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Stochastic resonance in bistable confining potentials

AuthorsHeinsalu, Els ; Patriarca, Marco ; Marchesoni, Fabio
Keywords[PACS] Fluctuation phenomena, random processes, noise, and Brownian motion
[PACS] Stochastic processes
Issue Date18-Feb-2009
CitationEuropean Physical Journal B 69: 19-22 (2009)
AbstractWe 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.
Description5 pages, 1 figure.-- PACS nrs.: 05.40.-a; 02.50.Ey. ArXiv pre-print: http://arxiv.org/abs/0901.2523
Publisher version (URL)http://dx.doi.org/10.1140/epjb/e2009-00050-6
Appears in Collections:(IFISC) Artículos
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