Tripartite entanglement properties in the system of atoms interacting with three coupled cavities  

作　　者：卢道明 邱昌东 

机构地区：[1]Department of Electronic Engineering, Wuyi University

出　　处：《Optoelectronics Letters》2013年第2期157-160,共4页光电子快报（英文版）

基　　金：supported by the Natural Science Foundation of Fujian Province (No.2011J01018);the Department of Education of Fujian Province (No.JA12327)

摘　　要：It is considered that three identical two-level atoms are separately trapped in three coupled single-mode optical cavities, and each atom resonantly interacts with cavity via a one-photon transition. The tripartite entanglement dynamics among atoms is studied. The influence of cavity-cavity coupling constant on the tripartite entanglement among atoms is discussed. The results obtained using the numerical method show that the tripartite entanglement among atoms has a nonlinear relation with the cavity-cavity coupling coefficient. On the other hand, the three-body entanglement is the result of the coherent superposition of the two-body entanglements.It is considered that three identical two-level atoms are separately trapped in three coupled single-mode optical cavities, and each atom resonantly interacts with cavity via a one-photon transition. The tripartite entanglement dynamics among atoms is studied. The influence of cavity-cavity coupling constant on the tripartite entanglement among atoms is discussed. The results obtained using the numerical method show that the tripartite entanglement among atoms has a nonlinear relation with the cavity-cavity coupling coefficient. On the other hand, the three-body entanglement is the result of the coherent superposition of the two-body entanglements.

关 键 词：原子相互作用 纠缠特性 耦合腔 系统 纠缠原子 二能级原子 单光子跃迁 非线性关系 

分 类 号：O431.2[机械工程—光学工程]