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

被引：8
|
作者：
Hu Li-Yun [1 ,2 ,3 ]
Wang Shuai [4 ]
Zhang Zhi-Ming [2 ,3 ]
机构：
[1] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330022, Peoples R China
[2] S China Normal Univ, Lab Nanophoton Funct Mat & Devices, SIPSE, Guangzhou 510006, Guangdong, Peoples R China
[3] S China Normal Univ, LQIT, Guangzhou 510006, Guangdong, Peoples R China
[4] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China
来源：
CHINESE PHYSICS B | 2012年 / 21卷 / 06期
基金：
中国国家自然科学基金;
关键词：
entangled state representation; Hermite polynomial excited state; squeezed thermal states; photon-number distribution; HERMITE-POLYNOMIAL EXCITATION;
D O I：
10.1088/1674-1056/21/6/064207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
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 thermals states.
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页数：4
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