Photon-number distribution of two-mode squeezed thermal states by entangled state representation  

作　　者：胡利云 王帅 张智明 

机构地区：[1]College of Physics&Communication Electronics,Jiangxi Normal University [2]Laboratory of Nanophotonic Functional Materials and Devices,SIPSE&LQIT,South China Normal University [3]Department of Physics,Shanghai Jiao Tong University

出　　处：《Chinese Physics B》2012年第6期223-226,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 11047133, 60978009, and 10774088);the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91121023);the "973" Project (Grant No. 2011CBA00200);the Natural Science Foundation of Jiangxi Province of China (No. 2010GQW0027);the Sponsored Program for Cultivating Youths of Outstanding Ability in Jiangxi Normal University

摘　　要：Using the entangled state representation, we convert a two-mode squeezed number state to a Hermite polynomial excited squeezed vacuum state. We first analytically derive the photon number distribution of the two-mode squeezed thermal states. It is found that it is a Jacobi polynomial; a remarkable result. This result can be directly applied to obtaining the photon number distribution of non-Gaussian states generated by subtracting from （adding to） two-mode squeezed thermal states.Using the entangled state representation, we convert a two-mode squeezed number state to a Hermite polynomial excited squeezed vacuum state. We first analytically derive the photon number distribution of the two-mode squeezed thermal states. It is found that it is a Jacobi polynomial; a remarkable result. This result can be directly applied to obtaining the photon number distribution of non-Gaussian states generated by subtracting from （adding to） two-mode squeezed thermal states.

关 键 词：entangled state representation Hermite polynomial excited state squeezed thermalstates photon-number distribution 

分 类 号：O431.2[机械工程—光学工程]