双Tavis-Cummings模型中三体纠缠转移及量子极限速度的研究  

The Study on the Tripartite Entanglement Transfer and Quantum Speed Limit time in Double Tavis-Cummings Model

作　　者：李得东 陈晓杰[1] 熊小雨[1] 封玲娟[1] 张英杰[1,2] 

机构地区：[1]曲阜师范大学物理系,山东曲阜273165 [2]山东省激光偏光与信息技术重点实验室,曲阜师范大学物理系,山东曲阜273165

出　　处：《量子光学学报》2014年第4期282-288,共7页Journal of Quantum Optics

基　　金：国家自然科学基金(11304179;11247240);山东省自然科学基金项目资助课题(ZR2012FQ024);曲阜师范大学本科生科研训练计划项目(2013A032)

摘　　要：研究了耦合双Tavis-Cummings模型中三体纠缠态的演化和转移特性。结果表明,初始局域的三体W型纠缠态可以转移为另外局域的三体纠缠,在纠缠转移过程中,两光腔场的耦合参数起到了重要的作用。随着耦合参数的增加,三体纠缠的转移速度加快。并且初始三体纠缠在演化过程中不会完全被局域子体系间所俘获,还会转移到其他非局域子体系上。最后,我们还分析了腔场间耦合强度对初始三体量子态演化速度的影响。The tripartite entanglement evolution and transfer of the double Tavis-Cummings model were investigated. The results showed that the initial local tripartite entangled state （W-like state） can be transfered to another local tripartite entanglement. In the process of entanglement transfer, the coupling parameter of two light cavity fields played an important role. The tripartite entanglement transfer speeded up when this coupling parameter increased. The initial tripartite entanglement could not be fully captured by the local subsystems in the evolution process, and would subsystems. Finally, we also analyzed the effect of the couplin evolution speed of the initial tripartite entangled state. also be transferred to other non-local g strength between two cavitys on the

关 键 词：量子光学 TAVIS-CUMMINGS模型 量子纠缠 量子速度极限 

分 类 号：O431.2[机械工程—光学工程]