原子间偶极相互作用对双光子T-C模型中纠缠度的影响  

Influence of the Dipole-Dipole Interaction between Atoms on the Entanglement of Tavis-Cummings Model with Two Photon Process

作　　者：刘燕勇[1,2] 谢芳森[1] 

机构地区：[1]江西师范大学物理与通信电子学院,江西南昌330022 [2]江西理工大学理学院,江西赣州341000

出　　处：《江西师范大学学报（自然科学版）》2009年第5期587-592,共6页Journal of Jiangxi Normal University(Natural Science Edition)

摘　　要：研究了原子-光场间的耦合常数ε和原子间偶极-偶极相互作用强度η对双光子T-C模型中各纠缠度的影响.当系统初态为|2,g1,g2〉时,光场和两个原子间的纠缠度是光场和其中任意一个原子间的纠缠度的两倍;当系统初态为γ|0,g1,e2〉+1-γ2|0,e1,g2〉时,若γ两次取值分别为γ1、γ2,在满足γ1+γ2=1条件下,其纠缠度满足原子间的交换对称性.The evolution of the entanglement in the T-C model was studied in condition of the dipole-dipole interaction between two atoms.The system will evolve into three-body w-entangled state,when the initial state of system is｜2,g1,g2〉 or γ｜0,g1,e2〉＋1-γ2｜0,e1,g2〉.The evolution of entanglement changes when the initial state ofthe system are different.

关 键 词：双光子T-C模型 W纠缠态 量子光学 量子纠缠 

分 类 号：O431.2[机械工程—光学工程]