Entanglement of movable mirror and cavity field enhanced by an optical parametric amplifier  

作　　者：张彩云 李虎 潘桂侠 圣宗强 

机构地区：[1]Anhui University of Science and Technology, Huainan 232001, China

出　　处：《Chinese Physics B》2016年第7期225-228,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.11247001);the Scientific Research Foundation of the Higher Education Institutions of Anhui Province,China(Grant No.KJ2012A083);the Doctor(Master)Fund of Anhui University of Science and Technology,China

摘　　要：A scheme to generate entanglement in a cavity optomechanical system filled with an optical parametric amplifier is proposed. With the help of the optical parametric amplifier, the stationary macroscopic entanglement between the movable mirror and the cavity field can be notably enhanced, and the entanglement increases when the parametric gain increases.Moreover, for a given parametric gain, the degree of entanglement of the cavity optomechanical system increases with increasing input laser power.A scheme to generate entanglement in a cavity optomechanical system filled with an optical parametric amplifier is proposed. With the help of the optical parametric amplifier, the stationary macroscopic entanglement between the movable mirror and the cavity field can be notably enhanced, and the entanglement increases when the parametric gain increases.Moreover, for a given parametric gain, the degree of entanglement of the cavity optomechanical system increases with increasing input laser power.

关 键 词：optomechanical system optical parametric amplifier stationary macroscopic entanglement 

分 类 号：TN722[电子电信—电路与系统]