The entanglement of two moving atoms interacting with a single-mode field via a three-photon process  

作　　者：吴超 方卯发 

机构地区：[1]College of Physics and Information Science,Hunan Normal University

出　　处：《Chinese Physics B》2010年第2期67-72,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10374025);the Natural Science Foundation of Hunan Province (Grant Nos. 07JJ3013 and 07JJ5003);the Research Foundation of the Education Bureau of Hunan Province(Grant No. 06A038)

摘　　要：In this paper, the entanglement of two moving atoms induced by a single-mode field via a three-photon process is investigated. It is shown that the entanglement is dependent on the category of the field, the average photon number N, the number p of half-wave lengths of the field mode and the atomic initial state. Also, the sudden death and the sudden birth of the entanglement are detected in this model and the results show that the existence of the sudden death and the sudden birth depends on the parameter and the category of the mode field. In addition, the three-photon process is a higher order nonlinear process.In this paper, the entanglement of two moving atoms induced by a single-mode field via a three-photon process is investigated. It is shown that the entanglement is dependent on the category of the field, the average photon number N, the number p of half-wave lengths of the field mode and the atomic initial state. Also, the sudden death and the sudden birth of the entanglement are detected in this model and the results show that the existence of the sudden death and the sudden birth depends on the parameter and the category of the mode field. In addition, the three-photon process is a higher order nonlinear process.

关 键 词：induced entanglement three-photon process sudden death and sudden birth 

分 类 号：O431.2[机械工程—光学工程] TN929.11[理学—光学]