Symmetries of the ratchet current
Statistical Mechanics
2015-05-14 v2
Abstract
Recent advances in nonequilibrium statistical mechanics shed new light on the ratchet effect. The ratchet motion can thus be understood in terms of symmetry (breaking) considerations. We introduce an additional symmetry operation besides time-reversal, that effectively reverses the nonequilibrium driving. That operation of field-reversal combined with time-reversal decomposes the nonequilibrium action so to clarify under what circumstances the ratchet current is a second order effect around equilibrium, what is the direction of the ratchet current and what are possibly the symmetries in its fluctuations.
Keywords
Cite
@article{arxiv.cond-mat/0610369,
title = {Symmetries of the ratchet current},
author = {Wojciech De Roeck and Christian Maes},
journal= {arXiv preprint arXiv:cond-mat/0610369},
year = {2015}
}
Comments
13 pages, heavily extended version