id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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cond-mat/9501109 | de Haas-van Alphen Oscillations in a Superconducting State at High
Magnetic Fields | Low-temperature quantum oscillations of the dHvA amplitude are shown to
persist far below the upper critical field of a strongly type-II
superconductor, due to the gapless nature of the BCS quasiparticle spectrum in
high fields. The dHvA amplitude in the superconducting state is smaller than
its normal state countpart ... | 1995-01-23 | 2016-08-31 | [
"cond-mat"
] | S. Dukan and Z. Tesanovic (Johns Hopkins University) |
cond-mat/9501110 | Linear Response of Thin Superconductors in Perpendicular Magnetic
Fields: An Asymptotic Analysis | The linear response of a thin superconducting strip subjected to an applied
perpendicular time-dependent magnetic field is treated analytically using the
method of matched asymptotic expansions. The calculation of the induced current
density is divided into two parts: an ``outer'' problem, in the middle of the
strip, w... | 1995-01-23 | 2016-08-31 | [
"cond-mat",
"supr-con"
] | Alan T. Dorsey |
cond-mat/9501104 | CURRENT MAGNIFICATION AND CIRCULATING CURRENTS IN MESOSCOPIC RINGS | We show that several novel effects related to persistent currents can arise
in open systems, which have no analogue in closed or isolated systems. We have
considered a system of a metallic ring coupled to two electron reservoirs. We
show that in the presence of a transport current, persistent currents can flow
in a rin... | 1995-01-22 | 2009-10-28 | [
"cond-mat"
] | A. M. Jayannavar, P. Singha Deo and T. P. Pareek |
cond-mat/9501101 | Topology and Nematic Ordering I: A Gauge Theory | We consider the weakly first order phase transition between the isotropic and
ordered phases of nematics in terms of the behavior of topological line
defects. Analytical and Monte Carlo results are presented for a new
coarse-grained lattice theory of nematics which incorporates nematic inversion
symmetry as a local gau... | 1995-01-22 | 2009-10-28 | [
"cond-mat"
] | Paul E. Lammert, Daniel S. Rokhsar and John Toner |
cond-mat/9501102 | Testing Mode-Coupling Theory for a Supercooled Binary Lennard-Jones
Mixture I: The van Hove Correlation Function | We report the results of a large scale computer simulation of a binary
supercooled Lennard-Jones liquid. We find that at low temperatures the curves
for the mean squared displacement of a tagged particle for different
temperatures fall onto a master curve when they are plotted versus rescaled
time $tD(T)$, where $D(T)$... | 1995-01-22 | 2016-08-31 | [
"cond-mat"
] | Walter Kob (Institut f\"ur Physik, Johannes Gutenberg-Universit\"at,
Mainz) and Hans C. Andersen (Department of Chemistry, Stanford University) |
cond-mat/9501103 | Persistent Currents in the Presence of a Transport Current | We have considered a system of a metallic ring coupled to two electron
reservoirs. We show that in the presence of a transport current, the persistent
current can flow in a ring, even in the absence of magnetic field. This is
purely a quantum effect and is related to the current magnification in the
loop. These persist... | 1995-01-22 | 2009-10-28 | [
"cond-mat"
] | A. M. Jayannavar and P. Singha Deo |
cond-mat/9501100 | Topology and Nematic Ordering II: Observable Critical Behavior | This paper is the second in a pair treating a new lattice model for nematic
media. In addition to the familiar isotropic (I) and nematically ordered (N)
phases, the phase diagram established in the previous paper (Paper I) contains
a new, topologically ordered phase (T) occuring at large suppression of
topological defe... | 1995-01-22 | 2009-10-28 | [
"cond-mat"
] | John Toner, Paul E. Lammert and Daniel S. Rokhsar |
cond-mat/9501099 | Parity Effects and Higher Order Tunneling in Superconducting SET
Transistors | Single electron tunneling into small superconducting islands is sensitive to
the gap energy of the excitations created in the process and, hence, depends on
the parity of the electron number in the island. We study these effects by
analyzing the kinetics of the system. Since the interplay of Coulomb blockade
and parity... | 1995-01-21 | 2016-08-31 | [
"cond-mat"
] | J. Siewert, Gerd Sch\"on, and Andrei D. Zaikin |
cond-mat/9501095 | Localization Properties in One Dimensional Disordered Supersymmetric
Quantum Mechanics | A model of localization based on the Witten Hamiltonian of supersymmetric
quantum mechanics is considered. The case where the superpotential $\phi(x)$ is
a random telegraph process is solved exactly. Both the localization length and
the density of states are obtained analytically. A detailed study of the low
energy beh... | 1995-01-20 | 2015-06-25 | [
"cond-mat"
] | A. Comtet, J. Desbois and C. Monthus |
cond-mat/9501093 | SPIN AND CHARGE MODES OF THE t-J LADDER | The spin and charge excitations of the t--J ladder are studied by exact
diagonalization techniques for several electron densities. The various modes
are classified according to their spin (singlet or triplet excitations) and
their parity under a reflection with respect to the symmetry axis along the
chains and a finite... | 1995-01-20 | 2016-08-31 | [
"cond-mat"
] | D. Poilblanc, D.J. Scalapino and W. Hanke |
cond-mat/9501092 | (001)-Surface-induced bulk and surface states in wide band gap
sincblende II-VI semiconductors | In a previous paper [\prb {\bf 50}, 1980 (1994)] we gave account of the
nondispersive band first found experimentally at --4.4 eV for CdTe(001) by
Niles and H\"ochst. We have characterized this band as a surface--induced bulk
state. In a second paper we showed that a similar state does exist in II--VI
and III--V zincbl... | 1995-01-20 | 2007-05-23 | [
"cond-mat"
] | D. Olgu\'in and R. Baquero |
cond-mat/9501094 | On the Renormalization of the Kardar-Parisi-Zhang equation | The Kardar-Parisi-Zhang (KPZ) equation of nonlinear stochastic growth in d
dimensions is studied using the mapping onto a system of directed polymers in a
quenched random medium. The polymer problem is renormalized exactly in a
minimally subtracted perturbation expansion about d = 2. For the KPZ roughening
transition i... | 1995-01-20 | 2016-08-31 | [
"cond-mat"
] | Michael Lassig |
cond-mat/9501097 | THE STAGGERED CHARGE-ORDER PHASE OF THE EXTENDED HUBBARD MODEL | We study the phase diagram of the extended Hubbard model in the atomic limit.
At zero temperature, the phase diagram decomposes into six regions: three with
homogeneous phases (characterized by particle densities $\rho=0$, 1, and 2 and
staggered charge density $\Delta=0$) and three with staggered phases
(characterized ... | 1995-01-20 | 2009-10-28 | [
"cond-mat"
] | C. Borgs (IAS Princeton, FU-Berlin) J. J\c{e}drzejewski (Wroclaw
University) R.Koteck\'y (CTS Prague, CNRS Marseille) |
cond-mat/9501098 | Bounds on the mass gap of the ferromagnetic XXZ chain | We prove rigorous lower and upper bounds for the mass gap of the
ferromagnetic spin 1/2 XXZ chain. The two bounds coincide asymptotically in the
Ising limit $\Delta\to\infty$. Near the isotropic point, $\Delta=1$, the
estimates are good enough to determine the critical behaviour of the mass gap
unambiguously. The deriv... | 1995-01-20 | 2008-02-03 | [
"cond-mat",
"funct-an",
"hep-th",
"math.FA"
] | Bruno Nachtergaele (Princeton University) |
cond-mat/9501088 | Gapless Time-Reversal Symmetry Breaking Superconductivity | We consider a layered superconductor with a complex order parameter whose
phase switches sign from one layer to the next. This system is shown to exhibit
gapless superconductivity for sufficiently large interlayer pairing or
interlayer hopping. In addition, this description is consistent with
experiments finding signal... | 1995-01-20 | 2016-08-31 | [
"cond-mat",
"supr-con"
] | A. M. Tikofsky and D. B. Bailey |
cond-mat/9501091 | MAGNETIC PROPERTIES OF UNCONVENTIONAL SUPERCONDUCTORS | The article reviews recent developments on magnetic properties of
superconductors with anisotropic Cooper pairing. In particular, we show how the
concept of broken symmetries is applied to the investigation of the mixed state
in superconductors with a multicomponent order parameter. Starting from the
phenomenological d... | 1995-01-20 | 2016-08-31 | [
"cond-mat"
] | I. A. Luk'yanchuk and M. E. Zhitomirsky |
cond-mat/9501096 | Intentionally disordered superlattices with high dc conductance | We study disordered quantum-well-based semiconductor superlattices where the
disorder is intentional and short-range correlated. Such systems consist of
quantum-wells of two different thicknesses randomly distributed along the
growth direction, with the additional constraint that wells of one kind always
appears in pai... | 1995-01-20 | 2016-08-31 | [
"cond-mat"
] | E. Diez, A. Sanchez, F. Dominguez-Adame |
cond-mat/9501087 | Elastic theory of flux lattices in presence of weak disorder | The effect of disorder on flux lattices at equilibrium is studied
quantitatively in the absence of free dislocations using both the Gaussian
variational method and the renormalization group. Our results for the mean
square relative displacements clarify the nature of the crossovers with
distance. We find three regimes:... | 1995-01-19 | 2016-08-31 | [
"cond-mat"
] | T. Giamarchi and P. Le Doussal |
cond-mat/9501089 | Theory of Phase Ordering Kinetics | The theory of phase ordering dynamics -- the growth of order through domain
coarsening when a system is quenched from the homogeneous phase into a
broken-symmetry phase -- is reviewed, with the emphasis on recent developments.
Interest will focus on the scaling regime that develops at long times after the
quench. How c... | 1995-01-19 | 2015-06-25 | [
"cond-mat"
] | A. J. Bray |
cond-mat/9501085 | Spectral function of the 1D Hubbard model in the $U\to +\infty $ limit | We show that the one-particle spectral functions of the one-dimensional
Hubbard model diverge at the Fermi energy like $|\omega-\varepsilon_F|^{-3/8}$
in the $U\to +\infty $ limit. The Luttinger liquid behaviour
$|\omega-\varepsilon_F|^\alpha$, where $\alpha \to 1/8$ as $U\to +\infty $,
should be limited to $|\omega-\v... | 1995-01-19 | 2009-03-02 | [
"cond-mat"
] | Karlo Penc, Fr\'ed\'eric Mila and Hiroyuki Shiba |
cond-mat/9501090 | Theory of the half-filled Landau level | A recent theory of a compressible Fermi-liquid like state at Landau level
filling factors $\nu=1/q$ or $1-1/q$, $q$ even, is reviewed, with emphasis on
the basic physical concepts. | 1995-01-19 | 2016-08-31 | [
"cond-mat"
] | N. Read |
cond-mat/9501084 | Electron-electron interactions, coupled plasmon-phonon modes, and
mobility in n-type GaAs | This paper investigates the mobility of electrons scattering from the coupled
system of electrons and longitudinal optical (LO) phonons in n-type GaAs. The
Boltzmann equation is solved exactly for low electric fields by an iterative
method, including electron-electron and electron-LO phonon scattering
dynamically scree... | 1995-01-19 | 2016-08-31 | [
"cond-mat"
] | B.A. Sanborn |
cond-mat/9501083 | Nonequilibrium total dielectric function approach to the electron
Boltzmann equation for inelastic scattering in doped polar semiconductors | This paper describes a simple and general method for deriving the inelastic
collision term in the electron Boltzmann equation for scattering from a coupled
electron-phonon system, and applies the method to the case of doped polar
semiconductors. In the Born approximation, the inelastic differential
scattering rate $W^{... | 1995-01-19 | 2016-08-31 | [
"cond-mat"
] | B.A. Sanborn |
cond-mat/9501086 | Resistivity as a function of temperature for models with hot spots on
the Fermi surface. | We calculate the resistivity $\rho$ as a function of temperature $T$ for two
models currently discussed in connection with high temperature
superconductivity: nearly antiferromagnetic Fermi liquids and models with van
Hove singularities on the Fermi surface. The resistivity is calculated
semiclassicaly by making use of... | 1995-01-19 | 2016-08-31 | [
"cond-mat"
] | R. Hlubina and T. M. Rice |
cond-mat/9501074 | SURFACE INDUCED FINITE-SIZE EFFECTS FOR FIRST ORDER PHASE TRANSITIONS | We consider classical lattice models describing first-order phase
transitions, and study the finite-size scaling of the magnetization and
susceptibility. In order to model the effects of an actual surface in systems
like small magnetic clusters, we consider models with free boundary conditions.
For a field driven trans... | 1995-01-18 | 2009-10-28 | [
"cond-mat"
] | C. Borgs (IAS Princeton, FU-Berlin) R. Kotecky (CNRS Marseille, CTS
Prague) |
cond-mat/9501082 | Weight Space Structure and Internal Representations: a Direct Approach
to Learning and Generalization in Multilayer Neural Network | We analytically derive the geometrical structure of the weight space in
multilayer neural networks (MLN), in terms of the volumes of couplings
associated to the internal representations of the training set. Focusing on the
parity and committee machines, we deduce their learning and generalization
capabilities both rein... | 1995-01-18 | 2016-08-31 | [
"cond-mat"
] | R.Monasson and R.Zecchina |
cond-mat/9501080 | Characterization of fractional-quantum-Hall-effect quasiparticles | Composite fermions in a partially filled quasi-Landau level may be viewed as
quasielectrons of the underlying fractional quantum Hall state, suggesting that
a quasielectron is simply a dressed electron, as often is true in other
interacting electron systems, and as a result has the same intrinsic charge and
exchange st... | 1995-01-18 | 2016-08-31 | [
"cond-mat"
] | A.S. Goldhaber and J.K. Jain |
cond-mat/9501077 | Analytic Treatment of Mott-Hubbard Transition in the Half-Filled Hubbard
Model | The Mott-Hubbard transition in the half-filled Hubbard model is studied
analytically for the paramagnetic ground state and the classical N\'{e}el
state. The single-particle density of states is obtained by calculating the
Green's function represented by the infinite continued fraction. The
paramagnetic solution shows t... | 1995-01-18 | 2013-07-19 | [
"cond-mat"
] | Jongbae Hong and Hae-Young Kee (Department of Physics Education, Seoul
National University) |
cond-mat/9501081 | The functional-analytic versus the functional-integral approach to
quantum Hamiltonians: The one-dimensional hydrogen atom. | The capabilities of the functional-analytic and of the functional-integral
approach for the construction of the Hamiltonian as a self-adjoint operator on
Hilbert space are compared in the context of non-relativistic quantum
mechanics. Differences are worked out by taking the one-dimensional hydrogen
atom as an example,... | 1995-01-18 | 2016-08-31 | [
"cond-mat",
"funct-an",
"math.FA",
"quant-ph"
] | W. Fischer, H. Leschke, P. Mueller |
cond-mat/9501068 | Ginzburg-Landau theory of phase transitions in quasi-one-dimensional
systems | A wide range of quasi-one-dimensional materials, consisting of weakly coupled
chains, undergo three-dimensional phase transitions that can be described by a
complex order parameter. A Ginzburg-Landau theory is derived for such a
transition. It is shown that intrachain fluctuations in the order parameter
play a crucial ... | 1995-01-18 | 2016-08-31 | [
"cond-mat"
] | Ross H. McKenzie |
cond-mat/9501078 | Unbiased estimators in Quantum Monte Carlo methods: application to
liquid $^4$He | A Monte Carlo algorithm for computing quantum mechanical expectation values
of coordinate operators in many body problems is presented. The algorithm, that
relies on the forward walking method, fits naturally in a Green's Function
Monte Carlo calculation, i.e., it does not require side walks or a bilinear
sampling meth... | 1995-01-18 | 2009-10-28 | [
"cond-mat"
] | J. Casulleras and J. Boronat |
cond-mat/9501079 | Gaussian, exponential, and power-law decay of time-dependent correlation
functions in quantum spin chains | Dynamic spin correlation functions $<S_i^x (t)S_j^x>$ for the 1D $S=1/2$ $XX$
model $H = -J\Sigma_i \{S_i^x S_{i+1}^x + S_i^y S_{i+1}^y \}$ are calculated
exactly for finite open chains with up to N=10000 spins. Over a certain time
range the results are free of finite-size effects and thus represent
correlation functio... | 1995-01-18 | 2009-10-28 | [
"cond-mat"
] | Joachim Stolze, Angela N\"oppert, Gerhard M\"uller |
cond-mat/9501069 | Random field Ising model: dimensional reduction or spin-glass phase? | The stability of the random field Ising model (RFIM) against spin glass (SG)
fluctuations, as investigated by M\'ezard and Young, is naturally expressed via
Legendre transforms, stability being then associated with the non-negativeness
of eigenvalues of the inverse of a generalized SG susceptibility matrix. It is
found... | 1995-01-17 | 2009-10-28 | [
"cond-mat"
] | C. De Dominicis, H. Orland, T. Temesvari |
cond-mat/9501070 | Distribution of Eigenvalues of Ensembles of Asymmetrically Diluted
Hopfield Matrices | Using Grassmann variables and an analogy with two dimensional electrostatics,
we obtain the average eigenvalue distribution $\rho(\omega)$ of ensembles of $N
\times N$ asymmetrically diluted Hopfield matrices in the limit $N \rightarrow
\infty$. We found that in the limit of strong dilution the distribution is
uniform ... | 1995-01-17 | 2016-08-31 | [
"cond-mat"
] | D. A. Stariolo (Centro Brasileiro de Pesquisas Fisicas, Brazil), E. M.
F. Curado (Universidade de Brasilia, Brazil) and F. A. Tamarit (FaMAF,
Universidad Nacional de Cordoba, Argentina) |
cond-mat/9501073 | LEVEL CORRELATIONS DRIVEN BY WEAK LOCALIZATION IN 2-D SYSTEMS | We consider the two-level correlation function in two-dimensional disordered
systems. In the non-ergodic diffusive regime, at energy $\epsilon>E_{c}$
($E_{c}$ is the Thouless energy), it is shown to be completely determined by
the weak localization effects, thus being extremely sensitive to time-reversal
and spin symme... | 1995-01-17 | 2016-08-31 | [
"cond-mat"
] | Vladimir E. Kravtsov and Igor V. Lerner |
cond-mat/9501072 | SPECTRAL CORRELATIONS IN DISORDERED ELECTRONIC SYSTEMS: CROSSOVER FROM
METAL TO INSULATOR REGIME | We use the semiclassical approach combined with the scaling results for the
diffusion coefficient to consider the two-level correlation function
$R(\varepsilon)$ for a disordered electron system in the crossover region,
characterized by the appearance of a macroscopic correlation or localization
length, $\xi$, that div... | 1995-01-17 | 2016-08-31 | [
"cond-mat"
] | Arkady G. Aronov, Vladimir E. Kravtsov and Igor V. Lerner |
cond-mat/9501076 | Amphiphilic Membranes | Contents:
1. Introduction
2. Amphiphilic molecules and the phases they form
3. Isolated membranes: the Helfrich hamiltonian
4. Vesicle shapes
5. Shape fluctuations in vesicles
6. Interacting fluid membranes
7. Conclusions
A. Differential equations for vesicle shapes
B. The Faddeev-Popov determinant
... | 1995-01-17 | 2016-08-31 | [
"cond-mat",
"q-bio.SC"
] | Luca Peliti |
cond-mat/9501075 | Shear Alignment and Instability of Smectic Phases | We consider the shear flow of well-aligned one-component smectic phases, such
as thermotropic smectics and lamellar diblock copolymers, below the critical
region. We show that, as a result of thermal fluctuations of the layers,
parallel ($c$) alignment is generically unstable and perpendicular ($a$)
alignment is stable... | 1995-01-17 | 2016-08-31 | [
"cond-mat"
] | Mark Goulian and Scott T. Milner |
cond-mat/9501071 | Scaling Violations with Textures in Two-Dimensional Phase-Ordering | Scaling violations are found in the phase-ordering two-dimensional Heisenberg
[$O(3)$] model, which has non-singular topological textures, under dissipative
non-conserved dynamics. Three separate length-scales are found: $L_T$
characterizes the scale of individual textures, $L_N$ characterizes the
separation between te... | 1995-01-17 | 2016-08-31 | [
"cond-mat"
] | A.D. Rutenberg (University of Manchester) |
cond-mat/9501065 | Spin-Waves in the Mid-Infrared Spectrum of Antiferromagnetic
YBa$_2$Cu$_3$O$_{6.0}$ | The mid-infrared spin-wave spectrum of antiferromagnetic
YBa$_2$Cu$_3$O$_{6.0}$\ was determined by infrared transmission and reflection
measurements ($\bbox{k} \!\! \parallel $c) at $T\!=\!10\!$~K.\@ Excitation of
single magnons of the optical branch was observed at
$E_{\text{op}}\!=\!178.0\!$~meV.\@ Two further peaks ... | 1995-01-16 | 2010-05-24 | [
"cond-mat"
] | M. Gr\"uninger, J. M\"unzel, A. Gaymann, A. Zibold and H. P. Geserich,
and T. Kopp |
cond-mat/9501067 | Theory of Fermion Liquids | We develop a general theory of fermion liquids in spatial dimensions greater
than one. The principal method, bosonization, is applied to the cases of short
and long range longitudinal interactions, and to transverse gauge interactions.
All the correlation functions of the system may be obtained with the use of a
genera... | 1995-01-16 | 2016-08-31 | [
"cond-mat",
"hep-th"
] | H.-J. Kwon, A. Houghton, and J. B. Marston |
cond-mat/9501064 | Low energy and dynamical properties of a single hole in the t-Jz model | We review in details a recently proposed technique to extract information
about dynamical correlation functions of many-body hamiltonians with a few
Lanczos iterations and without the limitation of finite size. We apply this
technique to understand the low energy properties and the dynamical spectral
weight of a simple... | 1995-01-16 | 2016-08-31 | [
"cond-mat"
] | Q.F. Zhong and S. Sorella |
cond-mat/9501062 | Conductance Fluctuations in a Disordered Double-Barrier Junction | We consider the effect of disorder on coherent tunneling through two barriers
in series, in the regime of overlapping transmission resonances. We present
analytical calculations (using random-matrix theory) and numerical simulations
(on a lattice) to show that strong mode-mixing in the inter-barrier region
induces meso... | 1995-01-16 | 2007-05-23 | [
"cond-mat"
] | J. A. Melsen and C. W. J. Beenakker (Instituut-Lorentz, Leiden, The
Netherlands) |
cond-mat/9501061 | Estimation of the order parameter exponent of critical cellular automata
using the enhanced coherent anomaly method. | The stochastic cellular automaton of Rule 18 defined by Wolfram [Rev. Mod.
Phys. 55 601 (1983)] has been investigated by the enhanced coherent anomaly
method. Reliable estimate was found for the $\beta$ critical exponent, based on
moderate sized ($n \le 7$) clusters. | 1995-01-16 | 2016-08-31 | [
"cond-mat"
] | Geza Odor |
cond-mat/9501066 | Negative dimensional operators in the disordered critical points of
Dirac fermions | Recently, in an attempt to study disordered criticality in Quantum Hall
systems and $d$-wave superconductivity, it was found that two dimensional
random Dirac fermion systems contain a line of critical points which is
connected to the pure system. We use bosonization and current algebra to study
properties of the criti... | 1995-01-16 | 2016-08-31 | [
"cond-mat",
"hep-th"
] | Claudio de C. Chamon, Christopher Mudry and Xiao-Gang Wen |
cond-mat/9501063 | Andreev tunneling into a one-dimensional Josephson junction array | In this letter we consider Andreev tunneling between a normal metal and a one
dimensional Josephson junction array with finite-range Coulomb energy. The
$I-V$ characteristics strongly deviate from the classical linear Andreev
current. We show that the non linear conductance possesses interesting scaling
behavior when t... | 1995-01-16 | 2009-10-28 | [
"cond-mat"
] | G. Falci, Rosario Fazio, A. Tagliacozzo and G. Giaquinta |
cond-mat/9501056 | Capillary Wave Scattering from a Surfactant Domain | The study of capillary wave scattering by a circular region with different
interfacial properties from the rest of an otherwise homogeneous interface is
motivated by experiments on wave attenuation at a monolayer covered air-water
interface where domains of one surface phase are dispersed in a second surface
phase. Her... | 1995-01-14 | 2016-08-31 | [
"cond-mat"
] | T. Chou, S. K. Lucas, and H. A. Stone |
cond-mat/9501058 | Semiconductor Analog of the Large Persistent Currents Observed in Small
Gold Rings | The remarkably large persistent currents that are observed in disordered
micron-scale gold rings at low temperatures have recently been explained in a
theory of non-interacting electrons scattered by crystal grain boundaries. The
present article examines the possibility that the basic physics underlying this
explanatio... | 1995-01-14 | 2016-08-31 | [
"cond-mat"
] | George Kirczenow |
cond-mat/9501057 | Temperature dependent gap anisotropy in Bi$_{2}$Sr$_{2}$CaCu$_{2}$
O$_{8+x}$ as evidence for a mixed-symmetry ground state | In a recent experiment, Ma et al. measured the temperature dependence of the
gap anisotropy of oxygen-annealed Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+x}$. Their
measurements were taken along the two directions $\Gamma - M$ and $\Gamma - X$.
They found that the gap along both directions is nonzero at low temperatures
and that ... | 1995-01-14 | 2016-08-31 | [
"cond-mat"
] | J. Betouras and R. Joynt (Department of Physics and Applied
Superconductivity Center, University of Wisconsin-Madison) |
cond-mat/9501055 | Wannier functions and Fractional Quantum Hall Effect | We introduce and study the Wannier functions for an electron moving in a
plane under the influence of a perpendicular uniform and constant magnetic
field. The relevance for the Fractional Quantum Hall Effect is discussed; in
particular it shown that an interesting Hartree-Fock state can be constructed
in terms of Wanni... | 1995-01-13 | 2015-06-25 | [
"cond-mat"
] | R. Ferrari |
cond-mat/9501050 | ``Space Time Aspects of Quasiparticle Propagation'' | Highly correlated states of electrons are thought to produce quasiparticles
with very unusual properties. Here we consider how these properties are
manifested in space-time propagation. Specifically, we discuss how spin-charge
separation is realized in a simple double-layer geometry, how mass
renormalization affects ti... | 1995-01-13 | 2016-08-31 | [
"cond-mat"
] | Richard Levien, Chetan Nayak and Frank Wilczek |
cond-mat/9501048 | Why Are Large Persistent Currents Observed in Small Gold Rings? | It is demonstrated using three-dimensional computer simulations that some
simple non-interacting electron models that include electron scattering by
grain boundaries, exhibit coexistence of large persistent currents and small
conductances, similar to that observed experimentally in isolated micron-scale
gold rings. Mod... | 1995-01-13 | 2016-08-31 | [
"cond-mat"
] | George Kirczenow |
cond-mat/9501052 | Quantum Hall States of High Symmetry | We identify some hidden symmetries of Chern-Simons theories, such as appear
in the effective theory for quantized Hall states. This allows us to determine
which filling fractions admit spin-singlet quantum Hall states. Our results
shed some light on states already observed at $\nu=2/3$, and transitions
between them. We... | 1995-01-13 | 2009-10-28 | [
"cond-mat"
] | Chetan Nayak and Frank Wilczek |
cond-mat/9501051 | Surface Polymer Network Model and Effective Membrane Curvature
Elasticity | A microscopic model of a surface polymer network - membrane system is
introduced, with contact polymer surface interactions that can be either
repulsive or attractive and sliplinks of functionality four randomly
distributed over the supporting membrane surface anchoring the polymers to it.
For the supporting surface pe... | 1995-01-13 | 2016-08-31 | [
"cond-mat"
] | R.Podgornik (Laboratory of Structural Biology, Division of Computer
Research and Technology, NIH and J.Stefan Institute, Ljubljana, Slovenia) |
cond-mat/9501053 | Enhancement of superconducting correlation due to interlayer tunneling. | Interlayer single particle tunneling between the $Cu-O$ layers suppress the
in-plane short range magnetic order (which is modeled as spin density wave
(SDW) insulator). Doping over the SDW state kills perfect nesting of the Fermi
surface (FS) in certain directions and hence SDW gap reduces to zero in those
directions o... | 1995-01-13 | 2016-08-31 | [
"cond-mat"
] | Haranath Ghosh and M. Sardar |
cond-mat/9501049 | Dynamics of a Polymer in the Presence of Permeable Membranes | We study the diffusion of a linear polymer in the presence of permeable
membranes without excluded volume interactions, using scaling theory and Monte
Carlo simulations. We find that the average time it takes for a chain with
polymerization index~$N$ to cross a single isolated membrane varies with~$N$
as~% $N^{5/2}$, g... | 1995-01-13 | 2016-08-31 | [
"cond-mat"
] | Hyoungsoo Yoon and J.M. Deutsch |
cond-mat/9501054 | Polymeric alkali fullerides are stable in air | Infrared transmission, electron spin resonance, and X-ray diffraction
measurements show unambiguously that RbC$_{60}$ and KC$_{60}$ are stable in
air, in contrast to Rb$_{6}$C$_{60}$ which decomposes rapidly upon exposure.
The specimens studied transform into pure C$_{60}$ and other byproducts when
heated above $100\dd... | 1995-01-13 | 2016-08-31 | [
"cond-mat"
] | Daniel Koller, Michael C. Martin, Peter W. Stephens, Laszlo Mihaly,
Sandor Pekker, Andras Janossy, Olivier Chauvet and Laszlo Forro |
cond-mat/9501046 | An introduction to the immune network | In this paper, after a telegraphic introduction to modern immunology, we
present a simple model for the idiotypic network among antibodies and we study
its relevance for the maintenance of immunological memory. We also consider the
problem of computing the memory capacity of such a model. | 1995-01-12 | 2008-02-03 | [
"cond-mat",
"hep-th",
"q-bio.CB"
] | Giorgio Parisi |
cond-mat/9501047 | Generalized Simulated Annealing | We propose a new stochastic algorithm (generalized simulated annealing) for
computationally finding the global minimum of a given (not necessarily convex)
energy/cost function defined in a continuous D-dimensional space. This
algorithm recovers, as particular cases, the so called classical ("Boltzmann
machine") and fas... | 1995-01-12 | 2015-06-25 | [
"cond-mat"
] | Constantino Tsallis (Dept of Phys and Ast, Michigan State Univ.) and
Daniel A. Stariolo (Centro Brasileiro de Pesquisas Fisicas) |
cond-mat/9501045 | On the Statistical Properties of the Large Time Zero Temperature
Dynamics of the SK Model | In this note we study the zero temperature dynamics of the Sherrington
Kirkppatric model and we investigate the statistical properties of the
configurations that are obtained in the large time limit. We find that the
replica symmetry is broken (in a weak sense). We also present some general
considerations on the synchr... | 1995-01-12 | 2007-05-23 | [
"cond-mat"
] | Giorgio Parisi |
cond-mat/9501039 | Dipolar-broadening of I=1/2-NMR spectra of solids | The equations of motion of dipolar-coupled spins of I=1/2 placed on a rigid
lattice are solved approximately in the high-temperature and high-field limit.
The NMR-spectra predicted by this theory are in close agreement with both the
theoretical spectral moments, up to the eighth in the case of a simple cubic
lattice, a... | 1995-01-11 | 2016-08-31 | [
"cond-mat"
] | Jens Jensen |
cond-mat/9501040 | Coherent States of Alternating Current, | We study counting statistics of electric current pumped by pulses of an
external field. The fluctuations depend on the pulse shape, and can be
minimized by choosing the pulse shape properly. For an optimal pulse shape, the
fluctuations are reduced to the {\it dc} level, i.e., they do not depend on the
duty cycle of the... | 1995-01-11 | 2016-08-31 | [
"cond-mat"
] | D. A. Ivanov, Hyunwoo Lee, and L. S. Levitov |
cond-mat/9501042 | Decimation Studies of Bloch Electrons in a Magnetic Field: Higher Order
Limit Cycles Underlying the Phase Diagram | A decimation method is applied to the tight binding model describing the two
dimensional electron gas with next nearest neighbor interaction in the presence
of an inverse golden mean magnetic flux. The critical phase with fractal
spectrum and wave function exists in a finite window in two-dimensional
parameter space. T... | 1995-01-11 | 2016-08-31 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | Jukka A. Ketoja, Indubala I. Satija and Juan Carlos Chaves |
cond-mat/9501044 | FLUCTUATION EFFECTS AND MULTISCALING OF THE REACTION-DIFFUSION FRONT FOR
A+B->0 | We consider the properties of the diffusion controlled reaction A+B->0 in the
steady state, where fixed currents of A and B particles are maintained at
opposite edges of the system. Using renormalisation group methods, we
explicitly calculate the asymptotic forms of the reaction front and particle
densities as expansio... | 1995-01-11 | 2009-10-28 | [
"cond-mat"
] | Martin Howard and John Cardy |
cond-mat/9501043 | Conformal, Subconformal and Spectral Universality in Incommensurate Spin
Chains | A renormalization scheme is developed to study an anisotropic quantum XY spin
chain in a quasiperiodic transverse field. The critical phase of the
quasi-particle excitations of the model with fractal wave functions exists in a
finite parameter interval and is sandwiched between the extended and localized
phases. The sc... | 1995-01-11 | 2016-08-31 | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | Jukka A. Ketoja and Indubala I. Satija |
cond-mat/9501041 | Capacitance of Gated GaAs/AlGaAs Heterostructures Subject to In-plane
Magnetic Fields | A detailed analysis of the capacitance of gated GaAs/AlGaAs heterostructures
is presented. The nonlinear dependence of the capacitance on the gate voltage
and in-plane magnetic field is discussed together with the capacitance quantum
steps connected with a population of higher 2D gas subbands. The results of
full self-... | 1995-01-11 | 2016-08-31 | [
"cond-mat"
] | T. Jungwirth, L. Smrcka |
cond-mat/9501060 | Magnetotunneling through a double barrier structure assisted by light | We have analyzed theoretically the effect of a laser on the tunneling current
through a double barrier in the presence of a parallel magnetic field. The mag
netotunneling current is modified by the light due to the photon emission and
absorption processes which assist the tunneling of electrons through the struc
ture. ... | 1995-01-11 | 2007-05-23 | [
"cond-mat"
] | Jesus Inarrea and Gloria Platero (Instituto de Ciencias de Materiales
CSIC and Departamento de Fisica de la Materia Condensada CIII Universidad
Autonoma de Madrid) |
cond-mat/9501035 | NUMERICAL INVESTIGATION OF CORRELATION FUNCTIONS FOR THE U_qSU(2)
INVARIANT SPIN-1/2 HEISENBERG CHAIN | We consider the U_qSU(2) invariant spin-1/2 XXZ quantum spin chain at roots
of unity q=exp(i*pi/(m+1)), corresponding to different minimal models of
conformal field theory. We conduct a numerical investigation of correlation
functions of U_qSU(2) scalar two-point operators in order to find which
operators in the minima... | 1995-01-10 | 2011-07-19 | [
"cond-mat"
] | Peter F Arndt and Thomas Heinzel |
cond-mat/9501036 | Magnetic Phases of the 2D Hubbard Model at Low Doping | We study the equilibrium spin configuration of the 2D Hubbard model at low
doping, when a long-range magnetic order is still present. We use the
spin-density-wave formalism and examine the two suggested candidates for a
ground state: the planar spiral $(\pi,Q)$ and $(Q,Q)$ states. In a mean-field
theory, each of these ... | 1995-01-10 | 2016-08-31 | [
"cond-mat"
] | Andrey V. Chubukov and Karen A. Musaelian |
cond-mat/9501038 | Statistical properties of random spin-1/2 XY chains | A numerical approach to the study of equilibrium statistical properties of
spin-1/2 XY chains is suggested. The approach is illustrated by the examining
of influence of disorder on transverse dynamical susceptibility of spin-1/2
Ising chain in random transverse field. | 1995-01-10 | 2008-02-03 | [
"cond-mat"
] | O.Derzhko, T.Krokhmalskii |
cond-mat/9501037 | On Schroedinger Equations with Concentrated Nonlinearities | Schr\"odinger equations with nonlinearities concentrated in some regions of
space are good models of various physical situations and have interesting
mathematical properties. We show that in the semiclassical limit it is possible
to separate the relevant degrees of freedom by noticing that in the regions
where the nonl... | 1995-01-10 | 2015-06-25 | [
"cond-mat",
"quant-ph"
] | Giovanni Jona-Lasinio, Carlo Presilla, and Johannes Sj\"ostrand |
cond-mat/9501031 | On the confinement of spinons in the $CP^{M-1}$ model | We use the $1/M$ expansion for the $CP^{M-1}$ model to study the
long-distance behaviour of the staggered spin susceptibility in the
commensurate, two-dimensional quantum antiferromagnet at finite temperature. At
$M=\infty$ this model possesses deconfined spin-1/2 bosonic spinons (Schwinger
bosons), and the susceptibil... | 1995-01-09 | 2016-08-31 | [
"cond-mat"
] | Andrey V. Chubukov and Oleg A. Starykh |
cond-mat/9501029 | Proximity-induced time-reversal symmetry breaking at Josephson junctions
between unconventional superconductors | We argue that a locally time-reversal symmetry breaking state can occur at
Josephson junctions between unconventional superconductors. Order parameters
induced by the proximity effect can combine with the bulk order parameter to
form such a state. This property is specifically due to the intrinsic phase
structure of th... | 1995-01-09 | 2016-08-31 | [
"cond-mat"
] | Kazuhiro Kuboki and Manfred Sigrist |
cond-mat/9501033 | Layered XY-Models, Anyon Superconductors, and Spin-Liquids | The partition function of the double-layer $XY$ model in the (dual) Villain
form is computed exactly in the limit of weak coupling between layers. Both
layers are found to be locked together through the
Berezinskii-Kosterlitz-Thouless transition, while they become decoupled well
inside the normal phase. These results a... | 1995-01-09 | 2016-08-31 | [
"cond-mat"
] | J.P. Rodriguez (LANL and CSULA) |
cond-mat/9501025 | GENERALIZED CIRCULAR ENSEMBLE OF SCATTERING MATRICES FOR A CHAOTIC
CAVITY WITH NON-IDEAL LEADS | We consider the problem of the statistics of the scattering matrix S of a
chaotic cavity (quantum dot), which is coupled to the outside world by
non-ideal leads containing N scattering channels. The Hamiltonian H of the
quantum dot is assumed to be an M x N hermitian matrix with probability
distribution P(H) ~ det[lamb... | 1995-01-09 | 2016-08-31 | [
"cond-mat"
] | P.W. Brouwer (Instituut-Lorentz, Leiden, The Netherlands) |
cond-mat/9501030 | Energy Gap Structure in Bilayer Oxide Superconductors | We consider a model for bilayer superconductors where an interlayer pairing
amplitude $\Delta_\perp$ co-exists with intralayer pairing $\Delta_\|$ of
$d_{x^2 - y^2}$ symmetry. This model is motivated by a recent photoemission
experiment reporting the splitting of the nodes of the energy gap. In addition
to offering a n... | 1995-01-09 | 2016-08-31 | [
"cond-mat"
] | Kazuhiro Kuboki and Patrick A. Lee |
cond-mat/9501028 | Resonant Tunneling and Charging Effects, a Path Integral Approach | Electron tunneling through small metallic islands with low capacitance is
studied. The large charging energy in these systems is responsible for
nonperturbative Coulomb blockade effects. We further consider the effect of
electron interactions in the electrodes. In junctions with high resistance
compared to the quantum ... | 1995-01-09 | 2016-08-31 | [
"cond-mat"
] | J\"urgen K\"onig, Herbert Schoeller, Gerd Sch\"on and Rosario Fazio |
cond-mat/9501026 | Where are the Hedgehogs in Nematics? | In experiments which take a liquid crystal rapidly from the isotropic to the
nematic phase, a dense tangle of defects is formed. In nematics, there are in
principle both line and point defects (``hedgehogs''), but no point defects are
observed until the defect network has coarsened appreciably. In this letter the
expec... | 1995-01-09 | 2016-08-31 | [
"cond-mat",
"hep-ph"
] | Mark Hindmarsh |
cond-mat/9501034 | Double Exchange Alone Does Not Explain the Resistivity of $La_{1-x} Sr_x
MnO_3$ | The $La_{1-x} Sr_x MnO_3$ system with $0.2 \lesssim x \lesssim 0.4$ has
traditionally been modelled with a ``double exchange'' Hamiltonian, in which it
is assumed that the only relevant physics is the tendency of carrier hopping to
line up neighboring spins. We present a solution of the double exchange model,
show it i... | 1995-01-09 | 2009-10-28 | [
"cond-mat"
] | A. J. Millis, P. B. Littlewood and B. I. Shraiman |
cond-mat/9501027 | Dynamic fluctuations in a Short-Range Spin Glass model | We study the dynamic fluctuations of the soft-spin version of the
Edwards-Anderson model in the critical region for $T\rightarrow T_{c}^{+}$.
First we solve the infinite-range limit of the model using the random matrix
method. We define the static and dynamic 2-point and 4-point correlation
functions at the order $O(1/... | 1995-01-09 | 2009-10-28 | [
"cond-mat"
] | Paola Ranieri |
cond-mat/9501032 | A remark on interacting anyons in magnetic field | In this remark, we note that the anyons, interacting with each other through
pairwise potential in external magnetic field, exhibit a simple quantum group
symmetry. | 1995-01-09 | 2016-08-31 | [
"cond-mat",
"hep-th"
] | D. F. Wang and C. Gruber |
cond-mat/9501024 | Theory of hopping magnetoresistance induced by Zeeman splitting | We present a study of hopping conductivity for a system of sites which can be
occupied by more than one electron. At a moderate on-site Coulomb repulsion,
the coexistence of sites with occupation numbers 0, 1, and 2 results in an
exponential dependence of the Mott conductivity upon Zeeman splitting $\mu_BH$.
We show th... | 1995-01-08 | 2016-08-31 | [
"cond-mat"
] | Penny Clarke, L. I. Glazman, and K. A. Matveev |
cond-mat/9501023 | Superconductivity of Carriers Doped into the Static Charge Density Wave
State in 2-Dimensional Square Lattice | On the purpose of studying the effect of long-range Coulomb-interaction in
strongly correlated electronic systems we bring in as its representative the
nearest-neighbor repulsion ($v$) in addition to the on-site repulsion ($u$) and
shall investigate the possibility of the superconducting transition of carriers
doped in... | 1995-01-08 | 2017-02-01 | [
"cond-mat"
] | Junichiro Kishine and Hiroshi Namaizawa |
cond-mat/9501021 | COUPLED BURGERS EQUATIONS - A MODEL OF POLYDISPERSIVE SEDIMENTATION | This paper compares theory and experiment for the kinetics of time-dependent
sedimentation. We discuss non-interacting suspensions and colloids which may
exhibit behavior similar to the one-dimensional motion of compressible gas. The
velocity of sedimentation (or creaming) depends upon the volume fraction of the
consti... | 1995-01-07 | 2016-08-31 | [
"cond-mat"
] | Sergei E. Esipov |
cond-mat/9501022 | Quantum Hall Fluids | We review the effective field theory treatment of topological quantum fluids,
focussing on the Hall fluids. | 1995-01-07 | 2016-08-31 | [
"cond-mat"
] | A. Zee |
cond-mat/9501012 | Matrix model approach to the flux lattice melting in $2D$
superconductors | We investigate a gauged matrix model in the large $N$ limit which is closely
related to the superconductor fluctuation and the flux lattice melting in two
dimensions. With the use of saddle point method the free energy is expanded up
to eighth order for the coupling constant $g$. In the case that the coefficient
of qua... | 1995-01-06 | 2016-08-31 | [
"cond-mat",
"hep-th"
] | A. Fujita and S. Hikami |
cond-mat/9501020 | Diffusion-Limited Annihilation with Initially Separated Reactants | A diffusion-limited annihilation process, A+B->0, with species initially
separated in space is investigated. A heuristic argument suggests the form of
the reaction rate in dimensions less or equal to the upper critical dimension
$d_c=2$. Using this reaction rate we find that the width of the reaction front
grows as $t^... | 1995-01-06 | 2016-08-31 | [
"cond-mat"
] | P.L.Krapivsky |
cond-mat/9501019 | Interactions, Localization, and the Integer Quantum Hall Effect | We report on numerical studies of the influence of Coulomb interactions on
localization of electronic wavefunctions in a strong magnetic field.
Interactions are treated in the Hartree-Fock approximation. Localization
properties are studied both by evaluating participation ratios of Hartree-Fock
eigenfunctions and by st... | 1995-01-06 | 2009-10-28 | [
"cond-mat"
] | S.-R. Eric Yang and A.H. MacDonald |
cond-mat/9501014 | Conductance Fluctuations of Disordered Mesoscopic Devices with Many
Weakly-Coupled Probes | The conductance coefficients of disordered mesoscopic devices with $n$ probes
are investigated within the noninteracting electron approximation at zero
temperature. The probes are eliminated from the theoretical description at the
expense of introducing nonlocal boundary conditions at the position of the
contacts. Cond... | 1995-01-06 | 2016-08-31 | [
"cond-mat"
] | Martin R. Zirnbauer (Cologne University) |
cond-mat/9501016 | Non-magnetic impurities in two dimensional superconductors | A numerical approach to disordered 2D superconductors described by BCS mean
field theory is outlined. The energy gap and the superfluid density at zero
temperature and the quasiparticle density of states are studied. The method
involves approximate self-consistent solutions of the Bogolubov-de$\,$Gennes
equations on fi... | 1995-01-06 | 2016-08-31 | [
"cond-mat"
] | T. Xiang and J. M. Wheatley (IRC in Superconductivity, University of
Cambridge, U.K.) |
cond-mat/9501013 | Universal Finite-Size Scaling Function of the Ferromagnetic Heisenberg
Chain in a Magnetic Field, | The finite-size scaling function of the magnetization of the ferromagnetic
Heisenberg chain is argued to be universal with respect to the magnitude of the
spin. The finite-size scaling function is given explicitly by an analytical
calculation in the classical limit $S=\infty.$ The universality is checked for
$S=1/2$ an... | 1995-01-06 | 2016-08-31 | [
"cond-mat"
] | H. Nakamura, N. Hatano and M. Takahashi, |
cond-mat/9501015 | Contact Interactions of Free Anyons | "Free" ( non-scattered ) Schroedinger anyons are considered. It is shown that
for this special type of contact interactions scattering does not arise. By
formulating the problem for the two particles system with a finite region of
interaction which is then allowed to go to zero, it is established that this
type of the ... | 1995-01-06 | 2015-06-25 | [
"cond-mat"
] | S. Voropaev |
cond-mat/9501018 | From surface to random criticality in layered planar Ising models | A general case of a spatially nonuniform planar layered Ising model, or an
equivalent quantum Ising chain, is analysed with an exact functional real space
renormalization group. Various surface, finite size, quasiperiodic and random
layer (McCoy-Wu) universality classes are obtained and discussed within a
single theore... | 1995-01-06 | 2016-08-31 | [
"cond-mat"
] | Lev Mikheev (Nordita) |
cond-mat/9501017 | Superconductor--insulator transition in d-wave superconductors | We address the question of whether an anisotropic gap $d_{x^2-y^2}$ symmetry
is compatible with localized states in the normal phase. The issue is important
in high $T_c$ superconductors where a superconductor to insulator transition is
observed in the underdoped regime, together with a number of experiments that
suppo... | 1995-01-06 | 2016-08-31 | [
"cond-mat"
] | A.G.Rojo and C.A.Balseiro |
cond-mat/9501011 | Exciton condensate in semiconductor quantum well structures. | We propose that the exciton condensate may form in a well-controlled way in
appropriately arranged semiconductor quantum well structures. The mean-field
theory of Keldysh and Kopaev, exact in both the high density and the low
density limits, is solved numerically to illustrate our proposal. The
electron-hole pairing ga... | 1995-01-05 | 2016-08-31 | [
"cond-mat"
] | Xuejun Zhu, P. B. Littlewood, M. S. Hybertsen, and T. M. Rice |
cond-mat/9501007 | Stability of Chiral Luttinger Liquids and Abelian Quantum Hall States. | A criterion is given for topological stability of Abelian quantum Hall
states, and of Luttinger liquids at the boundaries between such states; this
suggests a selection rule on states in the quantum Hall hierarchy theory. The
linear response of Luttinger liquids to electromagnetic fields is described:
the Hall conducta... | 1995-01-05 | 2016-08-31 | [
"cond-mat"
] | F. D. M. Haldane |
cond-mat/9501009 | Anomalous Spin and Charge Dynamics of the 2D t-J Model at low doping | We present an exact diagonalization study of the dynamical spin and density
correlation function of the 2D t-J model for hole doping < 25%. Both
correlation functions show a remarkably regular, but completely different
scaling behaviour with both hole concentration and parameter values: the
density correlation function... | 1995-01-05 | 2009-10-28 | [
"cond-mat"
] | R. Eder, Y. Ohta, and S. Maekawa (Department of Applied Physics,
Nagoya University) |
cond-mat/9501008 | Bound states of 3He in 3He-4He mixture films | 3He atoms dissolved in superfluid 4He may form dimers (3He)2 in
two-dimensional geometries. We study dimer formation in films of dilute 3He-4He
mixture. After designing a schematic 3He-3He interaction potential we calculate
the dimer binding energy for various substrates. It is shown that 3He impurity
states localized ... | 1995-01-05 | 2009-10-28 | [
"cond-mat"
] | E. Bashkin, N. Pavloff and J. Treiner |
cond-mat/9501010 | Behaviour of the energy gap near a commensurate-incommensurate
transition in double layer quantum Hall systems at nu=1 | The charged excitations in the system of the title are vortex-antivortex
pairs in the spin-texture described in the theory by Yang et al which, in the
commensurate phase, are bound together by a ``string''. It is shown that their
excitation energy drops as the string lengthens as the parallel magnetic field
approaches ... | 1995-01-05 | 2016-08-31 | [
"cond-mat"
] | N. Read (Yale University) |
cond-mat/9501004 | Semiclassical theory of shot-noise suppression | The Boltzmann-Langevin equation is used to relate the shot-noise power of a
mesoscopic conductor to classical transmission probabilities at the Fermi
level. This semiclassical theory is applied to tunneling through n barriers in
series. For n -> infinity the shot noise approaches one third of the Poisson
noise, indepen... | 1995-01-04 | 2016-08-31 | [
"cond-mat"
] | M. J. M. de Jong and C. W. J. Beenakker |
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