{ "id": "cond-mat/0501676", "version": "v1", "published": "2005-01-27T17:54:20.000Z", "updated": "2005-01-27T17:54:20.000Z", "title": "On the higher order corrections to the Fokker-Planck equation", "authors": [ "A. V. Plyukhin" ], "comment": "to appear in Physica A", "journal": "Physica A 351, 198 (2005)", "doi": "10.1016/j.physa.2004.11.068", "categories": [ "cond-mat.stat-mech" ], "abstract": "The Rayleigh model of nonlinear Brownian motion is revisited in which the heavy particle of mass M interacts with ideal gas molecules of mass m via instantaneous collisions. Using the van Kampen method of expansion of the master equation, non-linear corrections to the Fokker-Planck equation are obtained up to sixth order in the small parameter m/M, improving earlier results. The role and origin of non-Gaussian statistics of the random force in the corresponding Langevin equation are also discussed.", "revisions": [ { "version": "v1", "updated": "2005-01-27T17:54:20.000Z" } ], "analyses": { "keywords": [ "higher order corrections", "fokker-planck equation", "small parameter m/m", "van kampen method", "ideal gas molecules" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }