Generalized Fokker–Planck equations and effective thermodynamics

Pierre-Henri Chavanis

Physica A: Statistical Mechanics and its Applications, 2004, vol. 340, issue 1, 57-65

Abstract: We introduce a new class of Fokker–Planck equations associated with an effective generalized thermodynamical framework. These equations describe a gas of Langevin particles in interaction. The free energy can take various forms which can account for anomalous diffusion, quantum statistics, and lattice models. When the potential of interaction is long-ranged, these equations display a rich structure associated with canonical phase transitions and blow-up phenomena. In the limit of short-range interactions, they reduce to Cahn–Hilliard equations.

Keywords: Generalized Fokker–Planck equations; Generalized thermodynamics; Stochastic processes; Long-range interactions (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:340:y:2004:i:1:p:57-65

DOI: 10.1016/j.physa.2004.03.077

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