article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
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1303.5029 | studies related to _ crowds _ of pedestrians , both those of theoretical nature and application oriented ones , have generally focused on either the _ analysis _ or the _ synthesis _ of the phenomena related to the interplay between individual pedestrians , each characterised by goals , preferences and potentially rele... | 219 |
astro-ph0608567 | forthcoming advances in direct gravitational wave detection from kilohertz to nanohertz frequencies have unique capabilities to detect signatures from or set meaningful constraints on a wide range of new cosmological phenomena and new fundamental physics . a brief survey is presented of the post - inflationary gravitat... | 139 |
1302.4787 | we report superconducting properties of agsnse@xmath0 which is a conventional type - ii superconductor in the very dirty limit due to intrinsically strong electron scatterings . while this material is an isotropic three - dimensional ( 3d ) superconductor with a not - so - short coherence length where strong vortex flu... | 129 |
1505.02254 | this paper presents numerical results for the two - dimensional isotropic kuramoto - sivashinsky equation ( kse ) with an additional nonlinear term and a single independent parameter . surfaces generated by this equation exhibit a certain dependence of the average saturated roughness on the system size that indicates p... | 121 |
1602.02980 | turbulence theory is usually concerned with the statistical moments of the velocity and its fluctuations . one could also analyze the implicit probability distributions . this is the purview of information theory . here we use information theory , specifically the conditional entropy , to analyze ( quasi-)2d turbulence... | 132 |
q-bio0507013 | we investigate the dynamics of a simple epidemiological model for the invasion by a pathogen strain of a population where another strain circulates . we assume that reinfection by the same strain is possible but occurs at a reduced rate due to acquired immunity . the rate of reinfection by a distinct strain is also red... | 208 |
1409.6283 | we study the energy dependent photon variability from a thermal comptonizing plasma that is oscillating at khz frequencies . in particular , we solve the linearised time dependent kompaneets equation and consider the oscillatory perturbation to be either in the soft photon source or in the heating rate of the plasma . ... | 296 |
hep-ph9512406 | the distribution of the spin of the nucleon among its constituents can be parametrized in the form of polarized parton distribution functions for quarks and gluons . using all available data on the polarized structure function @xmath0 , we determine these distributions both at leading and next to leading order in pertu... | 138 |
1004.1064 | we report on a computer simulation and integral equation study of a simple model of patchy spheres , each of whose surfaces is decorated with two opposite attractive caps , as a function of the fraction @xmath0 of covered attractive surface . the simple model explored the two - patch kern - frenkel model interpolates b... | 274 |
1010.2301 | interplay between the spectator and participant matter in heavy - ion collisions is investigated within isospin dependent quantum molecular dynamics ( iqmd ) model in term of rapidity distribution of light charged particles . the effect of different type and size rapidity distributions is studied in elliptical flow . t... | 166 |
1304.3340 | we introduce a family of criteria to detect quantum non - gaussian states of a harmonic oscillator , that is , quantum states that can not be expressed as a convex mixture of gaussian states . in particular we prove that , for convex mixtures of gaussian states , the value of the wigner function at the origin of phase ... | 173 |
1009.3206 | it is generally difficult to experimentally distinguish magnetic multipolar orders in spin systems . recently , it was proposed that the temperature dependence of the nuclear magnetic resonance relaxation rate @xmath0 can involve an indirect , but clear signature of the field - induced spin nematic or multipolar tomona... | 163 |
1503.08794 | this essay discusses phenomenological aspects of the diffusion time dependence of the spectral dimension predicted by the causal dynamical triangulations ( cdt ) approach to quantum gravity . the deformed form of the dispersion relation for the fields defined on the cdt space - time is reconstructed . using the _ fermi... | 177 |
0706.0419 | an introductory review on the critical behaviour of some irreversible reaction systems is given . the study of these systems has attracted great attention during the last decades due to , on the one hand , the rich and complex underlying physics , and on the other hand , their relevance for numerous technological appli... | 249 |
1312.2405 | we study coherent structures in solar photospheric flows in a plage in the vicinity of the active region ar 10930 using the horizontal velocity data derived from hinode / sot magnetograms . eulerian and lagrangian coherent structures are detected by computing the q - criterion and the finite - time lyapunov exponents o... | 143 |
1202.1458 | recent work by polyanskiy et al . and chen et al . has excited new interest in using feedback to approach capacity with low latency . polyanskiy showed that feedback identifying the first symbol at which decoding is successful allows capacity to be approached with surprisingly low latency . this paper uses chen s rate ... | 242 |
1504.02899 | the notion of absorption was developed a few years ago by barto and kozik and immediately found many applications , particularly in topics related to the constraint satisfaction problem . we investigate the behavior of absorption in semigroups and @xmath0-ary semigroups ( that is , algebras with one @xmath0-ary associa... | 148 |
1508.03325 | inspired by the fact that people have diverse propensities to punish wrongdoers , we study a spatial public goods game with defectors and different types of punishing cooperators . during the game , cooperators punish defectors with class - specific probabilities and subsequently share the associated costs of sanctioni... | 205 |
1205.3897 | irreversible adsorption of spheres on flat collectors having dimension @xmath0 is studied . molecules are adsorbed on sierpinski s triangle and carpet like fractals ( @xmath1 ) , and on general cantor set ( @xmath2 ) . adsorption process is modeled numerically using random sequential adsorption ( rsa ) algorithm . the ... | 119 |
astro-ph0310719 | we present an extensive synthetic observational analysis of numerically - simulated radio galaxies designed to explore the effectiveness of conventional observational analyses at recovering physical source properties . these are the first numerical simulations with sufficient physical detail to allow such a study . the... | 295 |
0906.1753 | we investigate the exchange bias and training effects in the fm / af heterostructures using a unified monte carlo dynamical approach . this real dynamical method has been proved reliable and effective in simulating dynamical magnetization of nanoscale magnetic systems . the magnetization of the uncompensated af layer i... | 200 |
1110.3554 | it is well known that boundary conditions on quantum fields produce divergences in the renormalized energy - momentum tensor near the boundaries . although irrelevant for the computation of casimir forces between different bodies , the self - energy couples to gravity , and the divergences may , in principle , generate... | 127 |
0810.0554 | the distribution of votes of one of the corporate parties in mexico during elections of 2000 , 2003 and 2006 is analyzed . after proper normalization and unfolding , the agreement of the votes distributions with those of daisy models of several ranks is good . these models are generated by retaining each @xmath0 level ... | 114 |
quant-ph9903039 | we demonstrate superadditivity in the communication capacity of a binary alphabet consisting of two nonorthogonal quantum states . for this scheme , collective decoding is performed two transmissions at a time . this improves upon the previous schemes of sasaki _ et al_. [ phys . rev . a * 58 * , 146 ( 1998 ) ] where s... | 146 |
cond-mat0503717 | motion of vortices in two - dimensional superfluids in the classical limit is studied by solving the gross - pitaevskii equation numerically on a uniform lattice . we find that , in the presence of a superflow directed along one of the main lattice periods , vortices move with the superflow on fine lattices but perpend... | 104 |
1609.08993 | using time- and angle - resolved photoemission spectroscopy with selective near- and mid - infrared photon excitations , we investigate the femtosecond dynamics of the charge density wave ( cdw ) phase in 1_t_-tise@xmath0 , as well as the dynamics of cdw fluctuations at 240 k. in the cdw phase , we observe the coherent... | 132 |
1407.1171 | an appearance of a direct current perpendicularly to a constant component of an electric field in material with rashba hamiltonian under the influence of an elliptically polarized wave is investigated in one - subband approximation . on its physical nature this effect is close to a circular photogalvanic effect ( cpge ... | 221 |
1611.07846 | cobalt clusters covered with benzene in the form of rice - ball structures have recently been synthesized using laser ablation . here , we investigate the types of magnetic order such clusters have , and whether they retain any magnetic order at all . we use different density functional theory ( dft ) methods to study ... | 180 |
0801.4455 | a variety of magnetohydrodynamic mechanisms that may play a role in magnetic , chemically peculiar ( mcp ) stars is reviewed . these involve dynamo mechanisms in laminar flows as well as turbulent environments , and magnetic instabilities of poloidal and toroidal fields as well as combinations of the two . while the pr... | 100 |
cond-mat0512491 | we report the amplitude scaling behavior of frenkel exciton chains with nearest - neighbor correlated off - diagonal random interactions . the band center spectrum and its localization properties are investigated through the integrated density of states and the inverse localization length . the correlated random intera... | 175 |
0905.2964 | we examine whether the cosmic ray positron excess observed by pamela can be explained by neutralino annihilation in the next - to - minimal supersymmetric standard model ( nmssm ) . the main dark matter annihilation products are the lightest @xmath0-even scalar @xmath1 plus the lightest @xmath0-odd scalar @xmath2 , wit... | 259 |
cond-mat9509056 | in this paper we report on a monte carlo study of a diluted ising antiferromagnet on a fcc lattice . this is a typical model example of a highly frustrated antiferromagnet , and we ask , whether sufficient random dilution of spins does produce a spin glass phase . our data strongly indicate the existence of a spin glas... | 137 |
1011.0058 | helicity - dependent incoherent pion photoproduction in the reaction @xmath0 is studied in the framework of the diagrammatic approach . contributions to the reaction amplitude from diagrams corresponding to impulse approximation as well as @xmath1 and @xmath2 interactions in the final state have been evaluated . the el... | 207 |
1403.0313 | one of the most important features of quantum theory is the uncertainty principle . amount various uncertainty relations , the profound fine - grained uncertainty relation ( fgur ) is used to distinguish the uncertainty inherent in obtaining any combination of outcomes for different measurements . in this paper , we ex... | 235 |
0711.4811 | the transparent sun is modeled as a spherically symmetric and centrally condensed gravitational lens using recent standard solar model ( ssm ) data . the sun s minimum focal length is computed to a refined accuracy of 23.5 @xmath0 au , just beyond the orbit of uranus . the sun creates a single image of a distant point ... | 174 |
1410.1481 | be it for taking advantage of stock undervaluation or in order to distribute part of their profits to shareholders , firms may buy back their own shares . one of the way they proceed is by including accelerated share repurchases ( asr ) as part of their repurchase programs . in this article , we study the pricing and o... | 164 |
cond-mat9909120 | we calculate the resistance between two arbitrary grid points of several infinite lattice structures of resistors by using lattice green s functions . the resistance for @xmath0 dimensional hypercubic , rectangular , triangular and honeycomb lattices of resistors is discussed in detail . we give recurrence formulas for... | 146 |
astro-ph9808206 | we present a catalogue of h band spectra for 85 stars of approximately solar abundance observed at a resolving power of 3000 with the kpno mayall 4 m fts . the atlas covers spectral types o7m5 and luminosity classes i - v as defined on the mk system . we identify both atomic and molecular indices and line ratios which ... | 155 |
1208.2717 | deep hst broad - band images taken with acs and wfpc2 of the giant ( @xmath0 au diameter ) dark silhouette proplyd 114 - 426 in the orion nebula show that this system is tilted , asymmetric , warped and photoevaporated . the exquisite angular resolution of acs allows us to map the distribution of dust grains at the nor... | 289 |
1101.4212 | the band structure of fully hydrogenated si nanosheets and nanotubes are elucidated by the use of an empirical tight - binding model . the hydrogenated si sheet is a semiconductor with indirect band gap of about @xmath0ev . the symmetries of the wave functions allow us to explain the origin of the gap . we predict that... | 114 |
1110.0845 | recent work has indicated that ghost imaging may have applications in standoff sensing . however , most theoretical work has addressed transmission - based ghost imaging . to be a viable remote - sensing system , the ghost imager needs to image rough - surfaced targets in reflection through long , turbulent optical pat... | 132 |
0903.2709 | we present a real - time diagrammatic formalism to study adiabatic pumping in chains of tunnel - coupled metallic islands . this approach is based on an expansion to linear order in the frequency of the time - dependent parameters and on a systematic perturbation expansion in the tunnel - coupling strength . we apply o... | 118 |
astro-ph9703046 | unless there is evidence for fractal scaling with a single exponent over distances @xmath0 then the widely accepted notion of scale invariance of the correlation integral for @xmath1 must be questioned . the attempt to extract a scaling exponent @xmath2 from the correlation integral @xmath3 by plotting @xmath4 vs. @xma... | 191 |
0806.0083 | astronomical observations have shown that small carbonaceous molecules can persist in interstellar clouds exposed to intense ultraviolet radiation . current astrochemical models lack quantitative information on photodissociation rates in order to interpret these data . we here present _ ab initio _ multi - reference co... | 179 |
astro-ph0603832 | we present smarts consortium optical / ir light curves of sn 2006aj associated with grb 060218 . we find that this event is broadly similar to two previously observed events sn 1998bw / grb 980425 and sn 2003lw / grb 031203 . in particular , all of these events are greatly under - luminous in gamma - rays compared to t... | 157 |
1512.03845 | we consider a composite system consisting of coupled particles , and investigate decoherence due to coupling of the center - of - mass degree of freedom with the internal degrees of freedom . for a simple model of two bound particles , we show that in general such a decoherence effect exists , and leads to suppression ... | 225 |
1507.02804 | using the theory of elasticity of polymer gels we show that large - scale _ cross - link _ density patterns written into the structure of the network in the melt state , can be revealed upon swelling by monitoring the _ monomer _ density patterns . we find that while isotropic deformations in good solvent yield magnifi... | 153 |
hep-ph0606187 | within the framework of qcd light - cone sum rules ( lcsr ) , we calculate the form factor for @xmath0 transitions with chiral current correlator . the resulting form factor depends on the distribution amplitude ( da ) of the @xmath1-meson . we try to use three kinds of da models of the @xmath1-meson . in the velocity ... | 186 |
0902.2182 | for systems in an externally controllable time - dependent potential , the optimal protocol minimizes the mean work spent in a finite - time transition between given initial and final values of a control parameter . for an initially thermalized ensemble , we consider both hamiltonian evolution for classical systems and... | 160 |
0709.1022 | the decay @xmath0 is discussed in the minimal supersymmetric standard model with general flavor mixing for squarks , at large @xmath1 . in this case , in addition to the chargino loop contributions which were analyzed in previous studies , @xmath1-enhanced contributions from the gluino and charged higgs boson loops mig... | 127 |
astro-ph0601378 | we present results from a short _ chandra_/acis - s observation of ngc 7618 , the dominant central galaxy of a nearby ( @xmath0=0.017309 , d=74.1 mpc ) group . we detect a sharp surface brightness discontinuity 14.4 kpc n of the nucleus subtending an angle of 130@xmath1 with an x - ray tail extending @xmath2 70 kpc in ... | 260 |
astro-ph0112185 | we describe a practical method for constructing axisymmetric two - integral galaxy models ( with distribution functions of the form @xmath0 , in which @xmath1 is the orbital energy , and @xmath2 is the vertical component of the angular momentum ) , based on schwarzschild s orbit superposition method . other @xmath0-met... | 218 |
0810.4376 | based on the analogue spacetime programme , and many other ideas currently mooted in `` quantum gravity '' , there is considerable ongoing speculation that the usual pseudo - riemannian ( lorentzian ) manifolds of general relativity might eventually be modified at short distances . two specific modifications that are o... | 232 |
0907.0226 | the totally asymmetric simple exclusion process ( tasep ) on @xmath0 with the bernoulli-@xmath1 measure as initial conditions , @xmath2 , is stationary . it is known that along the characteristic line , the current fluctuates as of order @xmath3 . the limiting distribution has also been obtained explicitly . in this pa... | 101 |
hep-ex0602007 | the inclusive jet , dijet and trijet production cross - sections in deep - inelastic scattering ( dis ) at @xmath0 @xmath1 have been measured at the electron - proton collider hera by the h1 and zeus collaborations using data taken in 19982000 . the jet cross - sections have been measured differentially in four - momen... | 207 |
hep-ph0502230 | the hypothesis about the relation between the observed alignment of spots in the x - ray film in cosmic ray emulsion experiments and the features of events in which jets prevail at super high energies is tested . due to strong dynamical correlation between jet axis directions and that between momenta of jet particles (... | 206 |
1208.1404 | we investigate @xmath0 partition function of @xmath1 supersymmetric gauge theories . a gauge theory on the orbifold has degenerate vacua specified by the holonomy . the partition function is obtained by summing up the contributions of saddle points with different holonomies . an appropriate choice of the phase of each ... | 104 |
0805.1839 | the full dynamics of a synchronous recurrent neural network model with ising binary units and a hebbian learning rule with a finite self - interaction is studied in order to determine the stability to synaptic and stochastic noise of frozen - in states that appear in the absence of both kinds of noise . both , the nume... | 133 |
1008.0402 | neutron rich matter is at the heart of many fundamental questions in nuclear physics and astrophysics . what are the high density phases of qcd ? where did the chemical elements come from ? what is the structure of many compact and energetic objects in the heavens , and what determines their electromagnetic , neutrino ... | 220 |
math9802040 | using the theory of plugs and the self - insertion construction due to the second author , we prove that a foliation of any codimension of any manifold can be modified in a real analytic or piecewise - linear fashion so that all minimal sets have codimension 1 . in particular , the 3-sphere @xmath0 has a real analytic ... | 167 |
1504.06405 | in this paper we show that electron - positron pairs can be pumped inexhaustibly with a constant production rate from the one - dimensional well potential with oscillating depth or width . bound states embedded in the the dirac sea can be pulled out and pushed to the positive continuum , become scattering states . paul... | 125 |
0901.1547 | the extrasolar planets ( eps ) so far detected are very different to the planets in our own solar system . many of them have jupiter - like masses and close - in orbits ( the so - called hot planets , hps ) , with orbital periods of only a few days . in this paper , we present a new statistical analysis of the observed... | 220 |
cond-mat0306673 | the thermodynamic properties of a classical @xmath0-dimensional spin-@xmath1 heisenberg ferromagnet , with long - range interactions decaying as @xmath2 and in the presence of an external magnetic field , is investigated by means of the spectral density method in the framework of classical statistical mechanics . we fi... | 106 |
1001.2455 | a sample of 286 gamma - ray bursts , detected by swift satellite , is studied statistically by the @xmath0 test and the student t - test , respectively . the short and long subgroups are well detected in the swift data . but no intermediate subgroup is seen . the non - detection of this subgroup in the swift database c... | 119 |
1205.4582 | we present results from our quantitative study of statistical and network properties of literary and scientific texts written in two languages : english and polish . we show that polish texts are described by the zipf law with the scaling exponent smaller than the one for the english language . we also show that the sc... | 246 |
0805.4447 | we revisit recent claims about the instability of non - rotating tunnel coupled annular bose - einstein condensates leading to the emergence of angular - momentum josephson oscillation [ phys . rev . lett . * 98 * , 050401 ( 2007 ) ] . it was predicted that all stationary states with uniform density become unstable in ... | 158 |
1605.02407 | we study the @xmath0 production mechanism in @xmath1 annihilations in the framework of hadronic molecules and investigate the consequence of such a picture in different decay channels . in the hadronic molecule picture the @xmath0 is described as a mixture state composed of a long - ranged @xmath2 molecule state and a ... | 210 |
cond-mat9506035 | we study the competition between the exchange and the direct coulomb interaction near the edge of a two - dimensional electron gas in a strong magnetic field using density - functional theory in a local approximation for the exchange - energy functional . exchange is shown to play a significant role in reducing the spa... | 120 |
math0702192 | given a coxeter system @xmath0 equipped with an involutive automorphism @xmath1 , the set of _ twisted identities _ is @xmath2 we point out how @xmath3 shows up in several contexts and prove that if there is no @xmath4 such that @xmath5 is of odd order greater than @xmath6 , then the bruhat order on @xmath3 is a graded... | 142 |
astro-ph0604230 | new @xmath0 photometry and optical spectroscopy of the type iip supernova 2004dj in ngc 2403 , obtained during the first year since discovery , are presented . the progenitor cluster , sandage 96 , is also detected on pre - explosion frames . the light curve indicates that the explosion occured about 30 days before dis... | 276 |
math0502220 | we consider a generalized version of knuth s parking problem , in which caravans consisting of a random number of cars arrive at random on the unit circle . then each car turns clockwise until it finds a free space to park . extending a recent work by chassaing and louchard @xcite , we relate the asymptotics for the si... | 122 |
0810.4453 | glueballs are particles whose valence degrees of freedom are gluons and therefore in their description the gauge field plays a dominant role . we review recent results in the physics of glueballs with the aim set on phenomenology and discuss the possibility of finding them in conventional hadronic experiments and in th... | 121 |
1507.01566 | we report interferometric mapping of the bipolar pre - planetary nebula iras08005 - 2356 ( i08005 ) with an angular - resolution of @xmath015 , using the submillimeter array ( sma ) , in the @xmath1co j=21 , 32 , @xmath2co j=21 and sio j=54 ( v=0 ) lines . single - dish observations , using the smt 10-m , were made in ... | 201 |
1403.1671 | standard density functional approximations often give questionable results for odd - electron radical complexes , with the error typically attributed to self - interaction . in density corrected density functional theory ( dc - dft ) , certain classes of density functional theory calculations are significantly improved... | 145 |
0710.5137 | we investigate the effect of dephasing / decoherence on quantum transport through open chaotic ballistic conductors in the semiclassical limit of small fermi wavelength to system size ratio , @xmath0 . we use the trajectory - based semiclassical theory to study a two - terminal chaotic dot with decoherence originating ... | 240 |
physics9709003 | n - body algorithms for long - range unscreened interactions like gravity belong to a class of highly irregular problems whose optimal solution is a challenging task for present - day massively parallel computers . in this paper we describe a strategy for optimal memory and work distribution which we have applied to ou... | 247 |
0809.2198 | at low metallicity , b - type stars show lower loss of mass and , therefore , angular momentum so that it is expected that there are more be stars in the magellanic clouds than in the milky way . however , till now , searches for be stars were only performed in a very small number of open clusters in the magellanic clo... | 194 |
cond-mat0608682 | the anomalous hall effect ( ahe ) is a consequence of spin - orbit coupling in a ferromagnetic metal and related primarily to density - matrix response to an electric field that is off - diagonal in band index . for this reason disorder contributions to the ahe are difficult to treat systematically using a semi - class... | 153 |
1304.4048 | in this paper we explore how recent technologies can improve the security of optical networks . in particular , we study how to use quantum key distribution ( qkd ) in common optical network infrastructures and propose a method to overcome its distance limitations . qkd is the first technology offering information theo... | 288 |
0707.1890 | we find the quasinormal modes of the charged scalar and dirac fields in the background of the rotating charged black holes , described by the kerr - newman - de sitter solution . the dependence of the quasinormal spectrum upon the black hole parameters mass @xmath0 , angular momentum @xmath1 , charge @xmath2 , as well ... | 140 |
quant-ph0309005 | a scheme for an atomic beam quantum self - eraser is presented . the proposal is based on time reversal invariance on a quantum optical ramsey fringes experiment , where a realization of complementarity for atomic coherence can be achieved . it consists of two high finesse resonators that are pumped and probed by the s... | 162 |
1109.6741 | the dark energy survey ( des ) is a project with the goal of building , installing and exploiting a new 74 ccd - camera at the blanco telescope , in order to study the nature of cosmic acceleration . it will cover 5000 square degrees of the southern hemisphere sky and will record the positions and shapes of 300 million... | 178 |
nlin0507005 | integrable equations exhibit interesting conformal properties and can be written in terms of the so - called conformal invariants . the most basic and important example is the kdv equation and the corresponding schwarz - kdv equation . other examples , including the camassa - holm equation and the associated camassa - ... | 195 |
1210.4392 | in this contribution i review the present status and discuss some prospects for indirect detection of dark matter with gamma - rays . thanks to the fermi large area telescope , searches in gamma - rays have reached sensitivities that allow to probe the most interesting parameter space of the weakly interacting massive ... | 217 |
0812.0654 | the infrared behaviour of qcd green s functions in landau gauge has been focus of intense study . different non - perturbative approaches lead to a prediction in line with the conditions for confinement in local quantum field theory as spelled out in the kugo - ojima criterion . detailed comparisons with lattice studie... | 216 |
astro-ph9909020 | the prompt optical flash recently detected accompanying grb990123 suggests that , for at least some grbs , @xmath0-ray emission is accompanied by prompt optical - uv emission with luminosity @xmath1 , where @xmath2 is the solid angle into which @xmath0-ray and optical - uv emission is beamed . such an optical - uv flas... | 272 |
1203.3827 | einstein s theory of general relativity is the benchmark example for empirical success and mathematical elegance in theoretical physics . however , in spite of being the most successfully tested theory in physics , there are strong theoretical and observational arguments for why general relativity should fail . it is n... | 228 |
cond-mat0001372 | the effect of crystal lattice disorder on the conductivity and colossal magnetoresistance in la@xmath0ca@xmath1mno@xmath2 ( @xmath3 ) films has been examined . the lattice defects are introduced by irradiating the film with high - energy ( @xmath4 mev ) electrons with a maximal fluence of about @xmath5 @xmath6 . this c... | 158 |
0908.0302 | channel polarization , originally proposed for binary - input channels , is generalized to arbitrary discrete memoryless channels . specifically , it is shown that when the input alphabet size is a prime number , a similar construction to that for the binary case leads to polarization . this method can be extended to c... | 186 |
astro-ph0505526 | we report on the formation and evolution of two large - scale , synchrotron - emitting jets from the black hole candidate h following its reactivation in 2003 . in november 2003 after the end of its 2003 outburst , we noticed , in observations with the australia telescope compact array , the presence of a new and varia... | 228 |
astro-ph0107572 | theoretical research on extragalactic masers ( and hence this review ) is almost entirely directed toward 22 ghz water masers in circumnuclear disks with the focus being the near ideal masing disk at the nucleus of the galaxy ngc4258 . the discussion here is organized around ( 1 ) the excitation and conditions for the ... | 115 |
astro-ph9906124 | the uv upturn phenomenon observed in elliptical galaxies is attractive for its potential value as an age indicator of old stellar systems . we present our most recent population models for the uv evolution of elliptical galaxies . we confirm that the dominant uv sources are either metal - poor or metal - rich hot horiz... | 211 |
astro-ph0004239 | we report the discovery of a bright ( j = 13.83@xmath00.03 ) methane brown dwarf , or t dwarf , by the two micron all sky survey . this object , 2massi j0559191 - 140448 , is the first brown dwarf identified by the newly commissioned cormass instrument mounted on the palomar 60-inch telescope . near - infrared spectra ... | 163 |
cond-mat0303150 | in this study , one of the mean - field theories in nematics , the maier - saupe theory ( mst ) , is generalized within tsallis thermostatistics ( tt ) . the variation of the order parameter versus temperature has been investigated and compared with experimental data for paa ( p - azoxyanisole ) . so far we believe tha... | 153 |
hep-th0109194 | we construct an explicit model to describe fermions confined on a four dimensional brane embedded in a five dimensional anti - de sitter spacetime . we extend previous works to accommodate massive bound states on the brane and exhibit the transverse structure of the fermionic fields . we estimate analytically and calcu... | 114 |
0807.0572 | we explore the many body physics of a bose condensed atom gas at finite temperature through the raman transition between two hyperfine levels . unlike the bragg scattering where the phonon - like nature of the collective excitations has been observed , a different branch of thermal atom excitation is found theoreticall... | 204 |
1211.2368 | in this paper , we study the coxeter transformations of the derived categories of coherent sheaves on smooth complete varieties . we first obtain that if the rank of the grothendieck group is finite , say @xmath0 , then its characteristic polynomials is @xmath1 , where @xmath2 is dimension of the variety . we then stud... | 165 |
astro-ph0309367 | we draw attention to the close relationship between the anisotropy parameter @xmath0 for stellar orbits in elliptical galaxies and the temperature @xmath1 of the hot interstellar gas . for nearly spherical galaxies , the gas density @xmath2 can be accurately determined from x - ray observations and the stellar luminosi... | 209 |
quant-ph0112070 | _ we show , using quantum field theory , that performing a large number of identical repetitions of the same measurement does not only preserve the initial state of the wave function ( the zeno effect ) , but also produces additional physical effects . we first demonstrate that a zeno type effect can emerges also in th... | 159 |
0808.3853 | the power spectrum of local field potentials ( lfps ) has been reported to scale as the inverse of the frequency , but the origin of this `` @xmath0 noise '' is at present unclear . macroscopic measurements in cortical tissue demonstrated that electric conductivity ( as well as permittivity ) is frequency dependent , w... | 200 |
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