title: Directed transport in periodically rocked random sawtooth potentials.
abstract: We study directed transport of overdamped particles in a periodically rocked random sawtooth potential. Two transport regimes can be identified which are characterized by a nonzero value of the average velocity of particles and a zero value, respectively. The properties of directed transport in these regimes are investigated both analytically and numerically in terms of a random sawtooth potential and a periodically varying driving force. Precise conditions for the occurrence of transition between these two transport regimes are derived and analyzed in detail.
authors.affiliation: Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, D-01187 Dresden, Germany. stdenis@pks.mpg.de
authors.forename: S I
authors.initials: SI
authors.lastname: Denisov
authors.forename: T V
authors.initials: TV
authors.lastname: Lyutyy
authors.forename: E S
authors.initials: ES
authors.lastname: Denisova
authors.forename: P
authors.initials: P
authors.lastname: Hänggi
authors.forename: H
authors.initials: H
authors.lastname: Kantz