Stochastic resonance and heat fluctuations in a driven double-well system
Statistical Mechanics
2009-11-13 v2
Abstract
We study a periodically driven (symmetric as well as asymmetric)double-well potential system at finite temperature. We show that mean heat loss by the system to the environment(bath) per period of the applied field is a good quantifier of stochastic resonance. It is found that the heat fluctuations over a single period are always larger than the work fluctuations. The observed distributions of work and heat exhibit pronounced asymmetry near resonance. The heat losses over a large number of periods satisfies the conventional steady-state fluctuation theorem, though different relation exists for this quantity.
Cite
@article{arxiv.0708.0496,
title = {Stochastic resonance and heat fluctuations in a driven double-well system},
author = {Mamata Sahoo and Shantu Saikia and Mangal C. Mahato and A. M. Jayannavar},
journal= {arXiv preprint arXiv:0708.0496},
year = {2009}
}
Comments
modified version, 10 figures