Stochastic Resonance in Washboard Potentials
Debasis Dan, Mangal. C. Mahato, A. M. Jayannavar
TL;DR
This paper investigates how an overdamped particle's mobility in a periodic potential shows stochastic resonance due to inhomogeneous friction, highlighting that oscillating fields are not necessary for resonance in such media.
Contribution
It demonstrates stochastic resonance in inhomogeneous systems without the need for oscillating external fields, expanding understanding of resonance phenomena in complex media.
Findings
Mobility exhibits stochastic resonance in inhomogeneous media.
Oscillating external fields are not essential for stochastic resonance.
Inhomogeneous friction influences particle dynamics significantly.
Abstract
We study the mobility of an overdamped particle in a periodic potential tilted by a constant force. The mobility exhibits a stochastic resonance in inhomogeneous systems with space dependent friction coefficient. The result indicates that the presence of oscillating external field is not essential for the observability of stochastic resonance, at least in the inhomogenous medium.
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