Suppressing laser phase noise in an optomechanical system |
| |
Authors: | Yexiong Zeng Biao Xiong Chong Li |
| |
Affiliation: | 1. School of Physics, Dalian University of Technology, Dalian 116024, China2. College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002, China |
| |
Abstract: | We propose a scheme to suppress the laser phase noise without increasing the optomechanical singlephoton coupling strength. In the scheme, the parametric amplification terms, created by Kerr and Duffing nonlinearities, can restrain laser phase noise and strengthen the effective optomechanical coupling, respectively. Interestingly, decreasing laser phase noise leads to increasing thermal noise, which is inhibited by bringing in a broadband-squeezed vacuum environment. To reflect the superiority of the scheme, we simulate quantum memory and stationary optomechanical entanglement as examples, and the corresponding numerical results demonstrate that the laser phase noise is extremely suppressed. Our method can pave the way for studying other quantum phenomena. |
| |
Keywords: | optomechanical system quantum entanglement quantum memory |
本文献已被 维普 等数据库收录! |
| 点击此处可从《Frontiers of Physics》浏览原始摘要信息 |
|
点击此处可从《Frontiers of Physics》下载全文 |
|