The effect of confinement on stochastic resonance in continuous bistable systems

Details The effect of confinement on stochastic resonance in continuous bistable systems The effect of confinement on stochastic resonance in continuous bistable systems

2011-09-28

arxiv.org/abs/1109.6311v2

Physics

Condensed Matter

Statistical Mechanics

7 pages, 11 figures

Scientific paper

Using the input energy per cycle as a quantifier of stochastic resonance (SR), we show that SR is observed in superharmonic (hard) potentials. However, it is not observed in subharmonic (soft) potentials, even though the potential is bistable. These results are consistent with recent observations based on amplitude of average position as a quantifier. In both soft and hard potentials, we observe resonance phenomenon as a function of the driving frequency. The nature of probability distributions of average work are qualitatively different for soft and hard potentials.

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