Coupled Brownian motors: Anomalous hysteresis and zero-bias negative conductance

Authors
Reimann, P Kawai, R Van den Broeck, C Hanggi, P
Citation
P. Reimann et al., Coupled Brownian motors: Anomalous hysteresis and zero-bias negative conductance, EUROPH LETT, 45(5), 1999, pp. 545-551
Citations number
33
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
45
Issue
5
Year of publication
1999
Pages
545 - 551
Database
ISI
SICI code
0295-5075(19990301)45:5<545:CBMAHA>2.0.ZU;2-Q
Abstract
We introduce a model of interacting Brownian particles in a symmetric, peri odic potential that undergoes a noise-induced non-equilibrium phase transit ion. The associated spontaneous symmetry breaking entails a ratchet-like tr ansport mechanism. In response to an external force we identify several nov el features; among the most prominent being a aero-bias negative conductanc e and a prima facie counterintuitive, anomalous hysteresis.