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Stochastic resonance for periodically modulated noise intensity.

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<mark>Journal publication date</mark>08/1992
<mark>Journal</mark>Physical review a
Issue number4
Pages (from-to)R1713-R1716
Publication StatusPublished
<mark>Original language</mark>English


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.