Ground state cooling of massive mechanical objects remains a difficult task restricted by the unresolved mechanical sidebands. We propose an optomechanically-induced-transparency cooling scheme to achieve ground state cooling of mechanical motion without the resolved sideband condition in a pure optomechanical system with two mechanical modes coupled to the same optical cavity mode. We show that ground state cooling is achievable for sideband resolution ωm/κ as low as 0.003. This provides a new route for quantum manipulation of massive macroscopic devices and high-precision measurements.
@article{arxiv.1504.04497,
title = {Optomechanically-induced-transparency cooling of massive mechanical resonators to the quantum ground state},
author = {Yong-Chun Liu and Yun-Feng Xiao and Xingsheng Luan and Chee Wei Wong},
journal= {arXiv preprint arXiv:1504.04497},
year = {2015}
}