当前位置: X-MOL 学术J. Phys. B: At. Mol. Opt. Phys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Efficient ground state cooling of a membrane by the combination of continuous-wave field and pulses
Journal of Physics B: Atomic, Molecular and Optical Physics ( IF 1.6 ) Pub Date : 2021-05-12 , DOI: 10.1088/1361-6455/abf6b3
Zhi Xin Chen 1 , Bing He 2 , Qing Lin 1
Affiliation  

We present an approach that realizes the ground state cooling of the membrane-in-middle optomechanical system. Instead of straightforwardly using the continuous-wave (CW) or pulsed external drives, we consider the combinations of them for having a more efficient cooling process. Due to the dynamical nature of the joint action of both CW and pulse fields, it is necessary to explore the real-time evolutions of the system under various conditions, from which the optimal cooling can be found. Given such setup, the cooling limit previously discovered for the simple optomechanical systems under a single CW drive can be easily broken. The achieved cooling effect indicated by a defined cooling rate is one or more order lower than the cooling limit of a simple optomechanical systems, thus providing an efficient way of ground state cooling. Furthermore, the ground state cooling can be realized for a membrane with much lower mechanical quality factor and with the external drives of the lower intensities, to considerably relax the requirements for optomechanical cooling with the current experimental technology.



中文翻译:

通过连续波场和脉冲的组合对膜进行有效的基态冷却

我们提出了一种实现中间膜光机械系统基态冷却的方法。我们没有直接使用连续波 (CW) 或脉冲外部驱动器,而是考虑将它们组合在一起以获得更有效的冷却过程。由于连续波和脉冲场共同作用的动力学性质,有必要探索系统在各种条件下的实时演变,从中可以找到最佳冷却。鉴于这样的设置,先前发现的单个 CW 驱动器下的简单光机械系统的冷却限制很容易被打破。由定义的冷却速率表示的达到的冷却效果比简单的光机械系统的冷却极限低一个或多个数量级,从而提供了一种有效的基态冷却方式。此外,

更新日期:2021-05-12
down
wechat
bug