Droplet Nucleation and Domain Wall Motion in a Bounded Interval
Statistical Mechanics
2007-05-23 v1 High Energy Physics - Theory
Abstract
We study a spatially extended model of noise-induced magnetization reversal: a classical Ginzburg-Landau theory, restricted to a bounded interval and perturbed by weak spatiotemporal noise. We compute the activation barrier and Kramers prefactor. As the interval length increases, a transition between activation regimes occurs, at which the prefactor diverges. We relate this to transitions that occur in low-temperature quantum field theory.
Cite
@article{arxiv.cond-mat/0108217,
title = {Droplet Nucleation and Domain Wall Motion in a Bounded Interval},
author = {Robert S. Maier and D. L. Stein},
journal= {arXiv preprint arXiv:cond-mat/0108217},
year = {2007}
}
Comments
REVTeX, 4 pages, 3 Postscript figures