"Fuzzy" stochastic resonance: robustness against noise tuning due to non Gaussian noises

Details "Fuzzy" stochastic resonance: robustness against noise tuning due to non Gaussian noises "Fuzzy" stochastic resonance: robustness against noise tuning due to non Gaussian noises

2001-03-29

arxiv.org/abs/cond-mat/0103612v2

Physics

Condensed Matter

Statistical Mechanics

RevTex 11pgs., 4 figures. Submited to Physical Review Letters

Scientific paper

We have analyzed the phenomenon of stochastic resonance in a system driven by non Gaussian noises. We have considered both white and colored noises. In the latter case we have obtained a consistent Markovian approximation that enables us to get quasi-analytical results for the signal-to-noise ratio. As the system departs from Gaussian behavior, our main findings are: an enhancement of the response together with a notable robustness against noise tuning. These remarkable findings are supported by extensive numerical simulations. We also discuss the relation with some experiments in sensory systems.

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