Title
Monte Carlo entropic sampling for the study of metastable states and relaxation paths
Date Issued
01 January 1997
Access level
metadata only access
Resource Type
journal article
Author(s)
Université de Versailles
Abstract
We present a continuous extension of the recent Monte Carlo entropic method for sampling a density of states restricted in dimensionless macroscopic parameters. The method performs a random walk through a two-dimensional macrostate space and provides complete information in the form of continuous functions of the system’s coupling constants. For the example of an Ising system, we project relaxation paths from Monte Carlo Metropolis dynamic over the two-dimensional state space and compare them with a “most probable path” associated with the equilibrium distribution, derived from the density of states. We observe a close agreement between them in the stochastic regime, i.e., before the system escapes from the metastable state. We establish a Markovian macroscopic dynamic over the two macroscopic parameters and we discuss it with respect to the Metropolis microscopic dynamic. © 1997 The American Physical Society.
Start page
5128
End page
5137
Volume
56
Issue
5
Language
English
OCDE Knowledge area
Óptica
Scopus EID
2-s2.0-0000085504
Source
Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
ISSN of the container
1063651X
Sources of information:
Directorio de Producción Científica
Scopus