Anomalous Diffusion in Velocity Space

Details Anomalous Diffusion in Velocity Space Anomalous Diffusion in Velocity Space

2009-07-16

arxiv.org/abs/0907.2793v1

Physics

Condensed Matter

Statistical Mechanics

11 pages, no figures and tables

Scientific paper

The problem of anomalous diffusion in the momentum space is considered on the basis of the appropriate probability transition function (PTF). New general equation for description of the diffusion of heavy particles in the gas of the light particles is formulated on basis of the new approach similar to one in coordinate space (S. Trigger et al.). The obtained results permit to describe the various situations when the probability transition function (PTF) has a long tail in the momentum space. The effective friction and diffusion coefficients are found.

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