article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
|---|---|---|
cond-mat0603709 | we study rotating squeezed quantum states created by a parametric resonance in an open harmonic system . as a specific realization of the phenomenon we study a mesoscopic squid loop where the state preparation procedure is simple in principle and feasible with currently available experimental methods . by solving dynam... | 110 |
physics0308052 | counter - propagating light fields have the ability to create self - organized one - dimensional optically bound arrays of microscopic particles , where the light fields adapt to the particle locations and vice versa . we develop a theoretical model to describe this situation and show good agreement with recent experim... | 105 |
math0512518 | let @xmath0 be a planar graph with no two 3-cycles sharing an edge . we show that if @xmath1 , then @xmath2 and @xmath3 we also show that if @xmath4 , then @xmath5 and if @xmath6 , then @xmath7 . all of these results extend to graphs in the projective plane and when @xmath6 the results also extend to graphs in the toru... | 185 |
nucl-th9807005 | we carry out a study of intermediate - mass ( between 1 and 2.5 gev ) dilepton spectra from hadronic interactions in heavy - ion collisions . the processes considered are @xmath0 , @xmath1 , @xmath2 , @xmath3 , @xmath4 , and @xmath5 . the elementary cross sections for those are obtained from chiral lagrangians involvin... | 159 |
0912.2439 | the dynamical equations of clarinet - like systems are known to be reducible to a non - linear iterated map within reasonable approximations . this leads to time oscillations that are represented by square signals , analogous to the raman regime for string instruments . in this article , we study in more detail the pro... | 191 |
0707.3604 | we present observations of a new low - mass double - lined eclipsing binary system discovered using repeat observations of the celestial equator from the sloan digital sky survey ii . using near - infrared photometry and optical spectroscopy we have measured the properties of this short - period [ @xmath0=0.407037(14 )... | 205 |
1204.3805 | we study the thermodynamic properties of spin chains of haldane shastry type associated with the @xmath0 root system in the presence of a uniform external magnetic field . to this end , we exactly compute the partition function of these models for an arbitrary finite number of spins . we then show that these chains are... | 188 |
hep-ph9605369 | in reconstructing the top quark momentum from its decay products , one must account for extra jets that can result from radiation of gluons . in this paper we study soft gluon radiation in top production and decay at the fermilab tevatron . we consider the cases where one or both @xmath0 bosons decays hadronically , _ ... | 181 |
hep-ph9304234 | we examine the computation of the nucleation barrier used in the expression for false vacuum decay rates in finite temperature field theory . by a detailed analysis of the determinantal prefactor , we show that the correct bounce solution used in the computation of the nucleation barrier should not include loop correct... | 164 |
0812.3818 | in the framework of the theory of open systems based on completely positive quantum dynamical semigroups , we give a description of the continuous - variable entanglement for a system consisting of two independent harmonic oscillators interacting with a general environment . using peres - simon necessary and sufficient... | 185 |
0904.3182 | we study the conductance of mesoscopic graphene rings in the presence of a perpendicular magnetic field by means of numerical calculations based on a tight - binding model . first , we consider the magnetoconductance of such rings and observe the aharonov - bohm effect . we investigate different regimes of the magnetic... | 139 |
0908.1810 | in this paper we present a study of an exciton system where electrons and holes are confined in double quantum well structures . the dominating interaction between excitons in such systems is a dipole - dipole repulsion . we show that the tail of this interaction leads to a strong correlation between excitons and subst... | 170 |
gr-qc9811036 | the status of experimental tests of general relativity and of theoretical frameworks for analysing them are reviewed . einstein s equivalence principle ( eep ) is well supported by experiments such as the etvs experiment , tests of special relativity , and the gravitational redshift experiment . future tests of eep wil... | 140 |
astro-ph0107469 | we observed the `` micro - quasar '' four times with _ chandra_. two hrc - i observations were made in 2000 september - october spanning an intermediate - to - hard spectral transition ( identified with _ rxte _ ) . another hrc - i and an acis / hetgs observation were made in 2001 march following a hard - to - soft tra... | 212 |
hep-lat0409021 | we study the chiral condensates and the @xmath0 meson correlators of the massive schwinger model in @xmath1 vacuum . our data suggest that the pseudoscalar operator does condense in a fixed topological sector and gives long range correlations of the @xmath0 meson . we find that this is well understood from the clusteri... | 127 |
1603.07734 | the hot gaseous halos of galaxies likely contain a large amount of mass and are an integral part of galaxy formation and evolution . the milky way has a @xmath0 k halo that is detected in emission and by absorption in the resonance line against bright background agns , and for which the best current model is an extende... | 208 |
1302.3513 | in this article we derive a strong version of the pontryagin maximum principle for general nonlinear optimal control problems on time scales in finite dimension . the final time can be fixed or not , and in the case of general boundary conditions we derive the corresponding transversality conditions . our proof is base... | 233 |
1703.03761 | the continuous packing of a flexible rod in two - dimensional cavities yields a countable set of interacting domains that resembles non - equilibrium cellular systems and belongs to a new class of light - weight material . however , the link between the length of the rod and the number of domains requires investigation... | 223 |
1210.2304 | dem analysis is a major diagnostic tool for stellar atmospheres . but both its derivation and its interpretation are notably difficult because of random and systematic errors , and the inverse nature of the problem . we use simulations with simple thermal distributions to investigate the inversion properties of sdo / a... | 233 |
1301.5407 | it is anticipated that future space - born missions , such as _ gaia _ , will be able to determine in optical domain positions of more than 100 , 000 bright quasars with sub - mas accuracies that are comparable to very long baseline interferometry ( vlbi ) accuracies . comparisons of coordinate systems from space - bor... | 254 |
hep-th0603172 | we construct @xmath0 supersymmetric fractional branes on the @xmath1 orientifold . intersecting stacks of such branes are needed to build a supersymmetric standard model . if @xmath2 are the stacks that generate the @xmath3 and @xmath4 gauge particles , then , in order to obtain _ just _ the chiral spectrum of the ( su... | 183 |
1404.7708 | it is well - known that entanglement of formation ( eof ) and relative entropy of entanglement ( ree ) are exactly identical for all two - qubit pure states even though their definitions are completely different . we think this fact implies that there is a veiled connection between eof and ree . in this context , we su... | 142 |
1410.3775 | we experimentally address the wave - vector and polarization dependence of the internal conical refraction phenomenon by demonstrating that an input light beam of elliptical transverse profile refracts into two beams after passing along one of the optic axes of a biaxial crystal , _ i.e. _ it exhibits double refraction... | 133 |
0704.3748 | the properties of certain networks are determined by hidden variables that are not explicitly measured . the conditional probability ( propagator ) that a vertex with a given value of the hidden variable is connected to k of other vertices determines all measurable properties . we study hidden variable models and find ... | 185 |
1607.08093 | we study theoretically the responses of the dynamically corrected gates to time - dependent noises in the exchange - only spin qubit system . we consider @xmath0 noises having spectra proportional to @xmath1 , where the exponent @xmath2 indicates the strength of correlation within the noise . the quantum gate errors du... | 200 |
nlin0307038 | statistics of tunneling rates in the presence of chaotic classical dynamics is discussed on a realistic example : a hydrogen atom placed in parallel uniform static electric and magnetic fields , where tunneling is followed by ionization along the fields direction . depending on the magnetic quantum number , one may obs... | 100 |
astro-ph0410533 | about 30.5 days of nearly uninterrupted broadband photometry of the solar - type star @xmath0 ceti , obtained with the most ( microvariability & oscillations of stars ) satellite , shows evidence for two large starspots with different rotation periods of 8.9 and approximately 9.3 days ( @xmath1 ) . ground based measure... | 259 |
1612.04115 | the magnetic field structure associated with edge localised ideal ballooning mode ( elm ) bursts is analysed by nonlinear gyrofluid computation . the linear growth phase is characterised by the formation of small scale magnetic islands . ergodic magnetic field regions develop near the end of the linear phase when the i... | 125 |
1208.0993 | for any link and for any modulus @xmath0 we introduce an equivalence relation on the set of non - trivial @xmath0-colorings of the link ( an @xmath0-coloring has values in @xmath1 ) . given a diagram of the link , the equivalence class of a non - trivial @xmath0-coloring is formed by each assignment of colors to the ar... | 143 |
cond-mat0209683 | we present a comprehensive picture of ( non - critical ) domain growth in model c systems where a non - conserved scalar order parameter is coupled to a conserved concentration field . for quenches into the region where the ordered and disordered phases coexist , we confirm earlier partial numerical results and find a ... | 110 |
1106.2061 | we report on the measurements of inclusive @xmath0+jets and @xmath1+jets cross sections in proton proton collisions at @xmath2 tev with the atlas detector . cross sections , in both the electron and muon decay modes of the bosons , are presented as a function of jet multiplicity , the transverse momentum of the jets an... | 132 |
astro-ph0001158 | we report _ bepposax _ and optical observations of the black hole candidate gx3394 during its x - ray ` off ' state in 1999 . the broad - band ( 0.850 kev ) x - ray emission can be fitted by a single power law with spectral index , @xmath0 . the observed luminosity is @xmath1 erg s@xmath2 in the 0.510 kev band , which ... | 212 |
1402.1329 | we study an isothermal system of semi - degenerate self - gravitating fermions in general relativity . such systems present mass density solutions with a central degenerate core , a plateau and a tail which follows a power law behaviour @xmath0 . the different solutions are governed by the free parameters of the model ... | 234 |
1609.07034 | abstractive summarization is an ideal form of summarization since it can synthesize information from multiple documents to create concise informative summaries . in this work , we aim at developing an abstractive summarizer . first , our proposed approach identifies the most important document in the multi - document s... | 224 |
0811.0595 | we are conducting a large program with the nrao very long baseline array ( vlba ) to measure trigonometric parallaxes of massive star - forming regions across the milky way . here we report measurement of the parallax and proper motion of methanol masers in and . the parallax of is @xmath0 mas ( @xmath1 kpc ) , placing... | 141 |
1410.7902 | this is an exposition of some basic ideas in the realm of global inverse function theorems . we address ourselves mainly to readers who are interested in the applications to differential equations . but we do not deal with those applications and we give a ` self - contained ' elementary exposition . the first part is d... | 184 |
1206.3107 | the einstein time dilation formula was tested in several experiments . many trials have been made to measure the transverse second order doppler shift by mssbauer spectroscopy using a rotating absorber , to test the validity of this formula . such experiments are also able to test if the time dilation depends only on t... | 285 |
1502.03959 | motivated by future collider proposals that aim to measure the higgs properties precisely , we study the partial decay widths of the lightest higgs boson in the minimal supersymmetric standard model with an emphasis on the parameter region where all superparticles and heavy higgs bosons are not accessible at the lhc . ... | 282 |
1104.5402 | in a recent paper published in this journal , zhao and collaborators [ phys . rev . d * 82 * , 084030 ( 2010 ) ] analyze a toy model of thick branes generated by a real scalar field with the potential @xmath0 , and investigate the variation of the mass parameter @xmath1 on the branes as well as the localization and res... | 161 |
1005.2334 | the electromagnetic two - body problem has _ neutral differential delay _ equations of motion that , for generic boundary data , can have solutions with _ discontinuous _ derivatives . if one wants to use these neutral differential delay equations with _ arbitrary _ boundary data , solutions with discontinuous derivati... | 266 |
1405.2389 | a reliable evaluation of the integral giving the hadronic vacuum polarization contribution to the muon anomalous magnetic moment should be possible using a simple trapezoid - rule integration of lattice data for the subtracted electromagnetic current polarization function in the euclidean momentum interval @xmath0 , co... | 225 |
hep-ph9608311 | we propose to study possible signals of just - so oscillations in new - generation solar neutrino experiments by separating the events detected when the earth is nearest to the sun ( perihelion @xmath0 3 months ) from those detected when the earth is farthest from the sun ( aphelion @xmath0 3 months ) . we introduce a ... | 133 |
astro-ph0409445 | baryonic oscillations in the galaxy power spectrum have been studied as a way of probing dark - energy models . while most studies have focused on spectroscopic surveys at high redshift , large multi - color imaging surveys have already been planned for the near future . in view of this , we study the prospects for mea... | 214 |
1501.03101 | the solar system started to form about 4.56 gyr ago and despite the long intervening time span , there still exist several clues about its formation . the three major sources for this information are meteorites , the present solar system structure and the planet - forming systems around young stars . in this introducti... | 221 |
1703.07084 | we demonstrate _ in situ _ fluorescence detection of @xmath0li atoms in a 1d optical lattice with single atom precision . even though illuminated lithium atoms tend to boil out , when the lattice is deep , molasses beams without extra cooling retain the atoms while producing sufficient fluorescent photons for detection... | 166 |
1212.4419 | we present a detailed comparison between far - uv / optical colour magnitude diagrams obtained with high - resolution _ hubble space telescope _ data and suitable theoretical models for three galactic globular clusters : m3 , m13 and m79 . + these systems represents a `` classical '' example of clusters in the intermed... | 239 |
hep-ph0304031 | a variety of strong and electroweak interaction properties of the pion and the light scalar @xmath0 meson are computed in a relativistic quark model . under the assumption that the resulting coupling of these mesons to the constituent quarks is identical , the @xmath0 meson mass is determined as @xmath1 mev . we discus... | 218 |
1107.5163 | long - range contributions to the three - nucleon force that have been recently worked out in chiral effective field theory at next - to - next - to - next - to - leading order are for the first time included in the triton and the doublet nucleon - deuteron scattering length calculations . the strengths of the two shor... | 174 |
1311.7647 | we investigate the contribution of the beamed jet component to the high energy emission in young and compact extragalactic radio sources , focusing for the first time on the @xmath0-ray band . we derive predictions on the @xmath0-ray luminosities associated with the relativistic jet assuming a leptonic radiative model ... | 261 |
0905.4782 | we explore the connection between black hole spin and agn power by addressing the consequences underlying the assumption in the recent literature that the gap region between accretion disks and black holes is fundamental in producing strong , spin - dependent , horizon - threading magnetic fields . under the additional... | 100 |
1401.5786 | we study the interaction of graphene with ultrashort few femtosecond long optical pulse . for such a short pulse , the electron dynamics is coherent and is described within the tight - binding model of graphene . the interaction of optical pulse with graphene is determined by strong wave vector dependence of the interb... | 215 |
astro-ph9810329 | it has been argued that the solar magnetic cycle consists of two main periodic components : a low - frequency component ( hale s 22-year cycle ) and a high - frequency component ( quasi - biennial cycle ) . the existence of the double magnetic cycle on the sun is confirmed using stanford , mount wilson and kitt peak ma... | 194 |
1505.00068 | for an understanding of a heat engine working in the microscopic scale , it is often necessary to estimate the amount of reversible work extracted by isothermal expansion of the quantum gas used as its working substance . we consider an engine with a movable wall , modeled as an infinite square well with a delta peak i... | 100 |
1601.07692 | we analyze the directed flow of protons and pions in high - energy heavy - ion collisions in the incident energy range from @xmath0 to 27 gev within a microscopic transport model . standard hadronic transport approaches do not describe the collapse of directed flow below @xmath1 gev . by contrast , a model that simulat... | 143 |
hep-ph0508163 | we set up a new calculational framework for the yang - mills vacuum transition amplitude in the schrdinger representation . after integrating out hard - mode contributions perturbatively , we perform a gauge invariant gradient expansion of the ensuing soft mode action which renders a subsequent saddle point expansion f... | 233 |
cond-mat0404523 | temperature dependencies of microwave surface impedance , @xmath0 , were measured for perfect _ c_-oriented ybco thin films deposited on ceo@xmath1buffered sapphire substrates . the measurements were performed with a use of three copper cylindrical resonators operating at @xmath2 mode ( @xmath3 = 34 , 65 , 134 ghz ) , ... | 265 |
1505.05313 | this note studies classical magnetohydrodynamic shock waves in an inviscid fluidic plasma that is assumed to be a perfect conductor of heat as well as of electricity . for this mathematically prototypical material , it identifies a critical manifold in parameter space , across which slow classical mhd shock waves under... | 120 |
1606.01373 | ngc 6946 , known as the fireworks galaxy because of its high supernova rate and high star formation , is embedded in a very extended hi halo . its northern spiral arm is well detached from the galactic main body . we found that this arm contains a large ( @xmath0 pc in size ) red ellipse , . the ellipse is accompanied ... | 228 |
1405.1321 | we consider a power law @xmath0 correction to einstein gravity as a model for inflation . the interesting feature of this form of generalization is that small deviations from the starobinsky limit @xmath1 can change the value of tensor to scalar ratio from @xmath2 to @xmath3 . we find that in order to get large tensor ... | 172 |
0901.3382 | we report the discovery of a high proper motion l subdwarf ( @xmath0 yr@xmath1 ) in the sloan digital sky survey spectral database . the optical spectrum from the star sdss j125637 - 022452 has mixed spectral features of both late - m spectral subtype ( strong tio and cah at 7000 ) and mid - l spectral subtype ( strong... | 181 |
1103.4859 | we present photometry of 4 transits of the exoplanet wasp-4b , each with a precision of approximately 500 ppm and a time sampling of 40 - 60 s. we have used the data to refine the estimates of the system parameters and ephemerides . during two of the transits we observed a short - lived , low - amplitude anomaly that w... | 216 |
1404.5056 | we introduce a system with one or two amplified nonlinear sites ( hot spots " , hss ) embedded into a two - dimensional linear lossy lattice . the system describes an array of evanescently coupled optical or plasmonic waveguides , with gain applied to selected hs cores . the subject of the analysis is discrete solitons... | 197 |
0710.3856 | we calculate the perturbative value of the free energy in lattice qcd , up to three loops . our calculation is performed using wilson gluons and the sheikholeslami - wolhert ( clover ) improved action for fermions . the free energy is directly related to the average plaquette . to carry out the calculation , we compute... | 167 |
0812.2280 | let @xmath0 be the automorphism group of a regular right - angled building @xmath1 . the standard uniform lattice " @xmath2 is a canonical graph product of finite groups , which acts discretely on @xmath1 with quotient a chamber . we prove that the commensurator of @xmath3 is dense in @xmath0 . for this , we develop a ... | 128 |
1102.0319 | we examine the influence of microwave photoexcitation on the amplitude of shubnikov - de haas ( sdh ) oscillations in a two dimensional gaas / algaas electron system in a regime where the cyclotron frequency , @xmath0 , and the microwave angular frequency , @xmath1 , satisfy @xmath2 . a sdh lineshape analysis indicates... | 107 |
cond-mat0303610 | this paper reports on peculiar metamagnetic transitions which take place in antiferromagnetic , charge and orbitally ordered ( afcoo ) manganites . at very low temperatures , the virgin magnetization curves of some of these compounds exhibit several , sharp steps giving rise to a staircase - like shape . this staircase... | 112 |
hep-ph0207209 | we review the way intense neutrino beams at the front end of a muon storage ring can be used to probe the structure of hadrons . specifically , we discuss how the polarized and unpolarized flavor structure of the nucleon can be disentangled in inclusive deep - inelastic scattering , and how less inclusive measurements ... | 219 |
1105.5188 | initial states of glasma in high energy heavy ion collisions are longitudinal classical color electric and magnetic fields . assuming finite color electric conductivity , we show that the color electric field decays by quark pair production with the life time of the order of @xmath0 , i.e. the inverse of the saturation... | 148 |
1101.1917 | we examine the wavelength dependence of flux ratios for six gravitationally lensed quasars using @xmath0 and @xmath1 images obtained at the gemini north 8 m telescope . we select lenses with source redshifts @xmath2 so that @xmath0-band images probe rest - frame optical emission from accretion disks , while @xmath1-ban... | 213 |
nucl-ex9901006 | _ inclusive as well as exclusive energy spectra of the light charged particles emitted in the @xmath0si(e@xmath1 mev ) + @xmath0si,@xmath2c reactions have been measured at the strasbourg vivitron facility in a wide angular range 15@xmath3 - 150@xmath3 , using the icare multidetector array . the observed @xmath4-particl... | 100 |
quant-ph0206158 | in this paper we analyze the dynamics in a spin - model of quantum computer . main attention is paid to the dynamical fidelity ( associated with dynamical errors ) of an algorithm that allows to create an entangled state for remote qubits . we show that in the regime of selective resonant excitations of qubits there is... | 131 |
astro-ph0204427 | we report here on the observation of kes27 , a proto - typical mixed - morphology snr , using asca . it clearly shows a filled - center structure in the x - ray region while a shell structure in the radio region . there are two radio bright regions : one is in the center , while the other is in the east rim . the x - r... | 203 |
1007.5457 | we investigate antiferromagnetic order of repulsively interacting fermionic atoms in an optical lattice by means of dynamical mean - field theory ( dmft ) . special attention is paid to the case of an imbalanced mixture . we take into account the presence of an underlying harmonic trap , both in a local density approxi... | 169 |
cond-mat0607031 | we theoretically investigate the response of a superconducting film to line currents flowing in linear wires placed above the film , and we present analytic expressions for the magnetic - field and current distributions based on the critical state model . the behavior of the superconducting film is characterized by the... | 156 |
nucl-ex9907018 | at the karlsruhe and tbingen 3.75mv van de graaff accelerators the thermonuclear @xmath0ti(n,@xmath1)@xmath2ti(5.8min ) cross section was measured by the fast cyclic activation technique via the 320.852 and 928.65kev @xmath1-ray lines of the @xmath2ti - decay . metallic ti samples of natural isotopic composition and sa... | 226 |
cond-mat0703619 | graphite is an example of a layered material that can be bent to form fullerenes which promise important applications in electronic nanodevices . the spheroidal geometry of a slightly elliptically deformed sphere was used as a possible approach to fullerenes . we assumed that for a small deformation the eccentricity of... | 152 |
0908.3058 | spin-1/2 ising - heisenberg model with @xmath0 heisenberg pair interaction and two different ising quartic interactions is exactly solved with the help of the generalized star - square transformation , which establishes a precise mapping equivalence with the corresponding eight - vertex model on a square lattice genera... | 219 |
cond-mat0105380 | we propose to combine the nonlinear scaling fields associated with the high - temperature ( ht ) fixed point , with those associated with the unstable fixed point , in order to calculate the susceptibility and other thermodynamic quantities . the general strategy relies on simple linear relations between the ht scaling... | 200 |
1105.5719 | the deployment of deepcore array significantly lowers icecube s energy threshold to about @xmath0 gev and enhances the sensitivity of detecting neutrinos from annihilations and decays of light dark matter . to match this experimental development , we calculate the track event rate in deepcore array due to neutrino flux... | 202 |
cond-mat0511528 | the phase diagram of the two - leg t-@xmath0 ladder is explored , using the density matrix renormalization group method . results are obtained for energy gaps , electron density profiles and correlation functions for the half - filled and quarter - filled cases . the effective lagrangian velocity parameter @xmath1 is s... | 152 |
1410.1222 | coal@xmath0o@xmath1 spinel with magnetic co@xmath2 ions on the diamond a - lattice is known to be magnetically frustrated . we compare neutron single crystal diffraction patterns measured in zero and applied magnetic fields with the ones obtained from classical monte - carlo models . in simulations we test the influenc... | 155 |
astro-ph0504474 | the irs 13e complex is an unusual concentration of massive , early - type stars at a projected distance of @xmath00.13pc from the milky way s central supermassive black hole sagittarius a * ( sgr a * ) . because of their similar proper motion and their common nature as massive , young stars it has recently been suggest... | 196 |
astro-ph0611488 | active prominences exhibit plasma motions , resulting in difficulties with the interpretation of spectroscopic observations . these solar features being strongly influenced by the radiation coming from the solar disk , doppler dimming or brightening effects may arise , depending on which lines are observed and on the v... | 237 |
0908.1887 | the expression for the spin susceptibility @xmath0 of degenerate quark matter is derived with corrections upto @xmath1 . it is shown that at low density , @xmath2 changes sign and turns negative indicating a ferromagnetic phase transition . to this order , we also calculate sound velocity @xmath3 and incompressibility ... | 100 |
1107.2436 | we show that simple 2 and 3-layer flux - transport dynamos , when forced at the top by a poloidal source term , can produce a widely varying amplitude of toroidal field at the bottom , depending on how close the meridional flow speed of the bottom layer is to the propagation speed of the forcing applied above the top l... | 184 |
1408.1919 | weak value amplification ( wva ) is a concept that has been extensively used in a myriad of applications with the aim of rendering measurable tiny changes of a variable of interest . in spite of this , there is still an on - going debate about its _ true _ nature and whether is really needed for achieving high sensitiv... | 167 |
0705.1353 | we have produced a catalog of line identifications and equivalent width measurements for all absorption features in eight ultraviolet echelle quasar spectra . these spectra were selected as having the highest signal - to - noise among the _ hst_/stis spectra obtained with the e230 m grating . we identify 56 metal - lin... | 183 |
cond-mat0110101 | based on the assumption of a safe velocity @xmath0 depending on the vehicle density @xmath1 a macroscopic model for traffic flow is presented that extends the model of the khne - kerner - konhuser by an interaction term containing the second derivative of @xmath2 . we explore two qualitatively different forms of @xmath... | 251 |
1201.2247 | this paper corrects an earlier work suggesting that the quantum expectation value of the proper length is bounded from below by the planck length . the original calculation examined fluctuations of the conformal factor of einstein - hilbert gravity . however , in einstein - hilbert gravity , the conformal factor is not... | 105 |
1610.01075 | when massless excitations are limited or modified by the presence of material bodies one observes a force acting between them generally called casimir force . such excitations are present in any fluid system close to its true bulk critical point . we derive exact analytical results for both the temperature and external... | 185 |
1501.04117 | coherent control of a system involves steering an interaction to a final coherent state by controlling the phase of an applied field . plasmas support coherent wave structures that can be generated by intense laser fields . here , we demonstrate the coherent control of plasma dynamics in a laser wakefield electron acce... | 196 |
astro-ph0001087 | we have measured an extensive set of @xmath0 colors for m31 globular clusters @xcite . we compare the predicted simple stellar population colors of three population synthesis models to the intrinsic colors of galactic and m31 globular clusters . the best - fitting models fit the cluster colors very well the weighted me... | 162 |
0705.3514 | hypervelocity stars ( hvss ) ejected by the massive black hole at the galactic center have unique kinematic properties compared to other halo stars . their trajectories will deviate from being exactly radial because of the asymmetry of the milky way potential produced by the flattened disk and the triaxial dark matter ... | 198 |
astro-ph0510097 | we have measured the weak lensing signal as a function of restframe @xmath0 , @xmath1 , and @xmath2-band luminosity for a sample of ` isolated ' galaxies . these results are based on four - band photometry from the red - sequence cluster survey , enabling us to determine photometric redshifts for a large number of gala... | 271 |
astro-ph0208284 | _ hubble space telescope _ wide field planetary camera 2 images of hickson compact group 79 , seyfert s sextet , are presented . both point sources and extended sources detected on the three wf chips were photometered in four filters : f336w , f439w , f555w , and f814w . unlike other hcgs that have been imaged with _ h... | 284 |
1509.07015 | in this paper , we consider polynomials orthogonal with respect to a varying perturbed laguerre weight @xmath0 for @xmath1 and @xmath2 on certain contours in the complex plane . when the parameters @xmath3 , @xmath4 and the degree @xmath5 are fixed , the hankel determinant for the singular complex weight is shown to be... | 181 |
cond-mat0501279 | correlation effects on the electronic structure of half - metallic cras in zinc - blende structure are studied for different substrate lattice constants . depending on the substrate the spectral weight of the non - quasiparticle states might be tuned from a well developed value in the case of inas substrate to an almos... | 112 |
1302.7245 | recently , the extremely sensitive torsion - rotation transitions in methanol have been used to set a tight constraint on a possible variation of the proton - to - electron mass ratio over cosmological time scales . in order to improve this constraint , laboratory data of increased accuracy will be required . here , we... | 154 |
1410.8643 | it is widely believed that anisotropy in the expansion of the universe will decay exponentially fast during inflation . this is often referred to as the cosmic no - hair conjecture . however , we find a counter example to the cosmic no - hair conjecture in the context of supergravity . as a demonstration , we present a... | 100 |
hep-th9712089 | low - energy dynamics in the unit - charge sector of the @xmath0 model on spherical space ( space - time @xmath1 ) is treated in the approximation of geodesic motion on the moduli space of static solutions , a six - dimensional manifold with non - trivial topology and metric . the structure of the induced metric is res... | 123 |
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