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Stochastic resonance for periodically modulated noise intensity.

Research output: Contribution to journalJournal article


Journal publication date08/1992
JournalPhysical Review A
Journal number4
Original languageEnglish


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.