Finite size effects on measures of critical exponents in d=3 O(N) modelsWe study the critical properties of three-dimensional O(N) models, for N=2,3,4. Parameterizing the leading corrections-to-scaling for the η exponent, we obtain a reliable infinite volume…H. G. Ballesteros, L. A. Fernandez, V. Martin-Mayor et al.·Jun 27, 1996SaveLearn
Nature of eigenstates in a mesoscopic ring coupled to a side branchWe formalize the parity effect of a multichannel ring coupled to a side branch using the tight binding model. We find that the tight binding model gives slightly different result from the continuum…P. A. Sreeram, P. Singha Deo·Jun 27, 1996SaveLearn
Feed-Forward Chains of Recurrent Attractor Neural Networks Near SaturationWe perform a stationary state replica analysis for a layered network of Ising spin neurons, with recurrent Hebbian interactions within each layer, in combination with strictly feed-forward Hebbian…A. C. C. Coolen, L. Viana·Jun 27, 1996SaveLearn
Spin-orbit interaction in the quantum dotThe electronic states of a parabolic quantum dot in a magnetic field are studied with the inclusion of the spin-orbit interaction. The analitycal formulae for the ground state energy of the…L. Jacak, J. Krasnyj, A. Wojs·Jun 27, 1996SaveLearn
Short-Range Antiferromagnetic Correlations and the Photoemission SpectrumWe present Quantum Monte Carlo results on the antiferromagnetic correlations and the one-electron excitations of the doped two-dimensional Hubbard model. These results are helpful in interpreting the…N. Bulut·Jun 26, 1996SaveLearn
Absence of non-trivial asymptotic scaling in the Kashchiev model of polynuclear growthIn this brief comment we show that, contrary to previous claims [Bartelt M C and Evans J W 1993 J.\ Phys.\ A 26 2743], the asymptotic behaviour of the Kashchiev model of polynuclear…T. J. Newman, A. Volmer·Jun 26, 1996SaveLearn
Theory of continuum percolation II. Mean field theoryI use a previously introduced mapping between the continuum percolation model and the Potts fluid to derive a mean field theory of continuum percolation systems. This is done by introducing a new…Alon Drory·Jun 26, 1996SaveLearn
Theory of continuum percolation I. General formalismThe theoretical basis of continuum percolation has changed greatly since its beginning as little more than an analogy with lattice systems. Nevertheless, there is yet no comprehensive theory of this…Alon Drory·Jun 26, 1996SaveLearn
Dynamic Behavior of Spin Glass Systems on Quenched Phi-3 GraphsWe study the dynamical out-of-equilibrium behavior of a J = 1 Ising spin glass on quenched ϕ3 graphs. We show that magnetization and energy decay with a power law behavior, with exponents…C. Baillie, D. A. Johnston, E. Marinari et al.·Jun 26, 1996SaveLearn
Symmetry Analysis of the Nonlinear Optical Response: New Magneto-Optical Effect in Second Harmonic GenerationUsing symmetry arguments we show how optical second harmonic generation (SHG) can be used to detect antiferromagnetism at surfaces and in thin films. Based on the group theoretical analysis of the…A. Daehn, W. Huebner, K. H. Bennemann·Jun 26, 1996SaveLearn
Interface Roughening in a Hydrodynamic Lattice-Gas Model with SurfactantUsing a hydrodynamic lattice-gas model, we study interface growth in a binary fluid with various concentrations of surfactant. We find that the interface is smoothed by small concentrations of…Francis W. Starr, Stephen T. Harrington, Bruce M. Boghosian et al.·Jun 25, 1996SaveLearn
Exact calculation of thermodynamical quantities of the integrable t-J modelThe specific heat and the compressibility for the integrable t-J model are calculated showing Luttinger liquid behavior for low temperatures. A Trotter-Suzuki mapping and the quantum transfer matrix…G. Juttner, A. Klumper·Jun 25, 1996SaveLearn
Theory of Kinetic Partitioning in Protein Folding (With Application to Prions)In this paper we study the phenomenon of kinetic partitioning when a polypeptide chain has two ground state conformations one of which is more kinetically reachable than the other. This question is…V. I. Abkevich, A. M. Gutin, E. I. Shakhnovich·Jun 25, 1996SaveLearn
Adiabatic Ground-State Properties of Spin Chains with Twisted Boundary ConditionsWe study the Heisenberg spin chain with twisted boundary conditions, focusing on the adiabatic flow of the energy spectrum as a function of the twist angle. In terms of effective field theory for the…T. Fukui, N. Kawakami·Jun 25, 1996SaveLearn
Density Correlations of Magnetic Impurities and DisorderWe consider an electron coupled to a random distribution of point vortices in the plane (magnetic impurities). We analyze the effect of the magnetic impurities on the density of states of the test…Jean Desbois, Cyril Furtlehner, Stéphane Ouvry·Jun 25, 1996SaveLearn
The effects of compressible and incompressible states on the FIR-absorption of quantum wires and dots in a magnetic fieldWe investigate the effects of compressible and incompressible states on the FIR-absorption of quantum wires and dots in a homogeneous perpendicular magnetic field. The electron-electron interaction…Vidar Gudmundsson, Arne Brataas, Christoph Steinebach et al.·Jun 25, 1996SaveLearn
Crossover to Self-Organized Criticality in an Inertial Sandpile ModelWe introduce a one-dimensional sandpile model which incorporates particle inertia. The inertial dynamics are governed by a new parameter which, as it passes through a threshold value, alters the…D. A. Head, G. J. Rodgers·Jun 25, 1996SaveLearn
A new field-theoretical formulation for the motion of an electron in a quenched disorder potentialFollowing a proposal by Aronov and Ioselevich, we express the Green functions (GF) of a noninteracting disordered Fermi system as a functional integral on a real time/frequency lattice. The…W. Weller, F. Stefani, M. Souleiman·Jun 25, 1996SaveLearn
Non-equilibrium surface diffusion in the O/W(110) systemIn this Letter, we present results of an extensive Monte Carlo study of the O/W(110) system under non-equilibrium conditions. We study the mean square displacements and long wavelength density…I. Vattulainen, J. Merikoski, T. Ala-Nissila et al.·Jun 25, 1996SaveLearn
Low-Energy Properties of Antiferromagnetic Spin-1/2 Heisenberg Ladders with an Odd Number of LegsAn effective low-energy description for multi-leg spin-1/2 Heisenberg ladders with an odd number of legs is proposed. Using a newly developed Monte Carlo loop algorithm and exact diagonalization…Beat Frischmuth, Stephan Haas, German Sierra et al.·Jun 25, 1996SaveLearn
On the Bloch Theorem Concerning Spontaneous Electric CurrentWe study the Bloch theorem which states absence of the spontaneous current in interacting electron systems. This theorem is shown to be still applicable to the system with the magnetic field induced…Yoji Ohashi, Tsutomu Momoi·Jun 25, 1996SaveLearn
Statistics of Rare Events in Disordered ConductorsAsymptotic behavior of distribution functions of local quantities in disordered conductors is studied in the weak disorder limit by means of an optimal fluctuation method. It is argued that this…Igor E. Smolyarenko, Boris L. Altshuler·Jun 25, 1996SaveLearn
Thermodynamic Properties of Generalized Exclusion StatisticsWe analytically calculate some thermodynamic quantities of an ideal g-on gas obeying generalized exclusion statistics. We show that the specific heat of a g-on gas (g ≠ 0) vanishes linearly…Hyun Seok Yang, Bum-Hoon Lee, Chanyong Park·Jun 24, 1996SaveLearn
Chain length scaling of protein folding timeFolding of protein-like heteropolymers into unique 3D structures is investigated using Monte Carlo simulations on a cubic lattice. We found that folding time of chains of length N scales as Nλ…A. M. Gutin, V. I. Abkevich, E. I. Shakhnovich·Jun 24, 1996SaveLearn
Non-perturbative Effects Near the Upper Critical Field in Type-II SuperconductorsThe properties of a conventional type-II superconductor near the upper critical field are usually calculated using a perturbative expansion in the strength of the order parameter. Here we show that…Safi R. Bahcall·Jun 24, 1996SaveLearn