Phase velocity and phase diffusion in periodically driven discrete state systems
摘要
We develop a theory to calculate the effective phase diffusion coefficient and the mean phase velocity in periodically driven stochastic models with two discrete states. This theory is applied to a dichotomically driven Markovian two state system. Explicit expressions for the mean phase velocity, the effective phase diffusion coefficient and the P\'eclet number are analytically calculated. The latter shows as a measure of phase-coherence forced synchronization of the stochastic system with respect to the periodic driving. In a second step the theory is applied to a non Markovian two state model modeling excitable systems. The results prove again stochastic synchronization to the periodic driving and are in good agreement with simulations of a stochastic FitzHugh-Nagumo system.
引用
@article{arxiv.cond-mat/0501078,
title = {Phase velocity and phase diffusion in periodically driven discrete state systems},
author = {T. Prager and L. Schimansky-Geier},
journal= {arXiv preprint arXiv:cond-mat/0501078},
year = {2009}
}
备注
11 pages, 7 figures