Lever-assisted two-noise stochastic resonance

A critical interplay of two correlated noises in a nonlinear symmetrical two-well potential system is experimentally demonstrated. One state can become completely noise free, leading to an infinite Kramers time. If an independent lever breaks the potential symmetry, stochastic resonance is recovered...

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Bibliographic Details
Published inPhysical review letters Vol. 90; no. 7; p. 073901
Main Authors Singh, K P, Ropars, G, Brunel, M, Le Floch, A
Format Journal Article
LanguageEnglish
Published United States 21.02.2003
Subjects
Models, Theoretical
Signal Processing, Computer-Assisted
Stochastic Processes
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Summary:A critical interplay of two correlated noises in a nonlinear symmetrical two-well potential system is experimentally demonstrated. One state can become completely noise free, leading to an infinite Kramers time. If an independent lever breaks the potential symmetry, stochastic resonance is recovered. In this new regime, we obtain a plateau, i.e., a high signal-to-noise ratio even for vanishing forcing signals.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.90.073901