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arXiv · 2101.09330

Microscopic Dynamics of Nonlinear Fokker-Planck Equations

Leonardo Santos
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Abstract

We propose a new approach to describe the effective microscopic dynamics of (power-law) nonlinear Fokker-Planck equations. Our formalism is based on a nonextensive generalization of the Wiener process. This allow us to obtain, in addition to significant physical insights, several analytical results with great simplicity. Indeed, we obtain analytical solutions for a nonextensive version of Brownian free-particle and Ornstein-Uhlenbeck process, and explain anomalous diffusive behaviours in terms of memory effects in a nonextensive generalization of Gaussian white noise. Finally, we apply the develop formalism to model thermal noise in electric circuits.

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Leonardo Santos. 2021-01-22. Microscopic Dynamics of Nonlinear Fokker-Planck Equations. https://doi.org/10.1103/physreve.103.032106

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