Fluctuation-Dissipation Theorem for Metastable Systems
Statistical Mechanics
2009-11-10 v1
Abstract
We show that an appropriately defined fluctuation-dissipation theorem, connecting generalized susceptibilities and time correlation functions, is valid for times shorter than the nucleation time of the metastable state of Markovian systems satisfying detailed balance. This is done by assuming that such systems can be described by a superposition of the ground and first excited states of the master equation. We corroborate our results numerically for the metastable states of a two-dimensional Ising model.
Cite
@article{arxiv.cond-mat/0303281,
title = {Fluctuation-Dissipation Theorem for Metastable Systems},
author = {G. Baez and H. Larralde and F. Leyvraz and R. A. Mendez-Sanchez},
journal= {arXiv preprint arXiv:cond-mat/0303281},
year = {2009}
}
Comments
Revtex, 4 pages, 1 figure, to appear in Physical Review Letters