环形腔中的三体宏观纠缠

The Three-Body Macro Entanglement in Annular Chamber

提出一个由固定镜子和两个可动镜子组成的环形腔光力耦合系统,研究了腔场与两个可动镜子以及两个可动镜子之间的纠缠情况.利用数值计算方法,把每个子系统的纠缠进行量化,讨论了振子频率和环境温度等参数对三体纠缠的影响.结果表明,在辐射压力作用下系统可以产生稳态的三体连续变量纠缠,三体宏观纠缠存在的环境温度可以达到0.005K.

An annular light and force coupling system which was composed of one fixed mirror and two movable mirrors was put forward. The entangled case between the annular chamber and two movable mirrors and the case between two movable mirrors were studied through this system. And the entangled case of every subsystem was quantified using numerical methods. Entangled cases of three bodies influenced by parameters,such as oscillator frequency and environment temperature were discussed. The results showed that the system can generate steady three-body continuous variable entanglement under the action of radiation pressure. And the existence environment temperature of three-body macro entanglement can be up to 0. 005 K.