Now showing items 1-10 of 677
Critical currents and melting temperature of a two-dimensional vortex lattice with periodic pinning
The critical current and melting temperature of a vortex system are analyzed. Calculations are made for a two-dimensional film at finite temperature with two kinds of periodic pinning: hexagonal and Kagomé. A transport ...
Langevin simulation of scalar fields: Additive and multiplicative noises and lattice renormalization
(Elsevier B.V., 2012-08-15)
We consider the Langevin lattice dynamics for a spontaneously broken 44 scalar field theory where both additive and multiplicative noise terms are incorporated. The lattice renormalization for the corresponding stochastic ...
Ashcroft model potential study of lattice dynamics of alpha-iron and barium
(Sociedad Mexicana De FisicaCoyoacanMéxico, 1999)
Analysis of Lattice Size, Energy Density and Denaturation for a One-Dimensional DNA Model
There are several mechanical models to describe the DNA phenomenology. In this work the DNA denaturation is stu- died under thermodynamical and dynamical point of view using the well known Peyrard-Bishop model. The ...
Molecular Dynamics simulations of track formation at different ensembles
A series of Molecular Dynamics simulations of thermal spikes has been run in zircon. For two different ensembles: microcanonical one and a combination of microcanonical one acting on the simulation core with Langevin one ...
Electron–lattice coupling after high-energy deposition in aluminum
This paper presents an analysis of the parameters of highly-excited electron subsystem of aluminum, appearing e.g. after swift heavy ion impact or laser pulse irradiation. For elevated electron temperatures, the electron ...
Dynamics of the deconfinement transition
We estimate the dissipation coefficient Γ that appears in Ginzburg-Landau-Langevin equations that describe phenomenologically the deconfinement transition in QCD. This is done through the implementation of Glauber dynamics ...
Nonequilibrium dynamics of quantum fields
(Elsevier B.V., 2007-02-01)
The nonequilibrium effective equation of motion for a scalar background field in a thermal bath is studied numerically. This equation emerges from a microscopic quantum field theory derivation and it is suitable to a ...
Avalanchelike magnetic relaxation in the peak-effect regime of a Nb-O solid solution
(American Physical SocCollege PkEUA, 1998)