Quantum limits on the time-bandwidth product of an optical resonator
Abstract
A thought-provoking proposal by Tsakmakidis et al. [Science 356, 1260 (2017)] suggests that nonreciprocal optics can break a time-bandwidth limit to passive resonators. Here I quantize their resonator model and show that quantum mechanics does impose a limit, or requires extra noise to be added in the same fashion as amplified spontaneous emission in an active resonator. I also use thermodynamics to argue that extra dissipation or noise must be present in their proposed device.
Keywords
Cite
@article{arxiv.1709.10073,
title = {Quantum limits on the time-bandwidth product of an optical resonator},
author = {Mankei Tsang},
journal= {arXiv preprint arXiv:1709.10073},
year = {2017}
}
Comments
4 pages, 3 figures. v2: expanded and submitted; v3: updated and published. Copyright 2018 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited