A nonlinear drift which leads to κ-generalized distributions
نویسنده
چکیده
We consider a system described by a Fokker-Planck equation with a new type of momentumdependent drift coefficient which asymptotically decreases as −1/p for a large momentum p. It is shown that the steady-state of this system is a κ-generalized Gaussian distribution, which is a non-Gaussian distribution with a power-law tail. PACS. 05.20.Dd Kinetic theory – 05.20.-y Classical statistical mechanics – 05.90.+m Other topics in statistical physics
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تاریخ انتشار 2009