Entanglement Involved in Pair Coherent State Studied via Wigner Function Formalism  

作　　者：HU Li-Yun FAN Hong-Yi 

机构地区：[1]College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China [2]Department of Physics, Shanghai Jiao Tong University, Shanghai 200030, China

出　　处：《Communications in Theoretical Physics》2009年第12期1071-1075,共5页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.10775097 and 10874174;the Research Foundation of the Education Department of Jiangxi Province

摘　　要：We calculate Wigner function, tomogram of the pair coherent state by using its Sehmidt decomposition in the coherent state representation. It turns out that the Wigner function can be seen as the quantum entanglement （QE） between two two-variable Hermite polynomials （TVHP） and the tomogram is further simplified as QE of two single-variable Hermite polynomials. The Husimi function of pair coherent state is also calculated.

关 键 词：pair coherent state Wigner function TOMOGRAM Husimi function 

分 类 号：O431[机械工程—光学工程] O413.1[理学—光学]