|Participating group members:||Mykhaylo Evstigneev, Peter Reimann|
|Main external cooperation partners:||Chris Van den Broeck, Ryoichi Kawai|
|Coupled Brownian particles in a symmetric potential, exhibiting a spontaneous symmetry breaking and a concomitant spontaneous ratchet effect (directed transport).|
A first experimental demonstration of these theoretical concepts
has been realized by means of
A further related project deals with collective,
stochastic resonance-like phenomena in colloidal systems.
P. Reimann, R. Kawai, C. Van den Broeck, and P. Hänggi
Coupled Brownian Motors: Anomalous Hysteresis and Zero-bias Negative Conductance
Europhys. Lett. 45, 545 (1999)
This work is illustrated by a movie (1.1 MB), of which the above figure is a snapshot.
C. Van den Broeck, P. Reimann, R. Kawai, and P. Hänggi
Coupled Brownian Motors
pp. 93-111 in "Statistical Mechanics and Biocomplexity", Lecture Notes in Physics, Vol. 527
edited by D. Reguera, J.M. Rubi, and J.M.G. Vilar, Springer, Berlin, 1999
P. Reimann, C. Van den Broeck, and R. Kawai
Nonequilibrium Noise in Coupled Phase Oscillators
Phys. Rev. E 60, 6402 (1999)
C. Van den Broeck, I. Bena, P. Reimann, and J. Lehmann
Coupled Brownian Motors on a Tilted Washboard
Ann. Phys. (Leipzig) 9, 713 (2000)
Last update on August 2, 2004.