Electronic Spectral Functions for Quantum Hall Edge StatesWe have evaluated wavevector-dependent electronic spectral functions for integer and fractional quantum Hall edge states using a chiral Luttinger liquid model. The spectral functions have a finite…U. Zuelicke, A. H. MacDonald·Jul 11, 1996SaveLearn
Enhanced Local Moment Formation in a Chiral Luttinger LiquidWe derive here a stability condition for a local moment in the presence of an interacting sea of conduction electrons. The conduction electrons are modeled as a Luttinger liquid in which chirality…Philip Phillips, Nancy Sandler·Jul 11, 1996SaveLearn
Universal Crossover between Efros-Shklovskii and Mott Variable-Range-Hopping RegimesA universal scaling function, describing the crossover between the Mott and the Efros-Shklovskii hopping regimes, is derived, using the percolation picture of transport in strongly localized systems.…Yigal Meir·Jul 11, 1996SaveLearn
Analytical Results for Nontrivial Polydispersity Exponents in Aggregation ModelsWe study a Smoluchowski equation describing a simple mean-field model of particles moving in d dimensions and aggregating with conservation of `mass' s=RD (R is the particle radius). In…Stéphane Cueille, Clément Sire·Jul 11, 1996SaveLearn
Noise in a Superconducting Quantum Point ContactThis manuscript contains a Comment on "Supercurrent Noise in Quantum Point Contacts" by D. Averin and H.T. Iman, Phys. Rev. Lett. 76, 3814 (1996) [cond-mat/9511128].A. Martin-Rodero, A. Levy Yeyati, F. J. Garcia-Vidal et al.·Jul 11, 1996SaveLearn
Front localization in a ballistic annihilation modelWe study the possibility of localization of the front present in a one-dimensional ballistically-controlled annihilation model in which the two annihilating species are initially spatially separated.…Pierre-Antoine Rey, Michel Droz, Jaroslaw Piasecki·Jul 11, 1996SaveLearn
Folding of the Triangular Lattice with Quenched Random Bending RigidityWe study the problem of folding of the regular triangular lattice in the presence of a quenched random bending rigidity + or - K and a magnetic field h (conjugate to the local normal vectors to the…P. Di Francesco, E. Guitter, S. Mori·Jul 11, 1996SaveLearn
Apparent Rate Constant for Diffusion-Controlled Three molecular (catalytic) reactionWe present simple explicit estimates for the apparent reaction rate constant for three molecular reactions, which are important in catalysis. For small concentrations and d> 1, the apparent…S. F. Burlatsky, M. Moreau·Jul 10, 1996SaveLearn
Size Dependence In The Disordered Kondo ProblemWe study here the role randomly-placed non-magnetic scatterers play on the Kondo effect. We show that spin relaxation effects (with time τso)in the vertex corrections to the Kondo self-energy…Ivar Martin, Yi Wan, Philip Phillips·Jul 10, 1996SaveLearn
Motion of a driven tracer particle in a one-dimensional symmetric lattice gasWe study the dynamics of a tracer particle subject to a constant driving force E in a one-dimensional lattice gas of hard-core particles whose transition rates are symmetric. We show that the mean…S. F. Burlatsky, G. Oshanin, M. Morea et al.·Jul 10, 1996SaveLearn
Analytical Results for Multifractal Properties of Spectra of Quasiperiodic Hamiltonians near the Periodic ChainThe multifractal properties of the electronic spectrum of a general quasiperiodic chain are studied in first order in the quasiperiodic potential strength. Analytical expressions for the generalized…Andreas Rudinger, Clement Sire·Jul 10, 1996SaveLearn
Crossover from critical orthogonal to critical unitary statistics at the Anderson transitionWe report a novel scale-independent, Aharonov-Bohm flux controlled crossover from critical orthogonal to critical unitary statistics at the disorder induced metal insulator transition. Our numerical…M. Batsch, L. Schweitzer, I. Kh. Zharekeshev et al.·Jul 10, 1996SaveLearn
Self - organized - criticality and synchronization in pulse coupled relaxation oscillator systems: the Olami, Feder and Christensen model and the Feder and Feder modelWe reexamine the dynamics of the Olami, Feder and Christensen (OFC) model. We show that, depending on the dissipation, it exhibits two different behaviors and that it can or cannot show self -…Samuele Bottani, Bertrand Delamotte·Jul 10, 1996SaveLearn
Simple Model of Large Scale Organization in EvolutionA mathematical model of interacting species filling ecological niches left by the extinction of others is introduced. Species organize themselves into genera of all sizes. The size of a genus on…Susanna Manrubia, Maya Paczuski·Jul 9, 1996SaveLearn
Anomalous magnetic response of the valence-fluctuating compound YbInCu4The exact solution of the spin one-half Falicov-Kimball model, with random hopping between the lattice sites, is used to explain the anomalous magnetic response of Yb-based valence-fluctuating…J. K. Freericks, V. Zlatic·Jul 9, 1996SaveLearn
Correlations within Eigenvectors and Transition Amplitudes in the Two-Body Random Interaction ModelIt is shown that the two-body character of the interaction in a many-body system gives rise to specific correlations between the components of compound states, even if this interaction is completely…V. V. Flambaum, G. F. Gribakin, F. M. Izrailev·Jul 9, 1996SaveLearn
Spreading of a Macroscopic Lattice GasWe present a simple mechanical model for dynamic wetting phenomena. Metallic balls spread along a periodically corrugated surface simulating molecules of liquid advancing along a solid substrate. A…S. F. Burlatsky, J. G. Berberian, J. Shore et al.·Jul 9, 1996SaveLearn
Disorder and Integral Quantum Hall EffectThe quantum Hall conductance of a disordered two-dimensional gas of non-interacting electrons is re-examined for its integrity against disorder in the limit of no mixing between different Landau…N. Kumar·Jul 9, 1996SaveLearn
A Constrained Path Monte Carlo Method for Fermion Ground StatesWe describe and discuss a recently proposed quantum Monte Carlo algorithm to compute the ground-state properties of various systems of interacting fermions. In this method, the ground state is…Shiwei Zhang, J. Carlson, J. E. Gubernatis·Jul 9, 1996SaveLearn
Reply to Comment on "Criterion that Determines the Foldability of Proteins"We point out that the correlation between folding times and σ= (Tθ - Tf)/Tθ in protein-like heteropolymer models where Tθ and Tf are the collapse and folding transition…D. K. Klimov, D. Thirumalai·Jul 8, 1996SaveLearn
Charged Scalar Field in an external magnetic Field: Renormalisation and Universal DiamagnetismThe physical and mathematical mechanism behind diamagnetism of N (finite) spinless bosons (relativistic or non-relativistic) is well known. The mathematical signature of this diamagnetism follows…Debnarayan Jana·Jul 8, 1996SaveLearn
Critical dynamics in the 2d classical XY-model: a spin dynamics studyUsing spin-dynamics techniques we have performed large-scale computer simulations of the dynamic behavior of the classical three component XY-model (i.e. the anisotropic limit of an easy-plane…H. G. Evertz, D. P. Landau·Jul 8, 1996SaveLearn
Theory of Lattice and Electronic Fluctuations in Weakly Localized Spin-Peierls SystemsA theoretical approach to the influence of one-dimensional lattice fluctuations on electronic properties in weakly localized spin-Peierls systems is proposed using the renormalization group and the…Claude Bourbonnais, Benoit Dumoulin·Jul 8, 1996SaveLearn
A Neutron Scattering Study of Magnetic Excitations in the Spin Ladder (VO)2P2O7In this letter we report results from inelastic neutron scattering experiments on powder samples of vanadyl pyrophosphate, (VO)2P2O7. We see evidence for three magnetic excitations, at 3.5 meV, 6.0…A. W. Garrett, S. E. Nagler, T. Barnes et al.·Jul 8, 1996SaveLearn
Constraint Quantization of Slave-Particle TheoriesWe start from the Barnes-Coleman slave-particle description, where the Hubbard operators X are decomposed into a product of fermionic (fα) and bosonic (b) operators. The quantum mechanical…Christian Helm, Joachim Keller·Jul 8, 1996SaveLearn