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/9505050 | Semiclassical analysis of the quantum interference corrections to the
conductance of mesoscopic systems | The Kubo formula for the conductance of a mesoscopic system is analyzed
semiclassically, yielding simple expressions for both weak localization and
universal conductance fluctuations. In contrast to earlier work which dealt
with times shorter than $O(\log \hbar^{-1})$, here longer times are taken to
give the dominant c... | 1995-05-12 | 2009-10-28 | [
"cond-mat"
] | Nathan Argaman (ITP, UCSB) |
cond-mat/9505057 | Surface States, Surface Metal-Insulator, and Surface Insulator-Metal
Transitions | I present an informal discussion of various cases where two-dimensional
surface metal-insulator structural and charge-density-wave instabilities driven
by partly filled surface states have been advocated. These include
reconstructions of clean semiconductor surfaces and of W(100) and Mo(100), as
well as anomalies on th... | 1995-05-12 | 2007-05-23 | [
"cond-mat",
"mtrl-th"
] | E. TOSATTI (SISSA/ICTP, I-34014 Trieste) |
cond-mat/9505058 | Coherent Magnetotransport Through an Artificial Molecule | The conductance in an extended multiband Hubbard model describing linear
arrays of up to ten quantum dots is calculated via a Lanczos technique. A
pronounced suppression of certain resonant conductance peaks in an applied
magnetic field due to a density-dependent spin-polarization transition is
predicted to be a clear ... | 1995-05-12 | 2008-02-03 | [
"cond-mat"
] | C. A. Stafford and S. Das Sarma |
cond-mat/9505043 | ac-Field-Controlled Anderson Localization in Disordered Semiconductor
Superlattices | An ac field, tuned exactly to resonance with the Stark ladder in an ideal
tight binding lattice under strong dc bias, counteracts Wannier-Stark
localization and leads to the emergence of extended Floquet states. If there is
random disorder, these states localize. The localization lengths depend
non-monotonically on the... | 1995-05-11 | 2009-10-28 | [
"cond-mat"
] | Martin Holthaus, Gerald H. Ristow and Daniel W. Hone |
cond-mat/9505048 | Conformal Anomaly and Critical Exponents of the XY-Ising Model | We use extensive Monte Carlo transfer matrix calculations on infinite strips
of widths $L$ up to 30 lattice spacing and a finite-size scaling analysis to
obtain critical exponents and conformal anomaly number $c$ for the
two-dimensional $XY$-Ising model. This model is expected to describe the
critical behavior of a cla... | 1995-05-11 | 2009-10-28 | [
"cond-mat",
"hep-lat"
] | M.P. Nightingale, E. Granato and J.M. Kosterlitz |
cond-mat/9505044 | Anomalously slow relaxation in the diluted Ising model below the
percolation threshold | The relaxational behaviour of the bond-diluted two-dimensional Ising model
below the percolation threshold is studied using Monte Carlo techniques. The
non-equilibrium decay of the magnetization,M(t), and the relaxation of the
equilibrium spin-spin autocorrelation function, C(t), are monitored. The
behaviour of both C(... | 1995-05-11 | 2015-06-25 | [
"cond-mat"
] | S. Jain |
cond-mat/9505049 | Exact solution of A-D Temperley-Lieb Models | We solve for the spectrum of quantum spin chains based on representations of
the Temperley-Lieb algebra associated with the quantum groups ${\cal U}_q(X_n }
for $X_n = A_1,B_n,C_n$ and $D_n$. We employ a generalization of the coordinate
Bethe-Ansatz developed previously for the deformed biquadratic spin one chain.
As e... | 1995-05-11 | 2015-06-25 | [
"cond-mat"
] | R. Koberle, A. Lima-Santos |
cond-mat/9505046 | Renormalization group analysis of the anisotropic Kardar-Parasi-Zhang
equation with spatially correlated noise | We analyze the anisotropic Kardar-Parisi-Zhang equation in general substrate
dimensions $d'$ with spatially correlated noise, $\langle\tilde
\eta({\bf{k}},\omega)\rangle=0$ and $\langle\tilde \eta({\bf{k}},\omega) \tilde
\eta({\bf{k}}',\omega')\rangle$
$=2D(k)\delta^{d'}({\bf{k}}+{\bf{k}}')\delta(\omega+\omega')$ where... | 1995-05-11 | 2009-10-28 | [
"cond-mat"
] | H. Jeong, B. Kahng, and D. Kim |
cond-mat/9505045 | ELECTRONIC STATES IN GRADED-GAP JUNCTIONS WITH BAND INVERSION | We theoretically study electronic states in graded-gap junctions of IV-VI
compounds with band inversion. Using a two-band model within the ${\bf
k}\cdot{\bf p}$ approximation and assuming that the gap and the gap centre
present linear profiles, we demonstrate the existence of a set of localized
states along the growth ... | 1995-05-11 | 2016-08-31 | [
"cond-mat"
] | Francisco Dominguez-Adame |
cond-mat/9505047 | THE ANOMALOUS DIFFUSION IN HIGH MAGNETIC FIELD AND THE QUASIPARTICLE
DENSITY OF STATES | We consider a disordered two-dimensional electronic system in the limit of
high magnetic field at the metal-insulator transition. Density of states close
to the Fermi level acquires a divergent correction to the lowest order in
electron-electron interaction and shows a new power-law dependence on the
energy, with the p... | 1995-05-11 | 2009-10-28 | [
"cond-mat"
] | Igor F. Herbut and Zlatko Tesanovic (Johns Hopkins University) |
cond-mat/9505041 | Time dependent Ginzburg-Landau equation for an N-component model of
self-assembled fluids | We study the time evolution of an N-component model of bicontinuous
microemulsions based on a time dependent Ginzburg-Landau equation quenched from
an high temperature uncorrelated state to the low temperature phases. The
behavior of the dynamical structure factor $\tilde C(k,t)$ is obtained, in each
phase, in the fram... | 1995-05-10 | 2007-05-23 | [
"cond-mat"
] | Umberto Marini Bettolo Marconi, Federico Corberi (Dipartimento di
Matematica e Fisica, Universit\`a di Camerino, Italy) |
cond-mat/9505040 | Superfluidity of Hydrogenlike Gas in a Strong Magnetic Field ? | The recent claim that in a strong magnetic field hydrogenlike gas (e.g.,
excitons in certain semiconductors, neutron star surface layers) becomes
superfluid is refuted. Molecules form by strong covalent bond along the
magnetic field axis, which prohibits Bose-Einstein condensation. | 1995-05-10 | 2009-10-28 | [
"cond-mat",
"astro-ph"
] | Dong Lai (Caltech) |
cond-mat/9505042 | Thermal Fluctuations in d-wave Layered Superconductors | We study the thermal fluctuations of anisotropic order parameters (OP) in
layered superconductors. In particular, for copper oxides and a d-wave OP, we
present some experimental consequences of fluctuations in the direction normal
to the layers. It is shown that the c-axis penetration depth $\lambda_c$ can
have a "diso... | 1995-05-10 | 2015-06-25 | [
"cond-mat"
] | Muriel Ney-Nifle and Marc Gabay |
cond-mat/9505039 | Influence of the electric field on edge dislocations in smectics | The electric field applied perpendicularly to smectic layers breaks the
rotational symmetry of the system. Consequently, the elastic energy associated
with distortions induced by an edge dislocation diverges logarithmically with
the size of the system. In freely suspended smectic films the dislocations in
the absence o... | 1995-05-09 | 2009-10-28 | [
"cond-mat"
] | R.Holyst and P.Oswald |
cond-mat/9505036 | The Irreducible String and an Infinity of Additional Constants of Motion
in a Deposition-Evaporation Model on a Line | We study a model of stochastic deposition-evaporation with recombination, of
three species of dimers on a line. This model is a generalization of the model
recently introduced by Barma {\it et. al.} (1993 {\it Phys. Rev. Lett.} {\bf
70} 1033) to $q\ge 3$ states per site. It has an infinite number of constants
of motion... | 1995-05-09 | 2009-10-28 | [
"cond-mat"
] | M. K. Hari Menon and Deepak Dhar |
cond-mat/9505038 | Improved Perturbation Theory for the Kardar-Parisi-Zhang Equation | We apply a number of schemes which variationally improve perturbation theory
for the Kardar-Parisi-Zhang equation in order to extract estimates for the
dynamic exponent z. The results for the various schemes show the same broad
features, giving closer agreement with numerical simulations in low dimensions
than self-con... | 1995-05-09 | 2009-10-28 | [
"cond-mat"
] | T. Blum and A. J. McKane (University of Manchester) |
cond-mat/9505035 | Coulomb blockade oscillations of conductance in the regime of strong
tunneling | We study the transport through a quantum dot coupled to two leads by
single-mode point contacts. The linear conductance is calculated analytically
as a function of a gate voltage and temperature T in the case when transmission
coefficients of the contacts are close to unity. As a function of the gate
voltage, the condu... | 1995-05-09 | 2009-10-28 | [
"cond-mat"
] | A. Furusaki and K. A. Matveev (MIT) |
cond-mat/9505034 | Magnetoresistance of the Double-Exchange Model in Infinite Dimension | Double-exchange model in infinite dimension is studied as the strong Hund's
coupling limit $J\to\infty$ of the Kondo lattice model. Several quantities such
as Green's function and the d.c.\ conductivity are calculated in analytical
forms. Magnetoresistance in lightly doped (La,Sr)MnO$_3$ is reproduced very
well. | 1995-05-09 | 2009-10-28 | [
"cond-mat"
] | Nobuo Furukawa (ISSP, Univ. Tokyo) |
cond-mat/9505037 | Variational Schemes in the Fokker-Planck Equation | We investigate variational methods for finding approximate solutions to the
Fokker-Planck equation, especially in cases lacking detailed balance. These
schemes fall into two classes: those in which a Hermitian operator is
constructed from the (non-Hermitian) Fokker-Planck operator, and those which
are based on soluble ... | 1995-05-09 | 2009-10-28 | [
"cond-mat"
] | T. Blum and A. J. McKane (University of Manchester) |
cond-mat/9505026 | Two - Dimensional Electron Liquid in a Weak Magnetic Field | We present an effective theory describing the low-energy properties of an
interacting 2D electron gas at large non-integer filling factors $\nu\gg 1$.
Assuming that the interaction is sufficiently weak, $r_s < 1$, we integrate out
all the fast degrees of freedom, and derive the effective Hamiltonian acting in
the Fock ... | 1995-05-08 | 2009-10-28 | [
"cond-mat"
] | I. L. Aleiner and L. I. Glazman |
cond-mat/9505032 | Superconductivity Fluctuations in a One-dimensional Two Band
Electron-Phonon Model with Strong Repulsive Interactions | We study a one-dimensional, two band model with short range electron-electron
repulsions (onsite $U$ and nearest-neighbour $V$ terms) and electron-phonon
coupling. We show that there is a region of $U$,$V$ and band filling in which
singlet superconductivity fluctuations are dominant. This region is absent
without elect... | 1995-05-08 | 2008-02-03 | [
"cond-mat"
] | S.I.Matveenko, A.R.Bishop and A.Balatsky |
cond-mat/9505029 | Electrons, pseudoparticles, and quasiparticles in one-dimensional
interacting electronic systems | We find the singular transformation between the electron operator and the
pseudoparticle operators for the Hubbard chain. We generalize the concept of
quasiparticle to one-dimensional electronic systems which in 1D refers to
many-pseudoparticle objects. We obtain explicit results for the electron
renormalization factor... | 1995-05-08 | 2007-05-23 | [
"cond-mat"
] | J. M. P. Carmelo, A. H. Castro Neto and N. M. R. Peres |
cond-mat/9505033 | Bosonization of One-Dimensional Exclusons and Characterization of
Luttinger Liquids | We achieve a bosonization of one-dimensional ideal gas of exclusion
statistics $\lambda$ at low temperatures, resulting in a new variant of $c=1$
conformal field theory with compactified radius $R=\sqrt{1/\lambda}$. These
ideal excluson gases exactly reproduce the low-$T$ critical properties of
Luttinger liquids, so th... | 1995-05-08 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | Yong-Shi Wu and Yue Yu |
cond-mat/9505031 | Exact non-equilibrium DC shot noise in Luttinger liquids and fractional
quantum Hall devices | A point contact in a Luttinger liquid couples the left- and right-moving
channels, producing shot noise. We calculate exactly the DC shot noise at zero
temperature in the out-of-equilibrium steady state where current is flowing.
Integrability of the interaction ensures the existence of a quasiparticle basis
where quasi... | 1995-05-08 | 2009-10-28 | [
"cond-mat"
] | P. Fendley, A.W.W. Ludwig and H. Saleur |
cond-mat/9505027 | Abelian Hall Fluids and Edge States: a Conformal Field Theory Approach | We show that a Coulomb gas Vertex Operator representation of 2D Conformal
Field Theory gives a complete description of abelian Hall fluids: as an
euclidean theory in two space dimensions leads to the construction of the
ground state wave function for planar and toroidal geometry and characterizes
the spectrum of low en... | 1995-05-08 | 2012-09-27 | [
"cond-mat"
] | A. De Martino and R. Musto |
cond-mat/9505030 | Parity Fluctuations Between Coulomb Blockaded Superconducting Islands | We find that if two superconducting islands of different number parity are
linked by a tunnel junction the unpaired electron in the odd island has a
tendency to tunnel into the even island. This process leads to fluctuations in
time of the number parity of each island, giving rise to a random telegraph
noise spectrum w... | 1995-05-08 | 2009-10-28 | [
"cond-mat",
"supr-con"
] | Boldizsar Janko and Vinay Ambegaokar |
cond-mat/9505025 | Stochastic Resonance in 3D Ising Ferromagnets | Finite 3D Ising ferromagnets are studied in periodic magnetic fields both by
computer simulations and mean-field theoretical approaches. The phenomenon of
stochastic resonance is revealed. The characteristic peak obtained for the
correlation function between the external oscillating magnetic field and
magnetization ver... | 1995-05-06 | 2009-10-28 | [
"cond-mat"
] | Zoltan Neda (Univ. of Bergen, Norway) |
cond-mat/9505023 | Casimir effect around disclinations | This communication concerns the structure of the electromagnetic quantum
vacuum in a disclinated insulator. It is shown that a nonzero vacuum energy
density appears when the rotational symmetry of a continuous insulating elastic
medium is broken by a disclination. An explicit expression is given for this
Casimir energy... | 1995-05-05 | 2009-10-28 | [
"cond-mat"
] | Fernando Moraes (Institute for Advanced Study, Princeton) |
cond-mat/9505024 | Interactions, Distribution of Pinning Energies, and Transport in the
Bose Glass Phase of Vortices in Superconductors | We study the ground state and low energy excitations of vortices pinned to
columnar defects in superconductors, taking into account the long--range
interaction between the fluxons. We consider the ``underfilled'' situation in
the Bose glass phase, where each flux line is attached to one of the defects,
while some pins ... | 1995-05-05 | 2009-10-28 | [
"cond-mat"
] | Uwe C. T"auber and David R. Nelson (Harvard University) |
cond-mat/9505022 | Effective action approach to a bi-layer frustrated antiferromagnet | A bi-layer quantum frustrated antiferromagnet is studied using an effective
action approach. The action derived from the microscopical Hamiltonian has the
form of the O(3) non-linear sigma model. It is solved in the mean field
approximation with the ultraviolet cut off chosen to fit numerical results. The
obtained phas... | 1995-05-05 | 2009-10-28 | [
"cond-mat"
] | A. Dotsenko (UNSW) |
cond-mat/9505021 | Berry phase, hyperorbits, and the Hofstadter spectrum | We develop a semiclassical theory for the dynamics of electrons in a magnetic
Bloch band, where the Berry phase plays an important role. This theory,
together with the Boltzmann equation, provides a framework for studying
transport problems in high magnetic fields. We also derive an Onsager-like
formula for the quantiz... | 1995-05-04 | 2009-10-28 | [
"cond-mat"
] | M.C.Chang and Q.Niu |
cond-mat/9505016 | What happens to the quantum Hall effect when magnetic-field-induced
spin-density wave moves | The influence of the motion of a magnetic-field-induced spin-density wave
(FISDW) on the quantum Hall effect in a quasi-one-dimensional conductor is
studied theoretically. In the ideal case of a free FISDW, it is found that the
counterflow of the FISDW precisely cancels the quantum Hall current, so the
resultant Hall c... | 1995-05-04 | 2007-05-23 | [
"cond-mat"
] | Victor M. Yakovenko and Hsi-Sheng Goan (University of Maryland) |
cond-mat/9505019 | Critical behavior for mixed site-bond directed percolation | We study mixed site-bond directed percolation on 2D and 3D lattices by using
time-dependent simulations. Our results are compared with rigorous bounds
recently obtained by Liggett and by Katori and Tsukahara. The critical
fractions $p_{site}^c$ and $p_{bond}^c$ of sites and bonds are extremely well
approximated by a re... | 1995-05-04 | 2009-10-28 | [
"cond-mat"
] | A.Yu. Tretyakov and N. Inui |
cond-mat/9505017 | Negative hopping magnetoresistance of two-dimensional electron gas in a
smooth random potential | We show that the tunnel coupling between semiclassical states localized in
different minima of a smooth random potential increases when magnetic field is
applied. This increase originates from the difference in gauge factors which
electron wave functions belonging to different electron ``lakes'' acquire in
the presence... | 1995-05-04 | 2009-10-28 | [
"cond-mat"
] | M. E. Raikh, L. I. Glazman |
cond-mat/9505020 | Frustration - how it can be measured | A misfit parameter is used to characterize the degree of frustration of
ordered and disordered systems. It measures the increase of the ground-state
energy due to frustration in comparison with that of a relevant reference
state. The misfit parameter is calculated for various spin-glass models. It
allows one to compare... | 1995-05-04 | 2009-10-28 | [
"cond-mat"
] | S. Kobe and T. Klotz |
cond-mat/9505018 | Lifting of Multiphase Degeneracy by Quantum Fluctuations | We study the effect of quantum fluctuations on the multiphase point of the
Heisenberg model with first- and second-neighbor competing interactions and
strong uniaxial spin anisotropy $D$. By studying the structure of perturbation
theory we show that the multiphase degeneracy which exists for $S=\infty$
(i.e., for the A... | 1995-05-04 | 2009-10-28 | [
"cond-mat"
] | A. B. Harris, C. Micheletti and J. M. Yeomans |
cond-mat/9505007 | Relation between Barrier Conductance and Coulomb Blockade Peak Splitting
for Tunnel-Coupled Quantum Dots | We study the relation between the barrier conductance and the Coulomb
blockade peak splitting for two electrostatically equivalent dots connected by
tunneling channels with bandwidths much larger than the dot charging energies.
We note that this problem is equivalent to a well-known single-dot problem and
present solut... | 1995-05-03 | 2009-10-28 | [
"cond-mat"
] | John M. Golden and Bertrand I. Halperin (Harvard) |
cond-mat/9505011 | Magnetic and Transport Properties of the Kondo Lattice Model with
Ferromagnetic Exchange Coupling | The Kondo lattice model with Hund's ferromagnetic spin coupling is
investigated as a microscopic model of the perovskite-type $3d$ manganese oxide
(R,A)MnO$_3$ where $R$ and $A$ are rare earth element and alkaline earth
element, respectively. We take the classical spin limit $S=\infty$ for the
simplicity of the calcula... | 1995-05-03 | 2008-02-03 | [
"cond-mat"
] | Nobuo Furukawa (ISSP, Univ. Tokyo) |
cond-mat/9505014 | A Testbench for the Nested Dipole Hypothesis of Kosterlitz and Thouless | We consider the two-dimensional one-component plasma without a background and
confined to a half plane near a metal wall. The particles are also subjected to
an external potential acting perpendicular to the wall with an inverse power
law Boltzmann factor. The model has a known solvable isotherm which exhibits a
Koster... | 1995-05-03 | 2009-10-28 | [
"cond-mat"
] | A. Alastuey and P.J. Forrester |
cond-mat/9505015 | Correlations in two-component log-gas systems | A systematic study of the properties of particle and charge correlation
functions in the two-dimensional Coulomb gas confined to a one-dimensional
domain is undertaken. Two versions of this system are considered: one in which
the positive and negative charges are constrained to alternate in sign along
the line, and the... | 1995-05-03 | 2009-10-28 | [
"cond-mat"
] | A. Alastuey and P.J. Forrester |
cond-mat/9505010 | Semiclassical Description of Tunneling in Mixed Systems: The Case of the
Annular Billiard | We study quantum-mechanical tunneling between symmetry-related pairs of
regular phase space regions that are separated by a chaotic layer. We consider
the annular billiard, and use scattering theory to relate the splitting of
quasi-degenerate states quantized on the two regular regions to specific paths
connecting them... | 1995-05-03 | 2009-10-28 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | Eyal Doron and Steffen D. Frischat |
cond-mat/9505013 | Viscosities of the Gay-Berne nematic liquid crystal | We present molecular dynamics simulation measurements of the viscosities of
the Gay-Berne phenomenological model of liquid crystals in the nematic and
isotropic phases. The temperature dependence of the rotational and shear
viscosities, including the nonmonotonic behavior of one shear viscosity are in
good agreement wi... | 1995-05-03 | 2009-10-28 | [
"cond-mat",
"chem-ph",
"mtrl-th"
] | A. M. Smondyrev, G. B. Loriot and R. A. Pelcovits |
cond-mat/9505009 | Magnetic Transition Temperature of (La,Sr)MnO$_3$ | Using the Kondo lattice model with classical spins in infinite dimension,
magnetic phase transition in the perovskite-type $3d$ transition-metal oxide
(La,Sr)MnO$_3$ is theoretically studied. On the Bethe lattice, the
self-consistency equations are solved exactly. Curie temperatures at the region
of double-exchange f... | 1995-05-03 | 2016-08-31 | [
"cond-mat"
] | Nobuo Furukawa (ISSP, Univ. Tokyo) |
cond-mat/9505008 | ON THERMODYNAMICS OF MULTISPECIES ANYONS | We address the problem of multispecies anyons, i.e. particles of different
species whose wave function is subject to anyonlike conditions. The cluster and
virial coefficients are considered. Special attention is paid to the case of
anyons in the lowest Landau level of a strong magnetic field, when it is
possible (i) to... | 1995-05-03 | 2016-08-31 | [
"cond-mat"
] | Serguei B. Isakov, Stefan Mashkevich, St\'ephane Ouvry (Medical
Radiology Research Center, Obninsk, Russia, Institute for Theoretical
Physics, Kiev, Ukraine, Division de Physique Th\'eorique, IPN, Orsay) |
cond-mat/9505006 | Phase Transitions in the One-Dimensional Pair-Hopping Model: a
Renormalization Group Study | The phase diagram of a one-dimensional tight-binding model with a
pair-hopping term (amplitude V) has been the subject of some controvery. Using
two-loop renormalization group equations and the density matrix renormalization
group with lengths L<=60, we argue that no spin-gap transition occurs at
half-filling for posit... | 1995-05-02 | 2009-10-28 | [
"cond-mat"
] | Arnold Sikkema and Ian Affleck (UBC, CIAR) |
cond-mat/9505003 | Fitness landscapes and evolution | The concept of fitness is introduced, and a simple derivation of the
Fundamental Theorem of Natural Selection (which states that the average fitness
of a population increases if its variance is nonzero) is given. After a short
discussion of the adaptative walk model, a short review is given of the
quasispecies approach... | 1995-05-02 | 2008-02-03 | [
"cond-mat",
"q-bio.PE"
] | Luca Peliti |
cond-mat/9505004 | Phase diagram of the two-dimensional t--J model at low doping | The phase diagram of the planar t--J model at small hole doping is
investigated by finite size scaling of exact diagonalisation data of NXN
clusters (up to 26). Hole-droplet binding energies, compressibility and static
spin and charge correlations are calculated. Short range antiferromagnetic
correlations can produce a... | 1995-05-02 | 2009-10-28 | [
"cond-mat"
] | D. Poilblanc (Lab. de Physique Quantique, Universit\'e Paul Sabatier) |
cond-mat/9505005 | The Anomalous Hall Effect in YBa$_2$Cu$_3$O$_7$ | The temperature dependence of the normal state Hall effect and
magnetoresistance in YBa$_2$Cu$_3$O$_7$ is investigated using the Nearly
Antiferromagnetic Fermi Liquid description of planar quasiparticles. We find
that highly anisotropic scattering at different regions of the Fermi surface
gives rise to the measured ano... | 1995-05-02 | 2009-10-28 | [
"cond-mat"
] | Branko P. Stojkovic and David Pines (University of Illinois) |
cond-mat/9505001 | Dynamic Susceptibility and Phonon Anomalies in the Bilayer $t$-$J$ Model | We consider a bilayer version of the extended $t$-$J$ model, with a view to
computing the form of certain experimentally observable properties. Using the
slave-boson decomposition, we show at the mean-field level that in the bilayer
system the existence of in-plane $d$-wave singlet pairing excludes any
interplane singl... | 1995-05-01 | 2009-10-28 | [
"cond-mat"
] | B. Normand, H. Kohno and H. Fukuyama (Univ. of Tokyo) |
cond-mat/9505002 | Nernst Effect, Seebeck Effect, and Vortex Dynamics in the Mixed State of
Superconductors | Based on the vortex dynamics with the Magnus force and a two-fluid model we
have derived a set of explicit expressions between the Nernst and Seebeck
coefficients, and the Hall and longitudinal resistivities in the linear
response regime of the mixed state of superconductors. Effects of vortex
pinning are included. The... | 1995-05-01 | 2008-02-03 | [
"cond-mat"
] | P. Ao |
cond-mat/9504122 | Spin-Charge Separation at Finite Temperature in the Supersymmetric t-J
Model with Long-Range Interactions | Thermodynamics is derived rigorously for the 1D supersymmetric {\it t-J}
model and its SU($K,1$) generalization with inverse-square exchange. The system
at low temperature is described in terms of spinons, antispinons, holons and
antiholons obeying fractional statistics. They are all free and make the spin
susceptibili... | 1995-04-30 | 2009-10-28 | [
"cond-mat"
] | Yoshio Kuramoto and Yusuke Kato |
cond-mat/9504121 | Brownian motion of Massive Particle in a Space with Curvature and
Torsion and Crystals with Defects | We develop a theory of Brownian motion of a massive particle, including the
effects of inertia (Kramers' problem), in spaces with curvature and torsion.
This is done by invoking the recently discovered generalized equivalence
principle, according to which the equations of motion of a point particle in
such spaces can b... | 1995-04-30 | 2015-06-25 | [
"cond-mat"
] | H. Kleinert and S.V. Shabanov |
cond-mat/9504117 | Quasiparticle current in ballistic NcS'S junctions | Nonstationary properties of ballistic constrictions $NcS^{\prime}S$ with
disordered $S^{\prime}S$ electrodes are analyzed theoretically. Amplitudes of
Andreev and normal reflections at the constriction are related to the solutions
of a stationary Green function problem in an inhomogeneous $% S^{\prime}S$
electrode in a... | 1995-04-28 | 2007-05-23 | [
"cond-mat"
] | A.A.Golubov (KFA-Juelich, Germany; and Institute of Solid State
Physics, Chernogolovka, Russia) and M.Yu.Kupriyanov (KFA-Juelich, Germany;
and Moscow State University, Russia) |
cond-mat/9504119 | Chiral and continuous symmetry of an XY spin glass on a tube lattice | We analyse the chiral symmetry in the random $\pm J$ $XY$ model on a $N\times
2$ square lattice with periodic boundary conditions in the transverse
direction. This ``tube" lattice may be seen as a two-dimensional lattice of
which one dimension has been compactified. In the Villain formulation the
discrete-valued {\em c... | 1995-04-28 | 2016-08-31 | [
"cond-mat"
] | M.J. Thill, M. Ney-Nifle, and H.J. Hilhorst |
cond-mat/9504118 | Transport coefficients, effective charge and mass for multicomponent
systems with fractional exclusion statistics | Transport properties of the multicomponent quantum many-body systems obeying
Haldane's fractional exclusion statistics are studied in one dimension. By
computing the finite-size spectrum under twisted boundary conditions, we
explicitly express the conductivity and the conductance in terms of statistical
interactions. T... | 1995-04-28 | 2009-10-28 | [
"cond-mat"
] | T. Fukui and N. Kawakami |
cond-mat/9504120 | Non Fermi Liquid Behaviour near a $T=0$ spin-glass transition | In this paper we study the competition between the Kondo effect and RKKY
interactions near the zero-temperature quantum critical point of an Ising-like
metallic spin-glass. We consider the mean-field behaviour of various physical
quantities. In the `quantum- critical regime' non-analytic corrections to the
Fermi liquid... | 1995-04-28 | 2009-10-28 | [
"cond-mat"
] | Anirvan M. Sengupta and Antoine Georges |
cond-mat/9504115 | SELFCONSISTENT CURRENT-VOLTAGE CHARACTERISTICS OF NORMAL-SUPERCONDUCTOR
INTERFACES | We study the nonlinear transport properties of NS (normal-superconductor) and
NSN structures by means of a self-consistent microscopic description. A nonzero
superfluid velocity causes the various quasiparticle channels within S to open
at different voltages. The gap reduction is very sensitive to the details of
quasip... | 1995-04-27 | 2016-08-15 | [
"cond-mat"
] | J. S\'anchez Ca\~nizares and F. Sols (Departamento de F\'isica de la
Materia Condensada, C-XII Universidad Aut\'onoma de Madrid) |
cond-mat/9504111 | Modeling Morphology of Cities and Towns | Predicting urban growth is important for practical reasons, and also for the
challenge it presents to theoretical frameworks for cluster dynamics. Recently,
the model of diffusion limited aggregation (DLA) has been applied to describe
urban growth, and results in tree-like dendritic structures which have a core
or ``ce... | 1995-04-27 | 2007-05-23 | [
"cond-mat"
] | Hernan A. Makse, Shlomo Havlin, and H. Eugene Stanley |
cond-mat/9504113 | Giant Conductance Oscillations In Mesoscopic Andreev Interferometers | We analyze the electrical conductance $G(\phi)$ of a two-dimensional, phase
coherent structure in contact with two superconductors, which is known to be an
oscillatory function of the phase difference $\phi$ between the
superconductors. It is predicted that for a metallic sample, the amplitude of
oscillation is enhance... | 1995-04-27 | 2009-10-28 | [
"cond-mat"
] | N.K. Allsopp, J. Sanchez Canizares, R. Raimondi and C.J. Lambert |
cond-mat/9504114 | A new integrable two parameter model of strongly correlated electrons in
one dimension | A new one-dimensional fermion model depending on two independent interaction
parameters is formulated and solved exactly by the Bethe ansatz method. The
Hamiltonian of the model contains the Hubbard interaction and correlated
hopping as well as pair hopping terms. The density-density and pair
correlations are calculate... | 1995-04-27 | 2009-10-28 | [
"cond-mat"
] | R. Z. Bariev, A. Kl\"umper, J. Zittartz |
cond-mat/9504112 | Mutual Exclusion Statistics in Exactly Solvable Models in One and Higher
Dimensions at Low Temperatures | We study statistical characterization of the many-body states in exactly
solvable models with internal degrees of freedom. The models under
consideration include the isotropic and anisotropic Heisenberg spin chain, the
Hubbard chain, and a model in higher dimensions which exhibits the Mott
metal-insulator transition. I... | 1995-04-27 | 2009-10-28 | [
"cond-mat"
] | Y. Hatsugai (Applied Physics, U-Tokyo), M. Kohmoto (ISSP,U-Tokyo),
T.Koma (Physics Gakushuin-U), and Y.-S. Wu (Physics, U-Utah) Comments( 22
pages, 1 postscript figure, to appear in Physicsl Review B) |
cond-mat/9504116 | Impact Ionization in ZnS | The impact ionization rate and its orientation dependence in k space is
calculated for ZnS. The numerical results indicate a strong correlation to the
band structure. The use of a q-dependent screening function for the Coulomb
interaction between conduction and valence electrons is found to be essential.
A simple fit f... | 1995-04-27 | 2009-10-28 | [
"cond-mat"
] | M.Reigrotzki, M.Stobbe, R.Redmer (Uni Rostock, Rostock, Germany),
W.Schattke (Uni Kiel, Kiel, Germany) |
cond-mat/9504108 | Single-particle Green's functions of the Calogero-Sutherland model at
couplings \lambda = 1/2, 1, and 2 | At coupling strengths lambda = 1/2, 1, or 2, the Calogero-Sutherland model
(CSM) is related to Brownian motion in a Wigner-Dyson random matrix ensemble
with orthogonal, unitary, or symplectic symmetry. Using this relation in
conjunction with superanalytic techniques developed in mesoscopic conductor
physics, we derive ... | 1995-04-26 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | M.R. Zirnbauer and F.D.M. Haldane |
cond-mat/9504103 | Thermodynamics of an integrable model for electrons with correlated
hopping | A new supersymmetric model for electrons with generalized hopping terms and
Hubbard interaction on a one-dimensional lattice is solved by means of the
Bethe Ansatz. We investigate the phase diagram of this model by studying the
ground state and excitations of the model as a function of the interaction
parameter, electr... | 1995-04-26 | 2009-10-28 | [
"cond-mat"
] | Gerald Bed\"urftig and Holger Frahm |
cond-mat/9504107 | The Single-Particle density of States, Bound States, Phase-Shift Flip,
and a Resonance in the Presence of an Aharonov-Bohm Potential | Both the nonrelativistic scattering and the spectrum in the presence of the
Aharonov-Bohm potential are analyzed. The single-particle density of states
(DOS) for different self-adjoint extensions is calculated. The DOS provides a
link between different physical quantities and is a natural starting point for
their calcu... | 1995-04-26 | 2009-10-28 | [
"cond-mat",
"hep-th",
"quant-ph"
] | Alexander Moroz |
cond-mat/9504104 | Crossover of magnetoconductance autocorrelation for a ballistic chaotic
quantum dot | The autocorrelation function $C_{\varphi,\eps}(\Delta\varphi,\,\Delta \eps)=$
$\langle \delta g(\varphi,\,\eps)\, \delta
g(\varphi+\Delta\varphi,\,\eps+\Delta \eps)\rangle$ ($\varphi$ and $\eps$ are
rescaled magnetic flux and energy) for the magnetoconductance of a ballistic
chaotic quantum dot is calculated in the fra... | 1995-04-26 | 2009-10-28 | [
"cond-mat"
] | Klaus Frahm |
cond-mat/9504109 | Peak Effect in Superconductors: Melting of Larkin Domains | Motivated by the recent observations of the peak effect in high-$T_c$ YBCO
superconductors, we reexamine the origin of this unusual phenomenon. We show
that the mechanism based on the $k$-dependence (nonlocality) of the
vortex-lattice tilt modulus $C_{44}({\bf k})$ cannot account for the essential
feature of the peak e... | 1995-04-26 | 2009-10-28 | [
"cond-mat",
"supr-con"
] | Xinsheng Ling, Chao Tang, S. Bhattacharya, and Paul M. Chaikin |
cond-mat/9504110 | Chaos in Andreev Billiards | A new type of classical billiard - the Andreev billiard - is investigated
using the tangent map technique. Andreev billiards consist of a normal region
surrounded by a superconducting region. In contrast with previously studied
billiards, Andreev billiards are integrable in zero magnetic field, {\it
regardless of their... | 1995-04-26 | 2009-10-28 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | Ioan Kosztin, Dmitrii L. Maslov and Paul M. Goldbart |
cond-mat/9504100 | Eigenstates of the Vorticity Operator: The Creation and Annihilation of
Vortex States in Two Dimensions | A quantum mechanical description of vortices in two dimensional superfluid
$^4$He flims is presented. Single vortex creation and annihilation operators
are defined and wavefunctions for these states are explicitly constructed. A
hamitonian for these states is then proposed. | 1995-04-26 | 2007-05-23 | [
"cond-mat",
"quant-ph"
] | A. D. Speliotopoulos |
cond-mat/9504105 | Self-consistent current-voltage characteristics of superconducting
nano-structures | By solving the Bogoliubov - de Gennes equation self-consistently in the
presence of a non-equilibrium quasi-particle distribution, we compute the
current-voltage characteristic of a phase coherent superconducting island with
a tunnel barrier at one end. The results show significant structure, arising
from the competiti... | 1995-04-26 | 2009-10-28 | [
"cond-mat"
] | A Martin and CJ Lambert |
cond-mat/9504106 | High Resolution 13C NMR study of oxygen intercalation in C60 | Solid state high resolution $^{13}C$ NMR has been used to investigate the
physical properties of pristine $C_{60}$ after intercalation with molecular
oxygen. By studying the dipolar and hyperfine interactions between Curie type
paramagnetic oxygen molecules and $^{13}C$ nuclei we have shown that neither
chemical bondin... | 1995-04-26 | 2009-10-28 | [
"cond-mat"
] | P. Bernier, I. Luk'yanchuk, Z. Belahmer, M. Ribet, L. Firlej |
cond-mat/9504102 | Conductivity of 2D lattice electrons in an incommensurate magnetic field | We consider conductivities of two-dimensional lattice electrons in a magnetic
field. We focus on systems where the flux per plaquette $\phi$ is irrational
(incommensurate flux). To realize the system with the incommensurate flux, we
consider a series of systems with commensurate fluxes which converge to the
irrational ... | 1995-04-26 | 2009-10-28 | [
"cond-mat"
] | Masahito Takahashi(ISSP, U-Tokyo), Yasuhiro Hatsugai (Applied Physics,
U-Tokyo), and Mahito Kohmoto(ISSP, U-Tokyo) |
cond-mat/9504101 | Mesoscopic phenomena in multiple light scattering | In my thesis I study mesoscopic corrections on diffuse transport. I first
describe the diffuse transport of light, using the scalar approximation and the
radiative transfer approach. Next, I focus on the correlations in transmission,
I discuss the so called C_1, C_2, C_3 decomposition and calculate each term in
detail.... | 1995-04-25 | 2007-05-23 | [
"cond-mat"
] | M.C.W. van Rossum |
cond-mat/9504098 | Magnetoconductance of ballistic chaotic quantum dots: A Brownian motion
approach for the $S$-matrix | Using the Fokker-Planck equation describing the evolution of the transmission
eigenvalues for Dyson's Brownian motion ensemble, we calculate the
magnetoconductance of a ballistic chaotic dot in in the crossover regime from
the orthogonal to the unitary symmetry. The correlation functions of the
transmission eigenvalues... | 1995-04-25 | 2009-10-28 | [
"cond-mat"
] | Klaus Frahm and Jean-Louis Pichard |
cond-mat/9504097 | Brownian motion ensembles and parametric correlations of the
transmission eigenvalues: Application to coupled quantum billiards and to
disordered wires | The parametric correlations of the transmission eigenvalues $T_i$ of a
$N$-channel quantum scatterer are calculated assuming two different Brownian
motion ensembles. The first one is the original ensemble introduced by Dyson
and assumes an isotropic diffusion for the $S$-matrix. The second Brownian
motion ensemble assu... | 1995-04-25 | 2009-10-28 | [
"cond-mat"
] | Klaus Frahm and Jean-Louis Pichard |
cond-mat/9504096 | On the spectrum of S=1/2 XXX Heisenberg chain with elliptic exchange | It is found that the Hamiltonian of S=1/2 isotropic Heisenberg chain with $N$
sites and elliptic non-nearest-neighbor exchange is diagonalized in each sector
of the Hilbert space with magnetization $N/2-M$, $1<M\leq[N/2]$, by means of
double quasiperiodic meromorphic solutions to the $M$-particle quantum
Calogero-Moser... | 1995-04-25 | 2009-10-28 | [
"cond-mat"
] | V.I. Inozemtsev |
cond-mat/9504099 | TUNNELING SPECTROSCOPY OF QUANTUM CHARGE FLUCTUATIONS IN THE COULOMB
BLOCKADE | We present a theory of Coulomb blockade oscillations in tunneling through a
pair of quantum dots connected by a tunable tunneling junction. The positions
and amplitudes of peaks in the linear conductance are directly related,
respectively, to the ground state energy and to the dynamics of charge
fluctuations. We study ... | 1995-04-25 | 2009-10-28 | [
"cond-mat"
] | K.A. Matveev (MIT), L.I. Glazman (U. Minn.), and H. U. Baranger (AT&T) |
cond-mat/9504090 | Boundary conditions for quantum lattice systems | For classical lattice systems, the Dobrushin-Lanford-Ruelle theory of
boundary conditions states that the restriction of a global equilibrium state
to a subsystem can be obtained as an integral over equilibrium states of the
subsystem alone. The Hamiltonians for the subsystem are obtained by fixing a
configuration for ... | 1995-04-24 | 2007-05-23 | [
"cond-mat",
"quant-ph"
] | M. Fannes and R.F. Werner |
cond-mat/9504092 | Linear response theory of Coulomb drag in coupled electron systems | We report a fully microscopic theory for transconductivity, or, equivalently,
momentum transfer rate, of Coulomb coupled electron systems. We use the Kubo
linear response formalism, and our main formal result expresses the
transconductivity in terms of two fluctuation diagrams, which are topologically
related, but not ... | 1995-04-24 | 2009-10-28 | [
"cond-mat"
] | Karsten Flensberg (MIC, DTU), Ben Yu-Kuang Hu (MIC, DTU), Antti-Pekka
Jauho (MIC, DTU), and Jari M. Kinaret (Nordita) |
cond-mat/9504091 | ON THE LOW-TEMPERATURE ORDERING OF THE 3D ATIFERROMAGNETIC THREE-STATE
POTTS MODEL | The antiferromagnetic three-state Potts model on the simple-cubic lattice is
studied using Monte Carlo simulations. The ordering in a medium temperature
range below the critical point is investigated in detail. Two different regimes
have been observed: The so-called broken sublattice-symmetry phase dominates at
suffici... | 1995-04-24 | 2009-10-28 | [
"cond-mat"
] | M. Kolesik and M. Suzuki |
cond-mat/9504093 | An Upsilon Point in a Spin Model | We present analytic evidence for the occurrence of an upsilon point, an
infinite checkerboard structure of modulated phases, in the ground state of a
spin model. The structure of the upsilon point is studied by calculating
interface--interface interactions using an expansion in inverse spin
anisotropy. | 1995-04-24 | 2009-10-28 | [
"cond-mat"
] | C. Micheletti, F. Seno and J. M. Yeomans |
cond-mat/9504094 | Topological Mechanism of Superconductivity | We outline the basic ideas of the topological mechanisms of
superconductivity. A gauged model of correlated electronic system where a
topological fluid is formed as a result of a strong interaction is discussed. | 1995-04-24 | 2009-10-28 | [
"cond-mat"
] | P. B. Wiegmann |
cond-mat/9504095 | Theory of Neutron Scattering in the Normal and Superconducting State of
YBCO | We analyze neutron experiments on $\ybco$ at various stoichiometries in the
superconducting state, within the context of a bi-layer theory which yields
good agreement with the normal state Cu-NMR and neutron data as a function of
\omega, q and T. A d-wave superconducting state exhibits peaks at q = ( \pi ,
\pi , \pi ) ... | 1995-04-24 | 2009-10-28 | [
"cond-mat"
] | D.Z. Liu, K. Levin, and Y. Zha |
cond-mat/9504084 | Simple description of the anisotropic two-channel Kondo problem | We adapt strong-coupling methods first used in the one-channel Kondo model to
develop a simple description of the spin-$1\over 2$ two-channel Kondo model
with channel anisotropy. Our method exploits spin-charge decoupling to develop
a compactified Hamiltonian that describes the spin excitations. The structure
of the fi... | 1995-04-21 | 2009-10-28 | [
"cond-mat"
] | P. Coleman and A. J. Schofield |
cond-mat/9504089 | Spatial Correlation in Quantum Chaotic Systems with Time-reversal
Symmetry: Theory and Experiment | The correlation between the values of wavefunctions at two different spatial
points is examined for chaotic systems with time-reversal symmetry. Employing a
supermatrix method, we find that there exist long-range Friedel oscillations of
the wave function density for a given eigenstate, although the background
wavefunct... | 1995-04-21 | 2009-10-28 | [
"cond-mat"
] | V. N. Prigodin, N. Taniguchi, A. Kudrolli, V. Kidambi, and S. Sridhar |
cond-mat/9504085 | EQUIVALENCES BETWEEN STOCHASTIC SYSTEMS | Time-dependent correlation functions of (unstable) particles undergoing
biased or unbiased diffusion, coagulation and annihilation are calculated. This
is achieved by similarity transformations between different stochastic models
and between stochastic and soluble {\em non-stochastic} models. The results
agree with exp... | 1995-04-21 | 2009-10-28 | [
"cond-mat",
"chem-ph",
"hep-lat",
"hep-th",
"nlin.SI",
"solv-int"
] | Malte Henkel, Enzo Orlandini and Gunter M. Sch\"utz |
cond-mat/9504087 | Dynamical correlations in a Hubbard chain with resonating-valence-bond
ground state | Dynamical correlation functions for temperature T=0 are calculated for a
Hubbard chain with infinite on-site repulsion. This chain contains three sites
per unit cell and has a known resonating-valence-bond ground state for a
filling of 2 particles per unit cell. A finite system of 24 sites is studied
numerically. The r... | 1995-04-21 | 2009-10-28 | [
"cond-mat"
] | Andreas Giesekus |
cond-mat/9504086 | Optimal self-avoiding paths in dilute random medium | By a new type of finite size scaling analysis on the square lattice, and by
renormalization group calculations on hierarchical lattices we investigate the
effects of dilution on optimal undirected self-avoiding paths in a random
environment. The behaviour of the optimal paths remains the same as for
directed paths in u... | 1995-04-21 | 2016-08-31 | [
"cond-mat"
] | F.Seno, A.L. Stella and C. Vanderzande |
cond-mat/9504088 | Phase space diffusion and low temperature aging | We study the dynamical evolution of a system with a phase space consisting of
configurations with random energies. The dynamics we use is of Glauber type. It
allows for some dynamical evolution ang aging even at very low temperatures,
through the search of configurations with lower energies. | 1995-04-21 | 2009-10-28 | [
"cond-mat"
] | A. Barrat and M. M\'ezard |
cond-mat/9504077 | $J_1-J_2$ quantum Heisenberg antiferromagnet on the triangular lattice:
a group symmetry analysis of order by disorder | On the triangular lattice, for $J_2/J_1$ between $1/8$ and $1$, the classical
Heisenberg model with first and second neighbor interactions presents
four-sublattice ordered ground-states. Spin-wave calculations of Chubukov and
Jolicoeur\cite{cj92} and Korshunov\cite{k93} suggest that quantum fluctuations
select amongst ... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | P. Lecheminant, B. Bernu, C. Lhuillier, and L. Pierre |
cond-mat/9504079 | Phase Ordering Kinetics with External Fields and Biased Initial
Conditions | The late-time phase-ordering kinetics of the O(n) model for a non-conserved
order parameter are considered for the case where the O(n) symmetry is broken
by the initial conditions or by an external field. An approximate theoretical
approach, based on a `gaussian closure' scheme, is developed, and results are
obtained f... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | J. A. N. Filipe, A. J. Bray and S. Puri |
cond-mat/9504080 | Stability of insulating phase in the chiral Kondo lattice model | In this work, the stability of the insulating phase of the 1D chiral Kondo
lattice model is studied at half-filling, within the framework of
self-consistent variational theory. It is found that arbitrarily small
interaction would drive the system from a conducting phase to an insulating
phase, in spite of the chirality... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | D. F. Wang and C. Gruber |
cond-mat/9504082 | Temporal Order in Dirty Driven Periodic Media | We consider the non--equilibrium steady states of a driven charge density
wave in the presence of impurities and noise. In three dimensions at strong
drive, a true dynamical phase transition into a temporally periodic state with
quasi--long--range translational order is predicted. In two dimensions,
impurity induced ph... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | Leon Balents and Matthew P. A. Fisher (ITP, Santa Barbara) |
cond-mat/9504078 | Theoretical Model for the Semimetal Yb_4As_3 | We present a model which can explain semiquantitatively a number of the
unusual properties of \mbox{Yb$_4$As$_3$}. The structural phase transition at
$T_{\text{c}}\simeq300\,\mbox{K}$ is described by a band Jahn-Teller effect of
correlated electrons and is interpreted as a charge ordering of the Yb ions.
The low carrie... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | Peter Fulde, Burkhard Schmidt, and Peter Thalmeier |
cond-mat/9504081 | Glassiness in a model without energy barriers | We propose a microscopic model without energy barriers in order to explain
some generic features observed in structural glasses. The statics can be
exactly solved while the dynamics has been clarified using Monte Carlo
calculations. Although the model has no thermodynamic transition it captures
some of the essential fe... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | Felix Ritort |
cond-mat/9504083 | Thermal Diffusion of a Two Layer System | In this paper thermal conductivity and thermal diffusivity of a two layer
system is examined from the theoretical point of view. We use the one
dimensional heat diffusion equation with the appropriate solution in each layer
and boundary conditions at the interfaces to calculate the heat transport in
this bounded system... | 1995-04-20 | 2009-10-28 | [
"cond-mat"
] | G. Gonzalez de la Cruz and Yu. G. Gurevich (Centro de Investigacion y
de Estudios Avanzados del Instituto Politecnico Nacional) |
cond-mat/9504073 | Fluctuating Membranes with Tilt Order | Thermal fluctuations are important for amphiphilic bilayer membranes since
typical bending stiffnesses can be a few $k_B T$. The rod-like constituent
molecules are generically tilted with respect to the local normal for packing
reasons. We study the effects of fluctuations on membranes with nematic order,
a simplified ... | 1995-04-19 | 2009-10-28 | [
"cond-mat",
"hep-th"
] | Thomas Powers and Philip Nelson |
cond-mat/9504072 | Impurity Scattering and Gap Structure in the Anisotropic Superconductor
UPt$_3$ | The thermal conductivity, $\kappa$, of the heavy fermion superconductor
UPt$_3$ was measured down to T$_c$/10. The absence of a linear term in the
temperature dependence as T$\rightarrow$0 strongly suggests there are no zero
energy quasiparticle excitations, in contradiction with the gapless behaviour
often inferred fr... | 1995-04-19 | 2008-02-03 | [
"cond-mat"
] | Benoit Lussier, Brett Ellman, and Louis Taillefer |
cond-mat/9504076 | "Chain scenario" for Josephson tunneling with pi-shift in YBa2Cu3O7 | We point out that all current Josephson-junction experiments probing directly
the symmetry of the superconducting state in YBa2Cu3O7, can be interpreted in
terms of the bilayer antiferromagnetic spin fluctuation model, which renders
the superconducting state with the order parameters of extended $s$ symmetry,
but with ... | 1995-04-19 | 2009-10-28 | [
"cond-mat",
"supr-con"
] | I.I.Mazin, A.A. Golubov, and A.D. Zaikin |
cond-mat/9504075 | Scattering of second sound waves by quantum vorticity | A new method of detection and measurement of quantum vorticity by scattering
second sound off quantized vortices in superfluid Helium is suggested.
Theoretical calculations of the relative amplitude of the scattered second
sound waves from a single quantum vortex, a vortex ring, and bulk vorticity are
presented. The re... | 1995-04-19 | 2009-10-28 | [
"cond-mat"
] | Fernando Lund (Universidad de Chile) and Victor Steinberg (Weizmann
Institute) |
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