Stochastic resonance for periodically modulated noise intensity.

Dykman, Mark and Luchinsky, D. G. and McClintock, Peter V. E. and Stein, N. D. and Stocks, N. G. (1992) Stochastic resonance for periodically modulated noise intensity. Physical review a, 46 (4). R1713-R1716. ISSN 1050-2947

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Abstract

A different form of stochastic resonance, in which the weak periodic force is applied multiplicatively (rather than additively) in the noise, has been investigated for a Brownian particle moving in a double-well potential. A regular periodic signal whose amplitude increases sharply with increasing noise intensity is shown to arise when the potential is asymmetric. The experimental measurements are in good agreement with a theoretical analysis.