Heat pumping with optically driven excitons
Quantum Physics
2010-08-11 v2
Abstract
We present a theoretical study showing that an optically driven excitonic two-level system in a solid state environment acts as a heat pump by means of repeated phonon emission or absorption events. We derive a master equation for the combined phonon bath and two-level system dynamics and analyze the direction and rate of energy transfer as a function of the externally accessible driving parameters. We discover that if the driving laser is detuned from the exciton transition, cooling the phonon environment becomes possible.
Cite
@article{arxiv.1001.4446,
title = {Heat pumping with optically driven excitons},
author = {Erik M. Gauger and Joachim Wabnig},
journal= {arXiv preprint arXiv:1001.4446},
year = {2010}
}