article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
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astro-ph0210260 | deep surveys in many wavebands have shown that the rate at which stars were forming was at least a factor of 10 higher at redshifts @xmath0 than today . heavy elements ( ` metals ' ) are produced by stars , and the star formation history deduced by these surveys implies that a significant fraction of all metals in the ... | 238 |
1608.08403 | we elucidate the finite temperature entanglement properties of @xmath0 qubits heisenberg @xmath1 and @xmath2 models under the presence of a polarized magnetic field in @xmath3 plane by means of concurrence concept . we perform a systematic analysis for a wide range of the system parameters . our results suggest that th... | 210 |
0711.4147 | in this work we study the @xmath0 reaction . the leading order electromagnetic contributions to this process involve the @xmath1 vertex function with a highly virtual photon . we calculate this function at low energies using @xmath2 supplemented with the anomalous term for the @xmath3 interactions . tree level contribu... | 212 |
0906.4456 | we derive a closed - form solution for the price of an average price as well as an average strike geometric asian option , by making use of the path integral formulation . our results are compared to a numerical monte carlo simulation . we also develop a pricing formula for an asian option with a barrier on a control p... | 101 |
hep-ph0211385 | we show that the electroweak symmetry can be broken in a natural and phenomenologically acceptable way by a neutrino condensate . therefore , we assume as particle content only the chiral fermions and gauge bosons of the standard model and in addition right - handed neutrinos . a fundamental higgs field is absent . we ... | 209 |
1603.07835 | the effect of the geomagnetic lorentz force on the muon component of extensive air shower ( eas ) has been studied in a monte carlo generated simulated data sample . this geomagnetic field affects the paths of muons in an eas , causing a local contrast or polar asymmetry in the abundance of positive and negative muons ... | 173 |
astro-ph0610780 | in an effort to obtain further observational evidences for secular evolution processes in galaxies , as well as observational constraints to current theoretical models of secular evolution , we have used bvri and ks images of a sample of 18 barred galaxies to measure the lengths and colours of bars , create colour maps... | 183 |
astro-ph0312451 | we present an analysis of the two - point angular correlation function of the elais s1 survey . the survey covers 4 deg@xmath0 and contains 462 sources detected at 15@xmath1 m to a 5@xmath2 flux limit of 0.45 mjy . using the 329 extragalactic sources not repeated in different observations , we detect a significant clus... | 165 |
1607.01338 | the famous fisher - kpp reaction diffusion model combines linear diffusion with the typical fisher - kpp reaction term , and appears in a number of relevant applications . it is remarkable as a mathematical model since , in the case of linear diffusion , it possesses a family of travelling waves that describe the asymp... | 207 |
1507.01827 | we present the first detections by the nasa k2 mission of oscillations in solar - type stars , using short - cadence data collected during k2 campaign1 ( c1 ) . we understand the asteroseismic detection thresholds for c1-like levels of photometric performance , and we can detect oscillations in subgiants having dominan... | 129 |
1009.5441 | simulations estimating the brightness temperature ( @xmath0 ) of the redshifted 21-cm from the epoch of reionization ( eor ) often assume that the spin temperature ( @xmath1 ) is decoupled from the background cmb temperature and is much larger than it , i.e. , @xmath2 . although a valid assumption towards the latter st... | 260 |
astro-ph0407112 | we study centered and decentered nucleation of black holes in core - collapse of massive stars in binaries . by bekenstein s gravitational - radiation recoil mechanism , a newly nucleated black hole typically leaves the central core prematurely . with low probability , the black hole remains centered and matures to a h... | 151 |
0910.4695 | let @xmath0 be an algebraically closed field of characteristic @xmath1 . let @xmath2 be a semi - direct product of the form @xmath3 where @xmath4 is a positive integer and @xmath5 is a prime distinct from @xmath6 . in this paper , we study galois covers @xmath7 ramified only over @xmath8 with galois group @xmath2 . we ... | 132 |
1506.05324 | this paper studies the joint support recovery of similar sparse vectors on the basis of a limited number of noisy linear measurements , _ i.e. _ , in a multiple measurement vector ( mmv ) model . the additive noise signals on each measurement vector are assumed to be gaussian and to exhibit different variances . the si... | 178 |
1505.04976 | the first step in the coherent control of a photoinduced binary reaction is bond making or photoassociation . we have recently demonstrated coherent control of bond making in multi - photon femtosecond photoassociation of hot magnesium atoms , using linearly chirped pulses [ levin et al . , arxiv:1411.1542 ] . the dete... | 233 |
hep-ph9807262 | luminosity upgrades of the fermilab tevatron @xmath0 collider have been shown to allow experimental detection of a standard model ( sm ) higgs boson up to @xmath1 gev via @xmath2 events . this limit nearly saturates the parameter space for many models of weak scale supersymmetry ( susy ) with a minimal particle content... | 204 |
1106.6349 | the vierbein ( tetrad ) fields for closed and open friedmann - robertson - walker cosmologies are hard to work out in most of the theories featuring absolute parallelism . the difficulty is traced in the fact that these theories are not invariant under local lorentz transformations of the vierbein . we illustrate this ... | 105 |
1304.7283 | we have analyzed 3 observations of the high mass x - ray binary a0535 + 26 performed by the _ rossi x - ray timing explorer _ ( _ rxte _ ) 3 , 5 , and 6 months after the last outburst in 2011 february . we detect pulsations only in the second observation . the 320 kev spectra can be fit equally well with either an abso... | 209 |
0708.3548 | we investigate the ground state of the one - dimensional fermionic system enclosed in a hard - wall trap with attractive contact @xmath0-wave interactions . based on the bethe ansatz method , the explicit wave function is derived by numerically solving the bethe ansatz equations for the full physical regimes ( @xmath1 ... | 156 |
hep-lat0307027 | i review the results of hadron spectroscopy calculations from lattice qcd for an intended audience of low energy hadronic physicists . i briefly introduce the ideas of numerical lattice qcd . the various systematic errors , such as the lattice spacing and volume dependence , in lattice qcd calculations are discussed . ... | 105 |
1105.0484 | motivated by the phenomenology of transport through the golgi apparatus of cells , we study a multi - species model with boundary injection of one species of particle , interconversion between the different species of particle , and driven diffusive movement of particles through the system by chipping of a single parti... | 172 |
0909.2687 | we have obtained a full suite of _ spitzer _ observations to characterize the debris disk around hr 8799 and to explore how its properties are related to the recently discovered set of three massive planets orbiting the star . we distinguish three components to the debris system : ( 1 ) warm dust ( t @xmath0 150 k ) or... | 181 |
0704.3444 | we present a lattice boltzmann algorithm based on an underlying free energy that allows the simulation of the dynamics of a multicomponent system with an arbitrary number of components . the thermodynamic properties , such as the chemical potential of each component and the pressure of the overall system , are incorpor... | 113 |
1102.0511 | the origin of subdwarf b ( sdb ) stars is not fully understood yet since it requires high mass loss at the red giant stage . sdbs in close binary systems are formed via common envelope ejection , but the origin of apparently single sdb stars remains unclear . substellar companions may be able to trigger common envelope... | 236 |
1212.1753 | we present the reduced operator approximation : a simple , physically transparent and computationally efficient method of modelling open quantum systems . it employs the heisenberg picture of the quantum dynamics , which allows us to focus on the system degrees of freedom in a natural and easy way . we describe differe... | 165 |
physics0110019 | this study investigates the modifications of the thermal spectrum , at low frequency , induced by an external damping on a system in heat contact with internal fluctuating impurities . those impurities can move among locations and their oscillations are associated with a loss function depending on the model . the fluct... | 193 |
astro-ph0409137 | a generic assumption of ionization models of quasar absorption systems is that radiation from local sources is negligible compared with the cosmological background . we test this assumption and find that it is unlikely to hold for absorbers as rare as lyman limit systems . assuming that the absorption systems are gas c... | 197 |
1108.3144 | we have demonstrated an atom - optical lens , with the advantage of a small scale and flexible adjustment of the parameters , created by far red - detuned gaussian laser beam perpendicular to the propagation direction of the cold atomic cloud . this work presents the focusing and collimation effect of a cold atomic clo... | 104 |
astro-ph0411266 | we discuss the use of the bicoherence - a measure of the phase coupling of oscillations at different frequencies - as a diagnostic between different models for high frequency quasi - periodic oscillations from galactic black hole candidates . we show that this statistic is capable of finding qualitative distinctions be... | 115 |
1305.2012 | similar to the three - qubit greenberger - horne - zeilinger ( ghz ) symmetry we explore the four - qubit ghz symmetry group and its subgroup called restricted ghz symmetry group . while the set of symmetric states under the whole group transformation is represented by three real parameters , the set of symmetric state... | 113 |
1106.4175 | the polarization dependence of nonequilibrium transitions in a multistable cavity - polariton system is studied under a nanosecond long resonant optical excitation at the normal and magic angle incidences with various polarizations of the pump beam . the temporal correlations between the frequency , intensity , and opt... | 169 |
astro-ph9710371 | we present the first high - resolution near - infrared images of the edge - on silhouette circumstellar disk , orion 114 - 426 , made using nicmos on the _ hubble space telescope_. images taken against the bright nebular background of the ionized hydrogen pa@xmath0 line at 1.87 show the major axis of the disk to be app... | 196 |
hep-th9609216 | matrices are said to behave as free non - commuting random variables if the action which governs their dynamics constrains only their eigenvalues , i.e. depends on traces of powers of individual matrices . the authors use recently developed mathematical techniques in combination with a standard variational principle to... | 119 |
1003.4297 | by subjecting a dynamical system to a series of short pulses and varying several time delays we can obtain multidimensional characteristic measures of the system . multidimensional kullback - leibler response function ( klrf ) , which are based on the kullback - leibler distance between the initial and final states , a... | 141 |
1510.08054 | let @xmath0 , where @xmath1 denotes the @xmath2th smallest prime , and let @xmath3 ( the `` erds rankin '' function ) . we consider the sequence @xmath4 of normalized prime gaps , and show that its limit point set contains at least @xmath5 of nonnegative real numbers . we also show that the same result holds if @xmath6... | 121 |
astro-ph9607011 | ultra high energy gamma rays produce electron positron pairs in interactions on the geomagnetic field . the pair electrons suffer magnetic bremsstrahlung and the energy of the primary gamma ray is shared by a bunch of lower energy secondaries . these processes reflect the structure of the geomagnetic field and cause ex... | 119 |
1504.03097 | any network studied in the literature is inevitably just a sampled representative of its real - world analogue . additionally , network sampling is lately often applied to large networks to allow for their faster and more efficient analysis . nevertheless , the changes in network structure introduced by sampling are st... | 207 |
1501.00803 | understanding the interaction between cavity photons and electronic nanocircuits is crucial for the development of mesoscopic quantum electrodynamics ( qed ) . one has to combine ingredients from atomic cavity qed , like orbital degrees of freedom , with tunneling physics and strong cavity field inhomogeneities , speci... | 197 |
cond-mat9411132 | the fully - packed loop model of closed paths covering the honeycomb lattice is studied through its identification with the @xmath0 integrable lattice model . some known results from the bethe ansatz solution of this model are reviewed . the free energy , correlation length , and the ensemble average loop length are gi... | 122 |
1405.0446 | an undirected graph consists of a set of vertices and a set of undirected edges between vertices . such a graph may contain an abundant number of cycles , then a feedback vertex set ( fvs ) is a set of vertices intersecting with each of these cycles . constructing a fvs of cardinality approaching the global minimum val... | 187 |
gr-qc0509090 | the formulation of general relativity in which the @xmath0-dimensional space - time is embedded in a flat host space of higher dimension is reconsidered . new classes of embeddings ( modeled after nash s classical free embeddings ) are introduced . they present the important advantage of being deformable and therefore ... | 138 |
1604.05415 | the observables notion is shown to apply only to a limited range of theories . relational mechanics , slightly inhomogeneous cosmology and supergravity are used as examples that require further notions of observables . a suitably general notion of a - observables is then given to cover all of these cases . ` a ' here s... | 117 |
gr-qc0406038 | the standard post - newtonian approximation to gravitational waveforms , called t - approximants , from non - spinning black hole binaries are known not to be sufficiently accurate close to the last stable orbit of the system . a new approximation , called p - approximants , is believed to improve the accuracy of the w... | 294 |
0811.2130 | we use oblate axisymmetric dynamical models including dark halos to determine the orbital structure of intermediate mass to massive coma early - type galaxies . we find a large variety of orbital compositions . averaged over all sample galaxies the unordered stellar kinetic energy in the azimuthal and the radial direct... | 198 |
astro-ph0301008 | we present the results of the virgo high - resolution co survey ( vics ) obtained with the nobeyama millimeter - wave array ( nma ) . this survey was made in the course of a long - term project at nobeyama from 1999 december through 2002 april . the objects were selected from virgo cluster members , considering co rich... | 272 |
0706.2890 | possible origins of the molecular absorption discovered in some ulirgs are investigated , based on a 3-d hydrodynamic model of star - forming interstellar gas in a galactic central region . the blue - shifted , warm ( @xmath0 k ) , dense ( @xmath1 @xmath2 ) molecular gas suggested by co absorption in iras 08752 + 3915 ... | 172 |
1102.1047 | the experimental observation of quantum jumps is an example of single open quantum systems that , when monitored , evolve in terms of stochastic trajectories conditioned on measurements results . here we present a proposal that allows the experimental observation of a much larger class of quantum trajectories in cavity... | 127 |
1404.5576 | dirac equation describes the dynamics of a relativistic spin-1/2 particle regarding its spatial motion and intrinsic degrees of freedom . here we adopt the point of view that the spinors describe the state of a massive particle carrying two qubits of information : helicity and intrinsic parity . we show that the densit... | 254 |
1411.1760 | we consider the problem of star consumption by supermassive black holes in non - spherical ( axisymmetric , triaxial ) galactic nuclei . we review the previous studies of the loss - cone problem and present a novel simulation method which allows to separate out the collisional ( relaxation - related ) and collisionless... | 127 |
1208.2689 | we present the first definitive measurement of the absolute magnitude of rr lyrae c - type variable stars ( rrc ) determined purely from statistical parallax . we use a sample of 247 rrc selected from the all sky automated survey ( asas ) for which high - quality light curves , photometry and proper motions are availab... | 186 |
1005.4442 | we investigate isometric immersions of disks with constant negative curvature into @xmath0 , and the minimizers for the bending energy , _ i.e. _ the @xmath1 norm of the principal curvatures over the class of @xmath2 isometric immersions . we show the existence of smooth immersions of arbitrarily large geodesic balls i... | 193 |
0908.1108 | disk fragmentation resulting from the gravitational instability has been proposed as an efficient mechanism for forming giant planets . we use the planet fomalhaut b , the triple - planetary system hr 8799 , and the potential protoplanet associated with hl tau to test the viability of this mechanism . we choose the abo... | 240 |
chao-dyn9905017 | it has been shown recently that intermittency of the gledzer ohkitani yamada ( goy ) shell model of turbulence has to be related to singular structures whose dynamics in the inertial range includes interactions with a background of fluctuations . in this paper we propose a statistical theory of these objects by modelli... | 135 |
1407.5044 | the classic howard s algorithm , a technique of resolution for discrete hamilton - jacobi equations , is of large use in applications for its high efficiency and good performances . a special beneficial characteristic of the method is the superlinear convergence which , in presence of a finite number of controls , is r... | 190 |
1611.03186 | the idea of applying machine learning(ml ) to solve problems in security domains is almost 3 decades old . as information and communications grow more ubiquitous and more data become available , many security risks arise as well as appetite to manage and mitigate such risks . consequently , research on applying and des... | 237 |
0803.4154 | electronic transport through a triple quantum dot system , with only a single dot coupled directly to external leads , is considered theoretically . the model includes coulomb correlations in the central dot , while such correlations in the two side - coupled dots are omitted . the infinite-@xmath0 mean - field slave -... | 130 |
1405.5232 | we study the bulk viscosity taking dust matter in the generalized teleparallel gravity . we consider different dark energy models in this scenario along with a time dependent viscous model to construct the viscous equation of state parameter for these dark energy models . we discuss the graphical representation of this... | 131 |
1606.07162 | we consider continuous quantum measurement of a superconducting qubit in the circuit qed setup with a moderate bandwidth of the measurement resonator , i.e. , when the `` bad cavity '' limit is not applicable . the goal is a simple description of the quantum evolution due to measurement , i.e. , the measurement back - ... | 126 |
1606.02675 | for two symmetric quantum states one may be interested in maximizing the overlap under local operations applied to one of them . the question arises whether the maximal overlap can be obtained by applying the same local operation to each party . we show that for two symmetric multiqubit states and local unitary transfo... | 105 |
1006.5161 | most models designed to study the bidirectional movement of cargos as they are driven by molecular motors rely on the idea that motors of different polarities can be coordinated by external agents if arranged into a motor - cargo complex to perform the necessary work @xcite . although these models have provided us with... | 264 |
hep-th0001155 | we analyse a supersymmetric mechanical model derived from @xmath0-dimensional field theory with yukawa interaction , assuming that all physical variables take their values in a grassmann algebra @xmath1 . utilizing the symmetries of the model we demonstrate how for a certain class of potentials the equations of motion ... | 163 |
astro-ph0409044 | i present a new method to unveil the history of cosmic accretion and the build - up of supermassive black holes ( smbh ) in the nuclei of galaxies , based on observations of the evolving radio and ( hard ) x - ray luminosity functions of agn . the fundamental plane of black hole activity discovered by merloni , heinz &... | 248 |
physics0407100 | recently , cesium atoms in optical lattices subjected to cycles of unequally - spaced pulses have been found to show interesting behavior : they represent the first experimental demonstration of a hamiltonian ratchet mechanism , and they show strong variability of the dynamical localization lengths as a function of ini... | 158 |
math-ph0501057 | in this paper we present a brief description of a ladder operator formalism applied to orthogonal polynomials with discontinuous weights . the two coefficient functions , @xmath0 and @xmath1 , appearing in the ladder operators satisfy the two fundamental compatibility conditions previously derived for smooth weights . ... | 155 |
1209.3761 | manifold matching works to identify embeddings of multiple disparate data spaces into the same low - dimensional space , where joint inference can be pursued . it is an enabling methodology for fusion and inference from multiple and massive disparate data sources . in this paper we focus on a method called canonical co... | 119 |
1012.3962 | the quotient complexity , also known as state complexity , of a regular language is the number of distinct left quotients of the language . the quotient complexity of an operation is the maximal quotient complexity of the language resulting from the operation , as a function of the quotient complexities of the operands... | 153 |
0809.2794 | we measure the logarithmic scatter in mass at fixed richness for clusters in the maxbcg cluster catalog , an optically selected cluster sample drawn from sdss imaging data . our measurement is achieved by demanding consistency between available weak lensing and x - ray measurements of the maxbcg clusters , and the x - ... | 203 |
1009.2308 | we present the results of a study of differential rotation on the k2 iv primary of the rs cvn binary ii pegasi ( hd 224085 ) performed by inverting light curves to produce images of the dark starspots on its surface . the data were obtained in the standard johnson @xmath0 and @xmath1 filter passbands via the tennessee ... | 276 |
cond-mat0307422 | recently , riolo et al . [ r. l. riolo et al . , nature * 414 * , 441 ( 2001 ) ] showed by computer simulations that cooperation can arise without reciprocity when agents donate only to partners who are sufficiently similar to themselves . one striking outcome of their simulations was the observation that the number of... | 194 |
0901.1533 | in order to investigate the relationship between superconductivity and magnetism in bilayer - hydrate cobaltate na@xmath0(h@xmath1o)@xmath2coo@xmath3h@xmath4o co nuclear magnetic resonance ( nmr ) and nuclear quadrupole resonance ( nqr ) measurements were performed on three different samples , which demonstrate various... | 152 |
1411.5264 | tidal downsizing ( td ) is a recently developed planet formation theory that supplements the classical gravitational disc instability ( gi ) model with planet migration inward and tidal disruptions of gi fragments in the inner regions of the disc . numerical methods for a detailed population synthesis of td planets are... | 220 |
cond-mat0205024 | it is shown that the dynamics of a two - dimensional crystal with a finite concentration of dislocations , as well as vacancy and interstitial defects , is governed by the hydrodynamic equations of a viscoelastic medium . at the longest length scales the viscoelasticity is described by the simplest _ maxwell _ model , ... | 101 |
1003.3008 | here , we report on our results where self - consistent calculations are performed to investigate the interference conditions , numerically . we employ the successful 4@xmath0 order grid technique to obtain the actual electrostatic quantities of the samples used at the quantum hall based aharonov - bohm interferometers... | 113 |
cond-mat0112421 | we have studied the effect of thermal annealing on electron dephasing times @xmath0 in three - dimensional polycrystalline metals . measurements are performed on as - sputtered and annealed aupd and sb thick films , using weak - localization method . in all samples , we find that @xmath0 possesses an extremely weak tem... | 127 |
astro-ph0210337 | lenticular galaxies remain remarkably mysterious as a class . observations to date have not led to any broad consensus about their origins , properties and evolution , though they are often thought to have formed in one big burst of star formation early in the history of the universe , and to have evolved relatively pa... | 257 |
1303.1769 | in this paper we show global existence of lipschitz continuous solution for the stable muskat problem with finite depth ( confined ) and initial data satisfying some smallness conditions relating the amplitude , the slope and the depth . the cornerstone of the argument is that , for these _ small _ initial data , both ... | 192 |
cond-mat0504259 | the equilibrium thermodynamics of the two dimensional su - schrieffer - heeger model is derived by means of a path integral method which accounts for the variable range of the electronic hopping processes . while the lattice degrees of freedom are classical functions of time and are integrated out exactly , the electro... | 148 |
1007.1123 | we present results from multi - epoch neutral hydrogen ( hi ) absorption observations of six bright pulsars with the arecibo telescope . moving through the interstellar medium ( ism ) with transverse velocities of 10150 au yr@xmath0 , these pulsars have swept across 1200 au over the course of our experiment , allowing ... | 263 |
1011.4860 | the emission of @xmath0 pairs off electrons in a polarized ultra - intense electromagnetic ( e.g. laser ) wave field is analyzed . we elaborate on the significance of non - linear electrodynamics effects ( i.e. , multi - photon processes ) and the peculiarities of neutrino production . special attention is devoted to t... | 120 |
1411.4878 | we present the complete next - to - leading order calculation of isolated prompt photon production in association with a jet in deep - inelastic scattering . the calculation involves , direct , resolved and fragmentation contributions . it is shown that defining the transverse momenta in the proton virtual - photon fra... | 245 |
0711.2539 | the structural , electronic and lattice dielectric properties of multiferroic tbmn@xmath0o@xmath1 are investigated using density functional theory within the generalized gradient approximation ( gga ) . we use collinear spin approximations and ignore the spin - orbit coupling . the calculated structural parameters are ... | 153 |
1307.2788 | the coupled discrete linear and kerr nonlinear schrdinger equations with gain and loss describing transport on dimers with parity - time ( @xmath0 ) symmetric potentials are considered . the model is relevant among others to experiments in optical couplers and proposals on bose - einstein condensates in @xmath0symmetri... | 140 |
astro-ph0003390 | star clusters open and globulars experience dynamical evolution on time scales shorter than their age . consequently , open and globular clusters provide us with unique dynamical laboratories for learning about two - body relaxation , mass segregation from equipartition of energy , and core collapse . we review briefly... | 105 |
1607.00405 | stem ( science , technology , engineering , and mathematics ) fields have become increasingly central to u.s . economic competitiveness and growth . the shortage in the stem workforce has brought promoting stem education upfront . the rapid growth of social media usage provides a unique opportunity to predict users rea... | 181 |
1209.2707 | dusty galaxies at @xmath0 span a wide range of relative brightness between rest - frame mid - infrared ( 8@xmath1 ) and ultraviolet wavelengths . we attempt to determine the physical mechanism responsible for this diversity . dust - obscured galaxies ( dogs ) , which have rest - frame mid - ir to uv flux density ratios... | 292 |
0912.0548 | the mock lisa data challenges are a program to demonstrate lisa data - analysis capabilities and to encourage their development . each round of challenges consists of one or more datasets containing simulated instrument noise and gravitational waves from sources of undisclosed parameters . participants analyze the data... | 145 |
astro-ph0509044 | we have studied the time variation of the radial abundance gradients using samples of planetary nebulae , open clusters , cepheids and other young objects . based on the analysis of o / h and s / h abundances for planetary nebulae and metallicities of the remaining objects , we concluded that the gradients have been fl... | 122 |
1412.0116 | observing the ckm matrix elements written in different parametrization schemes , one can notice obvious relations among the sine - values of the cp phases in those schemes . using the relations , we establish a few parametrization - independent equations , by which the matrix elements of the ckm matrix can be completel... | 183 |
1107.4009 | an increasing fraction of today social interactions occur using online social media as communication channels . recent worldwide events , such as social movements in spain or revolts in the middle east , highlight their capacity to boost people coordination . online networks display in general a rich internal structure... | 235 |
cond-mat0401064 | we review the normal and superconducting state properties of the unconventional triplet superconductor sr@xmath0ruo@xmath1 with an emphasis on the analysis of the magnetic susceptibility and the role played by strong electronic correlations . in particular , we show that the magnetic activity arises from the itinerant ... | 228 |
hep-ph0311037 | in the minimal supersymmetric standard model ( mssm ) , the neutralinos , the spin1/2 majorana superpartners of the neutral gauge and higgs bosons , are expected to be among the light supersymmetric particles that can be produced copiously at future high energy colliders . we analyze two body neutralino decays into a n... | 197 |
astro-ph0107020 | we study numerically the thermal emission of @xmath0 pairs from a bare strange star heated by energy input onto its surface ; heating starts at some moment , and is steady afterwards . the thermal luminosity in @xmath0 pairs increases to some constant value . the rise time and the steady thermal luminosity are evaluate... | 140 |
cond-mat0410169 | following a previous work [ shen , ma , xie and zhang , phys . rev . lett . 92 , 256603 ( 2004 ) ] on the resonant spin hall effect , we present detailed calculations of the spin hall conductance in two - dimensional quantum wells in a strong perpendicular magnetic field . the rashba coupling , generated by spin - orbi... | 232 |
1008.1205 | we present a michelson - morley type experiment for testing the isotropy of the speed of light in vacuum and matter . the experiment compares the resonance frequency of a monolithic optical sapphire resonator with the resonance frequency of an orthogonal evacuated optical cavity made of fused silica while the whole set... | 130 |
cs0608027 | the myads - arxiv service provides the scientific community with a one stop shop for staying up - to - date with a researcher s field of interest . the service provides a powerful and unique filter on the enormous amount of bibliographic information added to the ads on a daily basis . it also provides a complete view w... | 157 |
1101.0186 | extending the results of s. y. cheng and s .- t . yau it is shown that a strictly pseudoconvex domain @xmath0 in a complex manifold carries a complete khler - einstein metric if and only if its canonical bundle is positive , i.e. admits an hermitian connection with positive curvature . we consider the restricted case i... | 178 |
1106.4911 | we present the self - consistent treatment of the simplest , nontrivial , self - gravitating system of degenerate neutrons , protons and electrons in @xmath0-equilibrium within relativistic quantum statistics and the einstein - maxwell equations . the impossibility of imposing the condition of local charge neutrality o... | 185 |
1507.02334 | battery electrode surfaces are generally coated with electronically insulating solid films of thickness 1 - 50 nm . both electrons and li@xmath0 can move at the electrode - surface film interface in response to the voltage , which adds complexity to the `` electric double layer '' ( edl ) . we apply density functional ... | 231 |
1611.06446 | the group @xmath0 consists of @xmath1-by-@xmath1 monomial matrices whose entries are @xmath2th roots of unity . it is generated by @xmath1 complex reflections acting on @xmath3 . the reflecting hyperplanes give rise to a ( hyperplane ) arrangement @xmath4 . the internal zonotopal algebra of an arrangement is a finite d... | 158 |
0711.2325 | we propose a cavity qed setup which implements a dissipative lipkin - meshkov - glick model an interacting collective spin system . by varying the external model parameters the system can be made to undergo both first - and second - order quantum phase transitions , which are signified by dramatic changes in cavity out... | 112 |
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