SU(1,1)相干态与玻色-爱因斯坦凝聚相互作用系统中的量子纠缠(英文)  

Quantum entanglement in system of SU(1, 1) coherent state interacting with Bose-Einstein condensates

作　　者：赵建刚[1] 孙长勇[1] 周玉欣[1] 闫丽华[1] 

机构地区：[1]聊城大学物理科学与信息工程学院,聊城252059

出　　处：《原子与分子物理学报》2009年第1期125-130,共6页Journal of Atomic and Molecular Physics

基　　金：山东省自然科学基金(Q2007A01)

摘　　要：研究的系统为SU(1,1)相干态和玻色-爱因斯坦凝聚体相互作用体系,在双光子跃迁过程中,分别用量子约化熵和量子相对熵研究了该系统中的SU(1,1)相干态与凝聚体间的纠缠以及SU(1,1)相干态的模间纠缠,分析了光场初始压缩因子、原子间相互作用对场-凝聚体间纠缠和模间纠缠的影响.We investigate the system of Bose-Einstein condensates interacting with SU(1, 1) coherent state in two-photon transition process, the entanglement of atom-field and the entanglement between the two-mode light field using the quantum reduced entropy and quantum relative entropy are studied, respectively . The influences of the coherent parameter of light field, two-mode photon number difference and interaction between atoms on the evolution of the entanglement of atom-field and the entanglement between the two-mode light field have been discussed.

关 键 词：玻色-爱因斯坦凝聚 SU(1 1)相干态 量子纠缠 量子约化熵 量子相对熵 

分 类 号：O431.2[机械工程—光学工程]