Ground-state cooling of multiple near-degenerate mechanical modes

分类： 光学 >> 量子光学 提交时间： 2023-02-19

Jin-Yu Liu Wenjing Liu Da Xu Jia-Chen Shi Qihuang Gong Yun-Feng Xiao

摘要： We propose a general and experimentally feasible approach to realize simultaneous ground-state cooling of arbitrary number of near-degenerate, or even fully degenerate mechanical modes, overcoming the limit imposed by the formation of mechanical dark modes. Multiple optical modes are employed to provide different dissipation channels that prevent complete destructive interference of the cooling pathway, and thus eliminating the dark modes. The cooling rate and limit are explicitly specified, in which the distinguishability of the optical modes to the mechanical modes is found to be critical for an efficient cooling process. In a realistic multi-mode optomechanical system, ground-state cooling of all mechanical modes is demonstrated by sequentially introducing optical drives, proving the feasibility and scalability of the proposed scheme. The work may provide new insights in preparing and manipulating multiple quantum states in macroscopic systems.

同行评议状态:待评议

 点击量 23  下载量 11  评论