We propose a scheme via three-level cascade atoms to entangle two optomechanical oscillators as well as two-mode fields. We show that two movable mirrors and two-mode fields can be entangled even for bad cavity limit. We also study entanglement of the output two-mode fields in frequency domain. The results show that the frequency of the mirror oscillation and the injected atomic coherence affect the output entanglement of the two-mode fields.
@article{arxiv.1105.4300,
title = {Entanglement of nanomechanical oscillators and two-mode fields induced by atomic coherence},
author = {Ling Zhou and Yan Han and Jietai Jing and Weigping Zhang},
journal= {arXiv preprint arXiv:1105.4300},
year = {2015}
}