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http://hdl.handle.net/1942/2948
Title: | Coupled Brownian motors on a tilted washboard | Authors: | VAN DEN BROECK, Christian BENA, Ioana REIMANN, Peter Lehmann, J |
Issue Date: | 2000 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | ANNALEN DER PHYSIK, 9(9-10). p. 713-720 | Abstract: | We consider globally coupled particles, each of them governed by a deterministic relaxation dynamics in a critically tilted washboard potential, but without a preferential spatial direction for the coupled system as a whole. For weak-to-moderate coupling we observe a spontaneous breaking of the system intrinsic symmetry which entails a spontaneous collective transport via a ratchet effect, possibly with a superimposed oscillatory long time behavior. For strong coupling, spontaneous symmetry breaking and spontaneous directed current are ruled out, whereas a negative mobility in response to an externally applied force is recovered. | Notes: | Limburgs Univ Ctr, B-3590 Diepenbeek, Belgium. Univ Augsburg, D-86135 Augsburg, Germany.Van den Broeck, C, Limburgs Univ Ctr, Univ Campus, B-3590 Diepenbeek, Belgium. | Keywords: | nonequilibrium phase transition; spontaneous current; negative mobility | Document URI: | http://hdl.handle.net/1942/2948 | ISI #: | 000089819600008 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2001 |
Appears in Collections: | Research publications |
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