Entropic stochastic resonance.

P. S. Burada,G. Schmid,D. Reguera,M. Vainstein,J. Rubí,P. Hänggi

Published 2008 in Physical Review Letters

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. The entropic stochastic resonance, characteristic of small-scale systems, may constitute a useful mechanism for the manipulation and control of single molecules and nanodevices.

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