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arXiv · 1103.4840

Fokker-Planck equation for transport of wave packets in nonlinear disordered media

Nicolas Cherroret·Thomas Wellens
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Abstract

Starting from first principles, we formulate a theory of wave packet propagation in a nonlinear, disordered medium of any dimension, through the derivation of a Fokker-Planck transport equation. Our theory is based on a diagrammatic expansion of the wave packet's density, and is supported by a heuristic picture that involves a Boltzmann equation with an effective, external potential. Our approach also confirms results obtained in previous work for two-dimensional, nonlinear disordered media.

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Nicolas Cherroret, Thomas Wellens. 2011-04-06. Fokker-Planck equation for transport of wave packets in nonlinear disordered media. https://doi.org/10.1103/physreve.84.021114

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