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 |
|---|---|---|---|---|---|---|
chao-dyn/9303001 | Far Dissipation Range of Turbulence | The very small scales of isotropic, Navier-Stokes turbulence at Reynolds
number ${\cal R}_\lambda \approx 15$ are studied by high-resolution direct
numerical simulation (DNS) and by integration of the direct-interaction (DIA)
equations. The DNS follows the tail of the energy spectrum over more than
thirty decades of ma... | 1993-03-04 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Shiyi Chen and Gary Doolen (CNLS, LANL), Jackson R. Herring (NCAR),
Robert H. Kraichnan (Santa Fe, NM), Steven A. Orszag (Princeton Univ.), and
Zhen Su She (Univ. of Arizona) |
chao-dyn/9303007 | On the equality of Hausdorff and box counting dimensions | By viewing the covers of a fractal as a statistical mechanical system, the
exact capacity of a multifractal is computed. The procedure can be extended to
any multifractal described by a scaling function to show why the capacity and
Hausdorff dimension are expected to be equal. | 1993-03-03 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Ronnie Mainieri |
chao-dyn/9302006 | Teardrop and heart orbits of a swinging Atwood's Machine | An exact solution is presented for a swinging Atwood's machine. This
teardrop-heart orbit is constructed using Hamilton-Jacobi theory. The example
nicely illustrates the utility of the Hamilton-Jacobi method for finding
solutions to nonlinear mechanical systems when more elementary techniques fail. | 1993-02-23 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Nicholas B. Tufillaro |
chao-dyn/9302005 | Cycles and Circles in Roundoff Errors | When a series of measurements is performed with increasingly coarse (or
increasingly fine) precision, consecutive observations seem to be erratically
distributed at first, and then organize themselves into cycles and patterns.
The patterns, which arise because of roundoff errors, are related to a notion
in number theor... | 1993-02-23 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | George G. Szpiro |
chao-dyn/9302004 | Can averaged orbits be used to extract scaling functions? | Trajectory scaling functions are the basic element in the study of chaotic
dynamical systems, from which any long time average can be computed. It has
never been extracted from an experimental time series the reason being its
sensitivity to noise. It is shown, by numerical simulations, that the
sensitivity of the scali... | 1993-02-17 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Ronnie Mainieri |
chao-dyn/9302003 | Steady-State Electrical Conduction in the Periodic Lorentz Gas | We study nonequilibrium steady states in the Lorentz gas of periodic
scatterers when an external field is applied and the particle kinetic energy is
held fixed by a ``thermostat'' constructed according to Gauss' principle of
least constraint (a model problem previously studied numerically by Moran and
Hoover). The resu... | 1993-02-08 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | N. I. Chernov, G. L. Eyink, J. L. Lebowitz and Ya. G. Sinai |
chao-dyn/9302002 | Periodic Orbit Theory of Anomalous Diffusion | We introduce a novel technique to find the asymptotic time behaviour of
deterministic systems exhibiting anomalous diffusion. The procedure is tested
for various classes of simple but physically relevant 1-D maps and possible
relevance of our findings for more complicated problems is briefly discussed. | 1993-02-05 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Roberto Artuso, Giulio Casati, and Roberto Lombardi |
chao-dyn/9302001 | Topological organization of (low-dimensional) chaos | Recent progress toward classifying low-dimensional chaos measured from time
series data is described. This classification theory assigns a template to the
time series once the time series is embedded in three dimensions. The template
describes the primary folding and stretching mechanisms of phase space
responsible for... | 1993-02-03 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Nicholas B. Tufillaro |
chao-dyn/9301003 | Symbolic dynamics I. Finite dispersive billiards | Orbits in different dispersive billiard systems, e.g. the 3 disk system, are
mapped into a topological well ordered symbol plane and it is showed that
forbidden and allowed orbits are separated by a monotone pruning front. The
pruning front can be approximated by a sequence of finite symbolic dynamics
grammars. | 1993-01-19 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Kai T. Hansen |
chao-dyn/9301004 | Symbolic dynamics II. The stadium billiard | We construct a well ordered symbolic dynamics plane for the stadium billiard.
In this symbolic plane the forbidden and the allowed orbits are separated by a
monotone pruning front, and allowed orbits can be systematically generated by
sequences of approximate finite grammars. | 1993-01-19 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Kai T. Hansen |
chao-dyn/9301005 | Symbolic dynamics III. Bifurcations in billiards and smooth potentials | The singular bifurcations in a dispersive billiard are discussed in terms of
symbolic dynamics and is compared to an example of a bifurcation tree in a
smooth potential. Possible generalizations to other smooth potentials are
discussed. | 1993-01-19 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Kai T. Hansen |
chao-dyn/9301002 | An alternative to Plemelj-Smithies formulas on infinite determinants | An alternative to Plemelj - Smithies formulas for the p -regularized
quantities $d^{(p)}(K)$ and $D^{(p)}(K)$ is presented which generalizes
previous expressions with $p=1$ due to Grothendieck and Fredholm. It is also
presented global upper bounds for these quantities. In particular we prove that
$$ |d^{(p)}(K)| \le e^... | 1993-01-11 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Domingos H. U. Marchetti |
chao-dyn/9301001 | Zeta function for the Lyapunov exponent of a product of random matrices | A cycle expansion for the Lyapunov exponent of a product of random matrices
is derived. The formula is non-perturbative and numerically effective, which
allows the Lyapunov exponent to be computed to high accuracy. In particular,
the free energy and the heat capacity are computed for the one-dimensional
Ising model wit... | 1993-01-11 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Ronnie Mainieri |
comp-gas/9312002 | Cellular automaton model of reaction-transport processes | The transport and chemical reactions of solutes are modelled as a cellular
automaton in which molecules of different species perform a random walk on a
regular lattice and react according to a local probabilistic rule. The model
describes advection and diffusion in a simple way, and as no restriction is
placed on the n... | 1993-12-10 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | T. Karapiperis (Paul Scherrer Institute, CH-5232 Villigen PSI,
Switzerland) and B. Blankleider (Paul Scherrer Institute, CH-5232 Villigen
PSI, Switzerland, and School of Physical Sciences, Flinders University,
Bedford Park, S.A. 5042, Australia (Present address)) |
comp-gas/9312001 | Lattice Methods and Their Applications To Reacting Systems | The recent development of the lattice gas automata method and its extension
to the lattice Boltzmann method have provided new computational schemes for
solving a variety of partial differential equations and modeling chemically
reacting systems. The lattice gas method, regarded as the simplest microscopic
and kinetic a... | 1993-12-08 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | S. Chen, S. P. Dawson, G. D. Doolen, D. R. Janecky and A. Lawniczak
(Theoretical Division and Center for Nonlinear Studies Los Alamos National
Laboratory, Los Alamos, NM, USA) |
comp-gas/9310002 | Particle-Mesh Methods on the Connection Machine | We describe an efficient Particle-Mesh algorithm for the Connection Machine
CM-5. Our particular method parallelizes well and the computation time per time
step decreases as the particles become more clustered. We achieve
floating-point computation rates of 4--5 MFlops/sec/processing node and total
operations (the sum ... | 1993-11-02 | 2009-10-22 | [
"comp-gas",
"astro-ph",
"nlin.CG"
] | Robert Ferrell and Edmund Bertschinger |
comp-gas/9310001 | Elimination of Nonlinear Deviations in Thermal Lattice BGK Models | Abstracet: We present a new thermal lattice BGK model in D-dimensional space
for the numerical calculation of fluid dynamics. This model uses a higher order
expansion of equilibrium distribution in Maxwellian type. In the mean time the
lattice symmetry is upgraded to ensure the isotropy of 6th order tensor. These
manip... | 1993-10-05 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | Yu Chen, Hirotada Ohashi and Mamoru Akiyama (Department of Quantumn
Engineering and Systems Science University of Tokyo, Japan) |
comp-gas/9308002 | Lattice Boltzmann-Langevin Equations | Intrinsic fluctuations around the solution of the lattice Boltzmann equation
are described or modeled by addition of a white Gaussian noise source. For
stationary states a fluctuation-dissipation theorem relates the variance of the
fluctuations to the linearized Boltzmann collision operator and the pair
correlation fun... | 1993-09-01 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | J.W. Dufty, M.H. Ernst |
comp-gas/9308003 | Instabilities and Patterns (minor technical modifications) | Violation of (semi)-detailed balance conditions in lattice gas automata gives
rise to unstable spatial fluctuations that lead to phase separation and pattern
formation in spinodal decomposition, unstable propagating modes, driven
diffusive systems and unstable uniform flows. | 1993-09-01 | 2008-02-03 | [
"comp-gas",
"nlin.CG",
"nlin.PS",
"patt-sol"
] | M.H. Ernst and H.J. Bussemaker (Institute for Theoretical Physics,
University of Utrecht, The Netherlands) |
comp-gas/9308001 | Hydrodynamic behaviour of Lattice Boltzmann and Lattice BGK models | We present a numerical analysis of the validity of classical and generalized
hydrodynamics for Lattice Boltzmann Equation (LBE) and Lattice BGK methods in
two and three dimensions, as a function of the collision parameters of these
models. Our analysis is based on the wave-number dependence of the evolution
operator. G... | 1993-08-30 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | O. Behrend (Dept. of Physics, The Univ. of Edinburgh, UK), R. Harris
(Dept. of Physics, The Univ. of Edinburgh, UK and Dept. of Physics and Centre
for the Physics of Materials, McGill Univ., Montreal, Canada), and P. Warren
(Unilever Research, Port Sunlight Laboratory, UK) |
comp-gas/9307004 | Abstracts on Pattern Formation and Lattice-Gas Automata | This article contains 39 pages of abstracts of invited and poster
presentations for the FIELDS INSTITUTE FOR RESEARCH IN MATHEMATICAL SCIENCES
AND NATO ADVANCED RESEARCH WORKSHOP PROGRAM ON PATTERN FORMATION and
LATTICE-GAS AUTOMATA, JUNE 07-12, 1993 | 1993-08-06 | 2016-08-31 | [
"comp-gas",
"nlin.CG"
] | Gary Doolen (Los Alamos National Lab) and Anna Lawniczak (Guelph
Univ.) |
comp-gas/9307003 | Accuracy of Discrete-Velocity BGK Models for the Simulation of the
Incompressible Navier-Stokes Equations | Two discretizations of a 9-velocity Boltzmann equation with a BGK collision
operator are studied. A Chapman-Enskog expansion of the PDE system predicts
that the macroscopic behavior corresponds to the incompressible Navier-Stokes
equations with additional terms of order Mach number squared. We introduce a
fourth-order ... | 1993-07-23 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | Marc B. Reider and James D. Sterling (Center for Nonlinear Studies,
Los Alamos National Laboratory) |
comp-gas/9307002 | A Vectorized Algorithm for Molecular Dynamics of Short Range Interacting
Particles | We report on a lattice based algorithm, completely vectorized for molecular
dynamics simulations. Its algorithmic complexity is of the order $O(N)$, where
$N$ is the number of particles. The algorithm works very effectively when the
particles have short range interaction, but it is applicable to each kind of
interactio... | 1993-07-19 | 2019-06-05 | [
"comp-gas",
"nlin.CG"
] | V.Buchholtz and T.P\"oschel |
comp-gas/9307001 | Numerical Solution of the Schroedinger Equation using a Quantum Lattice
Boltzmann Equation} | The quantum Lattice Boltzmann equation (QLBe), a new variant of the lattice
Boltzmann equation, specifically designed to describe non relativistic quantum
motion, is validated for the case of a free-particle in (1+1) space-time
dimensions. The proper parameter regime under which the method needs to be
operated in order... | 1993-07-07 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | S. Succi( IBM European Center for Scientific and Engineering
Computing, Roma, Italy) |
comp-gas/9306005 | Numerical Simulations of Particulate Suspensions via a Discretized
Boltzmann Equation Part II. Numerical Results | A new and very general technique for simulating solid-fluid suspensions has
been described in a previous paper (Part I); the most important feature of the
new method is that the computational cost scales with the number of particles.
In this paper (Part II), extensive numerical tests of the method are described;
for cr... | 1993-07-01 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | Anthony J. C. Ladd (Lawrence Livermore National Laboratory) |
comp-gas/9306004 | Numerical Simulations of Particulate Suspensions via a Discretized
Boltzmann Equation Part I. Theoretical Foundation | A new and very general technique for simulating solid-fluid suspensions is
described; its most important feature is that the computational cost scales
linearly with the number of particles. The method combines Newtonian dynamics
of the solid particles with a discretized Boltzmann equation for the fluid
phase; the many-... | 1993-07-01 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | Anthony J. C. Ladd (Lawrence Livermore National Laboratory) |
comp-gas/9306003 | Exact Results for the Asymmetric Simple Exclusion Process with a
Blockage | We present new results for the current as a function of transmission rate in
the one dimensional totally asymmetric simple exclusion process (TASEP) with a
blockage that lowers the jump rate at one site from one to r < 1. Exact finite
volume results serve to bound the allowed values for the current in the
infinite syst... | 1993-06-24 | 2016-08-31 | [
"comp-gas",
"nlin.CG"
] | Steven A. Janowsky (Rutgers) and Joel L. Lebowitz (Rutgers) |
comp-gas/9306002 | Initial and Boundary Conditions for the Lattice Boltzmann Method | A new approach of implementing initial and boundary conditions for the
lattice Boltzmann method is presented. The new approach is based on an extended
collision operator that uses the gradients of the fluid velocity. The numerical
performance of the lattice Boltzmann method is tested on several problems with
exact solu... | 1993-06-19 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | P. A. Skordos (LANL B258, Los Alamos, NM 87545, and Massachusetts
Institute of Technology, 545 Technology Square, NE43-432, Cambridge, MA
02139) |
comp-gas/9306001 | Stability Analysis of Lattice Boltzmann Methods | The lattice Boltzmann equation describes the evolution of the velocity
distribution function on a lattice in a manner that macroscopic fluid dynamical
behavior is recovered. Although the equation is a derivative of lattice gas
automata, it may be interpreted as a Lagrangian finite-difference method for
the numerical si... | 1993-06-15 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | James D. Sterling (Advanced Projects Research Incorporated), and Shiyi
Chen (Theoretical Division, Los Alamos National Laboratory) |
comp-gas/9305005 | A New Class of Cellular Automata for Reaction-Diffusion Systems | We introduce a new class of cellular automata to model reaction-diffusion
systems in a quantitatively correct way. The construction of the CA from the
reaction-diffusion equation relies on a moving average procedure to implement
diffusion, and a probabilistic table-lookup for the reactive part. The
applicability of the... | 1993-05-30 | 2016-08-14 | [
"comp-gas",
"nlin.CG"
] | J\"org R. Weimar and Jean-Pierre Boon (Universit\'e Libre de
Bruxelles) |
comp-gas/9305004 | Global Bifurcations in Rayleigh-Benard Convection: Experiments,
Empirical Maps and Numerical Bifurcation Analysis | We use nonlinear signal processing techniques, based on artificial neural
networks, to construct an empirical mapping from experimental Rayleigh-Benard
convection data in the quasiperiodic regime. The data, in the form of a
one-parameter sequence of Poincare sections in the interior of a mode-locked
region (resonance h... | 1993-05-27 | 2009-10-22 | [
"comp-gas",
"chao-dyn",
"nlin.CD",
"nlin.CG"
] | I. G. Kevrekidis and R. Rico-Martinez (Department of Chemical
Engineering, Princeton University, Princeton, NJ 08544-5263), R. E. Ecke
(Physics Division and Center for Nonlinear Studies, Los Alamos National
Laboratory, Los Alamos, NM 87545), and R. M. Farber and A. S. Lapedes
(Theoretical Division, Los Alamos N... |
comp-gas/9305003 | The non-linear response of the magnetosphere: 30 October 1978 | Previous efforts to find evidence of deterministic nonlinear dynamics in the
global geomagnetic system have treated the geomagnetic system as autonomous.
However, the geomagnetic system is strongly driven by the stochastic solar
wind. We consider the response of the magnetosphere, as given by the AE index,
for one day ... | 1993-05-26 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | C. P. Price and D. Prichard (University of Alaska, Fairbanks) |
comp-gas/9305002 | Convergence of Convective-Diffusive Lattice Boltzmann Methods | Lattice Boltzmann methods are numerical schemes derived as a kinetic
approximation of an underlying lattice gas. A numerical convergence theory for
nonlinear convective-diffusive lattice Boltzmann methods is established.
Convergence, consistency, and stability are defined through truncated Hilbert
expansions. In this s... | 1993-05-25 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | Bracy H. Elton (Fujitsu America, Inc.), Garry H. Rodrigue (Lawrence
Livermore National Laboratory and University of California, Davis), and C.
David Levermore (University of Arizona) |
comp-gas/9305001 | Identification of Continuous-Time Dynamical Systems: Neural Network
Based Algorithms and Parallel Implementation | Time-delay mappings constructed using neural networks have proven successful
in performing nonlinear system identification; however, because of their
discrete nature, their use in bifurcation analysis of continuous-time systems
is limited. This shortcoming can be avoided by embedding the neural networks in
a training a... | 1993-05-13 | 2016-08-14 | [
"comp-gas",
"adap-org",
"nlin.AO",
"nlin.CG"
] | Robert M. Farber and Alan S. Lapedes (Theoretical Division, LANL), and
Ramiro Rico-Mart\'inez and Ioannis G. Kevrekidis (Department of Chemical
Engineering, Princeton University) |
comp-gas/9304005 | Hydrodynamic Spinodal Decomposition: Growth Kinetics and Scaling
Functions | We examine the effects of hydrodynamics on the late stage kinetics in
spinodal decomposition. From computer simulations of a lattice Boltzmann scheme
we observe, for critical quenches, that single phase domains grow
asymptotically like $t^{\alpha}$, with $\alpha \approx .66$ in two dimensions
and $\alpha \approx 1.0$ i... | 1993-04-28 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | F. J. Alexander, S. Chen and D. W. Grunau (LANL) |
comp-gas/9304007 | Don't bleach chaotic data | A common first step in time series signal analysis involves digitally
filtering the data to remove linear correlations. The residual data is
spectrally white (it is ``bleached''), but in principle retains the nonlinear
structure of the original time series. It is well known that simple linear
autocorrelation can give r... | 1993-04-28 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | James Theiler (CNLS and T-division, LANL; and Santa Fe Institute),
Stephen Eubank (CNLS and T-division, LANL; Santa Fe Institute, and Prediction
Company) |
comp-gas/9304006 | Lattice Boltzmann Thermohydrodynamics | We introduce a lattice Boltzmann computational scheme capable of modeling
thermohydrodynamic flows of monatomic gases. The parallel nature of this
approach provides a numerically efficient alternative to traditional methods of
computational fluid dynamics. The scheme uses a small number of discrete
velocity states and ... | 1993-04-28 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | F. J. Alexander (LANL), S. Chen (LANL) and J. D. Sterling (LANL and
Advanced Projects Research Incorporated) |
comp-gas/9304003 | The Lattice Boltzmann Equation Method for the Simulation of Compressible
Fluid Flow | We systematically derived hydrodynamic equations and transport coefficients
for a class of multi-speed lattice Boltzmann models in D dimensions, using the
multi-scale technique. The constitutive relation of physical fluid is recovered
by a modified equilibrium distribution in Maxwell-Boltzmann type. With the use
of the... | 1993-04-22 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | Yu Chen, Hirotada Ohashi, and Mamoru Akiyama |
comp-gas/9304004 | Wavelets and Fast Numerical Algorithms | Wavelet based algorithms in numerical analysis are similar to other transform
methods in that vectors and operators are expanded into a basis and the
computations take place in this new system of coordinates. However, due to the
recursive definition of wavelets, their controllable localization in both space
and wave nu... | 1993-04-22 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | G. Beylkin (Program in Applied Mathematics, University of Colorado at
Boulder) |
comp-gas/9304002 | Lattice Boltzmann Equation for Quantum Mechanics | It is shown that the Lattice Boltzmann equation for hydrodynamics can be
extended in such a way as to describe non-relativistic quantum mechanics. | 1993-04-21 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | S. Succi (IBM ECSEC, European Center for Scientific and Engineering
Computing, Rome, Italy) and R. Benzi(Physics Department, Universita' Roma II,
Tor Vergata) |
comp-gas/9304001 | Domain Growth, Wetting and Scaling in Porous Media | The lattice Boltzmann (LB) method is used to study the kinetics of domain
growth of a binary fluid in a number of geometries modeling porous media.
Unlike the traditional methods which solve the Cahn-Hilliard equation, the LB
method correctly simulates fluid properties, phase segregation, interface
dynamics and wetting... | 1993-04-21 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | D. W. Grunau, T. Lookman, S. Y. Chen, and A. S. Lapedes (LANL) |
comp-gas/9303003 | Comparison of Spectral Method and Lattice Boltzmann Simulations of
Two-Dimensional Hydrodynamics | We present numerical solutions of the two-dimensional Navier-Stokes equations
by two methods; spectral and the novel Lattice Boltzmann Equation (LBE) scheme.
Very good agreement is found for global quantities as well as energy spectra.
The LBE scheme is, indeed, providing reasonably accurate solutions of the
Navier-Sto... | 1993-03-11 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | D.O.Martinez and W.H.Matthaeus (Bartol Research Institute, University
of Delaware), S. Chen (CNLS and Theoretical Division, Los Alamos), and
D.C.Montgomery (Department of Physics and Astronomy, Dartmouth College) |
comp-gas/9303002 | Message-Passing Multi-Cell Molecular Dynamics on the Connection Machine
5 | We present a new scalable algorithm for short-range molecular dynamics
simulations on distributed memory MIMD multicomputer based on a message-passing
multi-cell approach. We have implemented the algorithm on the Connection
Machine 5 (CM-5) and demonstrate that meso-scale molecular dynamics with more
than $10^8$ partic... | 1993-03-09 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | D. M. Beazley (Center for Nonlinear Studies, LANL) and P. S. Lomdahl
(Theoretical Division, LANL) |
comp-gas/9303001 | A Lattice Boltzmann Model for Multi-phase Fluid Flows | We develop a lattice Boltzmann equation method for simulating multi-phase
immiscible fluid flows with variation of density and viscosity, based on the
model proposed by Gunstensen {\em et al} for two-component immiscible fluids.
The numerical measurements of surface tension and viscosity agree well with
theoretical pre... | 1993-03-04 | 2009-10-22 | [
"comp-gas",
"nlin.CG"
] | Daryl Grunau (EESD, LANL), Shiyi Chen (T-Div and CNLS, LANL), and
Kenneth Egger (EESD, LANL) |
comp-gas/9302003 | Detecting Nonlinearity in Data with Long Coherence Times | We consider the limitations of two techniques for detecting nonlinearity in
time series. The first technique compares the original time series to an
ensemble of surrogate time series that are constructed to mimic the linear
properties of the original. The second technique compares the forecasting error
of linear and no... | 1993-02-26 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | James Theiler (LANL/SFI), Paul S. Linsay (MIT), and David M. Rubin
(USGS) |
comp-gas/9302002 | Statistical error in a chord estimator of correlation dimension: the
``rule of five'' | The statistical precision of a chord method for estimating fractal dimension
from a correlation integral is derived. The optimal chord length is determined,
and a comparison is made to other estimators. These calculations use the
approximation that all pairwise distances between the points are statistically
independent... | 1993-02-26 | 2019-06-05 | [
"comp-gas",
"nlin.CG"
] | James Theiler and Turab Lookman |
comp-gas/9302001 | Some comments on the correlation dimension of $1/f^\alpha$ noise | It has recently been observed that a stochastic (infinite degree of freedom)
time series with a $1/f^\alpha$ power spectrum can exhibit a finite correlation
dimension, even for arbitrarily large data sets. [A.R. Osborne and
A.~Provenzale, {\sl Physica D} {\bf 35}, 357 (1989).] I will discuss the
relevance of this obser... | 1993-02-10 | 2008-02-03 | [
"comp-gas",
"nlin.CG"
] | James Theiler |
cond-mat/9312096 | Anomalous Magnetic Properties of Rh$_13$ Clusters | Electronic structures of 13-atom Rh clusters with three possible
high-symmetry geometries are studied using the discrete-variational
local-spin-density-functional method. The ground state is found to be the
icosahedral structure, and a total magnetic moment of 15$\mu_B$ is obtained for
the cluster. This value is anomal... | 1993-12-31 | 2007-05-23 | [
"cond-mat"
] | Yang Jinlong, F.Toigo, Wang Kelin, and Zhang Manhong |
cond-mat/9312095 | Spin-orbit Scattering and the Kondo Effect | The effects of spin-orbit scattering of conduction electrons in the Kondo
regime are investigated theoretically. It is shown that due to time-reversal
symmetry, spin-orbit scattering does not suppress the Kondo effect, even though
it breaks spin-rotational symmetry, in full agreement with experiment. An
orbital magneti... | 1993-12-29 | 2009-10-22 | [
"cond-mat"
] | Yigal Meir (Physics Department, University of California, Santa
Barbara) and Ned S. Wingreen (NEC Research Institute) |
cond-mat/9312094 | Erratum: Properties of Odd Gap Superconductors | Erratum to cond-mat 9309014 | 1993-12-27 | 2007-05-23 | [
"cond-mat"
] | A.V. Balatsky, E. Abrahams, D.J. Scalapino and J.R. Schrieffer |
cond-mat/9312093 | Conductance of Aharonov--Bohm Rings: From the Discrete to the Continuous
Spectrum Limit | The dissipative conductance of an array of mesoscopic rings, subject to an
a.c. magnetic flux is investigated. The magneto--conductance may change sign
between canonical and grand-canonical statistical ensembles, as function of the
inelastic level broadening and as function of the temperature. Differences
between canon... | 1993-12-27 | 2009-10-22 | [
"cond-mat"
] | Alex Kamenev, Bertrand Reulet, Helene Bouchiat, and Yuval Gefen |
cond-mat/9312092 | Pattern Formation in Laser Induced Melting | A laser focussed onto a semiconductor film can create a disordered lamellae
pattern of coexisting molten-solid regions. We present a continuum model based
on the higher reflectivity of the molten regions. For large latent heat, this
model becomes equivalent to a model of block copolymers. The characteristic
wavenumber ... | 1993-12-23 | 2009-10-22 | [
"cond-mat"
] | Chuck Yeung and Rashmi Desai |
cond-mat/9312089 | Spin-gap formation in cuprates: gauge theory | We analyze the phase diagram of single and bi-layer cuprates using the
gauge-field description of the t-J model. For $T>T_{\text{BE}}$ the in-plane
fermion-pairing order parameter $\Delta_{\scriptscriptstyle\parallel}$ is
eliminated by gauge field fluctuations, leading us to predict the absence of a
spin-gap phase in s... | 1993-12-22 | 2007-05-23 | [
"cond-mat"
] | Menke U. Ubbens and Patrick A. Lee |
cond-mat/9312091 | Fractional Quantum Hall States in Low-Zeeman-Energy Limit | We investigate the spectrum of interacting electrons at arbitrary filling
factors in the limit of vanishing Zeeman splitting. The composite fermion
theory successfully explains the low-energy spectrum {\em provided the
composite fermions are treated as hard-core}. | 1993-12-22 | 2009-10-22 | [
"cond-mat"
] | X.G. Wu and J.K. Jain |
cond-mat/9312090 | Hund's Rule for Composite Fermions | We consider the ``fractional quantum Hall atom" in the vanishing Zeeman
energy limit, and investigate the validity of Hund's maximum-spin rule for
interacting electrons in various Landau levels. While it is not valid for {\em
electrons} in the lowest Landau level, there are regions of filling factors
where it predicts ... | 1993-12-22 | 2009-10-22 | [
"cond-mat"
] | J.K. Jain and X.G.Wu |
cond-mat/9312084 | Magnetic Properties of the Spin-1/2
Ferromagnetic-Ferromagnetic-Antiferromagnetic Trimerized Heisenberg Chain: | The magnetic properties of the ferromagnetic-ferromagnetic-antiferromagnetic
trimerized spin-1/2 Heisenberg chain are studied theoretically. The high
temperature susceptibilty and the ground state saturation magnetic field are
calculated and the exchange energies of the trimer compound 3CuCl${}_2\cdot$2dx
are determine... | 1993-12-21 | 2009-10-22 | [
"cond-mat"
] | Kazuo Hida |
cond-mat/9312087 | Quantum Antiferromagnet at Finite Temperature: A Gauge Field Approach | Starting from the $CP^{N-1}$ model description of the thermally disordred
phase of the $D=2$ quantum antiferromagnet, we examine the interaction of the
Schwinger-boson spin-1/2 mean-field excitations with the generated gauge
(chirality) fluctuations in the framework of the 1/N expansion. This
interaction dramatically s... | 1993-12-21 | 2009-10-22 | [
"cond-mat"
] | Oleg Starykh and George Reiter |
cond-mat/9312086 | Non-Fermi Liquid Fixed Point in 2+1 Dimensions | We construct models of excitations about a Fermi surface that display
calculable deviations from Fermi liquid behavior in the low-energy limit. They
arise as a consequence of coupling to a Chern-Simons gauge field, whose
fluctations are controlled through a ${1\over{k^x}}$ interaction. The Fermi
liquid fixed point is s... | 1993-12-21 | 2009-10-22 | [
"cond-mat"
] | Chetan Nayak and Frank Wilczek |
cond-mat/9312085 | Parity Violation in Aharonov-Bohm Systems: The Spontaneous Hall Effect | We show how macroscopic manifestations of $P$ (and $T$) symmetry breaking can
arise in a simple system subject to Aharonov-Bohm interactions. Specifically,
we study the conductivity of a gas of charged particles moving through a dilute
array of flux tubes. The interaction of the electrons with the flux tubes is
taken t... | 1993-12-21 | 2022-03-07 | [
"cond-mat",
"hep-th"
] | R. Emparan and M. A. Valle Basagoiti |
cond-mat/9312083 | Luttinger Liquid in a Solvable 2-Dimensional Model | We consider spinless electrons in two dimensions with the bare spectrum
$\epsilon({\bf p})=|p_x|+|p_y|$. In momentum space, the interactions among
electrons have a finite range $q_0$, which is small compared to the Fermi
momentum. A golden rule calculation of the electron lifetime indicates a
breakdown of the Landau Fe... | 1993-12-21 | 2009-10-22 | [
"cond-mat"
] | R. Hlubina |
cond-mat/9312074 | Electron--Vibron Interactions and Berry Phases in Charged
Buckminsterfullerene: Part I | A simple model for electron-vibron interactions on charged
buckminsterfullerene C$_{60}^{n-}$, $n=1,\ldots 5$, is solved both at weak and
strong couplings. We consider a single $H_g$ vibrational multiplet interacting
with $t_{1u}$ electrons. At strong coupling the semiclassical dynamical
Jahn-Teller theory is valid. Th... | 1993-12-20 | 2009-10-22 | [
"cond-mat"
] | Assa Auerbach, Nicola Manini and Erio Tosatti |
cond-mat/9312079 | Magnetic Response of Disordered Ballistic Quantum Dots | The weak field average magnetic susceptibility of square shaped mesoscopic
conductors is studied within a semiclassical framework. Long semiclassical
trajectories are strongly affected by static disorder and differ sharply from
those of clean systems. They give rise to a large linear paramagnetic
susceptibility which i... | 1993-12-20 | 2009-10-22 | [
"cond-mat"
] | Yuval Gefen, Daniel Braun and Gilles Montambaux |
cond-mat/9312082 | Theory of Coexisting Transverse Spin Freezing and Long-Ranged
Antiferromagnetic Order in Lightly Doped La_{2-x}Sr_x CuO_4 | We provide an explanation of the spin-freezing transition recently observed
by Chou et al. (Phys. Rev. Lett. 71, 2323 (1993)) in La_{2-x}Sr_x CuO_4 for x
<= 0.02. We propose that topological excitations of the 2D Heisenberg quantum
antiferromagnet having non-coplanar transverse components have a
pair-interaction energy... | 1993-12-20 | 2009-10-22 | [
"cond-mat"
] | R.J. Gooding, N.M. Salem and A. Mailhot |
cond-mat/9312081 | Microscopic Theory of Josephson Mesoscopic Constrictions | We present a microscopic theory for the d.c. Josephson effect in model
mesoscopic constrictions. Our method is based on a non-equilibrium Green
function formalism which allows for a self-consistent determination of the
order parameter profile along the constriction. The various regimes defined by
the different length s... | 1993-12-20 | 2009-10-22 | [
"cond-mat"
] | A. Martin-Rodero, F.J. Garcia-Vidal and A. Levy-Yeyati |
cond-mat/9312076 | Electron--Vibron Interactions in Charged Buckminsterfullerene: Pair
Energies and Spectra (Part II) | The ground state energy shifts and excitation spectra of charged
buckminsterfullerene C$_{60}^{n-}$, $n=1,\ldots 5$ are calculated. The
electron--vibron Hamiltonian of Part I is extended to include all $A_g$ and
$H_g$ modes with experimentally determined frequencies and theoretically
estimated coupling constants. Compl... | 1993-12-20 | 2009-10-22 | [
"cond-mat"
] | Nicola Manini, Erio Tosatti and Assa Auerbach |
cond-mat/9312075 | The orbital relaxation: a possible origin of t-J model with large J | Whereas the t-J model has gained wide popularity among physicists as a model
for high-T_C superconductivity, its physical origin is not at all clear. In
this communication we show that the Hubbard model with occupation-dependent
hopping (t_1-t_2-t_3-U model), recently proposed to account for the relaxation
of doubly-oc... | 1993-12-20 | 2009-10-22 | [
"cond-mat"
] | Alessandro Fortunelli and Anna Painelli |
cond-mat/9312078 | Dynamics of Nonequilibrium Processes: Surface Adsorption,
Reaction-Diffusion Kinetics, Ordering and Phase Separation, a short review
contributed to the book "Trends in Statistical Physics," | This short review covers a wide selection of topics from a multidisciplinary
area of dynamics of nonequilibrium systems in physics, chemistry, biology.
Theoretical models of colloid particle and protein deposition and adhesion at
surfaces, accompanied by relaxation processes, of reaction kinetics with and
without diffu... | 1993-12-20 | 2007-05-23 | [
"cond-mat"
] | Vladimir Privman |
cond-mat/9312073 | Magnetic Phase Diagram of the Ferromagnetically Stacked Triangular XY
Antiferromagnet: A Finite-Size Scaling Study | Histogram Monte-Carlo simulation results are presented for the magnetic-field
-- temperature phase diagram of the XY model on a stacked triangular lattice
with antiferromagnetic intraplane and ferromagnetic interplane interactions.
Finite-size scaling results at the various transition boundaries are consistent
with exp... | 1993-12-19 | 2009-10-22 | [
"cond-mat"
] | M.L. Plumer, A. Mailhot, and A. Caill\'e (Universit\'e de Sherbrooke,
Sherbrooke, Qu\'ebec, Canada) |
cond-mat/9312088 | Quantum Group and Magnetic Translations. Bethe-Ansatz Solution for
Azbel-Hofstadter Problem | We present a new approach to the problem of Bloch electrons in magnetic (
sometimes called Azbel-Hofstadter problem) field, by making explicit a natural
relation between the group of magnetic translations and the quantum group
$U_{q}(sl_2)$. The approach allows us to express the "mid" band spectrum of the
model and the... | 1993-12-19 | 2009-10-22 | [
"cond-mat",
"hep-th"
] | P.B Wiegmann and A.V.Zabrodin |
cond-mat/9312072 | Chaos In A Homogeneous Model For Earthquakes | We investigate the nonlinear properties of a system introduced by Burridge
and Knopoff to model the dynamics of earthquakes. We find that a two-block
system in a completely homogeneous configuration presents a complex behavior
characterized by the presence of periodic, quasiperiodic and chaotic orbits. We
have found ro... | 1993-12-19 | 2007-05-23 | [
"cond-mat"
] | Maria de Sousa Vieira |
cond-mat/9312071 | Effect of screening of the Coulomb interaction on the conductivity in
the quantum Hall regime | We study variable range hopping in the quantum Hall effect regime in the
presence of a metallic gate parallel to the plane of a two-dimensional electron
gas. Screening of the Coulomb interaction by the gate causes the partial
``filling'' of the Coulomb gap in the density of localized states. At low
enough temperatures ... | 1993-12-18 | 2009-10-22 | [
"cond-mat"
] | I. L. Aleiner and B. I. Shklovskii |
cond-mat/9312070 | A Calculation of the Exponent $\mu$ for the Gauge Glass model | Removed according to the author's request :
Dear Administrator,
Please,please could you remove the paper,tentatively assigned the number
9312070, with title "A calculation of the exponent mu for the gauge glass
model" and just submitted to the cond-mat board as it contains an important
error. Mike Moore | 1993-12-17 | 2009-10-22 | [
"cond-mat"
] | M.A. Moore and S. Murphy |
cond-mat/9312069 | Monte Carlo Studies of the Two-Dimensional Vortex Liquid: Absence of
Transition and Dynamical Properties | Monte Carlo simulations are performed to study the properties of type-II
superconducting films in a magnetic field in which the vortices move in the
two-dimensional geometry represented by the surface of a sphere. No numerical
evidence is found for any melting transition, although the correlation length
over which vort... | 1993-12-17 | 2009-10-22 | [
"cond-mat"
] | H.H. Lee and M.A. Moore |
cond-mat/9312065 | Critical behaviour of a surface reaction model with infinitely many
absorbing states | In a recent letter [J. Phys. A26, L801 (1993)], Yaldram et al. studied the
critical behaviour of a simple lattice gas model of the CO-NO catalytic
reaction. The model exhibits a second order nonequilibrium phase transition
from an active state into one out of infinitely many absorbing states.
Estimates for the critical... | 1993-12-16 | 2009-10-22 | [
"cond-mat"
] | Iwan Jensen |
cond-mat/9312068 | Propogation of Electromagnetic Waves in the Core of a String Defect in
Liquid Crystals | We investigate the propagation of electromagnetic waves in the core of a
winding number one string defect with isotropic core in nematic liquid
crystals. We numerically solve wave equations for the TE mode and show the
existence of guided modes arising due to the variation of the refractive index
as a function of the s... | 1993-12-16 | 2007-05-23 | [
"cond-mat"
] | Ajit M. Srivastava and Michael Stone |
cond-mat/9312066 | A Monte-Carlo Analysis of Percolation of Line-Segments on a Square
Lattice | We study the percolative properties of bi-dimensional systems generated by a
random sequential adsorption of line-segments on a square lattice. As the
segment length grows, the percolation threshold decreases, goes through a
minimum and then increases slowly for large segments. We explain this
non-monotonic behaviour b... | 1993-12-16 | 2009-10-22 | [
"cond-mat"
] | Y.Leroyer and E.Pommiers |
cond-mat/9312067 | Coulomb Interaction and the Fermi Liquid State: Solution by Bosonization | We investigate the effects of the Coulomb two-body interaction on Fermi
liquids via bosonization. The Coulomb interaction is singular in the limit of
low momentum transfer, and recent interest in the possibility that some
singular interactions might destroy the Fermi liquid state motivate us to
reexamine it. We calcula... | 1993-12-16 | 2012-09-28 | [
"cond-mat",
"hep-th"
] | A. Houghton, H.-J. Kwon, J. B. Marston (Brown University) and R.
Shankar (Yale University) |
cond-mat/9312064 | Novel Edge Excitations of Two-dimensional Electron Liquid in a Magnetic
Field | We investigate the low-energy spectrum of excitations of a compressible
electron liquid in a strong magnetic field. These excitations are localized at
the periphery of the system. The analysis of a realistic model of a smooth edge
yields new branches of acoustic excitation spectrum in addition to the well
known edge ma... | 1993-12-16 | 2009-10-22 | [
"cond-mat"
] | I. L. Aleiner, and L. I. Glazman |
cond-mat/9312062 | Theory of spin and charge fluctuations in the Hubbard model | A self-consistent theory of both spin and charge fluctuations in the Hubbard
model is presented. It is in quantitative agreement with Monte Carlo data at
least up to intermediate coupling $(U\sim 8t)$. It includes both
short-wavelength quantum renormalization effects, and long-wavelength thermal
fluctuations which can ... | 1993-12-15 | 2009-10-22 | [
"cond-mat"
] | Y. M. Vilk, Liang Chen, and A.-M. S. Tremblay (D\'epartment de
physique and Centre de recherche en physique du solide. Universit\'e de
Sherbrooke, Sherbrooke, Qu\'ebec, Canada) |
cond-mat/9312063 | Correlations in Two-Dimensional Vortex Liquids | We report on a high temperature perturbation expansion study of the
superfluid-density spatial correlation function of a Ginzburg-Landau-model
superconducting film in a magnetic field. We have derived a closed form which
expresses the contribution to the correlation function from each graph of the
perturbation theory i... | 1993-12-15 | 2009-10-22 | [
"cond-mat"
] | Jun Hu and A. H. MacDonald (Department of Physics, Indiana University) |
cond-mat/9312061 | Multiband tight--binding approach to tunneling in semiconductor
heterostructures: Application to $\Gamma X$ transfer in GaAs | We study tunneling in semiconductor heterostructures where the constituent
materials can have a direct or indirect bandgap. In order to have a good
description of the lowest conduction band, we have used the nearest-- neighbour
$sp^3s^*$ tight--binding model put forward by P. Vogl {\em et al.}. A recursive
Green--funct... | 1993-12-15 | 2016-08-14 | [
"cond-mat"
] | J. A. St{\o}vneng and P. Lipavsk\'y |
cond-mat/9312059 | Optimizing the RVB state on a triangular lattice: Presence of the
long-range order | We present a Schwinger-boson approach for the RVB state of the spin-1/2
Heisenberg antiferromagnet on a triangular lattice. It is shown that Gutzwiller
projection of the mean-field state that includes both antiferromagnetic and
ferromagnetic decouplings leads to optimizing the RVB pair amplitudes within a
self-consiste... | 1993-12-15 | 2015-06-25 | [
"cond-mat"
] | Yong-Cong Chen |
cond-mat/9312060 | 1/z-renormalization of the mean-field behavior of the dipole-coupled
singlet-singlet system HoF_3 | The two main characteristics of the holmium ions in HoF_3 are that their
local electronic properties are dominated by two singlet states lying well
below the remaining 4f-levels, and that the classical dipole-coupling is an
order of magnitude larger than any other two-ion interactions between the
Ho-moments. This combi... | 1993-12-15 | 2009-10-22 | [
"cond-mat"
] | Jens Jensen |
cond-mat/9312051 | Nonlinear Stochastic Differential Equations and Self-Organized
Criticality | Several nonlinear stochastic differential equations have been proposed in
connection with self-organized critical phenomena. Due to the threshold
condition involved in its dynamic evolution an infinite number of
nonlinearities arises in a hydrodynamic description. We study two models with
different noise correlations w... | 1993-12-14 | 2016-11-03 | [
"cond-mat"
] | Albert Diaz-Guilera (Dept. Fisica Fonamental, Univ. Barcelona) |
cond-mat/9312055 | Predictability of Self-Organizing Systems | We study the predictability of large events in self-organizing systems. We
focus on a set of models which have been studied as analogs of earthquake
faults and fault systems, and apply methods based on techniques which are of
current interest in seismology. In all cases we find detectable correlations
between precursor... | 1993-12-14 | 2009-10-22 | [
"cond-mat"
] | S. L. Pepke (Dept. of Physics, Univ. of California, Santa Barbara) and
J. M. Carlson (Dept. of Physics, UCSB) |
cond-mat/9312056 | On the theory of the spin gap in bilayer cuprates | We formulate and solve a model of two planes of antiferromagnetically
correlated electrons coupled together by a weak antiferromagnetic interaction
of strength $\lambda$. We show that in-plane antiferromagnetic correlations
dramatically enhance the pairing effect of the interplane interaction. For the
case where the in... | 1993-12-14 | 2007-05-23 | [
"cond-mat"
] | L. B. Ioffe, A. I. Larkin, A. J. Millis, B. L. Altshuler |
cond-mat/9312053 | Accounting for both electron--lattice and electron--electron coupling in
conjugated polymers: minimum total energy calculations on the
Hubbard--Peierls hamiltonian | Minimum total energy calculations, which account for both electron--lattice
and electron--electron interactions in conjugated polymers are performed for
chains with up to eight carbon atoms. These calculations are motivated in part
by recent experimental results on the spectroscopy of polyenes and conjugated
polymers a... | 1993-12-14 | 2009-10-22 | [
"cond-mat"
] | Giuseppe Rossi (Ford Research Laboratory) |
cond-mat/9312057 | Finite-Temperature Transition into a Power-Law Spin Phase with an
Extensive Zero-Point Entropy | We introduce an $xy$ generalization of the frustrated Ising model on a
triangular lattice. The presence of continuous degrees of freedom stabilizes a
{\em finite-temperature} spin state with {\em power-law} discrete spin
correlations and an extensive zero-point entropy. In this phase, the unquenched
degrees of freedom ... | 1993-12-14 | 2009-10-22 | [
"cond-mat"
] | P. Chandra, P. Coleman and L.B. Ioffe |
cond-mat/9312054 | Simulations of deposition growth models in various dimensions. Are
overhangs important? | We present simulation results of deposition growth of surfaces in 2, 3 and 4
dimensions for ballistic deposition where overhangs are present, and for
restricted solid on solid deposition where there are no overhangs. The values
of the scaling exponents for the two models are found to be different,
suggesting that they ... | 1993-12-14 | 2009-10-22 | [
"cond-mat"
] | David Y.K. Ko and Flavio Seno |
cond-mat/9312052 | Interstitials, Vacancies, and Supersolid Order in Vortex Crystals | Interstitials and vacancies in the Abrikosov phase of clean Type II
superconductors are line imperfections, which cannot extend across macroscopic
equilibrated samples at low temperatures. We argue that the entropy associated
with line wandering nevertheless can cause these defects to proliferate at a
sharp transition ... | 1993-12-14 | 2009-10-22 | [
"cond-mat"
] | Erwin Frey, David R. Nelson, and Daniel S. Fisher |
cond-mat/9312058 | Conductivity of CuO$_3$-Chains: Disorder versus Electron-Phonon Coupling | The optical conductivity of the CuO$_3$-chains, a subsystem of the 1-2-3
materials, is dominated by a broad peak in the mid-infrared ($\omega \approx
0.2$eV), and a slowly falling high-frequency tail. The 1D $t$-$J$-model is
proposed as the relevant low-energy Hamiltonian describing the intrinsic
electronic structure o... | 1993-12-14 | 2009-10-22 | [
"cond-mat"
] | Roland Fehrenbacher |
cond-mat/9312049 | Spectral properties of the one-dimensional Hubbard model | The spectral properties of the 1-D Hubbard model are obtained from quantum
Monte Carlo simulations using the maximum entropy method. The one-particle
excitations are characterized by dispersive cosine-like bands. Velocities for
spin- and charge excitations are obtained that lead to a conformal charge
c=0.98 +/- 0.05 fo... | 1993-12-13 | 2009-10-22 | [
"cond-mat"
] | R. Preuss, A. Muramatsu, W. von der Linden, F.F. Assaad and W. Hanke |
cond-mat/9312050 | Multiple Front Propagation Into Unstable States | The dynamics of transient patterns formed by front propagation in extended
nonequilibrium systems is considered. Under certain circumstances, the state
left behind a front propagating into an unstable homogeneous state can be an
unstable periodic pattern. It is found by a numerical solution of a model of
the Fr\'eederi... | 1993-12-13 | 2015-06-25 | [
"cond-mat"
] | R. Montagne, A. Amengual, E. Hernandez-Garcia (Departament de Fisica,
Universitat de les Illes Balears, E-07071, Palma de Mallorca, Spain), and M.
San Miguel (Departament of Mathematics, University of Arizona, Tucson, AZ) |
cond-mat/9312048 | Critical behavior of an interacting monomer-dimer model | We study a monomer-dimer model with repulsive interactions between the same
species in one dimension. With infinitely strong interactions the model
exhibits a continuous transition from a reactive phase to an inactive phase
with two equivalent absorbing states. Monte Carlo simulations show that the
critical behavior is... | 1993-12-13 | 2007-05-23 | [
"cond-mat"
] | Hyunggyu Park |
cond-mat/9312047 | Vortex Motion and Vortex Friction Coefficient in Triangular Josephson
Junction Arrays | The dynamical response of triangular JJA is investigated using the RCSJ
model. A flux flow regime is found to extend between a lower vortex-depinning
current and a higher critical current, in agreement with previous calculations
for square arrays. In the flux flow regime, the dynamical response to the bias
current is r... | 1993-12-12 | 2007-05-23 | [
"cond-mat"
] | Wenbin and David G. Stroud |
cond-mat/9312046 | Anomalous low-temperature specific heat of the antiferromagnetic SU(N)
Heisenberg model in a field | We discuss the low-temperature specific heat of the integrable SU(N)-
invariant Heisenberg model in one dimension with degrees of freedom in the
symmetric rank-$m$ tensor representation, especially for the antiferromagnetic
coupling. It is known that the linear specific heat coefficient $\gam$ is a
function of a field ... | 1993-12-11 | 2007-05-23 | [
"cond-mat"
] | K. Lee |
cond-mat/9312045 | Energy Decay in Burgers Turbulence and Interface Growth. the Problem of
Random Initial Conditions - II | We present a study of the Burgers equation in one and two dimensions $d=1,2$
following the analytic approach indicated in the previous paper I. For the
problem of the initial conditions decay we consider two classes of initial
condition distributions $Q_{1,2} \sim \exp[-(1/4D)\int({\nabla}h)^2$d{\bf x}]
where $h$-field... | 1993-12-10 | 2009-10-22 | [
"cond-mat"
] | Sergei E. Esipov |
cond-mat/9312044 | Generalized Hartree-Fock Theory and the Hubbard Model | The familiar unrestricted Hartree-Fock variational principle is generalized
to include quasi-free states. As we show, these are in one-to-one
correspondence with the one-particle density matrices and these, in turn
provide a convenient formulation of a generalized Hartree-Fock variational
principle, which includes the ... | 1993-12-10 | 2009-10-22 | [
"cond-mat"
] | Volker Bach, Elliott H. Lieb and Jan philip Solovej |
cond-mat/9312039 | Orbital Magnetism in Ensembles of Ballistic Billiards | We calculate the magnetic response of ensembles of small two-dimensional
structures at finite temperatures. Using semiclassical methods and numerical
calculation we demonstrate that only short classical trajectories are relevant.
The magnetic susceptibility is enhanced in regular systems, where these
trajectories appea... | 1993-12-09 | 2007-05-23 | [
"cond-mat"
] | Denis Ullmo, Klaus Richter, and Rodolfo A. Jalabert |
cond-mat/9312038 | Spin-Wave-Spin-Wave Interaction and the Thermodynamics of the Heisenberg
Spin Chain | The low-temperature free energy of the spin S quantum Heisenberg
ferromagnetic chain in a strong magnetic field is obtained in a two-particle
approximation by using exact solution of two-spin-wave problem. The result is
beyond the perturbation theory because it incorporates the both bound and
scattering state contribut... | 1993-12-09 | 2007-05-23 | [
"cond-mat",
"hep-lat",
"hep-th"
] | Michael Teitelman |
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