Entropic stochastic resonance.
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.
Institut für Physik, Universität Augsburg, Universitätsstr. 1, D-86135 Augsburg, Germany.
P S
PS
Burada
G
G
Schmid
D
D
Reguera
M H
MH
Vainstein
J M
JM
Rubi
P
P
Hänggi
D019277:Entropy; D005583:Fourier Analysis; D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted; D013269:Stochastic Processes