id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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astro-ph/9206004 | Dynamics of the Intermediate-Age Elliptical LMC Cluster NGC 1978 | In this paper we investigate the internal dynamics of the LMC cluster NGC
1978 through the use of Photometric (CCD images) and kinematic (stellar radial
velocities) data. We apply a variety of dynamical models to this data,
including multi-mass King-Michie models and rotating and non-rotating oblate
spheroid models. We... | 1992-06-23 | 2009-10-22 | [
"astro-ph"
] | Philippe Fischer, Douglas L. Welch, and Mario Mateo |
astro-ph/9206003 | Gamma Ray Signatures from Ordinary Cosmic Strings | We calculate the flux of ultra high energy photons from individual ordinary
(i.e. non-superconducting) cosmic strings and compare the results with the
sensitivity of current and proposed TeV and EeV telescopes. Our calculations
give only upper limits for the gamma ray flux, since the source of the photons,
jets from pa... | 1992-06-19 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | Jane H. MacGibbon (NASA/Goddard) and Robert H. Brandenberger (Brown) |
astro-ph/9206002 | Primordial Nucleosynthesis and the Abundances of Beryllium and Boron | The ability to now make measurements of Be and B as well as put constraints
on \lisix\ abundances in metal-poor stars has led to a detailed reexamination
of Big Bang Nucleosynthesis in the $A\groughly6$ regime. The nuclear reaction
network has been significantly expanded with many new rates added. It is
demonstrated th... | 1992-06-18 | 2009-09-15 | [
"astro-ph"
] | David Thomas, David N. Schramm, Keith A. Olive, Brian D. Fields |
astro-ph/9206001 | Electroweak Baryogenesis with Electroweak Strings | If stable electroweak strings are copiously produced during the electroweak
phase transition, they may contribute significantly to the presently observed
baryon to entropy ratio of the Universe. This analysis establishes the
feasibility of implementing an electroweak baryogenesis scenario without a
first order phase tr... | 1992-06-16 | 2010-11-01 | [
"astro-ph",
"hep-ph"
] | Robert H. Brandenberger (Brown) and Anne-Christine Davis (DAMTP,
Cambridge) |
astro-ph/9205006 | Can the Quark-Gluon Plasma in the Early Universe be supercooled? | The quark-hadron phase transition in the early universe can produce
inhomogeneities in the distribution of nucleons, which in turn affect the
primordial nucleosynthesis. In all the investigations of this problem it has
been assumed that the degree of supercooling of the quark-gluon plasma after
the phase transition is ... | 1992-05-13 | 2009-10-22 | [
"astro-ph",
"hep-lat"
] | B. Banerjee and R. V. Gavai |
astro-ph/9205005 | Chaotic Dark Matter | A very weakly coupled scalar field with mass $m$ and initial vacuum
expectation value $V$ will provide enough mass to close the universe provided
$V\simeq (3\times 10^8\gev)(100\gev/m)^{1/4}$. We discuss possible models in
which such a field could arise. | 1992-05-09 | 2009-10-22 | [
"astro-ph"
] | R. Rangarajan and M. Srednicki |
astro-ph/9205004 | The Spatial Distribution of Nearby Galaxy Clusters in the Northern and
Southern Galactic Hemispheres | We compare the spatial distributions of galaxy clusters in the northern and
southern galactic hemispheres, and the Abell and ACO clusters distributions. We
perform a statistical (correlation and cluster) analysis of a sample of Abell
and ACO galaxy clusters in the southern galactic hemisphere. We compare these
results ... | 1992-05-08 | 2011-05-23 | [
"astro-ph"
] | A. Cappi & S. Maurogordato |
astro-ph/9205003 | Particle Acceleration in (by) Accretion Discs | I present a model for acceleration of protons by the second-order Fermi
process acting on randomly scrambled magnetic flux arches above an accretion
disc. The accelerated protons collide with thermal protons in the disc,
producing degraded energetic protons, charged and neutral pions, and neutrons.
The pions produce ga... | 1992-05-04 | 2009-10-22 | [
"astro-ph"
] | J. I. Katz |
astro-ph/9205002 | Giant Molecular Cloud Formation through the Parker Instability in a
Skewed Magnetic Field | The effect of the magnetic skew on the Parker instability is investigated by
means of the linear stability analysis for a gravitationally stratified gas
layer permeated by a horizontal magnetic field. When the magnetic field is
skewed (i.e., the field line direction is a function of the height), the
wavelength of the m... | 1992-05-02 | 2009-10-22 | [
"astro-ph"
] | T. Hanawa, R. Matsumoto and K. Shibata |
astro-ph/9205001 | Nonstationary Gravitational Lenses and the Fermat Principle | We apply Perlick's (1990a) rigorous formulation of the Fermat principle in
arbitrary spacetimes to prove the correctness of the description of
gravitational lensing by gravitational waves, given in the literature using the
scalar and vector formalisms. We obtain an expression for the time delay due to
such nonstationar... | 1992-05-01 | 2011-07-19 | [
"astro-ph"
] | Valerio Faraoni |
astro-ph/9204006 | Nova Dust Nucleation: Kinetics and Photodissociation | Dust is observed to form in nova ejecta. The grain temperature is determined
by the diluted nova radiation field rather than the gas kinetic temperature,
making classical nucleation theory inapplicable. We used kinetic equations to
calculate the growth of carbon nuclei in these ejecta. For expected values of
the parame... | 1992-04-30 | 2009-10-22 | [
"astro-ph"
] | D. J. Johnson, M. W. Friedlander, J. I. Katz |
astro-ph/9204005 | Radiation Transfer in Gamma-Ray Bursts | We have calculated gamma-ray radiative transport in regions of high energy
density, such as gamma-ray burst source regions, using a discrete ordinate,
discrete energy group method. The calculations include two-photon pair
production and annihilation, as well as three-photon pair annihilation. The
radiation field itself... | 1992-04-30 | 2009-10-22 | [
"astro-ph"
] | B. J. Carrigan and J. I. Katz |
astro-ph/9204004 | Expanding Photospheres of Type II Supernovae and the Extragalactic
Distance Scale | We use the Expanding Photosphere Method to determine distances to 10 type II
supernovae. The effects of asymmetries, extinction, and flux dilution are
explored. Using empirical evidence and time-independent, spherical models which
treat H and He in non-LTE, we show that blackbody corrections caused by flux
dilution are... | 1992-04-30 | 2009-10-22 | [
"astro-ph"
] | B P Schmidt, R P Kirshner, R G Eastman |
astro-ph/9204003 | The Ptolemaic Gamma-Ray Burst Universe | The BATSE experiment on GRO has demonstrated the isotropic arrival directions
and flat $\log N$ {\it vs.} $\log S$ of cosmic gamma-ray bursts. These data are
best explained if the burst sources are distributed throughout an extended
spherical Galactic halo, as previously suggested by Jennings. The halo's radius
is at l... | 1992-04-29 | 2009-10-22 | [
"astro-ph"
] | J. I. Katz |
astro-ph/9204002 | Gravitational Lensing and the Variability of G | The four observables associated with gravitational lensing of distant quasars
by intervening galaxies: image splittings, relative amplifications, time
delays, and optical depths, provide separate measures of the strength of the
gravitational constant $G$ at cosmological distances. These allow one, in
principle, to fact... | 1992-04-26 | 2009-08-18 | [
"astro-ph"
] | Lawrence Krauss and Martin White |
astro-ph/9204001 | Gamma-Ray Bursts as the Death Throes of Massive Binary Stars | It is proposed that gamma-ray bursts are created in the mergers of double
neutron star binaries and black hole neutron star binaries at cosmological
distances. Bursts with complex profiles and relatively long durations are the
result of magnetic flares generated by the Parker instability in a post-merger
differentially... | 1992-04-13 | 2009-10-22 | [
"astro-ph"
] | Ramesh Narayan, Bohdan Paczy\'nski, and Tsvi Piran |
cond-mat/9212036 | Dimerization structures on the metallic and semiconducting fullerene
tubules | The Kekule patterns are realized in the metallic tubules and chain-like
distortions occur in the semiconducting tubules. | 1992-12-31 | 2007-05-23 | [
"cond-mat"
] | Kikuo Harigaya (1) and Mitsutaka Fujita (2) ((1)Department of Physics,
University of Sheffield, United Kingdom, (2) Institute of Materials Science,
University of Tsukuba, Japan) |
cond-mat/9212035 | On flux phase and N\'eel antiferromagnetism in the {\em t}-{\em
J}-model}} | We reanalyse the mathematical formulation of the flux-state problem within
the $t$-$J$ model. The analysis of different parametrizations in the functional
representation shows that (i) calculations which take into account constraints
for the number of on-site-available states are describing quasiparticles in
terms of w... | 1992-12-29 | 2007-05-23 | [
"cond-mat"
] | I.S. Sandalov, M. Richter |
cond-mat/9212034 | Hierarchical Wave Functions of Fractional Quantum Hall Effect on the
Torus | One kind of the hierarchical wave functions of Fractional Quantum Hall Effect
on the torus is constructed. We find that the wave functions closely relate to
the wave functions of generalized Abelian Chern-Simons theory. | 1992-12-28 | 2008-11-26 | [
"cond-mat",
"hep-th"
] | Dingping Li |
cond-mat/9212033 | Hierarchical Wave Functions and Fractional Statistics in Fractional
Quantum Hall Effect on the Torus | One kind of hierarchical wave functions of Fractional Quantum Hall Effect
(FQHE) on the torus are constructed. The multi-component nature of anyon wave
functions and the degeneracy of FQHE on the torus are very clear reflected in
this kind of wave functions. We also calculate the braid statistics of the
quasiparticles ... | 1992-12-28 | 2015-06-25 | [
"cond-mat",
"hep-th"
] | Dingping Li |
cond-mat/9212032 | Spatial Correlation of Conduction Electrons in Metal with Complicated
Geometry Of The Fermi Surface | The "density-density" correlation function of conduction electrons in metal
is investigated. It is shown, that the asymptotic behaviour of the CF depends
on the shape and the local geometry of the Fermi surface. In particular, the
exponent of power law which describes the damping of Friedel oscillations at
large r (-4 ... | 1992-12-25 | 2009-10-22 | [
"cond-mat"
] | D.I.Golosov and M.I.Kaganov |
cond-mat/9212031 | Spin Gap and Superconductivity in the One-Dimensional t-J Model with
Coulomb Repulsion | The one-dimensional t-J model with density-density repulsive interactions is
investigated using exact diagonalization and quantum Monte Carlo methods. A
short-range repulsion pushes phase separation to larger values of J/t, and
leads to a widened precursor region in which a spin gap and strengthened
superconducting cor... | 1992-12-23 | 2007-05-23 | [
"cond-mat"
] | M.Troyer, H. Tsunetsugu, T.M. Rice, J. Riera and E. Dagotto |
cond-mat/9212030 | Gapless Spin-Fluid Ground State in a Random Quantum Heisenberg Magnet | We examine the spin-$S$ quantum Heisenberg magnet with Gaussian-random,
infinite-range exchange interactions. The quantum-disordered phase is accessed
by generalizing to $SU(M)$ symmetry and studying the large $M$ limit. For large
$S$ the ground state is a spin-glass, while quantum fluctuations produce a
spin-fluid sta... | 1992-12-21 | 2009-01-23 | [
"cond-mat"
] | Subir Sachdev and Jinwu Ye |
cond-mat/9212029 | Super Lax Pairs and Infinite Symmetries in The $1/r^2$ System | We present an algebraic structure that provides an interesting and novel link between supersymmetry and quantum integrability. This structure underlies two classes of models that are exactly solvable in 1-dimension and belong to the $1/r^2 $ family of interactions. The algebra consists of the commutation between a ``Su... | 1992-12-19 | 2025-07-03 | [
"cond-mat"
] | B. Sriram Shastry (AT & T Bell Laboratories, Murray Hill, N.J.) and Bill Sutherland (Department of Physics, University of Utah, Salt Lake City) |
cond-mat/9212028 | Solution of Some Integrable One-Dimensional Quantum Systems | In this paper, we investigate a family of one-dimensional multi-component
quantum many-body systems. The interaction is an exchange interaction based on
the familiar family of integrable systems which includes the inverse square
potential. We show these systems to be integrable, and exploit this
integrability to comple... | 1992-12-18 | 2009-10-22 | [
"cond-mat"
] | Bill Sutherland, B. Sriram Shastry (Physics Department, AT&T Bell
Labs, Murray Hill, NJ and University of Utah, Salt Lake City, UT) |
cond-mat/9212027 | A Solvable Spin-Glass of Quantum Rotors | We examine a model of $M$-component quantum rotors coupled by
Gaussian-distributed random, infinite-range exchange interactions. A complete
solution is obtained at $M=\infty$ in the spin-glass and quantum-disordered
phases. The quantum phase transition separating them is found to possess
logarithmic violations of scali... | 1992-12-18 | 2009-01-23 | [
"cond-mat"
] | Jinwu Ye, Subir Sachdev, and N. Read |
cond-mat/9212025 | Fractional Quantum Hall States in Narrow Channels | A model system is considered where two dimensional electrons are confined by
a harmonic potential in one direction, and are free in the other direction.
Ground state in strong magnetic fields is investigated through numerical
diagonalization of the Hamiltonian. It is shown that the fractional quantum
Hall states are re... | 1992-12-17 | 2009-10-22 | [
"cond-mat"
] | Daijiro Yoshioka |
cond-mat/9212026 | On Oscillations in Cellular Automata | We investigate cellular automata where some global quantity varies
periodically or quasiperiodically with time. We find that these systems are
highly predictable, and can be rather well described by a set of mean-field
variables. We conclude that this is not a collective phenomenon - where
different subsystems are supp... | 1992-12-17 | 2009-10-22 | [
"cond-mat"
] | Jan Hemmingsson and Hans J. Herrmann |
cond-mat/9212024 | Multiscaling analysis and width of the active zone of large off-lattice
DLA | We measure the multiscaling behavior of large off-lattice diffusion limited
aggregates (DLA). In contrast to previous studies we now find a continuous
dependence of the multiscaling dimensions $D(x)$ on the relative distance
$x=r/R_g$ to the center of the cluster. This result agrees with measurements on
smaller cluster... | 1992-12-16 | 2009-10-22 | [
"cond-mat"
] | Peter Ossadnik |
cond-mat/9212023 | Scaling Exponents for Kinetic Roughening in Higher Dimensions | We discuss the results of extensive numerical simulations in order to
estimate the scaling exponents associated with kinetic roughening in higher
dimensions, up to d=7+1. To this end, we study the restricted solid - on -
solid growth model, for which we employ a novel fitting {\it ansatz} for the
spatially averaged hei... | 1992-12-16 | 2009-10-22 | [
"cond-mat"
] | T. Ala-Nissila, T. Hjelt, J. M. Kosterlitz, and O. Ven\"al\"ainen |
cond-mat/9212022 | Electronic interactions in fullerene spheres | The electron-phonon and Coulomb interactions inC$_{60}$, and larger fullerene
spheres are analyzed. The coupling between electrons and intramolecular
vibrations give corrections $\sim 1 - 10$ meV to the electronic energies for
C$_{60}$, and scales as $R^{-4}$ in larger molecules. The energies associated
with electrosta... | 1992-12-15 | 2009-10-22 | [
"cond-mat"
] | F. Guinea, J. Gonzalez and M.A. H. Vozmediano |
cond-mat/9212021 | Test of Conformal Invariance in One-Dimensional Quantum Liquid with
Long-Range Interaction | We numerically study the momentum distribution of one-dimensional Bose and
Fermi systems with long-range interaction $g/r^2$ for the ``special'' values
$g= -\frac{1}{2}, 0, 4$, singled out by random matrix theory. The critical
exponents are shown to be independent of density and in excellent agreement
with estimates ob... | 1992-12-15 | 2014-09-02 | [
"cond-mat",
"hep-th"
] | Rudolf A. R\"omer and Bill Sutherland |
cond-mat/9212020 | Spin-Wave Theory and Finite-Size Scaling for the Heisenberg
Antiferromagnet | Spin-wave perturbation theory for the Heisenberg antiferromagnet at zero
temperature is used to compute the finite-lattice corrections to the ground
state energy, the staggered magnetization and the energy gap. The dispersion
relation, the spin-wave velocity and the bulk ground state energy to order
$O(1/S^2)$ are also... | 1992-12-14 | 2009-10-22 | [
"cond-mat"
] | Zheng Weihong and C.J. Hamer |
cond-mat/9212019 | The $1/N$ Expansion and Spin Correlations in Constrained Wavefunctions | We develop a large-N expansion for Gutzwiller projected spin states. We
consider valence bonds singlets, constructed by Schwinger bosons or fermions,
which are variational ground states for quantum antiferromagnets. This
expansion is simpler than the familiar expansions of the quantum Heisenberg
model, and thus more in... | 1992-12-14 | 2009-10-22 | [
"cond-mat"
] | Maxim Raykin (Physics Department, Boston University, Boston, USA) and
Assa Auerbach (Physics Department, Technion, Haifa, Israel and Physics
Department, Boston University, Boston, USA) |
cond-mat/9212018 | Spin Tunneling, Berry phases and Doped Antiferromagnets | Interference effects between Berry phase factors in spin tunneling systems
have been discussed in recent Letters by Loss, DiVincenzo and Grinstein and von
Delft and Henley. This Comment points out that Berry phases in spin tunneling
are important in another interesting case: the two dimensional doped
antiferromagnet. I... | 1992-12-10 | 2009-10-22 | [
"cond-mat"
] | Assa Auerbach |
cond-mat/9212015 | Theory of Anisotropic Superexchange in Insulating Cuprates | Spin-orbit corrections to superexchange are calculated using the method of
Moriya [T.\ Moriya, {\it Phys.\ Rev.}~{\bf 120} 91, (1960)] for two of the
insulating parent compounds of the cuprate superconductors: (1)
La$_{2-x}$Nd$_x$CuO$_4$ where the CuO$_6$ octahedra forming each Cu-O layer are
tilted in staggered fashio... | 1992-12-09 | 2009-10-22 | [
"cond-mat"
] | N.E. Bonesteel |
cond-mat/9212014 | Dynamical Properties of a Haldane Gap Antiferromagnet | We study the dynamic spin correlation function of a spin one
antiferromagnetic chain with easy-plane single-ion anisotropy. We use exact
diagonalization by the Lancz\H os method for chains of lengths up to N=16
spins. We show that a single-mode approximation is an excellent description of
the dynamical properties. A va... | 1992-12-09 | 2009-10-22 | [
"cond-mat",
"hep-lat"
] | O. Golinelli, Th. Jolicoeur, R. Lacaze |
cond-mat/9212012 | Exact Correlation Function at the Lifshitz Points of the Spherical Model | The spin-spin correlation function of the spherical model being precisely at
an anisotropic Lifshitz point of arbitrary order is calculated exactly. The
results are in agreement with scaling. The scaling function is shown to be
universal. The direction-dependent long-range correlations may change from
ferromagnetic to ... | 1992-12-09 | 2011-09-26 | [
"cond-mat",
"hep-lat",
"hep-th",
"math-ph",
"math.MP"
] | Laurent Frachebourg and Malte Henkel |
cond-mat/9212013 | Bosonic Mean Field Theory of the Spiral Phases of Heisenberg
Antiferromagnets on a Chain | We develop a novel bosonic mean field theory to describe the spiral phases of
a Heisenberg antiferromagnet on a one-dimensional chain, in terms of three
bosons at each site. The ground state is disordered and for large values of the
spin $S$, two different and exponentially small energy gaps are found. The
spin-spin co... | 1992-12-09 | 2009-10-22 | [
"cond-mat"
] | Sumathi Rao and Diptiman Sen |
cond-mat/9212017 | Flux Pinning and Phase Transitions in Model High-Temperature
Superconductors with Columnar Defects | We calculate the degree of flux pinning by defects in model high-temperature
superconductors (HTSC's). The HTSC is modeled as a three-dimensional network of
resistively-shunted Josephson junctions in an external magnetic field,
corresponding to a HTSC in the extreme Type-II limit. Disorder is introduced
either by rando... | 1992-12-09 | 2009-10-22 | [
"cond-mat"
] | K. H. Lee, D. Stroud, and S. M. Girvin |
cond-mat/9212016 | Tunneling Conductance Between Parallel Two Dimensional Electron Systems | We derive and evaluate expressions for the low temperature {\it dc}
equilibrium tunneling conductance between parallel two-dimensional electron
systems. Our theory is based on a linear-response formalism and on
impurity-averaged perturbation theory. The disorder broadening of features in
the dependence of tunneling con... | 1992-12-09 | 2009-10-22 | [
"cond-mat"
] | Lian Zheng and A.H. MacDonald |
cond-mat/9212011 | Translational Correlations in the Vortex Array at the Surface of a
Type-II Superconductor | We discuss the statistical mechanics of magnetic flux lines in a
finite-thickness slab of type-II superconductor. The long wavelength properties
of a flux-line liquid in a slab geometry are described by a hydrodynamic free
energy that incorporates the boundary conditions on the flux lines at the
sample's surface as a s... | 1992-12-08 | 2009-10-22 | [
"cond-mat"
] | M.C. Marchetti (Syracuse University) and D.R. Nelson (Harvard
University) |
cond-mat/9212005 | Length-scale competition in the damped sine-Gordon chain | It is shown that there are two different regimes for the damped sine-Gordon
chain driven by the spatio-temporal periodic force $\Gamma sin(\omega t - k_{n}
x)$ with a flat initial condition. For $\Gamma_{c}(n)$ to a translating {\em
2-breather} excitation from a state locked to the driver. For $\omega < k_{n}$,
the exc... | 1992-12-07 | 2007-05-23 | [
"cond-mat"
] | David Cai (1), A.R. Bishop (1), and Angel Sanchez (1,2) ((1)
Theoretical Division and CNLS, Los Alamos National Laboratory, (2) Escuela
Politecnica Superior, Universidad Carlos III de Madrid) |
cond-mat/9212010 | Dynamical Properties of a Single Hole in an Antiferromagnet | A finite size scaling analysis of the spectral function and of the optical
conductivity of a single hole moving in an antiferromagnetic background is
performed. It is shown that both the low energy quasiparticle peak and the
broad higher energy structure are robust with increasing cluster size from
$4\times 4$ to $\sqr... | 1992-12-07 | 2009-10-22 | [
"cond-mat"
] | Didier Poilblanc, Timothy Ziman, H.J. Schulz and Elbio Dagotto |
cond-mat/9212008 | Indications of d_{x^2 - y^2} Superconductivity in the Two Dimensional
t-J Model | Superconducting correlations in the two dimensional ${\rm t-J}$ model at zero
temperature are evaluated using numerical techniques. At the fermionic density
$\langle n \rangle \sim 1/2$, strong signals of $\dx2y2$ superconductivity were
observed in the ground state. These conclusions are based on a study of static
pair... | 1992-12-07 | 2009-10-22 | [
"cond-mat"
] | Elbio Dagotto and Jose Riera |
cond-mat/9212007 | Low Temperature Transport through a Quantum Dot: The Anderson Model out
of Equilibrium | NEC technical report 92-079-2-0077-1. | 1992-12-07 | 2009-10-22 | [
"cond-mat"
] | Y. Meir, N. S. Wingreen and P. A. Lee |
cond-mat/9212006 | A determination of the low energy parameters of the 2-d Heisenberg
antiferromagnet | We perform numerical simulations of the 2-d antiferromagnetic quantum
Heisenberg model using an efficient cluster algorithm. Comparing the finite
size and finite temperature effects of various quantities with recent results
from chiral perturbation theory we are able to determine the low energy
parameters of the system... | 1992-12-07 | 2007-05-23 | [
"cond-mat",
"hep-lat"
] | U.-J. Wiese and H.-P. Ying, (Bern University) |
cond-mat/9212009 | Basis Set Reduction Applied to the Two Dimensional t-Jz Model | A simple variation of the Lanczos method is discussed. The new technique is
based on a systematic reduction of the size of the Hilbert space of the model
under consideration. As an example, the two dimensional ${\rm t-J_z}$ model of
strongly correlated electrons is studied. Accurate results for the ground state
energy ... | 1992-12-07 | 2009-10-22 | [
"cond-mat"
] | Jose Riera and Elbio Dagotto |
cond-mat/9212004 | Fractal Properties of the Distribution of Earthquake Hypocenters | We investigate a recent suggestion that the spatial distribution of
earthquake hypocenters makes a fractal set with a structure and fractal
dimensionality close to those of the backbone of critical percolation clusters,
by analyzing four different sets of data for the hypocenter distributions and
calculating the dynami... | 1992-12-04 | 2009-10-22 | [
"cond-mat"
] | Hisao Nakanishi, Muhammad Sahimi, Michelle C. Robertson, Charles C.
Sammis and Mark D. Rintoul |
cond-mat/9212003 | Recurrent Clogging and Density Waves in Granular Material Flowing
through a Narrow Pipe | We report on density waves in granular material, investigated both
experimentally and numerically. When granular material falls through a long
narrow pipe one observes recurrent clogging. The kinetic energy of the falling
particles increases up to a characteristic threshold corresponding to the onset
of recurrent clogg... | 1992-12-03 | 2007-05-23 | [
"cond-mat",
"hep-lat"
] | Thorsten Poeschel |
cond-mat/9212002 | Weak-Localization and Integrability in Ballistic Cavities | We demonstrate the existence of an interference contribution to the average
magnetoconductance, G(B), of ballistic cavities and use it to test the
semiclassical theory of quantum billiards. G(B) is qualitatively different for
chaotic and regular cavities, an effect explained semiclassically by the
differing classical d... | 1992-12-02 | 2009-01-23 | [
"cond-mat"
] | H. U. Baranger, R. A. Jalabert, and A. D. Stone |
cond-mat/9212001 | The Mass Gap of the Nonlinear Sigma Model through the Finite Temperature
Effective Action | The $O(3)$ nonlinear $\sigma$ model is studied in the disordered phase, using
the techniques of the effective action and finite temperature field theory. The
nonlinear constraint is implemented through a Lagrange multiplier. The finite
temperature effective potential for this multiplier is calculated at one loop.
The e... | 1992-12-01 | 2009-10-22 | [
"cond-mat"
] | D. Senechal |
cond-mat/9211021 | Magnetic Oscillations of a Fractional Hall Dot | We show that a quantum dot in the fractional Hall regime exhibits mesoscopic
magnetic oscillations with a period which is a multiple of the period for free
electrons. Our calculations are performed for parabolic quantum dots with
hard-core electron-electron interactions and are exact in the strong field
limit for $k_B ... | 1992-11-30 | 2009-10-22 | [
"cond-mat"
] | A.H.MacDonald and M.D. Johnson |
cond-mat/9211020 | Diffusion and spectral dimension on Eden tree | We calculate the eigenspectrum of random walks on the Eden tree in two and
three dimensions. From this, we calculate the spectral dimension $d_s$ and the
walk dimension $d_w$ and test the scaling relation $d_s = 2d_f/d_w$ ($=2d/d_w$
for an Eden tree). Finite-size induced crossovers are observed, whereby the
system cros... | 1992-11-27 | 2009-10-22 | [
"cond-mat"
] | Hisao Nakanishi and Hans J. Herrmann |
cond-mat/9211019 | Quantum Mechanics and Superconductivity in a Magnetic Field | The influence of a magnetic field on superconductivity is usually described
either phenomenologically, using Ginzburg-Landau theory, or semiclassically
using Gor'kov theory. In this article we discuss the influence of magnetic
fields on the mean-field theory of the superconducting instability from a
completely quantum ... | 1992-11-25 | 2015-06-25 | [
"cond-mat"
] | A. H. MacDonald, Hiroshi Akera and M.R. Norman |
cond-mat/9211018 | I-V Characteristics of High Temperature Superconductors with Columnar
Defects | The vortex glass transition in the presence of columnar defects is studied by
Monte Carlo simulations of a vortex loop model, suggested by the analogy to the
$T=0$ superconductor-insulator transition for dirty bosons in (2+1)D. From
finite-size scaling analysis of the $I$-$V$ characteristic we find two
dynamical expone... | 1992-11-24 | 2009-10-22 | [
"cond-mat"
] | M. Wallin and S. M. Girvin |
cond-mat/9211017 | Possible Quantum Spin Liquid States on the Triangular and Kagome
Lattices | The frustrated spin-one-half Heisenberg model on triangualr and Kagome
Lattices is mapped onto a single specis of fermion carrying statistical flux.
The corresponding Chern-Simons gauge theory is analyzed at the Gaussian level
and found to be massive. This provides a new motivation for the spin-liquid
Kalmeyer-Laughlin... | 1992-11-24 | 2016-08-31 | [
"cond-mat"
] | Kun Yang, K. L. Warman, and S. M. Girvin |
cond-mat/9211016 | Angle of Repose and Angle of Marginal Stability: Molecular Dyanmics of
Granular Particles | We present an implementation of realistic static friction in molecular
dynamics (MD) simulations of granular particles. In our model, to break
contacts between two particles, one has to apply a finite amount of force,
determined by the Coulomb criterion. Using a two dimensional model, we show
that piles generated by av... | 1992-11-23 | 2009-10-22 | [
"cond-mat"
] | Jysoo Lee and Hans J. Herrmann |
cond-mat/9211015 | Cellular automaton for the fracture of disordered media | We study numerically the growth of a crack in an elastic medium under the
influence of a travelling shockwave. We describe the implementation of a fast
algorithm which is perfectly suited for a data parallel computer. Using large
scale simulations on the Connection Machine we generate cracks with more than
10000 sites ... | 1992-11-21 | 2015-06-25 | [
"cond-mat"
] | Peter Ossadnik |
cond-mat/9211014 | Spin-Peierls ground states and frustration in a multi-band
Peierls-Hubbard model | We discuss the consequences of including both electron-phonon and
electron-electron couplings in multi-band models, focusing on numerical studies
of a one-dimensional two-band model in the intermediate regime for both
coupling strengths. Spin-Peierls as well as long-period, frustrated ground
states are identified, remi... | 1992-11-21 | 2009-10-22 | [
"cond-mat"
] | H. Roeder, A.R. Bishop, and J. Tinka Gammel |
cond-mat/9211012 | Second-Order Dynamics in the Collective Evolution of Coupled Maps and
Automata | We review recent numerical studies and the phenomenology of spatially
synchronized collective states in many-body dynamical systems. These states
exhibit thermodynamic noise superimposed on the collective, quasiperiodic order
parameter evolution with typically one basic irrational frequency. We
concentrate on the descr... | 1992-11-20 | 2014-10-13 | [
"cond-mat",
"hep-lat"
] | P.-M. Binder, V. Privman |
cond-mat/9211013 | Granular Material Flowing Down an Inclined Chute: A Molecular Dynamics
Simulation | Two-dimensional Molecular Dynamics simulations are used to model the free
surface flow of spheres falling down an inclined chute. The interaction between
the particles in our model is assumed to be subjected to the Hertzian contact
force and normal as well as shear friction. The stream of particles shows a
characterist... | 1992-11-20 | 2009-10-22 | [
"cond-mat",
"hep-lat"
] | Thorsten Poeschel |
cond-mat/9211011 | On the Thermodynamics of Granular Media | A thermodynamic formulation for moving granular material is proposed. The
fluctuations due to the constant flux and dissipation of energy are controlled
in a `granular' ensemble by a pressure $\wp$ (`compression') which is conjugate
to a contact volume (`contactopy'). The corresponding response function
(`dissipativity... | 1992-11-18 | 2009-10-22 | [
"cond-mat"
] | H.J. Herrmann |
cond-mat/9211010 | The half-filled Hubbard model in the pair approximation of the Cluster
Variation Method | The half filled Hubbard model is studied in the pair approximation of the
Cluster Variation Method. The use of the $SO(4)$ symmetry of the model makes
possible to give a complete analytical characterization of the ground state, by
means of explicit expressions for the double occupancy and the nearest neighbor
correlati... | 1992-11-18 | 2009-10-22 | [
"cond-mat"
] | Alessandro Pelizzola |
cond-mat/9211009 | The fermion sign problem: A new decoupling transformation, and a new
simulation algorithm | We discuss the Fermion sign problem and, by examining a very general
Hubbard-Stratonovich (HS) transformation, argue that the sign problem cannot be
solved with such methods. We propose a different kind of transformation which,
while not solving the sign problem, shows more detailed information about the
system. With o... | 1992-11-17 | 2011-08-11 | [
"cond-mat",
"hep-lat"
] | Ghassan George Batrouni and Philippe de Forcrand |
cond-mat/9211007 | Singularity spectrum of self-organized criticality | I introduce a simple continuous probability theory based on the
Ginzburg-Landau equation that provides for the first time a common analytical
basis to relate and describe the main features of two seemingly different
phenomena of condensed-matter physics, namely self-organized criticality and
multifractality. Numerical ... | 1992-11-16 | 2008-12-24 | [
"cond-mat"
] | E. Canessa (ICTP-Trieste, Italy) |
cond-mat/9211006 | Cluster Algorithm for Vertex Models | We present a new type of cluster algorithm that strongly reduces critical
slowing down in simulations of vertex models. Since the clusters are closed
paths of bonds, we call it the {\em loop algorithm}. The basic steps in
constructing a cluster are the break-up and the freezing of vertices. We
concentrate on the case o... | 1992-11-16 | 2009-01-23 | [
"cond-mat",
"hep-lat"
] | H.G. Evertz, G. Lana and M. Marcu |
cond-mat/9211008 | Rigid Chiral Membranes | Statistical ensembles of flexible two-dimensional fluid membranes arise
naturally in the description of many physical systems. Typically one encounters
such systems in a regime of low tension but high stiffness against bending,
which is just the opposite of the regime described by the Polyakov string. We
study a class ... | 1992-11-16 | 2016-08-31 | [
"cond-mat",
"hep-th"
] | Philip Nelson and Thomas Powers |
cond-mat/9211005 | Spin-Wave Theory of the Spiral Phase of the t-J Model | A graded H.P,realization of the SU(2|1) algebra is proposed.A spin-wave
theory with a condition that the sublattice magnetization is zero is
discussed.The long-range spiral phase is investigated.The spin-spin correlator
is calculated. | 1992-11-10 | 2009-10-22 | [
"cond-mat"
] | N.I.Karchev and T.S.Hristov |
cond-mat/9211003 | Infinite-Scale Percolation in a New Type of Branching Diffusion
Processes | We give an account of matter and (basically) a solution of a new class of
problems synthesizing percolation theory and branching diffusion processes.
They led us to realizing a novel type of stochastic processes, namely branching
processes with diffusion on the space of parameters distinguishing the
branching `particle... | 1992-11-04 | 2011-12-08 | [
"cond-mat",
"hep-lat"
] | A.Mezhlumian and S.A.Molchanov |
cond-mat/9211004 | Level repulsion in integrable and almost-integrable quantum spin models | The repartition of the separation between energy levels of various isotropic
S=1/2 antiferromagnetic chains is studied numerically with the aim of
investigating the transition from integrable to non-integrable systems. We
begin by displaying the level separation distribution of the integrable Bethe
chain. Then two non-... | 1992-11-04 | 2009-10-22 | [
"cond-mat"
] | Theodore C. Hsu and J.C. Angles d'Auriac |
cond-mat/9211001 | Exact Solution of an Electronic Model of Superconductivity in 1+1
Dimensions | We study a superconducting integrable model of strongly correlated electrons
in 1+1 dimensions. We construct all six Bethe Ans\"atze for the model and give
explicit expressions for lowest conservation laws. We also prove a lowest
weight theorem for the Bethe-Ansatz states. | 1992-11-03 | 2015-06-25 | [
"cond-mat"
] | Fabian H.L. Essler, Vladimir E. Korepin, Kareljan Schoutens |
cond-mat/9211002 | Spin tunneling in the Kagom\'e antiferromagnet | The collective tunneling of a small cluster of spins between two degenerate
ground state configurations of the Kagom\'{e}-lattice quantum Heisenberg
antiferromagnet is \mbox{studied}. The cluster consists of the six spins on a
hexagon of the lattice. The resulting tunnel splitting energy $\Delta$ is
calculated in detai... | 1992-11-03 | 2009-10-22 | [
"cond-mat"
] | Jan von Delft and Christopher L. Henley (Laboratory of Atomic and
Solid State Physics, Cornell University, Ithaca, NY) |
cond-mat/9210028 | The Third Virial Coefficient of Free Anyons | We use a path integral representation for the partition function of
non-interacting anyons confined in a harmonic oscillator potential in order to
prove that the third virial coefficient of free anyons is finite, and to
calculate it numerically. Our results together with previously known results
are consistent with a r... | 1992-10-30 | 2009-10-22 | [
"cond-mat",
"hep-th"
] | Jan Myrheim and K{\aa}re Olaussen |
cond-mat/9210027 | Absence of Definite Scaling Laws in Raman Scattering from Fractals | The frequency dependence of the Raman coupling coefficient $C(\omega)$ is
calculated numerically for square and cubic percolation clusters. No general
scaling law in terms of the macroscopic parameters such as the fractal
dimension $D$ or the spectral dimension $\overline d$ is found. $C(\omega)$ is
sensitive to the mi... | 1992-10-30 | 2007-05-23 | [
"cond-mat"
] | P.Benassi, O.Pilla, G.Viliani, G.Ruocco, G.Signorelli, V.Mazzacurati
and M.Montagna |
cond-mat/9210026 | Narrow band noise as a model of time-dependent accelerations: study of
the stability of a fluid surface in a microgravity environment | We introduce a stochastic model to analyze in quantitative detail the effect
of the high frequency components of the residual accelerations onboard
spacecraft (often called g-jitter) on fluid motion. The residual acceleration
field is modeled as a narrow band noise characterized by three independent
parameters: its int... | 1992-10-28 | 2007-05-23 | [
"cond-mat"
] | Jaume Casademunt, Wenbin Zhang, Jorge Vinals, R.F. Sekerka |
cond-mat/9210025 | Collective Effects in Random Sequential Adsorption of Diffusing Hard
Squares | We study by Monte Carlo computer simulations random sequential adsorption
(RSA) with diffusional relaxation, of lattice hard squares in two dimensions.
While for RSA without diffusion the coverage approaches its maximum jamming
value (large-time fractional coverage) exponentially, added diffusion allows
the deposition ... | 1992-10-24 | 2014-10-13 | [
"cond-mat",
"hep-lat"
] | J.-S. Wang, P. Nielaba, V. Privman |
cond-mat/9210021 | Static Response Function for Longitudinal and Transverse Excitations in
Superfluid Helium | The sum rule formalism is used to evaluate rigorous bounds for the density
and current static response functions in superfluid helium at zero temperature.
Both lower and upper bounds are considered. The bounds are expressed in terms
of ground state properties (density and current correlation funtions) and of
the intera... | 1992-10-23 | 2009-10-22 | [
"cond-mat"
] | F.Dalfovo and S.Stringari |
cond-mat/9210024 | The Supercooling of a Nematic Liquid Crystal | We investigate the supercooling of a nematic liquid crystal using fluctuating
non-linear hydrodynamic equations. The Martin-Siggia-Rose formalism is used to
calculate renormalized transport coefficients to one-loop order. Similar
theories for isotropic liquids have shown substantial increases of the
viscosities as the ... | 1992-10-23 | 2009-10-22 | [
"cond-mat"
] | P.De, Robert Pelcovits, E. Vogel, J. Vogel |
cond-mat/9210023 | Uncertainty Principle and Off-Diagonal Long Range Order in the
Fractional Quantum Hall Effect | A natural generalization of the Heisenberg uncertainty principle inequality
holding for non hermitian operators is presented and applied to the fractional
quantum Hall effect (FQHE). This inequality was used in a previous paper to
prove the absence of long range order in the ground state of several 1D systems
with cont... | 1992-10-23 | 2009-10-22 | [
"cond-mat"
] | L.Pitaevskii and S.Stringari |
cond-mat/9210022 | Correlaction Effects on the Band Gap of Conducting Polymers | By applying the projection technique to the computation of excitation
energies, we study the correlation effects on the band gap of conducting
polymers. In the presence of an additional electron or hole, the correlation
induces a polarization cloud around the addi- tional particle, which forms a
polaron. For the excita... | 1992-10-23 | 2009-10-22 | [
"cond-mat"
] | C.Q.Wu (Max-Planck-Institue f\"ur Festk\"orperforschung, Stuttgart,
Germany) |
cond-mat/9210020 | Magnetic field effects on non-periodic superlattice structures | A simple numerical method to study the effect of an applied magnetic field on
the energy spectrum of non-periodic superlattice structures is presented. The
magnetic field could be either parallel or perpendicular to the growth
direction. Our method is based on the transfer matrix technique and on the
effective mass app... | 1992-10-22 | 2009-10-22 | [
"cond-mat"
] | H. Cruz, F. Piazza, and L. Pavesi |
cond-mat/9210019 | Response functions and Spectrum of Collective Excitations of Fractional
Quantum Hall Effect Systems | We calculate the electromagnetic response functions of a Fractional Quantum
Hall system within the framework of the fermion Chern-Simons theory for the
Fractional Hall Effect (FQHE) which we developed before. Our results are valid
in a semiclassical expansion around the average field approximation (AFA). We
reexamine t... | 1992-10-21 | 2009-10-22 | [
"cond-mat"
] | Ana Lopez and Eduardo Fradkin |
cond-mat/9210018 | Hysteresis and hierarchies: dynamics of disorder-driven first-order
phase transformations | We use the zero-temperature random-field Ising model to study hysteretic
behavior at first-order phase transitions. Sweeping the external field through
zero, the model exhibits hysteresis, the return-point memory effect, and
avalanche fluctuations. There is a critical value of disorder at which a jump
in the magnetizat... | 1992-10-20 | 2009-01-23 | [
"cond-mat"
] | James P. Sethna, Karin Dahmen, Sivan Kartha, James A. Krumhansl, Bruce
W. Roberts, and Joel D. Shore |
cond-mat/9210017 | Biharmonic pattern selection | A new model to describe fractal growth is discussed which includes effects
due to long-range coupling between displacements $u$. The model is based on the
biharmonic equation $\nabla^{4}u =0$ in two-dimensional isotropic defect-free
media as follows from the Kuramoto-Sivashinsky equation for pattern formation
-or, alte... | 1992-10-20 | 2009-10-22 | [
"cond-mat"
] | Wei Wang and E. Canessa (Condensed Matter Group, ICTP, Trieste, Italy) |
cond-mat/9210016 | Spin-Charge separation in a model of two coupled chains | A model of interacting electrons living on two chains coupled by a transverse
hopping $t_\perp$, is solved exactly by bosonization technique. It is shown
that $t_\perp$ does modify the shape of the Fermi surface also in presence of
interaction, although charge and spin excitations keep different velocities
$u_\rho$, $u... | 1992-10-19 | 2009-10-22 | [
"cond-mat"
] | M. Fabrizio and A. Parola |
cond-mat/9210015 | Many Body Theory of Charge Transfer in Hyperthermal Atomic Scattering | We use the Newns-Anderson Hamiltonian to describe many-body electronic
processes that occur when hyperthermal alkali atoms scatter off metallic
surfaces. Following Brako and Newns, we expand the electronic many-body
wavefunction in the number of particle-hole pairs (we keep terms up to and
including a single particle-h... | 1992-10-17 | 2009-10-22 | [
"cond-mat"
] | J. B. Marston, D. R. Andersson, E. R. Behringer, B. H. Cooper, C. A.
DiRubio, G. A. Kimmel, and C. Richardson |
cond-mat/9210012 | Ordering and finite-size effects in the dynamics of one-dimensional
transient patterns | We introduce and analyze a general one-dimensional model for the description
of transient patterns which occur in the evolution between two spatially
homogeneous states. This phenomenon occurs, for example, during the
Freedericksz transition in nematic liquid crystals.The dynamics leads to the
emergence of finite domai... | 1992-10-16 | 2009-10-22 | [
"cond-mat"
] | A. Amengual, E. Hernandez-Garcia, and M. San Miguel |
cond-mat/9210013 | Numerical studies of tunneling in a nonharmonic time-dependent potential | Azbel' has recently carried out a WKB-analysis of the effects of a
nonharmonic time-dependent perturbation embedded in an opaque potential
barrier. He suggests the existence of three different transmission regimes:
direct tunneling, activation assisted tunneling, and elevator resonant
activation. We address the same pr... | 1992-10-16 | 2009-10-22 | [
"cond-mat"
] | J. A. St{\o}vneng and A.-P. Jauho |
cond-mat/9210014 | On the Scale-Invariant Distribution of the Diffusion Coefficient for
Classical Particles Diffusing in Disordered Media.- | The scaling form of the whole distribution P(D) of the random diffusion
coefficient D(x) in a model of classically diffusing particles is investigated.
The renormalization group approach above the lower critical dimension d=0 is
applied to the distribution P(D) using the n-replica approach. In the annealed
approximatio... | 1992-10-16 | 2009-10-22 | [
"cond-mat",
"hep-th"
] | Yan-Chr Tsai and Yonathan Shapir |
cond-mat/9210011 | Generalized spin density wave state of the Hubbard model on the C12 and
C60 clusters | The one-band Hubbard model at half-filling on a truncated tetrahedron
(C$_{12}$), and on the C$_{60}$ molecule is studied. Within the Hartree-Fock
approximation, we find a magnetic-like instability of the `Fermi sea' towards a
spin-ordered phase for an intermediate value of the coupling ${\rm
(U/t)_c}\approx 2.6$. The ... | 1992-10-14 | 2014-10-13 | [
"cond-mat"
] | L. Bergomi, J. P. Blaizot, Th. Jolicoeur and E. Dagotto |
cond-mat/9210008 | String Defects in Condensed Matter Systems as Optical Fibers | We analyze the core structure of string defects in various condensed matter
systems, such as nematic liquid crystals and superfluid helium, and argue that
in certain cases the variation of the refractive index near the core is such
that it can lead to total internal reflection of light travelling along the
string core.... | 1992-10-14 | 2007-05-23 | [
"cond-mat",
"hep-ph"
] | Ajit Mohan Srivastava |
cond-mat/9210010 | Dimerization structures on the metallic and semiconducting fullerene
tubules with half-filled electrons | Possible dimerization patterns and electronic structures in fullerene tubules
as the one-dimensional pi-conjugated systems are studied with the extended
Su-Schrieffer-Heeger model. We assume various lattice geometries, including
helical and nonhelical tubules. The model is solved for the half-filling case
of $\pi$-elec... | 1992-10-14 | 2007-05-23 | [
"cond-mat"
] | Kikuo Harigaya (Fundamental Physics Section, Physical Science
Division, Electrotechnical Laboratory, Japan), Mitsutaka Fujita (Institute of
Materials Science, University of Tsukuba, Japan) |
cond-mat/9210009 | Phase Ordering Dynamics in the Continuum q-state Clock Model | The order parameter correlation function of the nonconserved, continuum
$q$-state clock model is evaluated in the asymptotic scaling limit, during the
phase ordering process after a temperature quench. The short distance behavior
of the order parameter scaling function exhibits explicit crossover from that
characterist... | 1992-10-14 | 2009-10-22 | [
"cond-mat"
] | Fong Liu and Gene F. Mazenko |
cond-mat/9210007 | Bosonization and Fermion Liquids in Dimensions Greater Than One | (Revised, with postscript figures appended, corrections and added comments.)
We develop and describe new approaches to the problem of interacting Fermions
in spatial dimensions greater than one. These approaches are based on
generalizations of powerful tools previously applied to problems in one spatial
dimension. We b... | 1992-10-10 | 2009-10-22 | [
"cond-mat",
"hep-th"
] | A. Houghton and J. B. Marston |
cond-mat/9210006 | Once again about interchain hopping | Renormalization group equations and a phase diagram are derived for a system
of two chains with a single-electron hopping between chains in order to correct
the results of a recent paper by F.~V.~Kusmartsev, A.~Luther, and A.~Nersesyan,
Pis'ma v Zh.\ Exp.\ Teor.\ Fiz.\ {\bf 55}, 692 (1992) [JETP Lett.\ {\bf 55},
724 (1... | 1992-10-09 | 2008-02-03 | [
"cond-mat"
] | Victor M. Yakovenko |
cond-mat/9210005 | Multicanonical Study of the 3D Ising Spin Glass | We simulated the Edwards-Anderson Ising spin glass model in three dimensions
via the recently proposed multicanonical ensemble. Physical quantities such as
energy density, specific heat and entropy are evaluated at all temperatures. We
studied their finite size scaling, as well as the zero temperature limit to
explore ... | 1992-10-07 | 2009-10-22 | [
"cond-mat",
"hep-lat"
] | B.A.Berg, T.Celik and U.Hansmann |
cond-mat/9210004 | A new Proposal for a Quasielectron Trial Wavefunction for the FQHE on a
Disk | In this letter, we propose a new quasielectron trial wavefunction for $N$
interacting electrons in two dimensions moving in a strong magnetic field in a
disk geometry. Requiring that the trial wavefunction exhibits the correct
filling factor of a quasielectron wavefunction, we obtain $N+1$ angular
momentum eigenfunctio... | 1992-10-06 | 2010-12-17 | [
"cond-mat",
"hep-th"
] | Marcus Kasner and Walter Apel (Physikalisch-Technische Bundesanstalt
Braunschweig, PF 3345, D-W-3300 Braunschweig, Germany) |
cond-mat/9210003 | Pressure Induced Topological Phase Transitions in Membranes | Some highly unusual features of a lipid-water liquid crystal are revealed by
high pressure x-ray diffraction, light scattering and dilatometric studies of
the lamellar (bilayer $L_{\alpha}$) to nonlamellar inverse hexagonal ($H_{II}$)
phase transition. (i) The size of the unit cell of the $H_{II}$ phase increases
with ... | 1992-10-04 | 2009-10-22 | [
"cond-mat"
] | P.T.C. So, Sol M. Gruner and Shyamsunder Erramilli |
cond-mat/9210002 | Exact Solution of a Phase Separation Model with Conserved Order
Parameter Dynamics | Pairwise particle-exchange model on a linear lattice is solved exactly by a
new rate-equation method. Lattice sites are occupied by particles A and B which
can exchange irreversibly provided the local energy in reduced. Thus, the model
corresponds to a zero-temperature Kawasaki-type phase separation process. Due
to loc... | 1992-10-02 | 2014-10-13 | [
"cond-mat",
"hep-lat"
] | Vladimir Privman |
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