Underdamped quantum ratchets
Other Condensed Matter
2009-02-25 v3 Chaotic Dynamics
Quantum Physics
Abstract
We investigate the quantum ratchet effect under the influence of weak dissipation which we treat within a Floquet-Markov master equation approach. A ratchet current emerges when all relevant symmetries are violated. Using time-reversal symmetric driving we predict a purely dissipation-induced quantum ratchet current. This directed quantum transport results from bath-induced superpositions of non-transporting Floquet states.
Cite
@article{arxiv.0807.0196,
title = {Underdamped quantum ratchets},
author = {S. Denisov and S. Kohler and P. Hanggi},
journal= {arXiv preprint arXiv:0807.0196},
year = {2009}
}
Comments
EPL 85, 40003 (2009)