Quantum mechanical photoncount formula derived by entangled state representation

查看全文 作　　者：[1]胡利云;[1]王资生;[2]L.C.Kwek;[3]范洪义

机构地区：[1]College of Physics and Communication Electronics,Jiangxi Normal University;[2]Centre for Quantum Technologies,National University of Singapore;[3]Department of Physics,Shanghai Jiao Tong University

出　　处：《Chinese Physics B》索引2011年第20卷第8期,共6页

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos.11047133 and 60967002);the Key Program Foundation of Ministry of Education of China (Grant No.210115);the Research Foundation of the Education Department of Jiangxi Province of China (Grant Nos.GJJ10097 and GJJ10404);the Natural Science Foundation of Jiangxi Province of China (Grant No.2010GQW0027) 摘　　要：By introducing the thermo entangled state representation,we derive four new photocount distribution formulas for a given light field density operator.It is shown that these new formulas,which are convenient to calculate the photocount,can be expressed as integrations over a Laguerre-Gaussian function with a characteristic function,Wigner function,Q-function and P-function,respectively. 关键词：分布公式量子纠缠态 WIGNER函数机械特征函数热纠缠态密度算符功能集成

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Quantum mechanical photoncount formula derived by entangled state representation

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