A generalizad Fokker-Planck equation for the ratchet problem: Memory effects

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We study stochastic ratchets with inertia in the limit where the time correlations become important. We have developed a Fokker-Planck type equation for the ratchet problem which includes the memory effects. It is tested with comparison to the Langevin simulations. The effect of the memory in the system is analyzed extensively. A positive feedback regime which manifests itself as instabilities is observed. This may be regarded as an illustration of stochastic resonance.

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/29372

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9906082
 http://arxiv.org/abs/cond-mat/9906082

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arXiv