Entropic Stochastic Resonance
P.S. Burada, G. Schmid, D. Reguera, M.H. Vainstein, J.M. Rubi, and P., Hanggi
TL;DR
This paper introduces Entropic Stochastic Resonance, a phenomenon where confined geometries induce resonance effects in Brownian particles under periodic forcing, useful for controlling nanoscale systems.
Contribution
The study demonstrates how boundary-induced entropic effects can produce stochastic resonance, expanding understanding of noise-assisted phenomena in confined systems.
Findings
Entropic potential enhances spectral amplification at optimal noise levels.
Resonance observed in systems with uneven boundaries and periodic driving.
Potential applications in manipulating single molecules and nanodevices.
Abstract
We present a novel scheme for the appearance of Stochastic Resonance when the dynamics of a Brownian particle takes place in a confined medium. The presence of uneven boundaries, giving rise to an entropic contribution to the potential, may upon application of a periodic driving force result in an increase of the spectral amplification at an optimum value of the ambient noise level. This Entropic Stochastic Resonance (ESR), characteristic of small-scale systems, may constitute a useful mechanism for the manipulation and control of single-molecules and nano-devices.
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