Stochastic resonance in bistable confining potentials. On the role of confinement
arXiv:0901.2523 · doi:10.1140/epjb/e2009-00050-6
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 the q-th power of |x| when |x| goes to infinite. 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.
4 pages, 4 figures