title: Rate description of Fokker-Planck processes with time-dependent parameters.
abstract: The reduction of a continuous Markov process with multiple metastable states to a discrete rate process is investigated in the presence of slow time-dependent parameters such as periodic external forces or slowly fluctuating barrier heights. A quantitative criterion is provided under which condition a kinetic description with time-dependent frozen rates applies and nonadiabatic corrections to the frozen rates are obtained. Finally it is shown how the long-time behavior of the underlying continuous process can be retrieved from the knowledge of the discrete process by means of an appropriate random decoration of the discrete states. As a particular example of the presented theory an overdamped bistable Brownian oscillator with periodic driving is discussed.
authors.affiliation: Universität Augsburg, Institut für Physik, Universitätsstrasse 1, D-86135 Augsburg, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Talkner
authors.forename: Jerzy
authors.initials: J
authors.lastname: Łuczka