Stable, metastable and unstable states in the mean-field RFIM at T=0
Disordered Systems and Neural Networks
2009-11-13 v1 Statistical Mechanics
Abstract
We compute the probability of finding metastable states at a given field in the mean-field random field Ising model at T=0. Remarkably, this probability is finite in the thermodynamic limit, even on the so-called ``unstable'' branch of the magnetization curve. This implies that the branch is reachable when the magnetization is controlled instead of the magnetic field, in contrast with the situation in the pure system.
Keywords
Cite
@article{arxiv.0807.3019,
title = {Stable, metastable and unstable states in the mean-field RFIM at T=0},
author = {M. L. Rosinberg and G. Tarjus and F. J. Perez-Reche},
journal= {arXiv preprint arXiv:0807.3019},
year = {2009}
}
Comments
10 pages, 3 figures