Detecting macroscopic quantum coherence with a cavity optomechanical system
Quantum Physics
2016-12-21 v1
Abstract
The rigorous resource framework of quantum coherence has been set up recently and excited a wide variety of interests. Here we show that a quantum cavity optomechanical system, as an emerging platform, can behave with a certain value of quantum coherence at a macroscopic scale. We also find that the difference between the total optomechanical coherence and the sum of the optical and the mechanical coherence just equals their mutual information. Motivated by the detection of the optomechanical entanglement, an experimentally feasible scheme to probe the optomechanical coherence is proposed.
Cite
@article{arxiv.1610.06260,
title = {Detecting macroscopic quantum coherence with a cavity optomechanical system},
author = {Qiang Zheng and Jianwei Xu and Yao Yao and Yong Li},
journal= {arXiv preprint arXiv:1610.06260},
year = {2016}
}
Comments
8 pages, 9 figures. Accepted for publication in PRA