 0.2748363289788787, 0.12190626305088682, 0.02081958838861506, 0.2503724616242766, -0.13763006259511523, -0.06791132120942732, -0.28513837742777365, -0.17129952264598236, -0.21232003161990093, 0.04581090005307968, -0.07602477690396074, -0.11067213702349449, 0.4234153899311457, 0.14032051623425498, 0.16388371646544844, 0.008127361765561872, 0.3340196108691535, 0.09127898728431044, 0.07758375561690696, 0.04719432482296433, 0.35936676132721157, 0.15902296389576118, 0.054772676038995105, -0.3453528477177727, -0.0363204259609909, -0.02805149380144013] |
712.1658 | Program algebra with a jump-shift instruction | We study sequential programs that are instruction sequences with jump-shift
instructions in the setting of PGA (ProGram Algebra). Jump-shift instructions
preceding a jump instruction increase the position to jump to. The jump-shift
instruction is not found in programming practice. Its merit is that the
expressive power of PGA extended with the jump-shift instruction, is not
reduced if the reach of jump instructions is bounded. This is used to show that
there exists a finite-state execution mechanism that by making use of a counter
can produce each finite-state thread from some program that is a finite or
periodic infinite sequence of instructions from a finite set.
| cs.PL | we study sequential programs that are instruction sequences with jumpshift instructions in the setting of pga program algebra jumpshift instructions preceding a jump instruction increase the position to jump to the jumpshift instruction is not found in programming practice its merit is that the expressive power of pga extended with the jumpshift instruction is not reduced if the reach of jump instructions is bounded this is used to show that there exists a finitestate execution mechanism that by making use of a counter can produce each finitestate thread from some program that is a finite or periodic infinite sequence of instructions from a finite set | [['we', 'study', 'sequential', 'programs', 'that', 'are', 'instruction', 'sequences', 'with', 'jumpshift', 'instructions', 'in', 'the', 'setting', 'of', 'pga', 'program', 'algebra', 'jumpshift', 'instructions', 'preceding', 'a', 'jump', 'instruction', 'increase', 'the', 'position', 'to', 'jump', 'to', 'the', 'jumpshift', 'instruction', 'is', 'not', 'found', 'in', 'programming', 'practice', 'its', 'merit', 'is', 'that', 'the', 'expressive', 'power', 'of', 'pga', 'extended', 'with', 'the', 'jumpshift', 'instruction', 'is', 'not', 'reduced', 'if', 'the', 'reach', 'of', 'jump', 'instructions', 'is', 'bounded', 'this', 'is', 'used', 'to', 'show', 'that', 'there', 'exists', 'a', 'finitestate', 'execution', 'mechanism', 'that', 'by', 'making', 'use', 'of', 'a', 'counter', 'can', 'produce', 'each', 'finitestate', 'thread', 'from', 'some', 'program', 'that', 'is', 'a', 'finite', 'or', 'periodic', 'infinite', 'sequence', 'of', 'instructions', 'from', 'a', 'finite', 'set']] | [-0.1436434640593472, 0.1220149640437393, -0.11428164225071669, 0.08478937721256877, -0.1756177765627702, -0.19311432172766044, 0.0901048174870777, 0.40938637983940895, -0.31465191889022076, -0.27112806292162056, 0.1293081556557722, -0.22130523025102558, -0.08752550955285274, 0.21214202921504954, -0.12386081742921046, 0.006727820382608721, 0.13828088210984354, 0.10122574762929054, -0.03682021693149138, -0.27955560533418544, 0.24101206246940862, 0.026676559395023756, 0.19498702489238764, -0.023918047977522724, 0.12267635904607319, -0.025993754674813577, 0.02274465544947556, 0.010530347527847404, -0.0527780237713679, 0.0739816243139406, 0.3358871461025306, 0.2501446584683089, 0.3354377218832572, -0.4143076637316318, -0.0959046394287032, 0.08688101414591073, 0.08653428069803687, 0.10422248633667117, -0.014314112919826238, -0.2185119211640475, 0.13380841307253355, -0.18609676026140473, -0.024503847832481065, -0.0294849811033124, 0.022696205696445846, 0.03715658103381949, -0.25503434965032196, -0.06503520544086183, 0.127234065314267, 0.09459940261163172, 0.009220175253271701, -0.07750383275782778, -0.04581153284802678, 0.09344569857764456, 0.004510496534584534, 0.08164305521308311, 0.14824619843580183, -0.047967249729360145, -0.21786870477455003, 0.35802755169570444, -0.049396772913279985, -0.22121708528803927, 0.1559688191794391, -0.1298357948572153, -0.15481619617147815, 0.15696246301134428, 0.1278708849811838, 0.07827698146658284, -0.12768362343666098, 0.10185286093148448, -0.05174106077424118, 0.23785888357531457, 0.07692968904351195, -0.04942973720663715, 0.18684429207018444, 0.16874195191831814, 0.04739889590335744, 0.21584199038112448, 0.02045849883662803, -0.107896322559654, -0.3354741308330891, -0.16586764115019745, -0.14108693494151037, 0.0013851572230036946, -0.030248639005280676, -0.20176649322910678, 0.33852644650531666, 0.16094160927237855, 0.1208450701974687, 0.15897941637252058, 0.30046661499932054, 0.1425751718461037, 0.13065755237004764, 0.11396999827453068, 0.051306147908049056, 0.046616345484341896, 0.12015752910325925, -0.21438606885217484, 0.13617870038752222, 0.03690035709088468] |
712.1659 | Non-linear and Linear Broadcasting with QoS Requirements: Tractable
Approaches for Bounded Channel Uncertainties | We consider the downlink of a cellular system in which the base station
employs multiple transmit antennas, each receiver has a single antenna, and the
users specify. We consider communication schemes in which the users have
certain Quality of Service (QoS) requirements. We study the design of robust
broadcasting schemes that minimize the transmission power necessary to
guarantee that the QoS requirements are satisfied for all channels within
bounded uncertainty regions around the transmitter's estimate of each user's
channel. Each user's QoS requirement is formulated as a constraint on the mean
square error (MSE) in its received signal, and we show that these MSE
constraints imply constraints on the received SINR. Using the MSE constraints,
we present a unified design approach for robust linear and non-linear
transceivers with QoS requirements. The proposed designs overcome the
limitations of existing approaches that provide conservative designs or are
only applicable to the case of linear precoding. Furthermore, we provide
computationally-efficient design formulations for a rather general model of
channel uncertainty that subsumes many natural choices for the uncertainty
region. We also consider the problem of the robust counterpart to precoding
schemes that maximize the fidelity of the weakest user's signal subject to a
power constraint. For this problem, we provide quasi-convex formulations, for
both linear and non-linear transceivers, that can be efficiently solved using a
one-dimensional bisection search. Our numerical results demonstrate that in the
presence of CSI uncertainty, the proposed designs provide guarantees for a
larger range of QoS requirements than the existing approaches, and consume
require less transmission power in providing these guarantees.
| cs.IT math.IT | we consider the downlink of a cellular system in which the base station employs multiple transmit antennas each receiver has a single antenna and the users specify we consider communication schemes in which the users have certain quality of service qos requirements we study the design of robust broadcasting schemes that minimize the transmission power necessary to guarantee that the qos requirements are satisfied for all channels within bounded uncertainty regions around the transmitters estimate of each users channel each users qos requirement is formulated as a constraint on the mean square error mse in its received signal and we show that these mse constraints imply constraints on the received sinr using the mse constraints we present a unified design approach for robust linear and nonlinear transceivers with qos requirements the proposed designs overcome the limitations of existing approaches that provide conservative designs or are only applicable to the case of linear precoding furthermore we provide computationallyefficient design formulations for a rather general model of channel uncertainty that subsumes many natural choices for the uncertainty region we also consider the problem of the robust counterpart to precoding schemes that maximize the fidelity of the weakest users signal subject to a power constraint for this problem we provide quasiconvex formulations for both linear and nonlinear transceivers that can be efficiently solved using a onedimensional bisection search our numerical results demonstrate that in the presence of csi uncertainty the proposed designs provide guarantees for a larger range of qos requirements than the existing approaches and consume require less transmission power in providing these guarantees | [['we', 'consider', 'the', 'downlink', 'of', 'a', 'cellular', 'system', 'in', 'which', 'the', 'base', 'station', 'employs', 'multiple', 'transmit', 'antennas', 'each', 'receiver', 'has', 'a', 'single', 'antenna', 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712.166 | Low-lying excitations at the rare-earth site due to rattling motion in
the filled skutterudite LaOs_4Sb_{12} revealed by ^{139}La NMR and
^{121/123}Sb NQR | We report experimental results of nuclear magnetic resonance (NMR) at the La
site and nuclear quadrupole resonance (NQR) at the Sb site in the filled
skutterudite LaOs$_4$Sb$_{12}$. We found that the nuclear spin-lattice
relaxation rate divided by temperature $1/T_1T$ at the La site exhibits a
different temperature dependence from that at the Sb site. Although $1/T_1T$ at
the Sb site is explained by the Korringa mechanism, $1/T_1T$ at the La site
exhibits a broad maximum around 50 K, showing the presence of an additional
contribution at the La site. The additional low-lying excitations observed at
the La site can be understood with the relaxation from anharmonic phonons due
to the rattling motion of the La atoms.
| cond-mat.str-el | we report experimental results of nuclear magnetic resonance nmr at the la site and nuclear quadrupole resonance nqr at the sb site in the filled skutterudite laos_4sb_12 we found that the nuclear spinlattice relaxation rate divided by temperature 1t_1t at the la site exhibits a different temperature dependence from that at the sb site although 1t_1t at the sb site is explained by the korringa mechanism 1t_1t at the la site exhibits a broad maximum around 50 k showing the presence of an additional contribution at the la site the additional lowlying excitations observed at the la site can be understood with the relaxation from anharmonic phonons due to the rattling motion of the la atoms | [['we', 'report', 'experimental', 'results', 'of', 'nuclear', 'magnetic', 'resonance', 'nmr', 'at', 'the', 'la', 'site', 'and', 'nuclear', 'quadrupole', 'resonance', 'nqr', 'at', 'the', 'sb', 'site', 'in', 'the', 'filled', 'skutterudite', 'laos_4sb_12', 'we', 'found', 'that', 'the', 'nuclear', 'spinlattice', 'relaxation', 'rate', 'divided', 'by', 'temperature', '1t_1t', 'at', 'the', 'la', 'site', 'exhibits', 'a', 'different', 'temperature', 'dependence', 'from', 'that', 'at', 'the', 'sb', 'site', 'although', '1t_1t', 'at', 'the', 'sb', 'site', 'is', 'explained', 'by', 'the', 'korringa', 'mechanism', '1t_1t', 'at', 'the', 'la', 'site', 'exhibits', 'a', 'broad', 'maximum', 'around', '50', 'k', 'showing', 'the', 'presence', 'of', 'an', 'additional', 'contribution', 'at', 'the', 'la', 'site', 'the', 'additional', 'lowlying', 'excitations', 'observed', 'at', 'the', 'la', 'site', 'can', 'be', 'understood', 'with', 'the', 'relaxation', 'from', 'anharmonic', 'phonons', 'due', 'to', 'the', 'rattling', 'motion', 'of', 'the', 'la', 'atoms']] | [-0.097193840718507, 0.2173409456928343, -0.0007371103455280436, 0.05069522267500549, 0.03647621588556674, -0.1524905729798022, 0.112898258797439, 0.3360380094321766, -0.2877029781109364, -0.27588201483615254, -0.01390440430158974, -0.3828997196276383, -0.03180383906924519, 0.14628035106629952, 0.08743754674776874, -0.15129040099343222, -0.06057307306388072, 0.07341402111542893, -0.06787492530340136, -0.21203306753284715, 0.2525698543076628, 0.17985630193564656, 0.31743451106715304, 0.11026138866898315, 0.06039315369381602, 0.010527735720549164, 0.1410588619755172, -0.006760938855787289, -0.14165848615674145, 0.0024934505586159126, 0.2478162673029021, -0.03878208617519202, 0.19187206868483717, -0.40872811911434964, -0.13342121501999168, -0.00874412820899281, 0.11948985068813962, 0.1688550710196382, -0.08698215944981523, -0.2766860407407813, 0.02595919476629331, -0.08745959774964361, -0.1299766636893137, -0.03375460013169153, -0.04641798939676313, -0.010689143388499987, -0.2571170938779311, 0.17848369082564425, 0.06815644988693811, 0.17392210529089489, -0.12349291454502863, -0.22373061428039237, -0.05657575260606948, 0.015060661127790809, 0.07076907258055269, 0.09283482696026049, 0.20505271048349297, 0.01279332315356567, -0.05817142927794364, 0.3269376295361796, -0.12261968527535169, 0.05432667048519541, 0.18340832661387735, -0.2930315890638479, -0.1438321057578613, 0.24113573299335508, 0.07365498382343252, 0.05645520204340975, -0.09248062745057817, 0.09531866987426524, 0.03169013393424644, 0.20581873931825675, 0.03454077325295657, 0.04070475167827681, 0.24718219651198337, 0.18042634076495045, 0.005554495395386013, 0.09440280944972042, -0.1934426331186089, -0.023307560256618107, -0.23472220656172982, -0.10508264701588657, -0.21797546586182354, 0.038019005951857004, -0.06391492830416295, -0.06721549193326641, 0.36460914813656486, 0.024020900018011413, 0.19548432345919567, -0.09554984822170809, 0.15415917374273955, 0.10175895635470154, 0.1025319203597911, 0.04532089222078051, 0.24850966993735396, 0.11627060192404315, 0.17782733408766316, -0.4275951140624439, 0.08419940737477535, 0.05353732474132216] |
712.1661 | Entanglement of distant flux qubits mediated by non-classical
electromagnetic field | The mechanism for entanglement of two flux qubits each interacting with a
single mode electromagnetic field is discussed. By performing a Bell state
measurements (BSM) on photons we find the two qubits in an entangled state
depending on the system parameters. We discuss the results for two initial
states and take into consideration the influence of decoherence.
| quant-ph | the mechanism for entanglement of two flux qubits each interacting with a single mode electromagnetic field is discussed by performing a bell state measurements bsm on photons we find the two qubits in an entangled state depending on the system parameters we discuss the results for two initial states and take into consideration the influence of decoherence | [['the', 'mechanism', 'for', 'entanglement', 'of', 'two', 'flux', 'qubits', 'each', 'interacting', 'with', 'a', 'single', 'mode', 'electromagnetic', 'field', 'is', 'discussed', 'by', 'performing', 'a', 'bell', 'state', 'measurements', 'bsm', 'on', 'photons', 'we', 'find', 'the', 'two', 'qubits', 'in', 'an', 'entangled', 'state', 'depending', 'on', 'the', 'system', 'parameters', 'we', 'discuss', 'the', 'results', 'for', 'two', 'initial', 'states', 'and', 'take', 'into', 'consideration', 'the', 'influence', 'of', 'decoherence']] | [-0.1996898931173379, 0.24579754037391435, -0.051509062743239235, 0.03172596100627918, 0.0312042407070597, -0.20056069098216922, 0.052568370263958185, 0.3654601404018569, -0.17187765120105356, -0.27379858095133514, 0.046553423944779, -0.2944188741716891, -0.0026664052714119877, 0.20873966110510783, 0.0683372363513499, 0.04780225374065993, 0.10486404924539097, 0.05389234242683048, -0.04755259829720384, -0.2318760215125063, 0.3762049469116487, -0.004225840800229395, 0.29404696135928754, 0.019300253310224467, 0.1250463322523916, 0.05232454559831112, 0.03931537711698758, -0.03489857140863151, -0.09492227180223715, 0.03473101742055038, 0.1635843802308827, 0.12690471702157274, 0.2436901389768249, -0.4857607955407155, -0.1986516003513284, 0.06964551683784903, 0.09968799331405184, 0.18448117607387535, -0.034537928109465724, -0.3419329986433711, -0.06645460596732926, -0.15489962141503366, -0.06970242235254039, -0.05243269079609921, -0.0022112073585096943, -0.04320770011920678, -0.28290789097286106, 0.03227452484466005, 0.028849917488466752, -0.0020855852124983805, -0.05929579012291996, -0.07337810509846333, 0.012053116469791061, 0.10789775155513269, 0.007950248470399202, -0.03520602818676516, 0.1777813097527414, -0.161298085559617, -0.17554645969025923, 0.32013149177165406, -0.04891640436018638, -0.24373842932676015, 0.15196784261385338, -0.12344274116810738, -0.13368845602350407, 0.06102267635185598, 0.1437773261905501, 0.07476032473016203, -0.14180568376915498, 0.0050941507174764155, -0.01690257136432225, 0.2191706972948292, 0.003981624734016103, 0.14910567100895078, 0.23111463831574247, 0.14154641836750925, 0.04116207952284368, 0.2232089250373017, -0.0892203791279411, -0.11938664491958263, -0.33882969055782286, -0.20021833107283896, -0.21511266423183037, 0.0868443489368809, -0.07047729680402483, -0.08585713524371386, 0.47613897024278057, 0.12687998892853788, 0.1914646458534295, -0.05506410972999507, 0.2756053812540414, 0.11332732879989699, 0.02378106947269356, 0.056843247280962635, 0.33901202449934525, 0.13166346845192542, 0.02246714270624675, -0.28947352775650326, 0.019100319675839784, 0.00018156656848364756] |
712.1662 | Link Scheduling in STDMA Wireless Networks: A Line Graph Approach | We consider point to point link scheduling in Spatial Time Division Multiple
Access (STDMA) wireless networks under the physical interference model. We
propose a novel link scheduling algorithm based on a line graph representation
of the network, by embedding the interferences between pairs of nodes into the
edge weights of the line graph. Our algorithm achieves lower schedule length
and lower run time complexity than existing algorithms.
| cs.NI | we consider point to point link scheduling in spatial time division multiple access stdma wireless networks under the physical interference model we propose a novel link scheduling algorithm based on a line graph representation of the network by embedding the interferences between pairs of nodes into the edge weights of the line graph our algorithm achieves lower schedule length and lower run time complexity than existing algorithms | [['we', 'consider', 'point', 'to', 'point', 'link', 'scheduling', 'in', 'spatial', 'time', 'division', 'multiple', 'access', 'stdma', 'wireless', 'networks', 'under', 'the', 'physical', 'interference', 'model', 'we', 'propose', 'a', 'novel', 'link', 'scheduling', 'algorithm', 'based', 'on', 'a', 'line', 'graph', 'representation', 'of', 'the', 'network', 'by', 'embedding', 'the', 'interferences', 'between', 'pairs', 'of', 'nodes', 'into', 'the', 'edge', 'weights', 'of', 'the', 'line', 'graph', 'our', 'algorithm', 'achieves', 'lower', 'schedule', 'length', 'and', 'lower', 'run', 'time', 'complexity', 'than', 'existing', 'algorithms']] | [-0.2636145772273416, 0.0006880143087412884, -0.07214124216489605, 0.0230190927968986, -0.09334319089052838, -0.22922624454402657, 0.18101033162492425, 0.4642969505555594, -0.27641519270281295, -0.30648284672356363, 0.02865972788135674, -0.20116369429030526, -0.19485212883342112, 0.12414223910309374, -0.07173223458856011, 0.06270297672755933, 0.09978499812588318, 0.04084334400162768, 0.005095957444786136, -0.24860267359728633, 0.3192147995873507, 0.07269005647012547, 0.3708222948793155, 0.027227248450039206, 0.07768967320557002, 0.04994445208654697, -0.05888921332392675, -0.02012432573898348, -0.09927189874170876, 0.08764477584288637, 0.2566801918420329, 0.19843984109439902, 0.28204166069070796, -0.4662604395355751, -0.23264057717438955, 0.15180612654327902, 0.1551947685153182, 0.04609626216063304, 0.022665641407843735, -0.26194876476899903, 0.10852198885517444, -0.13026096028234088, 0.030843477466824785, 0.0468275624591468, -0.04253160861779505, -0.002458064636187767, -0.3027712996048269, -0.013002785353629446, 0.008687939484422999, 0.01039473641552587, -0.009857807315385608, -0.11038370283820959, 0.05293821531292329, 0.15170130259426895, -0.055128626841634734, 0.031028121313664007, 0.09931110275158686, -0.08880646060457204, -0.2543762164718624, 0.3572042404826897, 0.003812581108519877, -0.18294498227091868, 0.15988166399870013, -0.026496505510729195, -0.14188485552292707, 0.17485737060405201, 0.27448019711995747, 0.05578130503087791, -0.12523930150765314, 0.030437352683972012, -0.04500078102712756, 0.14768675173052462, 0.08576971923571024, 0.09176531952541711, 0.13466401976435932, 0.23072910281037218, 0.17640720784608552, 0.14598855551387838, -0.11019556163532186, -0.12763078912481, -0.2028984214994125, -0.11992941053111607, -0.2311369057800343, -0.027070206812402204, -0.18278765959865864, -0.12045652295615691, 0.4410561021806589, 0.1580195560940166, 0.22532691514647718, 0.1862608061046965, 0.38919113094070507, 0.0811797805432814, 0.061857343109241174, 0.19826142489910126, 0.0759724214040577, 0.0481162660584938, 0.1178091189488699, -0.20535761864383273, 0.05472869104914256, 0.1203013265335154] |
712.1663 | Efficient blind search: Optimal power of detection under computational
cost constraints | Some astronomy projects require a blind search through a vast number of
hypotheses to detect objects of interest. The number of hypotheses to test can
be in the billions. A naive blind search over every single hypothesis would be
far too costly computationally. We propose a hierarchical scheme for blind
search, using various "resolution" levels. At lower resolution levels,
"regions" of interest in the search space are singled out with a low
computational cost. These regions are refined at intermediate resolution levels
and only the most promising candidates are finally tested at the original fine
resolution. The optimal search strategy is found by dynamic programming. We
demonstrate the procedure for pulsar search from satellite gamma-ray
observations and show that the power of the naive blind search can almost be
matched with the hierarchical scheme while reducing the computational burden by
more than three orders of magnitude.
| stat.ME stat.AP | some astronomy projects require a blind search through a vast number of hypotheses to detect objects of interest the number of hypotheses to test can be in the billions a naive blind search over every single hypothesis would be far too costly computationally we propose a hierarchical scheme for blind search using various resolution levels at lower resolution levels regions of interest in the search space are singled out with a low computational cost these regions are refined at intermediate resolution levels and only the most promising candidates are finally tested at the original fine resolution the optimal search strategy is found by dynamic programming we demonstrate the procedure for pulsar search from satellite gammaray observations and show that the power of the naive blind search can almost be matched with the hierarchical scheme while reducing the computational burden by more than three orders of magnitude | [['some', 'astronomy', 'projects', 'require', 'a', 'blind', 'search', 'through', 'a', 'vast', 'number', 'of', 'hypotheses', 'to', 'detect', 'objects', 'of', 'interest', 'the', 'number', 'of', 'hypotheses', 'to', 'test', 'can', 'be', 'in', 'the', 'billions', 'a', 'naive', 'blind', 'search', 'over', 'every', 'single', 'hypothesis', 'would', 'be', 'far', 'too', 'costly', 'computationally', 'we', 'propose', 'a', 'hierarchical', 'scheme', 'for', 'blind', 'search', 'using', 'various', 'resolution', 'levels', 'at', 'lower', 'resolution', 'levels', 'regions', 'of', 'interest', 'in', 'the', 'search', 'space', 'are', 'singled', 'out', 'with', 'a', 'low', 'computational', 'cost', 'these', 'regions', 'are', 'refined', 'at', 'intermediate', 'resolution', 'levels', 'and', 'only', 'the', 'most', 'promising', 'candidates', 'are', 'finally', 'tested', 'at', 'the', 'original', 'fine', 'resolution', 'the', 'optimal', 'search', 'strategy', 'is', 'found', 'by', 'dynamic', 'programming', 'we', 'demonstrate', 'the', 'procedure', 'for', 'pulsar', 'search', 'from', 'satellite', 'gammaray', 'observations', 'and', 'show', 'that', 'the', 'power', 'of', 'the', 'naive', 'blind', 'search', 'can', 'almost', 'be', 'matched', 'with', 'the', 'hierarchical', 'scheme', 'while', 'reducing', 'the', 'computational', 'burden', 'by', 'more', 'than', 'three', 'orders', 'of', 'magnitude']] | [-0.08986979344806295, 0.07460830630479406, -0.06980117172806537, 0.09851617812480433, -0.09530770841328912, -0.14402745227283187, 0.10699965391142217, 0.39063262106047, -0.2553718305896164, -0.42930852371740014, 0.14412020339968626, -0.23084196475755475, -0.0804880514983343, 0.22147615975540846, -0.0218086896148472, 0.02633615653748203, 0.09195063798369406, 0.0017911691875643519, -0.06110295251510999, -0.2747047390550182, 0.23897892923878938, 0.12888898363030732, 0.2693722565875274, -0.035027897607356515, 0.0714946413183049, -0.044768774875580036, -0.09866811292348047, 0.014653687735131227, -0.04397955157480893, 0.10836181292718608, 0.30136965354426115, 0.17998252672538773, 0.31447643724155344, -0.38830119273079117, -0.19501565842034474, 0.13975261560679503, 0.16646990632121642, 0.09083340884575442, -0.06473463931496093, -0.29181937157648474, 0.1268905795016645, -0.13850023781191811, -0.08461860710219161, -0.10194185334863778, -0.04081252067388125, -0.005468886275855467, -0.24978617365688902, 0.03462306398592175, -0.030168401351683354, 0.03839636726100763, -0.006068595559081088, -0.14076566552800726, 0.01598491645274582, 0.08888951560788572, 0.016592154172902978, 0.00873746009135287, 0.10133715641440837, -0.15954891418757505, -0.15429224947958622, 0.3786722088538825, -0.013230597599643148, -0.18247471447102726, 0.22689595591908399, -0.1342489954645503, -0.1805522151878231, 0.21368671698840208, 0.15826012267035827, 0.16403051980528727, -0.13830493697386287, 0.045228716350608655, -0.018750859067252237, 0.22126973631045438, 0.07548606685404219, 0.05032099829667745, 0.2538736036481106, 0.2180715269131637, 0.11516878207864827, 0.11802369750771442, -0.18192835140029248, -0.04636602606528681, -0.24794447872618672, -0.11520409324423295, -0.16157251930068414, -0.013711775745558616, -0.09032187876845742, -0.08048834937484298, 0.3470557938643938, 0.18265466285193313, 0.18141073483833406, 0.06990526206408666, 0.3272633141429763, 0.08692957509360084, 0.11453212394932451, 0.07413068255856123, 0.22656264371491414, -0.006724299553603138, 0.06783469724357255, -0.15852254790043432, 0.06374621093400741, 0.035115343241072065] |
712.1664 | Direct Measurements of the Branching Fractions for Inclusive $K^\pm$ and
Inclusive Semileptonic Decays of $D^+$ and $D^0$ Mesons | With singly-tagged $\bar D$ samples selected from the data collected at and
around 3.773 GeV with the BESII detector at the BEPC collider, we have measured
the branching fractions for the inclusive $K^\pm$ decays of $D^+$ and $D^0$
mesons, which are $BF(D^+\to K^-X) = (24.7 \pm 1.3 \pm 1.2)%$, $BF(D^+\to K^+X)
= (6.1 \pm 0.9 \pm 0.4) %$, $BF(D^0\to K^-X) = (57.8 \pm 1.6 \pm 3.2) %$ and
$BF(D^0\to K^+X) = (3.5 \pm 0.7 \pm 0.3) %$, respectively. We have also
measured the branching fractions for the inclusive semileptonic decays of $D^+$
and $D^0$ mesons to be $BF(D^+ \to e^+ X)=(15.2 \pm 0.9 \pm 0.8)%$ and $BF(D^0
\to e^+ X) =(6.3 \pm 0.7 \pm 0.4) %$. These yield the ratio of their partial
widths to be $\Gamma(D^+ \to e^+X)/\Gamma(D^0 \to e^+X)=0.95 \pm 0.12 \pm
0.07$.
| hep-ex | with singlytagged bar d samples selected from the data collected at and around 3773 gev with the besii detector at the bepc collider we have measured the branching fractions for the inclusive kpm decays of d and d0 mesons which are bfdto kx 247 pm 13 pm 12 bfdto kx 61 pm 09 pm 04 bfd0to kx 578 pm 16 pm 32 and bfd0to kx 35 pm 07 pm 03 respectively we have also measured the branching fractions for the inclusive semileptonic decays of d and d0 mesons to be bfd to e x152 pm 09 pm 08 and bfd0 to e x 63 pm 07 pm 04 these yield the ratio of their partial widths to be gammad to exgammad0 to ex095 pm 012 pm 007 | [['with', 'singlytagged', 'bar', 'd', 'samples', 'selected', 'from', 'the', 'data', 'collected', 'at', 'and', 'around', '3773', 'gev', 'with', 'the', 'besii', 'detector', 'at', 'the', 'bepc', 'collider', 'we', 'have', 'measured', 'the', 'branching', 'fractions', 'for', 'the', 'inclusive', 'kpm', 'decays', 'of', 'd', 'and', 'd0', 'mesons', 'which', 'are', 'bfdto', 'kx', '247', 'pm', '13', 'pm', '12', 'bfdto', 'kx', '61', 'pm', '09', 'pm', '04', 'bfd0to', 'kx', '578', 'pm', '16', 'pm', '32', 'and', 'bfd0to', 'kx', '35', 'pm', '07', 'pm', '03', 'respectively', 'we', 'have', 'also', 'measured', 'the', 'branching', 'fractions', 'for', 'the', 'inclusive', 'semileptonic', 'decays', 'of', 'd', 'and', 'd0', 'mesons', 'to', 'be', 'bfd', 'to', 'e', 'x152', 'pm', '09', 'pm', '08', 'and', 'bfd0', 'to', 'e', 'x', '63', 'pm', '07', 'pm', '04', 'these', 'yield', 'the', 'ratio', 'of', 'their', 'partial', 'widths', 'to', 'be', 'gammad', 'to', 'exgammad0', 'to', 'ex095', 'pm', '012', 'pm', '007']] | [-0.09459408950314958, 0.1947394816064033, -0.05625828046414281, -0.029182568012478472, 0.07439036114814401, -0.16390115671454608, 0.09219714243771086, 0.3054103334160412, -0.1820089316324276, -0.40055166482299315, -0.024288536112035523, -0.5101996260781249, 0.19920155519087399, 0.14481100428481625, 0.04878348923687424, 0.08296351301475983, 0.007684147924560459, -0.03518092262895167, -0.08783689223057708, -0.18720764546271632, 0.042764824885530635, -0.020960038594369377, 0.16300619413152712, 0.056068784111187236, 0.014591218398868287, -0.041943544050396867, -0.025249824726155827, -0.12380680747079749, -0.2912374637794031, -0.004552600204850696, 0.22714328447341167, 0.037230157309031786, 0.08485247316856344, -0.16016168173739076, 0.12220114623705129, 0.1931461890955933, 0.20360741696610046, -0.12671984047844162, 0.05589648155385957, -0.35458904846782696, 0.27992472440755667, -0.19011027106874379, -0.07536235912663847, 0.07214327992386177, 0.17520168242083878, -0.1252529909286429, -0.37154140683407544, 0.22004665103873058, -0.13934741252172395, 0.15188129608002843, -0.032810280958441, -0.4240220150745967, -0.07222865026506807, -0.060464598629780174, 0.020691118930943875, 0.27553326790631916, 0.15888743188247836, 0.02490996937228351, -0.12363756905669863, 0.3861839925917257, -0.10439338817964543, -0.10730269662409771, 0.06655173671643148, -0.2751778497892831, -0.12468823775680375, 0.2777684864141986, 0.2433841802559386, 0.06971464113639511, -0.16414003800444243, 0.04454257934180112, 0.0072423510229950696, 0.28549733307181285, 0.0858405780461969, 0.06885139205093894, 0.17701206933398841, 0.08909827110870201, -0.08371589750740208, -0.07852022997455813, -0.24369423817686675, 0.07667108349689916, -0.3515060154169391, -0.08842543594293617, 0.0044265400995930826, 0.2310129567088575, -0.1442162887211116, 0.0830428729935827, 0.2674240682649763, 0.023634880984655948, 0.3726900001095624, 0.03542683068799841, 0.1817646721287967, 0.08748197675283466, -0.008688257015926544, 0.1062738277127393, 0.3080795886574172, 0.2685021937770002, 0.15696625189245247, -0.19909608480520546, -0.020341791140166026, -0.05922631824882153] |
712.1665 | On the constant in the Mertens product for arithmetic progressions. II.
Numerical values | We give explicit numerical values with 100 decimal digits for the constant in
the Mertens product over primes in the arithmetic progressions $a \bmod q$, for
$q \in \{3$, ..., $100\}$ and $(a, q) = 1$.
| math.NT | we give explicit numerical values with 100 decimal digits for the constant in the mertens product over primes in the arithmetic progressions a bmod q for q in 3 100 and a q 1 | [['we', 'give', 'explicit', 'numerical', 'values', 'with', '100', 'decimal', 'digits', 'for', 'the', 'constant', 'in', 'the', 'mertens', 'product', 'over', 'primes', 'in', 'the', 'arithmetic', 'progressions', 'a', 'bmod', 'q', 'for', 'q', 'in', '3', '100', 'and', 'a', 'q', '1']] | [-0.21537728407694137, 0.11670735442791791, -0.05732244118938551, 0.08118393907652181, 0.04715160959783722, -0.13364826359183474, 0.10550835410899975, 0.30888936208451495, -0.24976929627797184, -0.30422725747613344, 0.049012888733105844, -0.3000464515267488, -0.03380178425954107, 0.2507979380624259, -0.07403009787530583, 0.06681497122190194, 0.018975104917498195, 0.15583307263167465, -0.06792687383644722, -0.37752977922997055, 0.2633683573016349, -0.09839167113087195, 0.08335619951214861, 0.03871734092450317, 0.0810151573489694, -0.010270145516294767, 0.06355806900297895, -0.15545568363193205, -0.20131495304624825, 0.0927599959404153, 0.32395955770933893, 0.060415139531388, 0.31694996937671127, -0.3583336806691745, -0.032335019300637, 0.13949765232117736, 0.15158283257144778, -0.00606926267637926, -0.005430819384534569, -0.12122943450915902, 0.21319261012489304, -0.227168668718899, -0.10396333471597995, -0.07804491527049857, 0.21039219485486255, 0.04938150686211884, -0.38539420134004426, 0.05779556188431075, 0.10209874967660974, 0.21902027044116573, -0.04809099230367471, -0.29339976652580146, 0.1751748904147569, 0.04452778812607422, 0.032793286146924776, 0.0822723849594374, -0.00551241755430751, -0.09680026177974309, -0.1389233998077757, 0.33946038459372874, -0.05913231324623613, -0.2056979501948637, 0.00954844695789849, -0.22232698643689647, -0.10617523608893595, 0.16336937643149319, 0.11268238805453568, 0.1095699058188235, 0.11344276798669906, 0.16071980406687705, -0.07259528799092069, 0.2508951752610943, 0.2608428948887569, -0.0572019862011075, 0.10399726268780582, 0.005672841661554926, -0.03435107180848718, 0.07708108260789338, -0.04630989077336648, 0.020964658161734834, -0.3625523037112811, -0.1931782543166157, -0.1600613606381504, 0.19270899241297124, -0.24569100260636975, -0.15977456716491895, 0.3823299920734237, 0.07911317373680718, 0.23643710612155058, 0.19347545003299327, 0.25325006016475315, 0.05696445826769752, 0.049914496848085785, 0.08219538386637236, 0.08172530406976447, 0.12905967093127615, 0.01118904575089212, -0.017917750951121834, -0.050247269792153555, 0.11270602959591676] |
712.1666 | On canonical variables in integrable models of magnets | Three integrable models - the deformed Heisenberg, Landau - Lifschits and
Ishimori magnets are written in terms of the stereographic projection. The
Hamiltonians of these models are obtained and certain questions related to the
existence of exact solutions are studied. In particular, the stability of
solitions is studied for the Heisenberg marnet, simplest stationary solutions
are obtained for the Landau - Lifschits magnet, and Hamiltonians and
topological charges are calculated for several known solutions of the Ishimori
model
| nlin.SI | three integrable models the deformed heisenberg landau lifschits and ishimori magnets are written in terms of the stereographic projection the hamiltonians of these models are obtained and certain questions related to the existence of exact solutions are studied in particular the stability of solitions is studied for the heisenberg marnet simplest stationary solutions are obtained for the landau lifschits magnet and hamiltonians and topological charges are calculated for several known solutions of the ishimori model | [['three', 'integrable', 'models', 'the', 'deformed', 'heisenberg', 'landau', 'lifschits', 'and', 'ishimori', 'magnets', 'are', 'written', 'in', 'terms', 'of', 'the', 'stereographic', 'projection', 'the', 'hamiltonians', 'of', 'these', 'models', 'are', 'obtained', 'and', 'certain', 'questions', 'related', 'to', 'the', 'existence', 'of', 'exact', 'solutions', 'are', 'studied', 'in', 'particular', 'the', 'stability', 'of', 'solitions', 'is', 'studied', 'for', 'the', 'heisenberg', 'marnet', 'simplest', 'stationary', 'solutions', 'are', 'obtained', 'for', 'the', 'landau', 'lifschits', 'magnet', 'and', 'hamiltonians', 'and', 'topological', 'charges', 'are', 'calculated', 'for', 'several', 'known', 'solutions', 'of', 'the', 'ishimori', 'model']] | [-0.17178687581326813, 0.13566067167428425, 0.0031191237762363423, 0.1397214799475882, -0.0002990610535360045, -0.1558614264552792, -0.07982874444375436, 0.32501946920011604, -0.23670763664671945, -0.2472873344053773, 0.14273758408833398, -0.3099742057836718, -0.09499747833857934, 0.2189504455018323, 0.01764777263936897, 0.11740743700000975, 0.009708390377151469, 0.0460458753320078, -0.14522670074883434, -0.24607277653800944, 0.31416785369058037, -0.041210850642528385, 0.241592413189614, 0.01535907489920242, 0.0938117745746341, -0.04875585207870851, 0.05574382942642034, 0.015970957475171115, -0.19361995279582012, 0.10790035374359125, 0.22482846005136203, -0.0004211033358135157, 0.14194218644924048, -0.4351180102934854, -0.18639714448040146, 0.0508463752420438, 0.14621526852069008, 0.13411140743280864, -0.015996381996147748, -0.3322505103941593, 0.04673246269683457, -0.14684958335581338, -0.19319836953137484, -0.14795620929605016, -0.04344732743144656, 0.07596028570292725, -0.2034369233685235, 0.09583984827622771, 0.10353679471235308, 0.04597757420399123, -0.1743297643843107, -0.15027520551423854, -0.05858222470851615, 0.10973664585293995, 0.07912008877772475, -0.024735944235645648, 0.04319996821383635, -0.1612943531686647, -0.1576820785153864, 0.41540859001300606, 0.006006399143694175, -0.27919501190384227, 0.1663026517101874, -0.1300492685727982, -0.12879977187710917, 0.07128015923727718, 0.07372868564238565, 0.12316930945962667, -0.1738404465755189, 0.17173460283407216, -0.05505083427609255, 0.03942301875536537, 0.06669004691583622, 0.029242402240116563, 0.17291758056833512, 0.08160679846575174, 0.01391476425083561, 0.15674069779925048, -0.015842653203031257, -0.1997131222807285, -0.30421914716458154, -0.11208751261357167, -0.19614538565898934, 0.03708943746621824, -0.06602941719191019, -0.17826066846545371, 0.4474417495851715, 0.08468627456265192, 0.12070454687151748, 0.023501270424781576, 0.15173701996294162, 0.17633410662205684, 0.019886254526985187, 0.023401842737156484, 0.26734292892635697, 0.17786596128199664, 0.04807046857765979, -0.21306193250671235, -0.03370859018630452, 0.15694702643021527] |
712.1667 | Challenges for creating magnetic fields by cosmic defects | We analyse the possibility that topological defects can act as a source of
magnetic fields through the Harrison mechanism in the radiation era. We give a
detailed relativistic derivation of the Harrison mechanism at first order in
cosmological perturbations, and show that it is only efficient for temperatures
above T ~ 0.2 keV. Our main result is that the vector metric perturbations
generated by the defects cannot induce vorticity in the matter fluids at linear
order, thereby excluding the production of currents and magnetic fields. We
show that anisotropic stress in the matter fluids is required to source
vorticity and magnetic fields. Our analysis is relevant for any mechanism
whereby vorticity is meant to be transferred purely by gravitational
interactions, and thus would also apply to dark matter or neutrinos.
| astro-ph gr-qc hep-ph | we analyse the possibility that topological defects can act as a source of magnetic fields through the harrison mechanism in the radiation era we give a detailed relativistic derivation of the harrison mechanism at first order in cosmological perturbations and show that it is only efficient for temperatures above t 02 kev our main result is that the vector metric perturbations generated by the defects cannot induce vorticity in the matter fluids at linear order thereby excluding the production of currents and magnetic fields we show that anisotropic stress in the matter fluids is required to source vorticity and magnetic fields our analysis is relevant for any mechanism whereby vorticity is meant to be transferred purely by gravitational interactions and thus would also apply to dark matter or neutrinos | [['we', 'analyse', 'the', 'possibility', 'that', 'topological', 'defects', 'can', 'act', 'as', 'a', 'source', 'of', 'magnetic', 'fields', 'through', 'the', 'harrison', 'mechanism', 'in', 'the', 'radiation', 'era', 'we', 'give', 'a', 'detailed', 'relativistic', 'derivation', 'of', 'the', 'harrison', 'mechanism', 'at', 'first', 'order', 'in', 'cosmological', 'perturbations', 'and', 'show', 'that', 'it', 'is', 'only', 'efficient', 'for', 'temperatures', 'above', 't', '02', 'kev', 'our', 'main', 'result', 'is', 'that', 'the', 'vector', 'metric', 'perturbations', 'generated', 'by', 'the', 'defects', 'can', 'not', 'induce', 'vorticity', 'in', 'the', 'matter', 'fluids', 'at', 'linear', 'order', 'thereby', 'excluding', 'the', 'production', 'of', 'currents', 'and', 'magnetic', 'fields', 'we', 'show', 'that', 'anisotropic', 'stress', 'in', 'the', 'matter', 'fluids', 'is', 'required', 'to', 'source', 'vorticity', 'and', 'magnetic', 'fields', 'our', 'analysis', 'is', 'relevant', 'for', 'any', 'mechanism', 'whereby', 'vorticity', 'is', 'meant', 'to', 'be', 'transferred', 'purely', 'by', 'gravitational', 'interactions', 'and', 'thus', 'would', 'also', 'apply', 'to', 'dark', 'matter', 'or', 'neutrinos']] | [-0.1486790940613271, 0.22214092096278015, -0.0908625087022441, 0.10450026617618277, -0.0979629611883026, -0.07812358822243717, -0.02185471870560342, 0.3365823897533119, -0.266015956708445, -0.31767094619930364, 0.04289863304718612, -0.2491796647126858, -0.10053179249919664, 0.1847688481910154, 0.023998008385443918, -0.03003909496877056, -0.01689506177432262, 0.027967414666020957, -0.0027361755456345588, -0.23086054195435002, 0.34790812202084526, 0.09442394774120588, 0.24815660656358188, 0.08640270822753127, 0.07831761135648076, -0.04528100374512947, -0.011596136387491312, 0.0312421244282562, -0.11762163593509915, 0.025521895590309915, 0.20326486966424945, 0.0514303372183349, 0.19439489554363087, -0.442026169024981, -0.2591914628023425, 0.11771314601198984, 0.12293446076532397, 0.17534864688865268, -0.09702872404327187, -0.26794581749977975, 0.1244644550463328, -0.14353580505479702, -0.11971045332745864, -0.11896522556646512, 0.01238429667428136, -0.0159841050967001, -0.28733604159922554, 0.11694519936550372, 0.09452422420189788, -0.021874168319985843, -0.1018619004314622, -0.04262102298223629, -0.0593347287324902, 0.05513249655934767, 0.09077322367542925, 0.06210796244155902, 0.18370597679884387, -0.17412112937667049, -0.09149307573858935, 0.40143722629604434, -0.10589994680172263, -0.16818517131301072, 0.18442408039521138, -0.1479875267411654, -0.10653427876352978, 0.1333600035080543, 0.16054854753355569, 0.1045355462970642, -0.13872772830968294, 0.0841147050816709, 0.012289837026037276, 0.15718213434402759, 0.056332368632921806, -0.003105167023694286, 0.3000456678752716, 0.10745280818798794, 0.061839157092170076, 0.11385972684231371, -0.06880560554205799, -0.015786755000814223, -0.35699238484868634, -0.1673189228006567, -0.166681233399476, 0.0633191627709983, -0.06249944982074129, -0.13016308727315984, 0.37555057568332323, 0.18088545601528425, 0.14196154279276155, -0.02147575021864703, 0.29388168789088154, 0.078994670852374, 0.06080880971052326, 0.09555840458219442, 0.30087497199240787, 0.16436771324190955, 0.13910579650233, -0.18800709300602858, 0.009890246652783109, 0.052050300429646784] |
712.1668 | Imaging the Gamma-Ray Sky with SPI aboard INTEGRAL | The spectrometer SPI on INTEGRAL allows for the first time simultaneous
imaging of diffuse and point-like emission in the hard X-ray and soft gamma-ray
regime. To fully exploit the capabilities of the instrument, we implemented the
MREM image deconvolution algorithm, initially developed for COMPTEL data
analysis, to SPI data analysis. We present the performances of the algorithm by
means of simulations and apply it to data accumulated during the first 2
mission years of INTEGRAL. Skymaps are presented for the 1809 keV gamma-ray
line, attributed to the radioactive decay of 26Al, and for continuum energy
bands, covering the range 20 keV - 3 MeV. The 1809 keV map indicates that
emission is clearly detected by SPI from the inner Galactic radian and from the
Cygnus region. The continuum maps reveal the transition between a point-source
dominated hard X-ray sky to a diffuse emission dominated soft gamma-ray sky.
From the skymaps, we extract a Galactic ridge emission spectrum that matches
well SPI results obtained by model fitting. By comparing our spectrum with the
cumulative flux measured by IBIS from point sources, we find indications for
the existence of an unresolved or diffuse emission component above ~100 keV.
| astro-ph | the spectrometer spi on integral allows for the first time simultaneous imaging of diffuse and pointlike emission in the hard xray and soft gammaray regime to fully exploit the capabilities of the instrument we implemented the mrem image deconvolution algorithm initially developed for comptel data analysis to spi data analysis we present the performances of the algorithm by means of simulations and apply it to data accumulated during the first 2 mission years of integral skymaps are presented for the 1809 kev gammaray line attributed to the radioactive decay of 26al and for continuum energy bands covering the range 20 kev 3 mev the 1809 kev map indicates that emission is clearly detected by spi from the inner galactic radian and from the cygnus region the continuum maps reveal the transition between a pointsource dominated hard xray sky to a diffuse emission dominated soft gammaray sky from the skymaps we extract a galactic ridge emission spectrum that matches well spi results obtained by model fitting by comparing our spectrum with the cumulative flux measured by ibis from point sources we find indications for the existence of an unresolved or diffuse emission component above 100 kev | [['the', 'spectrometer', 'spi', 'on', 'integral', 'allows', 'for', 'the', 'first', 'time', 'simultaneous', 'imaging', 'of', 'diffuse', 'and', 'pointlike', 'emission', 'in', 'the', 'hard', 'xray', 'and', 'soft', 'gammaray', 'regime', 'to', 'fully', 'exploit', 'the', 'capabilities', 'of', 'the', 'instrument', 'we', 'implemented', 'the', 'mrem', 'image', 'deconvolution', 'algorithm', 'initially', 'developed', 'for', 'comptel', 'data', 'analysis', 'to', 'spi', 'data', 'analysis', 'we', 'present', 'the', 'performances', 'of', 'the', 'algorithm', 'by', 'means', 'of', 'simulations', 'and', 'apply', 'it', 'to', 'data', 'accumulated', 'during', 'the', 'first', '2', 'mission', 'years', 'of', 'integral', 'skymaps', 'are', 'presented', 'for', 'the', '1809', 'kev', 'gammaray', 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712.1669 | Comparison of some solution concepts for linear first-order hyperbolic
differential equations with non-smooth coefficients | We discuss solution concepts for linear hyperbolic equations with
coefficients of regularity below Lipschitz continuity. Thereby our focus is on
theories which are based either on a generalization of the method of
characteristics or on refined techniques concerning energy estimates. We
provide a series of examples both as simple illustrations of the notions and
conditions involved but also to show logical independence among the concepts.
| math.AP math.CA | we discuss solution concepts for linear hyperbolic equations with coefficients of regularity below lipschitz continuity thereby our focus is on theories which are based either on a generalization of the method of characteristics or on refined techniques concerning energy estimates we provide a series of examples both as simple illustrations of the notions and conditions involved but also to show logical independence among the concepts | [['we', 'discuss', 'solution', 'concepts', 'for', 'linear', 'hyperbolic', 'equations', 'with', 'coefficients', 'of', 'regularity', 'below', 'lipschitz', 'continuity', 'thereby', 'our', 'focus', 'is', 'on', 'theories', 'which', 'are', 'based', 'either', 'on', 'a', 'generalization', 'of', 'the', 'method', 'of', 'characteristics', 'or', 'on', 'refined', 'techniques', 'concerning', 'energy', 'estimates', 'we', 'provide', 'a', 'series', 'of', 'examples', 'both', 'as', 'simple', 'illustrations', 'of', 'the', 'notions', 'and', 'conditions', 'involved', 'but', 'also', 'to', 'show', 'logical', 'independence', 'among', 'the', 'concepts']] | [-0.07338073899467977, 0.05297010704301871, -0.08035713042347477, 0.09605348377596014, -0.11140588886964206, -0.11949108390567395, 0.04670776928004881, 0.33754952031259355, -0.26316034365087176, -0.2697790601935524, 0.16439416935810677, -0.27115074033634023, -0.1758628553388497, 0.2823741093815233, -0.10181698950294119, 0.049702774847929294, 0.04600355885922909, 0.05957585190324328, -0.14085856635983174, -0.25599146456672595, 0.384699986430888, -0.009797485932134664, 0.25503138666256114, 0.09536690548635446, 0.14472391896952802, -0.018290629477884908, -0.07428848858063038, 0.03123257107173021, -0.20510967617424636, 0.1580376926666269, 0.20836931196256325, 0.12957850159504092, 0.2982712528274323, -0.44111049926051726, -0.2124260432874927, 0.04150578067279779, 0.058383072776576644, 0.06998681718877588, -0.029809278018700962, -0.27020551254256414, 0.09647401257489736, -0.08205200568414651, -0.1566089486846557, -0.1475153496632209, -0.04263344744059185, 0.10066504949847092, -0.2709885187876912, 0.06432266761145841, 0.12975389930204703, 0.09404204403377102, -0.09577249162830412, -0.11087947727109378, 0.0043844198843894094, 0.0635042670290344, 0.05670434741589885, -0.08255761075908175, 0.07793835524756175, -0.12817097903014377, -0.14006241587205576, 0.35032324025837275, -0.04467014335095883, -0.294978745539601, 0.22765346318841553, -0.08495850102402842, -0.16773314864661257, 0.03988622468538009, 0.17216406064108014, 0.14067741320110283, -0.10743341622157739, 0.09497672808625233, -0.04749061881134716, 0.12940903697521067, 0.08814026178218998, 0.09550932343476094, 0.13510674685239793, 0.126603555579025, 0.10191931965259406, 0.13169952715532138, 0.02576453758475299, -0.09695805683732032, -0.3706308273168711, -0.13282049700322274, -0.1432371372786852, 0.026739480450319555, -0.1060759612786709, -0.20236703978421597, 0.38197092233189883, 0.1296536739414128, 0.1839699564501643, 0.12186491316220222, 0.2888731505435247, 0.12413517795234488, 0.014240755162273463, 0.04114795912487002, 0.17448994055426179, 0.17970540159238646, 0.06945193831343204, -0.1490510961900537, 0.07459287290962843, 0.1627062265116435] |
712.167 | Field theory amplitudes in a space with SU(2) fuzziness | The structure of transition amplitudes in field theory in a three-dimensional
space whose spatial coordinates are noncommutative and satisfy the SU(2) Lie
algebra commutation relations is examined. In particular, the basic notions for
constructing the observables of the theory as well as subtleties related to the
proper treatment of $\delta$ distributions (corresponding to conservation laws)
are introduced. Explicit examples are given for scalar field theory amplitudes
in the lowest order of perturbation.
| hep-th | the structure of transition amplitudes in field theory in a threedimensional space whose spatial coordinates are noncommutative and satisfy the su2 lie algebra commutation relations is examined in particular the basic notions for constructing the observables of the theory as well as subtleties related to the proper treatment of delta distributions corresponding to conservation laws are introduced explicit examples are given for scalar field theory amplitudes in the lowest order of perturbation | [['the', 'structure', 'of', 'transition', 'amplitudes', 'in', 'field', 'theory', 'in', 'a', 'threedimensional', 'space', 'whose', 'spatial', 'coordinates', 'are', 'noncommutative', 'and', 'satisfy', 'the', 'su2', 'lie', 'algebra', 'commutation', 'relations', 'is', 'examined', 'in', 'particular', 'the', 'basic', 'notions', 'for', 'constructing', 'the', 'observables', 'of', 'the', 'theory', 'as', 'well', 'as', 'subtleties', 'related', 'to', 'the', 'proper', 'treatment', 'of', 'delta', 'distributions', 'corresponding', 'to', 'conservation', 'laws', 'are', 'introduced', 'explicit', 'examples', 'are', 'given', 'for', 'scalar', 'field', 'theory', 'amplitudes', 'in', 'the', 'lowest', 'order', 'of', 'perturbation']] | [-0.1431197990443454, 0.17513765705613574, -0.06185704558932533, 0.13842481522361696, -0.09087634774106038, -0.08059537085419935, -0.041481193067738786, 0.32189962213548523, -0.2555986954054485, -0.2909459583202584, 0.06904422590741888, -0.2573503051664577, -0.15445504966191947, 0.13857989141251892, -0.048432474710150726, 0.05370521148708778, -0.05264480253228814, 0.0934774291429979, -0.15898602948679277, -0.18353158399501504, 0.388727963100084, 0.010030768553002013, 0.26073480517111924, -0.02164121305961291, 0.11473925207327637, 0.012635127996974107, -0.0567530349880043, 0.03570204289563764, -0.15507102391549982, 0.10451678402670142, 0.24659071422259635, 0.07600820988591295, 0.1747589171573054, -0.40446359294259715, -0.19001537715343553, 0.06814678038871433, 0.12336773340131105, 0.10018280543792774, 0.024605082373859152, -0.26294064997152117, 0.04807032147396563, -0.14416988401596123, -0.19149938978565237, -0.13241513800393376, 0.06035697148763575, 0.02205372451701098, -0.2542442193152965, 0.0898065711889002, 0.026554589109663438, 0.10278966896132463, -0.07903993354153095, -0.08475091542479479, -0.0724170869054635, 0.12450608998511194, 0.04334605021156474, 0.019558962143491954, 0.08606786350719631, -0.14495056986601818, -0.14427121022567413, 0.412037603447162, 0.002459263304545958, -0.2719132764678862, 0.09987811709288508, -0.18796536174421716, -0.17208805088497078, 0.07065010782227749, 0.11555462375205632, 0.12339784437143761, -0.12460840267158346, 0.18968111755142067, -0.012925261434348714, 0.05325225154714038, 0.09014132151302572, 0.09127956358457191, 0.172452204188125, 0.0648723501039462, 0.0024860993144102395, 0.08019740323329137, 0.026032056769407872, -0.19387494911077535, -0.44884416479099953, -0.13067281417897902, -0.11792846145302367, 0.03665151139203873, -0.1249293911967268, -0.1876828996723311, 0.3712693080241378, 0.10662036857684143, 0.1694687554918346, 0.041960101988580495, 0.22337915657489146, 0.20110905271010576, 0.08134616987727997, 0.016744468613372494, 0.2130827094273021, 0.2935565832562538, 0.043103878334578544, -0.17660633105293122, -0.05803045936368613, 0.1525263068680134] |
712.1671 | Saturation of Transverse Energy per Charged Hadron and Freeze-Out
Criteria in Heavy-Ion Collisions | For beam energies from SPS to RHIC, the transverse energy per charged
particle, $E_T/N_{\textrm{ch}}$, saturates at a value of approximately 0.8 GeV.
A direct connection between this value and the freeze-out criterium $E/N
\approx 1$ GeV for the primordial energy and particle number in the hadronic
resonance gas model is established.
| hep-ph | for beam energies from sps to rhic the transverse energy per charged particle e_tn_textrmch saturates at a value of approximately 08 gev a direct connection between this value and the freezeout criterium en approx 1 gev for the primordial energy and particle number in the hadronic resonance gas model is established | [['for', 'beam', 'energies', 'from', 'sps', 'to', 'rhic', 'the', 'transverse', 'energy', 'per', 'charged', 'particle', 'e_tn_textrmch', 'saturates', 'at', 'a', 'value', 'of', 'approximately', '08', 'gev', 'a', 'direct', 'connection', 'between', 'this', 'value', 'and', 'the', 'freezeout', 'criterium', 'en', 'approx', '1', 'gev', 'for', 'the', 'primordial', 'energy', 'and', 'particle', 'number', 'in', 'the', 'hadronic', 'resonance', 'gas', 'model', 'is', 'established']] | [-0.06614749122643843, 0.28020034030079843, -0.08272484707646072, 0.13243893977254628, 0.022172898929566146, -0.1318073364533484, 0.0018706957437098026, 0.3000752655416727, -0.2156492896657437, -0.3902186044678092, -0.07288174530724063, -0.3263893926143646, 0.15419289955869317, 0.172537893243134, 0.12335349667817354, 0.05048530664294958, 0.07196876265108586, 0.03903333533555269, -0.03280861807987094, -0.12000708915293216, 0.2652784077776596, 0.19669268675148488, 0.2065303361415863, 0.197212055940181, 0.12416928870603443, 0.015870537562295794, 0.09635682635009289, -0.07564221601933241, -0.23534794822335242, 0.023333007404580712, 0.21475159041583539, 0.041416410342790186, 0.20351024450734256, -0.29407984972000123, -0.12119107626378536, 0.16115803118795158, 0.10233254429884255, 0.06658394010039047, -0.08277924731373787, -0.18180776589550077, 0.09814945188350975, -0.2083808866981417, -0.16788594895973802, 0.05643672993406654, -0.011481761988252402, -0.02507396602071822, -0.3242128013074398, 0.19732626350596547, -0.07534310702234506, 0.05562366163358092, -0.06317352800571825, -0.21461517721414566, -0.07663040176965297, -0.06596666882745922, 0.08526291190879419, 0.10494026836007833, 0.21626283586025238, -0.14450665697921067, -0.06558011457324028, 0.36521460155025126, -0.013650444317609072, -0.09773531925864518, 0.1646928217448294, -0.193165784496814, -0.11655554161407053, 0.22052226677536965, 0.18870701912790536, 0.06449543669819832, -0.13703539103269577, 0.05175618584034965, -0.005241549981292337, 0.19563414143398405, 0.1402470762655139, 0.007844968661665917, 0.27215932462364434, 0.16615634428337217, 0.07496477352455258, 0.04668205948546529, -0.1578714343160391, -0.07714528251439333, -0.3553780809789896, -0.16097170259803534, -0.17511515060439706, 0.08336586065590382, -0.10366870758705772, -0.008985721860080958, 0.39882014678791167, 0.0821670226380229, 0.284194024913013, 0.024814831390976906, 0.2991549006290734, 0.1165476175583899, 0.004053093260154128, 0.10451502631418406, 0.326938087400049, 0.16623462116345764, 0.25213134426623585, -0.21656172357965262, -0.06547407791018486, 0.05658421630039811] |
712.1672 | 0.7-anomaly and magnetotransport of disordered quantum wires | The unexpected "0.7" plateau of conductance quantisation is usually observed
for ballistic one-dimensional devices. In this work we study a quasi-ballistic
quantum wire, for which the disorder induced backscattering reduces the
conductance quantisation steps. We find that the transmission probability
resonances coexist with the anomalous plateau. The studies of these resonances
as a function of the in-plane magnetic field and electron density point to the
presence of spin polarisation at low carrier concentrations and constitute a
method for the determination of the effective g-factor suitable for disordered
quantum wires.
| cond-mat.mes-hall | the unexpected 07 plateau of conductance quantisation is usually observed for ballistic onedimensional devices in this work we study a quasiballistic quantum wire for which the disorder induced backscattering reduces the conductance quantisation steps we find that the transmission probability resonances coexist with the anomalous plateau the studies of these resonances as a function of the inplane magnetic field and electron density point to the presence of spin polarisation at low carrier concentrations and constitute a method for the determination of the effective gfactor suitable for disordered quantum wires | [['the', 'unexpected', '07', 'plateau', 'of', 'conductance', 'quantisation', 'is', 'usually', 'observed', 'for', 'ballistic', 'onedimensional', 'devices', 'in', 'this', 'work', 'we', 'study', 'a', 'quasiballistic', 'quantum', 'wire', 'for', 'which', 'the', 'disorder', 'induced', 'backscattering', 'reduces', 'the', 'conductance', 'quantisation', 'steps', 'we', 'find', 'that', 'the', 'transmission', 'probability', 'resonances', 'coexist', 'with', 'the', 'anomalous', 'plateau', 'the', 'studies', 'of', 'these', 'resonances', 'as', 'a', 'function', 'of', 'the', 'inplane', 'magnetic', 'field', 'and', 'electron', 'density', 'point', 'to', 'the', 'presence', 'of', 'spin', 'polarisation', 'at', 'low', 'carrier', 'concentrations', 'and', 'constitute', 'a', 'method', 'for', 'the', 'determination', 'of', 'the', 'effective', 'gfactor', 'suitable', 'for', 'disordered', 'quantum', 'wires']] | [-0.2088745596368661, 0.2196704883630691, -0.04528101970012603, 0.02268962710677238, 0.004001021853470233, -0.1820158104809901, 0.06254781942207659, 0.34822098777323357, -0.22912051543865478, -0.29986220990632023, -0.01800098991298818, -0.2948231701268239, -0.14223623958421516, 0.17017271432481454, 0.028232659459155932, 0.03550509871192946, 0.014959949093577818, -0.03200951091987028, -0.07763069957295914, -0.16378704316160653, 0.2820250565458215, 0.03271619408140273, 0.3121960725258575, 0.09599420100743516, 0.06755797198209702, 0.04451632635730706, 0.08536056791212451, 0.03892495070866654, -0.14384256011658947, 0.03942300687973084, 0.2652230195052336, -0.14806482786040628, 0.16907618792329945, -0.422388235693065, -0.21519370175626004, 0.029600913160260808, 0.15441590588895626, 0.19367856124620048, -0.05900946954328023, -0.2798252801798033, 0.05541387488123741, -0.10296641620074849, -0.16513604074150842, -0.03716650405333618, 0.01405690853834529, -0.023290600264026375, -0.25793029901602965, 0.15729675453327585, 0.05387175945418604, 0.0735057664909557, -0.06544779063404532, -0.09427705466789141, 0.0005876202387421318, 0.07302131591197313, 0.04079725667886604, 0.02461556955031381, 0.21166440695419572, -0.14133565092009356, -0.1260317427359961, 0.3156623232565569, -0.07243488337635325, -0.10365037688608753, 0.1229459044936877, -0.20514294929904445, -0.08243857158787465, 0.17925562807934337, 0.11319376141084043, 0.0859031333493885, -0.11083410875191597, 0.06932078175452078, 0.005637537922155572, 0.09992463707144299, 0.04904098778418946, 0.11997843353245198, 0.2635342401107041, 0.17410107416210674, 0.06967241480276826, 0.08513531276139985, -0.1964574016086506, -0.04856226154278671, -0.280073275245475, -0.2041384262461843, -0.21907471656652816, 0.13314970855318595, -0.07219380893701363, -0.23309800448942553, 0.4297190937789136, 0.17487101955862527, 0.20618334809171684, 0.006798069059503463, 0.29354931171355625, 0.20510134207519043, 0.05613587386487575, 0.011766270961968249, 0.21990275181525157, 0.20208589833365817, 0.12139118972150714, -0.3349425749947432, 0.048522447377150314, -0.024852559420416195] |
712.1673 | Estimation in a class of nonlinear heteroscedastic time series models | Parameter estimation in a class of heteroscedastic time series models is
investigated. The existence of conditional least-squares and conditional
likelihood estimators is proved. Their consistency and their asymptotic
normality are established. Kernel estimators of the noise's density and its
derivatives are defined and shown to be uniformly consistent. A simulation
experiment conducted shows that the estimators perform well for large sample
size.
| math.ST stat.TH | parameter estimation in a class of heteroscedastic time series models is investigated the existence of conditional leastsquares and conditional likelihood estimators is proved their consistency and their asymptotic normality are established kernel estimators of the noises density and its derivatives are defined and shown to be uniformly consistent a simulation experiment conducted shows that the estimators perform well for large sample size | [['parameter', 'estimation', 'in', 'a', 'class', 'of', 'heteroscedastic', 'time', 'series', 'models', 'is', 'investigated', 'the', 'existence', 'of', 'conditional', 'leastsquares', 'and', 'conditional', 'likelihood', 'estimators', 'is', 'proved', 'their', 'consistency', 'and', 'their', 'asymptotic', 'normality', 'are', 'established', 'kernel', 'estimators', 'of', 'the', 'noises', 'density', 'and', 'its', 'derivatives', 'are', 'defined', 'and', 'shown', 'to', 'be', 'uniformly', 'consistent', 'a', 'simulation', 'experiment', 'conducted', 'shows', 'that', 'the', 'estimators', 'perform', 'well', 'for', 'large', 'sample', 'size']] | [-0.08754071344493798, 0.018358248999462493, -0.1388947901225859, 0.1599143070052378, -0.029551565496911927, -0.14041620957845402, 0.018196712529677295, 0.4260274152902345, -0.22455074537485356, -0.2834488619719782, 0.18791726264058642, -0.2631278107123029, -0.11038492761191822, 0.1932974126595523, -0.10202750485886129, 0.19374246859168184, 0.06815326387333052, -0.007063666140780815, -0.08828890933129456, -0.3282137218442175, 0.23282317121347954, 0.07420834089298883, 0.3266660081590676, -0.08204432715091013, 0.13045452901672933, -0.039634500787923896, -0.10228557780294889, 0.06690624563564215, -0.13404995153882004, 0.05491680132165071, 0.24720328630422544, 0.13839729634984846, 0.3422502434902614, -0.3196178268064555, -0.20718447079942112, 0.14109870818473638, 0.1022128101979052, 0.008841689075193098, 0.0025384855126180956, -0.3102788866174618, 0.07895185223840658, -0.1662077370490278, -0.10025865938364258, -0.1365476531547404, -0.043205139978278066, 0.10061394475821045, -0.4016437490560835, 0.15859031874776608, 0.05128474793614699, 0.07540802043231745, -0.025376326721837563, -0.17069466638889524, -0.03689696982638129, 0.050350817536274274, 0.11229068683009714, -0.06604093506241278, 0.09855364395245429, -0.0836393338207516, -0.06971562810001834, 0.23627999877076475, -0.0602600984275341, -0.22090576138467558, 0.1615508328822832, -0.17655369921797706, -0.10409081797115505, 0.06052146303737836, 0.17685748594662837, 0.15267656149432784, -0.16538178061525668, 0.11189967335667461, -0.025829897286565675, 0.12093442564289417, -0.005108826598452945, 0.01514674337851184, 0.13484311444053967, 0.1561920521705742, 0.08040326564843135, 0.14231245467371698, -0.11156910168562806, -0.08120198809962359, -0.326307087866289, -0.11518403835174057, -0.2748832326690336, -0.045188446033505664, -0.1611148179799784, -0.231979944211367, 0.3593847906637576, 0.16993936780659902, 0.1889779347280461, 0.18085675498831175, 0.25204089623425274, 0.1670121075285058, 0.0019529255073247177, 0.10134216351810121, 0.2171848707178968, 0.23115734357927595, 0.01225352502097526, -0.18181315187605157, 0.1902658225810756, 0.0332990774411648] |
712.1674 | On quantum cosmology as field theory of bosonic string mass groundstate | The Quantum Cosmology can be understand as the theory of an one object that
is the Universe described in terms of fundamental mass groundstate of the free
boson string, that is a tachyon - a hypothetical particle with negative mass
square, which has linear velocity more than the velocity of light c. From this
fact it is clear that whole information about physics of our Universe is
focused on studying of this untypical particle physics. In this paper this
point of view is touched up on. As the general-relativistic model of our
Universe we study the Einstein-Friedmann Spacetime. Firstly, the way of
canonical quantization beginning from first quantization of the Dirac
Hamiltonian constraints up to the second quantization by the Von
Neumann-Araki-Woods quantization in the Fock space is briefly discussed. We
show that using of the Bogoliubov-Heinsenberg static operator basis leads to
formulation of the second quantization of the considered free boson string in
terms of the monodromy in the Fock space. Finally, we propose some specific
model of the Universe - the extremal tachyon mass model, and in frames of its
the Hubble evolution parameter, the equation of state for Dark Matter in the
Universe, and the temperature of our Universe are concluded.
| gr-qc cond-mat.stat-mech hep-th math-ph math.MP | the quantum cosmology can be understand as the theory of an one object that is the universe described in terms of fundamental mass groundstate of the free boson string that is a tachyon a hypothetical particle with negative mass square which has linear velocity more than the velocity of light c from this fact it is clear that whole information about physics of our universe is focused on studying of this untypical particle physics in this paper this point of view is touched up on as the generalrelativistic model of our universe we study the einsteinfriedmann spacetime firstly the way of canonical quantization beginning from first quantization of the dirac hamiltonian constraints up to the second quantization by the von neumannarakiwoods quantization in the fock space is briefly discussed we show that using of the bogoliubovheinsenberg static operator basis leads to formulation of the second quantization of the considered free boson string in terms of the monodromy in the fock space finally we propose some specific model of the universe the extremal tachyon mass model and in frames of its the hubble evolution parameter the equation of state for dark matter in the universe and the temperature of our universe are concluded | [['the', 'quantum', 'cosmology', 'can', 'be', 'understand', 'as', 'the', 'theory', 'of', 'an', 'one', 'object', 'that', 'is', 'the', 'universe', 'described', 'in', 'terms', 'of', 'fundamental', 'mass', 'groundstate', 'of', 'the', 'free', 'boson', 'string', 'that', 'is', 'a', 'tachyon', 'a', 'hypothetical', 'particle', 'with', 'negative', 'mass', 'square', 'which', 'has', 'linear', 'velocity', 'more', 'than', 'the', 'velocity', 'of', 'light', 'c', 'from', 'this', 'fact', 'it', 'is', 'clear', 'that', 'whole', 'information', 'about', 'physics', 'of', 'our', 'universe', 'is', 'focused', 'on', 'studying', 'of', 'this', 'untypical', 'particle', 'physics', 'in', 'this', 'paper', 'this', 'point', 'of', 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'equation', 'of', 'state', 'for', 'dark', 'matter', 'in', 'the', 'universe', 'and', 'the', 'temperature', 'of', 'our', 'universe', 'are', 'concluded']] | [-0.09974832470703404, 0.16060964729935223, -0.12212295323959552, 0.0757847939914791, -0.07177470901049673, -0.08398712791735306, -0.0020118225371697916, 0.2970704556815326, -0.24657850113333551, -0.2817671674769372, 0.05890023729007225, -0.2342647886974737, -0.11562570536974817, 0.16679369931807742, -0.04830984255881049, 0.012110062068968546, 0.02606087449938059, 0.1073740497091785, -0.09077112380880863, -0.27539365080418066, 0.39243203366873786, 0.08909899600490462, 0.2227047235018108, 0.01744836748461239, 0.12329120526323095, -0.021942181973718108, -0.03585136974230409, -0.00996980719588464, -0.14714920545462518, 0.09945273126009851, 0.18189817397273145, 0.12620316992746666, 0.2372023731691297, -0.3778159531764686, -0.22320025040302427, 0.0977608705474995, 0.15775307837640867, 0.14686975882796105, -0.056076037132079364, 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712.1675 | Effect of confinement potential shape on exchange interaction in coupled
quantum dots | Exchange interaction has been studied for electrons in coupled quantum dots
(QD's) by a configuration interaction method using confinement potentials with
different profiles. The confinement potential has been parametrized by a
two-centre power-exponential function, which allows us to investigate various
types of QD's described by either soft or hard potentials of different range.
For the soft (Gaussian) confinement potential the exchange energy decreases
with increasing interdot distance due to the decreasing interdot tunnelling.
For the hard (rectangular-like) confinement potential we have found a
non-monotonic behaviour of the exchange interaction as a function of distance
between the confinement potential centres. In this case, the exchange
interaction energy exhibits a pronounced maximum for the confinement potential
profile which corresponds to the nanostructure composed of the small inner QD
with a deep potential well embedded in the large outer QD with a shallow
potential well. This effect results from the strong localization of electrons
in the inner QD, which leads to the large singlet-triplet splitting.
Implications of this finding for quantum logic operations have been discussed.
| cond-mat.mes-hall | exchange interaction has been studied for electrons in coupled quantum dots qds by a configuration interaction method using confinement potentials with different profiles the confinement potential has been parametrized by a twocentre powerexponential function which allows us to investigate various types of qds described by either soft or hard potentials of different range for the soft gaussian confinement potential the exchange energy decreases with increasing interdot distance due to the decreasing interdot tunnelling for the hard rectangularlike confinement potential we have found a nonmonotonic behaviour of the exchange interaction as a function of distance between the confinement potential centres in this case the exchange interaction energy exhibits a pronounced maximum for the confinement potential profile which corresponds to the nanostructure composed of the small inner qd with a deep potential well embedded in the large outer qd with a shallow potential well this effect results from the strong localization of electrons in the inner qd which leads to the large singlettriplet splitting implications of this finding for quantum logic operations have been discussed | [['exchange', 'interaction', 'has', 'been', 'studied', 'for', 'electrons', 'in', 'coupled', 'quantum', 'dots', 'qds', 'by', 'a', 'configuration', 'interaction', 'method', 'using', 'confinement', 'potentials', 'with', 'different', 'profiles', 'the', 'confinement', 'potential', 'has', 'been', 'parametrized', 'by', 'a', 'twocentre', 'powerexponential', 'function', 'which', 'allows', 'us', 'to', 'investigate', 'various', 'types', 'of', 'qds', 'described', 'by', 'either', 'soft', 'or', 'hard', 'potentials', 'of', 'different', 'range', 'for', 'the', 'soft', 'gaussian', 'confinement', 'potential', 'the', 'exchange', 'energy', 'decreases', 'with', 'increasing', 'interdot', 'distance', 'due', 'to', 'the', 'decreasing', 'interdot', 'tunnelling', 'for', 'the', 'hard', 'rectangularlike', 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0.07816989286304747, 0.02248962640202459, -0.1934303615129192, 0.011517664739953602, 0.39981988122460643, -0.2673383419552678, -0.34888008065424814, -0.024659939535565115, -0.27994193722276256, -0.10809443746168554, 0.1563816471577143, 0.02615919851326529, 0.03771416878467695, 0.015888072378029024, -0.010433553825697802, -0.05496669615783077, -0.15592042866399825, 0.303100983811424, 0.055775820543939744, 0.26764121721633255, 0.17304900590992517, 0.03350986727658724, 0.07419994925519312, 0.10622102596037994, 0.04186832363248905, -0.10296728698848989, 0.10466902398617367, 0.17535810434727828, -0.039859359487056774, 0.28305549733475327, -0.4113835012217219, -0.23271968864938083, 0.08798174469091127, 0.1699445712874035, 0.11889485067033849, -0.10688574552654445, -0.27733255880669494, 0.012619157544487947, -0.19544639941735592, -0.13804398291082137, -0.026145251319781376, 0.05270760157280144, 0.06699562115282509, -0.2622033675407151, 0.07438439452977624, 0.016603305608820104, 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0.0932557329103469, -0.2738433222116827, 0.026021838966067988, -0.019229338813917658] |
712.1676 | NNLO QCD corrections to the m_c dependent matrix elements in B -> X_s
gamma | Recent developements in the calculation of the NNLO QCD corrections to the
charm quark mass dependent matrix elements in B -> X_s gamma are reported.
Special emphasis is put on the new results of the virtual O(alpha_s^2)
fermionic contribution to these matrix elements [1].
| hep-ph | recent developements in the calculation of the nnlo qcd corrections to the charm quark mass dependent matrix elements in b x_s gamma are reported special emphasis is put on the new results of the virtual oalpha_s2 fermionic contribution to these matrix elements 1 | [['recent', 'developements', 'in', 'the', 'calculation', 'of', 'the', 'nnlo', 'qcd', 'corrections', 'to', 'the', 'charm', 'quark', 'mass', 'dependent', 'matrix', 'elements', 'in', 'b', 'x_s', 'gamma', 'are', 'reported', 'special', 'emphasis', 'is', 'put', 'on', 'the', 'new', 'results', 'of', 'the', 'virtual', 'oalpha_s2', 'fermionic', 'contribution', 'to', 'these', 'matrix', 'elements', '1']] | [-0.08161528936998788, 0.22944899413431452, -0.06075516386434089, 0.08001890512410724, -0.07052498050900392, -0.07303202869813906, 0.0847858881664484, 0.32155947517170463, -0.16792426251827977, -0.17301946947740954, 0.0020451607063499302, -0.36453233261289464, -0.01734281955070274, 0.10262870701939561, 0.020209009791616092, 0.1459528480542737, 0.07943128142505884, 0.022033526443031637, -0.11192231698957987, -0.25828369159987846, 0.3603477190400279, 0.01702217697057613, 0.16819627998873246, 0.19084653901586004, -0.03830275819961761, 0.0003456278964010782, -0.1839059414125459, -0.12118693753037342, -0.1241941615765871, 0.08632372184331681, 0.2157096811827424, 0.016354589501049285, 0.09886865621042806, -0.3751917906582009, -0.07371843774629713, 0.05128735210746527, 0.09606059913545154, 0.08099068509588062, -0.04376411307224094, -0.26814095061922144, 0.08308152399610641, -0.25868422388597284, -0.14908459005054348, -0.0908809824261901, 0.03359690272834066, -0.06451458857004899, -0.3321734942755727, 0.0010423114696560905, -0.06120499983689813, -0.036455458095080634, 0.05476955795081246, -0.33464626105892104, 0.000501601209560799, 0.06671033811425184, 0.12240106947611758, 0.10637613639322131, 0.15128656303466753, -0.17112904531491357, -0.1469925667570774, 0.44195575544307397, -0.04389314219182314, -0.1948801558573059, 0.0858591164483927, -0.22868562082565108, -0.23549495012564367, 0.1388642490911839, 0.237650343211541, 0.08778497843115135, -0.1524360140265767, 0.2162950584599965, -0.03254366657415102, 0.13031198140666927, -0.0020444339119590994, 0.05447133673831474, 0.11524213365344115, 0.14527997088640235, -0.08023823589779609, 0.006485666933491133, -0.013450199602778221, -0.10158983248740781, -0.4267299519202044, -0.11059877631622692, -0.14165883114951294, 0.06219426224138155, -0.13928393534449643, -0.1638277704329338, 0.3531237189809597, 0.10067259147763252, 0.23664063473535313, -0.013672949567567124, 0.3167439684445082, 0.13977515199194598, 0.07642184695645864, 0.022104320040535787, 0.2901719588959633, 0.25840410694133403, 0.11399303647407959, -0.2879360671761597, 0.006028863863997855, 0.16093091503175538] |
712.1677 | Quasi-relativistic behavior of cold atoms in light fields | We study the influence of three laser beams on the center of mass motion of
cold atoms with internal energy levels in a tripod configuration. We show that
similar to electrons in graphene the atomic motion can be equivalent to the
dynamics of ultra-relativistic two-component Dirac fermions. We propose and
analyze an experimental setup for observing such a quasi-relativistic motion of
ultracold atoms. We demonstrate that the atoms can experience negative
refraction and focussing by Veselago-type lenses. We also show how the chiral
nature of the atomic motion manifests itself as an oscillation of the atomic
internal state population which depends strongly on the direction of the center
of mass motion. For certain directions an atom remains in its initial state,
whereas for other directions the populations undergo oscillations between a
pair of internal states.
| cond-mat.mes-hall physics.atom-ph quant-ph | we study the influence of three laser beams on the center of mass motion of cold atoms with internal energy levels in a tripod configuration we show that similar to electrons in graphene the atomic motion can be equivalent to the dynamics of ultrarelativistic twocomponent dirac fermions we propose and analyze an experimental setup for observing such a quasirelativistic motion of ultracold atoms we demonstrate that the atoms can experience negative refraction and focussing by veselagotype lenses we also show how the chiral nature of the atomic motion manifests itself as an oscillation of the atomic internal state population which depends strongly on the direction of the center of mass motion for certain directions an atom remains in its initial state whereas for other directions the populations undergo oscillations between a pair of internal states | [['we', 'study', 'the', 'influence', 'of', 'three', 'laser', 'beams', 'on', 'the', 'center', 'of', 'mass', 'motion', 'of', 'cold', 'atoms', 'with', 'internal', 'energy', 'levels', 'in', 'a', 'tripod', 'configuration', 'we', 'show', 'that', 'similar', 'to', 'electrons', 'in', 'graphene', 'the', 'atomic', 'motion', 'can', 'be', 'equivalent', 'to', 'the', 'dynamics', 'of', 'ultrarelativistic', 'twocomponent', 'dirac', 'fermions', 'we', 'propose', 'and', 'analyze', 'an', 'experimental', 'setup', 'for', 'observing', 'such', 'a', 'quasirelativistic', 'motion', 'of', 'ultracold', 'atoms', 'we', 'demonstrate', 'that', 'the', 'atoms', 'can', 'experience', 'negative', 'refraction', 'and', 'focussing', 'by', 'veselagotype', 'lenses', 'we', 'also', 'show', 'how', 'the', 'chiral', 'nature', 'of', 'the', 'atomic', 'motion', 'manifests', 'itself', 'as', 'an', 'oscillation', 'of', 'the', 'atomic', 'internal', 'state', 'population', 'which', 'depends', 'strongly', 'on', 'the', 'direction', 'of', 'the', 'center', 'of', 'mass', 'motion', 'for', 'certain', 'directions', 'an', 'atom', 'remains', 'in', 'its', 'initial', 'state', 'whereas', 'for', 'other', 'directions', 'the', 'populations', 'undergo', 'oscillations', 'between', 'a', 'pair', 'of', 'internal', 'states']] | [-0.15011137711759934, 0.24763719923392463, -0.05622664746244563, 0.012313745174828028, -0.005131968451705553, -0.08952910033290956, 0.04137731253329331, 0.4174758805545853, -0.2648854471722256, -0.29684549852607967, -0.0058781578259389684, -0.27249971632637193, -0.06997299466435034, 0.16927730390008622, 0.003970233330836714, -0.005038496607709537, 0.07667191357893953, 0.029700669049938667, -0.03259466961894963, -0.17615526220709113, 0.3376937922326598, 0.05151905004046301, 0.272301996065957, 0.04476568926605327, 0.1266492986009081, 0.017576267775113404, 0.07855485345292558, 0.0039406796811329225, -0.08490337836712515, 0.09911608116122644, 0.14650258419465328, 0.036894080319455756, 0.21432129912245185, -0.4700741589680981, -0.18190074520908409, 0.059538917873165946, 0.17177463921374267, 0.18730876336322486, -0.0974969447315879, -0.32048765742289487, -0.04345977487765364, -0.14193768095252896, -0.19223962678685227, -0.06051172612151548, 0.02488386153361635, 0.05065478094499002, -0.21742422142719378, 0.07457180535086298, 0.04993568725341847, 0.036280619651218184, -0.12493485313885387, -0.07559936834019679, -0.03963862084297102, 0.0746400497276892, 0.014005701621445312, -0.008325312147612002, 0.1815173298384605, -0.15364381654618947, -0.12112256409878384, 0.44629583147757534, -0.09526307195157452, -0.18543316468374052, 0.2150288277111058, -0.17915061774573274, -0.07051492675290957, 0.09051551092277045, 0.1788843333401453, 0.08785602909776924, -0.1078746059992865, 0.038265318746171166, -0.06455736382127698, 0.17822892009801886, 0.09799899398166784, 0.06889210510373449, 0.26924088084375236, 0.15632846733596897, 0.083649548352696, 0.1374259500120551, -0.14662732791377983, -0.09580611859781862, -0.2605870661756663, -0.1784808985027137, -0.15986276980934302, 0.0491661401952047, -0.02252072369903083, -0.14996163043499328, 0.4102573525647063, 0.13652537972318815, 0.21679836909161576, -0.08300517432638374, 0.2595927332764241, 0.12170619940743156, 0.001544889208596589, 0.028391381044552397, 0.2819098914676318, 0.11346973725872588, 0.05475886763115205, -0.3160183403168374, -0.00027466628617092747, 0.015033149633056192] |
712.1678 | Description of the dynamics of a random chain with rigid constraints in
the path integral framework | In this work we discuss the dynamics of a three dimensional chain which is
described by generalized nonlinear sigma model The formula of the probability
distribution of two topologically entangled chain is provided. The interesting
case of a chain which can form only discrete angles with respect to the
$z-$axis is also presented.
| cond-mat.stat-mech | in this work we discuss the dynamics of a three dimensional chain which is described by generalized nonlinear sigma model the formula of the probability distribution of two topologically entangled chain is provided the interesting case of a chain which can form only discrete angles with respect to the zaxis is also presented | [['in', 'this', 'work', 'we', 'discuss', 'the', 'dynamics', 'of', 'a', 'three', 'dimensional', 'chain', 'which', 'is', 'described', 'by', 'generalized', 'nonlinear', 'sigma', 'model', 'the', 'formula', 'of', 'the', 'probability', 'distribution', 'of', 'two', 'topologically', 'entangled', 'chain', 'is', 'provided', 'the', 'interesting', 'case', 'of', 'a', 'chain', 'which', 'can', 'form', 'only', 'discrete', 'angles', 'with', 'respect', 'to', 'the', 'zaxis', 'is', 'also', 'presented']] | [-0.1721034375072088, 0.17281670618872597, -0.05756421580488952, 0.05033916520517109, -0.0382341141197479, -0.17501060828074533, -0.006864744502137292, 0.365416463815941, -0.27830076905600026, -0.2233003754803542, 0.09273249378102778, -0.25369991949003823, -0.15376165382704646, 0.17485359337022705, 0.011682534976950232, 0.036527533584959665, 0.03566961695949705, 0.0781384527261527, -0.06553907650259305, -0.21321713323441316, 0.31264807668707845, 0.022569659453781567, 0.2612801477805061, 0.0031106068910855167, 0.13213655888542253, 0.012135217177136889, 0.0191185390400999, 0.033604486986010706, -0.1346268168000399, 0.14325283274476258, 0.19562209995006616, 0.048495261244616415, 0.19332561375713855, -0.3593536511696172, -0.20269272933309934, 0.10645773376004314, 0.13030180972912964, 0.1244739072072267, -0.007197006429844307, -0.2913951328999521, 0.05596131747061352, -0.1955202383885406, -0.19353099553055078, -0.03526845642031645, -0.00627923883357138, 0.022165470739018242, -0.24415686840788936, 0.06922546870301408, 0.11477058173491145, 0.0044706843898824926, 0.0023868636685019395, -0.07712652005325511, -0.057305373269010265, 0.0645202881357861, 0.06295691813860652, 0.02433643573543654, 0.039670592657167394, -0.08376454106569928, -0.10823371616315167, 0.37849546807273377, -0.0577160470749972, -0.28720806869414617, 0.15557143238004087, -0.148539534726022, -0.1291403156476763, 0.09998350843506039, 0.12191461703195325, 0.12846175229774331, -0.16853717401764304, 0.11285609170316195, -0.08798772137928403, 0.16045215382363717, 0.019693705622317655, -0.013891469054626968, 0.18675288565035136, 0.14011157676577568, 0.06300056317188549, 0.23142146349023535, -0.08309405220821851, -0.1876421000738189, -0.3349586701336897, -0.18887014790736842, -0.20037615861532823, 0.060307925514314534, -0.06122130831211524, -0.14743414930647836, 0.447255173886968, 0.09792384787254738, 0.21645729575868486, 0.04045295334456243, 0.24991284704433298, 0.1583329013917806, -0.00962241566827837, 0.021844717410375487, 0.17297774646431208, 0.15630229510243912, -0.012495049293029983, -0.19935068121742247, 0.04460536474186295, 0.07388944816687759] |
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