id float64 706 1.8k | title stringlengths 1 343 | abstract stringlengths 6 6.09k | categories stringlengths 5 125 | processed_abstract stringlengths 2 5.96k | tokenized_abstract stringlengths 8 8.74k | centroid stringlengths 2.1k 2.17k |
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712.2879 | Exploring Parameter Constraints on Quintessential Dark Energy: the
Pseudo-Nambu Goldstone Boson Model | We analyze the constraining power of future dark energy experiments for
Pseudo-Nambu Goldstone Boson (PNGB) quintessence. Following the Dark Energy
Task Force methodology, we forecast data for three experimental ``stages'':
Stage 2 represents in-progress projects relevant to dark energy; Stage 3 refers
to medium sized experiments; Stage 4 comprises larger projects. We determine
the posterior probability distribution for the parameters of the PNGB model
using Markov Chain Monte Carlo analysis. Utilizing data generated on a $\Lambda
CDM$ cosmology, we find that the relative power of the different data stages on
PNGB quintessence is roughly comparable to the DETF results for the $w_0-w_a$
parametrization of dark energy. We also generate data based on a PNGB
cosmological model that is consistent with a $\Lambda CDM$ fiducial model at
Stage 2. We find that Stage 4 data based on this PNGB fiducial model will rule
out a cosmological constant by at least $3 \sigma$.
| astro-ph | we analyze the constraining power of future dark energy experiments for pseudonambu goldstone boson pngb quintessence following the dark energy task force methodology we forecast data for three experimental stages stage 2 represents inprogress projects relevant to dark energy stage 3 refers to medium sized experiments stage 4 comprises larger projects we determine the posterior probability distribution for the parameters of the pngb model using markov chain monte carlo analysis utilizing data generated on a lambda cdm cosmology we find that the relative power of the different data stages on pngb quintessence is roughly comparable to the detf results for the w_0w_a parametrization of dark energy we also generate data based on a pngb cosmological model that is consistent with a lambda cdm fiducial model at stage 2 we find that stage 4 data based on this pngb fiducial model will rule out a cosmological constant by at least 3 sigma | [['we', 'analyze', 'the', 'constraining', 'power', 'of', 'future', 'dark', 'energy', 'experiments', 'for', 'pseudonambu', 'goldstone', 'boson', 'pngb', 'quintessence', 'following', 'the', 'dark', 'energy', 'task', 'force', 'methodology', 'we', 'forecast', 'data', 'for', 'three', 'experimental', 'stages', 'stage', '2', 'represents', 'inprogress', 'projects', 'relevant', 'to', 'dark', 'energy', 'stage', '3', 'refers', 'to', 'medium', 'sized', 'experiments', 'stage', '4', 'comprises', 'larger', 'projects', 'we', 'determine', 'the', 'posterior', 'probability', 'distribution', 'for', 'the', 'parameters', 'of', 'the', 'pngb', 'model', 'using', 'markov', 'chain', 'monte', 'carlo', 'analysis', 'utilizing', 'data', 'generated', 'on', 'a', 'lambda', 'cdm', 'cosmology', 'we', 'find', 'that', 'the', 'relative', 'power', 'of', 'the', 'different', 'data', 'stages', 'on', 'pngb', 'quintessence', 'is', 'roughly', 'comparable', 'to', 'the', 'detf', 'results', 'for', 'the', 'w_0w_a', 'parametrization', 'of', 'dark', 'energy', 'we', 'also', 'generate', 'data', 'based', 'on', 'a', 'pngb', 'cosmological', 'model', 'that', 'is', 'consistent', 'with', 'a', 'lambda', 'cdm', 'fiducial', 'model', 'at', 'stage', '2', 'we', 'find', 'that', 'stage', '4', 'data', 'based', 'on', 'this', 'pngb', 'fiducial', 'model', 'will', 'rule', 'out', 'a', 'cosmological', 'constant', 'by', 'at', 'least', '3', 'sigma']] | [-0.08672428061408514, 0.12706649797777367, -0.11370415466263989, 0.13834559288113346, -0.09937581318177727, -0.16317028410436696, -0.0179596623368808, 0.34844277287210457, -0.19761940670995326, -0.3496058844985897, 0.05519272399979909, -0.27056968205959986, -0.004793857582012154, 0.1771446349105446, 0.060707492809372626, 0.03869435607165789, 0.09311442893146482, 0.024386391863967013, 0.0018875582085071218, -0.259291812228594, 0.34663777916834054, 0.12806938967315962, 0.25196034147786533, -0.047672248932699494, 0.14497757313961152, -0.03180919618142263, -0.05701723928248744, -0.07701473263715276, -0.23069060659428267, 0.03220651985303381, 0.21197286186221714, 0.16462062985099704, 0.23906514764337844, -0.3755593772126448, -0.18870912433065326, 0.19391654026987562, 0.12431198893892055, 0.11670016197160824, -0.04781637329990599, -0.2530761347553193, 0.07418247121764002, -0.21360244444380236, -0.09104966003731485, -0.04108398938273999, -0.03236928601157142, -0.04431942948456299, -0.3063168940781955, 0.13888878200572471, -0.06782281660413739, -0.018462766331947402, -0.07542208397440267, -0.1819889537854404, -0.03810245237183689, -0.01586560622807469, 0.06814359925264826, 0.01682639377352023, 0.18472719547147584, -0.1890131376482491, -0.10193578710791883, 0.3870200390699289, -0.15578715691330614, -0.12158590575544448, 0.12227599721075041, -0.0883941394400271, -0.18444026979179867, 0.0960820195826375, 0.15804742655827855, 0.04272039755192024, -0.12538469682096054, 0.1061793447330298, 0.004490422946863518, 0.24951761829611285, 0.006916911815391816, -0.06400819504263484, 0.27028618236411583, 0.24692406990127452, 0.0018018164012013683, 0.06501213074600114, -0.11633114202490805, -0.11226583617609857, -0.3648863446510193, -0.11235924998594336, -0.17145803464354564, 0.022037303385892205, -0.15318524669038613, -0.06625715481959259, 0.3827472195979084, 0.16959503944404872, 0.2068380875303256, 0.08911643398845481, 0.3112442017662407, 0.04548865377545258, 0.04090487520481824, 0.03919940188315864, 0.25998902557084697, 0.040239393860656794, 0.07902620358327836, -0.1954946993366007, -0.028881660502231277, 0.0028416316598555112] |
712.288 | The evolution of the mass-metallicity relation at z~3 | We present preliminary results of an ESO-VLT large programme (AMAZE) aimed at
determining the evolution of the mass-metallicity relation at z~3 by means of
deep near-IR spectroscopy. Gas metallicities and stellar masses are measured
for an initial sample of nine star forming galaxies at z~3.3. When compared
with previous surveys, the mass-metallicity relation inferred at z~3.3 shows an
evolution significantly stronger than observed at lower redshifts. There are
also some indications that the metallicity evolution of low mass galaxies is
stronger relative to high mass systems, an effect which can be considered as
the chemical version of the galaxy downsizing. The mass-metallicity relation
observed at z~3.3 is difficult to reconcile with the predictions of some
hierarchical evolutionary models. We shortly discuss the possible implications
of such discrepancies.
| astro-ph | we present preliminary results of an esovlt large programme amaze aimed at determining the evolution of the massmetallicity relation at z3 by means of deep nearir spectroscopy gas metallicities and stellar masses are measured for an initial sample of nine star forming galaxies at z33 when compared with previous surveys the massmetallicity relation inferred at z33 shows an evolution significantly stronger than observed at lower redshifts there are also some indications that the metallicity evolution of low mass galaxies is stronger relative to high mass systems an effect which can be considered as the chemical version of the galaxy downsizing the massmetallicity relation observed at z33 is difficult to reconcile with the predictions of some hierarchical evolutionary models we shortly discuss the possible implications of such discrepancies | [['we', 'present', 'preliminary', 'results', 'of', 'an', 'esovlt', 'large', 'programme', 'amaze', 'aimed', 'at', 'determining', 'the', 'evolution', 'of', 'the', 'massmetallicity', 'relation', 'at', 'z3', 'by', 'means', 'of', 'deep', 'nearir', 'spectroscopy', 'gas', 'metallicities', 'and', 'stellar', 'masses', 'are', 'measured', 'for', 'an', 'initial', 'sample', 'of', 'nine', 'star', 'forming', 'galaxies', 'at', 'z33', 'when', 'compared', 'with', 'previous', 'surveys', 'the', 'massmetallicity', 'relation', 'inferred', 'at', 'z33', 'shows', 'an', 'evolution', 'significantly', 'stronger', 'than', 'observed', 'at', 'lower', 'redshifts', 'there', 'are', 'also', 'some', 'indications', 'that', 'the', 'metallicity', 'evolution', 'of', 'low', 'mass', 'galaxies', 'is', 'stronger', 'relative', 'to', 'high', 'mass', 'systems', 'an', 'effect', 'which', 'can', 'be', 'considered', 'as', 'the', 'chemical', 'version', 'of', 'the', 'galaxy', 'downsizing', 'the', 'massmetallicity', 'relation', 'observed', 'at', 'z33', 'is', 'difficult', 'to', 'reconcile', 'with', 'the', 'predictions', 'of', 'some', 'hierarchical', 'evolutionary', 'models', 'we', 'shortly', 'discuss', 'the', 'possible', 'implications', 'of', 'such', 'discrepancies']] | [-0.043646990024350865, 0.11998451806973358, -0.088454221800615, 0.1628142504083858, -0.0718785172464018, -0.05526332959430072, 0.02160897802957517, 0.4372655123648212, -0.1499436186758552, -0.3726685446701709, 0.038208314316625906, -0.295318346015933, -0.039807195507547286, 0.21932387804451187, -0.0038441209173871306, -0.005105910595418431, 0.043100646597269775, -0.09784695118900359, -0.09034185221017244, -0.310768842858475, 0.34400490771861764, 0.12273825126251858, 0.19601862746342194, -0.013176223556474439, 0.05801456584411813, -0.12685974373291503, -0.08492221380400611, -0.011501015970615421, -0.19994361428242574, -0.013577004982613203, 0.24429804695840382, 0.12434439993221459, 0.248079731664437, -0.3339324835245016, -0.16141003714214394, 0.07355863689071422, 0.20525451459899896, 0.08863471990256885, -0.13325236577129973, -0.2294836306988489, 0.06086708596122899, -0.15650859656633706, -0.19086261412979463, 0.06944927773401728, 0.026915013313469453, -0.003437753341446711, -0.2014388375893587, 0.16318308438268841, -0.005709421668487223, 0.14257559753719748, -0.11899974181016129, -0.14792443966258348, -0.10893420150547516, 0.0902508938839516, -0.0006902032755461969, 0.07056911742153364, 0.13626708256311745, -0.16482792542440686, -0.0225705433761569, 0.3990895270597278, -0.0853848202456766, 0.026325280257449374, 0.2701884555725718, -0.23238227330514882, -0.22088391973277716, 0.07221547884529265, 0.14138945418696, 0.08503153542144679, -0.1742731778371179, -0.02144774944566403, 0.0034466173763819568, 0.20042101043555152, 0.013045988830290442, 0.06896192961251894, 0.32241456347745, 0.160283819087561, 0.02921896090173698, 0.04349711181698587, -0.13549112059601295, -0.01701116191606426, -0.23752606011868463, -0.08488344515519818, -0.10152868779126818, 0.06620046825654159, -0.15420774540093482, -0.0389623839195495, 0.2799802733306575, 0.16079597791114192, 0.2723702202971812, 0.15382056156316345, 0.28709542009187494, 0.1534204411707217, 0.12656607726720845, 0.056212812442127176, 0.30602981449576006, 0.1790014574520554, 0.07876826735492062, -0.2902760713170539, 0.10628131809314405, 0.0013527082843984674] |
712.2881 | From quasi-entropy to skew information | This paper gives an overview about particular quasi-entropies, generalized
quantum covariances, quantum Fisher informations, skew-informations and their
relations. The point is the dependence on operator monotone functions. It is
proven that a skew-information is the Hessian of a quasi-entropy. The
skew-information and some inequalities are extended to a von Neumann algebra
setting.
| math.FA math-ph math.MP math.ST stat.TH | this paper gives an overview about particular quasientropies generalized quantum covariances quantum fisher informations skewinformations and their relations the point is the dependence on operator monotone functions it is proven that a skewinformation is the hessian of a quasientropy the skewinformation and some inequalities are extended to a von neumann algebra setting | [['this', 'paper', 'gives', 'an', 'overview', 'about', 'particular', 'quasientropies', 'generalized', 'quantum', 'covariances', 'quantum', 'fisher', 'informations', 'skewinformations', 'and', 'their', 'relations', 'the', 'point', 'is', 'the', 'dependence', 'on', 'operator', 'monotone', 'functions', 'it', 'is', 'proven', 'that', 'a', 'skewinformation', 'is', 'the', 'hessian', 'of', 'a', 'quasientropy', 'the', 'skewinformation', 'and', 'some', 'inequalities', 'are', 'extended', 'to', 'a', 'von', 'neumann', 'algebra', 'setting']] | [-0.11279499815890984, 0.08144822113521216, -0.15373867875611297, 0.14529450909158556, -0.1107325720866876, -0.15277517998439014, -0.019396486414159288, 0.29123979502794695, -0.2991441184160661, -0.1703121906564552, 0.16527483642709498, -0.35503863035796246, -0.1912660339124957, 0.21438254224022432, -0.12015559495787839, 0.07358402662853501, 0.05600471756592089, 0.09509653200832557, -0.16527910047324793, -0.2532910941434758, 0.3750266783433605, 0.056179713783310534, 0.2572072988984232, 0.09978277634411138, 0.1116895041219434, 0.014153231861906089, -0.026277091496681074, 0.01061002967156926, -0.18279575328987058, 0.16478682115521967, 0.25269443878538106, 0.148199237493456, 0.3018310823458798, -0.34926283819486903, -0.1512742608937682, 0.14602993896269068, 0.08142403282263146, 0.09331746492534876, -0.003139913911284993, -0.2987731991297736, 0.01132667298447721, -0.1891041433020514, -0.0924935134826228, -0.09460451075693174, 0.018055759969034364, -0.017319163281413516, -0.29265459033907676, 0.07447000976879986, 0.11899439053495928, 0.0774490436068641, -0.016208747449349994, -0.08321761216360088, 0.027918942158623616, 0.07370500420505295, -0.05904461411588198, 0.021169382622655556, 0.12337347496376962, -0.06748686869134557, -0.09936683595997794, 0.29087081416605076, 0.036212660923448145, -0.2744211946823159, 0.10625742366347386, -0.1262393278849064, -0.12037082897423178, -0.02041613146168541, 0.0744803742545999, 0.09501510046954666, -0.18010348870361947, 0.167926972140368, -0.09416228681042486, 0.11488720948857788, 0.04274550489891244, 0.0848214431019614, 0.12900826943163968, 0.027910278896249984, 0.13269683617946446, 0.163896384430403, 0.019463819418368594, -0.16131074756992106, -0.35006568618879025, -0.19692426214555317, -0.19566053551222598, 0.10590327105351857, -0.13724104558267364, -0.19606702356618277, 0.37753757756507517, 0.09315177634814564, 0.17951179617702276, 0.08804671199308062, 0.2286444320153369, 0.1983968595765075, 0.0114374213319804, 0.07042931102938493, 0.15683164518167342, 0.28143525154006727, 0.10664317318789508, -0.1660643391292162, 0.064755262224935, 0.14092609833697883] |
712.2882 | Simultaneous Chandra, CSO and VLA Observations of Sgr A*: The Nature of
Flaring Activity | Sgr A*, the massive black hole at the center of the Galaxy, varies in radio
through X-ray emission on hourly time scales. The flare activity is thought to
arise from the innermost region of an accretion flow onto Sgr A*. We present
simultaneous light curves of Sgr A* in radio, sub-mm and X-rays that show a
possible time delay of 110$\pm17$ minutes between X-ray and 850 $\mu$m
suggesting that the sub-mm flare emission is optically thick. At radio
wavelengths, we detect time lags of of $20.4\pm6.8, 30\pm12$ and 20$\pm6$
minutes between the flare peaks observed at 13 and 7 mm (22 and 43 GHz) in
three different epochs using the VLA. Linear polarization of 1$\pm0.2$% and
0.7$\pm0.1$% is detected at 7 and 13 mm, respectively, when averaged over the
entire observation on 2006 July 17. A simple model of a bubble of synchrotron
emitting electrons cooling via adiabatic expansion can explain the time delay
between various wavelengths, the asymmetric shape of the light curves, and the
observed polarization of the flare emission at 43 and 22 GHz. The derived
physical quantities that characterize the emission give an expansion speed of
v$_{exp} \sim 0.003-0.1$c, magnetic field of B$\sim$10-70 Gauss and particle
spectral index p$\sim$1-2. These parameters suggest that the associated plasma
cannot escape from Sgr A* unless it has a large bulk motion.
| astro-ph | sgr a the massive black hole at the center of the galaxy varies in radio through xray emission on hourly time scales the flare activity is thought to arise from the innermost region of an accretion flow onto sgr a we present simultaneous light curves of sgr a in radio submm and xrays that show a possible time delay of 110pm17 minutes between xray and 850 mum suggesting that the submm flare emission is optically thick at radio wavelengths we detect time lags of of 204pm68 30pm12 and 20pm6 minutes between the flare peaks observed at 13 and 7 mm 22 and 43 ghz in three different epochs using the vla linear polarization of 1pm02 and 07pm01 is detected at 7 and 13 mm respectively when averaged over the entire observation on 2006 july 17 a simple model of a bubble of synchrotron emitting electrons cooling via adiabatic expansion can explain the time delay between various wavelengths the asymmetric shape of the light curves and the observed polarization of the flare emission at 43 and 22 ghz the derived physical quantities that characterize the emission give an expansion speed of v_exp sim 000301c magnetic field of bsim1070 gauss and particle spectral index psim12 these parameters suggest that the associated plasma cannot escape from sgr a unless it has a large bulk motion | [['sgr', 'a', 'the', 'massive', 'black', 'hole', 'at', 'the', 'center', 'of', 'the', 'galaxy', 'varies', 'in', 'radio', 'through', 'xray', 'emission', 'on', 'hourly', 'time', 'scales', 'the', 'flare', 'activity', 'is', 'thought', 'to', 'arise', 'from', 'the', 'innermost', 'region', 'of', 'an', 'accretion', 'flow', 'onto', 'sgr', 'a', 'we', 'present', 'simultaneous', 'light', 'curves', 'of', 'sgr', 'a', 'in', 'radio', 'submm', 'and', 'xrays', 'that', 'show', 'a', 'possible', 'time', 'delay', 'of', '110pm17', 'minutes', 'between', 'xray', 'and', '850', 'mum', 'suggesting', 'that', 'the', 'submm', 'flare', 'emission', 'is', 'optically', 'thick', 'at', 'radio', 'wavelengths', 'we', 'detect', 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712.2883 | The impact of the 18F(a,p)21Ne reaction on asymptotic giant branch
nucleosynthesis | We present detailed models of low and intermediate-mass asymptotic giant
branch (AGB) stars with and without the 18F(a,p)21Ne reaction included in the
nuclear network, where the rate for this reaction has been recently
experimentally evaluated for the first time. The lower and recommended measured
rates for this reaction produce negligible changes to the stellar yields,
whereas the upper limit of the rate affects the production of 19F and 21Ne. The
stellar yields increase by ~50% to up to a factor of 4.5 for 19F, and by
factors of ~2 to 9.6 for 21Ne. While the 18}F(a,p)21Ne reaction competes with
18O production, the extra protons released are captured by 18O to facilitate
the 18O(p,a)15N(a,g)19F chain. The higher abundances of 19F obtained using the
upper limit of the rate helps to match the [F/O] ratios observed in AGB stars,
but only for large C/O ratios. Extra-mixing processes are proposed to help to
solve this problem. Some evidence that the 18F(a,p)21Ne rate might be closer to
its upper limit is provided by the fact that the higher calculated 21Ne/22Ne
ratios in the He intershell provide an explanation for the Ne isotopic
composition of silicon-carbide grains from AGB stars. This needs to be
confirmed by future experiments of the 18F(a,p)21Ne reaction rate. The
availability of accurate fluorine yields from AGB stars will be fundamental for
interpreting observations of this element in carbon-enhanced metal-poor stars.
| astro-ph | we present detailed models of low and intermediatemass asymptotic giant branch agb stars with and without the 18fap21ne reaction included in the nuclear network where the rate for this reaction has been recently experimentally evaluated for the first time the lower and recommended measured rates for this reaction produce negligible changes to the stellar yields whereas the upper limit of the rate affects the production of 19f and 21ne the stellar yields increase by 50 to up to a factor of 45 for 19f and by factors of 2 to 96 for 21ne while the 18fap21ne reaction competes with 18o production the extra protons released are captured by 18o to facilitate the 18opa15nag19f chain the higher abundances of 19f obtained using the upper limit of the rate helps to match the fo ratios observed in agb stars but only for large co ratios extramixing processes are proposed to help to solve this problem some evidence that the 18fap21ne rate might be closer to its upper limit is provided by the fact that the higher calculated 21ne22ne ratios in the he intershell provide an explanation for the ne isotopic composition of siliconcarbide grains from agb stars this needs to be confirmed by future experiments of the 18fap21ne reaction rate the availability of accurate fluorine yields from agb stars will be fundamental for interpreting observations of this element in carbonenhanced metalpoor stars | [['we', 'present', 'detailed', 'models', 'of', 'low', 'and', 'intermediatemass', 'asymptotic', 'giant', 'branch', 'agb', 'stars', 'with', 'and', 'without', 'the', '18fap21ne', 'reaction', 'included', 'in', 'the', 'nuclear', 'network', 'where', 'the', 'rate', 'for', 'this', 'reaction', 'has', 'been', 'recently', 'experimentally', 'evaluated', 'for', 'the', 'first', 'time', 'the', 'lower', 'and', 'recommended', 'measured', 'rates', 'for', 'this', 'reaction', 'produce', 'negligible', 'changes', 'to', 'the', 'stellar', 'yields', 'whereas', 'the', 'upper', 'limit', 'of', 'the', 'rate', 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712.2884 | Exploring Parameter Constraints on Quintessential Dark Energy: The
Exponential Model | We present an analysis of a scalar field model of dark energy with an
exponential potential using the Dark Energy Task Force (DETF) simulated data
models. Using Markov Chain Monte Carlo sampling techniques we examine the
ability of each simulated data set to constrain the parameter space of the
exponential potential for data sets based on a cosmological constant and a
specific exponential scalar field model. We compare our results with the
constraining power calculated by the DETF using their ``$w_0-w_a$''
parametrization of the dark energy. We find that respective increases in
constraining power from one stage to the next produced by our analysis give
results consistent with DETF results. To further investigate the potential
impact of future experiments, we also generate simulated data for an
exponential model background cosmology which can not be distinguished from a
cosmological constant at DETF ``Stage 2'', and show that for this cosmology
good DETF Stage 4 data would exclude a cosmological constant by better than
3$\sigma$.
| astro-ph | we present an analysis of a scalar field model of dark energy with an exponential potential using the dark energy task force detf simulated data models using markov chain monte carlo sampling techniques we examine the ability of each simulated data set to constrain the parameter space of the exponential potential for data sets based on a cosmological constant and a specific exponential scalar field model we compare our results with the constraining power calculated by the detf using their w_0w_a parametrization of the dark energy we find that respective increases in constraining power from one stage to the next produced by our analysis give results consistent with detf results to further investigate the potential impact of future experiments we also generate simulated data for an exponential model background cosmology which can not be distinguished from a cosmological constant at detf stage 2 and show that for this cosmology good detf stage 4 data would exclude a cosmological constant by better than 3sigma | [['we', 'present', 'an', 'analysis', 'of', 'a', 'scalar', 'field', 'model', 'of', 'dark', 'energy', 'with', 'an', 'exponential', 'potential', 'using', 'the', 'dark', 'energy', 'task', 'force', 'detf', 'simulated', 'data', 'models', 'using', 'markov', 'chain', 'monte', 'carlo', 'sampling', 'techniques', 'we', 'examine', 'the', 'ability', 'of', 'each', 'simulated', 'data', 'set', 'to', 'constrain', 'the', 'parameter', 'space', 'of', 'the', 'exponential', 'potential', 'for', 'data', 'sets', 'based', 'on', 'a', 'cosmological', 'constant', 'and', 'a', 'specific', 'exponential', 'scalar', 'field', 'model', 'we', 'compare', 'our', 'results', 'with', 'the', 'constraining', 'power', 'calculated', 'by', 'the', 'detf', 'using', 'their', 'w_0w_a', 'parametrization', 'of', 'the', 'dark', 'energy', 'we', 'find', 'that', 'respective', 'increases', 'in', 'constraining', 'power', 'from', 'one', 'stage', 'to', 'the', 'next', 'produced', 'by', 'our', 'analysis', 'give', 'results', 'consistent', 'with', 'detf', 'results', 'to', 'further', 'investigate', 'the', 'potential', 'impact', 'of', 'future', 'experiments', 'we', 'also', 'generate', 'simulated', 'data', 'for', 'an', 'exponential', 'model', 'background', 'cosmology', 'which', 'can', 'not', 'be', 'distinguished', 'from', 'a', 'cosmological', 'constant', 'at', 'detf', 'stage', '2', 'and', 'show', 'that', 'for', 'this', 'cosmology', 'good', 'detf', 'stage', '4', 'data', 'would', 'exclude', 'a', 'cosmological', 'constant', 'by', 'better', 'than', '3sigma']] | [-0.058030213909280814, 0.07251502422891211, -0.1231483687115319, 0.11026723285997, -0.08746863424526585, -0.14096500408018658, 0.01674029493755861, 0.3450707041664175, -0.23140294581903087, -0.37415152033962357, 0.07749041304937879, -0.2557971413230146, -0.05313439859774398, 0.24661410299695433, 0.03751082752082794, 0.033850065415303374, 0.0907202358629006, 0.023900620970715044, -0.04681989710857989, -0.2867686234563132, 0.32861982851054955, 0.16494836457690762, 0.24134113294989487, 0.0019534357646308793, 0.10491876505055334, -0.03767517377748125, -0.07871337456948643, 0.012445039421347101, -0.20845272484050845, 0.0875428336575353, 0.1812488754429939, 0.14761415763009636, 0.23438790783806035, -0.4142820003493889, -0.23184495784079462, 0.1904794272446742, 0.12300870612412235, 0.12556588741382185, -0.08538089251285705, -0.2675948778247358, 0.07243721990755393, -0.1776784152375317, -0.12592697368957606, -0.10100912118324884, -0.05322856281061251, 0.01431484528612974, -0.2923003022467569, 0.10332104814809495, -0.0447450417413182, -0.006956379906348655, -0.10892067474678753, -0.14216560776134027, -0.016336453534331333, 0.04535675157387198, 0.05804921972331094, 0.046376414591320816, 0.14574556791457843, -0.16373638047635317, -0.13346194396898195, 0.37363926645802575, -0.15983259546946507, -0.15905058394226193, 0.13358729683074164, -0.1182386760994152, -0.14355030426547713, 0.08386052770688673, 0.16507764242623754, 0.04809094455230273, -0.13745875138074495, 0.08435199349944371, 0.03014114481808355, 0.22015242004178556, 0.016454392008517692, -0.059377915820141146, 0.23166969860189715, 0.18173193101959725, 0.021720074611413148, 0.1044403605507344, -0.10999210384971479, -0.07644096497686272, -0.3288761177871582, -0.11865078748712328, -0.19434520432531285, 0.026583316998125592, -0.17109774904410593, -0.1103646459287901, 0.3864633020933466, 0.18319157331793604, 0.22434824343165097, 0.10006187759136975, 0.3329180750504502, 0.08533169000712723, 0.025497966184583637, 0.04558241519340645, 0.2705970607573692, 0.04364661691693212, 0.07448979462868323, -0.21377353928626108, -0.003128729183569642, -0.03506822402137646] |
712.2885 | BAT X-ray Survey - I: Methodology and X-ray Identification | We applied the Maximum Likelihood method, as an image reconstruction
algorithm, to the BAT X-ray Survey (BXS). This method was specifically designed
to preserve the full statistical information in the data and to avoid
mosaicking of many exposures with different pointing directions, thus reducing
systematic errors when co-adding images. We reconstructed, in the 14-170 keV
energy band, the image of a 90x90 deg$^2$ sky region, centered on
(RA,DEC)=105$^{\circ}$,-25$^{\circ}$, which BAT surveyed with an exposure time
of $\sim1$ Ms (in Nov. 2005). The best sensitivity in our image is $\sim0.85$
mCrab or $2.0\times 10^{-11}$ erg cm$^{-2}$. We detect 49 hard X-ray sources
above the 4.5 $\sigma$ level; of these, only 12 were previously known as hard
X-ray sources ($>$15 keV). Swift/XRT observations allowed us to firmly identify
the counterparts for 15 objects, while 2 objects have Einstein IPC counterparts
\citep{harris90}; in addition to those, we found a likely counterpart for 13
objects by correlating our sample with the ROSAT All-Sky Survey Bright Source
Catalog \citep{voges99}. 7 objects remain unidentified. Analysis of the noise
properties of our image shows that $\sim75$% of the area is surveyed to a flux
limit of $\sim$1 mCrab. This study shows that the coupling of the Maximum
Likelihood method to the most sensitive, all-sky surveying, hard X-ray
instrument, BAT, is able to probe for the first time the hard X-ray sky to the
mCrab flux level. The successful application of this method to BAT demonstrates
that it could also be applied with advantage to similar instruments like
INTEGRAL-IBIS.
| astro-ph | we applied the maximum likelihood method as an image reconstruction algorithm to the bat xray survey bxs this method was specifically designed to preserve the full statistical information in the data and to avoid mosaicking of many exposures with different pointing directions thus reducing systematic errors when coadding images we reconstructed in the 14170 kev energy band the image of a 90x90 deg2 sky region centered on radec105circ25circ which bat surveyed with an exposure time of sim1 ms in nov 2005 the best sensitivity in our image is sim085 mcrab or 20times 1011 erg cm2 we detect 49 hard xray sources above the 45 sigma level of these only 12 were previously known as hard xray sources 15 kev swiftxrt observations allowed us to firmly identify the counterparts for 15 objects while 2 objects have einstein ipc counterparts citepharris90 in addition to those we found a likely counterpart for 13 objects by correlating our sample with the rosat allsky survey bright source catalog citepvoges99 7 objects remain unidentified analysis of the noise properties of our image shows that sim75 of the area is surveyed to a flux limit of sim1 mcrab this study shows that the coupling of the maximum likelihood method to the most sensitive allsky surveying hard xray instrument bat is able to probe for the first time the hard xray sky to the mcrab flux level the successful application of this method to bat demonstrates that it could also be applied with advantage to similar instruments like integralibis | [['we', 'applied', 'the', 'maximum', 'likelihood', 'method', 'as', 'an', 'image', 'reconstruction', 'algorithm', 'to', 'the', 'bat', 'xray', 'survey', 'bxs', 'this', 'method', 'was', 'specifically', 'designed', 'to', 'preserve', 'the', 'full', 'statistical', 'information', 'in', 'the', 'data', 'and', 'to', 'avoid', 'mosaicking', 'of', 'many', 'exposures', 'with', 'different', 'pointing', 'directions', 'thus', 'reducing', 'systematic', 'errors', 'when', 'coadding', 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712.2886 | Self-consistent quasiparticle model for 2, 3 and (2+1) flavor QGP | Quasi-particle model of quark gluon plasma is the statistical mechanics of
particles with medium dependent mass, related to plasma frequency, which was
proposed to describe the thermodynamics of the medium itself. At relativistic
limit the plasma frequency depends on number density and temperature. The
number density is a thermodynamic quantity of the medium which in turn depends
on plasma frequency. Hence, one need to solve this problem self-consistently,
instead of using perturbative expressions for plasma frequency. Here we carry
out such a self-consistent calculations using our, recently developed, a new
formulations of quasiparticle model. By adjusting a single parameter for each
system, a remarkably good fit to lattice QCD results are obtained for 2, 3 and
(2+1) flavor quark gluon plasma systems, first, with zero chemical potential.
Then, it is extended to systems with finite chemical potential and fits very
well the lattice results without any new parameter.
| hep-ph | quasiparticle model of quark gluon plasma is the statistical mechanics of particles with medium dependent mass related to plasma frequency which was proposed to describe the thermodynamics of the medium itself at relativistic limit the plasma frequency depends on number density and temperature the number density is a thermodynamic quantity of the medium which in turn depends on plasma frequency hence one need to solve this problem selfconsistently instead of using perturbative expressions for plasma frequency here we carry out such a selfconsistent calculations using our recently developed a new formulations of quasiparticle model by adjusting a single parameter for each system a remarkably good fit to lattice qcd results are obtained for 2 3 and 21 flavor quark gluon plasma systems first with zero chemical potential then it is extended to systems with finite chemical potential and fits very well the lattice results without any new parameter | [['quasiparticle', 'model', 'of', 'quark', 'gluon', 'plasma', 'is', 'the', 'statistical', 'mechanics', 'of', 'particles', 'with', 'medium', 'dependent', 'mass', 'related', 'to', 'plasma', 'frequency', 'which', 'was', 'proposed', 'to', 'describe', 'the', 'thermodynamics', 'of', 'the', 'medium', 'itself', 'at', 'relativistic', 'limit', 'the', 'plasma', 'frequency', 'depends', 'on', 'number', 'density', 'and', 'temperature', 'the', 'number', 'density', 'is', 'a', 'thermodynamic', 'quantity', 'of', 'the', 'medium', 'which', 'in', 'turn', 'depends', 'on', 'plasma', 'frequency', 'hence', 'one', 'need', 'to', 'solve', 'this', 'problem', 'selfconsistently', 'instead', 'of', 'using', 'perturbative', 'expressions', 'for', 'plasma', 'frequency', 'here', 'we', 'carry', 'out', 'such', 'a', 'selfconsistent', 'calculations', 'using', 'our', 'recently', 'developed', 'a', 'new', 'formulations', 'of', 'quasiparticle', 'model', 'by', 'adjusting', 'a', 'single', 'parameter', 'for', 'each', 'system', 'a', 'remarkably', 'good', 'fit', 'to', 'lattice', 'qcd', 'results', 'are', 'obtained', 'for', '2', '3', 'and', '21', 'flavor', 'quark', 'gluon', 'plasma', 'systems', 'first', 'with', 'zero', 'chemical', 'potential', 'then', 'it', 'is', 'extended', 'to', 'systems', 'with', 'finite', 'chemical', 'potential', 'and', 'fits', 'very', 'well', 'the', 'lattice', 'results', 'without', 'any', 'new', 'parameter']] | [-0.06472723533688868, 0.19913704525931059, -0.12058264250879654, 0.03539456205121619, -0.06581344685794131, -0.12727331898389133, 0.08573151489946286, 0.3451075145370654, -0.20250391393799233, -0.29008350849176784, 0.030010469757316232, -0.24000551974923173, -0.03982456382112326, 0.16413606054659277, 0.03355928887676045, 0.08399066566552564, 0.019304949192430924, 0.023385127501348284, -0.06058648264985783, -0.19287100115419692, 0.32242950076249904, 0.08205343421070359, 0.24990019013765394, 0.12038268154877163, 0.08659325047345781, -0.004677010904620024, -0.030443679638886573, 0.04215264269402502, -0.11287760888434777, 0.018443323903861834, 0.18637126755060604, 0.02769286699932874, 0.21140703482779902, -0.40679189392894105, -0.27724433661048375, 0.057585407872810156, 0.15163891894327527, 0.14592863480101112, -0.037964356875965825, -0.20409791516391812, 0.05178429306849737, -0.2158590909848745, -0.18484748227559533, -0.0973320585373487, -0.0035730891458287434, 0.024124134744114772, -0.32024471908870683, 0.09309745743568684, -0.03208485697915249, 0.0035763163432912318, -0.06811478900144229, -0.1405510092335061, -0.026782911091514334, 0.06863429904813136, 0.031168086334710587, 0.07916841904532064, 0.182768862590672, -0.13716283654699707, -0.06549716320335613, 0.42631737899815514, -0.06460576352578387, -0.20203413141771798, 0.17931524744789065, -0.17534111214587716, -0.1321248775757094, 0.14461225394562288, 0.1414954162618095, 0.08702597201713738, -0.19437505603088318, 0.08575053352782365, -0.045595366764196975, 0.19981506057838733, 0.06488587974249763, 0.030358417670720735, 0.24551814932350977, 0.17972224305786594, -0.004881019848776427, 0.09597605219460092, -0.04707330930663424, -0.0913045447747651, -0.2973788700418899, -0.08401659105013981, -0.19624721848663898, 0.01645386537593613, -0.10676613641830832, -0.17937428749015405, 0.4097412089955666, 0.15540901277642194, 0.1693188930339356, -0.00525066236543746, 0.30323609807591484, 0.17001749284178447, 0.028270488930944783, 0.0878314124278699, 0.22963957258852552, 0.19203869958338957, 0.14113798018897306, -0.2710773252215035, -0.03477866419062421, 0.08955374025941096] |
712.2887 | Approximation of the joint spectral radius using sum of squares | We provide an asymptotically tight, computationally efficient approximation
of the joint spectral radius of a set of matrices using sum of squares (SOS)
programming. The approach is based on a search for an SOS polynomial that
proves simultaneous contractibility of a finite set of matrices. We provide a
bound on the quality of the approximation that unifies several earlier results
and is independent of the number of matrices. Additionally, we present a
comparison between our approximation scheme and earlier techniques, including
the use of common quadratic Lyapunov functions and a method based on matrix
liftings. Theoretical results and numerical investigations show that our
approach yields tighter approximations.
| math.OC | we provide an asymptotically tight computationally efficient approximation of the joint spectral radius of a set of matrices using sum of squares sos programming the approach is based on a search for an sos polynomial that proves simultaneous contractibility of a finite set of matrices we provide a bound on the quality of the approximation that unifies several earlier results and is independent of the number of matrices additionally we present a comparison between our approximation scheme and earlier techniques including the use of common quadratic lyapunov functions and a method based on matrix liftings theoretical results and numerical investigations show that our approach yields tighter approximations | [['we', 'provide', 'an', 'asymptotically', 'tight', 'computationally', 'efficient', 'approximation', 'of', 'the', 'joint', 'spectral', 'radius', 'of', 'a', 'set', 'of', 'matrices', 'using', 'sum', 'of', 'squares', 'sos', 'programming', 'the', 'approach', 'is', 'based', 'on', 'a', 'search', 'for', 'an', 'sos', 'polynomial', 'that', 'proves', 'simultaneous', 'contractibility', 'of', 'a', 'finite', 'set', 'of', 'matrices', 'we', 'provide', 'a', 'bound', 'on', 'the', 'quality', 'of', 'the', 'approximation', 'that', 'unifies', 'several', 'earlier', 'results', 'and', 'is', 'independent', 'of', 'the', 'number', 'of', 'matrices', 'additionally', 'we', 'present', 'a', 'comparison', 'between', 'our', 'approximation', 'scheme', 'and', 'earlier', 'techniques', 'including', 'the', 'use', 'of', 'common', 'quadratic', 'lyapunov', 'functions', 'and', 'a', 'method', 'based', 'on', 'matrix', 'liftings', 'theoretical', 'results', 'and', 'numerical', 'investigations', 'show', 'that', 'our', 'approach', 'yields', 'tighter', 'approximations']] | [-0.12242999826949612, -0.010945679382453716, -0.14733553383168635, 0.052734690885903816, -0.05118950052517597, -0.08613209383753694, 0.09978512708297888, 0.35656124698085206, -0.21450754690253845, -0.2670936914439374, 0.11207544683069687, -0.23172446970270824, -0.20586774382461734, 0.2483280125687717, -0.030080694879326866, 0.10194956416386032, 0.08225394388939315, -0.004744474797305068, -0.13306375768549183, -0.286724715919025, 0.31043285627579575, 0.03937811431448872, 0.25371678185727553, 0.08119049857187773, 0.1090956341527472, 0.042501805448647866, -0.05914174264436153, 0.019406693996252302, -0.13769694044635247, 0.20193974700760858, 0.2183158290333106, 0.19421691199699057, 0.28399861882501676, -0.40607137169480045, -0.14717547884472063, 0.07351247728726104, 0.11619485344598506, 0.0817691464560263, -0.05845328318020416, -0.21075284871855907, 0.10716278661503761, -0.16624344223849127, -0.09598472726609662, -0.12957373169407457, -0.03131718423530877, 0.030871518844059694, -0.3669013082284794, 0.06365115237781326, 0.09493653987568072, 0.04556335272075974, -0.06020247184880356, -0.20217954766040094, 0.09110443579102649, 0.06110467280861791, -0.0032944018761061618, -0.01260779781058152, 0.040936925209118666, -0.01601586177962545, -0.1471181841149369, 0.3273390889359273, -0.07432720016374766, -0.2262715201185163, 0.1834952857293119, -0.08146760464759073, -0.14614436691888025, 0.11681376909401929, 0.17961573290038052, 0.17842225534389902, -0.108271117304739, 0.10957785746056552, -0.1437374925987238, 0.17493482092482465, 0.029038322062414385, 0.022941480529990708, 0.12604708610990337, 0.15385363953597148, 0.13980832499251744, 0.145265605627063, -0.012659594127212032, -0.08756848019939438, -0.30126324059685394, -0.11914021104724347, -0.2286398313312887, 0.004974570367964002, -0.16377454995619412, -0.20571503295589275, 0.4136839660188054, 0.13406826267410593, 0.19644973212341718, 0.16839047165361243, 0.3207507303907214, 0.12809665888253052, 0.011396088715747137, 0.07643293836545721, 0.20678587561085926, 0.1806334174090178, -0.006485228109060325, -0.19939060347637805, 0.043054878615957, 0.15241021776101857] |
712.2888 | Quantum serial turbo-codes | We present a theory of quantum serial turbo-codes, describe their iterative
decoding algorithm, and study their performances numerically on a
depolarization channel. Our construction offers several advantages over quantum
LDPC codes. First, the Tanner graph used for decoding is free of 4-cycles that
deteriorate the performances of iterative decoding. Secondly, the iterative
decoder makes explicit use of the code's degeneracy. Finally, there is complete
freedom in the code design in terms of length, rate, memory size, and
interleaver choice.
We define a quantum analogue of a state diagram that provides an efficient
way to verify the properties of a quantum convolutional code, and in particular
its recursiveness and the presence of catastrophic error propagation. We prove
that all recursive quantum convolutional encoder have catastrophic error
propagation. In our constructions, the convolutional codes have thus been
chosen to be non-catastrophic and non-recursive. While the resulting families
of turbo-codes have bounded minimum distance, from a pragmatic point of view
the effective minimum distances of the codes that we have simulated are large
enough not to degrade the iterative decoding performance up to reasonable word
error rates and block sizes. With well chosen constituent convolutional codes,
we observe an important reduction of the word error rate as the code length
increases.
| quant-ph | we present a theory of quantum serial turbocodes describe their iterative decoding algorithm and study their performances numerically on a depolarization channel our construction offers several advantages over quantum ldpc codes first the tanner graph used for decoding is free of 4cycles that deteriorate the performances of iterative decoding secondly the iterative decoder makes explicit use of the codes degeneracy finally there is complete freedom in the code design in terms of length rate memory size and interleaver choice we define a quantum analogue of a state diagram that provides an efficient way to verify the properties of a quantum convolutional code and in particular its recursiveness and the presence of catastrophic error propagation we prove that all recursive quantum convolutional encoder have catastrophic error propagation in our constructions the convolutional codes have thus been chosen to be noncatastrophic and nonrecursive while the resulting families of turbocodes have bounded minimum distance from a pragmatic point of view the effective minimum distances of the codes that we have simulated are large enough not to degrade the iterative decoding performance up to reasonable word error rates and block sizes with well chosen constituent convolutional codes we observe an important reduction of the word error rate as the code length increases | [['we', 'present', 'a', 'theory', 'of', 'quantum', 'serial', 'turbocodes', 'describe', 'their', 'iterative', 'decoding', 'algorithm', 'and', 'study', 'their', 'performances', 'numerically', 'on', 'a', 'depolarization', 'channel', 'our', 'construction', 'offers', 'several', 'advantages', 'over', 'quantum', 'ldpc', 'codes', 'first', 'the', 'tanner', 'graph', 'used', 'for', 'decoding', 'is', 'free', 'of', '4cycles', 'that', 'deteriorate', 'the', 'performances', 'of', 'iterative', 'decoding', 'secondly', 'the', 'iterative', 'decoder', 'makes', 'explicit', 'use', 'of', 'the', 'codes', 'degeneracy', 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712.2889 | Constraining Charming Penguins in Charmless B Decays | We discuss the correlations of charming penguin contributions to
$B\to\pi\pi$, $\pi K$ and KK using approximate flavor SU(3) symmetry. Strong
constraints are found from the direct CP asymmetries especially in $\pi K$
modes. We make a global fit to the latest data and find that only a small
charming penguin is allowed, and the size of color-suppressed tree amplitude
(C) relative to tree amplitudes (T) remains large $C/T\simeq0.6$, which
disfavors the possibility of a large charming penguin as an explanation for the
$\pi\pi$ puzzle. We show that a small charming penguin can still have sizable
effect in the time-dependence CP asymmetries in KK mode.
| hep-ph | we discuss the correlations of charming penguin contributions to btopipi pi k and kk using approximate flavor su3 symmetry strong constraints are found from the direct cp asymmetries especially in pi k modes we make a global fit to the latest data and find that only a small charming penguin is allowed and the size of colorsuppressed tree amplitude c relative to tree amplitudes t remains large ctsimeq06 which disfavors the possibility of a large charming penguin as an explanation for the pipi puzzle we show that a small charming penguin can still have sizable effect in the timedependence cp asymmetries in kk mode | [['we', 'discuss', 'the', 'correlations', 'of', 'charming', 'penguin', 'contributions', 'to', 'btopipi', 'pi', 'k', 'and', 'kk', 'using', 'approximate', 'flavor', 'su3', 'symmetry', 'strong', 'constraints', 'are', 'found', 'from', 'the', 'direct', 'cp', 'asymmetries', 'especially', 'in', 'pi', 'k', 'modes', 'we', 'make', 'a', 'global', 'fit', 'to', 'the', 'latest', 'data', 'and', 'find', 'that', 'only', 'a', 'small', 'charming', 'penguin', 'is', 'allowed', 'and', 'the', 'size', 'of', 'colorsuppressed', 'tree', 'amplitude', 'c', 'relative', 'to', 'tree', 'amplitudes', 't', 'remains', 'large', 'ctsimeq06', 'which', 'disfavors', 'the', 'possibility', 'of', 'a', 'large', 'charming', 'penguin', 'as', 'an', 'explanation', 'for', 'the', 'pipi', 'puzzle', 'we', 'show', 'that', 'a', 'small', 'charming', 'penguin', 'can', 'still', 'have', 'sizable', 'effect', 'in', 'the', 'timedependence', 'cp', 'asymmetries', 'in', 'kk', 'mode']] | [-0.18276090956591431, 0.2674132548873053, -0.062062625800376955, 0.1724403133600028, -0.1395518155700699, -0.12157182168504856, 0.1494949291487342, 0.29543066640990306, -0.26786599970124303, -0.24562417596433928, 0.02456681939967664, -0.3018336845471442, -0.07737719994128762, 0.09664794575712345, 0.051877821606326195, 0.010128987311087186, 0.08789616566969678, 0.013237786764116253, -0.02876447984785999, -0.14641342242248356, 0.2614216973837827, -0.057857883642020734, 0.19225683733278398, 0.14465916035154347, -0.04509298618118848, -0.02980977192394508, -0.09322655921603001, -0.004479681865031858, -0.11552933799354383, 0.015914314501643073, 0.2260435221635384, 0.11309309754615596, 0.06967465114752644, -0.36366363340826, -0.06300131876125606, 0.19061731981583735, 0.19290757788688812, 0.1546734435680476, -0.007397242731333358, -0.2929889343032451, 0.12879752736647151, -0.1728545034629772, -0.061238202176257986, -0.14781211013679654, 0.09351934730335257, -0.15627953175057485, -0.3530241996049881, 0.05784800976008466, -0.022962621604959883, 0.006673378571506264, 0.07099255092568624, -0.24224424986078322, -0.04995733159549028, 0.07444922506664563, 0.1382096885744193, 0.08422732395707692, 0.07738118147753288, -0.18780500887558588, -0.15587725549104434, 0.4029334301594645, -0.11870694600805207, -0.14284087747371602, 0.0951917697720736, -0.20217889533785072, -0.20037567653485294, 0.16273585853429096, 0.17160789897321788, 0.05263499427813973, -0.13433960117218854, 0.17386763766961788, -0.03147811516757729, 0.21290487020267446, 0.07018424301561944, 0.0881497635126331, 0.19648260698264952, 0.1451431322408822, 0.01844138669718093, 0.08620559676432783, -0.09169097776011591, -0.04978817966495396, -0.3720120516361542, -0.058570077606630556, -0.03782619353360044, 0.04552298702878281, -0.09799541898105109, -0.12203663780164083, 0.3343374754202742, 0.08745274541320876, 0.2895943832502348, 0.023160194061488563, 0.3013670298370343, 0.0738597510787161, 0.12069272806583135, 0.055161639826498854, 0.2978966300854984, 0.15924899518779181, 0.09795324887754847, -0.340061406114419, 0.07262118977666335, 0.005915108720039569] |
712.289 | A new approach for testing variations of fundamental constants over
cosmic epochs using FIR fine-structure lines | Aims. To obtain limits on the variation of the fine-structure constant alpha
and the electron-to-proton mass ratio mu over different cosmological epochs.
Methods. A new approach based on the comparison of redshifts of far infrared
(FIR) fine-structure lines and low-lying rotational transitions in CO is
proposed which is in principle more sensitive by a factor of 10 compared to QSO
metal absorption lines. Results. Estimations of the quotient F = alpha^2/mu
obtained for two distant quasars J1148+5251 (z = 6.42) and BR1202-0725 (z =
4.69) provide Delta F/F = (0.1+/-1.0)10^{-4} and (1.4+/-1.5)10^{-4},
respectively. The obtained limits are consistent with no variation of physical
constants at the level of 0.01% over a period of 13 Gyr. Conclusions. Upcoming
observations of quasars and distant galaxies in FIR fine-structure lines of
different species and in CO low rotational lines at the SOFIA, HSO, and ALMA
are expected to improve the current limit by, at least, an order of magnitude.
| astro-ph physics.atom-ph | aims to obtain limits on the variation of the finestructure constant alpha and the electrontoproton mass ratio mu over different cosmological epochs methods a new approach based on the comparison of redshifts of far infrared fir finestructure lines and lowlying rotational transitions in co is proposed which is in principle more sensitive by a factor of 10 compared to qso metal absorption lines results estimations of the quotient f alpha2mu obtained for two distant quasars j11485251 z 642 and br12020725 z 469 provide delta ff 0110104 and 1415104 respectively the obtained limits are consistent with no variation of physical constants at the level of 001 over a period of 13 gyr conclusions upcoming observations of quasars and distant galaxies in fir finestructure lines of different species and in co low rotational lines at the sofia hso and alma are expected to improve the current limit by at least an order of magnitude | [['aims', 'to', 'obtain', 'limits', 'on', 'the', 'variation', 'of', 'the', 'finestructure', 'constant', 'alpha', 'and', 'the', 'electrontoproton', 'mass', 'ratio', 'mu', 'over', 'different', 'cosmological', 'epochs', 'methods', 'a', 'new', 'approach', 'based', 'on', 'the', 'comparison', 'of', 'redshifts', 'of', 'far', 'infrared', 'fir', 'finestructure', 'lines', 'and', 'lowlying', 'rotational', 'transitions', 'in', 'co', 'is', 'proposed', 'which', 'is', 'in', 'principle', 'more', 'sensitive', 'by', 'a', 'factor', 'of', '10', 'compared', 'to', 'qso', 'metal', 'absorption', 'lines', 'results', 'estimations', 'of', 'the', 'quotient', 'f', 'alpha2mu', 'obtained', 'for', 'two', 'distant', 'quasars', 'j11485251', 'z', '642', 'and', 'br12020725', 'z', '469', 'provide', 'delta', 'ff', '0110104', 'and', '1415104', 'respectively', 'the', 'obtained', 'limits', 'are', 'consistent', 'with', 'no', 'variation', 'of', 'physical', 'constants', 'at', 'the', 'level', 'of', '001', 'over', 'a', 'period', 'of', '13', 'gyr', 'conclusions', 'upcoming', 'observations', 'of', 'quasars', 'and', 'distant', 'galaxies', 'in', 'fir', 'finestructure', 'lines', 'of', 'different', 'species', 'and', 'in', 'co', 'low', 'rotational', 'lines', 'at', 'the', 'sofia', 'hso', 'and', 'alma', 'are', 'expected', 'to', 'improve', 'the', 'current', 'limit', 'by', 'at', 'least', 'an', 'order', 'of', 'magnitude']] | [-0.07590980881747479, 0.08638157870086918, 0.030532671653976044, 0.04965221131996562, -0.014060655985570823, -0.10924002346893151, 0.0967202497071897, 0.4350427478303512, -0.12650698490440845, -0.3337867396262785, 0.04448266237353285, -0.301616011193643, 0.019911684589460493, 0.20228769206635963, 0.03437015027118226, -0.023940291193624338, -0.0056535052632292115, -0.09629383957149305, -0.05684509710408747, -0.24837110979482532, 0.2969615923333913, 0.09226883052693059, 0.1958962554919223, 0.026543180535857875, 0.08385902913908164, -0.13769362312547553, -0.09615888619426793, -0.0317994869997104, -0.19181213581934572, 0.07606962099050482, 0.2515463534090668, 0.09689455821799735, 0.2006639589361536, -0.28241860217104353, -0.16056352153265227, 0.06790127946684758, 0.14989077343295018, 0.04559270968272661, 0.0520869672386713, -0.29076546740718184, 0.06091970420946988, -0.09423153058315317, -0.14530359489377587, 0.04557546004652977, 0.051320366032111146, 0.019789851476283125, -0.24819629991427064, 0.11433868449996226, -0.028074933824439843, 0.14347279100989302, -0.10034175525108974, -0.18743880406642954, -0.07600146896981945, 0.06694109406710291, 0.033833610201254485, 0.08495558326384829, 0.15774741266233225, -0.11652759671521684, -0.08692888806884487, 0.4066231329754616, -0.16455961541971192, -0.021812496036291124, 0.203736002119064, -0.19265279218244055, -0.19200545333015423, 0.19777059031339983, 0.11731343150759736, 0.13093468989245594, -0.10289905308435361, 0.05853603436204139, 0.03955937129445374, 0.24668671966530384, 0.07541449003833502, 0.10134523068477089, 0.26124083696398887, 0.07037868936235706, 0.06073658084652076, 0.01843742809879283, -0.21009307064736882, 0.00044949463258186974, -0.2581674075530221, -0.11453930787897358, -0.13427476342068986, 0.10291772305344542, -0.1718235648230378, -0.06012641618649165, 0.33264030745252965, 0.10800378928310238, 0.24733635515905916, 0.06347970956858869, 0.30145643909151354, 0.11302813797451866, 0.06059644018425994, 0.04864355718716979, 0.32499254546128215, 0.1538639102441569, 0.09111226234740268, -0.21693892897727587, 0.037275161777312556, 0.02819757719989866] |
712.2891 | On homotopy of volterrian quadratic stochastic operators | In the present paper we introduce a notion of homotopy of two Volterra
operators which is related to fixed points of such operators. It is establish a
criterion when two Volterra operators are homotopic, as a consequence we obtain
that the corresponding tournaments of that operators are the same. This, due to
\cite{Ga1}, gives us a possibility to know some information about the
trajectory of homotopic Volterra operators. Moreover, it is shown that any
Volterra q.s.o. given on a face has at least two homotopic extension to the
whole simplex.
| math.DS math.FA | in the present paper we introduce a notion of homotopy of two volterra operators which is related to fixed points of such operators it is establish a criterion when two volterra operators are homotopic as a consequence we obtain that the corresponding tournaments of that operators are the same this due to citega1 gives us a possibility to know some information about the trajectory of homotopic volterra operators moreover it is shown that any volterra qso given on a face has at least two homotopic extension to the whole simplex | [['in', 'the', 'present', 'paper', 'we', 'introduce', 'a', 'notion', 'of', 'homotopy', 'of', 'two', 'volterra', 'operators', 'which', 'is', 'related', 'to', 'fixed', 'points', 'of', 'such', 'operators', 'it', 'is', 'establish', 'a', 'criterion', 'when', 'two', 'volterra', 'operators', 'are', 'homotopic', 'as', 'a', 'consequence', 'we', 'obtain', 'that', 'the', 'corresponding', 'tournaments', 'of', 'that', 'operators', 'are', 'the', 'same', 'this', 'due', 'to', 'citega1', 'gives', 'us', 'a', 'possibility', 'to', 'know', 'some', 'information', 'about', 'the', 'trajectory', 'of', 'homotopic', 'volterra', 'operators', 'moreover', 'it', 'is', 'shown', 'that', 'any', 'volterra', 'qso', 'given', 'on', 'a', 'face', 'has', 'at', 'least', 'two', 'homotopic', 'extension', 'to', 'the', 'whole', 'simplex']] | [-0.12769467714164154, 0.06914938663347008, -0.08358628451144008, 0.10662731891654934, -0.11934170158307873, -0.15485599371761585, 0.01003501659358611, 0.35438382165150695, -0.3143319184316343, -0.19067792799533084, 0.16616597595190358, -0.3199745909718985, -0.18844203935580306, 0.16605513164279145, -0.1289805538057653, 0.009769261641992946, 0.06769727607875058, 0.10813834500666498, -0.07427090900071133, -0.2538188232469969, 0.4165689643849148, -0.028425527474937144, 0.1574013427472912, 0.0650786276111442, 0.17752807582144853, -0.03794092174195632, -0.043661259685046555, -0.028829782432091704, -0.11477113328211917, 0.10639848847339829, 0.26687427566208866, 0.10675788627351436, 0.2823983731711011, -0.36490655691478024, -0.14065052141969123, 0.19484112338487353, 0.14051821276419954, 0.048615646874270495, 0.00658833742366706, -0.26743922434914646, 0.10100188821010041, -0.1281056303865789, -0.13053039270139227, -0.08468799144448189, -0.016766256061539555, 0.01660885066421849, -0.28995357730080573, -0.020675837548889135, 0.11235279154576612, 0.05253717514131678, -0.07570530005385366, -0.04074440812796689, -0.03770215237732935, 0.11271375887981469, 0.025294826284909012, 0.05131206281477941, 0.0505613776583099, -0.04195013847149741, -0.141754189045744, 0.3784796539903357, -0.04205697409944672, -0.2625301056070609, 0.18932815726154506, -0.1657311531579059, -0.1494904165208507, 0.09720884268486014, 0.09476374144393825, 0.14230595317700606, -0.19470050998814953, 0.10497983110273319, -0.12196347991192943, 0.12776127734922627, 0.0701289525192775, 0.04697345786864001, 0.13641696288302707, 0.11299929817814088, 0.20150736861161134, 0.17603237469670144, -0.008820216854238946, -0.07535814522671398, -0.33448685914947746, -0.18590714703994185, -0.129507069797726, 0.09444301129904774, -0.08634603336411581, -0.20421584560686273, 0.42171043156531085, 0.18017560417313924, 0.22105407123087664, 0.0978444244809386, 0.23497769447943467, 0.14061115102272145, 0.08827361608907748, 0.046467670045918626, 0.17289196231743856, 0.16386670949921178, 0.06443396335718839, -0.13140038178522098, 0.04267919601956278, 0.1960282571969575] |
712.2892 | Hilbert schemes of finite abelian group orbits and Grobner fans | Let $G$ be a finite abelian subgroup of
$PGL(r-1,K)=\mathrm{Aut}(\P^{r-1}_K)$. In this paper, we prove that the
normalization of the $G$-orbit Hilbert scheme $\Hilb^G(\P^{r-1})$ is described
as a toric variety, which corresponds to the Gr\"obner fan for some homogeneous
ideal $I$ of $K[x_1, ..., x_r]$.
| math.AG math.AC | let g be a finite abelian subgroup of pglr1kmathrmautpr1_k in this paper we prove that the normalization of the gorbit hilbert scheme hilbgpr1 is described as a toric variety which corresponds to the grobner fan for some homogeneous ideal i of kx_1 x_r | [['let', 'g', 'be', 'a', 'finite', 'abelian', 'subgroup', 'of', 'pglr1kmathrmautpr1_k', 'in', 'this', 'paper', 'we', 'prove', 'that', 'the', 'normalization', 'of', 'the', 'gorbit', 'hilbert', 'scheme', 'hilbgpr1', 'is', 'described', 'as', 'a', 'toric', 'variety', 'which', 'corresponds', 'to', 'the', 'grobner', 'fan', 'for', 'some', 'homogeneous', 'ideal', 'i', 'of', 'kx_1', 'x_r']] | [-0.1837996443869864, 0.07715378199681276, -0.10581445385043214, -0.018921788327577637, -0.09767397856566964, -0.16913652676725532, -0.040531851552858406, 0.31946771242087935, -0.3897948128784575, -0.13150519809526642, 0.10917036923318647, -0.1778958811220236, -0.07301619081053792, 0.18535996012662243, -0.1759755523284761, -0.06957558485702044, 0.03781900827477618, 0.07134438996634833, -0.06746372829259532, -0.3357307898198686, 0.41349157996521124, -0.04081951656446951, 0.23092076445861562, -0.01107622360492625, 0.12852645406454075, -0.022433804791057256, 0.014298161787049072, 0.03849399209635832, -0.15946382511972887, 0.08401955872001808, 0.3661742791896913, 0.11510611786052766, 0.23116244598314528, -0.3439034841863847, -0.12472352539984191, 0.28092163040234547, 0.1762949927005826, -0.02117593215335524, 0.004915177169051476, -0.1918394824989685, 0.15384878959824763, -0.24245451240823035, -0.21189720449378577, -0.07720147845585172, 0.08761678622444956, 0.005617802213059693, -0.31466733337175556, -0.058096434125994766, 0.12983536674845508, 0.1573431078662596, 0.016852870140588137, -0.09945435124653869, -0.058945494363220725, -0.026811433876523884, -0.11070093747069377, 0.13760572945608235, 0.062225188174080556, -0.09381363662981951, -0.08633385237488078, 0.43952837513714305, -0.10071933787264975, -0.2435467941516147, 0.05302427118507827, -0.16448382794766164, -0.11024526581622479, 0.10678485703722733, 0.07085609120294088, 0.133703719143097, -0.018387851668748914, 0.2202256519985229, -0.2082991903965793, 0.031705040064435905, 0.04146851924043603, -0.00449287676161564, 0.1107847165407204, 0.1062949922151591, 0.052123127777765434, 0.14917273234246617, -0.002695783529794071, 0.03141973376637552, -0.44490930347180946, -0.232515915319687, -0.16389135992517923, 0.23987269740006545, -0.10387060578299187, -0.20768686168168377, 0.41586759565822234, 0.09157637295472186, 0.1684631910402237, 0.046654328252416014, 0.19639953721042086, 0.05462549983171701, -0.004805927971241678, 0.11439268475699398, 0.06461412063586844, 0.21659128699542546, -0.11668228244454396, -0.17861760069229982, -0.007080490303384822, 0.22150587592637394] |
712.2893 | Extended Thermodynamics for dense gases and macromolecular fluids,
obtained through a non relativistic limit | In this paper we consider the 14 moments model of Extended Thermodynamics for
dense gases and macromolecular fluids. Solutions of the restrictions imposed by
the entropy principle and that of Galilean relativity for such a model have
been until now obtained in literature only in an approximate manner up to a
certain order with respect to thermodynamic equilibrium; for more restrictive
models they have been obtained up to whatever order, but by using Taylor
expansions around equilibrium and without proving convergence. Here we have
found an exact solution without using expansions. The idea has been to write
firstly a relativistic model, for which it is easy to impose the Einsteinian
relativity principle, and then taking its non relativistic limit.
| math-ph math.MP | in this paper we consider the 14 moments model of extended thermodynamics for dense gases and macromolecular fluids solutions of the restrictions imposed by the entropy principle and that of galilean relativity for such a model have been until now obtained in literature only in an approximate manner up to a certain order with respect to thermodynamic equilibrium for more restrictive models they have been obtained up to whatever order but by using taylor expansions around equilibrium and without proving convergence here we have found an exact solution without using expansions the idea has been to write firstly a relativistic model for which it is easy to impose the einsteinian relativity principle and then taking its non relativistic limit | [['in', 'this', 'paper', 'we', 'consider', 'the', '14', 'moments', 'model', 'of', 'extended', 'thermodynamics', 'for', 'dense', 'gases', 'and', 'macromolecular', 'fluids', 'solutions', 'of', 'the', 'restrictions', 'imposed', 'by', 'the', 'entropy', 'principle', 'and', 'that', 'of', 'galilean', 'relativity', 'for', 'such', 'a', 'model', 'have', 'been', 'until', 'now', 'obtained', 'in', 'literature', 'only', 'in', 'an', 'approximate', 'manner', 'up', 'to', 'a', 'certain', 'order', 'with', 'respect', 'to', 'thermodynamic', 'equilibrium', 'for', 'more', 'restrictive', 'models', 'they', 'have', 'been', 'obtained', 'up', 'to', 'whatever', 'order', 'but', 'by', 'using', 'taylor', 'expansions', 'around', 'equilibrium', 'and', 'without', 'proving', 'convergence', 'here', 'we', 'have', 'found', 'an', 'exact', 'solution', 'without', 'using', 'expansions', 'the', 'idea', 'has', 'been', 'to', 'write', 'firstly', 'a', 'relativistic', 'model', 'for', 'which', 'it', 'is', 'easy', 'to', 'impose', 'the', 'einsteinian', 'relativity', 'principle', 'and', 'then', 'taking', 'its', 'non', 'relativistic', 'limit']] | [-0.06700521434496838, 0.08064431940746385, -0.13283966247289747, 0.06185224840120107, -0.060065352905760795, -0.13133726102307813, 0.05216763385458059, 0.3503530804770255, -0.242762388504979, -0.32043651704913195, 0.14124916060416795, -0.2501531881886777, -0.08274007209052309, 0.1598072020638296, -0.020027293005817327, 0.10389405168434449, 0.009304923623675057, 0.05853492417568419, -0.08881072123523238, -0.24184112131650395, 0.29770014340355366, 0.0770929277460717, 0.2224173465911925, 0.029753273419503654, 0.1305786224880389, -0.061726432587137496, 0.023137456321445128, 0.07514167593072067, -0.15057119420181006, 0.09564033807294459, 0.21125547049172488, 0.08191050277404613, 0.26084502761353967, -0.47400276420810145, -0.23829237362682945, 0.11088593651642319, 0.14376862242645702, 0.17159742612622583, -0.03582677047392999, -0.26016681806473924, 0.10588087179275434, -0.22631354241420618, -0.17848682146863776, -0.16057818962120207, 0.020473447162657976, -0.0032483715243136683, -0.24957704872769468, 0.055976690145350304, 0.10409855393755461, 0.05429811569071617, -0.06260912020068553, -0.06129305678451074, 0.01006206005670819, 0.07976822029924442, 0.09646202764129501, 0.019766898829677776, 0.055627773958062676, -0.11942024996255704, -0.07853083257336452, 0.44288666866437976, -0.04797357036888662, -0.23790995914395116, 0.19723445035814613, -0.15124183222494958, -0.1685143089031472, 0.1041760312460809, 0.13342048285309882, 0.13562717305167632, -0.21105837493062707, 0.13221730903659737, -0.026346243051185953, 0.11096429969712372, 0.1213561944710482, -0.008292579980363616, 0.20205981966045475, 0.08886716174384375, 0.050432116272585356, 0.11496064402632603, -0.014297587476169863, -0.14579768738310253, -0.27629202413333565, -0.14176071208839094, -0.15957509803765713, 0.060160439269726765, -0.07016132354781329, -0.13999776278442444, 0.30493742809826585, 0.17422217815457022, 0.12377992493076985, 0.08577312069980256, 0.2575467199188884, 0.16044498366468093, 0.053857100681409614, 0.09553423127308175, 0.30689974344421583, 0.14575116604981364, 0.10938172975453321, -0.14418267711073535, 0.05405294746082245, 0.09468518276581493] |
712.2894 | A D-dimensional Heckmann-like solution of Jordan-Brans-Dicke theory | In this short letter we present a some rigorous vacuum solutions of the
D-dimensional Jordan-Brans-Dicke field equations. In contrast with the well
known Brans-Dicke solutions, to the search of static and spherically symmetric
space-time we choose the widespread Hilbert coordinates.
| gr-qc | in this short letter we present a some rigorous vacuum solutions of the ddimensional jordanbransdicke field equations in contrast with the well known bransdicke solutions to the search of static and spherically symmetric spacetime we choose the widespread hilbert coordinates | [['in', 'this', 'short', 'letter', 'we', 'present', 'a', 'some', 'rigorous', 'vacuum', 'solutions', 'of', 'the', 'ddimensional', 'jordanbransdicke', 'field', 'equations', 'in', 'contrast', 'with', 'the', 'well', 'known', 'bransdicke', 'solutions', 'to', 'the', 'search', 'of', 'static', 'and', 'spherically', 'symmetric', 'spacetime', 'we', 'choose', 'the', 'widespread', 'hilbert', 'coordinates']] | [-0.1782050750218332, 0.05948899141512811, -0.05676169163780287, 0.0737545652402332, -0.11183411478996277, -0.11237936789402739, -0.028219681495102122, 0.3170784139889292, -0.17869945385027677, -0.22914007874205708, 0.09489119225763716, -0.23945390600711108, -0.17017068288987502, 0.05274272718816064, -0.07712479934561997, 0.07090904822107405, -0.04239722636411898, 0.07034072116948664, -0.11451343938242645, -0.23657347373664378, 0.382850890699774, 0.04245045215357095, 0.24679799808654934, -0.042273390525951984, 0.10737107668537646, -0.0034300940576940777, -0.0289230763213709, 0.05432352123316377, -0.2235050296410918, 0.06865552803501487, 0.24406881529139354, 0.12761129722930492, 0.23394328880822285, -0.4464679041877389, -0.1922264388995245, 0.14283032932144124, 0.17159289043629541, 0.21570351221598685, -0.12806535109411926, -0.32188254725188015, 0.007294575066771359, -0.1652892479673028, -0.21531908377073705, -0.06259906098712235, 0.028292575923842378, 0.01809832504950464, -0.23235528767108918, 0.07241127286106348, 0.02492902195372153, -0.010340477293357252, -0.17490336128976197, -0.04780479901237413, 0.08381799319176934, 0.01673546773381531, 0.10758133144699969, 0.054165051155723634, 0.048549157683737576, -0.11474785564350895, -0.10570742236450315, 0.4172813704237342, -0.1186448916545487, -0.2890430692466907, 0.18180327811278402, -0.18713647639378905, -0.09259704968426377, 0.055312876735115424, 0.14580049610231072, 0.27242414047941566, -0.16493637489620597, 0.2088451546485885, -0.057893777987919746, 0.16305654426978436, 0.1301178192254156, 0.06471781119471416, 0.1998418377013877, 0.08619067928229925, 0.00137626223731786, 0.1638100155396387, -0.012066606525331735, -0.20456037893891335, -0.38953242301940916, -0.16558555208612233, -0.13249825811944901, 0.11360511220409535, -0.15705140888421737, -0.24491754884365946, 0.37707533618668093, 0.15066420468501746, 0.09784647831693291, 0.04714440801180899, 0.24707747919019313, 0.08999703931622208, -0.0063266016775742175, 0.12248219586908818, 0.29228761013728216, 0.11839895204175263, 0.17230475824326277, -0.15292040212079883, -0.09428669111803174, 0.07815419215476141] |
712.2895 | Electroweak and QCD corrections to Higgs-boson production in
vector-boson fusion at the LHC | Radiative corrections of strong and electroweak interactions are presented at
next-to-leading order for Higgs-boson production in the weak-boson-fusion
channel at the LHC. The calculation includes all weak-boson fusion and
quark-antiquark annihilation diagrams as well as all related interferences. The
electroweak corrections, which also include real corrections from incoming
photons and leading heavy-Higgs-boson effects at two-loop order, are of the
same size as the QCD corrections, viz. typically at the level of 5-10% for a
Higgs-boson mass up to \sim 700 GeV. In general, they do not simply rescale
differential distributions, but induce distortions at the level of 10%. The
discussed corrections have been implemented in a flexible Monte Carlo event
generator.
| hep-ph | radiative corrections of strong and electroweak interactions are presented at nexttoleading order for higgsboson production in the weakbosonfusion channel at the lhc the calculation includes all weakboson fusion and quarkantiquark annihilation diagrams as well as all related interferences the electroweak corrections which also include real corrections from incoming photons and leading heavyhiggsboson effects at twoloop order are of the same size as the qcd corrections viz typically at the level of 510 for a higgsboson mass up to sim 700 gev in general they do not simply rescale differential distributions but induce distortions at the level of 10 the discussed corrections have been implemented in a flexible monte carlo event generator | [['radiative', 'corrections', 'of', 'strong', 'and', 'electroweak', 'interactions', 'are', 'presented', 'at', 'nexttoleading', 'order', 'for', 'higgsboson', 'production', 'in', 'the', 'weakbosonfusion', 'channel', 'at', 'the', 'lhc', 'the', 'calculation', 'includes', 'all', 'weakboson', 'fusion', 'and', 'quarkantiquark', 'annihilation', 'diagrams', 'as', 'well', 'as', 'all', 'related', 'interferences', 'the', 'electroweak', 'corrections', 'which', 'also', 'include', 'real', 'corrections', 'from', 'incoming', 'photons', 'and', 'leading', 'heavyhiggsboson', 'effects', 'at', 'twoloop', 'order', 'are', 'of', 'the', 'same', 'size', 'as', 'the', 'qcd', 'corrections', 'viz', 'typically', 'at', 'the', 'level', 'of', '510', 'for', 'a', 'higgsboson', 'mass', 'up', 'to', 'sim', '700', 'gev', 'in', 'general', 'they', 'do', 'not', 'simply', 'rescale', 'differential', 'distributions', 'but', 'induce', 'distortions', 'at', 'the', 'level', 'of', '10', 'the', 'discussed', 'corrections', 'have', 'been', 'implemented', 'in', 'a', 'flexible', 'monte', 'carlo', 'event', 'generator']] | [-0.04154904342155803, 0.22013984717479027, -0.04194038876842053, 0.20025771431759135, -0.01237654761906277, -0.0994745451403228, -0.0038895461003522615, 0.3476168474199267, -0.19281803181411716, -0.31968546487592364, 0.037325357822155965, -0.3679365041489537, 0.03422258030791003, 0.16593496096299473, 0.0914519850483483, 0.08241463108575559, 0.058217674630131944, 0.03082334334534165, -0.06495077378008524, -0.25035685079795233, 0.2913121700702185, 0.09616779588867684, 0.17193936528050685, 0.17315265766202328, 0.07865582850786883, 0.019784315099083894, -0.07144824600189102, -0.0708688584802387, -0.10259363703589114, -0.007057356018875097, 0.2272443622822647, -0.031042167052693734, 0.14010177679393473, -0.3459198836002264, -0.13502633744045286, 0.08550516834801382, 0.18166313416047677, 0.1588536693422472, -0.026800238598675072, -0.26976829070203545, 0.1088674165694429, -0.2647199521621538, -0.07938193046982896, -0.08058123856044568, -0.03696144025076416, -0.04201567214955618, -0.3290522487751242, 0.06096991407658762, -0.048286785464943596, 0.013358761382347963, 0.05664130993741187, -0.16937449275671193, -0.09789700926751368, 0.09568889371773882, 0.05912158470957431, 0.044808772609145425, 0.18262113984422507, -0.17911622918269657, -0.19091474389875526, 0.44704650137741286, -0.04524677599411089, -0.14153475709981075, 0.1387888271417175, -0.20764766808028692, -0.1643173331520646, 0.23403816452661008, 0.2469821807211013, 0.09752215991616836, -0.17417520172642292, 0.14021117380990117, 0.12295071042335785, 0.11985696894787923, 0.09548578353028174, 0.09158614037300435, 0.1951394408001556, 0.12677340613896246, -0.031047703618569684, 0.06074155660541225, -0.07786775125308079, -0.10791576438927436, -0.459013299261396, -0.06343433096887427, -0.05430785112863255, 0.010117902986805987, -0.09209925481204786, -0.14170964343288728, 0.33865928655356037, 0.15637554463863307, 0.22821301505518113, 0.05381490630915741, 0.3383897614564646, 0.1355228992902699, 0.16467603354773544, 0.06451142579317093, 0.30591205083807044, 0.1262425397048696, 0.1022476585590289, -0.22588079428375774, 0.032996968393474144, 0.06037532048811717] |
712.2896 | Dynamics Of Proton Spin : Role Of $qqq$ Force | The analytic structure of the $qqq$ wave function, obtained recently in the
high momentum regime of QCD, is employed for the formulation of baryonic
transition amplitudes via quark loops. A new aspect of this study is the role
of a direct ($Y$-shaped, Mercedes-Benz type) $qqq$ force in generating the
$qqq$ wave function. The dynamics is that of a Salpeter-like equation (3D
support for the kernel) formulated covariantly on the light front, a la
Markov-Yukawa Transversality Principle (MYTP) which warrants a 2-way
interconnection between the 3D and 4D Bethe-Salpeter (BSE) forms for 2 as well
as 3 fermion quarks. The dynamics of this 3-body force shows up through a
characteristic singularity in the hypergeometric differential equation for the
3D wave function $\phi$, corresponding to a $negative$ eigenvalue of the spin
operator $i \sigma_1.\sigma_2\times \sigma_3$ which is an integral part of the
$qqq$ force. As a first application of this wave function to the problem of the
proton spin anomaly, the two-gluon contribution to the anomaly yields an
estimate of the right sign, although somewhat smaller in magnitude.
Keywords: 3bodyforce; proton-spin; 2gluon anomaly; fractional correction
$\theta$
| hep-ph | the analytic structure of the qqq wave function obtained recently in the high momentum regime of qcd is employed for the formulation of baryonic transition amplitudes via quark loops a new aspect of this study is the role of a direct yshaped mercedesbenz type qqq force in generating the qqq wave function the dynamics is that of a salpeterlike equation 3d support for the kernel formulated covariantly on the light front a la markovyukawa transversality principle mytp which warrants a 2way interconnection between the 3d and 4d bethesalpeter bse forms for 2 as well as 3 fermion quarks the dynamics of this 3body force shows up through a characteristic singularity in the hypergeometric differential equation for the 3d wave function phi corresponding to a negative eigenvalue of the spin operator i sigma_1sigma_2times sigma_3 which is an integral part of the qqq force as a first application of this wave function to the problem of the proton spin anomaly the twogluon contribution to the anomaly yields an estimate of the right sign although somewhat smaller in magnitude keywords 3bodyforce protonspin 2gluon anomaly fractional correction theta | [['the', 'analytic', 'structure', 'of', 'the', 'qqq', 'wave', 'function', 'obtained', 'recently', 'in', 'the', 'high', 'momentum', 'regime', 'of', 'qcd', 'is', 'employed', 'for', 'the', 'formulation', 'of', 'baryonic', 'transition', 'amplitudes', 'via', 'quark', 'loops', 'a', 'new', 'aspect', 'of', 'this', 'study', 'is', 'the', 'role', 'of', 'a', 'direct', 'yshaped', 'mercedesbenz', 'type', 'qqq', 'force', 'in', 'generating', 'the', 'qqq', 'wave', 'function', 'the', 'dynamics', 'is', 'that', 'of', 'a', 'salpeterlike', 'equation', '3d', 'support', 'for', 'the', 'kernel', 'formulated', 'covariantly', 'on', 'the', 'light', 'front', 'a', 'la', 'markovyukawa', 'transversality', 'principle', 'mytp', 'which', 'warrants', 'a', '2way', 'interconnection', 'between', 'the', '3d', 'and', '4d', 'bethesalpeter', 'bse', 'forms', 'for', 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712.2897 | Origins of anomalous electronic structures of epitaxial graphene on
silicon carbide | On the basis of first-principles calculations, we report that a novel
interfacial atomic structure occurs between graphene and the surface of silicon
carbide, destroying the Dirac point of graphene and opening a substantial
energy gap there. In the calculated atomic structures, a quasi-periodic
$6\times 6$ domain pattern emerges out of a larger commensurate
$6\sqrt{3}\times6\sqrt{3}R30^\circ$ periodic interfacial reconstruction,
resolving a long standing experimental controversy on the periodicity of the
interfacial superstructures. Our theoretical energy spectrum shows a gap and
midgap states at the Dirac point of graphene, which are in excellent agreement
with the recently-observed anomalous angle-resolved photoemission spectra.
Beyond solving unexplained issues of epitaxial graphene, our atomistic study
may provide a way to engineer the energy gaps of graphene on substrates.
| cond-mat.mtrl-sci cond-mat.mes-hall | on the basis of firstprinciples calculations we report that a novel interfacial atomic structure occurs between graphene and the surface of silicon carbide destroying the dirac point of graphene and opening a substantial energy gap there in the calculated atomic structures a quasiperiodic 6times 6 domain pattern emerges out of a larger commensurate 6sqrt3times6sqrt3r30circ periodic interfacial reconstruction resolving a long standing experimental controversy on the periodicity of the interfacial superstructures our theoretical energy spectrum shows a gap and midgap states at the dirac point of graphene which are in excellent agreement with the recentlyobserved anomalous angleresolved photoemission spectra beyond solving unexplained issues of epitaxial graphene our atomistic study may provide a way to engineer the energy gaps of graphene on substrates | [['on', 'the', 'basis', 'of', 'firstprinciples', 'calculations', 'we', 'report', 'that', 'a', 'novel', 'interfacial', 'atomic', 'structure', 'occurs', 'between', 'graphene', 'and', 'the', 'surface', 'of', 'silicon', 'carbide', 'destroying', 'the', 'dirac', 'point', 'of', 'graphene', 'and', 'opening', 'a', 'substantial', 'energy', 'gap', 'there', 'in', 'the', 'calculated', 'atomic', 'structures', 'a', 'quasiperiodic', '6times', '6', 'domain', 'pattern', 'emerges', 'out', 'of', 'a', 'larger', 'commensurate', '6sqrt3times6sqrt3r30circ', 'periodic', 'interfacial', 'reconstruction', 'resolving', 'a', 'long', 'standing', 'experimental', 'controversy', 'on', 'the', 'periodicity', 'of', 'the', 'interfacial', 'superstructures', 'our', 'theoretical', 'energy', 'spectrum', 'shows', 'a', 'gap', 'and', 'midgap', 'states', 'at', 'the', 'dirac', 'point', 'of', 'graphene', 'which', 'are', 'in', 'excellent', 'agreement', 'with', 'the', 'recentlyobserved', 'anomalous', 'angleresolved', 'photoemission', 'spectra', 'beyond', 'solving', 'unexplained', 'issues', 'of', 'epitaxial', 'graphene', 'our', 'atomistic', 'study', 'may', 'provide', 'a', 'way', 'to', 'engineer', 'the', 'energy', 'gaps', 'of', 'graphene', 'on', 'substrates']] | [-0.2061624892463923, 0.14705748454482903, -0.08459414389611737, 0.037322638610239364, -0.012080976453779096, -0.11314352006412857, 0.13931473767700459, 0.423940995253992, -0.2758102248584436, -0.32465586814382846, -0.030017318771690255, -0.32501217104063546, -0.1425631850080426, 0.17489956366090673, 0.05534601463235853, 0.06598187949169766, 0.06611579245010252, -0.14840963375653632, -0.13936279250370445, -0.1236471653192435, 0.27210024751199424, 0.08310951160128452, 0.3145405831746757, 0.15623005674305288, 0.03791052524446825, -0.04666356790295132, 0.06701458584178578, -0.018547488007047946, -0.1911727836039153, 0.14577666882662227, 0.24918746494703486, -0.14999284753421985, 0.21935383181764997, -0.5039269454654091, -0.24265000767898093, -0.039693139801340656, 0.13182783347346688, 0.1597020922080529, -0.11797079312314918, -0.25201830176313306, 0.07457474460979262, -0.09658013256112775, -0.13536616347822522, -0.042380744876139916, -0.02038077933498281, -0.053805556719784035, -0.16331501956884786, 0.10024984391725598, 0.020640489756907066, 0.09391905731575184, -0.1330045662389314, -0.13674140467947302, -0.10623557676276392, 0.044382095271490576, 0.029105529600411868, 0.036983033094732165, 0.1558401300879734, -0.0970061021483665, -0.1424253660243116, 0.3934032773706785, -0.037859934280156965, -0.08751985041832566, 0.174142431969993, -0.19181739992254282, -0.056519915342084635, 0.15966924398460172, 0.06516417315275955, 0.05516805440526117, -0.09939211809455441, 0.1068492334952755, -0.0728349278958549, 0.22032047892499268, 0.12157037378912253, 0.08941585860692093, 0.28477672621423056, 0.24527693230539468, 0.06397544191611454, 0.08744597957904397, -0.12760667056076166, -0.02077762713879039, -0.2364051160671987, -0.1655367050581604, -0.23485748597020514, 0.10407630363402288, -0.06517595274353204, -0.2509203057443677, 0.45279775952443113, 0.11331140324915952, 0.19214464402334255, -0.06692673393990844, 0.21942976689782023, 0.07278343174252505, 0.060160172245011106, -0.00564742884560188, 0.25067521992124125, 0.13547810826504464, 0.09748736382962382, -0.2734172903742133, 0.02818943496527966, -0.03729332266144516] |
712.2898 | A study of supervised classification of Hipparcos variable stars using
PCA and Support Vector Machines | We report on the automated classification of Hipparcos variable stars by a
supervised classification algorithm known as Support Vector Machines. The
dataset comprised about 3200 stars, each characterized by 51 features. These
are the B-V and V-I colours, the skewness of the lightcurve, the median
subtracted 10-percentiles and forty bins from the Fourier envelope of the
lightcurve. We also tested whether the classification performance can be
improved by using the most significant principal components calculated from
this dataset. We show that the overall classification performance (as measured
by the fraction of true positives) on the original dataset is of the order of
62%. For about 9 of the 18 different variability classes, the classification
accuracy is significantly larger than 60% (up to 98%). Introducing principal
components does not significantly improve this result. We further find that
many of the different variability classes are not very distinct and possibly
poorly defined, i.e. there exists a considerable class overlap. It is concluded
that this `contamination' of the template set implies minimum errors and thus
degrades the overall performance.
| astro-ph | we report on the automated classification of hipparcos variable stars by a supervised classification algorithm known as support vector machines the dataset comprised about 3200 stars each characterized by 51 features these are the bv and vi colours the skewness of the lightcurve the median subtracted 10percentiles and forty bins from the fourier envelope of the lightcurve we also tested whether the classification performance can be improved by using the most significant principal components calculated from this dataset we show that the overall classification performance as measured by the fraction of true positives on the original dataset is of the order of 62 for about 9 of the 18 different variability classes the classification accuracy is significantly larger than 60 up to 98 introducing principal components does not significantly improve this result we further find that many of the different variability classes are not very distinct and possibly poorly defined ie there exists a considerable class overlap it is concluded that this contamination of the template set implies minimum errors and thus degrades the overall performance | [['we', 'report', 'on', 'the', 'automated', 'classification', 'of', 'hipparcos', 'variable', 'stars', 'by', 'a', 'supervised', 'classification', 'algorithm', 'known', 'as', 'support', 'vector', 'machines', 'the', 'dataset', 'comprised', 'about', '3200', 'stars', 'each', 'characterized', 'by', '51', 'features', 'these', 'are', 'the', 'bv', 'and', 'vi', 'colours', 'the', 'skewness', 'of', 'the', 'lightcurve', 'the', 'median', 'subtracted', '10percentiles', 'and', 'forty', 'bins', 'from', 'the', 'fourier', 'envelope', 'of', 'the', 'lightcurve', 'we', 'also', 'tested', 'whether', 'the', 'classification', 'performance', 'can', 'be', 'improved', 'by', 'using', 'the', 'most', 'significant', 'principal', 'components', 'calculated', 'from', 'this', 'dataset', 'we', 'show', 'that', 'the', 'overall', 'classification', 'performance', 'as', 'measured', 'by', 'the', 'fraction', 'of', 'true', 'positives', 'on', 'the', 'original', 'dataset', 'is', 'of', 'the', 'order', 'of', '62', 'for', 'about', '9', 'of', 'the', '18', 'different', 'variability', 'classes', 'the', 'classification', 'accuracy', 'is', 'significantly', 'larger', 'than', '60', 'up', 'to', '98', 'introducing', 'principal', 'components', 'does', 'not', 'significantly', 'improve', 'this', 'result', 'we', 'further', 'find', 'that', 'many', 'of', 'the', 'different', 'variability', 'classes', 'are', 'not', 'very', 'distinct', 'and', 'possibly', 'poorly', 'defined', 'ie', 'there', 'exists', 'a', 'considerable', 'class', 'overlap', 'it', 'is', 'concluded', 'that', 'this', 'contamination', 'of', 'the', 'template', 'set', 'implies', 'minimum', 'errors', 'and', 'thus', 'degrades', 'the', 'overall', 'performance']] | [-0.06171451399102807, 0.07287883847153613, -0.05490166185423732, 0.0653347093532128, -0.0639083145558834, -0.09868478117244585, 0.08354929757836674, 0.3969371819536069, -0.2187904523851882, -0.38815409784338306, 0.10584251811594836, -0.292510295818959, -0.09620540102677685, 0.21691069240016597, -0.12420796865846828, 0.03199700852922563, 0.1282494778319129, 0.030052547218011958, -0.08574051183382315, -0.3260885970028383, 0.2963582620024681, 0.01599313802484955, 0.2759074077302856, 0.0006836902639146761, 0.0717679759647165, -0.03860476340566363, -0.08806785680087549, 0.03755953418490078, -0.05830049853268845, 0.10395281633761312, 0.22330683615590846, 0.16754686281617198, 0.24704374677900756, -0.27683342861942944, -0.19446832697838545, 0.1256712633324787, 0.16581789602658578, 0.05597733654614006, 0.0023167145371969255, -0.2678321034228429, 0.11969643163361719, -0.15315756698139013, -0.07527948005124926, -0.061288040972181726, 0.04094669599352138, 0.0012609531727087284, -0.20987474218543087, 0.10458426715257312, 0.08686830622277089, 0.10507338544619935, -0.08134932120596725, -0.1862198465503752, -0.04688987441493996, 0.12067338286366845, 0.035156109890501414, 0.07005298611042755, 0.10659235771213259, -0.1360878035233223, -0.08267725041003099, 0.3887507932207414, -0.08753853527937151, -0.13447149445036694, 0.19912251033953257, -0.12454789675373051, -0.1407804019103891, 0.17142090222532197, 0.16441066265638385, 0.09910177840186017, -0.16315489425190857, -0.02637746937173818, -0.03293909506340112, 0.2386945615056902, 0.06460104495885649, 0.020724318747130124, 0.18528090038868997, 0.1582907636945934, 0.014191582678135351, 0.12028054564526039, -0.17411375704886659, 0.007202853507894491, -0.2580400485246043, -0.10228963484854571, -0.16237482378525395, 0.03389339706211883, -0.12898011090998937, -0.12798121688355293, 0.4347500255437834, 0.15942268274059254, 0.2139155176175492, 0.08937689950224012, 0.28650626789711947, 0.07744064845153065, 0.11096082216981033, 0.1234238580082144, 0.28748159875561086, 0.07023583606816829, 0.03669608386433018, -0.2038534585745739, 0.09278935819864273, 0.0021917456282036646] |
712.2899 | Fusion of necklace-ring patterns into vortex and fundamental solitons in
dissipative media | We demonstrate that necklace-shaped arrays of localized spatial beams can
merge into stable fundamental or vortex solitons in a generic model of laser
cavities, based on the two-dimensional complex Ginzburg-Landau equation with
the cubic-quintic nonlinearity. The outcome of the fusion is controlled by the
number of beads in the initial necklace, 2N, and its topological charge, M. We
predict and confirm by systematic simulations that the vorticity of the
emerging soliton is the absolute value of difference of N and M. Threshold
characteristics of the fusion are found and explained too. If the initial
radius of the array (R0) is too large, it simply keeps the necklace shape (if
R0 is somewhat smaller, the necklace features a partial fusion), while, if R0
is too small, the array disappears.
| nlin.PS | we demonstrate that necklaceshaped arrays of localized spatial beams can merge into stable fundamental or vortex solitons in a generic model of laser cavities based on the twodimensional complex ginzburglandau equation with the cubicquintic nonlinearity the outcome of the fusion is controlled by the number of beads in the initial necklace 2n and its topological charge m we predict and confirm by systematic simulations that the vorticity of the emerging soliton is the absolute value of difference of n and m threshold characteristics of the fusion are found and explained too if the initial radius of the array r0 is too large it simply keeps the necklace shape if r0 is somewhat smaller the necklace features a partial fusion while if r0 is too small the array disappears | [['we', 'demonstrate', 'that', 'necklaceshaped', 'arrays', 'of', 'localized', 'spatial', 'beams', 'can', 'merge', 'into', 'stable', 'fundamental', 'or', 'vortex', 'solitons', 'in', 'a', 'generic', 'model', 'of', 'laser', 'cavities', 'based', 'on', 'the', 'twodimensional', 'complex', 'ginzburglandau', 'equation', 'with', 'the', 'cubicquintic', 'nonlinearity', 'the', 'outcome', 'of', 'the', 'fusion', 'is', 'controlled', 'by', 'the', 'number', 'of', 'beads', 'in', 'the', 'initial', 'necklace', '2n', 'and', 'its', 'topological', 'charge', 'm', 'we', 'predict', 'and', 'confirm', 'by', 'systematic', 'simulations', 'that', 'the', 'vorticity', 'of', 'the', 'emerging', 'soliton', 'is', 'the', 'absolute', 'value', 'of', 'difference', 'of', 'n', 'and', 'm', 'threshold', 'characteristics', 'of', 'the', 'fusion', 'are', 'found', 'and', 'explained', 'too', 'if', 'the', 'initial', 'radius', 'of', 'the', 'array', 'r0', 'is', 'too', 'large', 'it', 'simply', 'keeps', 'the', 'necklace', 'shape', 'if', 'r0', 'is', 'somewhat', 'smaller', 'the', 'necklace', 'features', 'a', 'partial', 'fusion', 'while', 'if', 'r0', 'is', 'too', 'small', 'the', 'array', 'disappears']] | [-0.18665877269086195, 0.18545225400885101, -0.07924625449231826, 0.060289811172879126, -0.03724445329862647, -0.1662603010518069, -0.0015082885693118442, 0.3677462191408267, -0.24396078266727272, -0.2516793878894532, 0.09881696641059534, -0.2576088692221674, -0.11745287536541582, 0.15143118269224942, -0.01001567073399201, 0.014884558156609273, 0.07853033118226449, 0.06319664958573412, -0.0231673641501402, -0.20553873300559644, 0.3365431284692022, 0.00829290095862234, 0.27071400790737243, 0.04444036816130392, 0.08392340557475109, -0.013648697702592472, 0.013337849894014653, 0.048520651949729654, -0.13322560352810342, 0.0778790166878025, 0.18580357110477053, 0.048087922436934605, 0.24516204909377848, -0.42480510246241465, -0.19013625599109218, 0.09597067497452372, 0.16919926984519407, 0.12153806471724238, -0.025350948978484666, -0.28207829226448666, 0.11955913178269384, -0.12505621407217404, -0.1785816161936964, -0.004851800669712247, 0.09219555332310847, 0.09030750208285099, -0.2568740773931495, 0.08247586787911132, 0.07839400425291387, -0.0016179643862415105, -0.03491086911799357, -0.09381792703152314, -0.09449359096834087, 0.049534260900145455, 0.019407552074881096, 0.017994161513342988, 0.12002711415698286, -0.15172506531962426, -0.020582208977430128, 0.3855608082667459, -0.037041238236270146, -0.18684711416790378, 0.1526570434398309, -0.17915177629765822, -0.026644806817785138, 0.1756942724750843, 0.10632013142458163, 0.11002676626958419, -0.037387316254807956, 0.0745162544244522, -0.060379779725735716, 0.2202511351715657, 0.1061142672006099, -0.0035699257714441046, 0.23701264837291092, 0.20434670926624676, 0.06793553126044571, 0.12306767869995383, -0.1282607831290079, -0.08709613691462437, -0.2955722353217425, -0.09751882196360384, -0.20057167114282493, 0.04958200944111013, -0.09741702045607781, -0.15683689101206255, 0.35501772499264916, 0.09517731502273818, 0.21407058290947134, -0.0035260111981187947, 0.2670304990024306, 0.10832889997254824, 0.07570287986527546, 0.03539936595552717, 0.22752566191229562, 0.14634365105666802, 0.06745703726664942, -0.24562876982963644, 0.0042741479810501914, 0.0737488848499197] |
712.29 | Classification of integrable Volterra type lattices on the sphere.
Isotropic case | The symmetry approach is used for classification of integrable isotropic
vector Volterra lattices on the sphere. The list of integrable lattices
consists mainly of new equations. Their symplectic structure and associated PDE
of vector NLS-type are discussed.
| nlin.SI | the symmetry approach is used for classification of integrable isotropic vector volterra lattices on the sphere the list of integrable lattices consists mainly of new equations their symplectic structure and associated pde of vector nlstype are discussed | [['the', 'symmetry', 'approach', 'is', 'used', 'for', 'classification', 'of', 'integrable', 'isotropic', 'vector', 'volterra', 'lattices', 'on', 'the', 'sphere', 'the', 'list', 'of', 'integrable', 'lattices', 'consists', 'mainly', 'of', 'new', 'equations', 'their', 'symplectic', 'structure', 'and', 'associated', 'pde', 'of', 'vector', 'nlstype', 'are', 'discussed']] | [-0.18955136785233342, 0.10392584510751672, 0.018937946372740978, 0.07925766220983319, -0.15989711744761145, -0.16011840296355453, -0.08742435534509856, 0.3889292402041925, -0.29774096215496193, -0.1394523720483522, 0.15126078948378563, -0.28014415892696864, -0.17557763887216915, 0.18410885480005998, -0.00883959130560224, 0.11751937949274843, 0.057822477173160865, 0.0661086191272212, -0.1448719775606249, -0.323162474188123, 0.4166388245853218, -0.023574032833346643, 0.27680255321634784, -0.04696972812903491, 0.18028993944864016, 0.03419021873206303, -0.07574498905120669, -0.08216743483333974, -0.12259091003923803, 0.16645578232065245, 0.2238390941449718, -0.0005410747174677011, 0.14417798027421372, -0.36349534127559213, -0.1951971503817854, 0.05830901038103007, 0.13084882456255523, 0.06672698828215534, 0.016786257619969547, -0.3390797767410609, 0.04414969858889644, -0.0985416031971171, -0.2145941485524983, -0.11221046826323948, -0.011518977481771159, 0.08312533821004468, -0.16848257473021797, 0.09494040504953749, 0.162167582132325, 0.10846612587369778, -0.15584143113999352, -0.1452196675629632, -0.06553608717749247, 0.0007218894976619127, -0.02680933182253628, 0.01371721675418116, 0.03467333609099827, -0.10586244091894981, -0.13199938239680753, 0.44503188354743495, -0.043829726256631514, -0.3157014968628819, 0.16459230285741994, -0.036806455398028765, -0.13098039074070952, 0.17218053582552317, 0.2353892480904186, 0.06378236658418097, -0.13988159876474104, 0.1741768421237105, -0.07719683209182443, 0.07590739393757807, 0.023269100353826542, -0.00496032803847983, 0.17939603404217475, 0.1676837513034509, 0.05229894461966044, 0.13428362592349988, -0.010529374510263773, -0.18235725818856344, -0.333299783385686, -0.13554591015988104, -0.17662659127617608, 0.08712761343230267, -0.08494459584668416, -0.20330123084823828, 0.40273727023520983, 0.04217982555210993, 0.12211399339139462, 0.022365984280367155, 0.13402052129291603, 0.122559334956915, 0.05230379760315692, -0.004261433549628065, 0.17753473201112166, 0.2560565606565089, 0.060964782055266, -0.200691245609542, -0.10276125063742134, 0.2211421474474608] |
712.2901 | Phase-Separation Transition in Liquid Mixtures Near Charged Objects | We study the thermodynamic behavior of nonpolar liquid mixtures in the
vicinity of curved charged objects, such as electrodes or charged colloids. For
small enough charge on the object, or equivalently, small potential, the
dielectrophoretic force leads to enrichment of the more polar liquid close the
colloid. However, there is a critical value of charge (or potential), above
which a phase-separation transition occurs, and the interface between high- and
low-dielectric constant components becomes sharp. Analytical and numerical
composition profile are given, and the equilibrium front location as a function
of charge or voltage is found. We further employ a simple Cahn-Hilliard type
equation to study the dynamics of phase-separation in spatially nonuniform
electric fields. We find an exponential relaxation of the composition front
location, with a characteristic time depending on the charge, mixture
composition and ambient temperature.
| cond-mat.stat-mech cond-mat.soft | we study the thermodynamic behavior of nonpolar liquid mixtures in the vicinity of curved charged objects such as electrodes or charged colloids for small enough charge on the object or equivalently small potential the dielectrophoretic force leads to enrichment of the more polar liquid close the colloid however there is a critical value of charge or potential above which a phaseseparation transition occurs and the interface between high and lowdielectric constant components becomes sharp analytical and numerical composition profile are given and the equilibrium front location as a function of charge or voltage is found we further employ a simple cahnhilliard type equation to study the dynamics of phaseseparation in spatially nonuniform electric fields we find an exponential relaxation of the composition front location with a characteristic time depending on the charge mixture composition and ambient temperature | [['we', 'study', 'the', 'thermodynamic', 'behavior', 'of', 'nonpolar', 'liquid', 'mixtures', 'in', 'the', 'vicinity', 'of', 'curved', 'charged', 'objects', 'such', 'as', 'electrodes', 'or', 'charged', 'colloids', 'for', 'small', 'enough', 'charge', 'on', 'the', 'object', 'or', 'equivalently', 'small', 'potential', 'the', 'dielectrophoretic', 'force', 'leads', 'to', 'enrichment', 'of', 'the', 'more', 'polar', 'liquid', 'close', 'the', 'colloid', 'however', 'there', 'is', 'a', 'critical', 'value', 'of', 'charge', 'or', 'potential', 'above', 'which', 'a', 'phaseseparation', 'transition', 'occurs', 'and', 'the', 'interface', 'between', 'high', 'and', 'lowdielectric', 'constant', 'components', 'becomes', 'sharp', 'analytical', 'and', 'numerical', 'composition', 'profile', 'are', 'given', 'and', 'the', 'equilibrium', 'front', 'location', 'as', 'a', 'function', 'of', 'charge', 'or', 'voltage', 'is', 'found', 'we', 'further', 'employ', 'a', 'simple', 'cahnhilliard', 'type', 'equation', 'to', 'study', 'the', 'dynamics', 'of', 'phaseseparation', 'in', 'spatially', 'nonuniform', 'electric', 'fields', 'we', 'find', 'an', 'exponential', 'relaxation', 'of', 'the', 'composition', 'front', 'location', 'with', 'a', 'characteristic', 'time', 'depending', 'on', 'the', 'charge', 'mixture', 'composition', 'and', 'ambient', 'temperature']] | [-0.14436262713517503, 0.18470898592586707, -0.062106242671908035, 0.015179853120743957, -0.019838640806231187, -0.15575434050325604, 0.05774948523417251, 0.36410663720138753, -0.2580505874905273, -0.28384770442099466, 0.04954264326068661, -0.26918345397460636, -0.10828349528575901, 0.11841798257626539, 0.003793623679093201, 0.0014878952005592575, -0.04917528013440434, 0.03211675241018516, -0.09461537081948787, -0.13728565909648247, 0.3166063915467379, 0.039264958786920906, 0.2669305207452526, 0.11634659489028727, 0.07291174470616953, -0.0223827947944022, 0.06894748920683552, 0.05949128929348867, -0.16086485013909582, 0.022789588991729337, 0.19818654221679716, -0.009051998621736565, 0.19903910710700673, -0.4525012926055785, -0.2126441315346717, 0.10303814909896766, 0.11812565556598188, 0.11895123773244257, -0.13101570751829444, -0.23473520076622928, 0.03740024213814245, -0.13146731583911409, -0.19284753612902042, -0.03552129239958786, 0.0409765421594731, 0.08967178245287484, -0.2597756421424612, 0.13784027727742265, 0.0656074380857299, 0.05528521847598472, -0.1289454024033553, -0.10309368780861697, -0.043673840687902525, 0.09913569499154738, 0.04670549535199347, 0.04159836599987381, 0.24330824275032012, -0.17084341326109848, -0.011368437595393535, 0.357676045044604, -0.08836871487543965, -0.18539090009311038, 0.2581095056417976, -0.17344698860024504, -0.014611651045168294, 0.18061991511881487, 0.1667578598232872, 0.1445807066514925, -0.13455942929824338, 0.05711707159881922, 0.0033617125446806207, 0.2008514117218391, 0.10734534131050327, -0.030985776572930116, 0.26915364675087866, 0.18977868210279594, 0.08810122371739393, 0.1622912917204582, -0.11147026950493455, -0.11200495200897873, -0.27594796640213826, -0.18716254635938329, -0.16442591367615728, 0.04364646728538031, -0.12570593313322093, -0.24820244640288672, 0.35338219888780237, 0.08123765214721088, 0.20197241047709963, -0.015811704618373654, 0.2519751534385974, 0.10716714112965023, 0.01083309018991235, 0.04466141291899754, 0.2067487086883209, 0.13504108453652122, 0.1343463387494961, -0.25653302650150916, 0.09616405849283846, 0.05038767356602271] |
712.2902 | Variable VHE gamma-ray emission from non-blazar AGNs | The observation of rapidly variable very high energy (VHE) gamma-rays from
non-aligned active galactic nuclei (AGNs), as reported from M87, proves
challenging for conventional theoretical acceleration and emission models. We
re-examine the centrifugal acceleration of particles by rotating jet
magnetospheres in the vicinity of accreting supermassive black hole systems and
analyze the energy constraints imposed for highly underluminous systems.
Applications are presented for conditions expected to be present in the radio
galaxy M87, assuming accretion onto the central black hole to occur in an
advection-dominated (ADAF) mode. We show that for a highly underluminous source
like M87, centrifugally accelerated electrons may reach Lorentz factors up to
$\gamma \sim (10^7-10^8)$, allowing inverse Compton (Thomson) upscattering of
sub-mm disk photons to the TeV regime. Upscattering of Comptonized disk photons
results in a flat TeV spectrum $L_{\nu} \propto \nu^{-\alpha_c}$ with spectral
index $\alpha_c \simeq 1.2$. The characteristic variability time scale is of
the order $r_{\rm L}/c$, which in the case of M87 corresponds to $\simeq 1.7$ d
for a typical light cylinder radius of $r_{\rm L} \simeq 5 r_{\rm s}$.
Centrifugal acceleration could thus provide a natural explanation for the
challenging VHE emission features in M87. Our results suggest that some
advection-dominated accreting (non-blazar) AGNs could well be observable VHE
emitting sources. (abridged)
| astro-ph | the observation of rapidly variable very high energy vhe gammarays from nonaligned active galactic nuclei agns as reported from m87 proves challenging for conventional theoretical acceleration and emission models we reexamine the centrifugal acceleration of particles by rotating jet magnetospheres in the vicinity of accreting supermassive black hole systems and analyze the energy constraints imposed for highly underluminous systems applications are presented for conditions expected to be present in the radio galaxy m87 assuming accretion onto the central black hole to occur in an advectiondominated adaf mode we show that for a highly underluminous source like m87 centrifugally accelerated electrons may reach lorentz factors up to gamma sim 107108 allowing inverse compton thomson upscattering of submm disk photons to the tev regime upscattering of comptonized disk photons results in a flat tev spectrum l_nu propto nualpha_c with spectral index alpha_c simeq 12 the characteristic variability time scale is of the order r_rm lc which in the case of m87 corresponds to simeq 17 d for a typical light cylinder radius of r_rm l simeq 5 r_rm s centrifugal acceleration could thus provide a natural explanation for the challenging vhe emission features in m87 our results suggest that some advectiondominated accreting nonblazar agns could well be observable vhe emitting sources abridged | [['the', 'observation', 'of', 'rapidly', 'variable', 'very', 'high', 'energy', 'vhe', 'gammarays', 'from', 'nonaligned', 'active', 'galactic', 'nuclei', 'agns', 'as', 'reported', 'from', 'm87', 'proves', 'challenging', 'for', 'conventional', 'theoretical', 'acceleration', 'and', 'emission', 'models', 'we', 'reexamine', 'the', 'centrifugal', 'acceleration', 'of', 'particles', 'by', 'rotating', 'jet', 'magnetospheres', 'in', 'the', 'vicinity', 'of', 'accreting', 'supermassive', 'black', 'hole', 'systems', 'and', 'analyze', 'the', 'energy', 'constraints', 'imposed', 'for', 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712.2903 | An alternative NMSSM phenomenology with manifest perturbative
unification | Can supersymmetric models with a moderate stop mass be made consistent with
the negative Higgs boson searches at LEP, while keeping perturbative
unification manifest? The NMSSM achieves this rather easily, but only if extra
matter multiplets filling complete SU(5) representations are present at
intermediate energies. As a concrete example which makes use of this feature,
we give an analytic description of the phenomenology of a constrained NMSSM
close to a Peccei-Quinn symmetry point. The related pseudo-Goldstone boson
appears in decays of the Higgs bosons and possibly of the lightest neutralino,
and itself decays into (b anti-b) and (tau anti-tau).
| hep-ph | can supersymmetric models with a moderate stop mass be made consistent with the negative higgs boson searches at lep while keeping perturbative unification manifest the nmssm achieves this rather easily but only if extra matter multiplets filling complete su5 representations are present at intermediate energies as a concrete example which makes use of this feature we give an analytic description of the phenomenology of a constrained nmssm close to a pecceiquinn symmetry point the related pseudogoldstone boson appears in decays of the higgs bosons and possibly of the lightest neutralino and itself decays into b antib and tau antitau | [['can', 'supersymmetric', 'models', 'with', 'a', 'moderate', 'stop', 'mass', 'be', 'made', 'consistent', 'with', 'the', 'negative', 'higgs', 'boson', 'searches', 'at', 'lep', 'while', 'keeping', 'perturbative', 'unification', 'manifest', 'the', 'nmssm', 'achieves', 'this', 'rather', 'easily', 'but', 'only', 'if', 'extra', 'matter', 'multiplets', 'filling', 'complete', 'su5', 'representations', 'are', 'present', 'at', 'intermediate', 'energies', 'as', 'a', 'concrete', 'example', 'which', 'makes', 'use', 'of', 'this', 'feature', 'we', 'give', 'an', 'analytic', 'description', 'of', 'the', 'phenomenology', 'of', 'a', 'constrained', 'nmssm', 'close', 'to', 'a', 'pecceiquinn', 'symmetry', 'point', 'the', 'related', 'pseudogoldstone', 'boson', 'appears', 'in', 'decays', 'of', 'the', 'higgs', 'bosons', 'and', 'possibly', 'of', 'the', 'lightest', 'neutralino', 'and', 'itself', 'decays', 'into', 'b', 'antib', 'and', 'tau', 'antitau']] | [-0.09573732406568873, 0.2819618920884107, -0.061800800939443325, 0.20026317104048125, -0.13886723149041033, -0.268314355946701, 0.05186763023863537, 0.3209790278230841, -0.20540421157887187, -0.2719318508123509, 0.027535013455869346, -0.25121814385056496, 0.019398511001708533, 0.08202909946916719, 0.030637098593881938, 0.02309959962131512, 0.08048177941354236, 0.031190413520718465, -0.09077293943905394, -0.2683110125833238, 0.23987926839088852, 0.02371872935357099, 0.1274792333368701, 0.06680561299435794, 0.05176203935924503, -0.003957958513344026, 0.015765130858529697, -0.1271160248140193, -0.09430433650920873, 0.0861812224893859, 0.20638067039327884, 0.05129070347175002, 0.12752806796748756, -0.3099956522152449, -0.11669918190631451, 0.17370785773035627, 0.20699543952283384, 0.11060151183681394, -0.0851065209029581, -0.35948546253488106, 0.09189529898529401, -0.21440671031090497, -0.10363520060505982, -0.09823396692897376, -0.07173430669883435, -0.1882213185255585, -0.34059958870644974, 0.10161123349980423, -0.053580892963730024, 0.025022022313240803, 0.006006662776185708, -0.15986648749212048, -0.1191441464529495, -0.0505528870095132, 0.21096528730251723, 0.03944565626707944, 0.16751050981669452, -0.24540588435143082, -0.14596744243530652, 0.4540796424403335, -0.0855494187956657, -0.1623225602735248, 0.2051056143028116, -0.14368273666824657, -0.17644454218503652, 0.16848237882133085, 0.16981102280187035, 0.06808759395569337, -0.11240926337889348, 0.2425536387970417, -0.06765326501970942, 0.187437992021171, 0.057848750627740766, 0.07549066851009624, 0.31902440243184266, 0.21503458215356475, 0.04127036000724242, 0.08066009635439689, -0.018181237533236996, -0.06806219617525737, -0.48675743550664247, -0.1431499772865062, -0.039375204924550475, 0.07078372156529715, -0.05767093059819103, -0.10693427955148498, 0.39789015227797053, 0.08532382281628823, 0.32920567604778994, 0.060226428703489626, 0.28959420925439006, 0.07784185656275826, 0.10455399625899384, 0.02774738793665863, 0.30218929667590244, 0.11015210027872312, 0.08701793501692157, -0.17553128782339922, -0.054664657065513156, 0.10253611107290996] |
712.2904 | Random matrices, free probability, planar algebras and subfactors | Using a family of graded algebra structures on a planar algebra and a family
of traces coming from random matrix theory, we obtain a tower of
non-commutative probability spaces, naturally associated to a given planar
algebra. The associated von Neumann algebras are II$_{1}$ factors whose
inclusions realize the given planar algebra as a system of higher relative
commutants. We thus give an alternative proof to a result of Popa that every
planar algebra can be realized by a subfactor.
| math.OA | using a family of graded algebra structures on a planar algebra and a family of traces coming from random matrix theory we obtain a tower of noncommutative probability spaces naturally associated to a given planar algebra the associated von neumann algebras are ii_1 factors whose inclusions realize the given planar algebra as a system of higher relative commutants we thus give an alternative proof to a result of popa that every planar algebra can be realized by a subfactor | [['using', 'a', 'family', 'of', 'graded', 'algebra', 'structures', 'on', 'a', 'planar', 'algebra', 'and', 'a', 'family', 'of', 'traces', 'coming', 'from', 'random', 'matrix', 'theory', 'we', 'obtain', 'a', 'tower', 'of', 'noncommutative', 'probability', 'spaces', 'naturally', 'associated', 'to', 'a', 'given', 'planar', 'algebra', 'the', 'associated', 'von', 'neumann', 'algebras', 'are', 'ii_1', 'factors', 'whose', 'inclusions', 'realize', 'the', 'given', 'planar', 'algebra', 'as', 'a', 'system', 'of', 'higher', 'relative', 'commutants', 'we', 'thus', 'give', 'an', 'alternative', 'proof', 'to', 'a', 'result', 'of', 'popa', 'that', 'every', 'planar', 'algebra', 'can', 'be', 'realized', 'by', 'a', 'subfactor']] | [-0.13427017432272056, 0.11252242095250477, -0.07915716294031236, 0.02887033085822116, -0.1115493464307223, -0.13212868102083478, -0.04184145425870732, 0.33620592097079827, -0.3631134024715122, -0.20607392283604492, 0.15630936273668386, -0.2418692085797651, -0.17073796008407033, 0.21563140153177554, -0.17896443195169484, -0.016840214546345458, 0.08124478200827784, 0.11894230934484756, -0.1320029389366649, -0.18780448502283306, 0.42689034710284557, -0.020302696757702323, 0.2175393280384567, -0.0001022818533680107, 0.13888556514925596, 0.006782744424653393, 0.00638356153806082, 0.0821864688415316, -0.146394759579138, 0.1708284825870555, 0.27850495206628323, 0.08553653124932058, 0.1950318296734668, -0.38113177143725496, -0.08405398330474391, 0.15681679077045638, 0.11999534646673954, 0.056875195672523374, -0.06252280344650196, -0.28229085016476957, 0.057973041317036636, -0.2991835292917971, -0.15977496767558064, -0.03953885804284128, 0.05868797567731972, -0.06138171419454149, -0.2943195815705046, -0.002287253377888399, 0.11545466447495517, 0.10547932468449013, -0.06878970917667958, -0.06049034440200304, -0.0678219236669284, 0.060954158972430075, -0.14606554429872032, 0.02825906164826283, 0.127255617775748, -0.06288101165142806, -0.2459459507814314, 0.33071970225671377, -0.01309479882386572, -0.22724655845874472, 0.11892893147666621, -0.1695165304360982, -0.16293784511523157, 0.10696594869788689, 0.08845874612938755, 0.0974051758198987, -0.054068520181824134, 0.18860887685316155, -0.16488124825107522, 0.06347847034376633, 0.12282743223035071, 0.009613817632846723, 0.14387213874938368, 0.08363862463591408, 0.07555261091034435, 0.18425867372764204, 0.128229926017561, -0.0005086077534876575, -0.348386668376153, -0.19380901151489985, -0.14043128588295814, 0.17454729852844267, -0.15386706376076187, -0.2594920055398458, 0.3592063410773496, 0.05900493324911104, 0.20832873211254047, 0.10463775459771292, 0.15897814691349677, 0.11513386791589658, 0.14203786085465853, 0.023057851321476548, 0.10326546718236766, 0.29860134832148405, -0.016098547408569464, -0.11165701143761884, -0.03708878334588076, 0.2426101966301286] |
712.2905 | Fractal Dimensions of a Weakly Clustered Distribution and the Scale of
Homogeneity | Homogeneity and isotropy of the universe at sufficiently large scales is a
fundamental premise on which modern cosmology is based. Fractal dimensions of
matter distribution is a parameter that can be used to test the hypothesis of
homogeneity. In this method, galaxies are used as tracers of the distribution
of matter and samples derived from various galaxy redshift surveys have been
used to determine the scale of homogeneity in the Universe. Ideally, for
homogeneity, the distribution should be a mono-fractal with the fractal
dimension equal to the ambient dimension. While this ideal definition is true
for infinitely large point sets, this may not be realised as in practice, we
have only a finite point set. The correct benchmark for realistic data sets is
a homogeneous distribution of a finite number of points and this should be used
in place of the mathematically defined fractal dimension for infinite number of
points (D) as a requirement for approach towards homogeneity. We derive the
expected fractal dimension for a homogeneous distribution of a finite number of
points. We show that for sufficiently large data sets the expected fractal
dimension approaches D in absence of clustering. It is also important to take
the weak, but non-zero amplitude of clustering at very large scales into
account. In this paper we also compute the expected fractal dimension for a
finite point set that is weakly clustered. Clustering introduces departures in
the Fractal dimensions from D and in most situations the departures are small
if the amplitude of clustering is small. Features in the two point correlation
function, like those introduced by Baryon Acoustic Oscillations (BAO) can lead
to non-trivial variations in the Fractal dimensions where the amplitude of
clustering and deviations from D are no longer related in a monotonic manner.
| astro-ph | homogeneity and isotropy of the universe at sufficiently large scales is a fundamental premise on which modern cosmology is based fractal dimensions of matter distribution is a parameter that can be used to test the hypothesis of homogeneity in this method galaxies are used as tracers of the distribution of matter and samples derived from various galaxy redshift surveys have been used to determine the scale of homogeneity in the universe ideally for homogeneity the distribution should be a monofractal with the fractal dimension equal to the ambient dimension while this ideal definition is true for infinitely large point sets this may not be realised as in practice we have only a finite point set the correct benchmark for realistic data sets is a homogeneous distribution of a finite number of points and this should be used in place of the mathematically defined fractal dimension for infinite number of points d as a requirement for approach towards homogeneity we derive the expected fractal dimension for a homogeneous distribution of a finite number of points we show that for sufficiently large data sets the expected fractal dimension approaches d in absence of clustering it is also important to take the weak but nonzero amplitude of clustering at very large scales into account in this paper we also compute the expected fractal dimension for a finite point set that is weakly clustered clustering introduces departures in the fractal dimensions from d and in most situations the departures are small if the amplitude of clustering is small features in the two point correlation function like those introduced by baryon acoustic oscillations bao can lead to nontrivial variations in the fractal dimensions where the amplitude of clustering and deviations from d are no longer related in a monotonic manner | [['homogeneity', 'and', 'isotropy', 'of', 'the', 'universe', 'at', 'sufficiently', 'large', 'scales', 'is', 'a', 'fundamental', 'premise', 'on', 'which', 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712.2906 | Local Quantum Pure-state Identification without Classical Knowledge | Suppose we want to distinguish two quantum pure states. We consider the case
in which no classical knowledge on the two states is given and only a pair of
samples of the two states is available. This problem is called quantum
pure-state identification problem. Our task is to optimize the mean
identification success probability, which is averaged over an independent
unitary invariant distribution of the two reference states. In this paper, the
two states are assumed bipartite states which are generally entangled. The
question is whether the maximum mean identification success probability can be
attained by means of an LOCC (Local Operations and Classical Communication)
measurement scheme. We will show that this is possible by constructing a POVM
which respects the conditions of LOCC.
| quant-ph | suppose we want to distinguish two quantum pure states we consider the case in which no classical knowledge on the two states is given and only a pair of samples of the two states is available this problem is called quantum purestate identification problem our task is to optimize the mean identification success probability which is averaged over an independent unitary invariant distribution of the two reference states in this paper the two states are assumed bipartite states which are generally entangled the question is whether the maximum mean identification success probability can be attained by means of an locc local operations and classical communication measurement scheme we will show that this is possible by constructing a povm which respects the conditions of locc | [['suppose', 'we', 'want', 'to', 'distinguish', 'two', 'quantum', 'pure', 'states', 'we', 'consider', 'the', 'case', 'in', 'which', 'no', 'classical', 'knowledge', 'on', 'the', 'two', 'states', 'is', 'given', 'and', 'only', 'a', 'pair', 'of', 'samples', 'of', 'the', 'two', 'states', 'is', 'available', 'this', 'problem', 'is', 'called', 'quantum', 'purestate', 'identification', 'problem', 'our', 'task', 'is', 'to', 'optimize', 'the', 'mean', 'identification', 'success', 'probability', 'which', 'is', 'averaged', 'over', 'an', 'independent', 'unitary', 'invariant', 'distribution', 'of', 'the', 'two', 'reference', 'states', 'in', 'this', 'paper', 'the', 'two', 'states', 'are', 'assumed', 'bipartite', 'states', 'which', 'are', 'generally', 'entangled', 'the', 'question', 'is', 'whether', 'the', 'maximum', 'mean', 'identification', 'success', 'probability', 'can', 'be', 'attained', 'by', 'means', 'of', 'an', 'locc', 'local', 'operations', 'and', 'classical', 'communication', 'measurement', 'scheme', 'we', 'will', 'show', 'that', 'this', 'is', 'possible', 'by', 'constructing', 'a', 'povm', 'which', 'respects', 'the', 'conditions', 'of', 'locc']] | [-0.15485259176784893, 0.17746874279433658, -0.09469880282338108, 0.05364468702746014, 0.001047770883287153, -0.16573562730674543, 0.04884943356380738, 0.3705243553004919, -0.2740493912189718, -0.27896904574346637, 0.076725514894802, -0.2671301098382701, -0.1195773265865301, 0.1542098026332115, -0.10515796740148817, 0.09067214454614347, 0.09614694107984824, 0.10033213560499492, -0.06024492940454248, -0.2887120180511697, 0.34605759722856627, 0.0021265992376532767, 0.3138375243832988, 0.01652486400581115, 0.08888868900061014, 0.014471573240664457, 0.0006239008488914658, -0.01781304950465358, -0.09807879723930749, 0.10485407670362733, 0.28832390016290327, 0.18577578166473213, 0.27581948150069485, -0.36590753515220936, -0.18759107606996211, 0.18490142815355812, 0.09469086931729238, 0.13657200052740895, -0.0071072943063618076, -0.28371273513485284, 0.06340198338805367, -0.14164399408975675, -0.07538873634691681, -0.04219321650452912, -0.00031970392146538345, -0.0691001028641157, -0.3052944209456684, 0.05930445118687085, 0.06964479490453677, 0.017935535654560814, -0.010614520372567517, -0.049714639414882945, 0.011730598922323195, 0.1505390688281266, -0.054530655915450844, 0.020763757135418635, 0.10902546873436339, -0.11221831674394649, -0.17682005886754562, 0.354448331369748, -0.023705896397586912, -0.26406984670545847, 0.18220005244685097, -0.0935688903329954, -0.12933213708193733, 0.05684721069560657, 0.09699773182341408, 0.14130336081894534, -0.17234597217869915, 0.04775510068077805, -0.10279008682869796, 0.1834896377272784, 0.03992306623202298, 0.07522062855423428, 0.17767132194750312, 0.0793607150647609, 0.14454791869126982, 0.1562855498153611, -0.05881625671322728, -0.1390106563814052, -0.31826735257862077, -0.20003995771009114, -0.2674962576016814, 0.08261288766328606, -0.008032183450855119, -0.1161080110337465, 0.4128789064210533, 0.10535119855382119, 0.16916556970306462, 0.04224590178872008, 0.27749116063839, 0.1239757242982441, -0.019572869634195682, 0.09717057303632534, 0.24949701973086885, 0.13071536540519446, -0.026944113685937236, -0.19600604906032282, 0.10802274121106753, 0.03148179502046156] |
712.2907 | STM tunneling through a quantum wire with a side-attached impurity | The STM tunneling through a quantum wire (QW) with a side-attached impurity
(atom, island) is investigated using a tight-binding model and the
nonequilibrium Keldysh Green function method. The impurity can be coupled to
one or more QW atoms. The presence of the impurity strongly modifies the local
density of states of the wire atoms, thus influences the STM tunneling through
all the wire atoms. The transport properties of the impurity itself are also
investigated mainly as a function of the wire length and the way it is coupled
to the wire. It is shown that the properties of the impurity itself and the way
it is coupled to the wire strongly influence the STM tunneling which is
reflected in the density of states and differential conductance.
| cond-mat.mes-hall | the stm tunneling through a quantum wire qw with a sideattached impurity atom island is investigated using a tightbinding model and the nonequilibrium keldysh green function method the impurity can be coupled to one or more qw atoms the presence of the impurity strongly modifies the local density of states of the wire atoms thus influences the stm tunneling through all the wire atoms the transport properties of the impurity itself are also investigated mainly as a function of the wire length and the way it is coupled to the wire it is shown that the properties of the impurity itself and the way it is coupled to the wire strongly influence the stm tunneling which is reflected in the density of states and differential conductance | [['the', 'stm', 'tunneling', 'through', 'a', 'quantum', 'wire', 'qw', 'with', 'a', 'sideattached', 'impurity', 'atom', 'island', 'is', 'investigated', 'using', 'a', 'tightbinding', 'model', 'and', 'the', 'nonequilibrium', 'keldysh', 'green', 'function', 'method', 'the', 'impurity', 'can', 'be', 'coupled', 'to', 'one', 'or', 'more', 'qw', 'atoms', 'the', 'presence', 'of', 'the', 'impurity', 'strongly', 'modifies', 'the', 'local', 'density', 'of', 'states', 'of', 'the', 'wire', 'atoms', 'thus', 'influences', 'the', 'stm', 'tunneling', 'through', 'all', 'the', 'wire', 'atoms', 'the', 'transport', 'properties', 'of', 'the', 'impurity', 'itself', 'are', 'also', 'investigated', 'mainly', 'as', 'a', 'function', 'of', 'the', 'wire', 'length', 'and', 'the', 'way', 'it', 'is', 'coupled', 'to', 'the', 'wire', 'it', 'is', 'shown', 'that', 'the', 'properties', 'of', 'the', 'impurity', 'itself', 'and', 'the', 'way', 'it', 'is', 'coupled', 'to', 'the', 'wire', 'strongly', 'influence', 'the', 'stm', 'tunneling', 'which', 'is', 'reflected', 'in', 'the', 'density', 'of', 'states', 'and', 'differential', 'conductance']] | [-0.14409969331112704, 0.18052711321543607, -0.07831349413073252, 0.03947937463886947, 0.017734555584851593, -0.19179889348350346, 0.06423811959139707, 0.371389337645341, -0.2943781030822604, -0.26202880852811394, -0.03507593968635543, -0.3368571796528404, -0.1216753028898633, 0.1546869375484271, 0.058913256958245286, 0.023610035474929545, 0.02676494116155756, 0.010179708076138345, -0.05049426419224354, -0.2552246788908387, 0.311496195154235, 0.05617135740532023, 0.30622073528282934, 0.11288640847695726, 0.0310950781226099, 0.07014972370280514, 0.10890033368819527, 0.06895166240809929, -0.1024779715847953, 0.08592006982034368, 0.18988964420425455, -0.08402459922113589, 0.20538746474665545, -0.5032930403267817, -0.19853513492714792, -0.04264164848312262, 0.1709656638355689, 0.18301531055199338, -0.03225816212770518, -0.3315043880914648, -0.0103976038831567, -0.10836919371060849, -0.11550287438911341, 0.005956490758791684, -0.006230109870167715, 0.03163757637911846, -0.2094746371583333, 0.06922298997048369, 0.02091174173567976, -0.0073305306113546805, -0.003209130452310164, -0.013570553490093775, -0.08504792948859552, 0.06539791215780294, -0.009300815993883011, 0.0359908193312881, 0.26243087665976156, -0.10596639599414572, -0.05884899288445475, 0.3375523735783876, -0.10370394562385858, -0.18203118104406352, 0.1828340662436353, -0.16303671465536196, 0.00853751260151584, 0.11027819119275563, 0.03494888492342499, 0.12124716599161427, -0.1991746151258075, 0.13272455744888811, -0.057419827623691945, 0.1552392412457497, 0.03714620394794832, 0.06862469407404581, 0.2412715032401066, 0.19105675801753053, 0.09708225295420676, 0.1462094469489308, -0.15419232021159832, -0.09397569636348635, -0.24285719953181725, -0.2178005706149316, -0.2536359405642124, 0.0541436244393625, -0.008724841426426013, -0.2351365671333735, 0.445996252494672, 0.1310721338312659, 0.19091786768810365, -0.07592760815030142, 0.2684618393180981, 0.20858408521679747, 0.0675550341931364, 0.012523365114623356, 0.18814506300675152, 0.2320422534470535, 0.06152516383943813, -0.3810012481907116, 0.05974840308125648, 0.008301704719160048] |
712.2908 | The Cops & Robber game on series-parallel graphs | The Cops and Robber game is played on undirected finite graphs. $k$ cops and
one robber are positioned on vertices and take turn in moving along edges. The
cops win if, after a move, a cop and the robber are on the same vertex. A graph
is called $k$-copwin, if the cops have a winning strategy.
It is known that planar graphs are 3-copwin (Aigner & Fromme, 1984) and that
outerplanar graphs are 2-copwin (Clarke, 2002). In this short note, we prove
that series-parallel (i.e., graphs with no $K_4$ minor) graphs are 2-copwin.
It is a well-known trick in the literature of cops & robber games to define
variants of the game which impose restrictions on the possible strategies of
the cops (see Clarke, 2002). For our proof, we define the ``cops & robber game
with exits''.
Our proof yields a winning strategy for the cops.
| math.CO | the cops and robber game is played on undirected finite graphs k cops and one robber are positioned on vertices and take turn in moving along edges the cops win if after a move a cop and the robber are on the same vertex a graph is called kcopwin if the cops have a winning strategy it is known that planar graphs are 3copwin aigner fromme 1984 and that outerplanar graphs are 2copwin clarke 2002 in this short note we prove that seriesparallel ie graphs with no k_4 minor graphs are 2copwin it is a wellknown trick in the literature of cops robber games to define variants of the game which impose restrictions on the possible strategies of the cops see clarke 2002 for our proof we define the cops robber game with exits our proof yields a winning strategy for the cops | [['the', 'cops', 'and', 'robber', 'game', 'is', 'played', 'on', 'undirected', 'finite', 'graphs', 'k', 'cops', 'and', 'one', 'robber', 'are', 'positioned', 'on', 'vertices', 'and', 'take', 'turn', 'in', 'moving', 'along', 'edges', 'the', 'cops', 'win', 'if', 'after', 'a', 'move', 'a', 'cop', 'and', 'the', 'robber', 'are', 'on', 'the', 'same', 'vertex', 'a', 'graph', 'is', 'called', 'kcopwin', 'if', 'the', 'cops', 'have', 'a', 'winning', 'strategy', 'it', 'is', 'known', 'that', 'planar', 'graphs', 'are', '3copwin', 'aigner', 'fromme', '1984', 'and', 'that', 'outerplanar', 'graphs', 'are', '2copwin', 'clarke', '2002', 'in', 'this', 'short', 'note', 'we', 'prove', 'that', 'seriesparallel', 'ie', 'graphs', 'with', 'no', 'k_4', 'minor', 'graphs', 'are', '2copwin', 'it', 'is', 'a', 'wellknown', 'trick', 'in', 'the', 'literature', 'of', 'cops', 'robber', 'games', 'to', 'define', 'variants', 'of', 'the', 'game', 'which', 'impose', 'restrictions', 'on', 'the', 'possible', 'strategies', 'of', 'the', 'cops', 'see', 'clarke', '2002', 'for', 'our', 'proof', 'we', 'define', 'the', 'cops', 'robber', 'game', 'with', 'exits', 'our', 'proof', 'yields', 'a', 'winning', 'strategy', 'for', 'the', 'cops']] | [-0.10771255199132221, 0.14457730900363197, -0.1195413751461144, 0.10397971985512414, -0.16100444396558616, -0.2548591999070985, 0.1095400747450185, 0.4055362881560411, -0.2542573222923758, -0.3417195654588535, 0.07007508616744806, -0.3506165810461555, -0.14098717086017132, -0.015001913286479457, -0.22647165589483587, -0.029000659756794837, 0.16122657658332692, 0.0906447593455336, 0.19085188211798335, -0.3628234338258543, 0.2471803414036653, -0.06382797921375771, 0.0833683252733733, 0.13066874414216728, 0.07209881618618966, 0.05725879675841757, 0.04527011950101171, 0.09986098410029497, -0.2142225840120123, -0.01271166558643537, 0.26629095601716213, 0.19892699691367202, 0.33056606256536075, -0.46416818595358306, -0.09815326150273904, 0.23576699706941975, 0.052301475289277734, 0.06968224813213705, 0.007962917486604834, -0.23609770501830749, 0.08713286765435312, -0.06623518827338037, -0.03105703475885093, 0.0512640390877745, 0.10171113351160395, 0.03927038435025939, -0.2727300857401653, -0.13111431364502227, 0.1409174690754818, 0.022991431371441908, 0.12284244692418725, -0.1507761067910386, -0.050190790429977435, 0.14852339829085395, -0.07678419010314558, 0.022031514529537943, 0.09294145243641522, -0.10806201445437702, -0.2739329948223063, 0.39044147956051994, 0.02714530619435079, -0.11218999905644783, 0.08264860943225878, -0.07848072213985557, -0.17339630586959953, 0.08230120524863846, 0.12677714552597275, 0.2322748346557741, -0.07874391084811318, 0.10370809665141029, -0.1795185783112954, 0.10104453627302844, 0.17697469977096522, -0.014073964767989569, 0.08514684199222497, 0.1457876427764339, 0.2855647071065115, 0.12746990383270063, 0.035349223161756524, -0.1434127296657867, -0.2827766289626847, -0.11608913209638558, -0.15908043044951878, -0.057593163601788025, -0.11195685298329668, -0.21821657916630752, 0.39273120587292526, 0.11375276379819427, 0.10223530338012747, 0.16009081178095325, 0.2672073317259284, 0.032498158875387165, 0.02127717955154367, 0.2178302382800861, 0.20961675121715026, 0.17131549027482315, 0.060537006350101105, -0.16420796001330018, 0.12228157808505265, 0.2183198768845094] |
712.2909 | Initial conditions for massive star formation | In this contribution, our knowledge of the initial conditions under which
massive star formation takes place is reviewed. Massive stars are born in
massive clumps of giant molecular clouds (GMCs), hence first the properties of
GMCs are summarized. As a potentially early stage of molecular clouds, infrared
dark clouds have been discovered a decade ago as dark patches in mid-infrared
(MIR) images of the Galactic plane and many studies of the physical conditions
within them have been conducted recently. Without the guidance of MIR
absorption, large scale, unbiased cold dust surveys can be used as well to
identify massive cold clumps. In the absence of indicators of ongoing massive
star formation, like compact HII regions and bright IR sources, these clumps
are the most promising objects for the study of the initial conditions of
massive star formation. Current observational approaches to find IR quiet
clumps and their physical and chemical properties are summarized.
| astro-ph | in this contribution our knowledge of the initial conditions under which massive star formation takes place is reviewed massive stars are born in massive clumps of giant molecular clouds gmcs hence first the properties of gmcs are summarized as a potentially early stage of molecular clouds infrared dark clouds have been discovered a decade ago as dark patches in midinfrared mir images of the galactic plane and many studies of the physical conditions within them have been conducted recently without the guidance of mir absorption large scale unbiased cold dust surveys can be used as well to identify massive cold clumps in the absence of indicators of ongoing massive star formation like compact hii regions and bright ir sources these clumps are the most promising objects for the study of the initial conditions of massive star formation current observational approaches to find ir quiet clumps and their physical and chemical properties are summarized | [['in', 'this', 'contribution', 'our', 'knowledge', 'of', 'the', 'initial', 'conditions', 'under', 'which', 'massive', 'star', 'formation', 'takes', 'place', 'is', 'reviewed', 'massive', 'stars', 'are', 'born', 'in', 'massive', 'clumps', 'of', 'giant', 'molecular', 'clouds', 'gmcs', 'hence', 'first', 'the', 'properties', 'of', 'gmcs', 'are', 'summarized', 'as', 'a', 'potentially', 'early', 'stage', 'of', 'molecular', 'clouds', 'infrared', 'dark', 'clouds', 'have', 'been', 'discovered', 'a', 'decade', 'ago', 'as', 'dark', 'patches', 'in', 'midinfrared', 'mir', 'images', 'of', 'the', 'galactic', 'plane', 'and', 'many', 'studies', 'of', 'the', 'physical', 'conditions', 'within', 'them', 'have', 'been', 'conducted', 'recently', 'without', 'the', 'guidance', 'of', 'mir', 'absorption', 'large', 'scale', 'unbiased', 'cold', 'dust', 'surveys', 'can', 'be', 'used', 'as', 'well', 'to', 'identify', 'massive', 'cold', 'clumps', 'in', 'the', 'absence', 'of', 'indicators', 'of', 'ongoing', 'massive', 'star', 'formation', 'like', 'compact', 'hii', 'regions', 'and', 'bright', 'ir', 'sources', 'these', 'clumps', 'are', 'the', 'most', 'promising', 'objects', 'for', 'the', 'study', 'of', 'the', 'initial', 'conditions', 'of', 'massive', 'star', 'formation', 'current', 'observational', 'approaches', 'to', 'find', 'ir', 'quiet', 'clumps', 'and', 'their', 'physical', 'and', 'chemical', 'properties', 'are', 'summarized']] | [-0.09390332168759474, 0.0933961328636441, -0.07201948803940825, 0.11852891315984558, -0.08773789256111128, 0.008465816542274908, 0.012393712906130389, 0.4273669325436155, -0.13175789869216947, -0.34150334986328496, 0.09277511911171495, -0.2317728059415042, -0.06062187038946385, 0.14670919474926503, 0.006852099299126493, -0.008628950249616763, 0.06144484895847592, -0.07703327932973313, 0.014241526618575544, -0.30411582699599465, 0.34094986664070415, 0.07344138807939743, 0.173333664878585, -0.009038626236515425, 0.021745285411894907, -0.19826295785301554, -0.10132601642615947, -0.04824269457653262, -0.1510047856657431, 0.053710228730041804, 0.25829162684823176, 0.15542605238984905, 0.24487894378964686, -0.45157067453659144, -0.2804788842590319, 0.06854013257106048, 0.22310420889650878, 0.0740193716467973, -0.10288154436701458, -0.3053392683661062, 0.08564965714231815, -0.14426826038002188, -0.18594054958107425, 0.032136365920712326, 0.06157191096899386, 0.06296943553443389, -0.22704375682861294, 0.12819818834990288, -0.02554555617659383, 0.06627934170716436, -0.10197040259844191, -0.13354091139607668, -0.06733070650545794, 0.11023155142388799, -0.006949902880401198, 0.04841192900142298, 0.24911661744665572, -0.20411408917059257, -0.04522891388597344, 0.4375827893785207, -0.03617401181955025, 0.003371425003446395, 0.30970241930761855, -0.18458616814204779, -0.21905781108325992, 0.1388454910343379, 0.15251985252256584, 0.15030339645873148, -0.1985348484393672, -0.007352145365895886, -0.032087482621564585, 0.12903613255974028, 0.07329692193565683, 0.18046056325821316, 0.403115381657152, 0.15384785009219365, -0.0019581022819205873, 0.12377979159218204, -0.18950179562423822, -0.11098529288265245, -0.21665069251169078, -0.11788901448663738, -0.1264782822941996, 0.0503690460015064, -0.10806799769132197, -0.09656541794804807, 0.27027309282372397, 0.09874400629181099, 0.1904201857149114, -0.04223166369860444, 0.3328915108360496, 0.03944721218146037, 0.15780962779478847, 0.10943057375132209, 0.3127199361173838, 0.13450289036762092, 0.1031385863997237, -0.20991739340041296, 0.051197631545197464, -0.030337115743629683] |
712.291 | Applications of physical methods in high-frequency futures markets | In the present work we demonstrate the application of different physical
methods to high-frequency or tick-by-tick financial time series data. In
particular, we calculate the Hurst exponent and inverse statistics for the
price time series taken from a range of futures indices. Additionally, we show
that in a limit order book the relaxation times of an imbalanced book state
with more demand or supply can be described by stretched exponential laws
analogous to those seen in many physical systems.
| q-fin.TR physics.data-an physics.soc-ph | in the present work we demonstrate the application of different physical methods to highfrequency or tickbytick financial time series data in particular we calculate the hurst exponent and inverse statistics for the price time series taken from a range of futures indices additionally we show that in a limit order book the relaxation times of an imbalanced book state with more demand or supply can be described by stretched exponential laws analogous to those seen in many physical systems | [['in', 'the', 'present', 'work', 'we', 'demonstrate', 'the', 'application', 'of', 'different', 'physical', 'methods', 'to', 'highfrequency', 'or', 'tickbytick', 'financial', 'time', 'series', 'data', 'in', 'particular', 'we', 'calculate', 'the', 'hurst', 'exponent', 'and', 'inverse', 'statistics', 'for', 'the', 'price', 'time', 'series', 'taken', 'from', 'a', 'range', 'of', 'futures', 'indices', 'additionally', 'we', 'show', 'that', 'in', 'a', 'limit', 'order', 'book', 'the', 'relaxation', 'times', 'of', 'an', 'imbalanced', 'book', 'state', 'with', 'more', 'demand', 'or', 'supply', 'can', 'be', 'described', 'by', 'stretched', 'exponential', 'laws', 'analogous', 'to', 'those', 'seen', 'in', 'many', 'physical', 'systems']] | [-0.09042988854896607, 0.1098769506208578, -0.10890398135620959, 0.1007110106411001, -0.03131298889786217, -0.09235530361957565, 0.04655895715496868, 0.3863379679431644, -0.2913070656300251, -0.28930527026045927, 0.15179769519150635, -0.2807271178646744, -0.12012683539474502, 0.25337647034158883, -0.07468795173512653, 0.06784532965408473, 0.007170262986711592, 0.01101572661295156, -0.010472924828741558, -0.24990965007462457, 0.25696725408322635, 0.014588500149076498, 0.2779903379445778, -0.011011929239464712, 0.05129389411842014, -0.018140387868720898, -0.07018664573566823, 0.041561892180986514, -0.1513915505777651, 0.1132886851076744, 0.27291878633484057, 0.05181302740297551, 0.2693194471582582, -0.4723418910009197, -0.2030742274172887, 0.12007537949830294, 0.12071533787102569, 0.05486896393608443, 0.03607114240187485, -0.24895727671564946, 0.015644353949995356, -0.23333215021492937, -0.14350817106734914, -0.10317817022670296, 0.06588240939227841, 0.031851685936032215, -0.27075462439392184, 0.1047701510914625, 0.06977156201035634, 0.06741637728306689, -0.069988770245374, -0.09503062839230782, 0.027133131756364733, 0.12438893117175638, 0.1258777409815524, -0.05631282578422865, 0.11210593947244785, -0.1243450129404664, -0.1775174583485232, 0.3661884060718968, -0.09597276148380406, -0.13422809136866393, 0.16524616153203422, -0.18298405568598758, -0.14366747979428382, 0.0904410004238539, 0.20714332052518294, 0.05752675922563936, -0.15509043991141305, 0.061636059786008134, -0.0001829627759848969, 0.1988846031607046, 0.06790569577590103, 0.0034108114004418066, 0.1555983598765481, 0.1508425986246925, 0.0534288690807121, 0.16025798945670028, -0.05595338682915214, -0.125298961242543, -0.26693434429449275, -0.15119392222052888, -0.2037505761284051, 0.10042120551666882, -0.11535494366665872, -0.14607424056746915, 0.3848535622458292, 0.16277790667866415, 0.2086234173348433, 0.07555744553845423, 0.24439084468574462, 0.19434150647595996, -0.015458220085482808, 0.08163291257038002, 0.1478403272708477, 0.002875170838441464, 0.17354250141519675, -0.14554471301085822, 0.0618193992354636, 0.036995040630049346] |
712.2911 | Ground State and Charge Renormalization in a Nonlinear Model of
Relativistic Atoms | We study the reduced Bogoliubov-Dirac-Fock (BDF) energy which allows to
describe relativistic electrons interacting with the Dirac sea, in an external
electrostatic potential. The model can be seen as a mean-field approximation of
Quantum Electrodynamics (QED) where photons and the so-called exchange term are
neglected. A state of the system is described by its one-body density matrix,
an infinite rank self-adjoint operator which is a compact perturbation of the
negative spectral projector of the free Dirac operator (the Dirac sea).
We study the minimization of the reduced BDF energy under a charge
constraint. We prove the existence of minimizers for a large range of values of
the charge, and any positive value of the coupling constant $\alpha$. Our
result covers neutral and positively charged molecules, provided that the
positive charge is not large enough to create electron-positron pairs. We also
prove that the density of any minimizer is an $L^1$ function and compute the
effective charge of the system, recovering the usual renormalization of charge:
the physical coupling constant is related to $\alpha$ by the formula
$\alpha_{\rm phys}\simeq \alpha(1+2\alpha/(3\pi)\log\Lambda)^{-1}$, where
$\Lambda$ is the ultraviolet cut-off. We eventually prove an estimate on the
highest number of electrons which can be bound by a nucleus of charge $Z$. In
the nonrelativistic limit, we obtain that this number is $\leq 2Z$, recovering
a result of Lieb.
This work is based on a series of papers by Hainzl, Lewin, Sere and Solovej
on the mean-field approximation of no-photon QED.
| math-ph math.MP | we study the reduced bogoliubovdiracfock bdf energy which allows to describe relativistic electrons interacting with the dirac sea in an external electrostatic potential the model can be seen as a meanfield approximation of quantum electrodynamics qed where photons and the socalled exchange term are neglected a state of the system is described by its onebody density matrix an infinite rank selfadjoint operator which is a compact perturbation of the negative spectral projector of the free dirac operator the dirac sea we study the minimization of the reduced bdf energy under a charge constraint we prove the existence of minimizers for a large range of values of the charge and any positive value of the coupling constant alpha our result covers neutral and positively charged molecules provided that the positive charge is not large enough to create electronpositron pairs we also prove that the density of any minimizer is an l1 function and compute the effective charge of the system recovering the usual renormalization of charge the physical coupling constant is related to alpha by the formula alpha_rm physsimeq alpha12alpha3piloglambda1 where lambda is the ultraviolet cutoff we eventually prove an estimate on the highest number of electrons which can be bound by a nucleus of charge z in the nonrelativistic limit we obtain that this number is leq 2z recovering a result of lieb this work is based on a series of papers by hainzl lewin sere and solovej on the meanfield approximation of nophoton qed | [['we', 'study', 'the', 'reduced', 'bogoliubovdiracfock', 'bdf', 'energy', 'which', 'allows', 'to', 'describe', 'relativistic', 'electrons', 'interacting', 'with', 'the', 'dirac', 'sea', 'in', 'an', 'external', 'electrostatic', 'potential', 'the', 'model', 'can', 'be', 'seen', 'as', 'a', 'meanfield', 'approximation', 'of', 'quantum', 'electrodynamics', 'qed', 'where', 'photons', 'and', 'the', 'socalled', 'exchange', 'term', 'are', 'neglected', 'a', 'state', 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712.2912 | Model selection for quantum homodyne tomography | This paper deals with a non-parametric problem coming from physics, namely
quantum tomography. That consists in determining the quantum state of a mode of
light through a homodyne measurement. We apply several model selection
procedures: penalized projection estimators, where we may use pattern functions
or wavelets, and penalized maximum likelihood estimators. In all these cases,
we get oracle inequalities. In the former we also have a polynomial rate of
convergence for the non-parametric problem. We finish the paper with
applications of similar ideas to the calibration of a photocounter, a
measurement apparatus counting the number of photons in a beam. Here the
mathematical problem reduces similarly to a non-parametric missing data
problem. We again get oracle inequalities, and better speed if the photocounter
is good.
| math.ST stat.TH | this paper deals with a nonparametric problem coming from physics namely quantum tomography that consists in determining the quantum state of a mode of light through a homodyne measurement we apply several model selection procedures penalized projection estimators where we may use pattern functions or wavelets and penalized maximum likelihood estimators in all these cases we get oracle inequalities in the former we also have a polynomial rate of convergence for the nonparametric problem we finish the paper with applications of similar ideas to the calibration of a photocounter a measurement apparatus counting the number of photons in a beam here the mathematical problem reduces similarly to a nonparametric missing data problem we again get oracle inequalities and better speed if the photocounter is good | [['this', 'paper', 'deals', 'with', 'a', 'nonparametric', 'problem', 'coming', 'from', 'physics', 'namely', 'quantum', 'tomography', 'that', 'consists', 'in', 'determining', 'the', 'quantum', 'state', 'of', 'a', 'mode', 'of', 'light', 'through', 'a', 'homodyne', 'measurement', 'we', 'apply', 'several', 'model', 'selection', 'procedures', 'penalized', 'projection', 'estimators', 'where', 'we', 'may', 'use', 'pattern', 'functions', 'or', 'wavelets', 'and', 'penalized', 'maximum', 'likelihood', 'estimators', 'in', 'all', 'these', 'cases', 'we', 'get', 'oracle', 'inequalities', 'in', 'the', 'former', 'we', 'also', 'have', 'a', 'polynomial', 'rate', 'of', 'convergence', 'for', 'the', 'nonparametric', 'problem', 'we', 'finish', 'the', 'paper', 'with', 'applications', 'of', 'similar', 'ideas', 'to', 'the', 'calibration', 'of', 'a', 'photocounter', 'a', 'measurement', 'apparatus', 'counting', 'the', 'number', 'of', 'photons', 'in', 'a', 'beam', 'here', 'the', 'mathematical', 'problem', 'reduces', 'similarly', 'to', 'a', 'nonparametric', 'missing', 'data', 'problem', 'we', 'again', 'get', 'oracle', 'inequalities', 'and', 'better', 'speed', 'if', 'the', 'photocounter', 'is', 'good']] | [-0.04967533832788468, 0.05063157271593809, -0.12611640163324772, 0.09018840154632926, -0.08092525905370712, -0.1816298830881715, 0.09014475767873227, 0.3675537901893258, -0.27951308235898614, -0.2810268319249153, 0.13981336935609578, -0.2944662455357611, -0.11660115737654268, 0.2175270599015057, -0.13608724574372172, 0.13938553392887115, 0.08879129636773724, -0.000243557158857584, -0.10897210400598124, -0.26631279981229455, 0.28319577796198425, 0.04831271949969232, 0.2641047458909452, -0.008481478739529848, 0.12989071405213326, 0.056992339603602886, -0.02869996539130807, 0.015193464820375084, -0.14103522115043599, 0.1297676778398454, 0.26505654013156893, 0.194039822191, 0.3446855410933495, -0.37756858445703984, -0.17304236107319593, 0.17303887351602315, 0.14839437017124146, 0.13087416835152543, -0.041400186087936164, -0.21338449354097247, 0.016794827975332736, -0.14694120484241285, -0.09098161243274808, -0.04501468582265079, -0.0758058799058199, 0.006304662468843162, -0.32074850472062827, 0.1151545391061809, 0.038350643349811434, 0.04073018225468695, -0.0081434470936656, -0.09127560627460479, 0.10416510531306267, 0.04460404039733112, 0.03690454468596727, 0.003227881744503975, 0.09612943223491312, -0.1416788360979408, -0.14709132727980614, 0.32358400017768146, -0.03588149745762348, -0.23175539392232894, 0.13391032138094305, -0.1253918136358261, -0.16763451509550215, 0.07412998388707638, 0.1951429748861119, 0.12248776878789067, -0.16105487853847444, 0.06369211281742901, -0.07860892590880394, 0.14471018794365229, 0.058448767714202404, 0.025281472554430365, 0.12685924193263054, 0.15691150833293796, 0.1143648009719327, 0.17762303771823645, -0.11056637513451278, -0.034393427688628436, -0.3308033700287342, -0.16878553879261016, -0.1980512382199522, 0.005762817542999983, -0.12003525307006202, -0.16826548003405334, 0.4185678591132164, 0.16485396593715995, 0.178755564019084, 0.08087592739611864, 0.31279198768734934, 0.11622650214284659, -0.004792561195790768, 0.0625274290703237, 0.23656352981366216, 0.16294135186821224, 0.06849800798669457, -0.17429097945429384, 0.08530646701157094, 0.06281578942015767] |
712.2913 | C^0-rigidity of Poisson brackets | Consider a functional associating to a pair of compactly supported smooth
functions on a symplectic manifold the maximum of their Poisson bracket. We
show that this functional is lower semi-continuous with respect to the product
uniform (C^0) norm on the space of pairs of such functions. This extends
previous results of Cardin-Viterbo and Zapolsky. The proof involves theory of
geodesics of the Hofer metric on the group of Hamiltonian diffeomorphisms. We
also discuss a failure of a similar semi-continuity phenomenon for multiple
Poisson brackets of three or more functions.
| math.SG math.CA | consider a functional associating to a pair of compactly supported smooth functions on a symplectic manifold the maximum of their poisson bracket we show that this functional is lower semicontinuous with respect to the product uniform c0 norm on the space of pairs of such functions this extends previous results of cardinviterbo and zapolsky the proof involves theory of geodesics of the hofer metric on the group of hamiltonian diffeomorphisms we also discuss a failure of a similar semicontinuity phenomenon for multiple poisson brackets of three or more functions | [['consider', 'a', 'functional', 'associating', 'to', 'a', 'pair', 'of', 'compactly', 'supported', 'smooth', 'functions', 'on', 'a', 'symplectic', 'manifold', 'the', 'maximum', 'of', 'their', 'poisson', 'bracket', 'we', 'show', 'that', 'this', 'functional', 'is', 'lower', 'semicontinuous', 'with', 'respect', 'to', 'the', 'product', 'uniform', 'c0', 'norm', 'on', 'the', 'space', 'of', 'pairs', 'of', 'such', 'functions', 'this', 'extends', 'previous', 'results', 'of', 'cardinviterbo', 'and', 'zapolsky', 'the', 'proof', 'involves', 'theory', 'of', 'geodesics', 'of', 'the', 'hofer', 'metric', 'on', 'the', 'group', 'of', 'hamiltonian', 'diffeomorphisms', 'we', 'also', 'discuss', 'a', 'failure', 'of', 'a', 'similar', 'semicontinuity', 'phenomenon', 'for', 'multiple', 'poisson', 'brackets', 'of', 'three', 'or', 'more', 'functions']] | [-0.20753538271872624, 0.05843753452592699, -0.10181079605436852, 0.09371229491741608, -0.06991841714162464, -0.05610636893173002, 0.03657847829559945, 0.34991078495725314, -0.27787724385846313, -0.2110229166210047, 0.03821403993226175, -0.2631622517100451, -0.17619997613523578, 0.19650875607410193, -0.12252935289341788, 0.052265455581205475, 0.05530498453034935, 0.10679947055706923, -0.152539447618024, -0.21554754334978166, 0.4605832905138165, -0.0011954389585959937, 0.23078090850983493, 0.05489294312957844, 0.12482194186040116, 0.015588791226036847, -0.03650698517660864, -0.01232978320099805, -0.14452137096709936, 0.1908551931106062, 0.18686836391729725, 0.08798133459640667, 0.26544932689814066, -0.4029783926777203, -0.20341721415223385, 0.11202703855550764, 0.07360755703385538, 0.002156323867066848, -0.008571770726947843, -0.30190528300590813, 0.10608837627891758, -0.1453948802928525, -0.15066735723733224, -0.05291351830502125, 0.00549090804468671, 0.08262214264620772, -0.24843727297742257, 0.04791500893737644, 0.10640273796955378, 0.06137831600128927, -0.11741194500460882, -0.09484115254599601, -0.05160195645558732, 0.04379957432154862, 0.030737813320063815, 0.10047202235595747, 0.12357043991373344, -0.03928161731032147, -0.10458241636462678, 0.35681325710505585, -0.07664582314530642, -0.29609876640444616, 0.1885626846606928, -0.1483304705153304, -0.19897960682018576, 0.08523664536716585, 0.11939084476431493, 0.17096556718884545, -0.09470800152683462, 0.1536018283692432, -0.07997448410076852, 0.06725357931149616, 0.08708730699833143, 0.01234405860833993, 0.10365699889900332, 0.10339827372378997, 0.18116493844321335, 0.13395215874929403, 0.006656803627265617, -0.10012835953172973, -0.35604600447021023, -0.20873536289912986, -0.18682523182889615, 0.10888223568062214, -0.13650439820362822, -0.2295133223418485, 0.3899059178974395, 0.0414905516451902, 0.2263955460141667, 0.14724779590456324, 0.22581590949134392, 0.1318237692466937, 0.03419241673492996, 0.04358539779522372, 0.14497183180752804, 0.17721981601789594, -0.0016783217063427649, -0.13174342825897672, -0.0017216874985024333, 0.14801875556374647] |
712.2914 | Topological susceptibility in two-flavor QCD | We compute the topological susceptibility in QCD with two flavors of
dynamical fermions using numerical simulation with overlap fermions.
| hep-lat | we compute the topological susceptibility in qcd with two flavors of dynamical fermions using numerical simulation with overlap fermions | [['we', 'compute', 'the', 'topological', 'susceptibility', 'in', 'qcd', 'with', 'two', 'flavors', 'of', 'dynamical', 'fermions', 'using', 'numerical', 'simulation', 'with', 'overlap', 'fermions']] | [-0.1866381432076818, 0.3391926377325466, -0.1399989793763349, 0.016174411303118655, 0.01182270422577858, -0.09835599066910188, 0.09351811930537224, 0.3688095098263339, -0.07432373073932372, -0.2673527021941386, 0.008339401230363077, -0.40798583548319967, -0.14055710277324052, 0.06777003152590048, 0.12951538015745187, 0.16926468546061138, 0.047447176674675, -0.024215947248433765, -0.21116374874193417, -0.2782474018045162, 0.3727455205823246, -0.12396146357059479, 0.1887885502686626, 0.12838694384615673, -8.140979824881804e-05, -0.002176092618978337, -0.022421292666541904, 0.012321856559107178, -0.10760749937770397, 0.019521393372040046, 0.1853912427016583, -0.11056799000423205, 0.06061222639523054, -0.4178894222959092, -0.24205872024360456, 0.06268709692123689, 0.16737544958136583, 0.07520994377371512, -0.10730470658132904, -0.3045802924193834, 0.08665013107422151, -0.2405105405732205, -0.16639097662348495, -0.19682899994873687, -0.17308167426993973, -0.038067711027045, -0.3060923148142664, 0.10341778574021239, -0.21024090147999996, 0.14145669355792434, 0.015132517995018708, -0.13351548306251826, -0.04796168975237953, 0.10409881125547384, 0.115852181358557, -3.3173710107803345e-05, 0.0203212018516895, -0.22032135176031212, -0.280427325909075, 0.45334917331408514, -0.076297705276183, -0.24100607947299355, 0.2498905474418088, -0.1838514294083181, -0.12440602037761557, 0.08004169229810175, 0.11364148135640119, 0.059271872386728465, -0.0819218922406435, 0.09113994701520393, -0.09503721945772045, 0.18156639721832776, 0.01233527275096429, 0.05284502619485322, 0.2855234205918877, 0.18401145719383893, -0.023028990498891, 0.18439225342712903, -0.029783871233169185, -0.20127170229036556, -0.2845888135856704, -0.12612988869659603, -0.2702379222763212, 0.07961836530777969, -0.1490559344621081, -0.20547183563834742, 0.45832276148231405, 0.25385130912457643, 0.13462481883011365, 0.05701893753078031, 0.2908561672819288, 0.13689918129851944, 0.04191443275072073, 0.105400503073868, 0.1800014702603221, 0.19255749616575868, 0.07863286235614826, -0.3875183972873186, -0.25448231562040746, 0.21242052350977533] |
712.2915 | On the Transition to Turbulence of Oscillatory Flow of Liquid Helium-4 | Oscillating solid bodies have frequently been used for studying the
properties of normal and superfluid helium. In particular, the transition from
laminar flow to turbulence has attracted much interest recently. The purpose of
this note is to review several central features of this transition in
oscillatory flow, which have been inaccurately formulated in some recent work.
| cond-mat.other | oscillating solid bodies have frequently been used for studying the properties of normal and superfluid helium in particular the transition from laminar flow to turbulence has attracted much interest recently the purpose of this note is to review several central features of this transition in oscillatory flow which have been inaccurately formulated in some recent work | [['oscillating', 'solid', 'bodies', 'have', 'frequently', 'been', 'used', 'for', 'studying', 'the', 'properties', 'of', 'normal', 'and', 'superfluid', 'helium', 'in', 'particular', 'the', 'transition', 'from', 'laminar', 'flow', 'to', 'turbulence', 'has', 'attracted', 'much', 'interest', 'recently', 'the', 'purpose', 'of', 'this', 'note', 'is', 'to', 'review', 'several', 'central', 'features', 'of', 'this', 'transition', 'in', 'oscillatory', 'flow', 'which', 'have', 'been', 'inaccurately', 'formulated', 'in', 'some', 'recent', 'work']] | [-0.06476393059295203, 0.16447546893115422, -0.12930520868394524, 0.012527291336612376, -0.059646915744191835, -0.08568141642691833, -0.06737500439131898, 0.3540982704133577, -0.25432267045835033, -0.26556452949132237, 0.12219257468365997, -0.2558328450457858, -0.15536661542137153, 0.19169303425587714, -0.09221045968921057, 0.1449450499078791, -0.006636092073417136, 0.04781591099786705, -0.06176770813596834, -0.1994711790965604, 0.31395589879580904, 0.02160356825749789, 0.3021600550938664, 0.04417845640065415, -0.00017562109444822584, -0.12214130772710112, -0.008895099246209221, 0.06444392562843859, -0.20210870278866164, 0.12233128189109266, 0.28825630417226683, 0.04286632607857298, 0.30299401230045725, -0.47372367582283914, -0.3244959872016417, 0.12004168216039293, 0.19235400544546014, 0.15020833028704925, -0.12405265413690358, -0.2482804563395413, 0.04753217749696757, -0.22420414522639476, -0.09408901293396152, -0.05527529829747176, 0.12589854490943253, 0.04345134279823729, -0.1734535352484922, 0.06317309188723032, 0.1079199549110074, 0.11170623937089529, -0.024520014678793296, -0.11292226672438639, 0.02175985708267295, 0.14511245801778777, 0.14599559542174184, 0.05649339919494066, 0.09572494294791666, -0.14340665193906585, -0.028147484591629888, 0.3891122905936624, -0.034650664044810195, -0.13263073344049708, 0.23868248438728706, -0.17211736294224725, -0.17924322476444235, 0.17067688193804184, 0.20815640813504746, 0.1256685863648142, -0.1706328324507922, 0.033894589020097295, -0.09877656972301858, 0.07869326556932979, 0.09697958003796105, 0.02014300593873486, 0.2465673732970442, 0.21098462244013458, -0.013029465443521206, 0.16094778677714722, -0.09030278822007988, -0.13684995331069721, -0.18728926784491964, -0.15826000832021236, -0.16565989784430712, 0.023177629336714745, 0.06208771673456275, -0.15244704228072287, 0.39363577363214325, 0.14239696469823165, 0.1957401936815586, -0.08223851489310618, 0.2578832979613383, 0.1144426784677697, 0.032903389539569616, 0.058456223898766826, 0.3391073012467781, 0.2060347849536421, 0.17741883812206133, -0.16499958021449856, 0.11124562464829069, 0.06429744193779438] |
712.2916 | Causal hydrodynamics of gauge theory plasmas from AdS/CFT duality | We study causal hydrodynamics (Israel-Stewart theory) of gauge theory plasmas
from the AdS/CFT duality. Causal hydrodynamics requires new transport
coefficients (relaxation times) and we compute them for a number of
supersymmetric gauge theories including the N=4 SYM. However, the relaxation
times obtained from the "shear mode" do not agree with the ones from the "sound
mode," which implies that the Israel-Stewart theory is not a sufficient
framework to describe the gauge theory plasmas.
| hep-th hep-ph nucl-th | we study causal hydrodynamics israelstewart theory of gauge theory plasmas from the adscft duality causal hydrodynamics requires new transport coefficients relaxation times and we compute them for a number of supersymmetric gauge theories including the n4 sym however the relaxation times obtained from the shear mode do not agree with the ones from the sound mode which implies that the israelstewart theory is not a sufficient framework to describe the gauge theory plasmas | [['we', 'study', 'causal', 'hydrodynamics', 'israelstewart', 'theory', 'of', 'gauge', 'theory', 'plasmas', 'from', 'the', 'adscft', 'duality', 'causal', 'hydrodynamics', 'requires', 'new', 'transport', 'coefficients', 'relaxation', 'times', 'and', 'we', 'compute', 'them', 'for', 'a', 'number', 'of', 'supersymmetric', 'gauge', 'theories', 'including', 'the', 'n4', 'sym', 'however', 'the', 'relaxation', 'times', 'obtained', 'from', 'the', 'shear', 'mode', 'do', 'not', 'agree', 'with', 'the', 'ones', 'from', 'the', 'sound', 'mode', 'which', 'implies', 'that', 'the', 'israelstewart', 'theory', 'is', 'not', 'a', 'sufficient', 'framework', 'to', 'describe', 'the', 'gauge', 'theory', 'plasmas']] | [-0.09521828432669481, 0.18309415090982228, -0.14476974943831358, 0.10633664038064188, -0.07532758242769601, -0.1387341396551426, -0.04938689297805094, 0.28322653411185905, -0.2050978133123215, -0.22793653481065818, 0.03935588936461774, -0.26104622632775404, -0.14038520607433908, 0.14063046103477325, -0.012291330946226642, 0.06841635487157188, 0.03543053468695701, 0.026373140848790333, -0.09210717934183776, -0.21883077015111554, 0.24872836063947681, 0.023287857423396143, 0.3019361920042397, 0.05366983537702528, 0.11211052406196521, 0.032115023882983075, -0.04182668223862268, 0.07188856290423706, -0.1789429722875492, 0.07894037323302194, 0.25829268777615405, 0.0915857787397116, 0.1408757155327356, -0.51832679967868, -0.28014638191982083, 0.00844955182800146, 0.10526684917707302, 0.19959327423377346, 0.043084457095661395, -0.20780729309796062, 0.03628478314064137, -0.18555960651129894, -0.10719313041134801, -0.1045756047999818, -0.03297903148891174, -0.1283326587521739, -0.30388738625134304, 0.17227492602350675, 0.02122688614316795, 0.0380141104839436, -0.046044045185338556, -0.03278034041023316, -0.03980771800796565, 0.020479002246658686, 0.14490450934940718, 0.04309731741971655, 0.14059874962071237, -0.21883440131882895, -0.15242734025806598, 0.41368156890958957, -0.04767909398532077, -0.18768506992149026, 0.24504234339429498, -0.18147746843528256, -0.15723699506703917, 0.11160044081202924, 0.13556950549556784, 0.20165158684480272, -0.15578343376058013, 0.17377416562362358, -0.07246384655495416, 0.13507241157381095, 0.07274346797063641, 0.03241686330317226, 0.22094288736275614, 0.07578158687340887, -0.0038524071705106594, 0.06076564257071443, 0.019127695543343863, -0.144400909657858, -0.4376211778758323, -0.12221803053677695, -0.1128733543135315, 0.08257765710483024, -0.12434855956972532, -0.15500993522566628, 0.33134477304243676, 0.1786801404868291, 0.10076040335554527, 0.12304575478638943, 0.1949266795808934, 0.12343191764594937, 0.0576700103303341, 0.11137341071966372, 0.2841783793617601, 0.24855574390098248, 0.11335853449617551, -0.29253720260888644, -0.09260368302515516, 0.21785280532012247] |
712.2917 | Comment on "Viscous hydrodynamics relaxation time from AdS/CFT
correspondence" | This is a comment to hep-th/0703243. The paper determined the relaxation time
tau_pi of the shear viscous stress for the N=4 SYM from AdS/CFT correspondence.
The purpose of this comment is to point out that the value of tau_pi is 3 times
larger than their result if one takes into account an additional term in the
hydrodynamic equation.
| hep-th hep-ph nucl-th | this is a comment to hepth0703243 the paper determined the relaxation time tau_pi of the shear viscous stress for the n4 sym from adscft correspondence the purpose of this comment is to point out that the value of tau_pi is 3 times larger than their result if one takes into account an additional term in the hydrodynamic equation | [['this', 'is', 'a', 'comment', 'to', 'hepth0703243', 'the', 'paper', 'determined', 'the', 'relaxation', 'time', 'tau_pi', 'of', 'the', 'shear', 'viscous', 'stress', 'for', 'the', 'n4', 'sym', 'from', 'adscft', 'correspondence', 'the', 'purpose', 'of', 'this', 'comment', 'is', 'to', 'point', 'out', 'that', 'the', 'value', 'of', 'tau_pi', 'is', '3', 'times', 'larger', 'than', 'their', 'result', 'if', 'one', 'takes', 'into', 'account', 'an', 'additional', 'term', 'in', 'the', 'hydrodynamic', 'equation']] | [-0.1428579583298415, 0.14662539082596676, -0.13979509662379297, 0.045106685844968936, -0.05832212857836694, -0.09225756438906517, -0.04573964598596815, 0.2631324809534769, -0.25084520494075196, -0.22059995684315237, 0.09393815688682687, -0.2856660438211341, -0.11335905925615837, 0.14668972177529022, 0.009332015538555487, -0.011477137147857431, 0.030679723870809795, 0.04719430159597674, -0.11008214312932339, -0.2658624555915594, 0.30135400241992455, 0.05066353536880853, 0.23302753449401312, 0.1228393548119225, 0.09505354874489601, -0.010850967651461823, -0.035142741966665836, 0.009737194728171616, -0.1845508507712542, 0.04286060745321345, 0.20831609427062958, 0.05523488902601234, 0.23418182069272325, -0.4652239911323577, -0.19616281489531198, 0.08162640772857949, 0.11567010331016622, 0.14984669781437046, 0.08877692507220465, -0.20029551287492117, 0.09252349757834484, -0.1478226712798667, -0.1193303463065572, 0.0060582367964742475, 0.10562920995187342, -0.1135968911592244, -0.2654320231001628, 0.1575528067585669, 0.10011727485413614, 0.001086640220723654, -0.07715553510117165, -0.09600917570979188, -0.031230155856495623, 0.07769815211200662, 0.17402724892293153, 0.09491624821206196, 0.12761400009734197, -0.19014215782252059, -0.03531952630401703, 0.413582857959626, -0.042339045755828635, -0.1866091095628993, 0.14223640124117465, -0.17132136293915673, -0.11577653867731753, 0.12741321482156454, 0.13076296436453336, 0.1423046085820125, -0.16889430721404783, 0.08795917713851259, -0.04204176559129305, 0.17126499657496697, 0.08133133894584157, -0.03284700963188682, 0.17936252392501684, 0.18005160795394004, 0.03496637748423637, 0.1565542177607616, -0.04863066856954614, -0.07510442210753497, -0.3809506783033149, -0.18423092016427403, -0.1789283093489837, 0.13557420375250412, -0.16150291237097822, -0.10275264179105298, 0.3425950669078973, 0.18564236337286338, 0.20940061240138388, 0.0948503508085483, 0.25292733073103846, 0.1955555039376282, 0.05672897960124701, 0.08093732116711244, 0.30077621981240155, 0.11585969770359889, 0.12974405240496262, -0.28650916144741995, -0.016974360902646656, 0.16496080174846084] |
712.2918 | Non-diagonal reflection for the non-critical XXZ model | The most general physical boundary $S$-matrix for the open XXZ spin chain in
the non-critical regime ($\cosh (\eta)>1$) is derived starting from the bare
Bethe ansazt equations. The boundary $S$-matrix as expected is expressed in
terms of $\Gamma_q$-functions. In the isotropic limit corresponding results for
the open XXX chain are also reproduced.
| hep-th cond-mat.stat-mech math-ph math.MP nlin.SI | the most general physical boundary smatrix for the open xxz spin chain in the noncritical regime cosh eta1 is derived starting from the bare bethe ansazt equations the boundary smatrix as expected is expressed in terms of gamma_qfunctions in the isotropic limit corresponding results for the open xxx chain are also reproduced | [['the', 'most', 'general', 'physical', 'boundary', 'smatrix', 'for', 'the', 'open', 'xxz', 'spin', 'chain', 'in', 'the', 'noncritical', 'regime', 'cosh', 'eta1', 'is', 'derived', 'starting', 'from', 'the', 'bare', 'bethe', 'ansazt', 'equations', 'the', 'boundary', 'smatrix', 'as', 'expected', 'is', 'expressed', 'in', 'terms', 'of', 'gamma_qfunctions', 'in', 'the', 'isotropic', 'limit', 'corresponding', 'results', 'for', 'the', 'open', 'xxx', 'chain', 'are', 'also', 'reproduced']] | [-0.16837176021188496, 0.16920482210582122, -0.0021649992652237413, 0.12339411962311715, 0.005344619443640113, -0.15639957981184124, -0.06262050535529852, 0.29216320961713793, -0.22247549533843994, -0.17740861915051936, 0.12349388473900035, -0.3061746473610401, -0.051490211449563505, 0.2143941605091095, 0.05604691137559712, 0.06554320913972334, 0.05957418333273381, 0.10197293572127819, -0.12839125972241164, -0.1764326687529683, 0.30525552444159987, -0.0032055390812456607, 0.26089127134531737, 0.05574170524254441, 0.04927062526345253, 0.06377963085658848, 0.09948510929942131, -0.04266261043958366, -0.1681495999544859, 0.06033665107563138, 0.2964768861234188, -0.01805215038359165, 0.07063660129904747, -0.42115138489753007, -0.16695631531416438, 0.02442832718603313, 0.23848744707182049, 0.14572216231375934, 0.0831628261320293, -0.27930747415870427, 0.01096810195595026, -0.18177192708477377, -0.28293953962624074, 0.0057996735535562035, 0.00025502311065793036, -0.02844647371210158, -0.23781316259875893, 0.12510177995020058, 0.028598112147301437, 0.045026616118848325, -0.109071028244216, -0.183045494814869, -0.05748383637517691, 0.12445974946022034, 0.06561724858824164, 0.08910058298148214, 0.09509189996868372, -0.16430657712742686, -0.06639270696789026, 0.3436266746371984, -0.06093707382678985, -0.2553505291044712, 0.1492294708127156, -0.15389789026230574, -0.14517083673737943, 0.08728905872441828, 0.02184897992759943, 0.06368015140295029, -0.2417626580968499, 0.24729748718440533, -0.07792876135092229, 0.07741878419648857, 0.07695911486633122, 0.00042419043951667844, 0.1862757947295904, 0.12304570896551013, -0.007247824054211378, 0.19696063878480344, 0.00312519540078938, -0.20355372807942332, -0.38911691680550575, -0.09891235824674367, -0.21974669540300965, 0.1141297134384513, -0.16018144469708204, -0.21003897860646248, 0.3143164729326963, 0.1540922394430163, 0.15487503711134196, 0.05858683738857508, 0.14387322202324868, 0.21441143348580227, 0.0014459806866943836, 0.1152742622513324, 0.21626841766759752, 0.18854794392362237, 0.06368037914857268, -0.2683556236652657, 0.013079212894663215, 0.1339207204245031] |
712.2919 | DNA ejection from bacteriophage: towards a general behavior for osmotic
suppression experiments | We present in this work in vitro measurements of the force ejecting DNA from
two distinct bacteriophages (T5 and lambda) using the smotic-suppression
technique. Our data are analyzed by revisiting the current theories of DNA
packaging in spherical capsids. In particular we show that a simplified
analytical model based on bending considerations only is able to account
quantitatively for the experimental findings. Physical and biological
consequences are discussed.
| physics.bio-ph | we present in this work in vitro measurements of the force ejecting dna from two distinct bacteriophages t5 and lambda using the smoticsuppression technique our data are analyzed by revisiting the current theories of dna packaging in spherical capsids in particular we show that a simplified analytical model based on bending considerations only is able to account quantitatively for the experimental findings physical and biological consequences are discussed | [['we', 'present', 'in', 'this', 'work', 'in', 'vitro', 'measurements', 'of', 'the', 'force', 'ejecting', 'dna', 'from', 'two', 'distinct', 'bacteriophages', 't5', 'and', 'lambda', 'using', 'the', 'smoticsuppression', 'technique', 'our', 'data', 'are', 'analyzed', 'by', 'revisiting', 'the', 'current', 'theories', 'of', 'dna', 'packaging', 'in', 'spherical', 'capsids', 'in', 'particular', 'we', 'show', 'that', 'a', 'simplified', 'analytical', 'model', 'based', 'on', 'bending', 'considerations', 'only', 'is', 'able', 'to', 'account', 'quantitatively', 'for', 'the', 'experimental', 'findings', 'physical', 'and', 'biological', 'consequences', 'are', 'discussed']] | [-0.07952284985986441, 0.14154143468476832, -0.07295064215979247, 0.05211214468216718, -0.05063823484051139, -0.14185530524839884, 0.036077779616965955, 0.39590779883759236, -0.20214694764451194, -0.26111638176241025, 0.054688622507808815, -0.2548148390600708, -0.22347695575054013, 0.23856694923727703, -0.05073986570229198, 0.0258195651973139, 0.06557481933850795, -0.025749048513513225, 0.030525168873119488, -0.196682003243312, 0.27538986682002226, 0.06543014028262514, 0.26954993784928055, 0.09962342277780842, 0.05176938172089242, -0.017489889207462878, -0.03415257337072225, 0.04671546214941277, -0.23593880454090913, 0.15379660051236096, 0.21714328122047236, 0.12515803902590675, 0.19434064412628538, -0.5315387641816441, -0.2544963622549132, 0.035836301836073954, 0.15526670431579226, 0.17120863917047408, -0.10196611374693075, -0.24013930361773542, 0.08290178053525847, -0.14276387788522155, -0.09926627887023697, -0.0832643160846696, 0.016798333398678075, 0.06033643291404804, -0.2154359872133207, 0.09901970464027306, 0.04100361280143261, 0.07778331322192367, -0.12050673250915177, -0.1330628230500577, -0.005074177170172334, 0.1298154391932176, 0.09025776585904575, -0.02483468191392386, 0.20082018576187097, -0.09086151541655522, -0.11682140136679718, 0.39087475433167235, -0.014052479986601802, -0.1964834172334244, 0.18089211996255525, -0.1335518332059259, -0.1811156154457313, 0.08946926850797747, 0.10706447534707945, 0.0918155275285244, -0.19168660008529229, 0.04304068083979134, -0.02391777334060631, 0.15914355481821876, 0.06467424542990638, -0.03642921878803355, 0.18904957754203855, 0.2154178547624276, -0.10753307555482458, 0.1473031174391508, -0.08551218022536765, -0.11411607090328167, -0.2987426403187104, -0.1276443145974581, -0.16218598487217034, 0.03332650495011971, -0.07415441782239811, -0.08791510206160706, 0.36225168690530224, 0.16336293365639537, 0.20802650153080918, 0.0561157603428435, 0.3029733027623438, -0.008996589081500894, 0.07502311108105664, -0.05135024821997356, 0.2523613541400922, 0.07653398988698956, 0.07145617048103195, -0.234458776646113, 0.05365207858050047, 0.0071753808053961] |
712.292 | Single-Bottleneck Approximation for Driven Lattice Gases with Disorder
and Open Boundary Conditions | We investigate the effects of disorder on driven lattice gases with open
boundaries using the totally asymmetric simple exclusion process as a
paradigmatic example. Disorder is realized by randomly distributed defect sites
with reduced hopping rate. In contrast to equilibrium, even macroscopic
quantities in disordered non-equilibrium systems depend sensitively on the
defect sample. We study the current as function of the entry and exit rates and
the realization of disorder and find that it is, in leading order, determined
by the longest stretch of consecutive defect sites (single-bottleneck
approximation, SBA). Using results from extreme value statistics the SBA allows
to study ensembles with fixed defect density which gives accurate results, e.g.
for the expectation value of the current. Corrections to SBA come from
effective interactions of bottlenecks close to the longest one. Defects close
to the boundaries can be described by effective boundary rates and lead to
shifts of the phase transitions. Finally it is shown that the SBA also works
for more complex models. As an example we discuss a model with internal states
that has been proposed to describe transport of the kinesin KIF1A.
| cond-mat.stat-mech | we investigate the effects of disorder on driven lattice gases with open boundaries using the totally asymmetric simple exclusion process as a paradigmatic example disorder is realized by randomly distributed defect sites with reduced hopping rate in contrast to equilibrium even macroscopic quantities in disordered nonequilibrium systems depend sensitively on the defect sample we study the current as function of the entry and exit rates and the realization of disorder and find that it is in leading order determined by the longest stretch of consecutive defect sites singlebottleneck approximation sba using results from extreme value statistics the sba allows to study ensembles with fixed defect density which gives accurate results eg for the expectation value of the current corrections to sba come from effective interactions of bottlenecks close to the longest one defects close to the boundaries can be described by effective boundary rates and lead to shifts of the phase transitions finally it is shown that the sba also works for more complex models as an example we discuss a model with internal states that has been proposed to describe transport of the kinesin kif1a | [['we', 'investigate', 'the', 'effects', 'of', 'disorder', 'on', 'driven', 'lattice', 'gases', 'with', 'open', 'boundaries', 'using', 'the', 'totally', 'asymmetric', 'simple', 'exclusion', 'process', 'as', 'a', 'paradigmatic', 'example', 'disorder', 'is', 'realized', 'by', 'randomly', 'distributed', 'defect', 'sites', 'with', 'reduced', 'hopping', 'rate', 'in', 'contrast', 'to', 'equilibrium', 'even', 'macroscopic', 'quantities', 'in', 'disordered', 'nonequilibrium', 'systems', 'depend', 'sensitively', 'on', 'the', 'defect', 'sample', 'we', 'study', 'the', 'current', 'as', 'function', 'of', 'the', 'entry', 'and', 'exit', 'rates', 'and', 'the', 'realization', 'of', 'disorder', 'and', 'find', 'that', 'it', 'is', 'in', 'leading', 'order', 'determined', 'by', 'the', 'longest', 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712.2921 | Accretion funnels onto weakly magnetized young stars | Aims : We re-examine the conditions required to steadily deviate an accretion
flow from a circumstellar disc into a magnetospheric funnel flow onto a slow
rotating young forming star. Methods : New analytical constraints on the
formation of accretion funnels flows due to the presence of a dipolar stellar
magnetic field disrupting the disc are derived. The Versatile Advection Code is
used to confirm these constraints numerically. Axisymmetric MHD simulations are
performed, where a stellar dipole field enters the resistive accretion disc,
whose structure is self-consistently computed. Results : The analytical
criterion derived allows to predict a priori the position of the truncation
radius from a non perturbative accretion disc model. Accretion funnels are
found to be robust features which occur below the co-rotation radius, where the
stellar poloidal magnetic pressure becomes both at equipartition with the disc
thermal pressure and is comparable to the disc poloidal ram pressure. We
confirm the results of Romanova et al. 2002 and find accretion funnels for
stellar dipole fields as low as 140 G in the low accretion rate limit of
$10^{-9} M_\odot.yr^{-1}$. With our present numerical setup with no disc
magnetic field, we found no evidence of winds, neither disc driven nor X-winds,
and the star is only spun up by its interaction with the disc. Conclusions :
Weak dipole fields, similar in magnitude to those observed, lead to the
development of accretion funnel flows in weakly accreting T Tauri stars.
However, the higher accretion observed for most T Tauri stars (${\dot M} \sim
10^{-8} M_\odot.yr^{-1}$) requires either larger stellar field strength and/or
different magnetic topologies to allow for magnetospheric accretion.
| astro-ph | aims we reexamine the conditions required to steadily deviate an accretion flow from a circumstellar disc into a magnetospheric funnel flow onto a slow rotating young forming star methods new analytical constraints on the formation of accretion funnels flows due to the presence of a dipolar stellar magnetic field disrupting the disc are derived the versatile advection code is used to confirm these constraints numerically axisymmetric mhd simulations are performed where a stellar dipole field enters the resistive accretion disc whose structure is selfconsistently computed results the analytical criterion derived allows to predict a priori the position of the truncation radius from a non perturbative accretion disc model accretion funnels are found to be robust features which occur below the corotation radius where the stellar poloidal magnetic pressure becomes both at equipartition with the disc thermal pressure and is comparable to the disc poloidal ram pressure we confirm the results of romanova et al 2002 and find accretion funnels for stellar dipole fields as low as 140 g in the low accretion rate limit of 109 m_odotyr1 with our present numerical setup with no disc magnetic field we found no evidence of winds neither disc driven nor xwinds and the star is only spun up by its interaction with the disc conclusions weak dipole fields similar in magnitude to those observed lead to the development of accretion funnel flows in weakly accreting t tauri stars however the higher accretion observed for most t tauri stars dot m sim 108 m_odotyr1 requires either larger stellar field strength andor different magnetic topologies to allow for magnetospheric accretion | [['aims', 'we', 'reexamine', 'the', 'conditions', 'required', 'to', 'steadily', 'deviate', 'an', 'accretion', 'flow', 'from', 'a', 'circumstellar', 'disc', 'into', 'a', 'magnetospheric', 'funnel', 'flow', 'onto', 'a', 'slow', 'rotating', 'young', 'forming', 'star', 'methods', 'new', 'analytical', 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712.2922 | Absorption-Fluctuation Theorem for Nuclear Reactions: Brink-Axel,
Incomplete Fusion and All That | We discuss the connection between absorption, averages and fluctuations in
nuclear reactions. The fluctuations in the entrance channel result in the
compound nucleus, Hauser-Feshbach, cross section, the fluctuations in the
intermediate channels, result in modifications of multistep reaction cross
sections, while the fluctuations in the final channel result in hybrid cross
sections that can be used to describe incomplete fusion reactions. We discuss
the latter in details and comment on the validity of the assumptions used in
the develpoment of the Surrogate method. We also discuss the theory of
multistep reactions with regards to intermediate state fluctuations and the
energy dependence and non-locality of the intermediate channels optical
potentials.
| nucl-th | we discuss the connection between absorption averages and fluctuations in nuclear reactions the fluctuations in the entrance channel result in the compound nucleus hauserfeshbach cross section the fluctuations in the intermediate channels result in modifications of multistep reaction cross sections while the fluctuations in the final channel result in hybrid cross sections that can be used to describe incomplete fusion reactions we discuss the latter in details and comment on the validity of the assumptions used in the develpoment of the surrogate method we also discuss the theory of multistep reactions with regards to intermediate state fluctuations and the energy dependence and nonlocality of the intermediate channels optical potentials | [['we', 'discuss', 'the', 'connection', 'between', 'absorption', 'averages', 'and', 'fluctuations', 'in', 'nuclear', 'reactions', 'the', 'fluctuations', 'in', 'the', 'entrance', 'channel', 'result', 'in', 'the', 'compound', 'nucleus', 'hauserfeshbach', 'cross', 'section', 'the', 'fluctuations', 'in', 'the', 'intermediate', 'channels', 'result', 'in', 'modifications', 'of', 'multistep', 'reaction', 'cross', 'sections', 'while', 'the', 'fluctuations', 'in', 'the', 'final', 'channel', 'result', 'in', 'hybrid', 'cross', 'sections', 'that', 'can', 'be', 'used', 'to', 'describe', 'incomplete', 'fusion', 'reactions', 'we', 'discuss', 'the', 'latter', 'in', 'details', 'and', 'comment', 'on', 'the', 'validity', 'of', 'the', 'assumptions', 'used', 'in', 'the', 'develpoment', 'of', 'the', 'surrogate', 'method', 'we', 'also', 'discuss', 'the', 'theory', 'of', 'multistep', 'reactions', 'with', 'regards', 'to', 'intermediate', 'state', 'fluctuations', 'and', 'the', 'energy', 'dependence', 'and', 'nonlocality', 'of', 'the', 'intermediate', 'channels', 'optical', 'potentials']] | [-0.09158171819834841, 0.13065442192547638, -0.12723502475974457, 0.14534209580123297, 0.05885983144847352, -0.07580347563975294, 0.05173067753566343, 0.3409807582155143, -0.2677841194725912, -0.24498816097684956, 0.014896348100625526, -0.2937430780927796, -0.08287701807027563, 0.12573027090808173, 0.011467400626407578, 0.06536537978302585, 0.051357313195978284, 0.03434047278939584, -0.048010423682296834, -0.19481568666465512, 0.3506724532018629, 0.12345500763744936, 0.2734932973468249, 0.16457710995819738, 0.048486695522357015, 0.06899892484743593, -0.029439175894501013, -0.0673053376803841, -0.1415256781126677, 0.08149732245183593, 0.2851385687896555, 0.050011017500773206, 0.14365678346809854, -0.44332854395065835, -0.19929368405628506, 0.08576155143764315, 0.12300491450918377, 0.15501047276737973, -0.029239743509022264, -0.2629646769011342, 0.01589667455078564, -0.19417889018056042, -0.10778487659883984, -0.048522301889750936, 0.020495401627016723, 0.06262096425075261, -0.2606258340384982, 0.10130514982642409, 0.03903303864206948, 0.013984671187236768, -0.09325347863107818, -0.15717514127988472, -0.01982236724483584, 0.09942360013860081, 0.06550959635679739, -0.05100524022511992, 0.2031315326169475, -0.1548411548351271, -0.12179647021234856, 0.3283401980927778, -0.09153370875993384, -0.1947648809590471, 0.12789768226756587, -0.17196595735437825, -0.132863370819154, 0.1524399534602641, 0.216241602563735, 0.10844432847753782, -0.13984444133997168, 0.05594036386587546, 0.06730020367497698, 0.13897480187647113, 0.05153502566406691, 0.054611933265957945, 0.09864844062254516, 0.17244782065972686, -0.034341019642359895, 0.11033031087125215, -0.1364824087038602, -0.16101146375316136, -0.3773889357241195, -0.15817181560971322, -0.08217570303999093, 0.0371329254308425, -0.035784248584655, -0.084377678056192, 0.3471253107754736, 0.1504272531521498, 0.27001814474138097, -0.029779216415599125, 0.2839799428768798, 0.0947674118033653, 0.04582959995444847, 0.03707853540641452, 0.31135947724650487, 0.2209068878528175, 0.11012380652838823, -0.24308369959781476, 0.1090985702290926, 0.015755323265944053] |
712.2923 | A Class of LULU Operators on Multi-Dimensional Arrays | The LULU operators for sequences are extended to multi-dimensional arrays via
the morphological concept of connection in a way which preserves their
essential properties, e.g. they are separators and form a four element fully
ordered semi-group. The power of the operators is demonstrated by deriving a
total variation preserving discrete pulse decomposition of images.
| cs.CV | the lulu operators for sequences are extended to multidimensional arrays via the morphological concept of connection in a way which preserves their essential properties eg they are separators and form a four element fully ordered semigroup the power of the operators is demonstrated by deriving a total variation preserving discrete pulse decomposition of images | [['the', 'lulu', 'operators', 'for', 'sequences', 'are', 'extended', 'to', 'multidimensional', 'arrays', 'via', 'the', 'morphological', 'concept', 'of', 'connection', 'in', 'a', 'way', 'which', 'preserves', 'their', 'essential', 'properties', 'eg', 'they', 'are', 'separators', 'and', 'form', 'a', 'four', 'element', 'fully', 'ordered', 'semigroup', 'the', 'power', 'of', 'the', 'operators', 'is', 'demonstrated', 'by', 'deriving', 'a', 'total', 'variation', 'preserving', 'discrete', 'pulse', 'decomposition', 'of', 'images']] | [-0.1489903932540781, 0.11520607260711214, -0.0875984047112676, 0.09356959798174945, -0.07052361948795065, -0.06180064368096215, 0.008804317132604343, 0.4176183003518317, -0.3202167663861204, -0.2827128461320643, 0.16238651601640783, -0.28982123998597403, -0.13558177991459766, 0.173547081976991, -0.03361335389005641, 0.07021992119283553, 0.03632527233222155, -0.00398146402504709, -0.08461966862496748, -0.15602395736991806, 0.3241994672937802, 0.017430642223054613, 0.27249618454111946, -0.025427207109276897, 0.13478038410000778, -0.019156079256424197, -0.10784408407009861, 0.041782792454964864, -0.03981259011629003, 0.18127498055670271, 0.22670432745858474, 0.1150659140613344, 0.22732504878055165, -0.4282410801215856, -0.20610185474786838, 0.11019864527689707, 0.1278412999826186, 0.034571684868920045, -0.07327436440175882, -0.2618392070548402, 0.10860042651054552, -0.12068608645522208, -0.10027552530583408, -0.09911152878043207, 0.03189439038720189, 0.0732579308182553, -0.27676031754041713, 0.026003921369987505, 0.12649977193386466, 0.04833152815182176, -0.03434596667756085, -0.04769290931936768, -0.055368965310561985, 0.14200096421323163, -0.06003275007026753, -0.0401677745135708, 0.10390409407274867, -0.08890008994084955, -0.10456769468038585, 0.3746000001620915, -0.028570858919044474, -0.2315456505726885, 0.13884385501000066, -0.12233967934433301, -0.0989542978781241, 0.12952276377041858, 0.11082131445356128, 0.1455229609920126, -0.1807475923905494, 0.10887541722708934, -0.04127361151148324, 0.14160918847968182, 0.06860866830511778, 0.10335066195370422, 0.16885843424609415, 0.11875205309371706, 0.09430761268810818, 0.17760418020770885, -0.02482854043935529, -0.07564407549539788, -0.2741783325629378, -0.15738430268053585, -0.13057984513472076, 0.0020984531449223004, -0.1013633800598823, -0.20521333365252725, 0.45349471831125104, 0.04473367307542099, 0.18692123922907436, 0.041048470903964095, 0.25207435178432475, 0.1355573829194462, 0.1165799412561615, 0.017869072285032383, 0.1355383394639594, 0.2092378383062573, 0.06464576274501505, -0.1885201754738335, 0.05700014473835903, 0.15909481798816058] |
712.2924 | Dynamical Wave Function Collapse Models in Quantum Measure Theory | The structure of Collapse Models is investigated in the framework of Quantum
Measure Theory, a histories-based approach to quantum mechanics. The underlying
structure of coupled classical and quantum systems is elucidated in this
approach which puts both systems on a spacetime footing. The nature of the
coupling is exposed: the classical histories have no dynamics of their own but
are simply tied, more or less closely, to the quantum histories.
| quant-ph | the structure of collapse models is investigated in the framework of quantum measure theory a historiesbased approach to quantum mechanics the underlying structure of coupled classical and quantum systems is elucidated in this approach which puts both systems on a spacetime footing the nature of the coupling is exposed the classical histories have no dynamics of their own but are simply tied more or less closely to the quantum histories | [['the', 'structure', 'of', 'collapse', 'models', 'is', 'investigated', 'in', 'the', 'framework', 'of', 'quantum', 'measure', 'theory', 'a', 'historiesbased', 'approach', 'to', 'quantum', 'mechanics', 'the', 'underlying', 'structure', 'of', 'coupled', 'classical', 'and', 'quantum', 'systems', 'is', 'elucidated', 'in', 'this', 'approach', 'which', 'puts', 'both', 'systems', 'on', 'a', 'spacetime', 'footing', 'the', 'nature', 'of', 'the', 'coupling', 'is', 'exposed', 'the', 'classical', 'histories', 'have', 'no', 'dynamics', 'of', 'their', 'own', 'but', 'are', 'simply', 'tied', 'more', 'or', 'less', 'closely', 'to', 'the', 'quantum', 'histories']] | [-0.13812863220227883, 0.14037570779078773, -0.1700680979941223, 0.09777993089186826, -0.04648538181292159, -0.1585166578114565, 0.015904598747978786, 0.3321247601482485, -0.25169768908194134, -0.2795800928558622, 0.05727997438849083, -0.24844671998705184, -0.18142629238178154, 0.17655871057816383, -0.0377719375704016, 0.030367412005684206, -0.0014409054203757218, 0.07948879414637174, -0.057828968191253285, -0.24992865775711834, 0.328168245498091, 0.07837663222037788, 0.30248933818989565, 0.0062717540821592725, 0.07137778343499772, -0.025619056641257236, -0.016875112688701066, 0.021655342408588955, -0.09438565259001085, 0.15135469769094406, 0.17398820974698798, 0.12108340510832412, 0.2665777100715786, -0.4652445590655718, -0.26296967439619556, 0.04586475539420332, 0.08114986007401187, 0.14445147969859784, -0.023921151212458167, -0.2929245300590992, 0.05330862410898719, -0.14537682279146144, -0.124290175310203, -0.04619830158273024, -0.0050237585391317095, -0.05975324655217784, -0.1412745952955447, 0.10930300482681819, 0.08684828083662849, 0.022775967166359934, -0.03512453902512789, -0.027863748782380883, -0.008275035496002862, 0.11649666487106256, -0.01927600266644731, 0.005228638003713319, 0.14365274930771973, -0.14818691288320615, -0.1607954153458455, 0.4609789686543601, 0.01907823708440576, -0.24368219186684914, 0.24354644011972207, -0.13958945933596364, -0.08961519487867398, 0.060378942679381, 0.13297768124113127, 0.1475650851149112, -0.16370016516219557, 0.13268837037280068, 0.023087608042572226, 0.1644409461479102, -0.009552005991073592, 0.09362360715832828, 0.27380054784672603, 0.14538154936661676, 0.004971264159706022, 0.09496213772467205, 0.009860348784630851, -0.2718231051628079, -0.25454058508787836, -0.14193862344005279, -0.17748428505978414, 0.10079017969380533, -0.0310933875383593, -0.19443569568518018, 0.34982244220695324, 0.15220303771451915, 0.17570294892814542, 0.0017772680896866535, 0.2791622563132218, 0.13665156977118126, 0.0606523880851455, 0.02345690566913358, 0.24219283262001617, 0.22231891466570752, 0.053777195759383695, -0.2456716294466917, 0.07068163537021194, 0.026089992939627597] |
712.2925 | Coherent adiabatic theory of two-electron quantum dot molecules in
external spin baths | We derive an accurate molecular orbital based expression for the coherent
time evolution of a two-electron wave function in a quantum dot molecule where
the electrons interact with each other, with external time dependent
electromagnetic fields and with a surrounding nuclear spin reservoir. The
theory allows for direct numerical modeling of the decoherence in quantum dots
due to hyperfine interactions. Calculations result in good agreement with
recent singlet-triplet dephasing experiments by Laird et. al. [Phys. Rev. Lett.
97, 056801 (2006)], as well as analytical model calculations. Furthermore, it
is shown that using a much faster electric switch than applied in these
experiments will transfer the initial state to excited states where the
hyperfine singlet-triplet mixing is negligible.
| cond-mat.other | we derive an accurate molecular orbital based expression for the coherent time evolution of a twoelectron wave function in a quantum dot molecule where the electrons interact with each other with external time dependent electromagnetic fields and with a surrounding nuclear spin reservoir the theory allows for direct numerical modeling of the decoherence in quantum dots due to hyperfine interactions calculations result in good agreement with recent singlettriplet dephasing experiments by laird et al phys rev lett 97 056801 2006 as well as analytical model calculations furthermore it is shown that using a much faster electric switch than applied in these experiments will transfer the initial state to excited states where the hyperfine singlettriplet mixing is negligible | [['we', 'derive', 'an', 'accurate', 'molecular', 'orbital', 'based', 'expression', 'for', 'the', 'coherent', 'time', 'evolution', 'of', 'a', 'twoelectron', 'wave', 'function', 'in', 'a', 'quantum', 'dot', 'molecule', 'where', 'the', 'electrons', 'interact', 'with', 'each', 'other', 'with', 'external', 'time', 'dependent', 'electromagnetic', 'fields', 'and', 'with', 'a', 'surrounding', 'nuclear', 'spin', 'reservoir', 'the', 'theory', 'allows', 'for', 'direct', 'numerical', 'modeling', 'of', 'the', 'decoherence', 'in', 'quantum', 'dots', 'due', 'to', 'hyperfine', 'interactions', 'calculations', 'result', 'in', 'good', 'agreement', 'with', 'recent', 'singlettriplet', 'dephasing', 'experiments', 'by', 'laird', 'et', 'al', 'phys', 'rev', 'lett', '97', '056801', '2006', 'as', 'well', 'as', 'analytical', 'model', 'calculations', 'furthermore', 'it', 'is', 'shown', 'that', 'using', 'a', 'much', 'faster', 'electric', 'switch', 'than', 'applied', 'in', 'these', 'experiments', 'will', 'transfer', 'the', 'initial', 'state', 'to', 'excited', 'states', 'where', 'the', 'hyperfine', 'singlettriplet', 'mixing', 'is', 'negligible']] | [-0.1029818827757994, 0.1816114056468633, -0.013165189520929519, 0.006070755893746629, -0.009744135002231495, -0.14650000831605786, 0.052448673276270494, 0.39031703860108924, -0.17432872656012416, -0.3261205562764508, -0.05923996470335266, -0.26987771977062047, -0.11863242951221764, 0.21991086749232605, 0.03557994663635762, 0.050587487462748826, 0.08516988693139492, -0.029278241503888216, -0.06129422574304044, -0.19189742581250194, 0.20656300738501626, 0.11844784517087933, 0.2629048724252826, 0.07941253453445359, 0.07212398988871366, 0.033060333118415795, 0.05318009817741939, -0.053780255313867174, -0.13328627554898032, 0.054723291118076056, 0.25669946408687305, 0.0013953017122629616, 0.23590428000475225, -0.5094327122355119, -0.20855351800146776, 0.036307440363228895, 0.1234887353282394, 0.21872564383113804, -0.04278710968063599, -0.34354006526514125, -0.02297037919290746, -0.22694020638735884, -0.08387669766098897, -0.1200094425609996, 0.09390838526619169, 0.016681959406815022, -0.32548176595129263, 0.13894239358572114, -0.000242896784001436, 0.010513218234041426, -0.057136743079222195, -0.08589282633068088, -0.01909506379459531, 0.04925000575932268, -0.015342050006127574, 0.10992899171721476, 0.16520112371231374, -0.06593617644861467, -0.14779521671370563, 0.3441691843745036, -0.11217989371833292, -0.16997325031134564, 0.20756052823490503, -0.14913880950413072, -0.0768413660215994, 0.10010103621862383, 0.10119111003338271, 0.1369488826379753, -0.1328394624352869, 0.08636891619754064, -0.0314337111467, 0.17939258948700804, 0.048321698971379265, 0.07331223964523753, 0.16483710929910597, 0.12992484184204894, 0.002955408424584784, 0.09805822444524473, -0.09569580829304317, -0.17194490552069938, -0.2436209409378278, -0.14908209658100002, -0.2306074298774967, 0.1396138013013923, 0.0037254632702375897, -0.1062110649234253, 0.3920682771330397, 0.14604149397828767, 0.18680839935958418, -0.051122743109018244, 0.2912473327711097, 0.12899940159832501, 0.009338447159458684, 0.09356457213432136, 0.262400086905457, 0.22767327259032008, 0.05967730025633469, -0.32237549995382625, 0.04233528000330473, -0.027880628306705218] |
712.2926 | Density fluctuations and chiral phase transition | Based on an effective QCD Lagrangian we discuss the properties of charge
density fluctuations in the vicinity of chiral phase transition. We explore
thermodynamics in the presence of spinodal phase separation. We show that
appearance of spinodal decomposition in a non-equilibrium first order phase
transition results in divergence of the charge density fluctuations related
with the electric charge and baryon number conservation. Consequently,
divergent fluctuations at the chiral phase transition are not only attributed
to the critical end point but are also there along the first order phase
transition if the spinodal phase separation take place. Based on the mean field
dynamics, the critical exponents for these singular behavior of charge
susceptibilities are also discussed.
| hep-ph nucl-th | based on an effective qcd lagrangian we discuss the properties of charge density fluctuations in the vicinity of chiral phase transition we explore thermodynamics in the presence of spinodal phase separation we show that appearance of spinodal decomposition in a nonequilibrium first order phase transition results in divergence of the charge density fluctuations related with the electric charge and baryon number conservation consequently divergent fluctuations at the chiral phase transition are not only attributed to the critical end point but are also there along the first order phase transition if the spinodal phase separation take place based on the mean field dynamics the critical exponents for these singular behavior of charge susceptibilities are also discussed | [['based', 'on', 'an', 'effective', 'qcd', 'lagrangian', 'we', 'discuss', 'the', 'properties', 'of', 'charge', 'density', 'fluctuations', 'in', 'the', 'vicinity', 'of', 'chiral', 'phase', 'transition', 'we', 'explore', 'thermodynamics', 'in', 'the', 'presence', 'of', 'spinodal', 'phase', 'separation', 'we', 'show', 'that', 'appearance', 'of', 'spinodal', 'decomposition', 'in', 'a', 'nonequilibrium', 'first', 'order', 'phase', 'transition', 'results', 'in', 'divergence', 'of', 'the', 'charge', 'density', 'fluctuations', 'related', 'with', 'the', 'electric', 'charge', 'and', 'baryon', 'number', 'conservation', 'consequently', 'divergent', 'fluctuations', 'at', 'the', 'chiral', 'phase', 'transition', 'are', 'not', 'only', 'attributed', 'to', 'the', 'critical', 'end', 'point', 'but', 'are', 'also', 'there', 'along', 'the', 'first', 'order', 'phase', 'transition', 'if', 'the', 'spinodal', 'phase', 'separation', 'take', 'place', 'based', 'on', 'the', 'mean', 'field', 'dynamics', 'the', 'critical', 'exponents', 'for', 'these', 'singular', 'behavior', 'of', 'charge', 'susceptibilities', 'are', 'also', 'discussed']] | [-0.18913617290192, 0.25108094169345746, -0.12318797050649823, 0.03153421601037616, -0.005247618338983992, -0.047724325383972865, 0.06653728602939973, 0.31153140480771824, -0.22142589417812616, -0.2188525935230048, 0.06773954232668747, -0.31066815711598356, -0.1635153399861377, 0.055484591796994207, 0.032619968105269515, 0.02380796351024638, -0.08910177428599285, 0.06606459519623414, -0.13223715487604393, -0.14927510497686655, 0.360855231401713, -0.03928896871840824, 0.324440487968209, 0.1424752739328972, 0.022767388807361663, -0.03841661126555308, 0.06348364764581556, 0.05606229326728245, -0.1782138560233643, -0.02301606229789879, 0.22577462579407123, -0.02045860132696006, 0.1719767785590628, -0.4261985643159436, -0.21257694643800673, 0.1199400491202655, 0.1535891820291948, 0.1304942138493061, -0.08779497097408318, -0.2589213978823112, 0.051557389727753145, -0.11413098157423994, -0.15838250606118337, -0.13372044168088748, -0.005983910680262615, 0.030306567678875896, -0.23219314896623078, 0.15401722363464576, 0.04185357689857483, 0.054969304046877054, -0.06483579277384864, -0.1268898135860977, -0.0679829442711628, 0.10754360199055595, 0.06655073121756963, 0.03913568121016674, 0.18377065154440378, -0.14490244839259464, -0.07297746370465535, 0.36592989325239933, -0.03202358158102826, -0.11187266057924083, 0.1328426953567111, -0.20481169506421557, -0.15018541750943531, 0.2164694729099131, 0.150453747857524, 0.09696208865422269, -0.09936914848487662, 0.033227064988434155, 0.09773413428591321, 0.1690009513943274, 0.041975244618547354, 0.03540092616078808, 0.28304357371576455, 0.15161031018132748, 0.057392546842279644, 0.13821298391153308, -0.10479939244687557, -0.20077083750587443, -0.35290622487664225, -0.13272359395480673, -0.21694987524381798, 0.010132558969907342, -0.1287161374949273, -0.1978269676434929, 0.3946996440625061, 0.21352556565695482, 0.21343826084478718, -0.01629845198324841, 0.2614620898404847, 0.15970389027472423, 0.004782025613214658, 0.052840379414998966, 0.2932272705128012, 0.16599427735352, 0.16174134360120188, -0.301747319114435, 0.027008951503945434, 0.13895655694093717] |
712.2927 | Masses of radiation pressure supported stars in extreme relativistic
realm | We discuss that in the extreme relativistic limit, i.e., when z >>1, where z
is the surface gravitational redshift, there could be radiation pressure
supported and dominated stars with arbitrary gravitational mass, high or low.
Such Objects are called Eternally Collapsing Objects (ECOs). ECOs are
practically as compact as Schwarzschil Black Holes (BH) and, observationally,
are likely to be mistaken as BHs. Further since any object undergoing continued
collapse must first become an ECO before becoming a true BH state charcterized
by M=0, the observed BH Candidates are ECOs.
| physics.gen-ph | we discuss that in the extreme relativistic limit ie when z 1 where z is the surface gravitational redshift there could be radiation pressure supported and dominated stars with arbitrary gravitational mass high or low such objects are called eternally collapsing objects ecos ecos are practically as compact as schwarzschil black holes bh and observationally are likely to be mistaken as bhs further since any object undergoing continued collapse must first become an eco before becoming a true bh state charcterized by m0 the observed bh candidates are ecos | [['we', 'discuss', 'that', 'in', 'the', 'extreme', 'relativistic', 'limit', 'ie', 'when', 'z', '1', 'where', 'z', 'is', 'the', 'surface', 'gravitational', 'redshift', 'there', 'could', 'be', 'radiation', 'pressure', 'supported', 'and', 'dominated', 'stars', 'with', 'arbitrary', 'gravitational', 'mass', 'high', 'or', 'low', 'such', 'objects', 'are', 'called', 'eternally', 'collapsing', 'objects', 'ecos', 'ecos', 'are', 'practically', 'as', 'compact', 'as', 'schwarzschil', 'black', 'holes', 'bh', 'and', 'observationally', 'are', 'likely', 'to', 'be', 'mistaken', 'as', 'bhs', 'further', 'since', 'any', 'object', 'undergoing', 'continued', 'collapse', 'must', 'first', 'become', 'an', 'eco', 'before', 'becoming', 'a', 'true', 'bh', 'state', 'charcterized', 'by', 'm0', 'the', 'observed', 'bh', 'candidates', 'are', 'ecos']] | [-0.10965913741595366, 0.2409087798668307, -0.04259944443633272, 0.1784654931583315, -0.10429477618361654, -0.14605344353582372, -0.004852794206023894, 0.3739528195212849, -0.1287262688009915, -0.29910928485068405, 0.15480419207994023, -0.2710309395545416, -0.027734308355403216, 0.2273125206940511, -0.046260298069682904, -0.0006306154484098607, 0.030010224498586136, 0.006676782800985331, -0.037131850582392704, -0.22502029618904504, 0.36662429973313754, 0.06467018992936407, 0.08143593781013889, -0.05160364501749758, 0.06868150986238933, -0.06677785323699936, -0.0018064504944380712, 0.042941220414253294, -0.09804605433906875, -0.03674504385245117, 0.2777292072264986, 0.1814672103580299, 0.23794773761818017, -0.36394697726196185, -0.2109256689648398, 0.13444105768576264, 0.21658744998487897, 0.12391624142500487, -0.13663709289605983, -0.3076625449307771, 0.14455000056080858, -0.25374185074840416, -0.160943982323674, -0.009646389575209469, 0.1089206781365316, -0.007807667726989497, -0.21554117261786648, 0.13317061425318985, 0.07416317660880106, -0.0802761127627243, -0.11089868449859998, -0.03672530551822009, -0.10262269151545214, 0.06491965644719047, 0.08975758143721825, 0.10344655862321485, 0.22616574449189517, -0.14223318225280804, -0.05509845504473725, 0.42399894691665063, -0.007880625711880963, -0.09732390752866525, 0.22359786511250687, -0.24534178979758342, -0.12361125259485561, 0.13995388450778343, 0.12936723151836882, 0.1749049492857673, -0.1101890270135548, 0.0501506385021044, 0.06276435694995929, 0.16265898405320264, 0.10334299552513668, 0.07275030413240363, 0.46488613001367246, 0.09550082003327341, -0.01417697347510098, 0.07585909240085377, -0.09324436655945399, -0.000946404899216511, -0.25943769952705636, -0.14948068182936616, -0.16681296267250384, 0.13692627384443767, -0.11060346272444638, -0.17279186192899942, 0.17193104118235747, 0.07634943637954579, 0.22172312799904664, 0.012904791518601334, 0.2649209342220357, 0.12479072193408766, 0.057448361647071906, 0.1560190861399116, 0.3412428332323378, 0.1060933233582711, 0.031270928262859925, -0.12305600789312104, 0.02718144394351508, 0.012170224969105964] |
712.2928 | Defect-induced ferromagnetism in fullerenes | Based on the ab initio electronic structure calculations the picture of
ferromagnetism in polimerized C60 is proposed which seems to explain the whole
set of controversial experimental data. We have demonstrated that, in contrast
with cubic fullerene, in rhombohedral C60 the segregation of iron atoms is
energetically unprofitable which is a strong argument in favor of intrinsic
character of carbon ferromagnetism which can be caused by vacancies with
unpaired magnetic electrons. It is shown that: (i) energy formation of the
vacancies in the rhombohedral phase of C60 is essentially smaller than in the
cubic phase, (ii) there is a strong ferromagnetic exchange interactions between
carbon cages containing the vacancies, and (iii) the fusion of the magnetic
vacancies into nonmagnetic bivacancy is energetically profitable. The latter
can explain a fragility of the ferromagnetism.
| cond-mat.mtrl-sci | based on the ab initio electronic structure calculations the picture of ferromagnetism in polimerized c60 is proposed which seems to explain the whole set of controversial experimental data we have demonstrated that in contrast with cubic fullerene in rhombohedral c60 the segregation of iron atoms is energetically unprofitable which is a strong argument in favor of intrinsic character of carbon ferromagnetism which can be caused by vacancies with unpaired magnetic electrons it is shown that i energy formation of the vacancies in the rhombohedral phase of c60 is essentially smaller than in the cubic phase ii there is a strong ferromagnetic exchange interactions between carbon cages containing the vacancies and iii the fusion of the magnetic vacancies into nonmagnetic bivacancy is energetically profitable the latter can explain a fragility of the ferromagnetism | [['based', 'on', 'the', 'ab', 'initio', 'electronic', 'structure', 'calculations', 'the', 'picture', 'of', 'ferromagnetism', 'in', 'polimerized', 'c60', 'is', 'proposed', 'which', 'seems', 'to', 'explain', 'the', 'whole', 'set', 'of', 'controversial', 'experimental', 'data', 'we', 'have', 'demonstrated', 'that', 'in', 'contrast', 'with', 'cubic', 'fullerene', 'in', 'rhombohedral', 'c60', 'the', 'segregation', 'of', 'iron', 'atoms', 'is', 'energetically', 'unprofitable', 'which', 'is', 'a', 'strong', 'argument', 'in', 'favor', 'of', 'intrinsic', 'character', 'of', 'carbon', 'ferromagnetism', 'which', 'can', 'be', 'caused', 'by', 'vacancies', 'with', 'unpaired', 'magnetic', 'electrons', 'it', 'is', 'shown', 'that', 'i', 'energy', 'formation', 'of', 'the', 'vacancies', 'in', 'the', 'rhombohedral', 'phase', 'of', 'c60', 'is', 'essentially', 'smaller', 'than', 'in', 'the', 'cubic', 'phase', 'ii', 'there', 'is', 'a', 'strong', 'ferromagnetic', 'exchange', 'interactions', 'between', 'carbon', 'cages', 'containing', 'the', 'vacancies', 'and', 'iii', 'the', 'fusion', 'of', 'the', 'magnetic', 'vacancies', 'into', 'nonmagnetic', 'bivacancy', 'is', 'energetically', 'profitable', 'the', 'latter', 'can', 'explain', 'a', 'fragility', 'of', 'the', 'ferromagnetism']] | [-0.12227752869362225, 0.18733436053526367, -0.011582356984709311, 0.04993365495199096, -0.014342761891787403, -0.12871967856452324, 0.09971566014844953, 0.4410895110598502, -0.23764847543886827, -0.26091294799654086, -0.04283068712822069, -0.32785720405886876, -0.10491130372708421, 0.06677150156860816, 0.02528025871782585, -0.09821393773073459, 0.024396275532723385, -0.035770787292280955, -0.050199570041860785, -0.25165382414195997, 0.2585975483827691, 0.04332394394241558, 0.30189995571459066, 0.13643199962009284, -0.015109732419159975, -0.051709007455803854, 0.12386587488230404, 0.04243986483108793, -0.11467448517536649, 0.12679335553170615, 0.23911374037417063, -0.07032287560531315, 0.21131087118894828, -0.48035549038829184, -0.1846515727824823, 0.04739424063760133, 0.13302387028065232, 0.1656456244336299, -0.09876707221562654, -0.2617166012895244, 0.0805348417648818, -0.11529981387416541, -0.10306737145394769, -0.06915274969806881, 0.03294053290906639, 0.007670628916443759, -0.25855228835796823, 0.12295184783523774, 0.08517476927688103, 0.06599630075030319, -0.15714558644063828, -0.13087885981809547, -0.14207589374464147, -0.01594451365757819, 0.061414068573659275, 0.04790699025544957, 0.15615188704362806, -0.05669176914082229, -0.09721956096362067, 0.45335718124877405, -0.004231377930104029, -0.05839377576982929, 0.18208301970415272, -0.1725921229964108, -0.1100198618662437, 0.21606473891039643, 0.03152866254094988, 0.08771003903252364, -0.12701997459547965, 0.09846810678700839, -0.03378373747762605, 0.19869155567565946, 0.03659642733036334, 0.047450230787472646, 0.24412769854836563, 0.23518764935718237, 0.04131897056354423, 0.13305866523407656, -0.12044356661166228, -0.07692484245884396, -0.17309470937537555, -0.198637017404362, -0.24126677674362224, 0.04585833952296525, -0.07519667664929809, -0.22443462301197617, 0.3469584154192614, 0.11103063419404376, 0.1430405482280118, -0.15674614611007132, 0.21431454366343167, 0.04659005676723665, 0.11312945156521698, -0.0038361758356274082, 0.2777024793744315, 0.15746671300317439, 0.061664026570044286, -0.2671692410007631, 0.1521672205110827, 0.02155188438864709] |
712.2929 | Attractive nearest-neighbor spin systems on the integers in a randomly
evolving environment | We consider spin systems on $\Z$ (i.e.\ interacting particle systems on $\Z$
in which each coordinate only has two possible values and only one coordinate
changes in each transition) whose rates are determined by another process,
called a background process. A canonical example is the so called contact
process in randomly evolving environment (CPREE), introduced and analysed by E.
Broman and furthermore studied by J. Steif and the author, where the marginals
of the background process independently evolve as 2-state Markov chains and
determine the recovery rates for a contact process. We prove that under certain
conditions on the rates there are at most two extremal stationary
distributions. The proof follows closely the ideas of Liggett's proof of a
corresponding theorem for spin systems on $\Z$ without a background process.
| math.PR | we consider spin systems on z ie interacting particle systems on z in which each coordinate only has two possible values and only one coordinate changes in each transition whose rates are determined by another process called a background process a canonical example is the so called contact process in randomly evolving environment cpree introduced and analysed by e broman and furthermore studied by j steif and the author where the marginals of the background process independently evolve as 2state markov chains and determine the recovery rates for a contact process we prove that under certain conditions on the rates there are at most two extremal stationary distributions the proof follows closely the ideas of liggetts proof of a corresponding theorem for spin systems on z without a background process | [['we', 'consider', 'spin', 'systems', 'on', 'z', 'ie', 'interacting', 'particle', 'systems', 'on', 'z', 'in', 'which', 'each', 'coordinate', 'only', 'has', 'two', 'possible', 'values', 'and', 'only', 'one', 'coordinate', 'changes', 'in', 'each', 'transition', 'whose', 'rates', 'are', 'determined', 'by', 'another', 'process', 'called', 'a', 'background', 'process', 'a', 'canonical', 'example', 'is', 'the', 'so', 'called', 'contact', 'process', 'in', 'randomly', 'evolving', 'environment', 'cpree', 'introduced', 'and', 'analysed', 'by', 'e', 'broman', 'and', 'furthermore', 'studied', 'by', 'j', 'steif', 'and', 'the', 'author', 'where', 'the', 'marginals', 'of', 'the', 'background', 'process', 'independently', 'evolve', 'as', '2state', 'markov', 'chains', 'and', 'determine', 'the', 'recovery', 'rates', 'for', 'a', 'contact', 'process', 'we', 'prove', 'that', 'under', 'certain', 'conditions', 'on', 'the', 'rates', 'there', 'are', 'at', 'most', 'two', 'extremal', 'stationary', 'distributions', 'the', 'proof', 'follows', 'closely', 'the', 'ideas', 'of', 'liggetts', 'proof', 'of', 'a', 'corresponding', 'theorem', 'for', 'spin', 'systems', 'on', 'z', 'without', 'a', 'background', 'process']] | [-0.12696493640108858, 0.16318192612650523, -0.05897856761722613, 0.05171439545758699, 0.012793507876394446, -0.18900973100374027, 0.06471727573937311, 0.36848729383922363, -0.25707450862558806, -0.22967485155072787, 0.1259442844848661, -0.2580187585811282, -0.10236576961555569, 0.18275115718837653, -0.015133431274263375, 0.016898497621562196, 0.03934609587845761, 0.06698037637397647, -0.03416103939480661, -0.23307719180909123, 0.35403057974907604, 0.034214143803733034, 0.25961103099655514, -0.023298712738323957, 0.169328272145949, 0.07639328747005887, -0.04804079255717265, -0.02029558655610958, -0.1629047158823187, 0.03935272681537895, 0.19838233129301852, 0.0942571022418732, 0.22998367509508663, -0.3591022331902916, -0.18085644693048888, 0.12265417093678212, 0.1158171396976871, 0.08691315834912247, -0.03144769211184205, -0.2787750765966439, 0.07698064620501466, -0.13936860927979844, -0.11726548115527907, -0.014790006008995481, 0.05025958332644646, 0.050452729708753356, -0.26521844657989896, 0.03898797750241997, 0.1334892611575219, 0.03193466522001712, -0.03170886324978499, -0.09709572836453485, -0.05602459040246615, 0.08814971888611137, 0.03999101626100163, 0.03151185101605663, 0.1649329672719157, -0.0957621502791091, -0.14412438966940308, 0.3291086329060585, -0.05497790947051127, -0.22866086986221829, 0.21751944843567764, -0.1346580078933648, -0.17283713461672381, 0.12050126051140386, 0.15757779966021868, 0.1433294578744171, -0.19590502840921628, 0.12689528810428888, -0.008067250960865672, 0.10864540778530055, 0.08128449695488048, -0.02211391230929614, 0.1890085203746377, 0.10127754292140405, 0.06457612913665037, 0.12011691618551926, -0.02953925256278048, -0.13641176307835623, -0.27605209805706676, -0.14818281979235107, -0.2024526932789374, 0.0818561696999728, -0.0719042901889838, -0.14307683685346861, 0.3461116406373506, 0.09602320066999731, 0.26192851789844357, 0.047759508906300506, 0.21061509447497165, 0.12609965919405078, -0.00040673999866658404, 0.07067937999530587, 0.1779819881352199, 0.14693542722749792, 0.06961609189246976, -0.14451000896867278, 0.10944499351921701, 0.09433358395833147] |
712.293 | Recent Result in QCD Thermodynamics from the Lattice | Recent results on QCD thermodynamics are presented. The nature of the T>0
transition is determined, which turns out to be an analytic cross-over. The
absolute scale for this transition is calculated. The results were obtained by
using a Symanzik improved gauge and stout-link improved fermionic action. In
order to approach the continuum limit four different sets of lattice spacings
were used with temporal extensions N_t=4, 6, 8 and 10 (they correspond to
lattice spacings a \sim 0.3, 0.2, 0.15 and 0.12 fm). The equation of state is
determined on N_t=4 and 6 lattices. The importance of the continuum limit for
different results (critical endpoint, colour superconducting phase) at
non-vanishing baryonic densities is discussed.
| hep-lat | recent results on qcd thermodynamics are presented the nature of the t0 transition is determined which turns out to be an analytic crossover the absolute scale for this transition is calculated the results were obtained by using a symanzik improved gauge and stoutlink improved fermionic action in order to approach the continuum limit four different sets of lattice spacings were used with temporal extensions n_t4 6 8 and 10 they correspond to lattice spacings a sim 03 02 015 and 012 fm the equation of state is determined on n_t4 and 6 lattices the importance of the continuum limit for different results critical endpoint colour superconducting phase at nonvanishing baryonic densities is discussed | [['recent', 'results', 'on', 'qcd', 'thermodynamics', 'are', 'presented', 'the', 'nature', 'of', 'the', 't0', 'transition', 'is', 'determined', 'which', 'turns', 'out', 'to', 'be', 'an', 'analytic', 'crossover', 'the', 'absolute', 'scale', 'for', 'this', 'transition', 'is', 'calculated', 'the', 'results', 'were', 'obtained', 'by', 'using', 'a', 'symanzik', 'improved', 'gauge', 'and', 'stoutlink', 'improved', 'fermionic', 'action', 'in', 'order', 'to', 'approach', 'the', 'continuum', 'limit', 'four', 'different', 'sets', 'of', 'lattice', 'spacings', 'were', 'used', 'with', 'temporal', 'extensions', 'n_t4', '6', '8', 'and', '10', 'they', 'correspond', 'to', 'lattice', 'spacings', 'a', 'sim', '03', '02', '015', 'and', '012', 'fm', 'the', 'equation', 'of', 'state', 'is', 'determined', 'on', 'n_t4', 'and', '6', 'lattices', 'the', 'importance', 'of', 'the', 'continuum', 'limit', 'for', 'different', 'results', 'critical', 'endpoint', 'colour', 'superconducting', 'phase', 'at', 'nonvanishing', 'baryonic', 'densities', 'is', 'discussed']] | [-0.09717245011042341, 0.241813504805843, -0.08141719238766659, 0.07102577889284564, 0.011124802835747204, -0.09843666658868634, 0.08939276910922696, 0.4058656889978236, -0.15624849402667146, -0.3012672007821533, 0.12607985665193405, -0.3261546390996504, -0.018765233160383935, 0.13239727537683418, 0.035280430598794356, 0.07726983132203465, 0.015061206464548555, -0.000441387172096071, -0.14315421417442076, -0.26939707278249275, 0.28039058137157585, -0.010093090911519475, 0.29498835067075174, 0.12136453199942093, 0.05747424769915838, -0.0483904247444156, -0.021281706791502975, -0.0024133652110740673, -0.194334952422393, 0.05987243947420533, 0.18229998915406784, -0.04805134855771223, 0.14590960349145848, -0.32138012583260384, -0.18871893496376224, 0.05416956022629036, 0.12899985673025546, 0.0833881044321471, 0.04869061107005496, -0.2826769208139946, 0.11034130683762178, -0.14175381869555706, -0.16972170248977939, -0.08660537911892201, -0.0012976147627985451, -0.04300913949851441, -0.28622126953462057, 0.10667317478497208, -0.002151220457925074, 0.11317153396991501, -0.040488738514610725, -0.21187291747222828, -0.02819332289633102, 0.11516204666329828, 0.0033460381941507215, 0.11686729686334729, 0.12043410732897114, -0.085219781151437, -0.10989701933334622, 0.4190887126873816, -0.06778676077760591, -0.1343410361853873, 0.17266192356231663, -0.16616875058105957, -0.13364119849588096, 0.17131646786016963, 0.1005187016784057, 0.06776948368838222, -0.13523102132191436, 0.07068526845598445, 0.011166557830354544, 0.21082550018358218, 0.09312556608604779, 0.015089275430789036, 0.2174823044848719, 0.15472785197095368, -0.008413060255084944, 0.08949294596172837, -0.08351807790577609, -0.13829427940639116, -0.29613527484172214, -0.02801384863781586, -0.18042515005619653, 0.07508976201823525, -0.1664366802624097, -0.09724531830180297, 0.3431347173234794, 0.16702748399920167, 0.21492081567793425, 0.038255365096667236, 0.18103957368242266, 0.1500005632375194, 0.06938467200318005, 0.016070656340354973, 0.24959148859720579, 0.17179706039327503, 0.1060719856234119, -0.23283908426249347, -0.10104368194274242, 0.12207032986339676] |
712.2931 | Distortion of the p-mode peak profiles by the solar-cycle frequency
shifts: do we need to worry? | We seek to address whether solar-cycle frequency shifts of the Sun's low-l p
modes `distort' the underlying shapes of the mode peaks, when those peaks are
observed in power frequency spectra made from data spanning large fractions, or
more, of the cycle period. We present analytical descriptions of the expected
profiles, and validate the predictions through use of artificial seismic
timeseries data, in which temporal variations of the oscillator frequencies are
introduced. Our main finding is that for the Sun-like frequency shifts the
distortion of the asymmetrical Lorentzian-like profiles is very small, but also
just detectible. Our analysis indicates that by fitting modes to the usual
Lorentzian-like models -- which do not allow for the distortion -- rather than
new models we derive, there is a bias in the mode height and linewidth
parameters that is comparable in size to the observational uncertainties given
by multi-year datasets. Bias in the frequency parameter gives much less cause
for worry, being over an order of magnitude smaller than the corresponding
frequency uncertainties. The distortion discussed in this paper may need to be
considered when multi-year Sun-like asteroseismic datasets are analyzed on
stars showing strong activity cycles.
| astro-ph | we seek to address whether solarcycle frequency shifts of the suns lowl p modes distort the underlying shapes of the mode peaks when those peaks are observed in power frequency spectra made from data spanning large fractions or more of the cycle period we present analytical descriptions of the expected profiles and validate the predictions through use of artificial seismic timeseries data in which temporal variations of the oscillator frequencies are introduced our main finding is that for the sunlike frequency shifts the distortion of the asymmetrical lorentzianlike profiles is very small but also just detectible our analysis indicates that by fitting modes to the usual lorentzianlike models which do not allow for the distortion rather than new models we derive there is a bias in the mode height and linewidth parameters that is comparable in size to the observational uncertainties given by multiyear datasets bias in the frequency parameter gives much less cause for worry being over an order of magnitude smaller than the corresponding frequency uncertainties the distortion discussed in this paper may need to be considered when multiyear sunlike asteroseismic datasets are analyzed on stars showing strong activity cycles | [['we', 'seek', 'to', 'address', 'whether', 'solarcycle', 'frequency', 'shifts', 'of', 'the', 'suns', 'lowl', 'p', 'modes', 'distort', 'the', 'underlying', 'shapes', 'of', 'the', 'mode', 'peaks', 'when', 'those', 'peaks', 'are', 'observed', 'in', 'power', 'frequency', 'spectra', 'made', 'from', 'data', 'spanning', 'large', 'fractions', 'or', 'more', 'of', 'the', 'cycle', 'period', 'we', 'present', 'analytical', 'descriptions', 'of', 'the', 'expected', 'profiles', 'and', 'validate', 'the', 'predictions', 'through', 'use', 'of', 'artificial', 'seismic', 'timeseries', 'data', 'in', 'which', 'temporal', 'variations', 'of', 'the', 'oscillator', 'frequencies', 'are', 'introduced', 'our', 'main', 'finding', 'is', 'that', 'for', 'the', 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712.2932 | Uniqueness, intractability and exact algorithms: reflections on level-k
phylogenetic networks | Phylogenetic networks provide a way to describe and visualize evolutionary
histories that have undergone so-called reticulate evolutionary events such as
recombination, hybridization or horizontal gene transfer. The level k of a
network determines how non-treelike the evolution can be, with level-0 networks
being trees. We study the problem of constructing level-k phylogenetic networks
from triplets, i.e. phylogenetic trees for three leaves (taxa). We give, for
each k, a level-k network that is uniquely defined by its triplets. We
demonstrate the applicability of this result by using it to prove that (1) for
all k of at least one it is NP-hard to construct a level-k network consistent
with all input triplets, and (2) for all k it is NP-hard to construct a level-k
network consistent with a maximum number of input triplets, even when the input
is dense. As a response to this intractability we give an exact algorithm for
constructing level-1 networks consistent with a maximum number of input
triplets.
| q-bio.PE | phylogenetic networks provide a way to describe and visualize evolutionary histories that have undergone socalled reticulate evolutionary events such as recombination hybridization or horizontal gene transfer the level k of a network determines how nontreelike the evolution can be with level0 networks being trees we study the problem of constructing levelk phylogenetic networks from triplets ie phylogenetic trees for three leaves taxa we give for each k a levelk network that is uniquely defined by its triplets we demonstrate the applicability of this result by using it to prove that 1 for all k of at least one it is nphard to construct a levelk network consistent with all input triplets and 2 for all k it is nphard to construct a levelk network consistent with a maximum number of input triplets even when the input is dense as a response to this intractability we give an exact algorithm for constructing level1 networks consistent with a maximum number of input triplets | [['phylogenetic', 'networks', 'provide', 'a', 'way', 'to', 'describe', 'and', 'visualize', 'evolutionary', 'histories', 'that', 'have', 'undergone', 'socalled', 'reticulate', 'evolutionary', 'events', 'such', 'as', 'recombination', 'hybridization', 'or', 'horizontal', 'gene', 'transfer', 'the', 'level', 'k', 'of', 'a', 'network', 'determines', 'how', 'nontreelike', 'the', 'evolution', 'can', 'be', 'with', 'level0', 'networks', 'being', 'trees', 'we', 'study', 'the', 'problem', 'of', 'constructing', 'levelk', 'phylogenetic', 'networks', 'from', 'triplets', 'ie', 'phylogenetic', 'trees', 'for', 'three', 'leaves', 'taxa', 'we', 'give', 'for', 'each', 'k', 'a', 'levelk', 'network', 'that', 'is', 'uniquely', 'defined', 'by', 'its', 'triplets', 'we', 'demonstrate', 'the', 'applicability', 'of', 'this', 'result', 'by', 'using', 'it', 'to', 'prove', 'that', '1', 'for', 'all', 'k', 'of', 'at', 'least', 'one', 'it', 'is', 'nphard', 'to', 'construct', 'a', 'levelk', 'network', 'consistent', 'with', 'all', 'input', 'triplets', 'and', '2', 'for', 'all', 'k', 'it', 'is', 'nphard', 'to', 'construct', 'a', 'levelk', 'network', 'consistent', 'with', 'a', 'maximum', 'number', 'of', 'input', 'triplets', 'even', 'when', 'the', 'input', 'is', 'dense', 'as', 'a', 'response', 'to', 'this', 'intractability', 'we', 'give', 'an', 'exact', 'algorithm', 'for', 'constructing', 'level1', 'networks', 'consistent', 'with', 'a', 'maximum', 'number', 'of', 'input', 'triplets']] | [-0.12305331201963589, 0.11032158305649052, -0.029450963873138523, 0.10456656450145409, -0.06282283084305085, -0.15690937482965936, 0.05189300361985119, 0.39168227973006525, -0.2814787402401985, -0.3198150678289048, 0.07127082600078968, -0.25413911614960394, -0.1962832024549452, 0.12017826238352088, -0.03186195025796082, -0.002995707199153901, 0.11671489536160638, 0.07456424968445136, -0.004232410471655012, -0.2616120436408135, 0.3287221077852738, 0.01219867560318353, 0.2137229309564815, -0.01845553019864959, 0.140332986109005, -0.003413012419011652, 0.019114825423005737, 0.05359558560972258, -0.10876027557499791, 0.12006730692365687, 0.3168259247420182, 0.2520960194350839, 0.23359103458326147, -0.36998725810915417, -0.21100630494765937, 0.18238519818481544, 0.141999291254624, 0.14472513905616466, 0.016789630698965666, -0.1989001848977869, 0.16407443689303877, -0.12851845578909477, -0.07110881778810706, -0.07133378205612673, 0.050204423701633576, -0.010294426500114688, -0.29420516380218803, 0.019154791714426894, 0.045870487633167034, 0.03209206401168004, 0.0039046659497312783, -0.1431811404102106, -0.07373904418894407, 0.15723116125897735, -0.017997782776835055, 0.06786897016334151, 0.06023686802627878, -0.10772691433526205, -0.1677571292388143, 0.34109266296098506, -0.04244970472280792, -0.18713595695585383, 0.1877721127249902, -0.06003312863733457, -0.18333645923618483, 0.13142920145204562, 0.1424361229584963, 0.13501143419062314, -0.18186213393011982, 0.038696571307470846, -0.06458209205696487, 0.15832796958723447, 0.07882172848468195, -0.01798756038538695, 0.2108979071967697, 0.22238781878880878, 0.11125608582066962, 0.1475240673735356, -0.05553344539106355, -0.04957094141831679, -0.22995666970400522, -0.11077684436285556, -0.17514828630789583, 0.06646986418513592, -0.12508647210056523, -0.2094915988883987, 0.3969333331499781, 0.1532306731505007, 0.2815500279564572, 0.17056239354106026, 0.2450026587889709, 0.06935024092997777, 0.07834296222047313, 0.11113047006869724, 0.1157160473854414, 0.1462777340350823, 0.017670177822782202, -0.17561230963379468, 0.10034364619818718, 0.07286027261715451] |
712.2933 | Radiative Neutrino Mass, Dark Matter and Leptogenesis | We propose an extension of the standard model, in which neutrinos are Dirac
particles and their tiny masses originate from a one-loop radiative diagram.
The new fields required by the neutrino mass-generation also accommodate the
explanation for the matter-antimatter asymmetry and dark matter in the
universe.
| hep-ph | we propose an extension of the standard model in which neutrinos are dirac particles and their tiny masses originate from a oneloop radiative diagram the new fields required by the neutrino massgeneration also accommodate the explanation for the matterantimatter asymmetry and dark matter in the universe | [['we', 'propose', 'an', 'extension', 'of', 'the', 'standard', 'model', 'in', 'which', 'neutrinos', 'are', 'dirac', 'particles', 'and', 'their', 'tiny', 'masses', 'originate', 'from', 'a', 'oneloop', 'radiative', 'diagram', 'the', 'new', 'fields', 'required', 'by', 'the', 'neutrino', 'massgeneration', 'also', 'accommodate', 'the', 'explanation', 'for', 'the', 'matterantimatter', 'asymmetry', 'and', 'dark', 'matter', 'in', 'the', 'universe']] | [-0.08374483535147231, 0.26816379434065946, -0.05946242629104982, 0.23006772120361743, -0.08923110888218103, -0.08506162329981833, 0.02327614504358043, 0.2781728694782309, -0.22329811547356454, -0.36999379960901063, -0.023907291341026354, -0.254600890689408, -0.054992180317640305, 0.12193287507651131, 0.042688361434873354, -0.0366423149674159, -0.03934753974697188, -0.023286935407668352, -0.022248329568158268, -0.19610989466309547, 0.34116562359723385, 0.05149730939276354, 0.19814598787090051, 0.06798297922005472, 0.08528729471499505, -0.10238058883291871, -0.04012858438427034, -0.09698428033405672, -0.090897688328329, 0.04355490292705919, 0.10874429841161422, 0.09969992586411536, 0.08111239455984501, -0.440198025200516, -0.1949217506157963, 0.22572443389293292, 0.17238643863643316, 0.1541357512115096, -0.1775857289524182, -0.32874815275325725, 0.03615103232795778, -0.22543119145152363, -0.1355516510185502, -0.04971156350296477, -0.08358195836088904, -0.08941279505581959, -0.2738768306925245, 0.12489792753615842, -0.04545526353530991, -0.07128525924180514, -0.04942545583269194, -0.12636323716572445, -0.006703839475369971, 0.028286634833025542, 0.14136872505111134, -0.0421510253344541, 0.11466279679038764, -0.2010934382636586, -0.11948445336083355, 0.5056115495769874, -0.11571728843567974, -0.11897451924565046, 0.10712362878510485, -0.16423532470514107, -0.1057458845898509, 0.15503227295677946, 0.15936399419265596, 0.07626847343762284, -0.20419059782896354, 0.1648402612874001, -0.0825054463930428, 0.10711173478351987, 0.010147618970064365, 0.02790335556694671, 0.39223441748839355, 0.16852641312162514, 0.027876647249997957, -0.007141548138030846, -0.09380486276527138, -0.05315339302583395, -0.41188993118703365, -0.1779217897489181, -0.11427746933844427, -0.006055819984201504, -0.10318657666705447, -0.13190913471676732, 0.43513626548583095, 0.1757708463574881, 0.2171463306142908, 0.006422839018657965, 0.30147667666492256, 0.06462075484349676, 0.09551888511455416, 0.05855269705795724, 0.3129541281934666, 0.16397950306797968, 0.14632265071344117, -0.261088728110063, -0.014360357551714, 0.057557511943109006] |
712.2934 | The vanishing limit of the square-well fluid: the adhesive hard sphere
model as a reference system | We report a simulation study of the gas-liquid critical point for the
square-well potential, for values of well width delta as small as 0.005 times
the particle diameter sigma. For small delta, the reduced second virial
coefficient at the critical point B_2*c is found to depend linearly on delta.
The observed weak linear dependence is not sufficient to produce any
significant observable effect if the critical temperature T_c is estimated via
a constant B_2*c assumption, due to the highly non linear transformation
between B_2*c and T_c. This explains the previously observed validity of the
law of corresponding states. The critical density rho_c is also found to be
constant when measured in units of the cubed average distance between two
bonded particles (1+0.5 delta)/sigma. The possibility of describing the delta
-> 0 dependence with precise functional forms provides improved acccurate
estimates of the critical parameters of the adhesive hard-sphere AHS model.
| cond-mat.soft cond-mat.stat-mech | we report a simulation study of the gasliquid critical point for the squarewell potential for values of well width delta as small as 0005 times the particle diameter sigma for small delta the reduced second virial coefficient at the critical point b_2c is found to depend linearly on delta the observed weak linear dependence is not sufficient to produce any significant observable effect if the critical temperature t_c is estimated via a constant b_2c assumption due to the highly non linear transformation between b_2c and t_c this explains the previously observed validity of the law of corresponding states the critical density rho_c is also found to be constant when measured in units of the cubed average distance between two bonded particles 105 deltasigma the possibility of describing the delta 0 dependence with precise functional forms provides improved acccurate estimates of the critical parameters of the adhesive hardsphere ahs model | [['we', 'report', 'a', 'simulation', 'study', 'of', 'the', 'gasliquid', 'critical', 'point', 'for', 'the', 'squarewell', 'potential', 'for', 'values', 'of', 'well', 'width', 'delta', 'as', 'small', 'as', '0005', 'times', 'the', 'particle', 'diameter', 'sigma', 'for', 'small', 'delta', 'the', 'reduced', 'second', 'virial', 'coefficient', 'at', 'the', 'critical', 'point', 'b_2c', 'is', 'found', 'to', 'depend', 'linearly', 'on', 'delta', 'the', 'observed', 'weak', 'linear', 'dependence', 'is', 'not', 'sufficient', 'to', 'produce', 'any', 'significant', 'observable', 'effect', 'if', 'the', 'critical', 'temperature', 't_c', 'is', 'estimated', 'via', 'a', 'constant', 'b_2c', 'assumption', 'due', 'to', 'the', 'highly', 'non', 'linear', 'transformation', 'between', 'b_2c', 'and', 't_c', 'this', 'explains', 'the', 'previously', 'observed', 'validity', 'of', 'the', 'law', 'of', 'corresponding', 'states', 'the', 'critical', 'density', 'rho_c', 'is', 'also', 'found', 'to', 'be', 'constant', 'when', 'measured', 'in', 'units', 'of', 'the', 'cubed', 'average', 'distance', 'between', 'two', 'bonded', 'particles', '105', 'deltasigma', 'the', 'possibility', 'of', 'describing', 'the', 'delta', '0', 'dependence', 'with', 'precise', 'functional', 'forms', 'provides', 'improved', 'acccurate', 'estimates', 'of', 'the', 'critical', 'parameters', 'of', 'the', 'adhesive', 'hardsphere', 'ahs', 'model']] | [-0.1319758235109695, 0.18156392956168185, -0.046514588136275944, 0.037978379448857034, -0.029819018382504083, -0.16239502377833095, 0.07133314397573572, 0.3045434748891416, -0.2527213604939514, -0.30859203703839005, 0.040485157486795126, -0.30212388212023766, -0.08647097243096104, 0.18341181261211809, 0.03795125519219261, 0.0706943079084822, -0.022028030832329352, 0.07580521111782865, -0.11116136870371965, -0.1918091720826424, 0.28124225390574975, 0.05856067551793718, 0.2539569292742534, 0.12410654666546057, 0.08549077570088358, -0.021116899532709746, 0.03391459873477434, 0.038065233674125384, -0.2176071123341911, 0.010585416704119378, 0.1946976409844926, -0.009451377824348892, 0.22169733137492365, -0.3376581241320444, -0.17855807284718292, 0.13235639692940468, 0.11128823920434354, 0.049317288950035634, 0.011186588945448548, -0.23770599114089805, 0.09728588776869211, -0.11499781956608664, -0.18996697343774463, -0.014852888513381448, 0.08483929383324697, 0.04218514032830678, -0.2743104370842194, 0.1771621459346894, 0.020077402026067493, 0.052581043787974076, -0.0634932141155692, -0.14934257388539962, -0.03432724883798635, 0.08652977395944153, 0.05371391414367788, 0.06894000393851041, 0.17032537410260748, -0.10803377763805723, 6.642295422670026e-05, 0.37532818296161674, -0.093750332916568, -0.161986261087426, 0.14834213161203486, -0.18436396115103224, -0.09136014883625228, 0.13987304619669713, 0.11574469267346915, 0.07589027753058585, -0.11524817446020554, 0.08529871368691663, 0.003757556602702595, 0.22812417404133914, 0.06583247953813348, -0.005000382611815561, 0.18526088789530448, 0.16147238380922593, 0.06791550627106413, 0.11358894750900916, -0.10320886154815355, -0.0849427691013896, -0.30763824716610394, -0.12743429656784305, -0.17753073840242678, 0.05615471823044487, -0.1721243294386229, -0.18315527694524053, 0.30966437547998943, 0.12025937252996752, 0.25107057602613564, 0.06509704096242785, 0.22822437375071364, 0.17490064260517027, 0.0625025649280006, 0.05473819638183653, 0.27822081505902263, 0.16167890052967424, 0.07920116948701392, -0.24864849541824618, 0.09654494264825629, 0.0444674974837928] |
712.2935 | Fidelity of optimally controlled quantum gates with randomly coupled
multiparticle environments | This work studies the feasibility of optimal control of high-fidelity quantum
gates in a model of interacting two-level particles. One particle (the qubit)
serves as the quantum information processor, whose evolution is controlled by a
time-dependent external field. The other particles are not directly controlled
and serve as an effective environment, coupling to which is the source of
decoherence. The control objective is to generate target one-qubit gates in the
presence of strong environmentally-induced decoherence and under physically
motivated restrictions on the control field. It is found that interactions
among the environmental particles have a negligible effect on the gate fidelity
and require no additional adjustment of the control field. Another interesting
result is that optimally controlled quantum gates are remarkably robust to
random variations in qubit-environment and inter-environment coupling
strengths. These findings demonstrate the utility of optimal control for
management of quantum-information systems in a very precise and specific
manner, especially when the dynamics complexity is exacerbated by inherently
uncertain environmental coupling.
| quant-ph | this work studies the feasibility of optimal control of highfidelity quantum gates in a model of interacting twolevel particles one particle the qubit serves as the quantum information processor whose evolution is controlled by a timedependent external field the other particles are not directly controlled and serve as an effective environment coupling to which is the source of decoherence the control objective is to generate target onequbit gates in the presence of strong environmentallyinduced decoherence and under physically motivated restrictions on the control field it is found that interactions among the environmental particles have a negligible effect on the gate fidelity and require no additional adjustment of the control field another interesting result is that optimally controlled quantum gates are remarkably robust to random variations in qubitenvironment and interenvironment coupling strengths these findings demonstrate the utility of optimal control for management of quantuminformation systems in a very precise and specific manner especially when the dynamics complexity is exacerbated by inherently uncertain environmental coupling | [['this', 'work', 'studies', 'the', 'feasibility', 'of', 'optimal', 'control', 'of', 'highfidelity', 'quantum', 'gates', 'in', 'a', 'model', 'of', 'interacting', 'twolevel', 'particles', 'one', 'particle', 'the', 'qubit', 'serves', 'as', 'the', 'quantum', 'information', 'processor', 'whose', 'evolution', 'is', 'controlled', 'by', 'a', 'timedependent', 'external', 'field', 'the', 'other', 'particles', 'are', 'not', 'directly', 'controlled', 'and', 'serve', 'as', 'an', 'effective', 'environment', 'coupling', 'to', 'which', 'is', 'the', 'source', 'of', 'decoherence', 'the', 'control', 'objective', 'is', 'to', 'generate', 'target', 'onequbit', 'gates', 'in', 'the', 'presence', 'of', 'strong', 'environmentallyinduced', 'decoherence', 'and', 'under', 'physically', 'motivated', 'restrictions', 'on', 'the', 'control', 'field', 'it', 'is', 'found', 'that', 'interactions', 'among', 'the', 'environmental', 'particles', 'have', 'a', 'negligible', 'effect', 'on', 'the', 'gate', 'fidelity', 'and', 'require', 'no', 'additional', 'adjustment', 'of', 'the', 'control', 'field', 'another', 'interesting', 'result', 'is', 'that', 'optimally', 'controlled', 'quantum', 'gates', 'are', 'remarkably', 'robust', 'to', 'random', 'variations', 'in', 'qubitenvironment', 'and', 'interenvironment', 'coupling', 'strengths', 'these', 'findings', 'demonstrate', 'the', 'utility', 'of', 'optimal', 'control', 'for', 'management', 'of', 'quantuminformation', 'systems', 'in', 'a', 'very', 'precise', 'and', 'specific', 'manner', 'especially', 'when', 'the', 'dynamics', 'complexity', 'is', 'exacerbated', 'by', 'inherently', 'uncertain', 'environmental', 'coupling']] | [-0.18280320891673552, 0.18842481058401725, -0.04097387135024527, 0.04923264865683001, -0.027640021700745473, -0.2231536159797767, 0.06336069484686847, 0.3897639463575166, -0.25394690052870617, -0.34344816309066467, 0.08029743478300026, -0.22082505405616062, -0.12473301854226049, 0.23265483059825515, -0.06830229381973177, 0.07579813645232791, 0.028567302129863772, 0.015003318070537515, -0.008376487383452232, -0.23478865387625303, 0.27584969738417847, 0.07272932632397976, 0.29136040269822616, 0.0320317334417156, 0.09913799494295093, 0.02079076035793319, 0.028788984562579348, 0.0001300941710072903, -0.04645373334687413, 0.08908209044135601, 0.25764052696180395, 0.07333830998704573, 0.28984097776831025, -0.4389942490760191, -0.2088528500487568, 0.07051863700847061, 0.11117914873520257, 0.1695056114436334, -0.08474498223599598, -0.29455732627208403, 0.010170672221086275, -0.1343463557789585, -0.08773608723052427, -0.09025833550495682, 0.02259401405405506, 0.011144255287226658, -0.3121349397144154, 0.04030964174792947, 0.05993663239649233, 0.04871574447225825, -0.028250385960420295, -0.004744662049536903, 0.0070548514622827, 0.1565744901181236, -0.0054925364121668225, 0.036111981837211156, 0.24176462602989898, -0.15841380152585458, -0.13200021601270562, 0.3684131461253137, -0.040169969665312014, -0.24297205404160016, 0.1880183372658068, -0.07637781034982591, -0.09608608388117756, 0.08638752831353082, 0.1538625417193139, 0.08728324471869403, -0.1942050745499638, 0.08361031048475581, 0.016040927750621863, 0.20257857883777355, -0.002245179529842219, 0.12162693149775243, 0.20554315451716568, 0.1519364342941431, 0.11366872253603544, 0.16576647867964592, -0.025367778349368843, -0.16036255491242088, -0.29823561939468357, -0.11766999764267332, -0.21313427023612608, 0.07178945899921266, -0.0772589642986947, -0.13629990673687217, 0.3802796893114983, 0.18870402406191492, 0.1552218387167855, -0.014115605485355367, 0.3150456745384468, 0.12435162067557053, 0.0789269522137158, 0.030073864453888634, 0.25953554934074663, 0.1497261008882987, 0.04669033933752849, -0.3204480841192474, 0.11185012977098885, -0.06653899973384853] |
712.2936 | A new effective interaction for $0\hbar\omega$ shell model calculations
in the sdpf valence space | The neutron rich isotopes with Z<20, in particular those with neutron numbers
around N=28,have been at the focus of a lot experimental and theoretical
scrutiny during the last few years.Shell model calculations using the effective
interaction SDPF-NR, were able to predictor to explain most of the properties
featured by these nuclei. Prominent among them is the disappearance of the N=28
shell closure for Z<=16. We have incorporated to SDPF-NR some modifications,
either on purely theoretical grounds or guided by new experimental information.
The proposed interaction, SDPF-U, contains USD as its sd-shell part and KB3G as
its pf-shell-part. Its range of applicability is enlarged and its reliability
enhanced with respect to the earlier version.
| nucl-th nucl-ex | the neutron rich isotopes with z20 in particular those with neutron numbers around n28have been at the focus of a lot experimental and theoretical scrutiny during the last few yearsshell model calculations using the effective interaction sdpfnr were able to predictor to explain most of the properties featured by these nuclei prominent among them is the disappearance of the n28 shell closure for z16 we have incorporated to sdpfnr some modifications either on purely theoretical grounds or guided by new experimental information the proposed interaction sdpfu contains usd as its sdshell part and kb3g as its pfshellpart its range of applicability is enlarged and its reliability enhanced with respect to the earlier version | [['the', 'neutron', 'rich', 'isotopes', 'with', 'z20', 'in', 'particular', 'those', 'with', 'neutron', 'numbers', 'around', 'n28have', 'been', 'at', 'the', 'focus', 'of', 'a', 'lot', 'experimental', 'and', 'theoretical', 'scrutiny', 'during', 'the', 'last', 'few', 'yearsshell', 'model', 'calculations', 'using', 'the', 'effective', 'interaction', 'sdpfnr', 'were', 'able', 'to', 'predictor', 'to', 'explain', 'most', 'of', 'the', 'properties', 'featured', 'by', 'these', 'nuclei', 'prominent', 'among', 'them', 'is', 'the', 'disappearance', 'of', 'the', 'n28', 'shell', 'closure', 'for', 'z16', 'we', 'have', 'incorporated', 'to', 'sdpfnr', 'some', 'modifications', 'either', 'on', 'purely', 'theoretical', 'grounds', 'or', 'guided', 'by', 'new', 'experimental', 'information', 'the', 'proposed', 'interaction', 'sdpfu', 'contains', 'usd', 'as', 'its', 'sdshell', 'part', 'and', 'kb3g', 'as', 'its', 'pfshellpart', 'its', 'range', 'of', 'applicability', 'is', 'enlarged', 'and', 'its', 'reliability', 'enhanced', 'with', 'respect', 'to', 'the', 'earlier', 'version']] | [-0.03729559553109787, 0.1016198148204818, -0.06148151869737459, 0.08783328787381338, -0.07109210495413705, -0.10479783731174062, 0.058651583226905626, 0.37805613460527226, -0.19042449213924226, -0.3280553008413831, 0.06872704339277169, -0.3329572561704977, -0.06944355761674656, 0.17379019141239538, 0.009882129677994685, 0.01915076625088907, 0.04448090248466046, 0.06908033456738022, -0.08354878450574522, -0.2329232429154217, 0.2839552677067166, 0.1203818489628082, 0.22421280985105443, 0.06360543825324963, 0.012039460643956607, -0.0018135293513875117, -0.009498428807339886, 0.007385652704926377, -0.11046456984159621, 0.12565606206824834, 0.22322407411305573, 0.10303458988624202, 0.24747809617864816, -0.45672708416188307, -0.2116341777688252, 0.06144285767169839, 0.12964224784042347, 0.09282097203911029, -0.07943583069983023, -0.2981735913993113, 0.09250033210238061, -0.2406114743345163, -0.14251508853313596, -0.09938787948340178, 0.03367644837126136, 0.04375913326035846, -0.17899504894898696, 0.031639589155780745, 0.019144862911409953, 0.06465364261682473, -0.0807380804262886, -0.18139656459573994, -0.030627477710897272, 0.0804872466695749, 0.09988494588548995, 0.02688889108936895, 0.13004106176509098, -0.11418913121689746, -0.07386606626466594, 0.39419190771877766, -0.02409202410543168, -0.0969746034338393, 0.20931720655750144, -0.13983533492057837, -0.14956086254255338, 0.16215385926294734, 0.11013214652087878, 0.09378305820070884, -0.11839322251352397, 0.05593659907251342, -0.019360221687450326, 0.15764472563327714, 0.027895350415598263, 0.042545238552107054, 0.1962443303337998, 0.2124811927258799, -0.05887761480725286, 0.09167499505830082, -0.10581866101472935, -0.12847460457547144, -0.27044286926869643, -0.06602722204036333, -0.12444910818329928, -0.0005738934078677134, -0.04477494401309576, -0.10470208784337791, 0.3840450822799043, 0.10773590230144857, 0.1868946968425007, -0.006743669801984321, 0.2648856130216948, 0.05204800831958313, 0.10561112886802716, 0.023488688257268884, 0.3138635179676137, 0.1722946663450619, 0.07716966209171171, -0.21941307794980028, 0.0948565592565997, 0.02457845226692205] |
712.2937 | Spectropolarimetry of a decaying sunspot penumbra | We report on high angular resolution, high precision spectropolarimetric
measurements of a decaying sunspot. The spot gradually lost its penumbra during
the course of three days. In the late stages of evolution where the only
remnant of the spot is a naked umbra, we find small-scale inhomogeneities in
the magnetic canopy surrounding it. The inhomogeneities are observed as
finger-like structures of weak and nearly horizontal magnetic fields extending
1-2 arcsec from the outer border of the umbra. These fields are not associated
with filamentary structures in continuum intensity, nor with conspicuous
Evershed flows. The Stokes profiles emerging from the fingers exhibit
blueshifts which we interpret as upward motions. This previously unknown fine
structure may be related to penumbral field lines that no longer carry strong
Evershed flows and rise to the chromosphere, producing the disappearance of the
penumbra at photospheric levels.
| astro-ph | we report on high angular resolution high precision spectropolarimetric measurements of a decaying sunspot the spot gradually lost its penumbra during the course of three days in the late stages of evolution where the only remnant of the spot is a naked umbra we find smallscale inhomogeneities in the magnetic canopy surrounding it the inhomogeneities are observed as fingerlike structures of weak and nearly horizontal magnetic fields extending 12 arcsec from the outer border of the umbra these fields are not associated with filamentary structures in continuum intensity nor with conspicuous evershed flows the stokes profiles emerging from the fingers exhibit blueshifts which we interpret as upward motions this previously unknown fine structure may be related to penumbral field lines that no longer carry strong evershed flows and rise to the chromosphere producing the disappearance of the penumbra at photospheric levels | [['we', 'report', 'on', 'high', 'angular', 'resolution', 'high', 'precision', 'spectropolarimetric', 'measurements', 'of', 'a', 'decaying', 'sunspot', 'the', 'spot', 'gradually', 'lost', 'its', 'penumbra', 'during', 'the', 'course', 'of', 'three', 'days', 'in', 'the', 'late', 'stages', 'of', 'evolution', 'where', 'the', 'only', 'remnant', 'of', 'the', 'spot', 'is', 'a', 'naked', 'umbra', 'we', 'find', 'smallscale', 'inhomogeneities', 'in', 'the', 'magnetic', 'canopy', 'surrounding', 'it', 'the', 'inhomogeneities', 'are', 'observed', 'as', 'fingerlike', 'structures', 'of', 'weak', 'and', 'nearly', 'horizontal', 'magnetic', 'fields', 'extending', '12', 'arcsec', 'from', 'the', 'outer', 'border', 'of', 'the', 'umbra', 'these', 'fields', 'are', 'not', 'associated', 'with', 'filamentary', 'structures', 'in', 'continuum', 'intensity', 'nor', 'with', 'conspicuous', 'evershed', 'flows', 'the', 'stokes', 'profiles', 'emerging', 'from', 'the', 'fingers', 'exhibit', 'blueshifts', 'which', 'we', 'interpret', 'as', 'upward', 'motions', 'this', 'previously', 'unknown', 'fine', 'structure', 'may', 'be', 'related', 'to', 'penumbral', 'field', 'lines', 'that', 'no', 'longer', 'carry', 'strong', 'evershed', 'flows', 'and', 'rise', 'to', 'the', 'chromosphere', 'producing', 'the', 'disappearance', 'of', 'the', 'penumbra', 'at', 'photospheric', 'levels']] | [-0.14554394681852126, 0.19934162304650807, -0.03693542979882224, 0.09540771845569636, -0.11319458736713857, -0.04755408930136485, -0.01849881485715535, 0.4352301941418373, -0.2625793593651648, -0.3388565072512373, 0.11034429104790647, -0.24311703214494523, -0.07095550969887049, 0.14859727985417168, -0.012292619312433063, -0.06721916326845118, 0.07556166801046818, -0.011972480364381633, -0.011571351707919586, -0.16368929158354587, 0.294541059459018, 0.10391185856391247, 0.22971314800315346, 0.01062410311581045, 0.03700342988066956, -0.15748730026753555, -0.06571335616316779, 0.05711486078270361, -0.09861399843515407, 0.035171380652947, 0.18238591380311664, 0.0480720790215365, 0.22663641874331664, -0.4860255413206545, -0.22445195486293512, 0.01498438399953847, 0.20650752817432508, 0.0640231467319441, -0.007158475053655182, -0.2886032854200255, 0.08762584298730214, -0.05294901472499845, -0.1454995644893101, 0.04675118578267647, 0.03095314115804376, 0.007488081525641342, -0.1977933616966095, 0.142759723734137, 0.0666789367104755, 0.1788944103391775, -0.09776970310754254, -0.06409871363550002, -0.10231564313516761, 0.13398937444714087, 0.10877612984659983, 0.02788435581226087, 0.17624154308454154, -0.17554323077499073, -0.05175885688084184, 0.3333354549984454, -0.07256236569856868, -0.011977329955878833, 0.16841151404478555, -0.2634638246802732, -0.10126856355003166, 0.2717609911866433, 0.142392581128119, 0.08948967292416074, -0.025563563278204172, -0.019533337936868747, -0.07316165233480064, 0.1655282594770497, 0.13397760354378757, 0.029155739171080396, 0.3291989905852164, 0.07506566433853581, 0.07302353041352215, 0.1213853386381859, -0.26581015048345474, -0.07246240943006457, -0.29817992257010456, -0.11053797455359224, -0.0610241923639749, 0.033763042081528055, -0.09055102018433861, -0.22880159095854413, 0.4054807503047195, 0.11998933664414081, 0.24275939719725056, -0.043454886292741496, 0.2966485578329005, 0.05832916259739204, 0.11275395107330054, 0.1661387474989479, 0.293803149715383, 0.22571023868013781, 0.2449414562533035, -0.22319669929970426, 0.0626580058530977, -0.0019264974109564268] |
712.2938 | Charged lepton and down-type quark masses in SU(1,1) model and the
structure of higgs sector | The simplest noncompact group SU(1,1),when introduced as a symmetry group of
the generations of quarks and leptons in the framework of a vector-like theory,
gives an excellent viewpoint on low energy physics. The minimal setup of the
scheme, however, gives phenomenologically unacceptable prediction on the Yukawa
coupling matrices. This suggests the higgs sector has richer structure than we
expect from the success of MSSM. The natural extension of the scheme, which has
doubled structure in the higgs sector, is formulated. The framework admits this
extension in a restrictive way. The possible patterns of Yukawa couplings are
classified and the expressions of the coupling matrices are presented.
| hep-ph | the simplest noncompact group su11when introduced as a symmetry group of the generations of quarks and leptons in the framework of a vectorlike theory gives an excellent viewpoint on low energy physics the minimal setup of the scheme however gives phenomenologically unacceptable prediction on the yukawa coupling matrices this suggests the higgs sector has richer structure than we expect from the success of mssm the natural extension of the scheme which has doubled structure in the higgs sector is formulated the framework admits this extension in a restrictive way the possible patterns of yukawa couplings are classified and the expressions of the coupling matrices are presented | [['the', 'simplest', 'noncompact', 'group', 'su11when', 'introduced', 'as', 'a', 'symmetry', 'group', 'of', 'the', 'generations', 'of', 'quarks', 'and', 'leptons', 'in', 'the', 'framework', 'of', 'a', 'vectorlike', 'theory', 'gives', 'an', 'excellent', 'viewpoint', 'on', 'low', 'energy', 'physics', 'the', 'minimal', 'setup', 'of', 'the', 'scheme', 'however', 'gives', 'phenomenologically', 'unacceptable', 'prediction', 'on', 'the', 'yukawa', 'coupling', 'matrices', 'this', 'suggests', 'the', 'higgs', 'sector', 'has', 'richer', 'structure', 'than', 'we', 'expect', 'from', 'the', 'success', 'of', 'mssm', 'the', 'natural', 'extension', 'of', 'the', 'scheme', 'which', 'has', 'doubled', 'structure', 'in', 'the', 'higgs', 'sector', 'is', 'formulated', 'the', 'framework', 'admits', 'this', 'extension', 'in', 'a', 'restrictive', 'way', 'the', 'possible', 'patterns', 'of', 'yukawa', 'couplings', 'are', 'classified', 'and', 'the', 'expressions', 'of', 'the', 'coupling', 'matrices', 'are', 'presented']] | [-0.155300483067653, 0.1555043045199931, -0.07567479063845461, 0.1403684211218552, -0.09706038936662177, -0.15854195697853962, 0.03625567986829473, 0.2978595103580682, -0.19521885050371998, -0.307444653456055, 0.029358349351345427, -0.2292555298257087, -0.13160607263534552, 0.11574277759840092, -0.03742622893214936, 0.0144284533425456, 0.02176873470168738, 0.05323933860553162, -0.07126585789789845, -0.24639335194425213, 0.30238146890575685, 0.03260891293840749, 0.275284426783522, 0.06692588455708963, 0.11425900336000182, -0.007788184216423404, -0.012293721695563623, -0.07657118915979351, -0.08802580346264655, 0.13890304637496315, 0.18132211489248135, 0.06642773099066246, 0.15781615371594115, -0.37840636092282476, -0.19101380388296785, 0.11963182155575071, 0.13610444966526258, 0.1132123289053284, -0.0687300057305644, -0.29761529277477944, 0.06956695488521031, -0.23524770651544843, -0.14461401469916815, -0.07364758268619577, -0.06336218349280812, -0.1454372164893097, -0.31292890338338025, 0.06483282617160252, 0.010319509845049608, 0.03175013733229467, 0.008037054210546471, -0.13481722206232094, -0.04587967266284284, 0.05199370911965768, 0.14552370221797553, 0.0024752943865245297, 0.09155379384090857, -0.16964059617769506, -0.1430230181176393, 0.47693123193014236, -0.09034673931545556, -0.2193405632949656, 0.17067926683950993, -0.12938543565438262, -0.1483592960495679, 0.11078623129675785, 0.16104410093809876, 0.09430353491611423, -0.14580296708736568, 0.24066572201000305, -0.1131523018081983, 0.12303739564737216, 0.02387398336792276, 0.06385760317068724, 0.21498736135572905, 0.2118498344683931, 0.07376271347914423, 0.08065759741834232, 0.01127837356845183, -0.12309949066367976, -0.3826309614947864, -0.12820733936414833, -0.09631180238156091, 0.02935022909327277, -0.11439380959712989, -0.1269994657664072, 0.4713453799022578, 0.1071211844327904, 0.19665884631907657, 0.00998788157677544, 0.2459042995037245, 0.08629758388934923, 0.13290752260058764, 0.006814697735188972, 0.2703456107538105, 0.1770725803338878, 0.0688571607960122, -0.183131434287255, 0.004929481792662825, 0.10410404483166834] |
712.2939 | Experimental evidence for a two-gap structure of superconducting NbSe_2:
a specific heat study in external magnetic fields | To resolve the discrepancies of the superconducting order parameter in
quasi-two-dimensional NbSe_2, comprehensive specific-heat measurements have
been carried out. By analyzing both the zero-field and mixed-state data with
magnetic fields perpendicular to and parallel to the c axis of the crystal and
using the two-gap model, we conclude that (1) more than one energy scale of the
order parameter is required for superconducting NbSe_2 due to the thermodynamic
consistency; (2)delta_L=1.26 meV and delta_S=0.73 meV are obtained; (3)
N_S(0)/N(0)=11%~20%; (4) The observation of the kink in gamma(H) curve suggests
that the two-gap scenario is more favorable than the anisotropic s-wave model
to describe the gap structure of NbSe_2; and (5)delta_S is more isotropic and
has a three-dimensional-like feature and is located either on the Se or the
bonding Nb Fermi sheets.
| cond-mat.supr-con | to resolve the discrepancies of the superconducting order parameter in quasitwodimensional nbse_2 comprehensive specificheat measurements have been carried out by analyzing both the zerofield and mixedstate data with magnetic fields perpendicular to and parallel to the c axis of the crystal and using the twogap model we conclude that 1 more than one energy scale of the order parameter is required for superconducting nbse_2 due to the thermodynamic consistency 2delta_l126 mev and delta_s073 mev are obtained 3 n_s0n01120 4 the observation of the kink in gammah curve suggests that the twogap scenario is more favorable than the anisotropic swave model to describe the gap structure of nbse_2 and 5delta_s is more isotropic and has a threedimensionallike feature and is located either on the se or the bonding nb fermi sheets | [['to', 'resolve', 'the', 'discrepancies', 'of', 'the', 'superconducting', 'order', 'parameter', 'in', 'quasitwodimensional', 'nbse_2', 'comprehensive', 'specificheat', 'measurements', 'have', 'been', 'carried', 'out', 'by', 'analyzing', 'both', 'the', 'zerofield', 'and', 'mixedstate', 'data', 'with', 'magnetic', 'fields', 'perpendicular', 'to', 'and', 'parallel', 'to', 'the', 'c', 'axis', 'of', 'the', 'crystal', 'and', 'using', 'the', 'twogap', 'model', 'we', 'conclude', 'that', '1', 'more', 'than', 'one', 'energy', 'scale', 'of', 'the', 'order', 'parameter', 'is', 'required', 'for', 'superconducting', 'nbse_2', 'due', 'to', 'the', 'thermodynamic', 'consistency', '2delta_l126', 'mev', 'and', 'delta_s073', 'mev', 'are', 'obtained', '3', 'n_s0n01120', '4', 'the', 'observation', 'of', 'the', 'kink', 'in', 'gammah', 'curve', 'suggests', 'that', 'the', 'twogap', 'scenario', 'is', 'more', 'favorable', 'than', 'the', 'anisotropic', 'swave', 'model', 'to', 'describe', 'the', 'gap', 'structure', 'of', 'nbse_2', 'and', '5delta_s', 'is', 'more', 'isotropic', 'and', 'has', 'a', 'threedimensionallike', 'feature', 'and', 'is', 'located', 'either', 'on', 'the', 'se', 'or', 'the', 'bonding', 'nb', 'fermi', 'sheets']] | [-0.1700177525792877, 0.13996409828357015, -0.044292640875995395, 0.06475498760303867, -0.07344369115612824, -0.1593378641391321, 0.07868128735479707, 0.3843434483758987, -0.20174522306917916, -0.3029043368758663, 0.024288074871976047, -0.3435640674794004, -0.03883673108944167, 0.19643410215789955, 0.08851854860161741, 0.042051158592267525, -0.010446926312325227, -0.01140666082279668, -0.1166106597575847, -0.2204468680031982, 0.33912819273500067, 0.06837010745786959, 0.3254410113006579, 0.06644148522588823, 0.006110932693691067, -0.049523321466357816, 0.07317600573693948, 0.03771908401644656, -0.15355246208526382, 0.08633296243432495, 0.24615841084492526, -0.060626531159320464, 0.1702836743086606, -0.41820830573874807, -0.211725477450749, 0.04147379194194126, 0.13750084712436156, 0.0892766972575041, 0.017245841344808308, -0.2563662764741965, 0.11084110770625846, -0.1199821847239657, -0.11998727885148829, -0.09181895940786317, -0.015426127657678628, -0.0500859337533632, -0.23740509619782973, 0.12242080036565543, 0.05822094121766794, 0.0964227677766411, -0.07969499125869738, -0.1335677571487539, -0.0583652365982296, -0.003824904289407035, 0.07252269891452873, 0.10211317490283696, 0.11466976257765459, -0.10907593349157463, -0.07069404557391647, 0.376831973126779, -0.026531159248810984, -0.10459819481161142, 0.14785145688617218, -0.1682626818240221, -0.06822024365990526, 0.15347288418256322, 0.06967116981912921, 0.0450714843288537, -0.12831933119949618, 0.07723540627436402, -0.012801095048734357, 0.1983063987914532, 0.03481512940082226, -0.0009024655705110894, 0.2121504835252251, 0.21665160495756444, 0.027413945336500923, 0.10987497363165612, -0.17532114631825288, -0.053541150221246336, -0.24673490408098414, -0.1756490859787889, -0.1911754198132142, 0.02991433746536218, -0.07294529903643591, -0.14469994305973016, 0.3848651850980426, 0.14964883461860673, 0.2304508894208878, -0.06553526063235329, 0.23362154048675346, 0.081108697135711, 0.09013119985955576, 0.07279307534918189, 0.28688350123249823, 0.1486648701090691, 0.11026537667826883, -0.25043190208574134, 0.06578809623089102, -0.03417488084810357] |
712.294 | Stein's method on Wiener chaos | We combine Malliavin calculus with Stein's method, in order to derive
explicit bounds in the Gaussian and Gamma approximations of random variables in
a fixed Wiener chaos of a general Gaussian process. We also prove results
concerning random variables admitting a possibly infinite Wiener chaotic
decomposition. Our approach generalizes, refines and unifies the central and
non-central limit theorems for multiple Wiener-It\^o integrals recently proved
(in several papers, from 2005 to 2007) by Nourdin, Nualart, Ortiz-Latorre,
Peccati and Tudor. We apply our techniques to prove Berry-Ess\'een bounds in
the Breuer-Major CLT for subordinated functionals of fractional Brownian
motion. By using the well-known Mehler's formula for Ornstein-Uhlenbeck
semigroups, we also recover a technical result recently proved by Chatterjee,
concerning the Gaussian approximation of functionals of finite-dimensional
Gaussian vectors.
| math.PR | we combine malliavin calculus with steins method in order to derive explicit bounds in the gaussian and gamma approximations of random variables in a fixed wiener chaos of a general gaussian process we also prove results concerning random variables admitting a possibly infinite wiener chaotic decomposition our approach generalizes refines and unifies the central and noncentral limit theorems for multiple wienerito integrals recently proved in several papers from 2005 to 2007 by nourdin nualart ortizlatorre peccati and tudor we apply our techniques to prove berryesseen bounds in the breuermajor clt for subordinated functionals of fractional brownian motion by using the wellknown mehlers formula for ornsteinuhlenbeck semigroups we also recover a technical result recently proved by chatterjee concerning the gaussian approximation of functionals of finitedimensional gaussian vectors | [['we', 'combine', 'malliavin', 'calculus', 'with', 'steins', 'method', 'in', 'order', 'to', 'derive', 'explicit', 'bounds', 'in', 'the', 'gaussian', 'and', 'gamma', 'approximations', 'of', 'random', 'variables', 'in', 'a', 'fixed', 'wiener', 'chaos', 'of', 'a', 'general', 'gaussian', 'process', 'we', 'also', 'prove', 'results', 'concerning', 'random', 'variables', 'admitting', 'a', 'possibly', 'infinite', 'wiener', 'chaotic', 'decomposition', 'our', 'approach', 'generalizes', 'refines', 'and', 'unifies', 'the', 'central', 'and', 'noncentral', 'limit', 'theorems', 'for', 'multiple', 'wienerito', 'integrals', 'recently', 'proved', 'in', 'several', 'papers', 'from', '2005', 'to', '2007', 'by', 'nourdin', 'nualart', 'ortizlatorre', 'peccati', 'and', 'tudor', 'we', 'apply', 'our', 'techniques', 'to', 'prove', 'berryesseen', 'bounds', 'in', 'the', 'breuermajor', 'clt', 'for', 'subordinated', 'functionals', 'of', 'fractional', 'brownian', 'motion', 'by', 'using', 'the', 'wellknown', 'mehlers', 'formula', 'for', 'ornsteinuhlenbeck', 'semigroups', 'we', 'also', 'recover', 'a', 'technical', 'result', 'recently', 'proved', 'by', 'chatterjee', 'concerning', 'the', 'gaussian', 'approximation', 'of', 'functionals', 'of', 'finitedimensional', 'gaussian', 'vectors']] | [-0.03685577078177298, 0.06787655913152747, -0.1781239558070425, 0.12029650502536819, -0.06312433329580855, -0.10810810772910906, 0.0807047362202808, 0.29179236487973303, -0.26997171696608085, -0.1995596422126428, 0.09733383950965833, -0.25471299173798234, -0.20255301988291893, 0.24743722370522658, -0.20490486842639272, 0.11488105290909371, 0.044747474403785806, -0.03202916148103892, -0.030959717655879637, -0.2840974751632616, 0.28546779002072215, -0.019219298660385586, 0.18971988887873492, -0.024206488026908436, 0.13613547615536917, 0.08786486011249797, -0.15674242346976247, -0.08032386774744188, -0.1974588312496919, 0.13444135533941406, 0.26180266647873124, 0.02104575797131965, 0.32867987303891116, -0.36120709422088804, -0.21657156377350764, 0.1127122894178019, 0.10490933564003735, 0.04794941914253055, 0.0134078466734435, -0.3802898540752866, 0.04443527054085973, -0.16110822835397567, -0.1994454591158068, -0.1312674051483295, 0.03400733530436391, 0.12093682362446709, -0.3788305992160791, 0.14677838877809884, 0.2188426204070094, 0.04200776503051794, -0.03556588827262795, -0.1778117739512319, 0.06142025674732091, 0.0026571741918959314, 0.029641420144120245, -0.009511959613374775, 0.07471625204937207, -0.0012816999787612566, -0.22787149849214725, 0.22514687414975867, -0.12496679292269705, -0.24345709691526338, 0.12585434406840554, -0.17345661623033856, -0.24168878708345196, 0.08199925146376093, 0.13013893361425116, 0.1266869147574263, -0.17786356971214806, 0.20859987856561524, -0.06260741849814261, 0.00977866497955152, 0.1916405172235081, -0.015527500831503569, 0.018292181393397704, 0.04796714540792718, 0.11783789410274328, 0.18447051159409245, -0.041194825739939774, -0.18141669196738225, -0.3125533118528972, -0.14459146556281854, -0.22585874631084382, 0.08669144877358266, -0.20533241084287135, -0.2000736658930749, 0.29329119414268506, 0.14853845828671067, 0.12989491635253506, 0.15490909720981672, 0.2050903449832861, 0.1914674005885091, -0.07610581602738609, 0.11239494401074591, 0.12423737092952554, 0.33774248214017244, 0.10337781399074528, -0.05138555294852556, 0.042459896532818675, 0.22386968450709469] |
712.2941 | Critical behavior of interacting two-polymer system in a fractal
solvent: an exact renormalization group approach | We study the polymer system consisting of two polymer chains situated in a
fractal container that belongs to the three--dimensional Sierpinski Gasket (3D
SG) family of fractals. Each 3D SG fractal has four fractal impenetrable 2D
surfaces, which are, in fact, 2D SG fractals. The two-polymer system is
modelled by two interacting self-avoiding walks (SAWs), one of them
representing a 3D floating polymer, while the other corresponds to a chain
adhered to one of the four 2D SG boundaries. We assume that the studied system
is immersed in a poor solvent inducing the intra-chain interactions. For the
inter-chain interactions we propose two models: in the first model (ASAWs) the
SAW chains are mutually avoiding, whereas in the second model (CSAWs) chains
can cross each other. By applying an exact Renormalization Group (RG) method,
we establish the relevant phase diagrams for $b=2,3$ and $b=4$ members of the
3D SG fractal family for the model with avoiding SAWs, and for $b=2$ and $b=3$
fractals for the model with crossing SAWs. Also, at the appropriate transition
fixed points we calculate the contact critical exponents, associated with the
number of contacts between monomers of different chains. Throughout the paper
we compare results obtained for the two models and discuss the impact of the
topology of the underlying lattices on emerging phase diagrams.
| cond-mat.stat-mech | we study the polymer system consisting of two polymer chains situated in a fractal container that belongs to the threedimensional sierpinski gasket 3d sg family of fractals each 3d sg fractal has four fractal impenetrable 2d surfaces which are in fact 2d sg fractals the twopolymer system is modelled by two interacting selfavoiding walks saws one of them representing a 3d floating polymer while the other corresponds to a chain adhered to one of the four 2d sg boundaries we assume that the studied system is immersed in a poor solvent inducing the intrachain interactions for the interchain interactions we propose two models in the first model asaws the saw chains are mutually avoiding whereas in the second model csaws chains can cross each other by applying an exact renormalization group rg method we establish the relevant phase diagrams for b23 and b4 members of the 3d sg fractal family for the model with avoiding saws and for b2 and b3 fractals for the model with crossing saws also at the appropriate transition fixed points we calculate the contact critical exponents associated with the number of contacts between monomers of different chains throughout the paper we compare results obtained for the two models and discuss the impact of the topology of the underlying lattices on emerging phase diagrams | [['we', 'study', 'the', 'polymer', 'system', 'consisting', 'of', 'two', 'polymer', 'chains', 'situated', 'in', 'a', 'fractal', 'container', 'that', 'belongs', 'to', 'the', 'threedimensional', 'sierpinski', 'gasket', '3d', 'sg', 'family', 'of', 'fractals', 'each', '3d', 'sg', 'fractal', 'has', 'four', 'fractal', 'impenetrable', '2d', 'surfaces', 'which', 'are', 'in', 'fact', '2d', 'sg', 'fractals', 'the', 'twopolymer', 'system', 'is', 'modelled', 'by', 'two', 'interacting', 'selfavoiding', 'walks', 'saws', 'one', 'of', 'them', 'representing', 'a', '3d', 'floating', 'polymer', 'while', 'the', 'other', 'corresponds', 'to', 'a', 'chain', 'adhered', 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'the', 'number', 'of', 'contacts', 'between', 'monomers', 'of', 'different', 'chains', 'throughout', 'the', 'paper', 'we', 'compare', 'results', 'obtained', 'for', 'the', 'two', 'models', 'and', 'discuss', 'the', 'impact', 'of', 'the', 'topology', 'of', 'the', 'underlying', 'lattices', 'on', 'emerging', 'phase', 'diagrams']] | [-0.1607988443612771, 0.17751372317562886, -0.04109012427317455, 0.03830087185014299, 0.0007056188780467871, -0.1769531820402589, 0.02336647922097337, 0.3917556929234199, -0.24441945806394744, -0.23911354240289953, 0.07149113119460729, -0.3394903865881091, -0.1532976694805764, 0.15161806132622757, 0.037579136946086965, 0.031677502094832964, 0.013585091572861339, 0.02947327330556893, -0.06423757953222754, -0.19521893482157138, 0.3200906590147074, -0.03355863379899326, 0.2727706505462181, -0.004688480496406555, 0.05395079213952602, -0.007455492176678638, 0.02977737821638584, 0.05183734538542583, -0.20811272443111087, 0.12154070476156681, 0.1583636238991329, 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712.2942 | On A two-variable p-adic l_q function | We prove that a two-variable p-adic l_q-function has the series p-adic
expansion which interpolates a linear combinations of terms of the generalized
q-Euler polynomials at non positive integers. The proof of this original
construction is due to Kubota and Leopoldt in 1964, although the method given
this note is due to Washington
| math.NT | we prove that a twovariable padic l_qfunction has the series padic expansion which interpolates a linear combinations of terms of the generalized qeuler polynomials at non positive integers the proof of this original construction is due to kubota and leopoldt in 1964 although the method given this note is due to washington | [['we', 'prove', 'that', 'a', 'twovariable', 'padic', 'l_qfunction', 'has', 'the', 'series', 'padic', 'expansion', 'which', 'interpolates', 'a', 'linear', 'combinations', 'of', 'terms', 'of', 'the', 'generalized', 'qeuler', 'polynomials', 'at', 'non', 'positive', 'integers', 'the', 'proof', 'of', 'this', 'original', 'construction', 'is', 'due', 'to', 'kubota', 'and', 'leopoldt', 'in', '1964', 'although', 'the', 'method', 'given', 'this', 'note', 'is', 'due', 'to', 'washington']] | [-0.17190040388674127, 0.05143031398948355, -0.17932903153967916, 0.0716039411741875, -0.11112301263446901, -0.10197536802540223, 0.0026512175214056877, 0.18769792016303422, -0.3184169792643219, -0.2173877586336697, 0.0475203801361917, -0.2557592096318509, -0.19603668014500655, 0.2088125015736795, -0.14234889291372954, -0.001845340536651658, 0.017444220335021906, 0.06242550124286437, -0.0848298109839579, -0.3581670259545539, 0.3402662753839703, -0.010919531237781412, 0.2161860497047504, 0.061837162201603256, 0.14339170721816083, 0.010357474141261157, -0.04860017795627024, -0.07973968990001024, -0.12303031451943645, 0.13488872061191381, 0.2993866062321353, 0.05480150846928796, 0.3120117023514182, -0.31422006470315594, -0.08426226554472711, 0.208714699920486, 0.131101137154973, 0.06844781254253843, 0.018140305103003688, -0.22551345080137253, 0.10653162444485169, -0.17928210828526348, -0.18284121190435162, -0.08460391526493956, 0.0646076996390726, 0.0647741536810702, -0.3301322527010651, 0.06256840981579587, 0.1108508864965509, 0.13438439612075978, -0.029821370805924136, -0.15254641278628625, 0.07247223743858437, -0.012970912598950021, 0.04360008657928191, 0.07529838957285107, 0.002877986451209176, -0.0444841256602576, -0.11271030674505905, 0.3448833981346266, -0.06623239658188586, -0.18734308620732204, 0.1389521153862862, -0.1626814692555105, -0.20919125364162028, 0.07064736824409634, 0.07296681364852131, 0.13964521704132066, -0.056313133908107, 0.18112008337401694, -0.14891860818526909, 0.09658636012132846, 0.21510724016629598, -0.030569302630336845, 0.17908288706459252, -0.01995007391658374, 0.006428098369974131, 0.22157752891892896, 0.027577942602482496, -0.09409506667368844, -0.30865497605911657, -0.18299077875403158, -0.19563982045898834, 0.06722683952573467, -0.07072344441486149, -0.22180351085376507, 0.41920911111668047, 0.09156516355042364, 0.1367356143709199, 0.1824845342974489, 0.2265871509215703, 0.2014386313510876, 0.05252015974495888, 0.02472133435053276, 0.10319573571905494, 0.22795591194766993, 0.08527177125763367, -0.16036238797082036, 0.04174633163904004, 0.2138475260934701] |
712.2943 | Software (Re-)Engineering with PSF | This paper investigates the usefulness of PSF in software engineering and
reengineering. PSF is based on ACP (Algebra of Communicating Processes) and as
some architectural description languages are based on process algebra, we
investigate whether PSF can be used at the software architecture level, but we
also use PSF at lower abstract levels. As a case study we reengineer the
compiler from the Toolkit of PSF.
| cs.SE | this paper investigates the usefulness of psf in software engineering and reengineering psf is based on acp algebra of communicating processes and as some architectural description languages are based on process algebra we investigate whether psf can be used at the software architecture level but we also use psf at lower abstract levels as a case study we reengineer the compiler from the toolkit of psf | [['this', 'paper', 'investigates', 'the', 'usefulness', 'of', 'psf', 'in', 'software', 'engineering', 'and', 'reengineering', 'psf', 'is', 'based', 'on', 'acp', 'algebra', 'of', 'communicating', 'processes', 'and', 'as', 'some', 'architectural', 'description', 'languages', 'are', 'based', 'on', 'process', 'algebra', 'we', 'investigate', 'whether', 'psf', 'can', 'be', 'used', 'at', 'the', 'software', 'architecture', 'level', 'but', 'we', 'also', 'use', 'psf', 'at', 'lower', 'abstract', 'levels', 'as', 'a', 'case', 'study', 'we', 'reengineer', 'the', 'compiler', 'from', 'the', 'toolkit', 'of', 'psf']] | [-0.05052321845538576, -0.037600156526561034, -0.1026405365961237, 0.11220156566948637, -0.10555712813793709, -0.11615111762093323, 0.02088196715516405, 0.4645068673699191, -0.2729132727254182, -0.3158733236292998, 0.12012131804085309, -0.2118154605427249, -0.18531204184347932, 0.23503084489934598, -0.12461747413952694, 0.03551397292705422, 0.08851690210797118, -0.029548258802881748, -0.07324309067123315, -0.20317635432619488, 0.3971484663021384, 0.12221430047330531, 0.24042699404173729, 0.03986170838558764, 0.0548434560187161, 0.04241093431571216, -0.043146161094420786, -0.055179475750209706, -0.09309845079075206, 0.0949896167483971, 0.31722879234814283, 0.23909812009978024, 0.28126161353606166, -0.38295571209693496, -0.1061654185812751, 0.04075592871981137, 0.17535376120499815, 0.07287260921051104, 0.004851552230926852, -0.2626890812993445, 0.04878388209776445, -0.1997947251833411, -0.0840509758246216, -0.06334596568062394, -0.0533207513561303, 0.008755756270450851, -0.20186986982342647, -0.0300387319809736, 0.07551846904397914, 0.16834439214488323, -0.018300167239045328, -0.14645164256746118, -0.030558617630352575, 0.13826391769036878, -0.05938355097675936, 0.03884164597283499, 0.1963035890084663, -0.11685145133753505, -0.1192824828410239, 0.37640037051768915, -0.004613298097286712, -0.20773949438113382, 0.136166449756164, -0.09684963991413965, -0.2022800639864396, 0.05507757993076335, 0.2597122238948941, 0.0548388719502272, -0.21863606033112967, 0.14890913596327388, 0.04481140889269723, 0.24811295597729358, 0.08093002506983325, -0.0049388406544246454, 0.1964381122467757, 0.2609095665146456, 0.0075462186624380674, 0.17862384052149896, -0.07236440725991446, -0.04430714078515655, -0.32265828676154895, -0.1572852828257689, -0.11892955913913972, 0.022214946531069774, -0.03534810297909038, -0.17361809704170533, 0.4129073681013489, 0.27458484896289354, 0.06751485003130228, 0.08398542914426688, 0.33315731161697343, 0.10038687848613005, 0.08700606667182663, 0.0666186444348458, 0.13114743914224108, 0.060069576145685984, 0.11289067937512741, -0.14670491453227552, 0.10223857634418616, 0.050112682451127155] |
712.2944 | The evolution of H{\sc ii} galaxies: Testing the bursting scenario
through the use of self-consistent models | We have computed a series of realistic and self-consistent models of the
emitted spectra of H{\sc ii} galaxies. Our models combine different codes of
chemical evolution, evolutionary population synthesis and photoionization. The
emitted spectrum of H{\sc ii} galaxies is reproduced by means of the
photoionization code CLOUDY, using as ionizing spectrum the spectral energy
distribution of the modelled H{\sc ii} galaxy, which in turn is calculated
according to a Star Formation History (SFH) and a metallicity evolution given
by a chemical evolution model that follows the abundances of 15 different
elements. The contribution of emission lines to the broad-band colours is
explicitly taken into account.
The results of our code are compared with photometric and spectroscopic data
of H{\sc ii} galaxies. Our technique reproduces observed diagnostic diagrams,
abundances, equivalent width-colour and equivalent width-metallicity relations
for local H{\sc ii} galaxies.
| astro-ph | we have computed a series of realistic and selfconsistent models of the emitted spectra of hsc ii galaxies our models combine different codes of chemical evolution evolutionary population synthesis and photoionization the emitted spectrum of hsc ii galaxies is reproduced by means of the photoionization code cloudy using as ionizing spectrum the spectral energy distribution of the modelled hsc ii galaxy which in turn is calculated according to a star formation history sfh and a metallicity evolution given by a chemical evolution model that follows the abundances of 15 different elements the contribution of emission lines to the broadband colours is explicitly taken into account the results of our code are compared with photometric and spectroscopic data of hsc ii galaxies our technique reproduces observed diagnostic diagrams abundances equivalent widthcolour and equivalent widthmetallicity relations for local hsc ii galaxies | [['we', 'have', 'computed', 'a', 'series', 'of', 'realistic', 'and', 'selfconsistent', 'models', 'of', 'the', 'emitted', 'spectra', 'of', 'hsc', 'ii', 'galaxies', 'our', 'models', 'combine', 'different', 'codes', 'of', 'chemical', 'evolution', 'evolutionary', 'population', 'synthesis', 'and', 'photoionization', 'the', 'emitted', 'spectrum', 'of', 'hsc', 'ii', 'galaxies', 'is', 'reproduced', 'by', 'means', 'of', 'the', 'photoionization', 'code', 'cloudy', 'using', 'as', 'ionizing', 'spectrum', 'the', 'spectral', 'energy', 'distribution', 'of', 'the', 'modelled', 'hsc', 'ii', 'galaxy', 'which', 'in', 'turn', 'is', 'calculated', 'according', 'to', 'a', 'star', 'formation', 'history', 'sfh', 'and', 'a', 'metallicity', 'evolution', 'given', 'by', 'a', 'chemical', 'evolution', 'model', 'that', 'follows', 'the', 'abundances', 'of', '15', 'different', 'elements', 'the', 'contribution', 'of', 'emission', 'lines', 'to', 'the', 'broadband', 'colours', 'is', 'explicitly', 'taken', 'into', 'account', 'the', 'results', 'of', 'our', 'code', 'are', 'compared', 'with', 'photometric', 'and', 'spectroscopic', 'data', 'of', 'hsc', 'ii', 'galaxies', 'our', 'technique', 'reproduces', 'observed', 'diagnostic', 'diagrams', 'abundances', 'equivalent', 'widthcolour', 'and', 'equivalent', 'widthmetallicity', 'relations', 'for', 'local', 'hsc', 'ii', 'galaxies']] | [0.02477578046667162, 0.049173745711957165, -0.0838986219563555, 0.11723702586224141, -0.022439532698862414, -0.09477157403694854, 0.01536389213832591, 0.4422861650961337, -0.15752576489885933, -0.34555227107120506, -0.016966832655133587, -0.2662357020831714, -0.007896913299270027, 0.14831422632325628, 0.009784479769576582, -0.03994774209710655, 0.08564246468507289, -0.14336933401955976, -0.027152232535974048, -0.2747523281187248, 0.34870970985188865, 0.09203430740899748, 0.19801437316743806, -0.06407225456946403, 0.04078500696856582, -0.11754951960149242, -0.14994544321135114, 0.026383093814061963, -0.1686668068545024, 0.06311723976412775, 0.20600931110303797, 0.2224751869082558, 0.1686871260866898, -0.3527481886987464, -0.25456383834398694, 0.03940483985348142, 0.2137992480709452, 0.08244905359088275, -0.09667139757833303, -0.25157747154371984, 0.04320108687853534, -0.1899605184833673, -0.13445566824416247, 0.0644429463762522, 0.00229696928114771, 0.09092241669368507, -0.28369970240449305, 0.07858809859913995, -0.011806942680817124, 0.12379159494939683, -0.13952939594063987, -0.12971458738843958, -0.14262607447943723, 0.13603774788822953, -0.08412463803484152, 0.006847586670367838, 0.17288637760416906, -0.1284297993021394, -0.024873859185822602, 0.42531150226353953, -0.11249170487699695, 0.015436407498573121, 0.15139893289879902, -0.13957581603095578, -0.16469013378720918, 0.15541243354836815, 0.11331649633164671, 0.10775383178935312, -0.16425986083479022, 0.05259306114895618, 0.02065477583208959, 0.2127039776645976, -0.031092678762891953, 0.04953399311305985, 0.2798004660339986, 0.05724796718455476, -0.061330242581638716, 0.09150106336112408, -0.17177682563582128, -0.06560634752976702, -0.27533191404968715, -0.07759330926878417, -0.13671489821733546, 0.07756675320188347, -0.12465592043458823, -0.14479222301588052, 0.4097913586996871, 0.08672457306960718, 0.2081741304963864, 0.07965206085091202, 0.310810080896929, 0.11197731701662202, 0.10826739894725355, 0.05695526893820158, 0.23192561462709158, 0.19517758678604694, 0.06140879220027718, -0.3062558165992603, 0.0869986572346429, 0.04566091185824262] |
712.2945 | Giant vortex and Skyrmion in a rotating two-species Bose-Einstein
condensate | Numerical simulations are performed for a rotating two-species Bose
condensate confined by a harmonic potential. The particle numbers of each
species are unequal. When the rotational speed exceeds a critical value, the
majority species reside in the center of the potential while the minority
species is pushed out to the outskirts, forming a giant vortex hole to contain
the majority species. A novel annular Skyrmion forms at the interface of the
two species.
| cond-mat.other | numerical simulations are performed for a rotating twospecies bose condensate confined by a harmonic potential the particle numbers of each species are unequal when the rotational speed exceeds a critical value the majority species reside in the center of the potential while the minority species is pushed out to the outskirts forming a giant vortex hole to contain the majority species a novel annular skyrmion forms at the interface of the two species | [['numerical', 'simulations', 'are', 'performed', 'for', 'a', 'rotating', 'twospecies', 'bose', 'condensate', 'confined', 'by', 'a', 'harmonic', 'potential', 'the', 'particle', 'numbers', 'of', 'each', 'species', 'are', 'unequal', 'when', 'the', 'rotational', 'speed', 'exceeds', 'a', 'critical', 'value', 'the', 'majority', 'species', 'reside', 'in', 'the', 'center', 'of', 'the', 'potential', 'while', 'the', 'minority', 'species', 'is', 'pushed', 'out', 'to', 'the', 'outskirts', 'forming', 'a', 'giant', 'vortex', 'hole', 'to', 'contain', 'the', 'majority', 'species', 'a', 'novel', 'annular', 'skyrmion', 'forms', 'at', 'the', 'interface', 'of', 'the', 'two', 'species']] | [-0.1754229893295528, 0.22340389603927527, -0.006696259047938128, 0.017014884946497846, 0.0027457830202701973, -0.1380228763254844, 0.07931247228526905, 0.30793010259736076, -0.1782888699074161, -0.2572617438455967, 0.014920568991490728, -0.31415272912342257, -0.016176705720694098, 0.13800011210507165, 0.06583012687680248, -0.01794098042053719, 0.04776076821942035, 0.04868840061332265, -0.00827534034950276, -0.2374901469694833, 0.3145712573330033, 0.010886995600255793, 0.26175119072096803, 0.0252487607912658, 0.08463969647610076, -0.0890814153515823, 0.06520069920623751, 0.016998201525731855, -0.1383502265145007, 0.06852386262880204, 0.18792759393475797, 0.015389817613751104, 0.2775378902634121, -0.4218182866142629, -0.22462192148429483, 0.11311051939703422, 0.2138523580506444, 0.1697506954070589, -0.10696503717758477, -0.26642849714788674, 0.003589800291069566, -0.17109214891169272, -0.2318791304204664, 0.018356769621589105, 0.03504604301479173, 0.08319341184568196, -0.21652726429093577, 0.14305390639562313, 0.005219889421985574, 0.06825808236656124, -0.09245945431598246, -0.13410243777277536, -0.10254955430170648, 0.10565452711785862, 0.008498448735000948, 0.009236455780186066, 0.2107052575184466, -0.18832002253963753, -0.03548973200408972, 0.4016363584525781, -0.059936562897509905, -0.16687350355292838, 0.2543693136787425, -0.20182273834816192, -0.10211007729529926, 0.20695741432527565, 0.13325673763916113, 0.11548656307492558, -0.1024996566959762, 0.019438628987600542, -0.08547718223337442, 0.14795771931387383, 0.11756977755959107, -0.045332174237868554, 0.39770306756541335, 0.1632436858458215, 0.05234662412780605, 0.15956661855317142, -0.15534795568745635, -0.1841593161480476, -0.21188941171826564, -0.16381275777590193, -0.1725315877223668, -0.027200939942291644, -0.054500013270912924, -0.15228552037008006, 0.35706312978665716, 0.08506141430522915, 0.2040742665289244, -0.024768214506951915, 0.2882684634819831, 0.08608094993213268, 0.10205225310007697, 0.06340013200110972, 0.23974785616315186, 0.1488814073302209, 0.08461737980083754, -0.26500774884902656, 0.004522464410338091, 0.06307099607281948] |
712.2946 | $\R$-trees, dual laminations, and compact systems of partial isometries | Let $\FN$ be a free group of finite rank $N \geq 2$, and let $T$ be an
$\R$-tree with a very small, minimal action of $\FN$ with dense orbits. For any
basis $\CA$ of $\FN$ there exists a {\em heart} $K_{\CA} \subset \bar T$ (= the
metric completion of $T$) which is a compact subtree that has the property that
the dynamical system of partial isometries $a_{i} : K_{\CA} \cap a_{i} K_{\CA}
\to a_{i}\inv K_{\CA} \cap K_{\CA}$, for each $a_{i} \in \CA$, defines a tree
$T_{(K_{\CA}, \CA)}$ which contains an isometric copy of $T$ as minimal
subtree.
| math.GR | let fn be a free group of finite rank n geq 2 and let t be an rtree with a very small minimal action of fn with dense orbits for any basis ca of fn there exists a em heart k_ca subset bar t the metric completion of t which is a compact subtree that has the property that the dynamical system of partial isometries a_i k_ca cap a_i k_ca to a_iinv k_ca cap k_ca for each a_i in ca defines a tree t_k_ca ca which contains an isometric copy of t as minimal subtree | [['let', 'fn', 'be', 'a', 'free', 'group', 'of', 'finite', 'rank', 'n', 'geq', '2', 'and', 'let', 't', 'be', 'an', 'rtree', 'with', 'a', 'very', 'small', 'minimal', 'action', 'of', 'fn', 'with', 'dense', 'orbits', 'for', 'any', 'basis', 'ca', 'of', 'fn', 'there', 'exists', 'a', 'em', 'heart', 'k_ca', 'subset', 'bar', 't', 'the', 'metric', 'completion', 'of', 't', 'which', 'is', 'a', 'compact', 'subtree', 'that', 'has', 'the', 'property', 'that', 'the', 'dynamical', 'system', 'of', 'partial', 'isometries', 'a_i', 'k_ca', 'cap', 'a_i', 'k_ca', 'to', 'a_iinv', 'k_ca', 'cap', 'k_ca', 'for', 'each', 'a_i', 'in', 'ca', 'defines', 'a', 'tree', 't_k_ca', 'ca', 'which', 'contains', 'an', 'isometric', 'copy', 'of', 't', 'as', 'minimal', 'subtree']] | [-0.19075265969400124, 0.18659100656726857, -0.02231347182845717, -0.042156161513850494, -0.05828805553716838, -0.2173844262349209, 0.04656715544882, 0.34135405291673, -0.3332505193689177, -0.14331587207733945, 0.08417652895979544, -0.33071559038694187, -0.08166446731305652, 0.0924536854990067, -0.10687027337850742, -0.07615126408536428, 0.04424488960054292, 0.1788806053847375, -0.02275463227202655, -0.21227002340138598, 0.27530675490076345, -0.06144380225469508, 0.12813129466432596, -0.014029170406521648, 0.14822741018067445, 0.014555841106020154, 0.06037419906226538, 0.041811262272418506, -0.163942383698179, 0.0400061447083229, 0.2850611151486475, 0.2251459563611656, 0.2573501472862097, -0.33496564380343885, -0.13785923222800897, 0.23451171839429485, 0.15430366583619146, -0.0650738026040496, -0.03993161827806504, -0.19424195311555478, 0.20922246218849255, -0.13393861620176223, -0.09829014202239372, 0.003993741977679473, 0.1903095329893873, -0.04347925559086825, -0.36581204062508, -0.053754362047359505, 0.11020473408186057, 0.1017183913293505, -0.0029604491998030933, -0.16318282430305556, -0.10337494755344044, 0.0851967360934503, -0.03872690363086119, 0.18685080571806117, 0.08209889849788078, -0.04192703459831205, -0.09030740278627804, 0.39434260137939964, -0.11454046766088415, -0.17052116965053862, 0.10997408759149332, -0.18236756975692447, -0.1420399890574176, 0.12865713209674884, 0.057918637129728515, 0.1560674912439564, -0.07814161542562707, 0.2665169568906378, -0.14967028702539142, 0.15356962316699566, 0.08849314785492356, 0.01727483956323516, 0.10906560205189782, 0.1135300438029952, 0.14528796963033178, 0.06913545699940334, -0.015008289817600481, 0.07394056141336439, -0.38160539205156024, -0.167042643312485, -0.1546287672514076, 0.1471229118485284, -0.15676029185124207, -0.21817146773795568, 0.3056939669674443, -0.007750631587940359, 0.24180510224053456, 0.08515246837620213, 0.1535671598926407, 0.03155966079668693, 0.09291720154985625, 0.15294653556299626, -0.017642272002894872, 0.14014685459645285, -0.09267936764104713, -0.21021649555393285, 0.01670356032749017, 0.19078366972145536] |
712.2947 | Stability in the instantaneous Bethe-Salpeter formalism: reduced
exact-propagator bound-state equation with harmonic interaction | Several numerical investigations of the Salpeter equation with static
confining interactions of Lorentz-scalar type revealed that its solutions are
plagued by instabilities of presumably Klein-paradox nature. By proving
rigorously that the energies of all predicted bound states are part of real,
entirely discrete spectra bounded from below, these instabilities are shown,
for confining interactions of harmonic-oscillator shape, to be absent for a
reduced version of an instantaneous Bethe-Salpeter formalism designed to
generalize the Salpeter equation towards an approximate inclusion of the exact
propagators of all bound-state constituents.
| hep-ph nucl-th | several numerical investigations of the salpeter equation with static confining interactions of lorentzscalar type revealed that its solutions are plagued by instabilities of presumably kleinparadox nature by proving rigorously that the energies of all predicted bound states are part of real entirely discrete spectra bounded from below these instabilities are shown for confining interactions of harmonicoscillator shape to be absent for a reduced version of an instantaneous bethesalpeter formalism designed to generalize the salpeter equation towards an approximate inclusion of the exact propagators of all boundstate constituents | [['several', 'numerical', 'investigations', 'of', 'the', 'salpeter', 'equation', 'with', 'static', 'confining', 'interactions', 'of', 'lorentzscalar', 'type', 'revealed', 'that', 'its', 'solutions', 'are', 'plagued', 'by', 'instabilities', 'of', 'presumably', 'kleinparadox', 'nature', 'by', 'proving', 'rigorously', 'that', 'the', 'energies', 'of', 'all', 'predicted', 'bound', 'states', 'are', 'part', 'of', 'real', 'entirely', 'discrete', 'spectra', 'bounded', 'from', 'below', 'these', 'instabilities', 'are', 'shown', 'for', 'confining', 'interactions', 'of', 'harmonicoscillator', 'shape', 'to', 'be', 'absent', 'for', 'a', 'reduced', 'version', 'of', 'an', 'instantaneous', 'bethesalpeter', 'formalism', 'designed', 'to', 'generalize', 'the', 'salpeter', 'equation', 'towards', 'an', 'approximate', 'inclusion', 'of', 'the', 'exact', 'propagators', 'of', 'all', 'boundstate', 'constituents']] | [-0.1230955924852318, 0.1405120136593279, -0.09650101300009505, 0.10346721290329168, -0.04646357652449677, -0.13227114431170184, 0.004080429846464202, 0.3166040374009415, -0.22688375139977177, -0.28280858201689496, 0.04270002063970233, -0.29764166227975036, -0.09330319049551564, 0.16274560029012, 0.057362657604223155, 0.06289693608075965, 0.06553722306176327, -0.013777921463601118, -0.09279050282744128, -0.19722318869668903, 0.34915170794742745, 0.019074593887252862, 0.20117807395615464, 0.07759892752632326, 0.028019964131851528, -0.002590316694316476, 0.0078051341372693695, -0.0038221290465011155, -0.10744925907377809, 0.08306127450897441, 0.2047212184081937, 0.04098411279102398, 0.24597108645126398, -0.4491400164010566, -0.2314744739858217, 0.08288583820035984, 0.20470340184591235, 0.1382006587850493, -0.04585533236088448, -0.3345135012316669, 0.05927595554656068, -0.16556292087879293, -0.25696413286116926, -0.09709813657519949, 0.013835923984473529, 0.038895902288861056, -0.24014484451347312, 0.13904533570978878, 0.03771363899685702, 0.0024813262767396692, -0.1630777740894362, -0.14652668006263328, -0.05883205389105823, 0.05933531993177048, 0.04474970428570888, 0.010145316118385296, 0.08513021020781855, -0.18157469553244843, -0.10300131872036429, 0.37649385902900684, -0.02157179904062041, -0.21069038585694724, 0.17502146894464182, -0.09409846507316065, -0.08272239196569074, 0.19884946626925104, 0.10290315264272828, 0.11775033062237293, -0.18745046908165827, 0.12555490037816208, 0.006688149375191262, 0.15161455005710556, 0.07833182915157183, 0.025732858772497882, 0.17672493150674326, 0.0897195429844392, -0.004349445490312741, 0.11034120511951272, 0.05702656906959059, -0.16184540582160184, -0.3281746828538734, -0.03575790845312694, -0.19845945459552283, 0.06507361026177573, -0.06029455069734087, -0.2079643289227618, 0.3403372072450936, 0.09918489715430973, 0.13789873944627945, 0.07411152187215034, 0.22576034549612897, 0.17353621472842817, 0.0594581414696349, 0.073804774624837, 0.28946733393511453, 0.1734177383707923, 0.04510363172956331, -0.2634008871093609, 0.00904568436902103, 0.0961724031710832] |
712.2948 | Finite unions of balls in C^n are rationally convex | It is shown that the rational convexity of any finite union of disjoint
closed balls in C^n follows easily from the results of Duval and Sibony.
| math.CV | it is shown that the rational convexity of any finite union of disjoint closed balls in cn follows easily from the results of duval and sibony | [['it', 'is', 'shown', 'that', 'the', 'rational', 'convexity', 'of', 'any', 'finite', 'union', 'of', 'disjoint', 'closed', 'balls', 'in', 'cn', 'follows', 'easily', 'from', 'the', 'results', 'of', 'duval', 'and', 'sibony']] | [-0.11844136221602988, 0.08077908767602192, -0.10899367412695518, 0.03944858266130233, -0.036519623218247525, -0.13100286372579062, 0.036058949485707745, 0.308918891617885, -0.3002102547683395, -0.13553990858893555, 0.0991817306718216, -0.29482261213259053, -0.12287173124674994, 0.20600672177254006, -0.1838283634816225, 0.0031391897668632176, 0.08092332559709366, 0.06262322157048263, -0.01237190485251351, -0.3195082972256037, 0.3410118849088366, -0.12782538624910209, 0.2366714936394531, 0.15147226355754986, 0.07412035297602415, 0.01027583572655343, -0.001955029912866079, 0.10992054007231043, -0.1741575097338892, 0.11554956819432285, 0.2945207547074041, 0.21294361553513086, 0.20711250896923816, -0.3690686160698533, -0.17796283003945762, 0.18704348318995193, 0.14943387905637232, -0.04565998295751902, 0.029206908576620314, -0.25686300753687435, 0.11360846932690877, -0.07861744641111447, -0.16200158920568916, 0.0045642019965900825, 0.0790111507074191, 0.11570236867723557, -0.2628949856242308, -0.04226910677523567, 0.20712408975053292, 0.07083885286612293, -0.08575593953271611, -0.15139918552281764, -0.09771951388281125, 0.0813260544807865, 0.00983345475441848, 0.1243118094996764, 0.04112750829125826, 0.04414488049224019, -0.0821264733452923, 0.3685681031873593, -0.0784519578401859, -0.21904984338638875, 0.14674016360480052, -0.19585806982593987, -0.1567125791647973, 0.15336009286917174, 0.018948591609772008, 0.13568855535525542, -0.09219881265352552, 0.22170324225757773, -0.1544519286029614, 0.05474398993492986, 0.16137498875076955, -0.055668665579735085, 0.11790884067662634, 0.045561193560178466, 0.1175616469520789, 0.17902069013171756, 0.05659968656702684, -0.06996206819223097, -0.3628016494644376, -0.14921268870910773, -0.25444720703392076, 0.10979470782555066, -0.16829394393257993, -0.20361304190345647, 0.31451807629603606, -0.006915171415759967, 0.18612041499895546, 0.10319341633182305, 0.2598849665373564, 0.032719563477887556, 0.09698071115865158, 0.13286984853374845, 0.14795527041244966, 0.15331989924351758, -0.049659134103701666, -0.12775487564683247, 0.04069164132054608, 0.14839607982251507] |
712.2949 | First Stars XI. Chemical composition of the extremely metal-poor dwarfs
in the binary CS 22876--032 | We have used high-resolution, high-S/N ratio spectra from the UVES
spectrograph at the ESO VLT telescope. Long-term radial-velocity measurements
and broad-band photometry allow us to determine improved orbital elements and
stellar parameters for both components. We use OSMARCS 1D models and the
{{\scshape turbospectrum}} spectral synthesis code to determine the abundances
of Li, O, Na, Mg, Al, Si, Ca, Sc, Ti, Cr, Mn, Fe, Co and Ni. We also use the
CO$^5$BOLD model atmosphere code to compute the 3D abundance corrections,
especially for Li and O. We find a metallicity of [Fe/H]$\sim -3.6$ for both
stars, using 1D models with 3D corrections of $\sim -0.1$ dex from averaged 3D
models. We determine the oxygen abundance from the near-UV OH bands; the 3D
corrections are large, -1 and -1.5 dex for the secondary and primary
respectively, and yield [O/Fe] $\sim 0.8$, close to the high-quality results
obtained from the [OI] 630 nm line in metal-poor giants. Other [$\alpha$/Fe]
ratios are consistent with those measured in other dwarfs and giants with
similar [Fe/H], although Ca and Si are somewhat low ([X/Fe]$\la 0$). Other
element ratios follow those of other halo stars. The Li abundance of the
primary star is consistent with the Spite plateau, but the secondary shows a
lower abundance; 3D corrections are small. The Li abundance in the primary star
supports the extension of the {{\em Spite Plateau}} value at the lowest
metallicities, without any decrease. The low abundance in the secondary star
could be explained by endogenic Li depletion, due to its cooler temperature. If
this is not the case, another, yet unknown mechanism may be causing increased
scatter in A(Li) at the lowest metallicities.
| astro-ph | we have used highresolution highsn ratio spectra from the uves spectrograph at the eso vlt telescope longterm radialvelocity measurements and broadband photometry allow us to determine improved orbital elements and stellar parameters for both components we use osmarcs 1d models and the scshape turbospectrum spectral synthesis code to determine the abundances of li o na mg al si ca sc ti cr mn fe co and ni we also use the co5bold model atmosphere code to compute the 3d abundance corrections especially for li and o we find a metallicity of fehsim 36 for both stars using 1d models with 3d corrections of sim 01 dex from averaged 3d models we determine the oxygen abundance from the nearuv oh bands the 3d corrections are large 1 and 15 dex for the secondary and primary respectively and yield ofe sim 08 close to the highquality results obtained from the oi 630 nm line in metalpoor giants other alphafe ratios are consistent with those measured in other dwarfs and giants with similar feh although ca and si are somewhat low xfela 0 other element ratios follow those of other halo stars the li abundance of the primary star is consistent with the spite plateau but the secondary shows a lower abundance 3d corrections are small the li abundance in the primary star supports the extension of the em spite plateau value at the lowest metallicities without any decrease the low abundance in the secondary star could be explained by endogenic li depletion due to its cooler temperature if this is not the case another yet unknown mechanism may be causing increased scatter in ali at the lowest metallicities | [['we', 'have', 'used', 'highresolution', 'highsn', 'ratio', 'spectra', 'from', 'the', 'uves', 'spectrograph', 'at', 'the', 'eso', 'vlt', 'telescope', 'longterm', 'radialvelocity', 'measurements', 'and', 'broadband', 'photometry', 'allow', 'us', 'to', 'determine', 'improved', 'orbital', 'elements', 'and', 'stellar', 'parameters', 'for', 'both', 'components', 'we', 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712.295 | Delay Induced Instabilities in Self-Propelling Swarms | We consider a general model of self-propelling particles interacting through
a pairwise attractive force in the presence of noise and communication time
delay. Previous work by Erdmann, et al. [Phys. Rev. E {\bf 71}, 051904 (2205)]
has shown that a large enough noise intensity will cause a translating swarm of
individuals to transition to a rotating swarm with a stationary center of mass.
We show that with the addition of a time delay, the model possesses a
transition that depends on the size of the coupling amplitude. This transition
is independent of the initial swarm state (traveling or rotating) and is
characterized by the alignment of all of the individuals along with a swarm
oscillation. By considering the mean field equations without noise, we show
that the time delay induced transition is associated with a Hopf bifurcation.
The analytical result yields good agreement with numerical computations of the
value of the coupling parameter at the Hopf point.
| nlin.AO nlin.PS | we consider a general model of selfpropelling particles interacting through a pairwise attractive force in the presence of noise and communication time delay previous work by erdmann et al phys rev e bf 71 051904 2205 has shown that a large enough noise intensity will cause a translating swarm of individuals to transition to a rotating swarm with a stationary center of mass we show that with the addition of a time delay the model possesses a transition that depends on the size of the coupling amplitude this transition is independent of the initial swarm state traveling or rotating and is characterized by the alignment of all of the individuals along with a swarm oscillation by considering the mean field equations without noise we show that the time delay induced transition is associated with a hopf bifurcation the analytical result yields good agreement with numerical computations of the value of the coupling parameter at the hopf point | [['we', 'consider', 'a', 'general', 'model', 'of', 'selfpropelling', 'particles', 'interacting', 'through', 'a', 'pairwise', 'attractive', 'force', 'in', 'the', 'presence', 'of', 'noise', 'and', 'communication', 'time', 'delay', 'previous', 'work', 'by', 'erdmann', 'et', 'al', 'phys', 'rev', 'e', 'bf', '71', '051904', '2205', 'has', 'shown', 'that', 'a', 'large', 'enough', 'noise', 'intensity', 'will', 'cause', 'a', 'translating', 'swarm', 'of', 'individuals', 'to', 'transition', 'to', 'a', 'rotating', 'swarm', 'with', 'a', 'stationary', 'center', 'of', 'mass', 'we', 'show', 'that', 'with', 'the', 'addition', 'of', 'a', 'time', 'delay', 'the', 'model', 'possesses', 'a', 'transition', 'that', 'depends', 'on', 'the', 'size', 'of', 'the', 'coupling', 'amplitude', 'this', 'transition', 'is', 'independent', 'of', 'the', 'initial', 'swarm', 'state', 'traveling', 'or', 'rotating', 'and', 'is', 'characterized', 'by', 'the', 'alignment', 'of', 'all', 'of', 'the', 'individuals', 'along', 'with', 'a', 'swarm', 'oscillation', 'by', 'considering', 'the', 'mean', 'field', 'equations', 'without', 'noise', 'we', 'show', 'that', 'the', 'time', 'delay', 'induced', 'transition', 'is', 'associated', 'with', 'a', 'hopf', 'bifurcation', 'the', 'analytical', 'result', 'yields', 'good', 'agreement', 'with', 'numerical', 'computations', 'of', 'the', 'value', 'of', 'the', 'coupling', 'parameter', 'at', 'the', 'hopf', 'point']] | [-0.20408636298858127, 0.15108658850584536, -0.06692340362306898, -0.03546906217997953, -0.03815079777898967, -0.13332485870879357, 0.07028614815508437, 0.33180340706625844, -0.21943902797629214, -0.31875287368893623, 0.03339713710956394, -0.2609414211296399, -0.16375165590927432, 0.1461450150340297, -0.054844981272983706, 0.01966506280123618, 0.06431687023834723, 0.06567020355990738, -0.0346944459393668, -0.19639709542333417, 0.2882790200206137, 0.07225416526702606, 0.24027606988456218, -0.010544623066611873, 0.11381362835212261, 0.011745300428692703, 0.011464962522961959, 0.05593274219798007, -0.16128169103828852, 0.03138149704096044, 0.17184905351694246, 0.07104215116767847, 0.2703087910013214, -0.3783583235304067, -0.21191151746827516, 0.12539916538639337, 0.13053294565457446, 0.13704917308500714, -0.07557019962748264, -0.32520530979626566, 0.046691399180348134, -0.1523595760015854, -0.15020019002851975, -0.025750125645642066, 0.07988701428948149, 0.07590082377954653, -0.30767582437604857, 0.11488596846165645, 0.05585656424978404, 0.043900049309347086, -0.04698169484414208, -0.053261544897256624, -0.05174598420798114, 0.06780612346965369, 0.04916289943683956, 0.0656171063417984, 0.13480486112029832, -0.10247803892151328, -0.1085774233137631, 0.36779576448047424, -0.09286797646978859, -0.1739472032741163, 0.20016412319657007, -0.1301212129005154, -0.07536837155485798, 0.17813740312388748, 0.1584100415188653, 0.09209178639931759, -0.1237133684698611, 0.0946358494263344, -0.05379863217555336, 0.1833564199110164, 0.07952611331062712, -0.0276071693182194, 0.17607651018555376, 0.19068396293445472, 0.0574707067186001, 0.11014677549172548, -0.09943456554846174, -0.1424004406876607, -0.2919845569012746, -0.12482818781404169, -0.17831277684531038, 0.06760103438512251, -0.08046894776319735, -0.14855453207444513, 0.3938067093028859, 0.14306419868627265, 0.22719285291898403, 0.07347494822031089, 0.259416128283331, 0.13010663268672432, 0.011002481923954692, 0.0978860813282003, 0.27869738912459013, 0.13138947613792387, 0.09896202569020687, -0.2640952244638258, 0.05022606611916214, 0.03266309828877117] |
712.2951 | Discrete chaotic states of a Bose-Einstein condensate | We find the different spatial chaos in a one-dimensional attractive
Bose-Einstein condensate interacting with a Gaussian-like laser barrier and
perturbed by a weak optical lattice. For the low laser barrier the chaotic
regions of parameters are demonstrated and the chaotic and regular states are
illustrated numerically. In the high barrier case, the bounded perturbed
solutions which describe a set of discrete chaotic states are constructed for
the discrete barrier heights and magic numbers of condensed atoms. The chaotic
density profiles are exhibited numerically for the lowest quantum number, and
the analytically bounded but numerically unbounded Gaussian-like configurations
are confirmed. It is shown that the chaotic wave packets can be controlled
experimentally by adjusting the laser barrier potential.
| cond-mat.other | we find the different spatial chaos in a onedimensional attractive boseeinstein condensate interacting with a gaussianlike laser barrier and perturbed by a weak optical lattice for the low laser barrier the chaotic regions of parameters are demonstrated and the chaotic and regular states are illustrated numerically in the high barrier case the bounded perturbed solutions which describe a set of discrete chaotic states are constructed for the discrete barrier heights and magic numbers of condensed atoms the chaotic density profiles are exhibited numerically for the lowest quantum number and the analytically bounded but numerically unbounded gaussianlike configurations are confirmed it is shown that the chaotic wave packets can be controlled experimentally by adjusting the laser barrier potential | [['we', 'find', 'the', 'different', 'spatial', 'chaos', 'in', 'a', 'onedimensional', 'attractive', 'boseeinstein', 'condensate', 'interacting', 'with', 'a', 'gaussianlike', 'laser', 'barrier', 'and', 'perturbed', 'by', 'a', 'weak', 'optical', 'lattice', 'for', 'the', 'low', 'laser', 'barrier', 'the', 'chaotic', 'regions', 'of', 'parameters', 'are', 'demonstrated', 'and', 'the', 'chaotic', 'and', 'regular', 'states', 'are', 'illustrated', 'numerically', 'in', 'the', 'high', 'barrier', 'case', 'the', 'bounded', 'perturbed', 'solutions', 'which', 'describe', 'a', 'set', 'of', 'discrete', 'chaotic', 'states', 'are', 'constructed', 'for', 'the', 'discrete', 'barrier', 'heights', 'and', 'magic', 'numbers', 'of', 'condensed', 'atoms', 'the', 'chaotic', 'density', 'profiles', 'are', 'exhibited', 'numerically', 'for', 'the', 'lowest', 'quantum', 'number', 'and', 'the', 'analytically', 'bounded', 'but', 'numerically', 'unbounded', 'gaussianlike', 'configurations', 'are', 'confirmed', 'it', 'is', 'shown', 'that', 'the', 'chaotic', 'wave', 'packets', 'can', 'be', 'controlled', 'experimentally', 'by', 'adjusting', 'the', 'laser', 'barrier', 'potential']] | [-0.1681704218310312, 0.2566265883640601, -0.055615684835431285, 0.11738648993643717, 0.04468284345741392, -0.2013272029809399, 0.013376710130474888, 0.3798314351747688, -0.28516050440092117, -0.24902684502622002, 0.07147609760873339, -0.2604143997668249, -0.1374305802015349, 0.21821349928887862, 0.03177431287466843, 0.13813671067558053, 0.033614144403821766, -0.006927414287805048, -0.007496130539295383, -0.22029657299335823, 0.30222889324092966, 0.015590652977673607, 0.2502170392753891, 0.04466870893190941, 0.09920184081420302, -0.058047769531512104, 0.06888643288825694, 0.0015091905012153662, -0.12122048901098742, 0.06765523920548108, 0.2055247192008373, -0.02229634986923705, 0.24274267976641908, -0.45570098409731674, -0.24127225403506786, 0.09931103663487184, 0.19107769244215173, 0.16045327990765595, -0.08763895472750449, -0.35502593130724996, 0.04604413433589487, -0.14170557162605035, -0.22586714495849022, -0.08371793285298806, 0.05337500085847245, 0.1326179240181501, -0.2708170733804631, 0.07069026852329062, -0.0005053644761061057, 0.06390955419136354, -0.06343276317143796, -0.03223140207795888, -0.09949351203007002, 0.0438792288191935, -0.036279438124104196, -0.04106308105521095, 0.13534157590654033, -0.1016304960188806, -0.05676899592065786, 0.3330370394879172, -0.050037132751228466, -0.20464436209991446, 0.1713090082192714, -0.16803015735493892, 0.0012773133089972867, 0.1693077719746492, 0.09783531381135695, 0.12304104535450411, -0.09457767407338206, 0.10480822026545508, -0.02559090235843184, 0.15013599036531086, 0.1554148209054405, 0.03275303204313048, 0.23003852906294614, 0.12725728964353475, 0.05292143620168551, 0.19543750844318739, -0.08629149037142658, -0.19947202250950485, -0.2596285912112739, -0.05149271897175628, -0.23338396424371907, -0.007182875735328023, -0.0846426252420727, -0.18193782458124627, 0.42733746103974235, 0.0861219556377325, 0.1757530228704469, 0.017099121465092987, 0.24992831251146191, 0.22128991586761648, -0.01253573189720384, 0.04757700501503343, 0.25849639617989206, 0.1238999600824701, 0.07248618409363951, -0.23742567128193381, 0.019342534490821198, 0.010843016982076563] |
712.2952 | Partial Conway and iteration semirings | A Conway semiring is a semiring $S$ equipped with a unary operation $^*:S \to
S$, always called 'star', satisfying the sum star and product star identities.
It is known that these identities imply a Kleene type theorem. Some
computationally important semirings, such as $N$ or $N^{\rat}\llangle \Sigma^*
\rrangle$ of rational power series of words on $\Sigma$ with coefficients in
$N$, cannot have a total star operation satisfying the Conway identities. We
introduce here partial Conway semirings, which are semirings $S$ which have a
star operation defined only on an ideal of $S$; when the arguments are
appropriate, the operation satisfies the above identities. We develop the
general theory of partial Conway semirings and prove a Kleene theorem for this
generalization.
| cs.DM cs.LO | a conway semiring is a semiring s equipped with a unary operation s to s always called star satisfying the sum star and product star identities it is known that these identities imply a kleene type theorem some computationally important semirings such as n or nratllangle sigma rrangle of rational power series of words on sigma with coefficients in n cannot have a total star operation satisfying the conway identities we introduce here partial conway semirings which are semirings s which have a star operation defined only on an ideal of s when the arguments are appropriate the operation satisfies the above identities we develop the general theory of partial conway semirings and prove a kleene theorem for this generalization | [['a', 'conway', 'semiring', 'is', 'a', 'semiring', 's', 'equipped', 'with', 'a', 'unary', 'operation', 's', 'to', 's', 'always', 'called', 'star', 'satisfying', 'the', 'sum', 'star', 'and', 'product', 'star', 'identities', 'it', 'is', 'known', 'that', 'these', 'identities', 'imply', 'a', 'kleene', 'type', 'theorem', 'some', 'computationally', 'important', 'semirings', 'such', 'as', 'n', 'or', 'nratllangle', 'sigma', 'rrangle', 'of', 'rational', 'power', 'series', 'of', 'words', 'on', 'sigma', 'with', 'coefficients', 'in', 'n', 'can', 'not', 'have', 'a', 'total', 'star', 'operation', 'satisfying', 'the', 'conway', 'identities', 'we', 'introduce', 'here', 'partial', 'conway', 'semirings', 'which', 'are', 'semirings', 's', 'which', 'have', 'a', 'star', 'operation', 'defined', 'only', 'on', 'an', 'ideal', 'of', 's', 'when', 'the', 'arguments', 'are', 'appropriate', 'the', 'operation', 'satisfies', 'the', 'above', 'identities', 'we', 'develop', 'the', 'general', 'theory', 'of', 'partial', 'conway', 'semirings', 'and', 'prove', 'a', 'kleene', 'theorem', 'for', 'this', 'generalization']] | [-0.17316940620463964, 0.10889157031694291, -0.05052324179171895, 0.09556489194607518, -0.1387695645991092, -0.19117584701549883, 0.06679047054591744, 0.3304865879996214, -0.3376778138956676, -0.210575083088285, 0.1111843901637864, -0.28480122033506633, -0.13810641732804166, 0.17687402314283343, -0.10855830990088483, -0.03460809095801475, 0.03868581978604198, 0.14048909672613566, -0.10783768349598782, -0.30615758015968214, 0.3203122096873509, -0.039789697923697534, 0.1441360754931035, 0.02299742764638116, 0.10114254823808248, 0.007930672793493916, -0.049852699184945476, 0.01946158669112871, -0.15779251829790156, 0.07136725724946397, 0.2978329851757735, 0.17837909442799477, 0.23963930771375697, -0.40179069865650185, -0.1153521015153577, 0.11822266028126857, 0.0944065427252402, -0.0580699670361355, -0.022489329670982747, -0.20439015467030305, 0.1238141298284366, -0.24686766122467815, -0.1135939253823987, -0.07741477501112967, 0.09942631653587644, 0.07015268680794785, -0.31926807562704196, 0.014646230653549233, 0.16671310899158318, 0.12439250624411216, -0.0017564534476453748, -0.1183545136504108, -0.021314085406872133, 0.01815557205627556, -0.05526824866343911, 0.03347010411477337, 0.065777449348631, -0.08169697936585484, -0.1658581081001709, 0.35756693001215656, -0.02774394244188443, -0.19735763479645055, 0.10550473749948044, -0.14394477355914811, -0.19757350271878144, 0.09712216149103672, 0.005457261996343732, 0.1498192706416982, -0.10391248510240984, 0.13671537595849562, -0.19847842691621434, 0.10410416597151198, 0.17287441898758213, 0.08018279969934762, 0.1788568951577569, 0.07647440713481046, 0.09055173013281698, 0.1269699958929171, 0.033748886520819116, -0.024649161100387573, -0.3539484127036606, -0.16043695313856005, -0.08650295178716381, 0.14680562289637844, -0.07418471454123694, -0.17272453260763238, 0.31953564604433876, 0.035753184747106086, 0.11136882161954417, 0.13951065629759493, 0.21781119018172224, 0.15081787600162594, 0.13721080108856162, 0.0691977323188136, 0.051124724007725796, 0.24848097672996422, 0.05658145388588309, -0.11673968150377428, 0.0505243257774661, 0.19265683131137243] |
712.2953 | Hadronic-loop induced mass shifts in scalar heavy-light mesons | We calculate the mass shifts of heavy-light scalar mesons due to hadronic
loops under the assumption that these vanish for the groundstate heavy-light
mesons. The results show that the masses calculated in quark models can be
reduced significantly. We stress that the mass alone is not a signal for a
molecular interpretation. Both the resulting mass and the width suggest the
observed $D_0^*$ state could be a dressed $c\bar q$ state. We give further
predictions for the bottom scalar mesons which can be used to test the dressing
mechanism.
| hep-ph | we calculate the mass shifts of heavylight scalar mesons due to hadronic loops under the assumption that these vanish for the groundstate heavylight mesons the results show that the masses calculated in quark models can be reduced significantly we stress that the mass alone is not a signal for a molecular interpretation both the resulting mass and the width suggest the observed d_0 state could be a dressed cbar q state we give further predictions for the bottom scalar mesons which can be used to test the dressing mechanism | [['we', 'calculate', 'the', 'mass', 'shifts', 'of', 'heavylight', 'scalar', 'mesons', 'due', 'to', 'hadronic', 'loops', 'under', 'the', 'assumption', 'that', 'these', 'vanish', 'for', 'the', 'groundstate', 'heavylight', 'mesons', 'the', 'results', 'show', 'that', 'the', 'masses', 'calculated', 'in', 'quark', 'models', 'can', 'be', 'reduced', 'significantly', 'we', 'stress', 'that', 'the', 'mass', 'alone', 'is', 'not', 'a', 'signal', 'for', 'a', 'molecular', 'interpretation', 'both', 'the', 'resulting', 'mass', 'and', 'the', 'width', 'suggest', 'the', 'observed', 'd_0', 'state', 'could', 'be', 'a', 'dressed', 'cbar', 'q', 'state', 'we', 'give', 'further', 'predictions', 'for', 'the', 'bottom', 'scalar', 'mesons', 'which', 'can', 'be', 'used', 'to', 'test', 'the', 'dressing', 'mechanism']] | [-0.08356391255524051, 0.27228333396585974, -0.09963767708729157, 0.14157050491828638, -0.04065379219945897, -0.11321838712319732, 0.04178891691452499, 0.3584190445502153, -0.20038021504460427, -0.22173496965695633, -0.008220995411412853, -0.23940924873177924, -0.03465044844288672, 0.12520579171230953, 0.06332165980188365, 0.05503214975777135, 0.11204825820312364, 0.06457861755147912, -0.09377161600480505, -0.18954542235293415, 0.32046004261277367, -0.032801218880235815, 0.2021550042659379, 0.20172869155295925, -0.018721902402892208, -0.04853523311236601, 0.0472130759572087, -0.02469328309545356, -0.11064019615445064, 0.049466739910958187, 0.1804733861830387, 0.10099642474486838, 0.12851494278633194, -0.3675742860716046, -0.17437036336253114, 0.1337184521128957, 0.181641003912252, 0.1547417159786113, -0.023795433457564102, -0.2972644236189931, 0.1116291308700986, -0.18212213631970495, -0.16460195421293544, -0.14030070673789452, -0.031899021624514225, -0.053228853223322145, -0.34640150347180415, 0.09567243182571249, -0.01604269247167231, -0.062167298278949235, -0.10385794560895877, -0.20417866847488317, -0.09689814613849511, 0.05199669568872686, 0.083245944316771, 0.0845955149548552, 0.19143833048390538, -0.16385529998145745, -0.09947040681517945, 0.4178013874824797, -0.11691460819925402, -0.22876953335709116, 0.13246716597127947, -0.1535815949332011, -0.1073523655303576, 0.10730374013230706, 0.19741693653396508, 0.068040751637577, -0.16747022250646285, 0.05215673487609922, -0.06250905674840376, 0.21342852554451464, 0.08261213233443292, 0.06428812123479301, 0.2344703038296338, 0.08978393917976554, -0.06005086120887754, 0.08433876941477608, -0.07980140079377909, -0.07725354887576502, -0.3304052729201451, -0.14152774958232983, -0.1264143773888269, 0.0747874533220291, -0.08870099470254134, -0.10254681799979357, 0.40784966411968965, 0.12448493729010643, 0.26385925955065853, 0.049002727780103936, 0.3002268449099881, 0.16289379793020448, 0.11222733030870055, 0.11214870168942581, 0.335881197783217, 0.20396121364254294, 0.09677853533642346, -0.32671867264434695, 0.02012056884554665, 0.0676059965358189] |
712.2954 | Study of the exclusive $b \to u \ell^- \bar{\nu}_{\ell}$ decays in the
MSSM with and without R-parity violation | We study the exclusive $b \to u \ell^- \bar{\nu}_{\ell} (\ell=\tau,\mu,e)$
decays in the MSSM with and without R-parity violation. From the experimental
measurements of branching ratios $\mathcal{B}(B^-_u \to \tau^-
\bar{\nu}_{\tau})$, $\mathcal{B}(B^-_u \to M'^0 \ell'^- \bar{\nu}_{\ell'})$ and
$\mathcal{B}(\bar{B}^0_d \to M'^+ \ell'^- \bar{\nu}_{\ell'})$ $(\ell'=\mu,e,
M'=\pi,\rho)$, we derive new upper bounds on the relevant new physics
parameters within the decays. Using the constrained new physics parameter
spaces, we predict the charged Higgs effects and the R-parity violating effects
on the branching ratios, the normalized forward-backward asymmetries of charged
leptons, and the ratios of longitudinal to transverse polarization of the
vector mesons, which have not been measured or have not been well measured yet.
We find that the charged Higgs effects and the R-parity violating effects could
be large and measurable in some cases. Our results could be used to probe new
physics effects in the leptonic decays as well as the semileptonic decays, and
will correlate with searches for direct supersymmetric signals in future
experiments.
| hep-ph | we study the exclusive b to u ell barnu_ell elltaumue decays in the mssm with and without rparity violation from the experimental measurements of branching ratios mathcalbb_u to tau barnu_tau mathcalbb_u to m0 ell barnu_ell and mathcalbbarb0_d to m ell barnu_ell ellmue mpirho we derive new upper bounds on the relevant new physics parameters within the decays using the constrained new physics parameter spaces we predict the charged higgs effects and the rparity violating effects on the branching ratios the normalized forwardbackward asymmetries of charged leptons and the ratios of longitudinal to transverse polarization of the vector mesons which have not been measured or have not been well measured yet we find that the charged higgs effects and the rparity violating effects could be large and measurable in some cases our results could be used to probe new physics effects in the leptonic decays as well as the semileptonic decays and will correlate with searches for direct supersymmetric signals in future experiments | [['we', 'study', 'the', 'exclusive', 'b', 'to', 'u', 'ell', 'barnu_ell', 'elltaumue', 'decays', 'in', 'the', 'mssm', 'with', 'and', 'without', 'rparity', 'violation', 'from', 'the', 'experimental', 'measurements', 'of', 'branching', 'ratios', 'mathcalbb_u', 'to', 'tau', 'barnu_tau', 'mathcalbb_u', 'to', 'm0', 'ell', 'barnu_ell', 'and', 'mathcalbbarb0_d', 'to', 'm', 'ell', 'barnu_ell', 'ellmue', 'mpirho', 'we', 'derive', 'new', 'upper', 'bounds', 'on', 'the', 'relevant', 'new', 'physics', 'parameters', 'within', 'the', 'decays', 'using', 'the', 'constrained', 'new', 'physics', 'parameter', 'spaces', 'we', 'predict', 'the', 'charged', 'higgs', 'effects', 'and', 'the', 'rparity', 'violating', 'effects', 'on', 'the', 'branching', 'ratios', 'the', 'normalized', 'forwardbackward', 'asymmetries', 'of', 'charged', 'leptons', 'and', 'the', 'ratios', 'of', 'longitudinal', 'to', 'transverse', 'polarization', 'of', 'the', 'vector', 'mesons', 'which', 'have', 'not', 'been', 'measured', 'or', 'have', 'not', 'been', 'well', 'measured', 'yet', 'we', 'find', 'that', 'the', 'charged', 'higgs', 'effects', 'and', 'the', 'rparity', 'violating', 'effects', 'could', 'be', 'large', 'and', 'measurable', 'in', 'some', 'cases', 'our', 'results', 'could', 'be', 'used', 'to', 'probe', 'new', 'physics', 'effects', 'in', 'the', 'leptonic', 'decays', 'as', 'well', 'as', 'the', 'semileptonic', 'decays', 'and', 'will', 'correlate', 'with', 'searches', 'for', 'direct', 'supersymmetric', 'signals', 'in', 'future', 'experiments']] | [-0.06659687833089264, 0.2610941173887113, -0.018962081920471975, 0.16141113396734, -0.10063867047720124, -0.18744224710389973, 0.05105884935196627, 0.2729310188733507, -0.22088285926292883, -0.27381935231678656, 0.017722172173671426, -0.338162633459433, 0.0037288581122993493, 0.14987616677390178, 0.06604684159246972, 0.11793113000167069, 0.05125861985579831, -0.028237114447983915, -0.054897928562422746, -0.18493410480587044, 0.21098284425679595, 0.0178246284078341, 0.1718875711376313, 0.13212676460680087, -0.03267808041127864, -0.013065555124194361, -0.061975946294842287, -0.01214272875287179, -0.18519960089911364, 0.01975815824989695, 0.1866831325154635, 0.12480097981351719, 0.07657589280406682, -0.35215673123602753, -0.09184529504273087, 0.24595357855287148, 0.19645244022249245, 0.08579600557786762, -0.04240021602163324, -0.3746152458537836, 0.10240690136088233, -0.1559785554156406, -0.03986029900843278, -0.11923903178831097, 0.03544548696954734, -0.055223940186260735, -0.39066106645041143, 0.09018072412800393, -0.05626672940634307, 0.005046239196781243, 0.007813218634692021, -0.24773944539119838, -0.031750535640458113, 0.048803878686157987, 0.1759576085503795, 0.03336495068942895, 0.18329695284191985, -0.13289627460108022, -0.2236709503173188, 0.4013799657812342, -0.12649433492479148, -0.24543613023706712, 0.15357368683617095, -0.2618470220360905, -0.19386893220071216, 0.09244025085208704, 0.2770567658066284, 0.10768872374319471, -0.16237646571244113, 0.1572591877749801, -0.03843753830878995, 0.11101480400684523, 0.031192594904860017, 0.12252132838766557, 0.2202874845941551, 0.16866020019660938, -0.0138524965972465, 0.04789904793433379, -0.12256071245501517, -0.00015738299225631636, -0.4126056279910699, -0.14838216096977702, -0.04464910214301199, 0.08140703756671427, -0.026159333258601692, -0.059088428469112844, 0.37664729079115206, 0.08118180354999822, 0.2854156617424451, 0.022629672256152845, 0.28949185474193656, 0.06657117610884597, 0.09986335639150638, 0.03579975082539022, 0.3481563174902476, 0.16578750842309092, 0.12395208068774081, -0.2744779397078673, 0.05424955121416133, 0.023944877658504993] |
712.2955 | Pressure effects on the superconducting transition in nH-CaAlSi | We present a combined experimental and theoretical study of the effects of
pressure on T_c of the hexagonal layered superconductors nH-CaAlSi (n = 1, 5,
6), where nH labels the different stacking variants that were recently
discovered. Experimentally, the pressure dependence of T_c has been
investigated by measuring the magnetic susceptibility of single crystals up to
10 kbar. In contrast to previous results on polycrystalline samples, single
crystals with different stacking sequences display different pressure
dependences of T_c. 1H-CaAlSi shows a decrease of T_c with pressure, whereas 5H
and 6H-CaAlSi exhibit an increase of T_c with pressure. Ab-initio calculations
for 1H, 5H and 6H -CaAlSi reveal that an ultrasoft phonon branch associated to
out-of-plane vibrations of the Al-Si layers softens with pressure, leading to a
structural instability at high pressures. For 1H-CaAlSi the softening is not
sufficient to cause an increase of T_c, which is consistent with the present
experiments, but adverse to previous reports. For 5H and 6H the softening
provides the mechanism to understand the observed increase of T_c with
pressure. Calculations for hypothetical 2H and 3H stacking variants reveal
qualitative and quantitative differences.
| cond-mat.supr-con cond-mat.mtrl-sci | we present a combined experimental and theoretical study of the effects of pressure on t_c of the hexagonal layered superconductors nhcaalsi n 1 5 6 where nh labels the different stacking variants that were recently discovered experimentally the pressure dependence of t_c has been investigated by measuring the magnetic susceptibility of single crystals up to 10 kbar in contrast to previous results on polycrystalline samples single crystals with different stacking sequences display different pressure dependences of t_c 1hcaalsi shows a decrease of t_c with pressure whereas 5h and 6hcaalsi exhibit an increase of t_c with pressure abinitio calculations for 1h 5h and 6h caalsi reveal that an ultrasoft phonon branch associated to outofplane vibrations of the alsi layers softens with pressure leading to a structural instability at high pressures for 1hcaalsi the softening is not sufficient to cause an increase of t_c which is consistent with the present experiments but adverse to previous reports for 5h and 6h the softening provides the mechanism to understand the observed increase of t_c with pressure calculations for hypothetical 2h and 3h stacking variants reveal qualitative and quantitative differences | [['we', 'present', 'a', 'combined', 'experimental', 'and', 'theoretical', 'study', 'of', 'the', 'effects', 'of', 'pressure', 'on', 't_c', 'of', 'the', 'hexagonal', 'layered', 'superconductors', 'nhcaalsi', 'n', '1', '5', '6', 'where', 'nh', 'labels', 'the', 'different', 'stacking', 'variants', 'that', 'were', 'recently', 'discovered', 'experimentally', 'the', 'pressure', 'dependence', 'of', 't_c', 'has', 'been', 'investigated', 'by', 'measuring', 'the', 'magnetic', 'susceptibility', 'of', 'single', 'crystals', 'up', 'to', '10', 'kbar', 'in', 'contrast', 'to', 'previous', 'results', 'on', 'polycrystalline', 'samples', 'single', 'crystals', 'with', 'different', 'stacking', 'sequences', 'display', 'different', 'pressure', 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'qualitative', 'and', 'quantitative', 'differences']] | [-0.11282486669611165, 0.20430053560053918, -0.05137479686286321, -0.036118442808838754, -0.04388762893957904, -0.11863071156037941, 0.1122294323215292, 0.4140361388836529, -0.22187991021072379, -0.3370966933886662, -0.007193254315273743, -0.38062141571214514, -0.07442561000037567, 0.15371729937016718, 0.04891344413181538, 0.032935887034879534, -0.026520616744737557, -0.0016530009182118578, -0.12486492997441873, -0.2333093872566377, 0.2560989563070361, 0.0818361909313961, 0.3265982223031476, 0.1197865495911043, 0.020196296145383125, -0.05308736290895889, 0.08452994760012676, 0.02508520480574659, -0.1800528842784903, 0.012012963077742914, 0.2426859779664166, -0.08108048900853822, 0.1871174413463852, -0.4249141329271688, -0.25546363512445136, 0.01476249864417545, 0.10927111970470416, 0.09123023181119148, -0.06521535667047955, -0.21560381773861836, 0.10599040324948934, -0.10772723576005096, -0.11188439150097734, -0.12434901350604895, 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712.2956 | Twin stimulated amplification of light and matter waves in an
atom-photon pair laser | We consider ultracold atoms in a far detuned optical lattice orientated
across a high-Q optical resonator. Applying an external driving laser to the
atoms, which is red detuned from the cavity mode by one vibrational quantum,
induces cavity-enhanced sideband cooling. For a dense and cold enough atomic
ensemble we predict an oscillation threshold for optical Raman sideband lasing
concurrent with coherent matter-wave amplification. Above this oscillation
threshold photons and atoms in the lowest band are dominantly created pairwise
via stimulated emission with a strong suppression of competing spontaneous
processes. In close analogy to a nondegenerate parametric oscillator we find
sub-Poissonian photon statistics and almost perfect nonclassical atom-photon
number correlations. Injecting atoms in higher vibrational bands via tunneling
or incoherent scattering then leads to continuous, simultaneous generation of a
coherent atom beam and laser light with nonclassical atom-field correlations.
| quant-ph | we consider ultracold atoms in a far detuned optical lattice orientated across a highq optical resonator applying an external driving laser to the atoms which is red detuned from the cavity mode by one vibrational quantum induces cavityenhanced sideband cooling for a dense and cold enough atomic ensemble we predict an oscillation threshold for optical raman sideband lasing concurrent with coherent matterwave amplification above this oscillation threshold photons and atoms in the lowest band are dominantly created pairwise via stimulated emission with a strong suppression of competing spontaneous processes in close analogy to a nondegenerate parametric oscillator we find subpoissonian photon statistics and almost perfect nonclassical atomphoton number correlations injecting atoms in higher vibrational bands via tunneling or incoherent scattering then leads to continuous simultaneous generation of a coherent atom beam and laser light with nonclassical atomfield correlations | [['we', 'consider', 'ultracold', 'atoms', 'in', 'a', 'far', 'detuned', 'optical', 'lattice', 'orientated', 'across', 'a', 'highq', 'optical', 'resonator', 'applying', 'an', 'external', 'driving', 'laser', 'to', 'the', 'atoms', 'which', 'is', 'red', 'detuned', 'from', 'the', 'cavity', 'mode', 'by', 'one', 'vibrational', 'quantum', 'induces', 'cavityenhanced', 'sideband', 'cooling', 'for', 'a', 'dense', 'and', 'cold', 'enough', 'atomic', 'ensemble', 'we', 'predict', 'an', 'oscillation', 'threshold', 'for', 'optical', 'raman', 'sideband', 'lasing', 'concurrent', 'with', 'coherent', 'matterwave', 'amplification', 'above', 'this', 'oscillation', 'threshold', 'photons', 'and', 'atoms', 'in', 'the', 'lowest', 'band', 'are', 'dominantly', 'created', 'pairwise', 'via', 'stimulated', 'emission', 'with', 'a', 'strong', 'suppression', 'of', 'competing', 'spontaneous', 'processes', 'in', 'close', 'analogy', 'to', 'a', 'nondegenerate', 'parametric', 'oscillator', 'we', 'find', 'subpoissonian', 'photon', 'statistics', 'and', 'almost', 'perfect', 'nonclassical', 'atomphoton', 'number', 'correlations', 'injecting', 'atoms', 'in', 'higher', 'vibrational', 'bands', 'via', 'tunneling', 'or', 'incoherent', 'scattering', 'then', 'leads', 'to', 'continuous', 'simultaneous', 'generation', 'of', 'a', 'coherent', 'atom', 'beam', 'and', 'laser', 'light', 'with', 'nonclassical', 'atomfield', 'correlations']] | [-0.12794148435046815, 0.32542892050042754, -0.013542218493176219, 0.014594706996897425, 0.004433443422253797, -0.21501004216058747, 0.13828093780245146, 0.48980887889511127, -0.2593261822248283, -0.20192434940406162, -0.0865255949767374, -0.3136282823170009, -0.025727225204362818, 0.2219011402213136, 0.049579383792740336, 0.055595428048484566, 0.05890125782647426, -0.06516049428761977, 0.06644090030180372, -0.12225603927230544, 0.27904606827339024, 0.036943163941243154, 0.34390841473730793, 0.0046085200940623235, 0.12322551411563072, 0.019534829683412892, 0.09397654779309379, -0.1263143033636194, -0.06347229610453697, 0.09369240716720621, 0.25177828522156115, -0.03649216494185553, 0.26675016499812837, -0.451167633537662, -0.21144320326519833, 0.13127621648954632, 0.19230724711593686, 0.26247879697694915, -0.05010972669064675, -0.3347478048147067, -0.08928910310656858, -0.13493927470340894, -0.11327573463347727, -0.08766715536720754, -0.013952754873215505, 0.04385983863798226, -0.29715719897522713, 0.05609494627898802, 0.05728336004434875, 0.10975341309550339, -0.008255157159114986, 0.03581102305189774, -0.017829614259518574, -0.028769821134409394, -0.09946063849518237, 0.0030862246083257637, 0.23075827147661493, -0.1471855570089774, -0.11795754979054134, 0.37861966389607626, -0.15703286099976496, -0.03158397324538479, 0.17637184320652075, -0.1832090940805611, -0.013165349568884847, 0.22292751358633023, 0.11062479575680893, 0.05003069488304681, -0.08828827107082242, -0.04322085871219473, -0.002121183801057708, 0.23953284627919935, 0.19641393106228308, 0.1931763699133138, 0.2510969500205871, 0.1297422709969291, 0.04463957879098429, 0.22226408968065475, -0.1193292350217498, -0.06514365933970481, -0.24583014118336682, -0.05265174806286729, -0.1947371716502686, 0.09431368641832007, -0.026445194328055324, -0.13248380878096636, 0.3749862777143447, 0.08327343427927057, 0.13833407709456008, -0.09898932585665667, 0.3591856316298894, 0.19336560710697717, 0.02337083314963873, -0.02056994079949631, 0.36043294413906074, 0.2266316227884828, 0.04087891413128354, -0.3435289456789125, -0.08990539800024767, -0.04746256656506085] |
712.2957 | Heisenberg Algebra, Umbral Calculus and Orthogonal Polynomials | Umbral calculus can be viewed as an abstract theory of the Heisenberg
commutation relation $[\hat P,\hat M]=1$. In ordinary quantum mechanics $\hat
P$ is the derivative and $\hat M$ the coordinate operator. Here we shall
realize $\hat P$ as a second order differential operator and $\hat M$ as a
first order integral one. We show that this makes it possible to solve large
classes of differential and integro-differential equations and to introduce new
classes of orthogonal polynomials, related to Laguerre polynomials. These
polynomials are particularly well suited for describing so called flatenned
beams in laser theory
| math-ph math.MP | umbral calculus can be viewed as an abstract theory of the heisenberg commutation relation hat phat m1 in ordinary quantum mechanics hat p is the derivative and hat m the coordinate operator here we shall realize hat p as a second order differential operator and hat m as a first order integral one we show that this makes it possible to solve large classes of differential and integrodifferential equations and to introduce new classes of orthogonal polynomials related to laguerre polynomials these polynomials are particularly well suited for describing so called flatenned beams in laser theory | [['umbral', 'calculus', 'can', 'be', 'viewed', 'as', 'an', 'abstract', 'theory', 'of', 'the', 'heisenberg', 'commutation', 'relation', 'hat', 'phat', 'm1', 'in', 'ordinary', 'quantum', 'mechanics', 'hat', 'p', 'is', 'the', 'derivative', 'and', 'hat', 'm', 'the', 'coordinate', 'operator', 'here', 'we', 'shall', 'realize', 'hat', 'p', 'as', 'a', 'second', 'order', 'differential', 'operator', 'and', 'hat', 'm', 'as', 'a', 'first', 'order', 'integral', 'one', 'we', 'show', 'that', 'this', 'makes', 'it', 'possible', 'to', 'solve', 'large', 'classes', 'of', 'differential', 'and', 'integrodifferential', 'equations', 'and', 'to', 'introduce', 'new', 'classes', 'of', 'orthogonal', 'polynomials', 'related', 'to', 'laguerre', 'polynomials', 'these', 'polynomials', 'are', 'particularly', 'well', 'suited', 'for', 'describing', 'so', 'called', 'flatenned', 'beams', 'in', 'laser', 'theory']] | [-0.1284722871588249, 0.13158774616726748, -0.10710686188754871, 0.10644908786114109, -0.16417823502499806, -0.1588336598716284, -0.07163034767206562, 0.34362300220680864, -0.3500008226225251, -0.25589908322221355, 0.06038352259875913, -0.28486584709761176, -0.18989255196954075, 0.1763840107688386, -0.10865579472952767, 0.06192788252803056, -0.01086393196969048, 0.06813811677459039, -0.1125858931440713, -0.19292401922131447, 0.3177648017575082, -0.021012496179901065, 0.156732265327714, -0.05370593857706377, 0.12789309626739276, 0.010296915922509996, -0.0063085052233777545, -0.02202474445006565, -0.16222435230378515, 0.0960483283245642, 0.31001362146711664, 0.07410168301951336, 0.242415518107775, -0.39033741192205956, -0.07099811344554549, 0.12124847414854326, 0.16338861881216105, 0.026324637604289148, 0.03063911725031702, -0.2760187036308803, 0.033175930910204585, -0.1712024566374327, -0.20157011526048577, -0.14026105900319588, 0.03652020896735944, 0.03984691695261158, -0.3038250523472303, 0.019882620326978597, 0.07665824650076071, 0.05939016933154658, 0.016736763628738882, -0.12776160006852527, -0.0009251270124590711, 0.04447047740809227, -0.0237787738393404, 0.053141329604152, 0.06252300860360265, -0.0835338170762713, -0.1348077188589071, 0.42333408343164547, -0.0678051459970639, -0.2467590696496987, 0.06685269391409268, -0.15825227969571165, -0.1521122775089584, 0.01690450136794473, 0.12107618927563492, 0.17132779485300967, -0.09569909117723766, 0.1466568857799039, -0.05832146794388169, 0.10588043580615991, 0.09779280681457174, 0.036632805626447267, 0.11018753687998181, 0.028610827028751375, 0.08905090562214976, 0.1257259785283455, -0.01042181318135638, -0.12726619546117848, -0.37370973892117804, -0.2172870367986003, -0.1481934237146848, 0.10305817950713007, -0.08607978046761433, -0.1695291678960386, 0.353888443896645, 0.10676305341583334, 0.15982911942195835, 0.03055978761985898, 0.21033063079965741, 0.22081903868820518, 0.058486768483846006, 0.02650414158737189, 0.1430958020255754, 0.22695102074036472, 0.09839739123555391, -0.19221672599822723, -0.057731143679273754, 0.16394738587795904] |
712.2958 | Power-Aware Real-Time Scheduling upon Identical Multiprocessor Platforms | In this paper, we address the power-aware scheduling of sporadic
constrained-deadline hard real-time tasks using dynamic voltage scaling upon
multiprocessor platforms. We propose two distinct algorithms. Our first
algorithm is an off-line speed determination mechanism which provides an
identical speed for each processor. That speed guarantees that all deadlines
are met if the jobs are scheduled using EDF. The second algorithm is an on-line
and adaptive speed adjustment mechanism which reduces the energy consumption
while the system is running.
| cs.OS | in this paper we address the poweraware scheduling of sporadic constraineddeadline hard realtime tasks using dynamic voltage scaling upon multiprocessor platforms we propose two distinct algorithms our first algorithm is an offline speed determination mechanism which provides an identical speed for each processor that speed guarantees that all deadlines are met if the jobs are scheduled using edf the second algorithm is an online and adaptive speed adjustment mechanism which reduces the energy consumption while the system is running | [['in', 'this', 'paper', 'we', 'address', 'the', 'poweraware', 'scheduling', 'of', 'sporadic', 'constraineddeadline', 'hard', 'realtime', 'tasks', 'using', 'dynamic', 'voltage', 'scaling', 'upon', 'multiprocessor', 'platforms', 'we', 'propose', 'two', 'distinct', 'algorithms', 'our', 'first', 'algorithm', 'is', 'an', 'offline', 'speed', 'determination', 'mechanism', 'which', 'provides', 'an', 'identical', 'speed', 'for', 'each', 'processor', 'that', 'speed', 'guarantees', 'that', 'all', 'deadlines', 'are', 'met', 'if', 'the', 'jobs', 'are', 'scheduled', 'using', 'edf', 'the', 'second', 'algorithm', 'is', 'an', 'online', 'and', 'adaptive', 'speed', 'adjustment', 'mechanism', 'which', 'reduces', 'the', 'energy', 'consumption', 'while', 'the', 'system', 'is', 'running']] | [-0.23354924273311714, 0.08823317588698207, -0.08076042076572776, -0.004657107196111656, -0.10603076027989199, -0.22875395987795877, 0.08969716535132567, 0.46493461311948076, -0.2659599004619861, -0.35282129568012455, 0.11879463733580624, -0.20534764609853678, -0.12020098658048702, 0.22299226671693068, -0.11942805384014603, 0.12176441252555792, 0.1027478704912753, 0.03867184797477248, -0.0017151229608143809, -0.31174309259351296, 0.19921686202051897, 0.09229697052483694, 0.3378331743982397, 0.05729702782899707, 0.1232206704201106, 0.011132982647918824, 0.01677874850604353, -0.032297443315575394, -0.058856427452351624, 0.047984205204050376, 0.25080307577058814, 0.19918912834240288, 0.33581335062184664, -0.44712729796861544, -0.10967522803576121, 0.11734696685136119, 0.1456350123368298, 0.04068814357742667, -0.048606508240528125, -0.1916038906555387, 0.09772746933364793, -0.1877748126022612, -0.017413936779374563, -0.07505244130999604, -0.027429524499663634, 0.02783849540010354, -0.28605199133670783, 0.019510177317770976, 0.006360680843361571, -0.015827748264315763, -0.09664410063879023, -0.06233129778116517, 0.10569454615499495, 0.14236520689394902, 0.039077789737854765, 0.027049513810750426, 0.1510968035487812, -0.10340675598016315, -0.21269169563863757, 0.41154905526509766, 0.033955748920930146, -0.1429203888755056, 0.14714192719304864, 0.03391844264078367, -0.1968202937889514, 0.13469346146146424, 0.25434476324015215, 0.09261120831051582, -0.202878431747137, 0.03805151413404088, -0.0059970141376687, 0.21764416689689778, 0.048590317950583994, -0.015389341471976117, 0.1100014482707351, 0.2447733303555582, 0.13446051368041884, 0.12511116473735134, -0.05061404115838718, -0.08785619386884419, -0.2476756629958466, -0.14234057439585465, -0.17074896495559405, -0.07157098144717232, -0.12017918670460835, -0.10519350918976567, 0.3979443809654139, 0.17889372827603092, 0.1502099303127844, 0.15531689341510116, 0.43421709431406064, 0.1521814636889067, 0.051653772810639084, 0.2580428294118352, 0.1750121715425549, -0.06007482898952086, 0.17101275950634875, -0.2581267977414116, 0.08876808552377963, 0.057802085953328426] |
712.2959 | Joint Source-Channel Coding Revisited: Information-Spectrum Approach | Given a general source with countably infinite source alphabet and a general
channel with arbitrary abstract channel input/channel output alphabets, we
study the joint source-channel coding problem from the information-spectrum
point of view. First, we generalize Feinstein's lemma (direct part) and
Verdu-Han's lemma (converse part) so as to be applicable to the general joint
source-channel coding problem. Based on these lemmas, we establish a sufficient
condition as well as a necessary condition for the source to be reliably
transmissible over the channel with asymptotically vanishing probability of
error. It is shown that our sufficient condition is equivalent to the
sufficient condition derived by Vembu, Verdu and Steinberg, whereas our
necessary condition is shown to be stronger than or equivalent to the necessary
condition derived by them. It turns out, as a direct consequence, that
separation principle in a relevantly generalized sense holds for a wide class
of sources and channels, as was shown in a quite dfifferent manner by Vembu,
Verdu and Steinberg. It should also be remarked that a nice duality is found
between our necessary and sufficient conditions, whereas we cannot fully enjoy
such a duality between the necessary condition and the sufficient condition by
Vembu, Verdu and Steinberg. In addition, we demonstrate a sufficient condition
as well as a necessary condition for the epsilon-transmissibility. Finally, the
separation theorem of the traditional standard form is shown to hold for the
class of sources and channels that satisfy the semi-strong converse property.
| cs.IT math.IT | given a general source with countably infinite source alphabet and a general channel with arbitrary abstract channel inputchannel output alphabets we study the joint sourcechannel coding problem from the informationspectrum point of view first we generalize feinsteins lemma direct part and verduhans lemma converse part so as to be applicable to the general joint sourcechannel coding problem based on these lemmas we establish a sufficient condition as well as a necessary condition for the source to be reliably transmissible over the channel with asymptotically vanishing probability of error it is shown that our sufficient condition is equivalent to the sufficient condition derived by vembu verdu and steinberg whereas our necessary condition is shown to be stronger than or equivalent to the necessary condition derived by them it turns out as a direct consequence that separation principle in a relevantly generalized sense holds for a wide class of sources and channels as was shown in a quite dfifferent manner by vembu verdu and steinberg it should also be remarked that a nice duality is found between our necessary and sufficient conditions whereas we cannot fully enjoy such a duality between the necessary condition and the sufficient condition by vembu verdu and steinberg in addition we demonstrate a sufficient condition as well as a necessary condition for the epsilontransmissibility finally the separation theorem of the traditional standard form is shown to hold for the class of sources and channels that satisfy the semistrong converse property | [['given', 'a', 'general', 'source', 'with', 'countably', 'infinite', 'source', 'alphabet', 'and', 'a', 'general', 'channel', 'with', 'arbitrary', 'abstract', 'channel', 'inputchannel', 'output', 'alphabets', 'we', 'study', 'the', 'joint', 'sourcechannel', 'coding', 'problem', 'from', 'the', 'informationspectrum', 'point', 'of', 'view', 'first', 'we', 'generalize', 'feinsteins', 'lemma', 'direct', 'part', 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712.296 | Event-Driven Simulation of the Dynamics of Hard Ellipsoids | We introduce a novel algorithm to perform event-driven simulations of hard
rigid bodies of arbitrary shape, that relies on the evaluation of the geometric
distance. In the case of a monodisperse system of uniaxial hard ellipsoids,we
perform molecular dynamics simulations varying the aspect-ratio X0 and the
packing fraction phi. We evaluate the translational Dtrans and the rotational
Drot diffusion coefficient and the associated isodiffusivity lines in the
phi-X0 plane. We observe a decoupling of the translational and rotational
dynamics which generates an almost perpendicular crossing of the Dtrans and
Drot isodiffusivity lines. While the self intermediate scattering function
exhibits stretched relaxation, i.e. glassy dynamics, only for large phi and X0
about equals to 1, the second order orientational correlator C2(t) shows
stretching only for large and small X0 values. We discuss these findings in the
context of a possible pre-nematic order driven glass transition.
| cond-mat.soft cond-mat.mtrl-sci | we introduce a novel algorithm to perform eventdriven simulations of hard rigid bodies of arbitrary shape that relies on the evaluation of the geometric distance in the case of a monodisperse system of uniaxial hard ellipsoidswe perform molecular dynamics simulations varying the aspectratio x0 and the packing fraction phi we evaluate the translational dtrans and the rotational drot diffusion coefficient and the associated isodiffusivity lines in the phix0 plane we observe a decoupling of the translational and rotational dynamics which generates an almost perpendicular crossing of the dtrans and drot isodiffusivity lines while the self intermediate scattering function exhibits stretched relaxation ie glassy dynamics only for large phi and x0 about equals to 1 the second order orientational correlator c2t shows stretching only for large and small x0 values we discuss these findings in the context of a possible prenematic order driven glass transition | [['we', 'introduce', 'a', 'novel', 'algorithm', 'to', 'perform', 'eventdriven', 'simulations', 'of', 'hard', 'rigid', 'bodies', 'of', 'arbitrary', 'shape', 'that', 'relies', 'on', 'the', 'evaluation', 'of', 'the', 'geometric', 'distance', 'in', 'the', 'case', 'of', 'a', 'monodisperse', 'system', 'of', 'uniaxial', 'hard', 'ellipsoidswe', 'perform', 'molecular', 'dynamics', 'simulations', 'varying', 'the', 'aspectratio', 'x0', 'and', 'the', 'packing', 'fraction', 'phi', 'we', 'evaluate', 'the', 'translational', 'dtrans', 'and', 'the', 'rotational', 'drot', 'diffusion', 'coefficient', 'and', 'the', 'associated', 'isodiffusivity', 'lines', 'in', 'the', 'phix0', 'plane', 'we', 'observe', 'a', 'decoupling', 'of', 'the', 'translational', 'and', 'rotational', 'dynamics', 'which', 'generates', 'an', 'almost', 'perpendicular', 'crossing', 'of', 'the', 'dtrans', 'and', 'drot', 'isodiffusivity', 'lines', 'while', 'the', 'self', 'intermediate', 'scattering', 'function', 'exhibits', 'stretched', 'relaxation', 'ie', 'glassy', 'dynamics', 'only', 'for', 'large', 'phi', 'and', 'x0', 'about', 'equals', 'to', '1', 'the', 'second', 'order', 'orientational', 'correlator', 'c2t', 'shows', 'stretching', 'only', 'for', 'large', 'and', 'small', 'x0', 'values', 'we', 'discuss', 'these', 'findings', 'in', 'the', 'context', 'of', 'a', 'possible', 'prenematic', 'order', 'driven', 'glass', 'transition']] | [-0.1878439174502713, 0.16099677178365926, -0.0682868378206739, 0.01343943999256108, -0.021521066593528867, -0.11630913467153156, 0.025288737631945623, 0.39541283113841746, -0.2707303778147794, -0.2544052516170543, 0.05939425324783292, -0.26845149192021045, -0.1203464607828759, 0.11826269123904246, 0.04013890981014228, 0.041568113942467275, 0.007053481131832269, 0.008407066105496434, -0.0890892132929955, -0.1730524549485191, 0.2522997915771582, -2.5533437862885084e-05, 0.2429173935151143, 0.054667949744352816, 0.12569221544662396, 0.024200297133300266, 0.03341132373106834, 0.02169330891811376, -0.20260477601576693, 0.0777767123587483, 0.15217245715207978, 0.010902769746352656, 0.1975136337091597, -0.40378918992221463, -0.14265196730898652, 0.07636176047531767, 0.1414604199557773, 0.09422157585483527, -0.007255257989226324, -0.24013814851541151, 0.07348474601565076, -0.11218361845977015, -0.1652499318957034, -0.089823711640034, 0.03738457716586028, 0.03622879049064015, -0.24670625804997176, 0.13578269925477693, 0.08518786707109095, 0.08326964306799199, -0.08370232600182724, -0.09089730390123085, -0.03853181202053394, 0.1084324335562159, 0.06641775431955675, 0.05291993361261251, 0.17880193933027147, -0.13915172004070353, -0.07197813804616494, 0.4085605633746591, -0.05820907535627752, -0.15646582808372356, 0.20568015982175794, -0.18221208820347307, -0.13463352912728735, 0.21437401459853855, 0.17219399825649725, 0.13536150151823492, -0.08404783327668476, 0.06645316623608588, -0.010352370376102359, 0.21816638717762857, 0.06517105005688215, -0.030736970487419222, 0.19322932168519755, 0.14313194898741066, 0.038769253704649995, 0.20468501233505823, -0.14184235621841704, -0.13924109528285933, -0.2808828595322188, -0.1610830731199143, -0.177579664730755, 0.05100689496067788, -0.12183725120587251, -0.17036908880333004, 0.3277753879644459, 0.10413066428338962, 0.23172759377270294, 0.07101401965981416, 0.2666787042369624, 0.07672600599806488, 0.03615467691385328, 0.05804679559195321, 0.21963943925974289, 0.12205256068268322, 0.10609716268611415, -0.2801902152402343, 0.05235580498940586, 0.023694110208479086] |
712.2961 | The frequency distribution of the height above the Galactic plane for
the novae | In order to examine the hypothesis of the existence of two different kinds of
nova populations in the Galaxy - 'disk' novae and 'bulge' novae - the frequency
distribution in the z-direction was obtained for 64 novae. The fact that large
number of fast novae related to disk novae are found at a significant distance
from the Galactic plane (up to z~3700 pc) can't result from photometric
measurements errors. Slow novae considered to belong to bulge novae show more
close concentration to the Galactic plane (z<1700 pc). A Kolmogorov-Smirnov
test run on the data showed that the two populations hypothesis probability
amounts to 95.56%.
| astro-ph | in order to examine the hypothesis of the existence of two different kinds of nova populations in the galaxy disk novae and bulge novae the frequency distribution in the zdirection was obtained for 64 novae the fact that large number of fast novae related to disk novae are found at a significant distance from the galactic plane up to z3700 pc cant result from photometric measurements errors slow novae considered to belong to bulge novae show more close concentration to the galactic plane z1700 pc a kolmogorovsmirnov test run on the data showed that the two populations hypothesis probability amounts to 9556 | [['in', 'order', 'to', 'examine', 'the', 'hypothesis', 'of', 'the', 'existence', 'of', 'two', 'different', 'kinds', 'of', 'nova', 'populations', 'in', 'the', 'galaxy', 'disk', 'novae', 'and', 'bulge', 'novae', 'the', 'frequency', 'distribution', 'in', 'the', 'zdirection', 'was', 'obtained', 'for', '64', 'novae', 'the', 'fact', 'that', 'large', 'number', 'of', 'fast', 'novae', 'related', 'to', 'disk', 'novae', 'are', 'found', 'at', 'a', 'significant', 'distance', 'from', 'the', 'galactic', 'plane', 'up', 'to', 'z3700', 'pc', 'cant', 'result', 'from', 'photometric', 'measurements', 'errors', 'slow', 'novae', 'considered', 'to', 'belong', 'to', 'bulge', 'novae', 'show', 'more', 'close', 'concentration', 'to', 'the', 'galactic', 'plane', 'z1700', 'pc', 'a', 'kolmogorovsmirnov', 'test', 'run', 'on', 'the', 'data', 'showed', 'that', 'the', 'two', 'populations', 'hypothesis', 'probability', 'amounts', 'to', '9556']] | [-0.05760155239491724, 0.06208537781611085, -0.07178826273884624, 0.15388110389001666, -0.05348515355028212, -0.10014890981838107, 0.10409760274924337, 0.38362754685804246, -0.23356136601418256, -0.32955665099900217, 0.025111202626721934, -0.34023156769573687, -0.009089044407010078, 0.2620827002148144, -0.08726774156559258, 0.008363103021401912, 0.11873045259504579, -0.07698784833773971, -0.04952892455738038, -0.3281555553339422, 0.2470470155403018, 0.024000221198657527, 0.1666746160387993, -0.14832868174649774, 0.03551095211296342, -0.09751822566147894, -0.039742835788056256, -0.10086370884091593, -0.10061230584120494, 0.04285992571618408, 0.22353879667585716, 0.11812509700655938, 0.2012785793002695, -0.38440006408840416, -0.21462984300218524, 0.11502916532102972, 0.19331563994521275, 0.031157353464514016, -0.024373224963928807, -0.226238569105044, 0.08794570251833647, -0.14357633942738177, -0.20599806699901818, 0.08435869107954204, 0.07357002167962491, 0.06933402013033628, -0.18860375663265586, 0.13381996298208831, 0.08145635785069316, 0.07952158926054835, -0.07497774858027696, -0.10617362803779543, -0.01863437351770699, 0.07898480648174883, 0.11800548115745187, 0.09894414145033807, 0.12985055604949594, -0.06064230258576572, -0.05873546017333865, 0.3603822350502014, -0.06519278459367342, -0.026262881141155957, 0.27738715189509094, -0.25516392989084125, -0.16599399415310473, 0.11983244882896543, 0.19606359815690666, 0.08316977819427848, -0.19311756168841385, 0.0009703870111843571, 0.00016963059548288583, 0.20560650210827588, 0.05510808564373292, 0.030052950519748264, 0.26713430231437085, 0.054957659936044366, 0.03998464336618781, 0.10884060671553016, -0.27640266402391717, -0.11468551133293658, -0.2525577566679567, -0.11232360638794489, -0.1652182425954379, 0.08467139214044436, -0.14497920114998122, -0.1078645056206733, 0.325746480980888, 0.09514642503578216, 0.23123502642614768, 0.03073781459068414, 0.24511385964229704, 0.01450710357981734, 0.11485621616477147, 0.15471094394568355, 0.337539229253307, 0.1915546438470483, 0.0940234895562753, -0.21898503481643275, 0.10964612795040012, 0.00630055584711954] |
712.2962 | The first Hochschild cohomology group of a schurian cluster-tilted
algebra | Given a cluster-tilted algebra B we study its first Hochschild cohomology
group HH^1(B) with coefficients in the B-B-bimodule B. We find several
consequences when B is representation-finite, and also in the case where B is
cluster-tilted of type \tilde{\mathbb{A}}.
| math.RA math.RT | given a clustertilted algebra b we study its first hochschild cohomology group hh1b with coefficients in the bbbimodule b we find several consequences when b is representationfinite and also in the case where b is clustertilted of type tildemathbba | [['given', 'a', 'clustertilted', 'algebra', 'b', 'we', 'study', 'its', 'first', 'hochschild', 'cohomology', 'group', 'hh1b', 'with', 'coefficients', 'in', 'the', 'bbbimodule', 'b', 'we', 'find', 'several', 'consequences', 'when', 'b', 'is', 'representationfinite', 'and', 'also', 'in', 'the', 'case', 'where', 'b', 'is', 'clustertilted', 'of', 'type', 'tildemathbba']] | [-0.20124326230814824, 0.03639758731692265, -0.00789458441357009, -0.0037778077396349264, -0.12651852550558174, -0.19973140393789762, -0.006360203935167728, 0.35900784828341925, -0.37748770979352486, -0.14743475305537382, 0.10439896420575678, -0.20187958540060583, -0.1893298702362256, 0.15382147234124252, -0.13521104351354715, -0.11570895967246869, 0.07106470606791285, 0.17776888088347056, -0.062886513184565, -0.29619918902141923, 0.37672098281864935, -0.04124130564144789, 0.1363401782209388, 0.011364071785161892, 0.017066909573399104, 0.00874459247988386, -0.03376601423877172, -0.02066563327725117, -0.20070056459651545, 0.016411689960827622, 0.2575179607822345, 0.060163516933337234, 0.1857866876734755, -0.2939949845178769, 0.0009173735832938781, 0.19012254871762332, 0.11181660767835684, 0.024554309411308706, -0.023784036174989663, -0.2513197555314176, 0.15978776720853952, -0.2975173704326153, -0.08385634498718457, -0.04463065090851906, 0.20571102413277215, -0.029422156709747817, -0.32327031621184105, 0.05046120631577184, 0.07172242112648793, 0.1711630163093408, -0.10174529321599178, -0.12527461555332708, -0.09513558031847844, 0.05857907667627725, -0.029924164466464367, 0.04905506074786759, 0.08914107120094392, -0.10340605480357623, -0.15304758820014122, 0.4120383151830771, -0.07829850106141888, -0.18970307885693052, 0.15082005094378614, -0.27606753207361084, -0.23117976361073744, 0.010878584192444881, 0.02908338608745581, 0.16475630029797173, -0.010813662730446922, 0.24413473903983593, -0.12196131339535499, 0.03102872174424239, 0.03255588434732113, -0.014785916902698003, 0.09697036250518301, 0.08156956679139955, 0.014100154085705677, 0.14832291312706777, -0.03129929581131691, 0.04467987535425868, -0.36622387304519993, -0.22967819212816465, -0.07120705586977494, 0.12296561834712823, -0.0829679972058586, -0.10380914862243792, 0.3764075813576197, 0.09400854293161477, 0.2100956545999417, 0.074041189172138, 0.16618761636215287, 0.041987793758893624, 0.06984716574422634, 0.07814884455635762, 0.12039094454107377, 0.2771064965770795, 0.01742041989778861, -0.1592401879815719, -0.040741037063969254, 0.2135096415399741] |
712.2963 | Algebraic Characterization of CNOT-Based Quantum Circuits with its
Applications on Logic Synthesis | The exponential speed up of quantum algorithms and the fundamental limits of
current CMOS process for future design technology have directed attentions
toward quantum circuits. In this paper, the matrix specification of a broad
category of quantum circuits, i.e. CNOT-based circuits, are investigated. We
prove that the matrix elements of CNOT-based circuits can only be zeros or
ones. In addition, the columns or rows of such a matrix have exactly one
element with the value of 1. Furthermore, we show that these specifications can
be used to synthesize CNOT-based quantum circuits. In other words, a new scheme
is introduced to convert the matrix representation into its SOP equivalent
using a novel quantum-based Karnaugh map extension. We then apply a
search-based method to transform the obtained SOP into a CNOT-based circuit.
Experimental results prove the correctness of the proposed concept.
| quant-ph | the exponential speed up of quantum algorithms and the fundamental limits of current cmos process for future design technology have directed attentions toward quantum circuits in this paper the matrix specification of a broad category of quantum circuits ie cnotbased circuits are investigated we prove that the matrix elements of cnotbased circuits can only be zeros or ones in addition the columns or rows of such a matrix have exactly one element with the value of 1 furthermore we show that these specifications can be used to synthesize cnotbased quantum circuits in other words a new scheme is introduced to convert the matrix representation into its sop equivalent using a novel quantumbased karnaugh map extension we then apply a searchbased method to transform the obtained sop into a cnotbased circuit experimental results prove the correctness of the proposed concept | [['the', 'exponential', 'speed', 'up', 'of', 'quantum', 'algorithms', 'and', 'the', 'fundamental', 'limits', 'of', 'current', 'cmos', 'process', 'for', 'future', 'design', 'technology', 'have', 'directed', 'attentions', 'toward', 'quantum', 'circuits', 'in', 'this', 'paper', 'the', 'matrix', 'specification', 'of', 'a', 'broad', 'category', 'of', 'quantum', 'circuits', 'ie', 'cnotbased', 'circuits', 'are', 'investigated', 'we', 'prove', 'that', 'the', 'matrix', 'elements', 'of', 'cnotbased', 'circuits', 'can', 'only', 'be', 'zeros', 'or', 'ones', 'in', 'addition', 'the', 'columns', 'or', 'rows', 'of', 'such', 'a', 'matrix', 'have', 'exactly', 'one', 'element', 'with', 'the', 'value', 'of', '1', 'furthermore', 'we', 'show', 'that', 'these', 'specifications', 'can', 'be', 'used', 'to', 'synthesize', 'cnotbased', 'quantum', 'circuits', 'in', 'other', 'words', 'a', 'new', 'scheme', 'is', 'introduced', 'to', 'convert', 'the', 'matrix', 'representation', 'into', 'its', 'sop', 'equivalent', 'using', 'a', 'novel', 'quantumbased', 'karnaugh', 'map', 'extension', 'we', 'then', 'apply', 'a', 'searchbased', 'method', 'to', 'transform', 'the', 'obtained', 'sop', 'into', 'a', 'cnotbased', 'circuit', 'experimental', 'results', 'prove', 'the', 'correctness', 'of', 'the', 'proposed', 'concept']] | [-0.08637176526428984, 0.07603178815681674, -0.05150504693683746, 0.004537182078316658, -0.04344192744909431, -0.17515879055726336, 0.05174015923118447, 0.40721759215506503, -0.3098574127037105, -0.23513779168774326, 0.10940242969521435, -0.2505724528241608, -0.18644757977881127, 0.2173839907748993, -0.06570050076886395, 0.1194630558665326, 0.05337092455932133, 0.03556141614404728, -0.07622855360596273, -0.22804466659779385, 0.2625326404897429, -0.009038523707217236, 0.28918259215487585, 0.010548564176604474, 0.1161429235885898, -0.051893045793274056, 0.02255783562729363, 0.013458551061775187, -0.07616562961394271, 0.16203609152978435, 0.28139139100634525, 0.1911175992112044, 0.23512376911298324, -0.4720644080716607, -0.18159452100827111, 0.11844308495441143, 0.12527346679029597, 0.11265861054064988, -0.06617699687121262, -0.2857949398960516, 0.13911742817655728, -0.17920405606122808, -0.07785016344190179, -0.07182069589541354, -0.00466673297258161, 0.014053056142192414, -0.27401139972925775, -0.048669799643052784, 0.09313939008510022, 0.013881285895975374, 0.027808174900476077, -0.14800733925687592, 0.05757778784152951, 0.11422815633830515, -0.079293194269006, -0.0033252224821945747, 0.14333925506421666, -0.10458176945027955, -0.1812857635781544, 0.34610520311289555, -0.03171322762751751, -0.20977828312638425, 0.10616959823067669, -0.07947803865247172, -0.12554640134314088, 0.09468159596134218, 0.17351589388743366, 0.06529450368323772, -0.14051350120039616, 0.11002445190210271, -0.04714740880115105, 0.20246482379198502, 0.04895973291495989, 0.0505432078494228, 0.16756809001667894, 0.1431340035233268, 0.07346107008391255, 0.17289952057783942, -0.026639363688262675, -0.07263466118660708, -0.26561188091952753, -0.23692658129516694, -0.18570953439720136, 0.05658269170236191, -0.07384618071379834, -0.16245064718846447, 0.41846039102557964, 0.17991884909034203, 0.17161653724519146, 0.09844756700523975, 0.2965043628765873, 0.1606368425858321, 0.10192723805754841, 0.04402192315125877, 0.18000549590047582, 0.18257764384498915, 0.058666629029987316, -0.16418850138823657, 0.06140492184308739, 0.09673010777990274] |
712.2964 | Gamma-Ray Emission from PWNe Interacting with Molecular Clouds | We consider a situation in which a pulsar is formed inside or close to a high
density region of a molecular cloud. Right after birth, the pulsar was very
active and accelerated hadrons and leptons to very high energies. Hadrons
diffuse through the supernova remnant (SNR) and some of them are trapped in the
nearby cloud interacting with the matter. We extend a recent time-dependent
model for the gamma-radiation of pulsar wind nebulae (PWNe) to describe this
more complicated astrophysical scenario. The example calculations have been
performed for two objects, IC443 and W41, which have recently been discovered
as sources of TeV gamma-rays. In this model the low energy TeV emission should
be correlated with the birth place of the pulsar and the region of dense soft
radiation rather than with its present position, provided that the injection
rate of relativistic particles into the PWNa has been much more efficient at
early times. The high energy TeV emission should be correlated with the
location of dense clouds which were able to capture high energy hadrons due to
their strong magnetic fields.
| astro-ph | we consider a situation in which a pulsar is formed inside or close to a high density region of a molecular cloud right after birth the pulsar was very active and accelerated hadrons and leptons to very high energies hadrons diffuse through the supernova remnant snr and some of them are trapped in the nearby cloud interacting with the matter we extend a recent timedependent model for the gammaradiation of pulsar wind nebulae pwne to describe this more complicated astrophysical scenario the example calculations have been performed for two objects ic443 and w41 which have recently been discovered as sources of tev gammarays in this model the low energy tev emission should be correlated with the birth place of the pulsar and the region of dense soft radiation rather than with its present position provided that the injection rate of relativistic particles into the pwna has been much more efficient at early times the high energy tev emission should be correlated with the location of dense clouds which were able to capture high energy hadrons due to their strong magnetic fields | [['we', 'consider', 'a', 'situation', 'in', 'which', 'a', 'pulsar', 'is', 'formed', 'inside', 'or', 'close', 'to', 'a', 'high', 'density', 'region', 'of', 'a', 'molecular', 'cloud', 'right', 'after', 'birth', 'the', 'pulsar', 'was', 'very', 'active', 'and', 'accelerated', 'hadrons', 'and', 'leptons', 'to', 'very', 'high', 'energies', 'hadrons', 'diffuse', 'through', 'the', 'supernova', 'remnant', 'snr', 'and', 'some', 'of', 'them', 'are', 'trapped', 'in', 'the', 'nearby', 'cloud', 'interacting', 'with', 'the', 'matter', 'we', 'extend', 'a', 'recent', 'timedependent', 'model', 'for', 'the', 'gammaradiation', 'of', 'pulsar', 'wind', 'nebulae', 'pwne', 'to', 'describe', 'this', 'more', 'complicated', 'astrophysical', 'scenario', 'the', 'example', 'calculations', 'have', 'been', 'performed', 'for', 'two', 'objects', 'ic443', 'and', 'w41', 'which', 'have', 'recently', 'been', 'discovered', 'as', 'sources', 'of', 'tev', 'gammarays', 'in', 'this', 'model', 'the', 'low', 'energy', 'tev', 'emission', 'should', 'be', 'correlated', 'with', 'the', 'birth', 'place', 'of', 'the', 'pulsar', 'and', 'the', 'region', 'of', 'dense', 'soft', 'radiation', 'rather', 'than', 'with', 'its', 'present', 'position', 'provided', 'that', 'the', 'injection', 'rate', 'of', 'relativistic', 'particles', 'into', 'the', 'pwna', 'has', 'been', 'much', 'more', 'efficient', 'at', 'early', 'times', 'the', 'high', 'energy', 'tev', 'emission', 'should', 'be', 'correlated', 'with', 'the', 'location', 'of', 'dense', 'clouds', 'which', 'were', 'able', 'to', 'capture', 'high', 'energy', 'hadrons', 'due', 'to', 'their', 'strong', 'magnetic', 'fields']] | [-0.07421148349142943, 0.18999505253612167, -0.07313712639734149, 0.1450068941307513, -0.07986780042992905, -0.11094216814575096, 0.01773861584175999, 0.41646283202701145, -0.19864269135675083, -0.33743582730078037, 0.04474741953955446, -0.2803772834336592, 0.03425827163219866, 0.18079504690443476, 0.030835316300767267, -0.022019838526547472, 0.07864281098138437, -0.0008103871873269479, -0.01778943487831081, -0.20144742103519903, 0.26548286925665, 0.1713246549764234, 0.16690970678529185, 0.059996396290241845, 0.10130645169928255, -0.0949696942142004, 0.01220404877094552, -0.027798623213958408, -0.05483178088151261, 0.09948259499441418, 0.21187350772581542, 0.09946061913570803, 0.18963963269359535, -0.4570478710138963, -0.26856542442304393, 0.11651245339049233, 0.1836015696507982, 0.05285963171433347, -0.08117627095408453, -0.31292521968587406, 0.09560345568202643, -0.24959721761859124, -0.18723521954638678, 0.023555403359286072, 0.03272724949703035, 0.05637163159747918, -0.20642544028879556, 0.08788067414295964, -0.013561651667502398, 0.011927240022042597, -0.08560111613801888, -0.09300882545584399, 0.00764169642675875, 0.046217774717499396, 0.07526747680514947, 0.05931449576487972, 0.15510420383782023, -0.1794162715966296, -0.06039756541981155, 0.4195444852631125, 0.012566936910783017, -0.07663438130532288, 0.27498756050028733, -0.22925025172686825, -0.17321499567220194, 0.22253942993055614, 0.19362575859866207, 0.11328517824100952, -0.1808834894405057, 0.0444497600480746, -0.029836035585160264, 0.14105256411841968, 0.04351556667307806, 0.06962290511441502, 0.30224200914510424, 0.15345479387712355, 0.0032752383228701848, 0.14377040254184975, -0.20670864657230495, -0.05478782321895576, -0.23554337050558793, -0.09567975716458427, -0.1504390970997823, 0.07341514562989081, -0.07313756693321112, -0.10046508241309009, 0.36295577155995284, 0.10157670500791735, 0.21655807707251773, -0.05991941922176112, 0.31121227291619613, 0.11368361822678708, 0.043982869992032644, 0.14607485172390525, 0.31881714315855386, 0.1316682122557217, 0.14572753129371752, -0.17775322759472248, 0.061820323957363144, -0.00646519066584814] |
712.2965 | General Features of Supersymmetric Signals at the ILC: Solving the LHC
Inverse Problem | We present the first detailed, large-scale study of the Minimal
Supersymmetric Standard Model (MSSM) at a $\sqrt s=500$ GeV International
Linear Collider, including full Standard Model backgrounds and detector
simulation. We investigate 242 points in the MSSM parameter space, which we
term models, that have been shown by Arkani-Hamed et al to be difficult to
study at the LHC. In fact, these points in MSSM parameter space correspond to
162 pairs of models which give indistinguishable signatures at the LHC, giving
rise to the so-called LHC Inverse Problem. We first determine whether the
production of the various SUSY particles is visible above the Standard Model
background for each of these parameter space points, and then make a detailed
comparison of their various signatures. Assuming an integrated luminosity of
500 fb$^{-1}$, we find that only 82 out of 242 models lead to visible
signatures of some kind with a significance $\geq 5$ and that only 57(63) out
of the 162 model pairs are distinguishable at $5(3)\sigma$. Our analysis
includes PYTHIA and CompHEP SUSY signal generation, full matrix element SM
backgrounds for all $2\to 2, 2\to 4$, and $2\to 6$ processes, ISR and
beamstrahlung generated via WHIZARD/GuineaPig, and employs the fast SiD
detector simulation org.lcsim.
| hep-ph hep-ex | we present the first detailed largescale study of the minimal supersymmetric standard model mssm at a sqrt s500 gev international linear collider including full standard model backgrounds and detector simulation we investigate 242 points in the mssm parameter space which we term models that have been shown by arkanihamed et al to be difficult to study at the lhc in fact these points in mssm parameter space correspond to 162 pairs of models which give indistinguishable signatures at the lhc giving rise to the socalled lhc inverse problem we first determine whether the production of the various susy particles is visible above the standard model background for each of these parameter space points and then make a detailed comparison of their various signatures assuming an integrated luminosity of 500 fb1 we find that only 82 out of 242 models lead to visible signatures of some kind with a significance geq 5 and that only 5763 out of the 162 model pairs are distinguishable at 53sigma our analysis includes pythia and comphep susy signal generation full matrix element sm backgrounds for all 2to 2 2to 4 and 2to 6 processes isr and beamstrahlung generated via whizardguineapig and employs the fast sid detector simulation orglcsim | [['we', 'present', 'the', 'first', 'detailed', 'largescale', 'study', 'of', 'the', 'minimal', 'supersymmetric', 'standard', 'model', 'mssm', 'at', 'a', 'sqrt', 's500', 'gev', 'international', 'linear', 'collider', 'including', 'full', 'standard', 'model', 'backgrounds', 'and', 'detector', 'simulation', 'we', 'investigate', '242', 'points', 'in', 'the', 'mssm', 'parameter', 'space', 'which', 'we', 'term', 'models', 'that', 'have', 'been', 'shown', 'by', 'arkanihamed', 'et', 'al', 'to', 'be', 'difficult', 'to', 'study', 'at', 'the', 'lhc', 'in', 'fact', 'these', 'points', 'in', 'mssm', 'parameter', 'space', 'correspond', 'to', '162', 'pairs', 'of', 'models', 'which', 'give', 'indistinguishable', 'signatures', 'at', 'the', 'lhc', 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712.2966 | Merging parton showers and matrix elements -- back to basics | We make a thorough comparison between different schemes of merging
fixed-order tree-level matrix element generators with parton-shower models. We
use the most basic benchmark of the O(alpha_S) correction to e+e- -> jets,
where the simple kinematics allows us to study in detail the transition between
the matrix-element and parton-shower regions. We find that the CKKW-based
schemes give a reasonably smooth transition between these regions, although
problems may occur if the parton shower used is not ordered in transverse
momentum. However, the so-called Pseudo-Shower and MLM schemes turn out to have
potentially serious problems due to different scale definitions in different
regions of phase space, and due to sensitivity to the details in the initial
conditions of the parton shower programs used.
| hep-ph | we make a thorough comparison between different schemes of merging fixedorder treelevel matrix element generators with partonshower models we use the most basic benchmark of the oalpha_s correction to ee jets where the simple kinematics allows us to study in detail the transition between the matrixelement and partonshower regions we find that the ckkwbased schemes give a reasonably smooth transition between these regions although problems may occur if the parton shower used is not ordered in transverse momentum however the socalled pseudoshower and mlm schemes turn out to have potentially serious problems due to different scale definitions in different regions of phase space and due to sensitivity to the details in the initial conditions of the parton shower programs used | [['we', 'make', 'a', 'thorough', 'comparison', 'between', 'different', 'schemes', 'of', 'merging', 'fixedorder', 'treelevel', 'matrix', 'element', 'generators', 'with', 'partonshower', 'models', 'we', 'use', 'the', 'most', 'basic', 'benchmark', 'of', 'the', 'oalpha_s', 'correction', 'to', 'ee', 'jets', 'where', 'the', 'simple', 'kinematics', 'allows', 'us', 'to', 'study', 'in', 'detail', 'the', 'transition', 'between', 'the', 'matrixelement', 'and', 'partonshower', 'regions', 'we', 'find', 'that', 'the', 'ckkwbased', 'schemes', 'give', 'a', 'reasonably', 'smooth', 'transition', 'between', 'these', 'regions', 'although', 'problems', 'may', 'occur', 'if', 'the', 'parton', 'shower', 'used', 'is', 'not', 'ordered', 'in', 'transverse', 'momentum', 'however', 'the', 'socalled', 'pseudoshower', 'and', 'mlm', 'schemes', 'turn', 'out', 'to', 'have', 'potentially', 'serious', 'problems', 'due', 'to', 'different', 'scale', 'definitions', 'in', 'different', 'regions', 'of', 'phase', 'space', 'and', 'due', 'to', 'sensitivity', 'to', 'the', 'details', 'in', 'the', 'initial', 'conditions', 'of', 'the', 'parton', 'shower', 'programs', 'used']] | [-0.06542209200403196, 0.12095108880045807, -0.12123455788143042, 0.1461084384709928, -0.06394967565636576, -0.07230067858620452, 0.010748437112512983, 0.41771081925796, -0.22124949504001762, -0.2949376363717651, 0.04242673009176249, -0.25254234968760086, -0.06076130126524022, 0.1619432533507125, -0.015554455543031632, 0.08402228405624154, 0.09932532215143665, -0.07791672234140405, -0.139776047111994, -0.21253481109516095, 0.3388449334918316, 0.07336205862052107, 0.2505036596824431, 0.10595724490565896, 0.07494751216599055, -0.008338874132447419, -0.07432296309004521, 0.005471668036218527, -0.14957620312443243, 0.05352722875422688, 0.3019472509557522, 0.08550221945743187, 0.1826646057892565, -0.4446226047920221, -0.11681160852865521, 0.11701154318180378, 0.13582305161487626, 0.11077991079897186, 0.015090142467485393, -0.24053058780382497, 0.08502283876355327, -0.2237448200851805, -0.08600537051146818, -0.08761632690498194, -0.054550338130033876, -0.018217422467965292, -0.30061574147272285, 0.0449326651558572, -0.017090718376339745, -0.009191668631856218, 0.06548059199911037, -0.13161324760560894, -0.03838882144635259, 0.12567437549074323, 0.08884900068505115, 0.020583183123824834, 0.1091394911212373, -0.1406776811454003, -0.1646063580943303, 0.411958068557936, 0.02954413313852718, -0.18729847757998158, 0.22554504107368195, -0.17161858247857445, -0.14657533965152453, 0.1604661401361227, 0.2226008761958298, 0.11306020316778351, -0.1316133482219904, 0.07270612777062786, 0.0447175336954326, 0.15999137638610297, 0.05340296885598514, 0.049324559102079564, 0.1629256789840884, 0.11471154516507572, 0.027524234823708943, 0.11261244267383116, -0.09107297185366436, -0.14359565911088454, -0.3585484560452781, -0.08716549239736998, -0.05609566738860587, -0.013145880550575261, -0.1155427173052577, -0.1880881951503274, 0.3789591947688832, 0.2035550419645684, 0.2307839058497447, 0.0024205648135078154, 0.31919698137000707, 0.07375211837717284, 0.08093194036855031, 0.07766033147493283, 0.22692088167956573, 0.14714540701983023, 0.0870497888486864, -0.22921756581379638, 0.06914192068753607, 0.08693693780292899] |
712.2967 | Magnetic interference pattern in planar SNS Josephson junctions | We study the Josephson current through a ballistic normal metal layer of
thickness $D$ on which two superconducting electrodes are deposited within a
distance $L$ of each other. In the presence of an ({\it in-layer}) magnetic
field we find that the oscillations of the critical current $I_c(\Phi)$ with
the magnetic flux $\Phi$ are significantly different from an ordinary magnetic
interference pattern. Depending on the ratio $L/D$ and temperature,
$I_c(\Phi)$-oscillations can have a period smaller than flux quantum $\Phi_0$,
nonzero minima and damping rate much smaller than $1/\Phi$. Similar anomalous
magnetic interference pattern was recently observed experimentally.
| cond-mat.supr-con cond-mat.mes-hall | we study the josephson current through a ballistic normal metal layer of thickness d on which two superconducting electrodes are deposited within a distance l of each other in the presence of an it inlayer magnetic field we find that the oscillations of the critical current i_cphi with the magnetic flux phi are significantly different from an ordinary magnetic interference pattern depending on the ratio ld and temperature i_cphioscillations can have a period smaller than flux quantum phi_0 nonzero minima and damping rate much smaller than 1phi similar anomalous magnetic interference pattern was recently observed experimentally | [['we', 'study', 'the', 'josephson', 'current', 'through', 'a', 'ballistic', 'normal', 'metal', 'layer', 'of', 'thickness', 'd', 'on', 'which', 'two', 'superconducting', 'electrodes', 'are', 'deposited', 'within', 'a', 'distance', 'l', 'of', 'each', 'other', 'in', 'the', 'presence', 'of', 'an', 'it', 'inlayer', 'magnetic', 'field', 'we', 'find', 'that', 'the', 'oscillations', 'of', 'the', 'critical', 'current', 'i_cphi', 'with', 'the', 'magnetic', 'flux', 'phi', 'are', 'significantly', 'different', 'from', 'an', 'ordinary', 'magnetic', 'interference', 'pattern', 'depending', 'on', 'the', 'ratio', 'ld', 'and', 'temperature', 'i_cphioscillations', 'can', 'have', 'a', 'period', 'smaller', 'than', 'flux', 'quantum', 'phi_0', 'nonzero', 'minima', 'and', 'damping', 'rate', 'much', 'smaller', 'than', '1phi', 'similar', 'anomalous', 'magnetic', 'interference', 'pattern', 'was', 'recently', 'observed', 'experimentally']] | [-0.22544823638898762, 0.2401248784665337, -0.020044470745089808, 0.03992446912452578, -0.0269116975857239, -0.16132317969183388, 0.052475495349713845, 0.3661749581757345, -0.23194025167705198, -0.3323527618458397, 0.0009633488897969456, -0.3042445171624422, -0.10120722272825476, 0.22304290409543012, 0.0448119794239143, -0.007878624814513482, -0.04020458936299148, 0.05417126963209165, -0.1053203879291878, -0.1765254219503779, 0.2768605652890217, 0.02850823905196433, 0.34063441444580494, 0.04125079157713212, 0.004184432626750908, -0.07754385397328357, 0.07558202138997762, 0.060871678134916646, -0.14577942513791833, -0.015576598687881702, 0.1185609821573292, -0.05396314416276781, 0.18548140623851828, -0.46948691390846903, -0.18678853260353206, 0.09642823892890623, 0.1668487625392644, 0.0871791360250331, -0.011208527162364734, -0.25782448037674555, 0.06587884982704724, -0.10776705012509698, -0.06230250894043007, 0.026122361882344673, 0.05973392096960819, 0.00626578922873657, -0.26549838924486385, 0.11503185486715091, 0.0384608658324731, 0.09079035478398988, -0.02554389912340986, -0.17640401297003816, -0.0715316300623511, 0.03969053429502405, 0.059583309751102015, 0.10764495533106751, 0.18936818218636817, -0.12384566150017474, -0.0760993277261916, 0.26609364693102083, -0.08251342653499083, -0.12413449041839493, 0.15509373619172134, -0.2265796159933272, -0.010131552869355992, 0.18409790343384405, 0.12017571230075862, 0.08197624846606662, -0.12150636689835473, 0.020011300347304264, -0.03790797669636576, 0.19279033924256891, 0.08785201074114364, 0.054867688796826096, 0.25576667646436313, 0.19143120011584344, 0.06916746365850007, 0.1209970525282092, -0.17954176258124216, -0.052227499904601196, -0.2290269053296039, -0.13668286028857293, -0.1639305274945831, 0.08623977586823074, -0.10453393952155142, -0.17691125921708972, 0.3918458882915346, 0.1507732474637267, 0.21980710283509994, -0.032037561191981166, 0.30486858351842355, 0.16083428971469402, 0.11461386512428841, 0.05489673945366552, 0.2797244698299389, 0.16492341287238033, 0.11937956770293806, -0.2916998614483562, 0.08432805948939763, -0.007717321528808067] |
712.2968 | Constraints on the variability of quark masses from nuclear binding | Based on recent work on nuclear binding, we update and extend the anthropic
constraints on the light quark masses, with results that are more tightly
constrained than previously obtained. We find that heavy nuclei would fall
apart (because the attractive nuclear central potential becomes too weak) if
the sum of the light quark masses m_u+m_d would exceed their physical values by
64% (at 95% confidence level). We summarize the anthropic constraints that
follow from requiring the existence both of heavy atoms and of hydrogen. With
the additional assumption that the quark Yukawa couplings do not vary, these
constraints provide a remarkably tight anthropic window for the Higgs vacuum
expectation value: 0.39 < v/v_physical < 1.64.
| hep-ph hep-th nucl-th | based on recent work on nuclear binding we update and extend the anthropic constraints on the light quark masses with results that are more tightly constrained than previously obtained we find that heavy nuclei would fall apart because the attractive nuclear central potential becomes too weak if the sum of the light quark masses m_um_d would exceed their physical values by 64 at 95 confidence level we summarize the anthropic constraints that follow from requiring the existence both of heavy atoms and of hydrogen with the additional assumption that the quark yukawa couplings do not vary these constraints provide a remarkably tight anthropic window for the higgs vacuum expectation value 039 vv_physical 164 | [['based', 'on', 'recent', 'work', 'on', 'nuclear', 'binding', 'we', 'update', 'and', 'extend', 'the', 'anthropic', 'constraints', 'on', 'the', 'light', 'quark', 'masses', 'with', 'results', 'that', 'are', 'more', 'tightly', 'constrained', 'than', 'previously', 'obtained', 'we', 'find', 'that', 'heavy', 'nuclei', 'would', 'fall', 'apart', 'because', 'the', 'attractive', 'nuclear', 'central', 'potential', 'becomes', 'too', 'weak', 'if', 'the', 'sum', 'of', 'the', 'light', 'quark', 'masses', 'm_um_d', 'would', 'exceed', 'their', 'physical', 'values', 'by', '64', 'at', '95', 'confidence', 'level', 'we', 'summarize', 'the', 'anthropic', 'constraints', 'that', 'follow', 'from', 'requiring', 'the', 'existence', 'both', 'of', 'heavy', 'atoms', 'and', 'of', 'hydrogen', 'with', 'the', 'additional', 'assumption', 'that', 'the', 'quark', 'yukawa', 'couplings', 'do', 'not', 'vary', 'these', 'constraints', 'provide', 'a', 'remarkably', 'tight', 'anthropic', 'window', 'for', 'the', 'higgs', 'vacuum', 'expectation', 'value', '039', 'vv_physical', '164']] | [-0.05887542883179516, 0.22601285116979852, -0.06373263277470999, 0.13313208043109626, -0.10425835106954244, -0.1670306493802595, 0.16417923085724137, 0.3524280541875799, -0.14959525377759877, -0.3474306169248718, 0.05846760067756155, -0.2659627982689666, 0.023892570044803767, 0.15872372974679042, 0.014691030631573605, 0.008873304609031558, 0.06757745153247795, 0.03393180777519384, -0.09463079124543583, -0.2619115543950881, 0.32522765076594495, 0.04569611527923761, 0.20276780789884338, 0.1386037481965364, 0.034949767224523906, -0.0002745658753805661, -0.0028291475360414813, -0.04386076000602251, -0.11661679018418779, 0.1270869138783642, 0.11719299402830075, 0.1011540886496992, 0.19322342512064747, -0.40607620718323495, -0.16141321311338938, 0.14389218287293, 0.13682892704049923, 0.1190841446563614, -0.06262485920121565, -0.26423209109010976, 0.07573638693013761, -0.16071530422362099, -0.11936197979749912, -0.0679485409553828, 0.004034105900375705, 0.0009116278129762837, -0.2896194589972895, 0.10392025452373284, -0.02128248484638919, -0.020956797783063457, -0.07198847899521102, -0.25135415117879994, -0.047281128445839773, 0.02700429975188204, 0.10823385096903491, 0.029966578707379603, 0.2254419419872907, -0.13746319766921392, -0.056865752717255545, 0.4252510909157406, -0.07823102309924122, -0.13914210977548333, 0.1864386223377161, -0.16330020330912834, -0.18142313955052355, 0.11447343479293133, 0.1467480294741108, 0.0843126903762043, -0.1616841252710271, 0.10930203927793107, -0.058731801595838205, 0.22528048251738905, 0.09001379033933128, 0.09826116763620771, 0.29374921561351847, 0.14029504554179897, 0.0323704693063129, -0.021869114054425154, -0.06837292836488425, -0.1064224563098313, -0.34879080759960096, -0.03033273869992367, -0.1221783623249004, 0.06731602609644531, -0.1094847935640116, -0.08820553118130192, 0.32238316126833005, 0.1840330574195832, 0.23782246520360267, 0.0952065554946395, 0.25804107773417073, 0.10440691416650745, 0.09467274711434064, 0.07433081354663175, 0.39524219962394064, 0.11860612526444518, 0.06569612355087884, -0.21759488178109418, 0.05119876328743495, 0.028238467529133362] |
712.2969 | New results for 5-point functions | Bhabha scattering is one of the processes at the ILC where high precision
data will be expected. The complete NNLO corrections include radiative loop
corrections, with contributions from Feynman diagrams with five external legs.
We take these diagrams as an example and discuss several features of the
evaluation of pentagon diagrams. The tensor functions are usually reduced to
simpler scalar functions. Here we study, as an alternative, the application of
Mellin-Barnes representations to 5-point functions. There is no evidence for an
improved numerical evaluation of their finite, physical parts. However, the
approach gives interesting insights into the treatment of the IR-singularities.
| hep-ph | bhabha scattering is one of the processes at the ilc where high precision data will be expected the complete nnlo corrections include radiative loop corrections with contributions from feynman diagrams with five external legs we take these diagrams as an example and discuss several features of the evaluation of pentagon diagrams the tensor functions are usually reduced to simpler scalar functions here we study as an alternative the application of mellinbarnes representations to 5point functions there is no evidence for an improved numerical evaluation of their finite physical parts however the approach gives interesting insights into the treatment of the irsingularities | [['bhabha', 'scattering', 'is', 'one', 'of', 'the', 'processes', 'at', 'the', 'ilc', 'where', 'high', 'precision', 'data', 'will', 'be', 'expected', 'the', 'complete', 'nnlo', 'corrections', 'include', 'radiative', 'loop', 'corrections', 'with', 'contributions', 'from', 'feynman', 'diagrams', 'with', 'five', 'external', 'legs', 'we', 'take', 'these', 'diagrams', 'as', 'an', 'example', 'and', 'discuss', 'several', 'features', 'of', 'the', 'evaluation', 'of', 'pentagon', 'diagrams', 'the', 'tensor', 'functions', 'are', 'usually', 'reduced', 'to', 'simpler', 'scalar', 'functions', 'here', 'we', 'study', 'as', 'an', 'alternative', 'the', 'application', 'of', 'mellinbarnes', 'representations', 'to', '5point', 'functions', 'there', 'is', 'no', 'evidence', 'for', 'an', 'improved', 'numerical', 'evaluation', 'of', 'their', 'finite', 'physical', 'parts', 'however', 'the', 'approach', 'gives', 'interesting', 'insights', 'into', 'the', 'treatment', 'of', 'the', 'irsingularities']] | [-0.08646577420644462, 0.11432886282374966, -0.09874950719531625, 0.13257147033000366, -0.0867408999754116, -0.07215344167314469, 0.024067313112318516, 0.3743348240759224, -0.21011019563302397, -0.27266805555671453, 0.09196588604245334, -0.32721293965121734, -0.15145551482681185, 0.2167362296115607, 0.0324387035286054, 0.017886355323716997, 0.06604366638115607, 0.009527218942530453, -0.11483311577700078, -0.24149341573938726, 0.33180255092447625, 0.038227370146196336, 0.2056085584545508, 0.11484667064622045, 0.08096959556569346, 0.014406742621213197, -0.10070922563318163, -0.022550579998642205, -0.11270403008908034, 0.09779757421347313, 0.24586590486578644, 0.10261321069207043, 0.1982901960448362, -0.4305485814064741, -0.13004810001235456, 0.06553995294962078, 0.17235276167746633, 0.12978532432112844, 0.003991032456979155, -0.24233067068271338, 0.026031047133728863, -0.2038525910489261, -0.1458044061809778, -0.1483142311917618, -0.0037130977865308524, -0.051756195233901965, -0.28501354706473647, -0.006692650392651558, 0.01401334852911532, 0.04984306881204247, -0.04042183165904135, -0.19395189865957946, -0.015930148675106465, 0.17770989284850658, 0.06342136853840202, 0.026950255022384226, 0.10518277361057699, -0.20560718257445842, -0.18915906869457103, 0.38724064313806594, -0.03321291458327323, -0.22367683123797177, 0.1578574482118711, -0.13980163908097892, -0.14290401064790786, 0.1725623753434047, 0.16124265134334564, 0.09693349860172021, -0.1800877240858972, 0.09257731446938124, 0.03123972836881876, 0.10669588723569177, 0.04860929601592943, 0.05011167466524057, 0.16798119453480467, 0.12483819964341819, -0.017675566368270664, 0.19376295517082326, -0.02775427666027099, -0.10439391534542665, -0.3976318544521928, -0.14551144883036612, -0.07528405328979716, 0.02969900534953922, -0.1565429180114006, -0.20626634939573704, 0.35925183408893646, 0.14531660736072807, 0.18476216364972062, 0.03936541326576844, 0.351415688386187, 0.17167948257178067, 0.12603351588128134, 0.006159477806650102, 0.22765020210761577, 0.11994255304336549, 0.048102709366939965, -0.2019733109907247, 0.003999622949631885, 0.07588083047885448] |
712.297 | Rigid objects in higher cluster categories | We study maximal $m$-rigid objects in the $m$-cluster category $\mathcal
C_H^m$ associated with a finite dimensional hereditary algebra $H$ with $n$
nonisomorphic simple modules. We show that all maximal $m$-rigid objects in
these categories have exactly $n$ nonisomorphic indecomposable summands, and
that any almost complete $m$-rigid object in $\mathcal C_H^m$ has exactly $m+1$
nonisomorphic complements. We also show that the maximal $m$-rigid objects and
the $m$-cluster tilting objects in these categories coincide, and that the
class of finite dimensional algebras associated with maximal $m$-rigid objects
is closed under certain factor algebras.
| math.RT | we study maximal mrigid objects in the mcluster category mathcal c_hm associated with a finite dimensional hereditary algebra h with n nonisomorphic simple modules we show that all maximal mrigid objects in these categories have exactly n nonisomorphic indecomposable summands and that any almost complete mrigid object in mathcal c_hm has exactly m1 nonisomorphic complements we also show that the maximal mrigid objects and the mcluster tilting objects in these categories coincide and that the class of finite dimensional algebras associated with maximal mrigid objects is closed under certain factor algebras | [['we', 'study', 'maximal', 'mrigid', 'objects', 'in', 'the', 'mcluster', 'category', 'mathcal', 'c_hm', 'associated', 'with', 'a', 'finite', 'dimensional', 'hereditary', 'algebra', 'h', 'with', 'n', 'nonisomorphic', 'simple', 'modules', 'we', 'show', 'that', 'all', 'maximal', 'mrigid', 'objects', 'in', 'these', 'categories', 'have', 'exactly', 'n', 'nonisomorphic', 'indecomposable', 'summands', 'and', 'that', 'any', 'almost', 'complete', 'mrigid', 'object', 'in', 'mathcal', 'c_hm', 'has', 'exactly', 'm1', 'nonisomorphic', 'complements', 'we', 'also', 'show', 'that', 'the', 'maximal', 'mrigid', 'objects', 'and', 'the', 'mcluster', 'tilting', 'objects', 'in', 'these', 'categories', 'coincide', 'and', 'that', 'the', 'class', 'of', 'finite', 'dimensional', 'algebras', 'associated', 'with', 'maximal', 'mrigid', 'objects', 'is', 'closed', 'under', 'certain', 'factor', 'algebras']] | [-0.15767517329057615, 0.1286732768496038, 0.02057711849135629, 0.04912325875634809, -0.07937869286750641, -0.16788187999738735, -0.0751998590389162, 0.4431069250522035, -0.32174587134648575, -0.18777925367310142, 0.06805779838024147, -0.25644272069833923, -0.1230811855390804, 0.17363920005749953, -0.20138872420059495, -0.08550613285617882, 0.14389142108390504, 0.16720930067299122, -0.054001944547707445, -0.3129445123656266, 0.438239962699708, -0.09120529093204087, 0.205041085757064, -0.04759177856809156, 0.1598706961389673, -0.02076530478779603, 0.010152338376122245, 0.10346604367780886, -0.19736262596653137, 0.11578837892019682, 0.3625220361824953, 0.07097775823949429, 0.12534296224966351, -0.2966454195203992, -0.061470349277422, 0.3031408497331183, 0.16331097579072623, 0.016043158792210428, 0.007058431854827351, -0.24199246732371577, 0.15669917890781096, -0.2726291904665446, -0.12117760127221935, -0.0540814729030715, 0.17049943150303673, 0.0028507094804113837, -0.22273241579951195, -0.012196905895599342, 0.1439089984371421, 0.14947070624794434, -0.14105927321557585, -0.09644268059140343, -0.12797776300962385, 0.09305919241683369, -0.08888021345103808, -0.0565879555089462, 0.076650808790301, -0.11163945420951912, -0.21269173045862425, 0.31697221374494977, 0.008545285477983148, -0.20093151834908496, 0.21348605861657122, -0.23055426679091173, -0.19072637750945065, 0.16800597055783767, -0.007788380178926366, 0.19242935721877585, -0.041500246413889226, 0.23077811711805277, -0.22204466524083963, 0.026594373931208354, 0.13484157758942816, 0.07115435420294826, 0.14060945404965555, 0.03363390697501181, 0.07259326907963062, 0.1736525754297801, 0.04727200887380482, 0.04622979499295019, -0.3712481233511078, -0.14089586063591616, -0.05174727856150169, 0.1439280209309432, -0.15612478681340985, -0.18705813879712244, 0.33237433627383844, 0.09586741727530915, 0.20534810505472542, 0.16103961271641964, 0.15574025764559093, 0.00043126867477143746, 0.1562770377698072, 0.10360131807771794, 0.10508726589549124, 0.2441037924374255, -0.14877266611569048, -0.10862979074688943, -0.06029905297720198, 0.2293145391629653] |
712.2971 | CaII Infrared triplet line models in Classical T Tauri stars | We study the formation of the calcium II infrared triplet lines 8498\AA,
8542\AA and 8662\AA, in the accreting magnetospheric flows of Classical T Tauri
stars (CTTS), and present a grid of models for a large range of magnetospheric
conditions. We apply our models to the interpretation of multi epoch
observations of the CTTS DI Cep. We find that these lines form in the
magnetospheric infall and that the variability of the CaII triplet lines in DI
Cep can be explained in the context of changes in the mass accretion
rate/temperature of the accretion column gas.
| astro-ph | we study the formation of the calcium ii infrared triplet lines 8498aa 8542aa and 8662aa in the accreting magnetospheric flows of classical t tauri stars ctts and present a grid of models for a large range of magnetospheric conditions we apply our models to the interpretation of multi epoch observations of the ctts di cep we find that these lines form in the magnetospheric infall and that the variability of the caii triplet lines in di cep can be explained in the context of changes in the mass accretion ratetemperature of the accretion column gas | [['we', 'study', 'the', 'formation', 'of', 'the', 'calcium', 'ii', 'infrared', 'triplet', 'lines', '8498aa', '8542aa', 'and', '8662aa', 'in', 'the', 'accreting', 'magnetospheric', 'flows', 'of', 'classical', 't', 'tauri', 'stars', 'ctts', 'and', 'present', 'a', 'grid', 'of', 'models', 'for', 'a', 'large', 'range', 'of', 'magnetospheric', 'conditions', 'we', 'apply', 'our', 'models', 'to', 'the', 'interpretation', 'of', 'multi', 'epoch', 'observations', 'of', 'the', 'ctts', 'di', 'cep', 'we', 'find', 'that', 'these', 'lines', 'form', 'in', 'the', 'magnetospheric', 'infall', 'and', 'that', 'the', 'variability', 'of', 'the', 'caii', 'triplet', 'lines', 'in', 'di', 'cep', 'can', 'be', 'explained', 'in', 'the', 'context', 'of', 'changes', 'in', 'the', 'mass', 'accretion', 'ratetemperature', 'of', 'the', 'accretion', 'column', 'gas']] | [-0.08181400330415825, 0.11642564846324208, -0.026964254657049543, 0.07998915034872682, -0.05334089412708241, -0.09297108573272177, 0.04144771901242759, 0.39352265308084694, -0.1892070892955298, -0.28077139002372226, 0.07574017930006527, -0.22318571995255415, -0.022355570336398872, 0.15776537951023784, -0.06043221566664136, -0.034358593369530434, 0.055506321786315704, -0.07295878986706553, -0.04967592577652439, -0.18746946280842405, 0.3403845856209164, 0.022376030835363526, 0.11030018606486366, 0.004257405318481767, 0.010415612998337525, -0.13609133049865943, -0.06427267575940199, -0.03942946554667762, -0.16590025276530904, 0.06501114412924874, 0.22146024803845174, 0.1624530557689824, 0.19679183378162712, -0.38146367774385476, -0.26458977917006804, 0.05287179755269671, 0.17298534705870502, 0.011155995398597874, -0.023333574938790305, -0.2309516192636574, 0.048371905896245786, -0.17864801419352222, -0.12212516995065886, 0.050334643916753324, 0.05881922581212838, 0.06131664545366378, -0.3115846900795789, 0.07617994699166561, 0.08608604881548039, 0.13146411835054017, -0.13530463680280777, -0.04343120152454661, -0.07543438282521928, 0.06047467784146252, 0.053887318765349766, 0.021595219906885177, 0.191667844452794, -0.20832274587946417, -0.08203282043256838, 0.3764272196744771, -0.18683899051266845, -0.005535798005597747, 0.25276310810738284, -0.256580681049103, -0.20413095980336, 0.146875406180144, 0.1340591816596039, 0.17287343855866272, -0.10627421891094065, 0.025942338188305377, -0.0709719671462865, 0.15378680993276445, 0.023965644376838336, 0.05110719810371571, 0.3616253271719198, 0.09401859181082767, -0.042961126471788666, 0.10505684814985294, -0.2830847516382599, -0.09335306934688402, -0.2749541552279286, -0.17020556783182142, -0.07579337568629695, 0.042247497129922165, -0.10914262164458152, -0.13128125780950423, 0.36718087050932174, 0.17255544212188714, 0.23473692280442818, -0.0329626626132623, 0.26379247277003265, 0.13395703545108478, 0.08615899857376581, 0.15483626473249626, 0.2805976410264797, 0.1747454658312642, 0.18956718510826645, -0.3252528500844441, 0.07405294870714778, 0.054651429041531745] |
712.2972 | An asymptotic theorem for minimal surfaces and existence results for
minimal graphs in $H^2 \times R$ | In this paper we prove a general and sharp Asymptotic Theorem for minimal
surfaces in $H^2\times R$. As a consequence, we prove that there is no properly
immersed minimal surface whose asymptotic boundary $C$ is a Jordan curve
homologous to zero in the asymptotic boundary of $ H^2\times R,$ say
$\partial_\infty H^2\times R$, such that $C$ is contained in a slab between two
horizontal circles of $\partial_\infty H^2\times R$ with width equal to $\pi.$
We construct minimal vertical graphs in $H^2\times R$ over certain unbounded
admissible domains taking certain prescribed finite boundary data and certain
prescribed asymptotic boundary data. Our admissible unbounded domains $\Om$ in
$H^2\times \{0\}$ are non necessarily convex and non necessarily bounded by
convex arcs; each component of its boundary is properly embedded with zero, one
or two points on its asymptotic boundary, satisfying a further geometric
condition.
| math.DG | in this paper we prove a general and sharp asymptotic theorem for minimal surfaces in h2times r as a consequence we prove that there is no properly immersed minimal surface whose asymptotic boundary c is a jordan curve homologous to zero in the asymptotic boundary of h2times r say partial_infty h2times r such that c is contained in a slab between two horizontal circles of partial_infty h2times r with width equal to pi we construct minimal vertical graphs in h2times r over certain unbounded admissible domains taking certain prescribed finite boundary data and certain prescribed asymptotic boundary data our admissible unbounded domains om in h2times 0 are non necessarily convex and non necessarily bounded by convex arcs each component of its boundary is properly embedded with zero one or two points on its asymptotic boundary satisfying a further geometric condition | [['in', 'this', 'paper', 'we', 'prove', 'a', 'general', 'and', 'sharp', 'asymptotic', 'theorem', 'for', 'minimal', 'surfaces', 'in', 'h2times', 'r', 'as', 'a', 'consequence', 'we', 'prove', 'that', 'there', 'is', 'no', 'properly', 'immersed', 'minimal', 'surface', 'whose', 'asymptotic', 'boundary', 'c', 'is', 'a', 'jordan', 'curve', 'homologous', 'to', 'zero', 'in', 'the', 'asymptotic', 'boundary', 'of', 'h2times', 'r', 'say', 'partial_infty', 'h2times', 'r', 'such', 'that', 'c', 'is', 'contained', 'in', 'a', 'slab', 'between', 'two', 'horizontal', 'circles', 'of', 'partial_infty', 'h2times', 'r', 'with', 'width', 'equal', 'to', 'pi', 'we', 'construct', 'minimal', 'vertical', 'graphs', 'in', 'h2times', 'r', 'over', 'certain', 'unbounded', 'admissible', 'domains', 'taking', 'certain', 'prescribed', 'finite', 'boundary', 'data', 'and', 'certain', 'prescribed', 'asymptotic', 'boundary', 'data', 'our', 'admissible', 'unbounded', 'domains', 'om', 'in', 'h2times', '0', 'are', 'non', 'necessarily', 'convex', 'and', 'non', 'necessarily', 'bounded', 'by', 'convex', 'arcs', 'each', 'component', 'of', 'its', 'boundary', 'is', 'properly', 'embedded', 'with', 'zero', 'one', 'or', 'two', 'points', 'on', 'its', 'asymptotic', 'boundary', 'satisfying', 'a', 'further', 'geometric', 'condition']] | [-0.23290086479890826, 0.10973799037081855, -0.08263479674101941, 0.021727223400791574, -0.08481919024405735, -0.20506521678596204, 0.008257626261495586, 0.37135168760682324, -0.2734367846511304, -0.1599655307103863, 0.1661126719305425, -0.2820560041282858, -0.08370144828388999, 0.13501543832743274, -0.15059818666361804, 0.06047937566597414, 0.07222671677424972, 0.10444880512077362, -0.07558182057858046, -0.22993941335007548, 0.3437166675625901, -0.14704187604282717, 0.18612751842675998, 0.08596405034103165, 0.07928270024214205, -0.011534726490000528, 0.02544856546114066, 0.06830360993875989, -0.2602983268681523, 0.10074232515014175, 0.25622290171283696, 0.06853702276545975, 0.2514665490498633, -0.4039744254933404, -0.17348573489247687, 0.21575262772052417, 0.1565908406827865, -0.03520869398156979, 0.033783266617683695, -0.21690627300579632, 0.17107597746487174, -0.08053885564607169, -0.2118576805007511, 0.029354551720565985, 0.056561983679421245, -0.008173837486122335, -0.2768854093471808, 0.02483261140462543, 0.15479095852268593, 0.14039170021257763, -0.07097515455347353, -0.08303170437076395, -0.11493375258952646, 0.05260867871443874, 0.03324352349154651, 0.08566514548063943, 0.04199040425675256, -0.023907744503646557, -0.0027356358211753622, 0.30480590016315023, -0.08979471995096122, -0.30544996232326543, 0.16337859380458084, -0.19481130121941012, -0.07156527081970125, 0.10112437271912184, 0.09476271944918803, 0.15772509827677691, -0.08641101914191884, 0.2387446821654781, -0.08877449138256321, 0.07922533816391868, 0.17077393928609255, -0.03295444425602909, 0.1478303768605526, 0.048171638045459986, 0.17730447664590818, 0.15238028835904385, -0.00506049690468769, -0.04219984940386244, -0.45244991074183155, -0.16864306053944997, -0.17216625414190015, 0.09408112760034523, -0.1822087607809018, -0.29296185704214234, 0.32669003550628467, -0.0071559204919529815, 0.22756260987371207, 0.10026832473564094, 0.2250168607570231, 0.0682018453654434, 0.0191885494178028, 0.15028028517429318, 0.11681779503622758, 0.13887712619699805, -0.013361627941984417, -0.14802620239289743, 0.004442998404348535, 0.11215212848733895] |
712.2973 | Towards the undestanding of radial velocity pulsation in roAp stars | High-resolution spectroscopic time series of rapidly oscillating Ap stars
show evidence for a co-existence of standing and running waves in their
atmospheric layers. With the purpose of understanding these observations we
have carried out a theoretical analysis of the pulsations in the outermost
layers of these stars, starting from the simplest possible model that still
retains all important physical ingredients. In our analysis we considered an
isothermal atmosphere in a plane-parallel approximation. Moreover we assumed
that in the region considered the magnetic pressure is much larger than the gas
pressure and, consequently, that the magnetoacoustic wave has decoupled into
its acoustic and magnetic components. Using the analytical solutions for the
velocity components appropriate to this model we estimate the velocity
component parallel to the line of sight averaged over the visible stellar disk.
Fitting the latter to a function of the form Acos($\sigma$t+phase), with
$\sigma$ the dimensionless oscillation frequency and t the dimensionless time,
we derive the amplitude A and the phase for our model as function of height in
the atmosphere.
| astro-ph | highresolution spectroscopic time series of rapidly oscillating ap stars show evidence for a coexistence of standing and running waves in their atmospheric layers with the purpose of understanding these observations we have carried out a theoretical analysis of the pulsations in the outermost layers of these stars starting from the simplest possible model that still retains all important physical ingredients in our analysis we considered an isothermal atmosphere in a planeparallel approximation moreover we assumed that in the region considered the magnetic pressure is much larger than the gas pressure and consequently that the magnetoacoustic wave has decoupled into its acoustic and magnetic components using the analytical solutions for the velocity components appropriate to this model we estimate the velocity component parallel to the line of sight averaged over the visible stellar disk fitting the latter to a function of the form acossigmatphase with sigma the dimensionless oscillation frequency and t the dimensionless time we derive the amplitude a and the phase for our model as function of height in the atmosphere | [['highresolution', 'spectroscopic', 'time', 'series', 'of', 'rapidly', 'oscillating', 'ap', 'stars', 'show', 'evidence', 'for', 'a', 'coexistence', 'of', 'standing', 'and', 'running', 'waves', 'in', 'their', 'atmospheric', 'layers', 'with', 'the', 'purpose', 'of', 'understanding', 'these', 'observations', 'we', 'have', 'carried', 'out', 'a', 'theoretical', 'analysis', 'of', 'the', 'pulsations', 'in', 'the', 'outermost', 'layers', 'of', 'these', 'stars', 'starting', 'from', 'the', 'simplest', 'possible', 'model', 'that', 'still', 'retains', 'all', 'important', 'physical', 'ingredients', 'in', 'our', 'analysis', 'we', 'considered', 'an', 'isothermal', 'atmosphere', 'in', 'a', 'planeparallel', 'approximation', 'moreover', 'we', 'assumed', 'that', 'in', 'the', 'region', 'considered', 'the', 'magnetic', 'pressure', 'is', 'much', 'larger', 'than', 'the', 'gas', 'pressure', 'and', 'consequently', 'that', 'the', 'magnetoacoustic', 'wave', 'has', 'decoupled', 'into', 'its', 'acoustic', 'and', 'magnetic', 'components', 'using', 'the', 'analytical', 'solutions', 'for', 'the', 'velocity', 'components', 'appropriate', 'to', 'this', 'model', 'we', 'estimate', 'the', 'velocity', 'component', 'parallel', 'to', 'the', 'line', 'of', 'sight', 'averaged', 'over', 'the', 'visible', 'stellar', 'disk', 'fitting', 'the', 'latter', 'to', 'a', 'function', 'of', 'the', 'form', 'acossigmatphase', 'with', 'sigma', 'the', 'dimensionless', 'oscillation', 'frequency', 'and', 't', 'the', 'dimensionless', 'time', 'we', 'derive', 'the', 'amplitude', 'a', 'and', 'the', 'phase', 'for', 'our', 'model', 'as', 'function', 'of', 'height', 'in', 'the', 'atmosphere']] | [-0.13601371872256515, 0.12419919723214932, -0.06938298205077126, 0.04669606910027259, -0.06468655839725806, -0.05667298613388461, 0.06251548131116344, 0.35927537190373876, -0.23331453860328907, -0.2938696700992466, 0.08022657564394611, -0.24992576193565513, -0.08999966511166552, 0.20854230026022819, 0.056380770069632775, 0.03533786137510712, 0.04464686473958161, 0.011879932004631612, -0.042696193728271915, -0.18528892153231372, 0.2976925203723735, 0.06113223671608153, 0.20943323512594297, -0.0055274315864632, 0.0747974096974923, -0.058986852778808066, -0.041305642498776926, 0.0026645593853035603, -0.1600751073844033, 0.04714231624585244, 0.2057009911687489, 0.08422688666012204, 0.21490902278289112, -0.44132012129374587, -0.26926969286402935, 0.047997544153337506, 0.19001806816167868, 0.07793478096756344, -0.025625297811960702, -0.22923951065004394, 0.05074104075374528, -0.13076791051797002, -0.17234948688671428, -0.01774045978863424, 0.04086646625271056, 0.016514727363787722, -0.26322527984647376, 0.0971668164357434, 0.07556700119367468, 0.07525248331840188, -0.14277080250209556, -0.11933319453607526, -0.05118427532643341, 0.10737342291854714, 0.0834015835619842, 0.03833585814436712, 0.10916453156870795, -0.12917558705959775, 0.010587687870999526, 0.3718207002187159, -0.13643782548186006, -0.14217904578807236, 0.18424998513390228, -0.1818637295152273, -0.10215265193561975, 0.12670564207340979, 0.16215048065376386, 0.11658468153545556, -0.1196924270864587, 0.02833383158632222, -0.043658720432799066, 0.19441443717662701, 0.05549679768179157, -0.003980311720321576, 0.26566685109851307, 0.14960482851084736, 0.026341280462107982, 0.11586379798058398, -0.17690483407166444, -0.07627163297253013, -0.28684487264625164, -0.14763652285757034, -0.1254205502473003, 0.023434707189876756, -0.11614036140920886, -0.18379485660521258, 0.4362331354780918, 0.1632440994161437, 0.19460572286410943, 0.01957057681403052, 0.34933347862802056, 0.1404203911378642, 0.07808341175911414, 0.11190050618712143, 0.29609337958305726, 0.17812499391699307, 0.1189082261945573, -0.23427468906456267, 0.05885925894733845, 0.02246094835181421] |
712.2974 | On the rate of convergence and Berry-Esseen type theorems for a
multivariate free central limit theorem | We address the question of a Berry Esseen type theorem for the speed of
convergence in a multivariate free central limit theorem. For this, we estimate
the difference between the operator-valued Cauchy transforms of the normalized
partial sums in an operator-valued free central limit theorem and the Cauchy
transform of the limiting operator-valued semicircular element.
| math.OA | we address the question of a berry esseen type theorem for the speed of convergence in a multivariate free central limit theorem for this we estimate the difference between the operatorvalued cauchy transforms of the normalized partial sums in an operatorvalued free central limit theorem and the cauchy transform of the limiting operatorvalued semicircular element | [['we', 'address', 'the', 'question', 'of', 'a', 'berry', 'esseen', 'type', 'theorem', 'for', 'the', 'speed', 'of', 'convergence', 'in', 'a', 'multivariate', 'free', 'central', 'limit', 'theorem', 'for', 'this', 'we', 'estimate', 'the', 'difference', 'between', 'the', 'operatorvalued', 'cauchy', 'transforms', 'of', 'the', 'normalized', 'partial', 'sums', 'in', 'an', 'operatorvalued', 'free', 'central', 'limit', 'theorem', 'and', 'the', 'cauchy', 'transform', 'of', 'the', 'limiting', 'operatorvalued', 'semicircular', 'element']] | [-0.10224467722529715, 0.06752160209553866, -0.1435151028531519, 0.15785797897683965, -0.015605227073485202, -0.044659893807362426, 0.06275788789445703, 0.28975409560582854, -0.3427772995084524, -0.14085471714762124, 0.13762422975745392, -0.30322189127857035, -0.10201103820740669, 0.20153235969218342, -0.16085212320428002, 0.09949019974605604, 0.03628779859705405, 0.04761020138182424, -0.16819012147289786, -0.16414233029566028, 0.35249086225574666, -0.03664465454322371, 0.26050317788665944, 0.08160521946847439, 0.12313935710963878, 0.0989900638180023, -0.10210154283453118, -0.09338179562579502, -0.1436866907995533, 0.1508692462970926, 0.25599701912565664, 0.053604207662018864, 0.3260003009980375, -0.3716888355599208, -0.11020382537760517, 0.18248508708890188, 0.12005786968564446, -0.02272349309853532, -0.043009415319697424, -0.29389747760512613, 0.044396988708864556, -0.1475239027630199, -0.21518315076828004, -0.024460986574095758, 0.032605647973038936, 0.07670628137209198, -0.2797881791198796, 0.16279195250773973, 0.19362761418927799, 0.020275886259465054, -0.09414303204552694, -0.06782861981879582, 0.06567879655737091, 0.0985376444899223, 0.06067052900113843, -0.008992840036411176, 0.07887678358026526, -0.05853061834773557, -0.06265400644730437, 0.2671848440034823, -0.09692326141732999, -0.26560803909193387, 0.043196703468195416, -0.2088190459222956, -0.15303773588754915, 0.09411934487182985, 0.14514618029140613, 0.13824323276904496, -0.12022143607451156, 0.17442023787880317, -0.11735306165435097, 0.10210343314842744, 0.17975848947059025, 0.016137797927314585, 0.16425197126174515, 0.06957448494027961, 0.12201452818275853, 0.16655573968521573, -0.08985075964169069, -0.1145756495269862, -0.387829894640229, -0.2696271717209708, -0.22010481106964025, 0.12130209072069688, -0.17573665255834137, -0.2635150577195666, 0.34826959601857443, 0.1264382349750535, 0.13003318079493262, 0.109999483180317, 0.21608614572747187, 0.25059308623048393, -0.03107729054648768, 0.04653462229127234, 0.1294990247623487, 0.32086960886689747, 0.10691095431419936, -0.15571845092556694, -0.03951828417960893, 0.22601511380211872] |
712.2975 | X-ray properties of protostars in the Orion Nebula | The origin and evolution of the X-rays in very young stellar objects (YSOs)
are not yet well understood since it is very hard to observe YSOs in the
protostellar phase. We study the X-ray properties of Class 0-I objects in the
Orion Nebula Cluster (ONC) and compare them with those of the more evolved
Class II and III members. Using Chandra Orion Ultradeep Project (COUP) data, we
study the X-ray properties of stars in different evolutionary classes:
luminosities, NH, temperatures and time variability are compared in order to
understand if the interaction between the circumstellar material and the
central object can influence the X-ray emission. We have assembled the deepest
and most complete photometric catalog of objects in the ONC region from the UV
to 8 microns using data from HST, WFI@2.2m ESO and ISPI@4m CTIO telescopes, and
Spitzer IRAC. We select high probability candidate Class 0-I protostars,
distinguishing between those having a spectral energy distribution which rises
from K up to 8 microns (Class 0-Ia) from those where the SED rises from K up to
4.5 microns and decreasing afterwards (Class 0-Ib). We select a sample of bona
fide Class II stars and a set of Class III stars with IR emission consistent
with normal photospheres. Our principal result is that Class 0-Ia objects are
significantly less luminous in X-rays, both in the total and hard bands, than
the more evolved Class II stars with mass larger than 0.5 Msun; these latter
show X-ray luminosities similar to those of Class 0-Ib stars. This result
supports the hypothesis that the onset of X-ray emission occurs at a very early
stage of star formation. Temporal variability and spectral properties of Class
0-I stars are similar to those of the more evolved Class II and III objects,
except for a larger absorption likely due to gas in the circumstellar material.
| astro-ph | the origin and evolution of the xrays in very young stellar objects ysos are not yet well understood since it is very hard to observe ysos in the protostellar phase we study the xray properties of class 0i objects in the orion nebula cluster onc and compare them with those of the more evolved class ii and iii members using chandra orion ultradeep project coup data we study the xray properties of stars in different evolutionary classes luminosities nh temperatures and time variability are compared in order to understand if the interaction between the circumstellar material and the central object can influence the xray emission we have assembled the deepest and most complete photometric catalog of objects in the onc region from the uv to 8 microns using data from hst wfi22m eso and ispi4m ctio telescopes and spitzer irac we select high probability candidate class 0i protostars distinguishing between those having a spectral energy distribution which rises from k up to 8 microns class 0ia from those where the sed rises from k up to 45 microns and decreasing afterwards class 0ib we select a sample of bona fide class ii stars and a set of class iii stars with ir emission consistent with normal photospheres our principal result is that class 0ia objects are significantly less luminous in xrays both in the total and hard bands than the more evolved class ii stars with mass larger than 05 msun these latter show xray luminosities similar to those of class 0ib stars this result supports the hypothesis that the onset of xray emission occurs at a very early stage of star formation temporal variability and spectral properties of class 0i stars are similar to those of the more evolved class ii and iii objects except for a larger absorption likely due to gas in the circumstellar material | [['the', 'origin', 'and', 'evolution', 'of', 'the', 'xrays', 'in', 'very', 'young', 'stellar', 'objects', 'ysos', 'are', 'not', 'yet', 'well', 'understood', 'since', 'it', 'is', 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712.2976 | Enriques and Octonionic Magic Supergravity Models | We reconsider the Enriques Calabi Yau (FHSV) model and its string derivation
and argue that the Octonionic magic supergravity theory admits a string
interpretation closely related to the Enriques model. The uplift to D=6 of the
Octonionic magic model has 16 abelian vectors related to the rank of Type I and
Heterotic strings.
| hep-th | we reconsider the enriques calabi yau fhsv model and its string derivation and argue that the octonionic magic supergravity theory admits a string interpretation closely related to the enriques model the uplift to d6 of the octonionic magic model has 16 abelian vectors related to the rank of type i and heterotic strings | [['we', 'reconsider', 'the', 'enriques', 'calabi', 'yau', 'fhsv', 'model', 'and', 'its', 'string', 'derivation', 'and', 'argue', 'that', 'the', 'octonionic', 'magic', 'supergravity', 'theory', 'admits', 'a', 'string', 'interpretation', 'closely', 'related', 'to', 'the', 'enriques', 'model', 'the', 'uplift', 'to', 'd6', 'of', 'the', 'octonionic', 'magic', 'model', 'has', '16', 'abelian', 'vectors', 'related', 'to', 'the', 'rank', 'of', 'type', 'i', 'and', 'heterotic', 'strings']] | [-0.12771165373576981, 0.09181685685970874, -0.052257647933075996, 0.19722686909613604, -0.14472525864663832, -0.2578169362683218, 0.03532993362750858, 0.2500097223311522, -0.20745052274246262, -0.25630092221523093, 0.11986511187487335, -0.3068326342640058, -0.19838544265982114, 0.08850685371314439, -0.16752063268619888, -0.04604048178342329, -0.0264370424216086, 0.09620350604560578, -0.11943818337090735, -0.34381870862166836, 0.35254023550078273, 0.04161440753290113, 0.27689176511880503, 0.06019774635590367, 0.12582071190524213, -0.014449117793086564, -0.03421191985385036, -0.06498801147670678, -0.14254748496682193, 0.20394932603867688, 0.24769219706924456, 0.13382300728369714, -0.0079783198757554, -0.4144865102573948, -0.21314805841626916, 0.14284269458983304, 0.13995312259725803, 0.12589701567337197, 0.06507644385872584, -0.23754787336121191, 0.017829148850034712, -0.18325718000250044, -0.23395424833486103, -0.05878859306389097, 0.06331032697541886, -0.1010567780302943, -0.1311184628603031, 0.008306365277846608, 0.06273018259484812, 0.017297371729927243, -0.13514112909807702, -0.12566745196873286, -0.07362300066171952, -0.02908393788977333, 0.16063418788044662, 0.12966645595108, 0.0593816545651347, -0.1354660069534801, -0.21026992818938112, 0.3150994241026775, -0.02547910610073299, -0.19973268503112332, 0.08347074016225788, -0.08071107806567594, -0.1780372618890877, 0.09734488921767136, 0.028172682812613137, 0.16201503531851383, -0.020168534339458314, 0.24864767748041008, -0.12066394358627358, 0.11945552859490491, 0.10936108748164941, -0.02769555264802755, 0.20458741443020836, 0.11041510031330136, 0.0022046345907685188, 0.12426759046941714, -0.02965776810317107, -0.11703808096079331, -0.43295089028916267, -0.1337351051141631, -0.06484229901348645, 0.21051480157195396, -0.14473343084325777, -0.20119757774584698, 0.3984646108352913, 0.04759828663729834, 0.15077694429892977, 0.04391588799585149, 0.11641896013521923, 0.021436842966754483, 0.02542391260382983, 0.05004912776485929, 0.20965165766131766, 0.2558474187862198, 0.0412367046019941, -0.24190357827607822, -0.1572262598728796, 0.32270662634159036] |
712.2977 | Outflows and winds in AGNs: a case for Simbol-X | Chandra and XMM-Newton X-ray observations are accumulating evidence for
massive, high velocity outflows in Seyfert galaxies and quasars, most likely
originating very close to the central supermassive black hole. These results
are offering new potential to probe the launching regions of relativistic
jets/outflows, and to quantify their feedback impact on the host galaxy and/or
cluster of galaxies. The most important signature of these phenomena is the
detection of blueshifted absorption lines of highly ionized iron at energies
usually greater than ~7 keV. The lack of sensitivity of present day X-ray
observatories at these energies gives rise to bias against the detection of
more ``extreme'' outflows, with highest velocity and ionization, which would be
blueshifted at energies >10 keV. Thus, simulations with Simbol-X were carried
out to test its capability of detecting absorption lines/edges between 5-20
keV, in order to probe the dynamics (i.e. measurement of velocity variations)
of the absorbing gas, as well as the highest (up to relativistic speeds)
velocity and ionization components. We found that the unprecedented sensitivity
of Simbol-X between 5-30 keV is a great opportunity to obtain important
improvements in this research field.
| astro-ph | chandra and xmmnewton xray observations are accumulating evidence for massive high velocity outflows in seyfert galaxies and quasars most likely originating very close to the central supermassive black hole these results are offering new potential to probe the launching regions of relativistic jetsoutflows and to quantify their feedback impact on the host galaxy andor cluster of galaxies the most important signature of these phenomena is the detection of blueshifted absorption lines of highly ionized iron at energies usually greater than 7 kev the lack of sensitivity of present day xray observatories at these energies gives rise to bias against the detection of more extreme outflows with highest velocity and ionization which would be blueshifted at energies 10 kev thus simulations with simbolx were carried out to test its capability of detecting absorption linesedges between 520 kev in order to probe the dynamics ie measurement of velocity variations of the absorbing gas as well as the highest up to relativistic speeds velocity and ionization components we found that the unprecedented sensitivity of simbolx between 530 kev is a great opportunity to obtain important improvements in this research field | [['chandra', 'and', 'xmmnewton', 'xray', 'observations', 'are', 'accumulating', 'evidence', 'for', 'massive', 'high', 'velocity', 'outflows', 'in', 'seyfert', 'galaxies', 'and', 'quasars', 'most', 'likely', 'originating', 'very', 'close', 'to', 'the', 'central', 'supermassive', 'black', 'hole', 'these', 'results', 'are', 'offering', 'new', 'potential', 'to', 'probe', 'the', 'launching', 'regions', 'of', 'relativistic', 'jetsoutflows', 'and', 'to', 'quantify', 'their', 'feedback', 'impact', 'on', 'the', 'host', 'galaxy', 'andor', 'cluster', 'of', 'galaxies', 'the', 'most', 'important', 'signature', 'of', 'these', 'phenomena', 'is', 'the', 'detection', 'of', 'blueshifted', 'absorption', 'lines', 'of', 'highly', 'ionized', 'iron', 'at', 'energies', 'usually', 'greater', 'than', '7', 'kev', 'the', 'lack', 'of', 'sensitivity', 'of', 'present', 'day', 'xray', 'observatories', 'at', 'these', 'energies', 'gives', 'rise', 'to', 'bias', 'against', 'the', 'detection', 'of', 'more', 'extreme', 'outflows', 'with', 'highest', 'velocity', 'and', 'ionization', 'which', 'would', 'be', 'blueshifted', 'at', 'energies', '10', 'kev', 'thus', 'simulations', 'with', 'simbolx', 'were', 'carried', 'out', 'to', 'test', 'its', 'capability', 'of', 'detecting', 'absorption', 'linesedges', 'between', '520', 'kev', 'in', 'order', 'to', 'probe', 'the', 'dynamics', 'ie', 'measurement', 'of', 'velocity', 'variations', 'of', 'the', 'absorbing', 'gas', 'as', 'well', 'as', 'the', 'highest', 'up', 'to', 'relativistic', 'speeds', 'velocity', 'and', 'ionization', 'components', 'we', 'found', 'that', 'the', 'unprecedented', 'sensitivity', 'of', 'simbolx', 'between', '530', 'kev', 'is', 'a', 'great', 'opportunity', 'to', 'obtain', 'important', 'improvements', 'in', 'this', 'research', 'field']] | [-0.05583368745596168, 0.10445506133449574, -0.027165110007689525, 0.09134370289424995, -0.08890183621977446, -0.11323466518973951, 0.022171772224077534, 0.4506228147375007, -0.14921592076193863, -0.40292045343867555, 0.039271846305959486, -0.34962538073981003, 0.028904275002298495, 0.22743633423521314, 0.03255154732527131, -0.02507057022747724, 0.031202796092432154, -0.07848988474041263, -0.050429380482553396, -0.23118105929805546, 0.2559588787005714, 0.1813037754887695, 0.17724841307493186, 0.06772422088530436, 0.0906125286854403, -0.10152741314052173, -0.05589863373797827, -0.01135129605041897, -0.10276024465115711, 0.09205544716428204, 0.294923857089773, 0.09547022032746745, 0.26680569861444736, -0.3443323772460703, -0.2008003610917317, 0.061998959800969526, 0.18586588323977526, 0.03376047279853474, -0.06254258865428906, -0.2968351362643623, 0.059395511908787155, -0.19152567842950224, -0.20834866722655151, 0.004124581851365585, 0.0318895085115156, 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712.2978 | On the physical nature of Anderson localization effect | An alternative explanation of the physical nature of Anderson localization
phenomenon and one of the most direct ways of its experimental study are
discussed.
| physics.gen-ph | an alternative explanation of the physical nature of anderson localization phenomenon and one of the most direct ways of its experimental study are discussed | [['an', 'alternative', 'explanation', 'of', 'the', 'physical', 'nature', 'of', 'anderson', 'localization', 'phenomenon', 'and', 'one', 'of', 'the', 'most', 'direct', 'ways', 'of', 'its', 'experimental', 'study', 'are', 'discussed']] | [-0.15512253957179686, 0.07212683945120564, -0.10193075864420582, 0.11195423174649477, -0.08260550706957777, -0.1304641375124144, 0.03404853989680608, 0.3241130793467164, -0.2297706064467396, -0.2702937977543722, 0.1021217168114769, -0.24830703813737878, -0.24270056665409356, 0.23534428452452025, 0.0016752074394995968, 0.03767147709004348, -0.0018195814142624538, 0.014921216837440928, -0.011926710877257088, -0.18787161159949997, 0.29064866082626395, 0.0750167556652741, 0.25994272317620926, 0.1115073562929562, 0.016374933048306655, 0.010325832098412016, -0.07382032950408757, -0.03215138144635906, -0.12115033277465652, 0.1653921638499014, 0.19242112447197238, 0.11137429974041879, 0.23796570533886552, -0.4220866186078638, -0.24518775035782406, 0.06796093269561727, 0.12945480889660152, 0.12016462239747246, -0.09621671624093626, -0.31193133428071934, 0.0758915935875848, -0.18939731285596886, -0.1954751048857967, -0.025361386748651665, 0.05882243280454228, -0.04734707353054546, -0.17073398487021527, 0.07911442018424471, 0.10715787042863667, 0.07224026683252305, -0.07936147128445252, -0.09726616134867072, 0.05916525520539532, 0.11947247987457861, 0.12351658169548803, -0.0686786688262752, 0.07174615752107154, -0.17369177856016904, -0.23465068824589252, 0.4424835906053583, 0.05728895973879844, -0.11228318570829288, 0.3302128678187728, -0.09537722232441108, -0.06859359903804337, 0.07264381528754409, 0.052343392880478255, 0.09789182369907697, -0.17788347140109786, 0.033503052465675864, -0.07528386707417667, 0.08552274182632875, -0.0038901407776090005, 0.147606532011802, 0.23810406207727888, 0.23915042363417646, 0.03205322780801604, 0.10549696092493832, -0.0862126462161541, -0.10598070764293273, -0.3387561793594311, -0.19304617897917828, -0.20593410982595137, 0.024440010194666684, -0.07550462288115038, -0.17596525217716893, 0.4676640040706843, 0.2367733270705988, 0.28280974505469203, -0.09865713872325917, 0.27114010602235794, 0.1274148952603961, -0.052163610758725554, -0.1041275137104094, 0.2722449083812535, 0.15039470141831165, 0.04760362634745737, -0.24676621883797148, 0.11184678731175761, 0.08007673988079962] |
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