id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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cond-mat/9506096 | A Model for High Temperature Superconductors using the Extended Hubbard
Model | We derive a method to study the phase diagram for high temperature
superconductors (HTCS). Our starting point is the Hubbard Hamiltonian with a
weak attractive interaction to obtain the formation of bound pairs. We consider
this attractive potential at different positions for different compounds
accordingly to the expe... | 1995-06-21 | 2009-10-28 | [
"cond-mat"
] | Evandro V.L.de Mello |
cond-mat/9506095 | On a Network Model of Localization in a Random Magnetic Field | We consider a network model of snake states to study the localization problem
of non-interacting fermions in a random magnetic field with zero average. After
averaging over the randomness, the network of snake states is mapped onto $M$
coupled SU$(2N)$ spin chains in the $N \rightarrow 0$ limit. The number of
snake sta... | 1995-06-21 | 2009-10-28 | [
"cond-mat"
] | Yong Baek Kim, Akira Furusaki, Derek K. K. Lee |
cond-mat/9506094 | Spin-Charge Separated Luttinger Liquid in Arbitrary Spatial Dimensions | A model with a singular forward scattering amplitude for particles with
opposite spins in d spatial dimensions is proposed and solved by using the
bosonization transformation. This interacting potential leads to the
spin-charge separation. Thermal properties at low temperature for this
Luttinger liquid are discussed. A... | 1995-06-21 | 2009-10-28 | [
"cond-mat",
"supr-con"
] | Krzysztof Byczuk and Jozef Spalek |
cond-mat/9506090 | Diagrammatic evaluation of conformal weights in the U_q[SU(2)] symmetric
Heisenberg chain | We consider the $U_q[SU(2)]$ symmetric Heisenberg chain when
$q=e^{i\pi/(m+1)}$ and $m$ is integer. We consider the cases $m=3$ and $m=5$
which correspond to the Ising and 3-state Potts models. We study the finite
size scaling (FSS) of the ground states in different quantum spin sectors and
restricting to highest weigh... | 1995-06-20 | 2007-05-23 | [
"cond-mat",
"hep-lat"
] | Matteo Beccaria |
cond-mat/9506087 | Universal Finite-Size Scaling Function of the Ferromagnetic Heisenberg
Chain in a Magnetic Field. II | The finite-size scaling function of the nonlinear susceptibility of the
ferromagnetic Heisenberg chain is given explicitly. It is conjectured that the
scaling function is universal for any values of $S$. The conjecture is based on
the exact solution of the nonlinear susceptibility for $S=\infty$, and
numerical calculat... | 1995-06-20 | 2009-10-28 | [
"cond-mat"
] | Hiroaki Nakamura, Naomichi Hatano and Minoru Takahashi (Institute for
Solid State Physics, University of Tokyo, Department of Physics, University
of Tokyo and Department of Physics, Harvard University) |
cond-mat/9506091 | Scaling properties of driven interfaces in disordered media | We perform a systematic study of several models that have been proposed for
the purpose of understanding the motion of driven interfaces in disordered
media. We identify two distinct universality classes: (i) One of these,
referred to as directed percolation depinning (DPD), can be described by a
Langevin equation simi... | 1995-06-20 | 2009-10-28 | [
"cond-mat"
] | L.A.N. Amaral, A.-L. Barabasi, H.A. Makse, and H.E. Stanley (Center
for Polymer Studies and Dept. of Physics, Boston University) |
cond-mat/9506088 | On the Bilayer Coupling in the Yttrium-Barium Family of High Temperature
Superconductors | We present and solve a model for the susceptibility of two CuO2 planes
coupled by an interplane coupling J_perp and use the results to analyze a
recent "cross-relaxation" NMR experiment on Y2Ba4Cu7O15. We deduce that in this
material the product of J_perp and the maximum value of the in-plane
susceptibility chi_max var... | 1995-06-20 | 2007-05-23 | [
"cond-mat"
] | A. J. Millis (AT&T Bell Laboratories) and H. Monien (ETH Zuerich) |
cond-mat/9506081 | Zero-bias anomalies and boson-assisted tunneling through quantum dots | We study resonant tunneling through a quantum dot with one degenerate level
in the presence of a strong Coulomb repulsion and a bosonic environment. Using
a real-time approach we calculate the spectral density and the nonlinear
current within a conserving approximation. The spectral density shows a
multiplet of Kondo p... | 1995-06-19 | 2009-10-28 | [
"cond-mat"
] | J\"urgen K\"onig, Herbert Schoeller and Gerd Sch\"on |
cond-mat/9506080 | The H-Boltzmann's Theorem for Magnetic Systems | In a time-reversal non-invariant system the entropy production, dS/dt, may be
negative. Close to the critical point of medium it is positive: larger or
smaller as compared with one above critical point depending on whether the
transitions from lower states to higher states of the system are more (less)
probable than th... | 1995-06-19 | 2007-05-23 | [
"cond-mat"
] | S. Malinowski |
cond-mat/9506085 | Quantum Breathing Mode for Electrons with 1/r^2 Interaction | We discuss a collective "breathing" mode of electrons with inverse-square-law
interactions in a two-dimensional quantum dot and a perpendicular magnetic
field. | 1995-06-19 | 2009-10-28 | [
"cond-mat"
] | Michael R. Geller and Giovanni Vignale |
cond-mat/9506082 | Two phase transitions in the fully frustrated $XY$ model | The fully frustrated $XY$ model on a square lattice is studied by means of
Monte Carlo simulations. A Kosterlitz-Thouless transition is found at $T_{\rm
KT} \approx 0.446$, followed by an ordinary Ising transition at a slightly
higher temperature, $T_c \approx 0.452$. The non-Ising exponents reported by
others, are exp... | 1995-06-19 | 2009-10-28 | [
"cond-mat"
] | Peter Olsson |
cond-mat/9506089 | Revisiting Thouless conductance formula | It was shown using perturbation theory[1] that Thouless energy Ec for a
quantum system scales linearly with the conductance of the system. We derive in
an alternate way in 1-D that Ec scales with the conductance in a very different
way. We physically show the difference between our approach and that of ref. 1
to expect... | 1995-06-19 | 2008-02-03 | [
"cond-mat"
] | P. Singha Deo |
cond-mat/9506084 | Collapse of Spin-Splitting in the Quantum Hall Effect | It is known experimentally that at not very large filling factors $\nu$ the
quantum Hall conductivity peaks corresponding to the same Landau level number
$N$ and two different spin orientations are well separated. These peaks occur
at half-integer filling factors $\nu = 2 N + 1/2$ and $\nu = 2 N + 3/2$ so that
the dist... | 1995-06-19 | 2009-10-28 | [
"cond-mat"
] | M.M.Fogler and B.I.Shklovskii (University of Minnesota) |
cond-mat/9506077 | A note on inverse-square exchange models | The su(1$|$1) symmetric version of the Haldane-Shastry spin chain is
diagonalized by means of a linear transformation. The same transformation
applied to the original su(2) model yields simple expressions for the
Hamiltonian and the generators of the Yangian symmetry of the model in terms of
spin wave operators. | 1995-06-19 | 2016-08-15 | [
"cond-mat",
"hep-th"
] | Frank G\"ohmann and Miki Wadati |
cond-mat/9506083 | Influence of next-nearest-neighbor electron hopping on the static and
dynamical properties of the 2D Hubbard model | Comparing experimental data for high temperature cuprate superconductors with
numerical results for electronic models, it is becoming apparent that a hopping
along the plaquette diagonals has to be included to obtain a quantitative
agreement. According to recent estimations the value of the diagonal hopping
$t'$ appear... | 1995-06-19 | 2009-10-28 | [
"cond-mat"
] | Daniel Duffy and Adriana Moreo (Florida State University) |
cond-mat/9506078 | Variational Monte Carlo Studies of t-J-type Models | We give a brief review of recent developments by the variational Monte Carlo
method, in addition to some new results. We discuss $t$-$J$-type models: the
ordinary $t$-$J$ model in one and two dimensions, and the one-dimensional
supersymmetric $t$-$J$ model with the long-range coupling of inverse square. | 1995-06-19 | 2007-05-23 | [
"cond-mat"
] | Hisatoshi Yokoyama, Yoshio Kuramoto and Masao Ogata |
cond-mat/9506086 | Adaptive coordinate, real-space electronic structure calculations on
parallel computers | We present a method for electronic structure calculations that retains all of
the advantages of real space and addresses the inherent inefficiency of a
regular grid, which has equal precision everywhere. The computations are
carried out on a {\em regular} mesh in {\em curvilinear space}, which allows
natural and effici... | 1995-06-19 | 2009-10-28 | [
"cond-mat",
"mtrl-th"
] | Gil Zumbach, N. A. Modine and Efthimios Kaxiras (Department of
Physics, Harvard University) |
cond-mat/9506079 | Wave functions for arbitrarily Polarized Quantum Hall States | We determine the wave functions for arbitrarily polarized quantum Hall states
by employing the doublet model which has been proposed recently to describe
arbitrarily polarized quantum Hall states. Our findings recover the well known
fully polarized Laughlin wave functions and unpolarized Halperin wave function
for the ... | 1995-06-18 | 2008-02-03 | [
"cond-mat"
] | Sudhansu S. Mandal and V. Ravishankar |
cond-mat/9506075 | Cluster Algorithms For Anisotropic Quantum Spin Models | We present cluster Monte Carlo algorithms for the $XYZ$ quantum spin models.
In the special case of $S=1/2$, the new algorithm can be viewed as a cluster
algorithm for the 8-vertex model. As an example, we study the $S=1/2$ $XY$
model in two dimensions with a representation in which the quantization axis
lies in the ea... | 1995-06-18 | 2009-10-28 | [
"cond-mat"
] | N. Kawashima |
cond-mat/9506076 | Magnetic anisotropies and general on--site Coulomb interactions in the
cuprates | This paper derives the anisotropic superexchange interactions from a Hubbard
model for excitations within the copper 3d band and the oxygen 2p band of the
undoped insulating cuprates. We extend the recent calculation of Yildirim et
al. [Phys. Rev. B {\bf VV}, pp, 1995] in order to include the most general
on--site Coul... | 1995-06-18 | 2009-10-28 | [
"cond-mat"
] | O. Entin-Wohlman, A. B. Harris, and Amnon Aharony |
cond-mat/9506073 | Broken ergodicity and glassy behavior in a deterministic chaotic map | A network of $N$ elements is studied in terms of a deterministic globally
coupled map which can be chaotic. There exists a range of values for the
parameters of the map where the number of different macroscopic configurations
is very large, and there is violation of selfaveraging. The time averages of
functions, which ... | 1995-06-16 | 2009-10-28 | [
"cond-mat"
] | A. Crisanti, M. Falcioni, A. Vulpiani |
cond-mat/9506072 | Critical level spacing distribution of two-dimensional disordered
systems with spin-orbit coupling | The energy level statistics of 2D electrons with spin-orbit scattering are
considered near the disorder induced metal-insulator transition. Using the Ando
model, the nearest-level-spacing distribution is calculated numerically at the
critical point. It is shown that the critical spacing distribution is size
independent... | 1995-06-16 | 2009-10-28 | [
"cond-mat"
] | L. Schweitzer and I. Kh. Zharekeshev |
cond-mat/9506074 | The Upper Critical Field for Unconventional Superconducting Film: a Kink
due to the Boundary Conditions | Boundary conditions for unconventional superconducting order parameter are
obtained on the basis of a microscopic theory. The upper critical field in a
superconducting film is examined for unconventional superconductors with
two-component order parameter and is compared with the case of accidental
degeneracy. It is sho... | 1995-06-16 | 2009-10-28 | [
"cond-mat"
] | Yu.S.Barash, A.V.Galaktionov, and A.A.Svidzinsky |
cond-mat/9506068 | Finite Temperature Resonant Magnetotunneling in AlGaAs-GaAs-AlGaAs
Heterostructures | We have analyzed the effect of electron-LO phonon interaction in a
double-barrier resonant tunneling structure under a magnetic field {\bf B}
applied parallel to the tunneling current. While the low temperature
anti-crossing phenomenon has already been investigated, here we study the
phonon absorption resonant magnetot... | 1995-06-15 | 2007-05-23 | [
"cond-mat"
] | Oe. Lund Boe, Yu. Galperin, and K.A. Chao |
cond-mat/9506066 | Topological orders and Edge excitations in FQH states | Fractional quantum Hall (FQH) liquids contain extremely rich internal
structures which represent a whole new kind of ordering. We discuss
characterization and classification of the new orders (which is called
topological orders). We also discuss the edge excitations in FQH liquids, which
form the so-called chiral Lutti... | 1995-06-15 | 2009-10-28 | [
"cond-mat"
] | Xiao-Gang Wen (MIT) |
cond-mat/9506065 | Theory of Underdoped Cuprates | We develop a slave-boson theory for the t-J model at finite doping which
respects an SU(2) symmetry -- a symmetry previously known to be important at
half filling. The mean field phase diagram is found to be consistent with the
phases observed in the cuprate superconductors, which contains d-wave
superconductor, spin g... | 1995-06-15 | 2009-10-28 | [
"cond-mat"
] | Xiao-Gang Wen, and Patrick A. Lee |
cond-mat/9506060 | Renormalization Group transformations of the decimation type in more
than one dimension | We develop a formalism for performing real space renormalization group
transformations of the "decimation type" using low temperature perturbation
theory. This type of transformations beyond $d=1$ is highly nontrivial even for
free theories. We construct such a solution in arbitrary dimensions and develop
a weak coupli... | 1995-06-15 | 2016-08-31 | [
"cond-mat",
"hep-lat"
] | V. Kushnir and B. Rosenstein |
cond-mat/9506069 | Multifractal properties of critical eigenstates in two-dimensional
systems with symplectic symmetry | The multifractal properties of electronic eigenstates at the metal-insulator
transition of a two-dimensional disordered tight-binding model with spin-orbit
interaction are investigated numerically. The correlation dimensions of the
spectral measure $\widetilde{D}_{2}$ and of the fractal eigenstate $D_{2}$ are
calculate... | 1995-06-15 | 2009-10-28 | [
"cond-mat"
] | Ludwig Schweitzer |
cond-mat/9506070 | Marshall sign and the doped $t-J$ model | Marshall sign as a sole source of sign problem hidden in an antiferromagnet
is explored under doping. By tracking the Marshall sign, a zero spectral weight
$Z$ is revealed in the doped antiferromagnetic system. $Z=0$ is caused by a
phase string induced by the ``bare'' hole. By eliminating such a phase string
through no... | 1995-06-15 | 2007-05-23 | [
"cond-mat"
] | Z.Y. Weng, D.N. Sheng, and Y.C. Chen |
cond-mat/9506067 | Adsorption of colloidal particles in the presence of external field | We present a new class of sequential adsorption models in which the adsorbing
particles reach the surface following an inclined direction (shadow models).
Capillary electrophoresis, adsorption in the presence of a shear or on an
inclined substrate are physical manifestations of these models. Numerical
simulations are c... | 1995-06-15 | 2009-10-28 | [
"cond-mat"
] | I. Pagonabarraga, J. Bafaluy and J. M. Rubi |
cond-mat/9506061 | Nontopological thermal solitons in isotropic ferromagnetic lattices | The paper deals with the properties of thermally excited solitons of the
isotropic spin-$S$ ferromagnetic chain with nearest-neighbor logarithmic
interactions. The exact statistical mechanics of the interacting soliton gas is
developed for the general case (arbitrary $S$, temperature and magnetic field).
At low tempera... | 1995-06-14 | 2007-06-19 | [
"cond-mat"
] | N. Theodorakopoulos (Theor. and Phys. Chem. Inst., Nat'l Hell. Res.
Found., Athens, Greece) |
cond-mat/9506058 | Atomic beam correlations and the quantum state of the micromaser | Correlation measurements on the states of two-level atoms having passed
through a micromaser at different times can be used to infer properties of the
quantum state of the radiation field in the cavity. Long(short) correlation
length in time is to some extent associated with super(sub)-Poissonian photon
statistics. The... | 1995-06-14 | 2008-02-03 | [
"cond-mat"
] | Per Elmfors, Benny Lautrup and Bo-Sture Skagerstam |
cond-mat/9506062 | Vortex Pair Production and Decay of a 2-D Supercurrent by a Quantum
Field Theory Approach | We investigate the phenomenon of the decay of a supercurrent through
homogeneous nucleation of vortex-antivortex pairs in a 2-D like superconductor
or superfluid by means of a quantum electrodynamics formulation for the decay
of the 2-D vacuum. The case in which both externally-driven current and Magnus
force are prese... | 1995-06-14 | 2009-10-28 | [
"cond-mat"
] | Roberto Iengo and Giancarlo Jug (SISSA and Universita' di Milano) |
cond-mat/9506063 | Spectral Correlations from the Metal to the Mobility Edge | We have studied numerically the spectral correlations in a metallic phase and
at the metal-insulator transition. We have calculated directly the two-point
correlation function of the density of states $R(s,s')$. In the metallic phase,
it is well described by the Random Matrix Theory (RMT). For the first time, we
also f... | 1995-06-14 | 2009-10-28 | [
"cond-mat"
] | D. Braun and G. Montambaux |
cond-mat/9506059 | Supercurrent States in 1D Finite-Size Rings | We consider topological supercurrent excitations (SC) in 1D mesoscopic rings.
Under certain conditions such excitations are well-defined except for (i) a
tunneling between resonating states with clockwise and anti-clockwise currents,
which may be characterized by the amplitude $\Delta$, and (ii) a decay of SC
assisted ... | 1995-06-14 | 2016-08-31 | [
"cond-mat"
] | V.A.Kashurnikov, A.I.Podlivaev, N.V.Prokof'ev, B.V.Svistunov |
cond-mat/9506064 | Odd Parity and Line Nodes in Heavy Fermion Superconductors | Group theory arguments have demonstrated that a general odd parity order
parameter cannot have line nodes in the presence of spin-orbit coupling. In
this paper, it is shown that these arguments do not hold on the $k_z = \pi/c$
zone face of a hexagonal close packed lattice. In particular, three of the six
odd parity rep... | 1995-06-14 | 2009-10-28 | [
"cond-mat",
"supr-con"
] | M. R. Norman |
cond-mat/9506053 | Persistent Currents for Interacting Electrons: a Simple Hartree-Fock
Picture | The average persistent current <I> of diffusive electrons in the Hartree-Fock
approximation is derived in a simple non-diagrammatic picture. The Fourier
expansion directly reflects the winding number decomposition of the diffusive
motion around the ring. One recovers the results of Ambegaokar and Eckern, and
Schmid. Mo... | 1995-06-13 | 2009-10-28 | [
"cond-mat"
] | Gilles Montambaux |
cond-mat/9506054 | A mean-field hard-spheres model of glass | We present a model of spheres moving in a high-dimensional compact space. We
relate it to a mixed matrix model with a $O(N)$ invariant model plus a $P(N)$
invariant perturbation. We then study the low pressure regime by performing a
diagrammatic expansion of this matrix model. Finally, we show the results from
numerica... | 1995-06-13 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | Leticia F. Cugliandolo, J. Kurchan, Remi Monasson and Giorgio Parisi |
cond-mat/9506055 | Dynamical Properties of Quantum Hall Edge States | We consider the dynamical properties of simple edge states in integer ($\nu =
1$) and fractional ($ \nu = 1/2m+1$) quantum Hall (QH) liquids. The influence
of a time-dependent local perturbation on the ground state is investigated. It
is shown that the orthogonality catastrophe occurs for the initial and final
state ov... | 1995-06-13 | 2009-10-28 | [
"cond-mat"
] | A.V.Balatsky(Los Alamos and Landau Institute) and S.I.Matveenko(Landau
Institute and Los Alamos) |
cond-mat/9506056 | Slow cooling dynamics of the Ising $p$-spin interaction spin-glass model | We have studied dynamical behaviour of the infinite-range Ising spin glass
model with $p$-spin interaction above and below the transition into the
non-ergodic phase. The transition is continuous at sufficiently high external
magnetic field. The dynamic critical exponent of the power-law decay of the
autocorrelation fun... | 1995-06-13 | 2007-05-23 | [
"cond-mat"
] | D. M. Kagan, M. V. Feigelman |
cond-mat/9506057 | Exact effective action for fermions in one dimension with backscattering
at a boundary | We report exact results for the partition function for free Dirac fermions on
a half line with physically sensible boundary conditions. An exact effective
action for general backscattering amplitudes is derived. The action also
includes the effects of both a (time-dependent) forward scattering amplitude
and a dynamical... | 1995-06-13 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | Manuel Fuentes, Ana Lopez and Eduardo Fradkin |
cond-mat/9506049 | On the number of metastable states in spin glasses | In this letter, we show that the formulae of Bray and Moore for the average
logarithm of the number of metastable states in spin glasses can be obtained by
calculating the partition function with $m$ coupled replicas with the symmetry
among these explicitly broken according to a generalization of the `two-group'
ansatz... | 1995-06-12 | 2009-10-28 | [
"cond-mat"
] | Giorgio Parisi and Marc Potters |
cond-mat/9506051 | Fermi Liquid - Non-Fermi Liquid Transition in the Double Exchange Model | Motivated by recent discovery of colossal magnetoresistance in
La$_(1-x)$Ca$x$MnO$_3$ and other manganites, we have studied the double
exchange model. We argue that the forced alignment of conduction-electron spin
with the core spins that causes ferromagnetism also projects out a large part
of the Hilbert space needed ... | 1995-06-12 | 2007-05-23 | [
"cond-mat"
] | Sanjoy K. Sarker |
cond-mat/9506052 | Scaling Theory of Antiferromagnetic Heisenberg Ladder Models | The $S=1/2$ antiferromagnetic Heisenberg model on multi-leg ladders is
investigated. Criticality of the ground-state transition is explored by means
of finite-size scaling. The ladders with an even number of legs and those with
an odd number of legs are distinguished clearly. In the former, the energy gap
opens up as $... | 1995-06-12 | 2016-08-31 | [
"cond-mat"
] | Naomichi Hatano and Yoshihiro Nishiyama (University of Tokyo) |
cond-mat/9506071 | Theory of arbitrarily polarized quantum Hall states | We propose a global model which accounts for all the observed quantum Hall
states in terms of an abelian doublet of Chern-Simons gauge fields, with the
strength of the Chern-Simons term given by a coupling matrix. The model is
employed within the composite fermion picture. | 1995-06-12 | 2008-02-03 | [
"cond-mat",
"hep-th"
] | Sudhansu S. Mandal and V. Ravishankar |
cond-mat/9506050 | Non-equilibrium Dynamics Following a Quench to the Critical Point in a
Semi-infinite System | We study the non-equilibrium dynamics (purely dissipative and relaxational)
in a semi-infinite system following a quench from the high temperature
disordered phase to its critical temperature. We show that the local
autocorrelation near the surface of a semi-infinite system decays algebraically
in time with a new expon... | 1995-06-12 | 2009-10-28 | [
"cond-mat"
] | Satya N. Majumdar and Anirvan M. Sengupta |
cond-mat/9506048 | Self organized criticality in a sandpile model with threshold
dissipation | We study a nonconservative sandpile model in one dimension, in which, if the
height at any site exceeds a threshold value, the site topples by transferring
one particle along each bond connecting it to its neighbours. Its height is
then set to one, irrespective of the initial value. The model shows nontrivial
critical ... | 1995-06-12 | 2016-08-31 | [
"cond-mat"
] | Agha Afsar Ali |
cond-mat/9506047 | Stability of Matter in Magnetic Fields | In the presence of arbitrarily large magnetic fields, matter composed of
electrons and nuclei was known to be unstable if $\alpha$ or $Z$ is too large.
Here we prove that matter {\it is stable\/} if $\alpha<0.06$ and
$Z\alpha^2<0.04$. | 1995-06-11 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | Elliott Lieb, Michael Loss and Jan Philip Solovej |
cond-mat/9506046 | Global phase diagram for the quantum Hall effect: An experimental
picture | We study the behavior of the extended states of a two-dimensional electron
system in silicon in a magnetic field, B. Our results show that the extended
states, corresponding to the centers of different Landau levels, merge with the
lowest extended state as B --> 0. Using our data, we construct an
experimental-based ``d... | 1995-06-10 | 2016-08-31 | [
"cond-mat"
] | S. V. Kravchenko, Whitney Mason, J. E. Furneaux, and V. M. Pudalov |
cond-mat/9506045 | Ultrasonic attenuation in d-wave superconductors | The longitudinal ultrasonic attenuation at low temperatures for a $d$-wave
superconducting order parameter is examined. The ratio of the superconducting
to normal state attenuation, $\alpha_{s}/\alpha_{n}$, depends strongly on the
direction of propagation of ultrasound with maxima corresponding to nodes of
the order pa... | 1995-06-10 | 2007-05-23 | [
"cond-mat"
] | Vladimir N. Kostur, Jayanta K. Bhattacharjee, and Richard A. Ferrell |
cond-mat/9506041 | The Ba 4d-f giant dipole resonance as a probe of the structure of
endohedral Ba@C_n metallofullerenes | We calculate the x-ray absorption near edge structure (XANES) modulating the
Ba 4d-photoabsorption cross section - the giant dipole resonance - centered
around 110 eV photon energy for several models of spherical and non-spherical
Ba@C_n metallofullerene cage systems. In the cases considered, the XANES
interference pat... | 1995-06-09 | 2009-10-28 | [
"cond-mat"
] | Jarek Luberek and Goran Wendin (Department of Applied Physics,
Chalmers University of Technology) |
cond-mat/9506039 | Transport Properties of "Extended-s" State Superconductors | Superconducting states with "extended s-wave" symmetry have been suggested in
connection with recent ARPES experiments on BSCCO. In the presence of
impurities, thermodynamic properties of such states reflect a residual density
of states $N(0)$ for a range of concentrations. While properties reflecting
$N(\omega)$ alone... | 1995-06-09 | 2009-10-28 | [
"cond-mat"
] | L.S. Borkowski, P.J. Hirschfeld, and W.O. Putikka |
cond-mat/9506044 | Design of Copolymeric Materials | We devise a method for designing materials that will have some desired
structural characteristics. We apply it to multiblock copolymers that have two
different types of monomers, A and B. We show how to determine what sequence of
A's and B's should be synthesised in order to give a particular structure and
morphology. ... | 1995-06-09 | 2009-10-28 | [
"cond-mat"
] | Tanya Kurosky and J.M.Deutsch |
cond-mat/9506042 | Lifetime of Two-Dimensional Electrons Measured by Tunneling Spectroscopy | For electrons tunneling between parallel two-dimensional electron systems,
conservation of in-plane momentum produces sharply resonant current-voltage
characteristics and provides a uniquely sensitive probe of the underlying
electronic spectral functions. We report here the application of this technique
to accurate mea... | 1995-06-09 | 2009-10-28 | [
"cond-mat"
] | S.Q. Murphy, J.P. Eisenstein, L.N. Pfeiffer and K.W. West |
cond-mat/9506043 | Heavy Fermion Superconductivity | A brief review is given on the current state of experimental and theoretical
work in the field of heavy fermion superconductivity. Particular emphasis is
placed on those experiments which demonstrate the presence of an unconventional
order parameter, as well as the intricate interplay of magnetism and
superconductivity... | 1995-06-09 | 2008-02-03 | [
"cond-mat",
"supr-con"
] | Robert H. Heffner and Michael R. Norman |
cond-mat/9506040 | Angular Dependent Magnetoresistance Oscillation of a
Quasi-Two-Dimensional System in a Periodic Potential | (BEDT-TTF)$_2$MHg(SCN)$_4$[M:K,Rb,Tl] shows typical two-dimensional angular
dependent magnetoresistance oscillation (ADMRO) at high temperature (T$>$8K),
but at lower temperature it shows anomalously large magnetoresistance, and the
ADMRO pattern changes. These low temperature behaviors are explained as effects
of a pe... | 1995-06-09 | 2009-10-28 | [
"cond-mat"
] | Daijiro Yoshioka |
cond-mat/9506034 | Aggregation with Multiple Conservation Laws | Aggregation processes with an arbitrary number of conserved quantities are
investigated. On the mean-field level, an exact solution for the size
distribution is obtained. The asymptotic form of this solution exhibits
nontrivial ``double'' scaling. While processes with one conserved quantity are
governed by a single sca... | 1995-06-08 | 2009-10-28 | [
"cond-mat"
] | P.L. Krapivsky and E. Ben-Naim |
cond-mat/9506038 | Low lying excitations of the Dynamical Jahn-Teller ions C_60^- and
C_60^2- | We compute the vibronic spectrum of gas phase fullerene negative ions
C_{60}^{-} and C_{60}^{2-}. We treat accurately the linear dynamical
Jahn-Teller of these ions in their ground state. In particular, coupling of the
t_{1u} orbital to the eight H_g vibrational modes is handled by exact
diagonalizations including up t... | 1995-06-08 | 2012-10-29 | [
"cond-mat"
] | Nicola Manini and Erio Tosatti |
cond-mat/9506035 | Density-functional theory of quantum wires and dots in a strong magnetic
field | 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 spatial ex... | 1995-06-08 | 2009-10-28 | [
"cond-mat"
] | T.H. Stoof and Gerrit E.W. Bauer |
cond-mat/9506037 | Crystal surfaces with correlated disorder: Phase transitions between
roughening and superroughening | A theory for surface transitions in the presence of a disordered pinning
potential is presented. Arbitrary disorder correlations are treated in the
framework of a dynamical functional renormalization group. The roughening
transition, where surface roughness and mobility behave discontinuously, is
shown to turn smoothly... | 1995-06-08 | 2009-10-28 | [
"cond-mat"
] | Stefan Scheidl (Univ. Cologne, Germany) |
cond-mat/9506036 | Time-dependent resonant tunneling via two discrete states | We theoretically investigate time-dependent resonant tunneling via two
discrete states in an experimentally relevant setup. Our results show that the
dc transport through the system can be controled by applying irradiation with a
frequency which matches the energy difference between the discrete states. We
predict reso... | 1995-06-08 | 2009-10-28 | [
"cond-mat"
] | T.H. Stoof and Yu.V. Nazarov |
cond-mat/9506027 | ON A DYNAMICAL MODEL OF GLASSES | We analyze a simple dynamical model of glasses, based on the idea that each
particle is trapped in a local potential well, which itself evolves due to
hopping of neighbouring particles. The glass transition is signalled by the
fact that the equilibrium distribution ceases to be normalisable, and dynamics
becomes non-st... | 1995-06-07 | 2009-10-28 | [
"cond-mat"
] | Jean-Philippe Bouchaud, Alain Comtet, C\'ecile Monthus |
cond-mat/9506032 | Haldane's Fractional Statistics and the Lowest Landau Level on a Torus | The Lowest Landau Level on a torus is studied. The dimension of the many-body
Hilbert space is obtained and is found to be different from the formula given
by Haldane. Our result can be tested in numerical investigations of the
low-energy spectrum of fractional quantum Hall states on a torus. | 1995-06-07 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | Ansar Fayyazuddin and Dingping Li |
cond-mat/9506031 | TDAE-\c60: Can a Mott insulator be a ferromagnet? | Motivated by the structure of TDAE-\c60, we derive a multicomponent
superexchange Hamiltonian for the spins and orbital (``isospin'') degrees of
freedom in the Mott-insulating phase. We explore its phase diagram and identify
points of special interest: an SU(4) antiferromagnet (solved by Sutherland) and
two ferromagnet... | 1995-06-07 | 2007-05-23 | [
"cond-mat"
] | Daniel P. Arovas and Assa Auerbach |
cond-mat/9506029 | UNREALIZABLE LEARNING IN FEEDFORWARD NEURAL NETWORKS | Statistical mechanics is used to study unrealizable generalization in two
large feed-forward neural networks with binary weights and output, a perceptron
and a tree committee machine. The student is trained by a teacher being larger,
i.e. having more units than the student. It is shown that this is the same as
using tr... | 1995-06-07 | 2007-05-23 | [
"cond-mat"
] | Matts Sporre |
cond-mat/9506033 | Critical Josephson Current in a Model Pb/YBa_2Cu_3O_7 Junction | In this article we consider a simple model for a c--axis
Pb/YBa_2Cu_3O_{7-\delta} Josephson junction. The observation of a nonzero
current in such a junction by Sun et al. [A. G. Sun, D. A. Gajewski, M. B.
Maple, R. C. Dynes, Phys. Rev. Lett. 72, 2267 (1994)] has been taken as
evidence against d--wave superconductivity... | 1995-06-07 | 2009-10-28 | [
"cond-mat"
] | W. A. Atkinson and J. P. Carbotte |
cond-mat/9506030 | Chaos in resonant-tunneling superlattices | Spatio-temporal chaos is predicted to occur in n-doped semiconductor
superlattices with sequential resonant tunneling as their main charge transport
mechanism. Under dc voltage bias, undamped time-dependent oscillations of the
current (due to the motion and recycling of electric field domain walls) have
been observed i... | 1995-06-07 | 2009-10-28 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | O.M. Bulashenko and L.L. Bonilla (Univ. Carlos III de Madrid) |
cond-mat/9506028 | Equilibrium Ensemble Approach to Disordered Systems I: General Theory,
Exact Results | An outline of Morita's equilibrium ensemble approach to disordered systems is
given, and hitherto unnoticed relations to other, more conventional approaches
in the theory of disordered systems are pointed out. It is demonstrated to
constitute a generalization of the idea of grand ensembles and to be intimately
related ... | 1995-06-07 | 2009-10-28 | [
"cond-mat"
] | Reimer K\"uhn |
cond-mat/9506025 | Lattice-Gas Models of Adsorption in the Double Layer | The theory of statistical-mechanical lattice-gas modeling of adsorption is
reviewed and shown to be applicable to a range of electrochemical problems
dominated by effective, lateral adsorbate--adsorbate interactions. A general
strategy for applying the method to specific systems is outlined, which
includes microscopic ... | 1995-06-06 | 2007-05-23 | [
"cond-mat",
"chem-ph",
"mtrl-th"
] | P.A. Rikvold, J. Zhang, Y.-E. Sung, and A. Wieckowski |
cond-mat/9506022 | Quantitative Description of $V_2O_3$ by the Hubbard Model in Infinite
Dimensions | We show that the analytic single-particle density of states and the optical
conductivity for the half-filled Hubbard model on the Bethe lattice in infinite
dimensions describe quantitatively the behavior of the gap and the kinetic
energy ratio of the correlated insulator $V_2O_3$. The form of the optical
conductivity s... | 1995-06-06 | 2013-07-22 | [
"cond-mat"
] | Jongbae Hong and Hae-Young Kee |
cond-mat/9506023 | DIFFUSIVE TRANSPORT IN A ONE DIMENSIONAL DISORDERED POTENTIAL INVOLVING
CORRELATIONS | This article deals with transport properties of one dimensional Brownian
diffusion under the influence of a correlated quenched random force,
distributed as a two-level Poisson process. We find in particular that large
time scaling laws of the position of the Brownian particle are analogous to the
uncorrelated case. We... | 1995-06-06 | 2009-10-28 | [
"cond-mat"
] | Cecile MONTHUS |
cond-mat/9506026 | Semiclassical description of spin ladders | The Heisenberg spin ladder is studied in the semiclassical limit, via a
mapping to the nonlinear $\sigma$ model. Different treatments are needed if the
inter-chain coupling $K$ is small, intermediate or large. For intermediate
coupling a single nonlinear $\sigma$ model is used for the ladder. Its predicts
a spin gap fo... | 1995-06-06 | 2009-10-28 | [
"cond-mat"
] | D. Senechal |
cond-mat/9506024 | DIFFUSION IN ONE DIMENSIONAL RANDOM MEDIUM AND HYPERBOLIC BROWNIAN
MOTION | Classical diffusion in a random medium involves an exponential functional of
Brownian motion. This functional also appears in the study of Brownian
diffusion on a Riemann surface of constant negative curvature. We analyse in
detail this relationship and study various distributions using stochastic
calculus and function... | 1995-06-06 | 2016-08-31 | [
"cond-mat"
] | Alain COMTET, Cecile MONTHUS |
cond-mat/9506018 | Hartree-Fock ground state of the composite fermion metal | Within the Hartree-Fock approximation the ground state of the composite
fermion metal is found. We observe that the single-particle energy spectrum is
dominated by the logarithmic interaction exchange term which leads to an
infinite jump of the single-particle energy at the Fermi momentum. It is shown
that the Hartree-... | 1995-06-05 | 2015-06-25 | [
"cond-mat"
] | P.Sitko and L.Jacak |
cond-mat/9506017 | Scaling, Propagation, and Kinetic Roughening of Flame Fronts in Random
Media | We introduce a model of two coupled reaction-diffusion equations to describe
the dynamics and propagation of flame fronts in random media. The model
incorporates heat diffusion, its dissipation, and its production through
coupling to the background reactant density. We first show analytically and
numerically that there... | 1995-06-05 | 2016-08-15 | [
"cond-mat",
"adap-org",
"nlin.AO"
] | N. Provatas, T. Ala-Nissila, M. Grant, K. R. Elder, and L. Pich\'e |
cond-mat/9506020 | Energy Barriers for Flux Lines in 3 Dimensions | I determine the scaling behavior of the free energy barriers encountered by a
flux line in moving through a three-dimensional random potential. A combination
of numerical simulations and analytic arguments suggest that these barriers
scale with the length of the line in the same way as the fluctuation in the
free energ... | 1995-06-05 | 2009-10-28 | [
"cond-mat"
] | Barbara Drossel |
cond-mat/9506019 | Theory of the Spin Gap in High Temperature Superconductors | We analyze pairing in two dimensional spin liquids. We argue that interplane
pairing enhanced by magnetic correlations is the most plausible explanation of
the spin gap phenomenon observed in underdoped cuprates. The details of the
pairing theory depend on the in-plane antiferromagnetic correlations. We
consider two mo... | 1995-06-05 | 2009-10-28 | [
"cond-mat"
] | B. L. Altshuler, L. B. Ioffe, A. J. Millis |
cond-mat/9506021 | Self-Organized Criticality and Synchronization in the Forest-Fire Model | Depending on the rule for tree growth, the forest-fire model shows either
self-organized criticality with rule-dependent exponents, or synchronization,
or an intermediate behavior. This is shown analytically for the one-dimensional
system, but holds evidently also in higher dimensions. | 1995-06-05 | 2009-10-28 | [
"cond-mat"
] | Barbara Drossel (MIT) |
cond-mat/9506016 | FRACTURING OF BRITTLE HOMOGENEOUS SOLIDS. FINITE SIZE SCALINGS | Using a two dimensional lattice model we investigate the crack growth under
the influence of remote tensile forces as well as due to an internally applied
pressure (hydraulic fracturing). For homogeneous elastic properties we present
numerical finite-size scalings for the breaking stresses and pressures in terms
of cra... | 1995-06-03 | 2008-12-18 | [
"cond-mat"
] | Frank Tzschichholz (PMMH URA 857, ESPCI, Paris, France) |
cond-mat/9506014 | Fracton Superconductivity in Quasicrystals --- A Theoretical Possibility
Suggested by Experiment | Scattering of electrons due to fractons can result in a resistivity that {\it
decreases} with temperature. Such a behavior also appears in real
quasicrystals. If this is then attributed to fracton scattering,
fracton-superconductivity would be theoretically possible. By fitting with the
scattering result the experiment... | 1995-06-02 | 2008-02-03 | [
"cond-mat"
] | K. Moulopoulos and F. Cyrot-Lackmann |
cond-mat/9506010 | MICROWAVE-INDUCED RESONANT REFLECTION AND LOCALIZATION OF BALLISTIC
ELECTRONS IN QUANTUM MICROCHANNELS | We show that electron transport in a ballistic microchannel supporting both
propagating and reflected modes can be completely blocked by applying a
microwave electromagnetic field. The effect is due to resonant reflection
caused by multiple coherent electron-photon scattering involving at least two
spatially localized ... | 1995-06-02 | 2009-10-28 | [
"cond-mat"
] | L. Y. Gorelik, M. Jonson, and R. I. Shekhter |
cond-mat/9506009 | Correlation effects in ionic crystals: I. The cohesive energy of MgO | High-level quantum-chemical calculations, using the coupled-cluster approach
and extended one-particle basis sets, have been performed for (Mg2+)n (O2-)m
clusters embedded in a Madelung potential. The results of these calculations
are used for setting up an incremental expansion for the correlation energy of
bulk MgO. ... | 1995-06-02 | 2009-10-28 | [
"cond-mat"
] | Klaus Doll, Michael Dolg, Peter Fulde, Hermann Stoll |
cond-mat/9506011 | Exact Results on Superconductivity due to Interband Coupling | We present a family of exactly solvable models at arbitrary filling in any
dimensions which exhibit novel superconductivity with interband pairing. By the
use of the hidden $SU(2)$ algebra the Hamiltonians were diagonalized
explicitly. The zero-temperature phase diagrams and the thermodynamic
properties are discussed. ... | 1995-06-02 | 2009-10-28 | [
"cond-mat"
] | Y. Morita, Y. Hatsugai and M. Kohmoto |
cond-mat/9506013 | Spin Waves in Quantum Antiferromagnets | Using a self-consistent mean-field theory for the $S=1/2$ Heisenberg
antiferromagnet Kr\"uger and Schuck recently derived an analytic expression for
the dispersion. It is exact in one dimension ($d=1$) and agrees well with
numerical results in $d=2$. With an expansion in powers of the inverse
coordination number $1/Z$ ... | 1995-06-02 | 2009-10-28 | [
"cond-mat"
] | B. Kleine, G.S. Uhrig and E. M\"uller-Hartmann |
cond-mat/9506012 | Transmission Resonance in an Infinite Strip of Phason-Defects of a
Penrose Approximant Network | An exact method that analytically provides transfer matrices in finite
networks of quasicrystalline approximants of any dimensionality is discussed.
We use these matrices in two ways: a) to exactly determine the band structure
of an infinite approximant network in analytical form; b) to determine, also
analytically, th... | 1995-06-02 | 2016-08-31 | [
"cond-mat"
] | K. Moulopoulos and S. Roche |
cond-mat/9506008 | UNREALIZABLE LEARNING IN BINARY FEEDFORWARD NEURAL NETWORKS | Statistical mechanics is used to study unrealizable generalization in two
large feed-forward neural networks with binary weights and output, a perceptron
and a tree committee machine. The student is trained by a teacher being larger,
i.e. having more units than the student. It is shown that this is the same as
using tr... | 1995-06-02 | 2007-05-23 | [
"cond-mat"
] | Matts Sporre (Nordita) |
cond-mat/9505157 | Quantum saturation and condensation of excitons in Cu$_2$O: a
theoretical study | Recent experiments on high density excitons in Cu$_2$O provide evidence for
degenerate quantum statistics and Bose-Einstein condensation of this nearly
ideal gas. We model the time dependence of this bosonic system including
exciton decay mechanisms, energy exchange with phonons, and interconversion
between ortho (trip... | 1995-06-01 | 2009-10-28 | [
"cond-mat"
] | G.M. Kavoulakis, Gordon Baym and J.P. Wolfe |
cond-mat/9506003 | Nonlinear optical response from excitons in soliton lattice systems of
doped conjugated polymers | Exciton effects on conjugated polymers are investigated in soliton lattice
states. We use the Su-Schrieffer-Heeger model with long-range Coulomb
interactions. The Hartree-Fock (HF) approximation and the single-excitation
configuration- interaction (single-CI) method are used to obtain optical
absorption spectra. The th... | 1995-06-01 | 2007-05-23 | [
"cond-mat",
"chem-ph",
"mtrl-th"
] | Kikuo Harigaya |
cond-mat/9505158 | Adiabatic Effective Action for Vortices in Neutral and Charged
Superfluids | Adiabatic effective action for vortices in neutral and charged superfluids at
zero temperature are calculated using the topological Landau-Ginzburg theory
recently proposed by Hatsuda, Yahikozawa, Ao and Thouless, and vortex dynamics
are examined. The Berry phase term arising in the effective action naturally
yields th... | 1995-06-01 | 2016-08-31 | [
"cond-mat",
"hep-th",
"supr-con"
] | M. Hatsuda, M. Sato, S. Yahikozawa and T. Hatsuda |
cond-mat/9506007 | Finite Size Effects for the Dilute Coupling Derrida Model | We consider paramagnetic, spin-glass and ferromagnetic phases. At $T=0$ model
gives for the some values of connectivity (near the critical) extremal
suppression of finite size effects (decoding error probability). | 1995-06-01 | 2016-08-31 | [
"cond-mat"
] | A.E. Allakhverdyan and D.B. Saakian |
cond-mat/9506002 | On the universality of a class of annihilation-coagulation models | A class of $d$-dimensional reaction-diffusion models interpolating
continuously between the diffusion-coagulation and the diffusion-annihilation
models is introduced. Exact relations among the observables of different models
are established. For the one-dimensional case, it is shown how correlations in
the initial stat... | 1995-06-01 | 2009-10-28 | [
"cond-mat"
] | Daniele Balboni, Pierre-Antoine Rey and Michel Droz |
cond-mat/9506005 | On surface properties of two-dimensional percolation clusters | The two-dimensional site percolation problem is studied by transfer-matrix
methods on finite-width strips with free boundary conditions. The relationship
between correlation-length amplitudes and critical indices, predicted by
conformal invariance, allows a very precise determination of the surface
decay-of-correlation... | 1995-06-01 | 2009-10-28 | [
"cond-mat"
] | S L A de Queiroz |
cond-mat/9506006 | Experimental Evidence for a Coulomb Gap in Two Dimensions | We have studied the resistivity, $\rho$, of a two-dimensional electron system
in silicon in the temperature range 200 mK < T < 7.5 K at zero magnetic field
at low electron densities, when the electron system is in the insulating
regime. Our results show that at an intermediate temperature range $\rho=\rho_0
exp[(T_0/T)... | 1995-06-01 | 2009-10-28 | [
"cond-mat"
] | Whitney Mason, S. V. Kravchenko, G. E. Bowker, and J. E. Furneaux |
cond-mat/9506004 | Role of phason-defects on the conductance of a 1-d quasicrystal | We have studied the influence of a particular kind of phason-defect on the
Landauer resistance of a Fibonacci chain. Depending on parameters, we sometimes
find the resistance to decrease upon introduction of defect or temperature, a
behavior that also appears in real quasicrystalline materials. We demonstrate
essential... | 1995-06-01 | 2009-10-28 | [
"cond-mat"
] | K. Moulopoulos and S. Roche |
cond-mat/9506001 | Classical and Quantum Dynamics of a Periodically Driven Particle in a
Triangular Well | We investigate the correspondence between classical and quantum mechanics for
periodically time dependent Hamiltonian systems, using the example of a
periodically forced particle in a one-dimensional triangular well potential. In
particular, we consider quantum mechanical Floquet states associated with
resonances in th... | 1995-06-01 | 2017-11-01 | [
"cond-mat"
] | Michael E. Flatt\'e and Martin Holthaus |
cond-mat/9506015 | Topological effects on magnitude of persistent current in a ring | We show that defects in 1D rings decrease the conductance (when the ring is
opened up) many more times than it decreases the persistent currents. This
means that the states in such a 1D ring are very sensitive to twisting of
boundary condition but conductance of the system is small. In 1D the electron
effectively sees ... | 1995-05-31 | 2007-05-23 | [
"cond-mat"
] | P. Singha Deo |
cond-mat/9505154 | Skyrme Crystal In A Two-Dimensional Electron Gas | The ground state of a two-dimensional electron gas at Landau level filling
factors near $\nu =1$ is a Skyrme crystal with long range order in the
positions and orientations of the topologically and electrically charged
elementary excitations of the $\nu=1$ ferromagnetic ground state. The lowest
energy Skyrme crystal is... | 1995-05-31 | 2009-10-28 | [
"cond-mat"
] | L.Brey, H.A.Fertig, R.Cote and A.H.MacDonald |
cond-mat/9505153 | Perturbation of Tunneling Processes by Mechanical Degrees of Freedom in
Mesoscopic Junctions | We investigate the perturbation in the tunneling current caused by
non-adiabatic mechanical motion in a mesoscopic tunnel junction. A theory
introduced by Caroli et al. \cite{bi1,bi2,bi3} is used to evaluate second order
self-energy corrections for this non-equilibrium situation lacking
translational invariance. Inelas... | 1995-05-31 | 2009-10-28 | [
"cond-mat"
] | N. F. Schwabe (Department of Theoretical Physics, University of
Oxford), A. N. Cleland, M. C. Cross, M. L. Roukes (California Institute of
Technology) |
cond-mat/9505152 | Composite fermions traversing a potential barrier | Using a composite fermion picture, we study the lateral transport between two
two-dimensional electron gases, at filling factor 1/2, separated by a potential
barrier. In the mean field approximation, composite fermions far from the
barrier do not feel a magnetic field while in the barrier region the effective
magnetic ... | 1995-05-31 | 2009-10-28 | [
"cond-mat"
] | L.Brey and C.Tejedor |
cond-mat/9505155 | Hot and repulsive traffic flow | We study a message passing model, applicable also to traffic problems. The
model is implemented in a discrete lattice, where particles move towards their
destination, with fluctuations around the minimal distance path. A repulsive
interaction between particles is introduced in order to avoid the appearance of
traffic j... | 1995-05-31 | 2009-10-28 | [
"cond-mat"
] | I. Campos, A. Tarancon (Univ. Zaragoza, Spain), F. Clerot (France
Telecom, CNET, Lannion, France), and L.A. Fernandez (Univ. Complutense de
Madrid, Spain) |
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