Stochastic resonance in bistable confining potentials |
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| Authors: | E. Heinsalu M. Patriarca F. Marchesoni |
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| Affiliation: | 1.National Institute of Chemical Physics and Biophysics,Tallinn,Estonia;2.IFISC, Instituto de Física Interdisciplinar y Sistemas Complejos (CSIC-UIB),Palma de Mallorca,Spain;3.Dipartimento di Fisica,Università di Camerino,Camerino,Italy |
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| Abstract: | We study the effects of the confining conditions on the occurrence of stochastic resonance (SR) in continuous bistable systems. We model such systems by means of double-well potentials that diverge like |x|q for |x|↦∞. For super-harmonic (hard) potentials with q > 2 the SR peak sharpens with increasing q, whereas for sub-harmonic (soft) potentials, q < 2, it gets suppressed. |
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| Keywords: | KeywordHeading" >PACS 05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion 02.50.Ey Stochastic processes |
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