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 |
|---|---|---|---|---|---|---|
cond-mat/9510082 | Cluster Monte Carlo algorithms and their applications | We review the background of the cluster algorithms in Monte Carlo simulation
of statistical physics problems. One of the first such successful algorithm was
developed by Swendsen and Wang eight years ago. In contrast to the local
algorithms, cluster algorithms update dynamical variables in a global fashion.
Therefore, ... | 1995-10-14 | 2007-05-23 | [
"cond-mat"
] | Jian-Sheng Wang (Computational Science Programme, National University
of Singapore, Singapore) |
cond-mat/9510083 | Ab initio molecular dynamics using density based energy functionals:
application to ground state geometries of some small clusters | The ground state geometries of some small clusters have been obtained via ab
initio molecular dynamical simulations by employing density based energy
functionals. The approximate kinetic energy functionals that have been employed
are the standard Thomas-Fermi $(T_{TF})$ along with the Weizsacker correction
$T_W$ and a ... | 1995-10-14 | 2009-10-28 | [
"cond-mat"
] | Dinesh Nehete, Vaishali Shah and D. G. Kanhere |
cond-mat/9510071 | Density Matrix Renormalization Group Study of the Spin 1/2 Heisenberg
Ladder with Antiferromagnetic Legs and Ferromagnetic Rungs | The ground state and low lying excitation of the spin 1/2 Heisenberg ladder
with antiferromagnetic leg ($J$) and ferromagnetic rung ($-\lambda J, \lambda
>0$) interaction is studied by means of the density matrix renormalization
group method. It is found that the state remains in the Haldane phase even for
small $\lamb... | 1995-10-13 | 2009-10-28 | [
"cond-mat"
] | Kazuo Hida |
cond-mat/9510074 | On Quantum Groups in the Hubbard Model with Phonons | The correct Hamiltonian for an extended Hubbard model with quantum group
symmetry as introduced by A. Montorsi and M. Rasetti is derived for a
D-dimensional lattice. It is shown that the superconducting SUq(2) holds as a
true quantum symmetry only for D = 1 and that terms of higher order in the
fermionic operators in a... | 1995-10-13 | 2008-11-26 | [
"cond-mat",
"hep-th",
"math.QA",
"q-alg"
] | Bianca L. Cerchiai, Peter Schupp (LMU Muenchen) |
cond-mat/9510080 | Skyrmions without Sigma Models in Quantum Hall Ferromagnets | We report on a microscopic theory of the Skyrmion states which occur in the
quantum Hall regime. The theory is based on the identification of Skyrmion
states in this system with zero-energy eigenstates of a hard-core model
Hamiltonian. We find that for $N_{\phi}$ orbital states in a Landau level, a
set of Skyrmions sta... | 1995-10-13 | 2009-10-28 | [
"cond-mat"
] | A.H. MacDonald, H.A. Fertig, and Luis Brey |
cond-mat/9510075 | One-dimensional fermi liquid and symmetry breaking in the vortex core | Fermions localized within vortex cores can form one-dimensional Fermi
liquids. The nonzero density of states in these Fermi-liquids can lead to
instability of the symmetric structure of the vortex core. We consider a
symmetry breaking which is obtained due to spontaneous admixture of the
spin-triplet p-wave component o... | 1995-10-13 | 2007-05-23 | [
"cond-mat",
"hep-th"
] | Yu.G. Makhlin, G.E. Volovik (Low Temperature Laboratory, Helsinki
University of Technology, Espoo, Finland and L.D. Landau Institute for
Theoretical Physics, Moscow, Russia) |
cond-mat/9510069 | Critical Properties of the XXZ chain in External Staggered Magnetic
Field | We comment on the recent work of Alcaraz and Malvezzi [1995 {\it J. Phys. A:
Math. Gen.} {\bf 19} 1521] for the critical properties of the $S=1/2$ $XXZ$
chain in staggered magnetic field. The method of determining the phase boundary
from the finite-size numerical data is also discussed. | 1995-10-13 | 2016-08-31 | [
"cond-mat"
] | Kiyomi Okamoto and Kiyohide Nomura |
cond-mat/9510081 | Suppression of Cross-Field Transport of a Passive Scalar in
Two-Dimensional Magnetohydrodynamic Turbulence | The theory of passive scalar transport in two dimensional turbulent fluids is
generalized to the case of 2D MHD. Invariance of the cross correlation of
scalar concentration and magnetic potential produces a novel contribution to
the concentration flux. This pinch effect is proportional to the mean potential
gradient, a... | 1995-10-13 | 2016-08-31 | [
"cond-mat"
] | P.H. Diamond and A.V. Gruzinov (Department of Physics 0319, University
of California, San Diego, La Jolla, CA, USA) |
cond-mat/9510072 | Modified Spin Wave Thoery of the Bilayer Square Lattice Frustrated
Quantum Heisenberg Antiferromagnet | The ground state of the square lattice bilayer quantum antiferromagnet with
nearest and next-nearest neighbour intralayer interaction is studied by means
of the modified spin wave method. For weak interlayer coupling, the ground
state is found to be always magnetically ordered while the quantum disordered
phase appear ... | 1995-10-13 | 2009-10-28 | [
"cond-mat"
] | Kazuo Hida |
cond-mat/9510079 | Phase space geometry and slow dynamics | We describe a non-Arrhenius mechanism for slowing down of dynamics that is
inherent to the high dimensionality of the phase space. We show that such a
mechanism is at work both in a family of mean-field spin-glass models without
any domain structure and in the case of ferromagnetic domain growth. The
marginality of spi... | 1995-10-13 | 2016-08-31 | [
"cond-mat",
"adap-org",
"nlin.AO"
] | Jorge Kurchan and Laurent Laloux |
cond-mat/9510076 | Reentrant Phase Diagram of Two-Dimensional Electron Gas | We study the phase diagram of an electron on a square lattice in a transverse
magnetic field. Using a renormalization scheme, we show that the inequality of
the two next-nearest neighbor couplings destroys the fat critical regime above
the bicritical line and replaces it with another reentrant extended phase.
Furthermo... | 1995-10-13 | 2007-05-23 | [
"cond-mat"
] | Jukka A. Ketoja and Indubala I. Satija |
cond-mat/9510078 | Universal Short-Time Dynamics in the Kosterlitz-Thouless Phase | We study the short-time dynamics of systems that develop ``quasi long-range
order'' after a quench to the Kosterlitz-Thouless phase. With the working
hypothesis that the ``universal short-time behavior'', previously found in
Ising-like systems, also occurs in the Kosterlitz-Thouless phase, we explore
the scaling behavi... | 1995-10-13 | 2009-10-28 | [
"cond-mat",
"adap-org",
"nlin.AO"
] | P. Czerner and U. Ritschel |
cond-mat/9510073 | Spinodal decomposition in fluids: diffusive, viscous and inertial
regimes | Using a Langevin description of spinodal decomposition in fluids, we examine
domain growth in the diffusive, viscous and inertial regimes. In the framework
of this model, numerical results corroborate earlier theoretical predictions
based on scaling arguments and dimensional analysis. | 1995-10-13 | 2009-10-28 | [
"cond-mat"
] | Turab Lookman, Yanan Wu (University of Western Ontario), Francis
Alexander (Boston University) and Shiyi Chen (IBM Research Division, T.J.
Watson Research Center) |
cond-mat/9510070 | Plateau of the Magnetization Curve of the S=1/2
Ferromagnetic-Ferromagnetic-Antiferromagnetic Spin Chain | I analytically study the plateau of the magnetization curve at $M/M_{\rm S} =
1/3$ (where $M_{\rm S}$ is the saturation magnetization) of the one-dimensional
$S=1/2$ trimerized Heisenberg spin system with ferromagnetic ($J_{\rm
F}$)-ferromagnetic ($J_{\rm F}$)-antiferromagnetic ($J_{\rm A}$) interactions
at $T=0$. I us... | 1995-10-13 | 2009-10-28 | [
"cond-mat"
] | Kiyomi Okamoto |
cond-mat/9510077 | Dynamical Relaxation and Universal Short-Time Behavior in Finite
Systems: The Renormalization Group Approach | We study how the finite-sized n-component model A with periodic boundary
conditions relaxes near its bulk critical point from an initial nonequilibrium
state with short-range correlations. Particular attention is paid to the
universal long-time traces that the initial condition leaves. An approach based
on renormalizat... | 1995-10-13 | 2009-10-28 | [
"cond-mat"
] | U. Ritschel and H. W. Diehl |
cond-mat/9510058 | Sliding Friction in the Frenkel-Kontorova Model | A two-dimensional \underline{Frenkel-Kontorova model} under a steady external
force is used to study the nonlinear sliding friction between flat macroscopic
surfaces with a lubricant layer in between. The nonequilibrium properties of
the model are simulated by a Brownian molecular dynamics and results are
obtained as a... | 1995-10-12 | 2007-05-23 | [
"cond-mat",
"mtrl-th"
] | E. Granato, M.R. Baldan and S.C. Ying |
cond-mat/9510063 | Nonequilibrium Effects and Self Heating in Single Electron Coulomb
Blockade Devices | We present a comprehensive investigation of nonequilibrium effects and self
heating in single electron transfer devices based primarily on the Coulomb
blockade effect. During an electron trapping process, a hot electron may be
deposited in a quantum dot or metal island, with an extra energy usually on the
order of the ... | 1995-10-12 | 2008-02-03 | [
"cond-mat"
] | Chiu Liu and Qian Niu |
cond-mat/9510066 | Floating of Extended States and Localization Transition in a Weak
Magnetic Field | We report results of a numerical study of non-interacting electrons moving in
a random potential in two dimensions in the presence of a weak perpendicular
magnetic field. We study the topological properties of the electronic
eigenstates within a tight binding model. We find that in the weak magnetic
field or strong ran... | 1995-10-12 | 2009-10-28 | [
"cond-mat"
] | Kun Yang and R. N. Bhatt (Dept. of E. E., Princeton Univ.) |
cond-mat/9510064 | Spinons, Solitons and Magnons in One-dimensional Heisenberg-Ising
Antiferromagnets | We calculate the excitation spectra for the one-$d$ Heisenberg-Ising
antiferromagnets by expansions around the Ising limit. For $S=1/2$, the
calculated expansion coefficients for the spinon-spectra agree term by term
with the solution of Johnson and McCoy. For $S=1$, the solitons become gapless
before the Heisenberg li... | 1995-10-12 | 2009-10-28 | [
"cond-mat"
] | Rajiv R. P. Singh |
cond-mat/9510065 | Aspects of ${}^3$He and the Standard Electroweak Model | We describe certain aspects of ${}^3He$ and compare them to related aspects
of the standard electroweak model of particle physics. We note various
similarities in the order parameter structure, defect structure, interactions
with fermions and anomalies in the two systems. Many issues in the condensed
matter literature ... | 1995-10-12 | 2015-06-25 | [
"cond-mat",
"hep-ph",
"hep-th"
] | G.E. Volovik and Tanmay Vachaspati |
cond-mat/9510067 | Conductance Anomalies for Normal-Metal-Insulator-Superconductor Contacts | This paper considers the conductance through a dirty junction between a
normal conductor and a superconductor with an insulating barrier. It is shown
that for large barrier resistances there is a relative enhancement of the
conductance near zero voltage, whereas for low barrier resistance this anomaly
appears at finite... | 1995-10-12 | 2009-10-28 | [
"cond-mat"
] | Sungkit Yip (Northwestern University) |
cond-mat/9510059 | One-dimensional Josephson arrays as superlattices for single Cooper
pairs | We investigate uniform one-dimensional arrays of small Josephson junctions
($E_J \ll E_C$, $E_C = (2e)^2/2C$) with a realistic Coulomb interaction $U(x) =
E_C \lambda \exp( - |x|/\lambda)$ (here $\lambda \gg 1$ is the screening length
in units of the lattice constant of the array). At low energies this system can
be de... | 1995-10-12 | 2016-08-31 | [
"cond-mat"
] | A. A. Odintsov |
cond-mat/9510068 | Probability of phase separation for the Bose gas with delta interactions | We consider the quantum Non-linear Schr\"{o}dinger equation
$i\partial_t\Psi=-\partial_x^2\Psi +2c\Psi^\dagger\Psi^2$ with positive
coupling constant $c$ varying from zero to infinity. We study quantum
correlation functions of this model using the determinant representation of
these correlation functions. We consider t... | 1995-10-12 | 2007-05-23 | [
"cond-mat"
] | V. Korepin, A. Its and A. Waldron |
cond-mat/9510060 | Casimir Forces between Spherical Particles in a Critical Fluid and
Conformal Invariance | Mesoscopic particles immersed in a critical fluid experience long-range
Casimir forces due to critical fluctuations. Using field theoretical methods,
we investigate the Casimir interaction between two spherical particles and
between a single particle and a planar boundary of the fluid. We exploit the
conformal symmetry... | 1995-10-12 | 2009-10-28 | [
"cond-mat"
] | E. Eisenriegler and U. Ritschel |
cond-mat/9510062 | Magnetic impurity coupled to interacting conduction electrons | We consider a magnetic impurity which interacts by hybridization with a
system of weakly correlated electrons and determine the energy of the ground
state by means of an 1/N_f expansion. The correlations among the conduction
electrons are described by a Hubbard Hamiltonian and are treated to lowest
order in the interac... | 1995-10-12 | 2009-10-28 | [
"cond-mat"
] | Tom Schork |
cond-mat/9510061 | Schr\"odinger operators generated by substitutions | Schr\"odinger operators with potentials generated by primitive substitutions
are simple models for one dimensional quasi-crystals. We review recent results
on their spectral properties. These include in particular an algorithmically
verifiable sufficient condition for their spectrum to be singular continuous
and suppor... | 1995-10-12 | 2007-05-23 | [
"cond-mat"
] | Anton Bovier, J.-M. Ghez |
cond-mat/9510057 | Universal Short-Time Behavior in Critical Dynamics near Surfaces | We study the time evolution of classical spin systems with purely
relaxational dynamics, quenched from T >> T_c to the critical point, in the
semi-infinite geometry. Shortly after the quench, like in the bulk, a
nonequilibrium regime governed by universal power laws is also found near the
surface. We show for `ordinary... | 1995-10-12 | 2009-10-28 | [
"cond-mat"
] | U. Ritschel and P. Czerner |
cond-mat/9510054 | Underpotential deposition of Cu on Au(111) in sulfate-containing
electrolytes: a theoretical and experimental study | We study the underpotential deposition of Cu on single-crystal Au(111)
electrodes in sulfate-containing electrolytes by a combination of computational
statistical-mechanics based lattice-gas modeling and experiments. The
experimental methods are in situ cyclic voltammetry and coulometry and ex situ
Auger electron spect... | 1995-10-11 | 2009-10-28 | [
"cond-mat",
"chem-ph",
"mtrl-th"
] | Jun Zhang, Yung-Eun Sung, P.A. Rikvold and A. Wieckowski |
cond-mat/9510052 | Transitions toward Quantum Chaos: with Supersymmetry from Poisson to
Gauss | The transition from arbitrary to chaotic fluctuation properties in quantum
systems is studied in a random matrix model. It is assumed that the Hamiltonian
can be written as the sum of an arbitrary and a chaos producing part. The
Gaussian ensembles are used to model the chaotic part. A closed integral
representation for... | 1995-10-11 | 2009-10-28 | [
"cond-mat"
] | T. Guhr (MPI Heidelberg) |
cond-mat/9510055 | A unified framework for the Kondo problem and for an impurity in a
Luttinger liquid | We develop a unified theoretical framework for the anisotropic Kondo model
and the boundary sine-Gordon model. They are both boundary integrable quantum
field theories with a quantum-group spin at the boundary which takes values,
respectively, in standard or cyclic representations of the quantum group
$SU(2)_q$. This u... | 1995-10-11 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | P. Fendley, F. Lesage and H. Saleur |
cond-mat/9510047 | On Emery-Kivelson line and universality of Wilson ratio of spin
anisotropic Kondo model | Yuval-Anderson's scaling analysis and Affleck-Ludwig's Conformal Field Theory
approach are applied to the $k$ channel {\em spin anisotropic} Kondo model.
Detailed comparisons with the available Emery-Kivelson's Abelian Bosonization
approaches are made. It is shown that the EK line exists for any $k$, although
it can be... | 1995-10-11 | 2016-08-31 | [
"cond-mat"
] | Jinwu Ye (Physics Lab. Harvard Univ.) |
cond-mat/9510056 | Diffusion with critically correlated traps and the slow relaxation of
the longest wavelength mode | We study diffusion on a substrate with permanent traps distributed with
critical positional correlation, modeled by their placement on the perimeters
of a critical percolation cluster. We perform a numerical analysis of the
vibrational density of states and the largest eigenvalue of the equivalent
scalar elasticity pro... | 1995-10-11 | 2009-10-28 | [
"cond-mat"
] | Sonali Mukherjee and Hisao Nakanishi |
cond-mat/9510051 | Tricritical universality in a two-dimensional spin fluid | Monte Carlo simulations are used to investigate the tricritical point
properties of a 2d spin fluid. Measurements of the scaling operator
distributions are employed in conjunction with a finite-size scaling analysis
to locate the tricritical point and determine the directions of the relevant
scaling fields and their as... | 1995-10-11 | 2009-10-28 | [
"cond-mat"
] | N.B. Wilding and P. Nielaba |
cond-mat/9510053 | Fluctuation Kinetics in a Multispecies Reaction-Diffusion System | We study fluctuation effects in a two species reaction-diffusion system, with
three competing reactions $A+A\rightarrow\emptyset$, $B+B\rightarrow\emptyset$,
and $A+B\rightarrow\emptyset$. Asymptotic density decay rates are calculated
for $d\leq 2$ using two separate methods - the Smoluchowski approximation, and
also f... | 1995-10-11 | 2009-10-28 | [
"cond-mat"
] | Martin Howard |
cond-mat/9510049 | Spin Gap in Two-Dimensional Heisenberg Model for CaV$_4$O$_9$ | We investigate the mechanism of spin gap formation in a two-dimensional model
relevant to Mott insulators such as CaV$_4$O$_9$. From the perturbation
expansion and quantum Monte Carlo calculations, the origin of the spin gap is
ascribed to the four-site plaquette singlet in contrast to the dimer gap
established in the ... | 1995-10-11 | 2009-10-28 | [
"cond-mat"
] | Nobuyuki Katoh and Masatoshi Imada |
cond-mat/9510050 | Layer Features of the Lattice Gas Model for Self-Organized Criticality | A layer-by-layer description of the asymmetric lattice gas model for
1/f-noise suggested by Jensen [Phys. Rev. Lett. 64, 3103 (1990)] is presented.
The power spectra of the lattice layers in the direction perpendicular to the
particle flux is studied in order to understand how the white noise at the
input boundary evol... | 1995-10-11 | 2009-10-28 | [
"cond-mat"
] | N.C. Pesheva, J.G. Brankov, E. Canessa |
cond-mat/9510045 | Measurement of the Far Infrared Magneto-Conductivity Tensor of
Superconducting YBa$_2$Cu$_3$O$_{7-\delta }$ Thin Films | We report measurements of the far infrared transmission of superconducting
YBa$_2$Cu$_3$O$_{7-\delta }$ thin films from 5 cm$^{-1}$ to 200 cm$^{-1}$ in
fields up to 14$T$. A Kramers-Kronig analysis of the magneto-transmission
spectrum yields the magneto-conductivity tensor. The result shows that the
magneto-conductivit... | 1995-10-10 | 2009-10-28 | [
"cond-mat"
] | H.-T. S. Lihn, S. Wu, S. Kaplan, H. D. Drew |
cond-mat/9510046 | Turning Bosons into Fermions: Exclusion Statistics, Fractional
Statistics and the Simple Harmonic Oscillator | Motivated by Haldane's exclusion statistics, we construct creation and
annihilation operators for $g$-ons using a bosonic algebra. We find that
$g$-ons appear due to the breaking of a descrete symmetry of the original
bosonic system. This symmetry is intimately related to the braid group and we
demonstrate a link betwe... | 1995-10-10 | 2008-11-26 | [
"cond-mat",
"hep-th",
"math.QA",
"q-alg",
"quant-ph"
] | A. D. Speliotopoulos |
cond-mat/9510044 | Electron--electron scattering in linear transport in two-dimensional
systems | We describe a method for numerically incorporating electron--electron
scattering in quantum wells for small deviations of the distribution function
from equilibrium, within the framework of the Boltzmann equation. For a given
temperature $T$ and density $n$, a symmetric matrix needs to be evaluated only
once, and hence... | 1995-10-10 | 2009-10-28 | [
"cond-mat"
] | Ben Yu-Kuang Hu (MIC) and Karsten Flensberg (MIC,DFM) |
cond-mat/9510043 | Drag in paired electron-hole layers | We investigate transresistance effects in electron-hole double layer systems
with an excitonic condensate. Our theory is based on the use of a minimum
dissipation premise to fix the current carried by the condensate. We find that
the drag resistance jumps discontinuously at the condensation temperature and
diverges as ... | 1995-10-10 | 2009-10-28 | [
"cond-mat"
] | Giovanni Vignale and A. H. MacDonald |
cond-mat/9510048 | Destruction of Peierls dimerization in the molecular crystal model:
Effects of quantum phonon fluctuations | Effects of quantum phonon fluctuations on the Peierls dimerization in the
one-dimensional molecular crystal model are reexamined by a functional integral
approach. An equation for the dimerization order parameter is obtained within a
one-loop approximation. The destruction of Peierls dimerization is found by
taking the... | 1995-10-09 | 2009-10-28 | [
"cond-mat"
] | C.Q. Wu, Q.F. Huang, and X. Sun |
cond-mat/9510041 | On the Theory of Superfluidity in Two Dimensions | The superfluid phase transition of the general vortex gas, in which the
circulations may be any non-zero integer, is studied. When the net circulation
of the system is not zero the absence of a superfluid phase is shown. When the
net circulation of the vortices vanishes, the presence of off-diagonal long
range order is... | 1995-10-09 | 2015-06-25 | [
"cond-mat"
] | Achilles D. Speliotopoulos and Harry L. Morrison |
cond-mat/9510040 | Geometrical-confinement effects on excitons in quantum disks | Excitons confined to flat semiconductor quantum dots with elliptical cross
section are considered as we study geometrical effects on exciton binding
energy, electron-hole separation, and the resulting linear optical properties.
We use numerical matrix diagonalization techniques with appropriately large and
optimized ba... | 1995-10-09 | 2009-10-28 | [
"cond-mat"
] | Jakyoung Song and Sergio E. Ulloa (Ohio University) |
cond-mat/9510042 | Extension of Fixed-Node Monte Carlo for Lattice Fermions | In a previous paper, we have described a method to perform Fixed-Node Quantum
Monte Carlo calculations for lattice fermions. In this paper, we present an
extension of this method, by which it is possible to find information on the
properties of the exact ground-state wave function. We give some further
illustrations of... | 1995-10-09 | 2007-05-23 | [
"cond-mat"
] | D.F.B. ten Haaf and J.M.J. van Leeuwen |
cond-mat/9510039 | Quantum Monte Carlo Study of the Hubbard Ladder | We present quantum Monte Carlo results for the Hubbard model on a ladder
using the re-structuring method which employ eigenstates of two-site system on
a rung to construct a complete set. From technical reasons we concentrate on
the case in which the hopping along the leg is much less than the hopping on
the rung. We o... | 1995-10-08 | 2007-05-23 | [
"cond-mat"
] | Yasuko Munehisa (Yamanashi University) |
cond-mat/9510038 | Columnar defects and vortex fluctuations in layered superconductors | We investigate fluctuations of Josephson-coupled pancake vortices in layered
superconductors in the presence of columnar defects. We study the
thermodynamics of a single pancake stack pinned by columnar defects and obtain
the temperature dependence of localization length, pinning energy and critical
current. We study t... | 1995-10-07 | 2009-10-28 | [
"cond-mat"
] | Alexis E. Koshelev and Pierre Le Doussal and Valerii M. Vinokur |
cond-mat/9510037 | Ground State and Excited States of a Confined Bose Gas | The Bogoliubov approximation is used to study the ground state and low-lying
excited states of a dilute gas of $N$ atomic bosons held in an isotropic
harmonic potential characterized by frequency $\omega$ and oscillator length
$d_0$. By assumption, the self-consistent condensate has a macroscopic
occupation number $N_0... | 1995-10-06 | 2016-08-31 | [
"cond-mat"
] | Alexander L. Fetter (Stanford University) |
cond-mat/9510031 | Universality class of non-Fermi liquid behavior in mixed valence systems | A generalized Anderson single-impurity model with off-site Coulomb
interactions is derived from the extended three-band Hubbard model, originally
proposed to describe the physics of the copper-oxides. Using the abelian
bosonization technique and canonical transformations, an effective Hamiltonian
is derived in the stro... | 1995-10-06 | 2009-10-28 | [
"cond-mat"
] | Guang-Ming Zhang, Zhao-Bin Su, and Lu Yu |
cond-mat/9510030 | A Possible Phononic Mechanism for $d_{x^2 - y^2}$-Superconductivity in
the Presence of Short-Range AF Correlations | We discuss the high temperature superconductors in a regime where the
antiferromagnetic (AF) correlation length is only a couple of lattice spacings.
In the model proposed here, these short-range AF fluctuations play an essential
role in the dressing of the carriers, but the attraction needed for
superconductivity (SC)... | 1995-10-06 | 2009-10-28 | [
"cond-mat"
] | Alexander Nazarenko and Elbio Dagotto (NHMFL/FSU) |
cond-mat/9510035 | Rank-Ordering Statistics of Extreme Events: Application to the
Distribution of Large Earthquakes | Rank-ordering statistics provides a perspective on the rare, largest elements
of a population, whereas the statistics of cumulative distributions are
dominated by the more numerous small events. The exponent of a power law
distribution can be determined with good accuracy by rank-ordering statistics
from the observatio... | 1995-10-06 | 2015-06-25 | [
"cond-mat"
] | Didier Sornette, Leon Knopoff, Yan Kagan, Christian Vanneste |
cond-mat/9510032 | Faults Self-Organized by Repeated Earthquakes in a Quasi-Static
Antiplane Crack Model | We study a 2D quasi-static discrete {\it crack} anti-plane model of a
tectonic plate with long range elastic forces and quenched disorder. The plate
is driven at its border and the load is transfered to all elements through
elastic forces. This model can be considered as belonging to the class of
self-organized models ... | 1995-10-06 | 2020-01-29 | [
"cond-mat"
] | Didier Sornette, Christian Vanneste |
cond-mat/9510033 | Anomalous flux quantization in a Hubbard ring with correlated hopping | We solve exactly a generalized Hubbard ring with twisted boundary conditions.
The magnitude of the nearest-neighbor hopping depends on the occupations of the
sites involved and the term which modifies the number of doubly occupied sites
$t_{AB}=0$. Although $\eta$-pairing states with off-diagonal long-range order
are p... | 1995-10-06 | 2016-08-15 | [
"cond-mat"
] | Liliana Arrachea, A. A. Aligia and E. Gagliano (Centro At\'omico
Bariloche, Argentina) |
cond-mat/9509160 | Magnetic excitations and effects of magnetic fields on the spin-Peierls
transition in CuGeO$_3$ | We analyze the magnetic excitations of a spin-1/2 antiferromagnetic
Heisenberg model with alternating nearest neighbor interactions and uniform
second neighbor interactions recently proposed to describe the spin-Peierls
transition in CuGeO$_3$. We show that there is good agreement between the
calculated excitation disp... | 1995-10-06 | 2009-10-28 | [
"cond-mat"
] | Jose Riera and Sergio Koval |
cond-mat/9510034 | Van Hove Exciton-Cageons and High-T$_c$ Superconductivity: XB: Polaronic
Coupling in the Doped Material | A purely ionic interpretation of the tilting mode instabilities in
La$_{2-x}$A$ _x$CuO$_4$ (A=Sr,Ba) is shown to be not self-consistent: the
dominant factor influencing the doping dependence of the interlayer mismatch is
the large change in the Cu-O bond length, which in turn leads to a strong
electron-phonon coupling.... | 1995-10-06 | 2009-10-28 | [
"cond-mat"
] | R.S. Markiewicz, (Northeastern University) |
cond-mat/9510036 | Stock market crashes, Precursors and Replicas | We present an analysis of the time behavior of the $S\&P500$ (Standard and
Poors) New York stock exchange index before and after the October 1987 market
crash and identify precursory patterns as well as aftershock signatures and
characteristic oscillations of relaxation. Combined, they all suggest a picture
of a kind o... | 1995-10-06 | 2009-10-28 | [
"cond-mat"
] | Didier Sornette, Anders Johansen, Jean-Philippe Bouchaud |
cond-mat/9510024 | Off-Equilibrium Dynamics of 1+1 dimensional Directed Polymer in Random
Media | The relaxational dynamics of 1+1 dimensional directed polymer in random
potential is studied by Monte Carlo simulation. A series of temperature quench
experiments is performed changing waiting times. Clear crossover from
quasi-equilibrium behavior to off-equilibrium behavior appears in the dynamical
overlap function wh... | 1995-10-05 | 2009-10-28 | [
"cond-mat"
] | Hajime Yoshino |
cond-mat/9510029 | On Synchronization in a Lattice Model of Pulse-Coupled Oscillators | We analyze the collective behavior of a lattice model of pulse-coupled
oscillators. By means of computer simulations we find the relation between the
intrinsic dynamics of each member of the population and their mutual
interaction that ensures, in a general context, the existence of a fully
synchronized regime. This co... | 1995-10-05 | 2009-10-28 | [
"cond-mat",
"adap-org",
"nlin.AO"
] | Alvaro Corral, Conrad J. Perez, Albert Diaz-Guilera, and Alex Arenas |
cond-mat/9510027 | A Numerical Study of the Random Transverse-Field Ising Spin Chain | We study numerically the critical region and the disordered phase of the
random transverse-field Ising chain. By using a mapping of Lieb, Schultz and
Mattis to non-interacting fermions, we can obtain a numerically exact solution
for rather large system sizes, $L \le 128$. Our results confirm the striking
predictions of... | 1995-10-05 | 2009-10-28 | [
"cond-mat"
] | A. P. Young and H. Rieger |
cond-mat/9510025 | Theory of Cylindrical Tubules and Helical Ribbons of Chiral Lipid
Membranes | We present a general theory for the equilibrium structure of cylindrical
tubules and helical ribbons of chiral lipid membranes. This theory is based on
a continuum elastic free energy that permits variations in the direction of
molecular tilt and in the curvature of the membrane. The theory shows that the
formation of ... | 1995-10-05 | 2009-10-28 | [
"cond-mat"
] | J.V. Selinger (Naval Research Laboratory), F.C. MacKintosh (University
of Michigan), and J.M. Schnur (Naval Research Laboratory) |
cond-mat/9510023 | The Statistical Distributions of Level Widths and Conductance Peaks in
Irregularly Shaped Quantum Dots | Analytical expressions for width and conductance peak distributions for
quantum dots with multi-channel leads in the Coulomb blockade regime are
presented for both limits of conserved and broken time-reversal symmetry. The
results are valid for any number of non-equivalent and correlated channels, and
the distributions... | 1995-10-05 | 2009-10-28 | [
"cond-mat"
] | Y. Alhassid and C.H. Lewenkopf |
cond-mat/9510026 | Collective modes in the electronic polarization of double-layer systems
in the superconducting state | Standard weak coupling methods are used to study collective modes in the
superconducting state of a double-layer system with intralayer and interlayer
interaction, as well as a Josephson-type coupling and single particle hopping
between the layers by calculating the electronic polarization function
perpendicular to the... | 1995-10-05 | 2009-10-28 | [
"cond-mat"
] | F. Forsthofer, S. Kind, J. Keller |
cond-mat/9510020 | The Two-dimensional Nonlinear Burridge-Knopoff Model of Earthquakes | We present a two-dimensional spring-block model of earthquakes with the full
nonlinear equations for the forces in terms of displacements. Correspondence of
our linearized version to earlier models reveals in them inherently asymmetric
elastic properties. Our model generalizes those models and allows an
investigation o... | 1995-10-04 | 2008-02-03 | [
"cond-mat"
] | Kwan-tai Leung, Judith M\"uller and J{\o}rgen Vitting Andersen |
cond-mat/9510019 | On the kinks and dynamical phase transitions of alpha-helix protein
chains | Heuristic insights into a physical picture of Davydov's solitonic model of
the one-dimensional protein chain are presented supporting the idea of a
non-equilibrium competition between the Davydov phase and a complementary,
dynamical- `ferroelectric' phase along the chain | 1995-10-04 | 2009-10-28 | [
"cond-mat",
"q-bio"
] | H.C. Rosu |
cond-mat/9510022 | Spectral Properties and Bandstructure of Correlated Electron Systems | We present $\vec{k}$-dependent one-particle spectra and corresponding
effective bandstructures for the $2d$ Hubbard model calculated within the
dynamical molecular field theory (DMFT). This method has proven to yield highly
nontrivial results for a variety of quantities but the question remains open to
what extent it i... | 1995-10-04 | 2016-08-31 | [
"cond-mat"
] | Th. Pruschke, Th. Obermeier, J. Keller and M. Jarrell |
cond-mat/9510021 | Thermodynamics of Quantum Hall Ferromagnets | The two-dimensional interacting electron gas at Landau level filling factor
$\nu =1$ and temperature $T=0$ is a strong ferromagnet; all spins are
completely aligned by arbitrarily weak Zeeman coupling. We report on a
theoretical study of its thermodynamic properties using a many-body
perturbation theory approach and co... | 1995-10-04 | 2009-10-28 | [
"cond-mat"
] | Marcus Kasner, A. H. MacDonald (Dept. of Physics, Indiana University,
Bloomington) |
cond-mat/9510013 | Orthorhombically Mixed s and d$_{x^2-y^2}$ Wave Superconductivity and
Josephson Tunneling | The effect of orthorhombicity on Josephson tunneling in high T$_c$
superconductors such as YBCO is studied for both single crystals and highly
twinned crystals. It is shown that experiments on highly twinned crystals
experimentally determine the symmetry of the superconducting twin boundaries
(which can be either even ... | 1995-10-03 | 2009-10-28 | [
"cond-mat"
] | M.B. Walker |
cond-mat/9510012 | Random Matrix Model and the Calogero-Sutherland Model: A Novel
Current-Density Mapping | We investigate the relation between the invariant correlators of random
matrix theory and correlators of the integrable one-dimensional systems.
Starting from the relation between correlators for the coupling strengths
$\lambda =1/ 2$, $1$, and $2$, we explore the local current-density mapping
applicable to arbitrary $... | 1995-10-03 | 2009-10-28 | [
"cond-mat"
] | N. Taniguchi, B. S. Shastry and B. L. Altshuler |
cond-mat/9510016 | Two-dimensional Fokker-Planck solutions and Grassmann variables | After a short outline of the factorization and Grassmann picture of the
one-dimensional (1D) Fokker-Planck (FP) equation, we consider a class of
spatially-inhomogeneous solutions of the 2D FP equation with symmetric 2D
(super)potentials. We show that the spatial inhomogeneities of that class of
solutions can be attribu... | 1995-10-03 | 2009-10-28 | [
"cond-mat"
] | H.C. Rosu, J. Socorro, and O. Obreg\'on |
cond-mat/9510017 | Pair Tunneling in Semiconductor Quantum Dots | We propose here a model for the pair tunneling states observed by Ashoori and
co-workers (Phys. Rev. Lett. {\bf 68}, 3088 (1992)) in GaAs quantum dots. We
show that while GaAs is a weakly-polar semiconductor, coupling to optical
phonons is sufficiently strong to mediate a negative-U pairing state. The
physical potentia... | 1995-10-03 | 2009-10-28 | [
"cond-mat"
] | Yi Wan, Gerardo Ortiz, and Philip Phillips |
cond-mat/9510018 | Electron-Electron Interaction in Linear Arrays of Small Tunnel Junctions | We have calculated the spatial distribution of the electrostatic potential
created by an unbalanced charge $q$ in one of the conducting electrodes of a
long, uniform, linear array of small tunnel junctions. The distribution
describes, in particular, the shape of a topological single-electron soliton in
such an array. A... | 1995-10-03 | 2009-10-28 | [
"cond-mat"
] | K. K. Likharev and K. A. Matsuoka |
cond-mat/9510015 | Theory of the Normal State of Cuprate Superconducting Materials | We have proposed a model Hamiltonian, which describes a simple physical
picture that the holes with single occupation constraint introduced by doping
move in the antiferromagnetic background of the copper spins, to describe the
normal state of the cuprate superconducting materials, and used the
renormalization group me... | 1995-10-03 | 2009-10-28 | [
"cond-mat"
] | Yu-Liang Liu (International Centre for Theoretical Physics, Italy) |
cond-mat/9510009 | Phase Transition in the Three-Dimensional $\pm J$ Ising Spin Glass | We have studied the three-dimensional Ising spin glass with a $\pm J$
distribution by Monte Carlo simulations. Using larger sizes and much better
statistics than in earlier work, a finite size scaling analysis shows quite
strong evidence for a finite transition temperature, $T_c$, with ordering below
$T_c$. Our estimat... | 1995-10-02 | 2009-10-28 | [
"cond-mat"
] | N. Kawashima, A. P. Young |
cond-mat/9510007 | Fractal Conductance Fluctuations in Generic Chaotic Cavities | It is shown that conductance fluctuations due to phase coherent ballistic
transport through a chaotic cavity generically are fractals. The graph of
conductance vs. externally changed parameter, e.g. magnetic field, is a fractal
with dimension D=2-b/2 between 1 and 2. It is governed by the exponent b (<2)
of the power l... | 1995-10-02 | 2009-10-28 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | Roland Ketzmerick |
cond-mat/9510003 | A new approach for perovskites in large dimensions | Using the Hubbard Hamiltonian for transition metal-3d and oxygen-2p states
with perovskite geometry, we propose a new scaling procedure for a nontrivial
extension of these systems to large spatial dimensions $D$. The scaling
procedure is based on a selective treatment of different hopping processes for
large $D$ and ca... | 1995-10-02 | 2009-10-28 | [
"cond-mat"
] | J. Schmalian, P. Lombardo, M. Avignon, and K.- H. Bennemann |
cond-mat/9510011 | Some properties of membranes in nematic solvents | The fluctuation spectrum of membranes in nematic solvents is altered by the
boundary condition imposed on the bulk nematic director by the curved membrane.
We discuss some properties of single and multi-membrane systems in nematic
solvents, primarily based on the Berreman-de~Gennes model. We show that:
membranes in nem... | 1995-10-02 | 2009-10-28 | [
"cond-mat"
] | Peter D. Olmsted (U. of Michigan, Ann Arbor) and Eugene M. Terentjev
(Cavendish Laboratory, Cambridge) |
cond-mat/9510010 | Dislocation Mediated Melting Near Isostructural Critical Points | We study the interplay between an isostructural critical point and
dislocation mediated two-dimensional melting, using a combination of Landau and
continuum elasticity theory. If dislocations are excluded, coupling to the
elastic degrees of freedom leads to mean field critical exponents. When
dislocations are allowed, ... | 1995-10-02 | 2009-10-28 | [
"cond-mat",
"chem-ph",
"mtrl-th"
] | T. Chou and D. R. Nelson |
cond-mat/9510008 | Composite Fermion Description of Correlated Electrons in Quantum Dots:
Low Zeeman Energy Limit | We study the applicability of composite fermion theory to electrons in
two-dimensional parabolically-confined quantum dots in a strong perpendicular
magnetic field in the limit of low Zeeman energy. The non-interacting composite
fermion spectrum correctly specifies the primary features of this system.
Additional featur... | 1995-10-02 | 2009-10-28 | [
"cond-mat"
] | R.K. Kamilla and J.K. Jain (Department of Physics, State University of
New York at Stony Brook, Stony Brook, New York) |
cond-mat/9510002 | Theory of random matrices with strong level confinement | Unitary ensembles of large N x N random matrices with a non-Gaussian
probability distribution P[H] ~ exp{-TrV[H]} are studied using a theory of
polynomials orthogonal with respect to exponential weights. Asymptotically
exact expressions for density of levels, one- and two-point Green's functions
are calculated. We show... | 1995-10-02 | 2008-02-03 | [
"cond-mat"
] | V. Freilikher, E. Kanzieper, and I. Yurkevich |
cond-mat/9510001 | Unitary Random-Matrix Ensemble with Governable Level Confinement | A family of unitary $\alpha$-Ensembles of random matrices with governable
confinement potential $V(x) ~ |x|^\alpha$ is studied employing exact results of
the theory of non-classical orthogonal polynomials. The density of levels,
two-point kernel, locally rescaled two-level cluster function and smoothed
connected correl... | 1995-10-02 | 2009-10-28 | [
"cond-mat"
] | V. Freilikher, E. Kanzieper, and I. Yurkevich |
cond-mat/9509183 | Bethe Ansatz for Heisenberg XXX Model | We investigate Bethe Ansatz equations for the one-dimensional
spin-$\frac{1}{2}$ Heisenberg XXX chain with a special interest in a finite
system. Solutions for the two-particle sector are obtained. The ground state in
antiferromagnetic case has been analytically studied through the logarithmic
form of Bethe Ansatz equa... | 1995-10-02 | 2007-05-23 | [
"cond-mat"
] | Shao-shiung Lin and Shi-shyr Roan |
cond-mat/9510006 | Tunneling in a bosonized Fermi liquid | We apply the bosonization technique to the problem of tunneling in a Fermi
liquid, and present a semiclassical theory of tunneling rates. To test the
method, we derive and evaluate an expression for the tunneling current in the
problem of two parallel Luttinger liquids. Next we study tunneling between
parallel two dime... | 1995-10-02 | 2007-05-23 | [
"cond-mat"
] | L. S. Levitov and A. V. Shytov |
cond-mat/9510005 | Impact of localization on Dyson's circular ensemble | A wide variety of complex physical systems described by unitary matrices have
been shown numerically to satisfy level statistics predicted by Dyson's
circular ensemble. We argue that the impact of localization in such systems is
to provide certain restrictions on the eigenvalues. We consider a solvable
model which take... | 1995-10-02 | 2009-10-28 | [
"cond-mat"
] | K. A. Muttalib and M. E. H. Ismail |
cond-mat/9510004 | Product Wave Function Renormalization Group Method | The authors propose a fast numerical renormalization group method --- the
product wave function renormalization group (PWFRG) method --- for 1D quantum
lattice models and 2D classical ones. A variational wave function, which is
expressed by a matrix product, is improved through a self-consistent
calculation. The new me... | 1995-10-02 | 2016-08-31 | [
"cond-mat"
] | T. Nishino and K. Okunishi |
cond-mat/9509177 | Ultrasound attenuation in gap-anisotropic systems | Transverse ultrasound attenuation provides a weakly-coupled probe of momentum
current correlations in electronic systems. We develop a simple theory for the
interpretation of transverse ultrasound attenuation coefficients in systems
with nodal gap anisotropy. Applying this theory we show how ultrasound can
delineate be... | 1995-10-01 | 2009-10-28 | [
"cond-mat"
] | J. Moreno and P. Coleman (Rutgers University) |
cond-mat/9509176 | Correlation effects in a quantum dot at high magnetic fields | We investigate the effects of electron correlations on the ground state
energy and the chemical potential of a droplet confined by a parabolic
potential at high magnetic fields. We demonstrate the importance of
correlations in estimating the transition field at which the first edge
reconstruction of the maximum density... | 1995-10-01 | 2009-10-28 | [
"cond-mat"
] | Kang-Hun Ahn, J. H. Oh, and K. J. Chang |
cond-mat/9509182 | Transfer of Spectral Weight in Spectroscopies of Correlated Electron
Systems | We study the transfer of spectral weight in the photoemission and optical
spectra of strongly correlated electron systems. Within the LISA, that becomes
exact in the limit of large lattice coordination, we consider and compare two
models of correlated electrons, the Hubbard model and the periodic Anderson
model. The re... | 1995-09-30 | 2009-10-28 | [
"cond-mat"
] | M. J. Rozenberg, G. Kotliar and H. Kajueter |
cond-mat/9509178 | Integrability and Applications of the Exactly-Solvable Haldane-Shastry
One-Dimensional Quantum Spin Chain | Recently, the one dimensional model of $N$ spins with $S=\frac{1}{2}$ on a
circle, interacting with an exchange that falls off with the inverse square of
the separation: $H_{\rm ISE} =\sum_{i\neq j} \frac{1}{[\frac{N}{\pi}
\sin(\frac{i-j}{N}\pi)]^2}(\svec_i\cdot \svec_j-\frac{1}{4})$, or ISE-model,
has received ample a... | 1995-09-30 | 2007-05-23 | [
"cond-mat"
] | Johan Cornelis Talstra (Princeton University) |
cond-mat/9510014 | One-Dimensional Fermi liquids | I attempt to give a pedagogical overview of the progress which has occurred
during the past decade in the description of one-dimensional correlated
fermions. Fermi liquid theory based on a quasi-particle picture, breaks down in
one dimension because of the Peierls divergence and because of charge-spin
separation. It is... | 1995-09-29 | 2009-10-28 | [
"cond-mat"
] | Johannes Voit |
cond-mat/9509180 | Stochastic Coefficient of Restitution - a New Approach to the Dynamics
of Granular Media | We consider a one-dimensional "gas" of inelastically colliding particles
where kinetic energy is dissipated by the excitation of vibrational degrees of
freedom. In our model the coefficient of restitution is a stochastic quantity
whose distribution can be calculated from an exact stochastic equation of
motion. We inves... | 1995-09-29 | 2007-05-23 | [
"cond-mat"
] | Goetz Giese |
cond-mat/9509181 | Surprises on the Way from 1D to 2D Quantum Magnets: the Novel Ladder
Materials | One way of making the transition between the quasi-long range order in a
chain of S=1/2 spins coupled antiferromagnetically and the true long range
order that occurs in a plane, is by assembling chains to make ladders of
increasing width. Surprisingly this crossover between one and two dimensions is
not at all smooth. ... | 1995-09-29 | 2009-10-28 | [
"cond-mat"
] | E. Dagotto and T. M. Rice |
cond-mat/9509179 | Theory for Superconducting Properties of the Cuprates: Doping Dependence
of the Electronic Excitations and Shadow States | The superconducting phase of the 2D one-band Hubbard model is studied within
the FLEX approximation and by using an Eliashberg theory. We investigate the
doping dependence of $T_c$, of the gap function $\Delta ({\bf k},\omega)$ and
of the effective pairing interaction. Thus we find that $T_c$ becomes maximal
for $13 \;... | 1995-09-29 | 2009-10-28 | [
"cond-mat"
] | S. Grabowski, M. Langer, J. Schmalian, and K. H. Bennemann |
cond-mat/9509174 | Gravity-Induced Shape Transformations of Vesicles | We theoretically study the behavior of vesicles filled with a liquid of
higher density than the surrounding medium, a technique frequently used in
experiments. In the presence of gravity, these vesicles sink to the bottom of
the container, and eventually adhere even on non - attractive substrates. The
strong size-depen... | 1995-09-28 | 2009-10-28 | [
"cond-mat"
] | Martin Kraus, Udo Seifert and Reinhard Lipowsky |
cond-mat/9509175 | Quantum effects in a superconducting glass model | We study disordered Josephson junctions arrays with long-range interaction
and charging effects. The model consists of two orthogonal sets of positionally
disordered $N$ parallel filaments (or wires) Josephson coupled at each crossing
and in the presence of a homogeneous and transverse magnetic field. The large
chargin... | 1995-09-28 | 2016-08-15 | [
"cond-mat"
] | T.K. Kope\'c and J.V.Jos\'e |
cond-mat/9509167 | Numerical Studies on the Magnetism of Fe-Ni-Mn Alloys in the Invar
Region | By means of self-consistent semi-empirical LCAO calculations we study the
itinerant magnetism of (Fe_{0.65}Ni_{0.35})_{1-y} Mn_y alloys for y between 0
and 0.22 at T=0 K, neglecting only the transverse spin components. We find that
the magnetic behaviour is quite complicated on a local scale. In addition to
ferromagnet... | 1995-09-27 | 2016-09-07 | [
"cond-mat",
"mtrl-th"
] | A. Paintner, F. S\"uss, U. Krey |
cond-mat/9509171 | Theory of the c-Axis Penetration Depth in the Cuprates | Recent measurements of the London penetration depth tensor in the cuprates
find a weak temperature dependence along the c-direction which is seemingly
inconsistent with evidence for d-wave pairing deduced from in-plane
measurements. We demonstrate in this paper that these disparate results are not
in contradiction, but... | 1995-09-27 | 2009-10-28 | [
"cond-mat"
] | R. J. Radtke, V. N. Kostur, and K. Levin |
cond-mat/9509169 | Surface crossover exponent for branched polymers in two dimensions | Transfer-matrix methods on finite-width strips with free boundary conditions
are applied to lattice site animals, which provide a model for randomly
branched polymers in a good solvent. By assigning a distinct fugacity to sites
along the strip edges, critical properties at the special (adsorption) and
ordinary transiti... | 1995-09-27 | 2009-10-28 | [
"cond-mat"
] | S L A de Queiroz |
cond-mat/9509165 | Polydispersity and ordered phases in solutions of rodlike macromolecules | We apply density functional theory to study the influence of polydispersity
on the stability of columnar, smectic and solid ordering in the solutions of
rodlike macromolecules. For sufficiently large length polydispersity (standard
deviation $\sigma>0.25$) a direct first-order nematic-columnar transition is
found, whil... | 1995-09-27 | 2009-10-28 | [
"cond-mat"
] | Anne Bohle, Robert Ho{\l}yst, and Thomas Vilgis |
cond-mat/9509168 | Nonlinear Dynamics of Composite Fermions in Nanostructures | We outline a theory describing the quasi-classical dynamics of composite
fermions in the fractional quantum Hall regime in the potentials of arbitrary
nanostructures. By an appropriate parametrization of time we show that their
trajectories are independent of their mass and dispersion. This allows to study
the dynamics... | 1995-09-27 | 2009-10-28 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | R. Fleischmann, T. Geisel, C. Holzknecht, and R. Ketzmerick |
cond-mat/9509170 | An exchange-correlation energy for a two-dimensional electron gas in a
magnetic field | We present the results of a variational Monte Carlo calculation of the
exchange-correlation energy for a spin-polarized two-dimensional electron gas
in a perpendicular magnetic field. These energies are a necessary input to the
recently developed current-density functional theory. Landau-level mixing is
included in a v... | 1995-09-27 | 2009-10-28 | [
"cond-mat"
] | Rodney Price and S. Das Sarma (Dept of Physics, University of
Maryland) |
cond-mat/9509172 | A Brownian Motion Model of Parametric Correlations in Ballistic Cavities | A Brownian motion model is proposed to study parametric correlations in the
transmission eigenvalues of open ballistic cavities. We find interesting
universal properties when the eigenvalues are rescaled at the hard edge of the
spectrum. We derive a formula for the power spectrum of the fluctuations of
transport observ... | 1995-09-27 | 2009-10-28 | [
"cond-mat"
] | A. M. S. Macedo (UFPE-Brazil) |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.