title: Fluctuation relations for a driven Brownian particle.
abstract: We consider a driven Brownian particle, subject to both conservative and nonconservative applied forces, whose probability evolves according to the Kramers equation. We derive a general fluctuation relation, expressing the ratio of the probability of a given Brownian path in phase space with that of the time-reversed path, in terms of the entropy flux to the heat reservoir. This fluctuation relation implies those of Seifert, Jarzynski, and Gallavotti-Cohen in different special cases.
authors.affiliation: Dipartimento di Scienze Fisiche, INFN-Sezione di Napoli, CNISM, Sezione di Napoli, Università Federico II, Complesso Monte S. Angelo, I-80126 Naples, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Imparato
authors.forename: L
authors.initials: L
authors.lastname: Peliti