Optimal rectification by strongly coupled spins
Quantum Physics
2014-06-06 v2 Mesoscale and Nanoscale Physics
Statistical Mechanics
Abstract
We study heat transport in a pair of strongly coupled spins. In particular, we present a condition for optimal rectification, i.e., flow of heat in one direction and complete isolation in the opposite direction. We show that the strong-coupling formalism is necessary for correctly describing heat flow in a wide range of parameters, including moderate to low couplings. We present a situation in which the strong-coupling formalism predicts optimal rectification whereas the phenomenological approach predicts no heat flow in any direction, for the same parameter values.
Keywords
Cite
@article{arxiv.1404.0348,
title = {Optimal rectification by strongly coupled spins},
author = {T. Werlang and M. A. Marchiori and M. F. Cornelio and D. Valente},
journal= {arXiv preprint arXiv:1404.0348},
year = {2014}
}
Comments
6 pages, 3 figures