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Condensed Matter papers — page 140

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Inertia, coarsening and fluid motion in binary mixtures
Symmetric binary fluids, quenched into a regime of immiscibility, undergo phase separation by spinodal decomposition. In the late stages, the fluids are separated by sharply defined, but curved,…
M. E. Cates, V. M. Kendon, P. Bladon et al.Jul 31, 1999
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Wave-packet dynamics in slowly perturbed crystals: Gradient corrections and Berry-phase effects
We present a unified theory for wave-packet dynamics of electrons in crystals subject to perturbations varying slowly in space and time. We derive the wave-packet energy up to the first order…
Ganesh Sundaram, Qian NiuJul 31, 1999
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A Composite Fermion Description of Rotating Bose-Einstein Condensates
We study the properties of rotating Bose-Einstein condensates in parabolic traps, with coherence length large compared to the system size. In this limit, it has been shown that unusual groundstates…
N. R. Cooper, N. K. WilkinJul 30, 1999
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A Modified Approach to Single-Spin Detection Using Magnetic Resonance Force Microscopy
The magnetic moment of a single spin interacting with a cantilever in magnetic resonance force microscopy (MRFM) experiences quantum jumps in orientation rather than smooth oscillations. These jumps…
Gennady P. Berman, Vladimir I. TsifrinovichJul 30, 1999
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Dipoles at ν=1
We consider the problem of Bosonic particles interacting repulsively in a strong magnetic field at the filling factor ν=1. We project the system in the Lowest Landau Level and map the dynamics into…
V. PasquierJul 30, 1999
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Charge Frustration Effects in Capacitively Coupled Two-Dimensional Josephson-Junction Arrays
We investigate the quantum phase transitions in two capacitively coupled two-dimensional Josephson-junction arrays with charge frustration. The system is mapped onto the S=1 and S=1/2 anisotropic…
Minchul Lee, Mahn-Soo Choi, M. Y. ChoiJul 29, 1999
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Quantum ergodicity for electrons in two dimensions
We study the effect of electron-electron interaction on a two dimensional (2D) disordered lattice. For the case of two electrons the analytical estimates are presented showing a transition from…
Dima L. Shepelyansky, Pil Hun SongJul 28, 1999
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Partitioning of a Polymer Chain between Two Confining Cavities: The Roles of Excluded Volume and Finite Size Conduits
Lattice-field calculations are performed on a Gaussian polymer chain confined to move within the region defined by two fused spheres. The results of the calculations are in accord with recent…
S. Tsonchev, R. D. CoalsonJul 28, 1999
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A Ball in a Groove
We study the static equilibrium of an elastic sphere held in a rigid groove by gravity and frictional contacts, as determined by contact mechanics. As a function of the opening angle of the groove…
Thomas C. Halsey, Deniz ErtasJul 28, 1999
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Intrinsic localized modes in the charge-transfer solid PtCl
We report a theoretical analysis of intrinsic localized modes in a quasi-one-dimensional charge-transfer-solid [Pt(en)2][Pt(en)2 Cl2](ClO4)4(PtCl). We discuss strongly nonlinear features of…
Konstantin Kladko, Jiri Malek, Alan R. BishopJul 28, 1999
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A simple solid-on-solid model of epitaxial thin films growth: inhomogeneous multilayered sandwiches
In this work a simple solid-on-solid (SOS) model of inhomogeneous films epitaxial growth is presented. The results of the computer simulations based on the random deposition (RD) enriched by a local…
K. Malarz, A. Z. MaksymowiczJul 28, 1999
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A simple solid-on-solid model of epitaxial thin films growth: surface morphology anisotropy
In this paper we present a generalization of a simple solid-on-solid epitaxial model of thin films growth, when surface morphology anisotropy is provoked by anisotropy in model control parameters:…
K. Malarz, A. Z. MaksymowiczJul 28, 1999
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A simple solid-on-solid model of epitaxial thin films growth: surface roughness and dynamics
The random deposition model must be enriched to reflect the variety of surface roughness due to some material characteristics of the film growing by vacuum deposition or sputtering. The essence of…
K. Malarz, A. Z. MaksymowiczJul 28, 1999
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Origin of Native Driving Force in Protein Folding
We derive an expression with four adjustable parameters that reproduces well the 20x20 Miyazawa-Jernigan potential matrix extracted from known protein structures. The numerical values of the…
Z. H. Wang, H. C. LeeJul 27, 1999
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Weighted Fixed Points in Self-Similar Analysis of Time Series
The self-similar analysis of time series is generalized by introducing the notion of scenario probabilities. This makes it possible to give a complete statistical description for the forecast…
V. I. Yukalov, S. GluzmanJul 27, 1999
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`Composite particles' and the eigenstates of Calogero-Sutherland and Ruijsenaars-Schneider
We establish a one-to-one correspondance between the ''composite particles'' with N particles and the Young tableaux with at most N rows. We apply this correspondance to the…
M. C. BergèreJul 27, 1999
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Stability criterion for attractive Bose-Einstein condensates
A general stability criterion is derived for the D-dimensional ground states of the Gross-Pitaevskii equation, which describes attractive Bose-Einstein condensates confined in a magnetic trap. These…
Luc Berge, Tristram J. Alexander, Yuri S. KivsharJul 27, 1999
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The Three-Magnon Contribution to the Spin Correlation Function in Integer-Spin Antiferromagnetic Chains
The exact form factor for the O(3) non-linear sigma model is used to predict the three-magnon contribution to the spin correlation function, S(q,w), near wavevector q=pi in an integer spin,…
Matthew Horton, Ian AffleckJul 27, 1999
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The structural and electronic properties of germanium clathrates
The structural and electronic properties of germanium clathrates Ge46 and K8Ge46 are studied by first principles calculations within the local density approximation. The equilibrium…
Jijun Zhao, Alper Buldum, Jianping Lu et al.Jul 27, 1999
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Download relaxation dynamics on the WWW following newspaper publication of URL
A few key properties of the World-Wide-Web (WWW) has been established indicating the lack of any characteristic scales for the WWW, both in its topology and in its dynamics. Here, we report an…
Anders Johansen, Didier SornetteJul 23, 1999
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Intermittency and Nonextensivity in Turbulence and Financial Markets
We present a new framework for modeling the statistical behavior of both fully developed turbulence and short-term dynamics of financial markets based on the nonextensive thermostatistics proposed by…
F. M. Ramos, C. Rodrigues Neto, R. R. RosaJul 23, 1999
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Nucleation in dilute 3He-4He liquid mixtures at low temperatures
We present a study of phase separation from supersaturated 3He-4He liquid mixtures at low temperatures addressing both the degree of critical supersaturation Dx and the thermal-to-quantum crossover…
M. Barranco, M. Guilleumas, D. M. Jezek et al.Jul 22, 1999
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Bogoliubov's Theory: A Paradigm of Quantum Phase Transitions
This short essay discusses the application of Bogoliubov's theory of superfluidity in the context of quantum phase transitions.
Adriaan M. J. SchakelJul 21, 1999
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Metallic phase between the Fermi glass and the Wigner crystal in two dimensions
For intermediate Coulomb energy to Fermi energy ratios rs, spinless fermions in a two-dimensional random potential form a new quantum phase, different from the Fermi glass (weakly interacting…
Xavier Waintal, Giuliano Benenti, Jean-Louis PichardJul 21, 1999
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Andreev Spectroscopy for Superconductive Phase Qubit
New method to probe quantum dynamics of the order parameter phase of a small superconductive island is proposed. The idea is to measure Andreev subgap conductance between the island and a dirty…
M. V. Feigel'man, V. B. Geshkenbein, L. B. Ioffe et al.Jul 21, 1999
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