Wang Dong-Yang, Bai Cheng-Hua, Wang Hong-Fu, Zhu Ai-Dong, Zhang Shou
Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002, China.
School of Physics, Northeast Normal University, Changchun, Jilin 130024, China.
Sci Rep. 2016 Apr 19;6:24421. doi: 10.1038/srep24421.
Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces. Here we give a theoretical study of a hybrid atom-optomechanical system in which the steady-state squeezing of the mechanical resonator can be generated via the mechanical nonlinearity and cavity cooling process. The validity of the scheme is assessed by simulating the steady-state variance of the mechanical displacement quadrature numerically. The scheme is robust against dissipation of the optical cavity, and the steady-state squeezing can be effectively generated in a highly dissipative cavity.
机械谐振器的量子压缩对于研究宏观量子效应和弱力的精密计量至关重要。在此，我们对一个混合原子-光机械系统进行了理论研究，在该系统中，可通过机械非线性和腔冷却过程产生机械谐振器的稳态压缩。通过数值模拟机械位移正交分量的稳态方差来评估该方案的有效性。该方案对光学腔的耗散具有鲁棒性，并且可以在高耗散腔中有效地产生稳态压缩。
