A parametric variant of resonant activation: Two-state model approach

Mean first passage time of a periodically driven particle for its escape over a fluctuating barrier with wells remaining unbiased exhibits a resonance when the frequency of the driving field is varied. This parametric variant of resonant activation and associated features of noise induced transition...

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Bibliographic Details
Published in:The Journal of chemical physics 2006-09, Vol.125 (12), p.124102-124102-6
Main Authors: Ghosh, Pulak Kumar, Ray, Deb Shankar
Format: Article
Language:English
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Summary:Mean first passage time of a periodically driven particle for its escape over a fluctuating barrier with wells remaining unbiased exhibits a resonance when the frequency of the driving field is varied. This parametric variant of resonant activation and associated features of noise induced transition are realized in terms of a two-state model to estimate analytically several quantifiers of the escape event. Numerical simulation on a continuous double-well model collaborates our theoretical analysis.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.2348867