Preservation Macroscopic Entanglement of Optomechanical Systems in non-Markovian Environment.
Preservation Macroscopic Entanglement of Optomechanical Systems in non-Markovian Environment.
复制标题
非马尔可夫环境中光机系统宏观纠缠的保存
DOI：
10.1038/srep23678
复制
发表时间：
2016-04-01
影响因子：
4.6
通讯作者：
Zhang W
中科院分区：
文献类型：
--
作者：
Cheng J;Zhang WZ;Zhou L;Zhang W
我们研究非马尔可夫环境下光机械系统的动力学。在弱光机械单光子耦合机制中，我们提供了一种充分考虑非马尔可夫记忆效应的分析方法。当腔-浴耦合强度超过一定阈值时，就会形成经典腔场的振荡记忆状态。由于非衰变光学束缚态的存在，即使没有外部驱动激光器，也能保持非平衡光机械热纠缠。我们的结果提供了通过非马尔可夫环境生成和保护纠缠的潜在用途。
We investigate dynamics of an optomechanical system under the non-Markovian environment. In the weak optomechanical single-photon coupling regime, we provide an analytical approach fully taking into account the non-Markovian memory effects. When the cavity-bath coupling strength crosses a certain threshold, an oscillating memory state for the classical cavity field is formed. Due to the existence of the non-decay optical bound state, a nonequilibrium optomechanical thermal entanglement is preserved even without external driving laser. Our results provide a potential usage to generate and protect entanglement via non-Markovian environment.