Memory-effect-induced macroscopic-microscopic entanglement

作者：Mu, Qingxia^*; Zhao, Xinyu^*; Yu, Ting^*

来源：Physical Review A, 2016, 94(1): 012334.

DOI：10.1103/PhysRevA.94.012334

• QUANTUM-STATE DIFFUSION
• CONTINUOUS VARIABLE SYSTEMS
• BROWNIAN-MOTION
• CAVITY
• DYNAMICS
• OPTOMECHANICS
• TRAJECTORIES
• DECOHERENCE
• ENVIRONMENT
• TRANSITION

We study optomechanical entanglement between an optical cavity field and a movable mirror coupled to a non-Markovian environment. The non-Markovian quantum-state diffusion approach and the non-Markovian master equation are shown to be useful in investigating entanglement generation between the cavity field and the movable mirror. The simple model presented in this paper demonstrates several interesting properties of optomechanical entanglement that are associated with environment memory effects. It is evident that the effective environment central frequency can be used to modulate the optomechanical entanglement. In addition, we show that the maximum entanglement may be achieved by properly choosing the effective detuning, which is significantly dependent on the strength of the memory effect of the environment.

• 出版日期2016-7-19
• 单位华北电力大学; 北京计算科学研究中心