Enhancing stationary optomechanical entanglement with the Kerr medium  

作　　者：张丹 张小平 郑强 

机构地区：[1]School of Chemistry and Material Science,Guizhou Normal University [2]Space Science Institute,Macao University of Science and Technology [3]School of Mathematics and Computer Science,Guizhou Normal University

出　　处：《Chinese Physics B》2013年第6期380-384,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 11065005 and 11105079);the Governor’s Foundation for Science and Education Elites of Guizhou Province;Creative Talent Programme in University of Guizhou Province,China;the Internationally Scientific and Technological Cooperation Projects of Guizhou Province,China (Grant No. [2011]7026)

摘　　要：We theoretically investigate the stationary entanglement of a optomechanical system with an additional Kerr medium in the cavity. There are two kinds of interactions in the system, photon-mirror interaction and photon-photon interaction. The optomechanical entanglement created by the former interaction can be effectively controlled by the latter one. We find that the optomechanical entanglement is suppressed by Kerr interaction due to photon blockage. We also find that the Kerr interaction can create the stationary entanglement and induce the resonance of entanglement in the small detuning regime. These results show that the Kerr interaction is an effective control for the optomechanical system.We theoretically investigate the stationary entanglement of a optomechanical system with an additional Kerr medium in the cavity. There are two kinds of interactions in the system, photon-mirror interaction and photon-photon interaction. The optomechanical entanglement created by the former interaction can be effectively controlled by the latter one. We find that the optomechanical entanglement is suppressed by Kerr interaction due to photon blockage. We also find that the Kerr interaction can create the stationary entanglement and induce the resonance of entanglement in the small detuning regime. These results show that the Kerr interaction is an effective control for the optomechanical system.

关 键 词：OPTOMECHANICS Kerr medium ENTANGLEMENT 

分 类 号：O431.2[机械工程—光学工程]