Energy spread and current-current correlation in quantum systems
Statistical Mechanics
2015-06-22 v1 Mesoscale and Nanoscale Physics
Abstract
We consider energy (heat) transport in quantum systems, and establish a relationship between energy spread and energy current-current correlation function. The energy current-current correlation is related to thermal conductivity by the Green-Kubo formula, and thus this relationship allows us to study conductivity directly from the energy spread process. As an example, we investigate a spinless fermion model; the numerical results confirm the relationship.
Keywords
Cite
@article{arxiv.1407.7197,
title = {Energy spread and current-current correlation in quantum systems},
author = {Yonghong Yan and Feng Jiang and Hui Zhao},
journal= {arXiv preprint arXiv:1407.7197},
year = {2015}
}
Comments
5 pages, 2 figures