Noiseless limit of a ferrofluid ratchet
arXiv:cond-mat/0411060 · doi:10.1016/j.physa.2005.03.011
Abstract
The noiseless limit of a thermal ratchet device using ferrofluids is studied in detail. Contrary to previous claims it is proved that no directed transport can occur in this model in the absence of fluctuations.
10 pages, 2 figures