Phonon-Assisted Gain in a Semiconductor Double Quantum Dot Maser
Mesoscale and Nanoscale Physics
2015-06-29 v3 Quantum Physics
Abstract
We develop a microscopic model for the recently demonstrated double quantum dot (DQD) maser. In characterizing the gain of this device we find that, in addition to the direct stimulated emission of photons, there is a large contribution from the simultaneous emission of a photon and a phonon, i.e., the phonon sideband. We show that this phonon-assisted gain typically dominates the overall gain which leads to masing. Recent experimental data are well fit with our model.
Cite
@article{arxiv.1501.03499,
title = {Phonon-Assisted Gain in a Semiconductor Double Quantum Dot Maser},
author = {M. J. Gullans and Y. -Y. Liu and J. Stehlik and J. R. Petta and J. M. Taylor},
journal= {arXiv preprint arXiv:1501.03499},
year = {2015}
}
Comments
v1: 6 pgs, 2 figures; v2: 6 pgs, 3 figures, added Fig 2b and Fig. 3b, modified main text; v3: 6+ pgs, 3 figures, modified main text