Activated escape of periodically modulated systems
Mesoscale and Nanoscale Physics
2009-11-11 v1 Statistical Mechanics
Abstract
The rate of noise-induced escape from a metastable state of a periodically modulated overdamped system is found for an arbitrary modulation amplitude . The instantaneous escape rate displays peaks that vary with the modulation from Gaussian to strongly asymmetric. The prefactor in the period-averaged escape rate depends on nonmonotonically. Near the bifurcation amplitude it scales as . We identify three scaling regimes, with , and 1/2.
Keywords
Cite
@article{arxiv.cond-mat/0504450,
title = {Activated escape of periodically modulated systems},
author = {M. I. Dykman and D. Ryvkine},
journal= {arXiv preprint arXiv:cond-mat/0504450},
year = {2009}
}