In [3], the low temperature ratchet current in a multilevel system is considered. In this note, we give an explicit expression for it and find its numerical value as the number of states goes to infinity.
Cite
@article{arxiv.1508.01189,
title = {Low temperature ratchet current},
author = {Justine Louis},
journal= {arXiv preprint arXiv:1508.01189},
year = {2019}
}