{ "id": "1312.1274", "version": "v1", "published": "2013-12-04T18:38:32.000Z", "updated": "2013-12-04T18:38:32.000Z", "title": "Weakly driven anomalous diffusion in non-ergodic regime: an analytical solution", "authors": [ "Mauro Bologna", "Gerardo Aquino" ], "comment": "7 pages, 4 figures", "journal": "Eur. Phys. J. B (2014) 87: 15", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "We derive the probability density of a diffusion process generated by nonergodic velocity fluctuations in presence of a weak potential, using the Liouville equation approach. The velocity of the diffusing particle undergoes dichotomic fluctuations with a given distribution $\\psi(\\tau)$ of residence times in each velocity state. We obtain analytical solutions for the diffusion process in a generic external potential and for a generic statistics of residence times, including the non-ergodic regime in which the mean residence time diverges. We show that these analytical solutions are in agreement with numerical simulations.", "revisions": [ { "version": "v1", "updated": "2013-12-04T18:38:32.000Z" } ], "analyses": { "keywords": [ "weakly driven anomalous diffusion", "analytical solution", "non-ergodic regime", "diffusing particle undergoes dichotomic fluctuations", "diffusion process" ], "tags": [ "journal article" ], "publication": { "doi": "10.1140/epjb/e2013-40701-3", "journal": "European Physical Journal B", "year": 2014, "month": "Jan", "volume": 87, "number": 1, "pages": 15 }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014EPJB...87...15B" } } }