PHOTON-NUMBER, DISTRIBUTION AND WIGNER FUNCTION OF GENERALIZED PHOTON-MODULATED COHERENT STATE

被引：2
|
作者：
Zhou, Jun [1 ,2 ]
Wang, Shuai [3 ]
Song, Jun [1 ,2 ]
Fan, Hong-Yi [2 ,3 ]
机构：
[1] W Anhui Univ, Dept Mat & Chem Engn, Luan 237012, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China
来源：
MODERN PHYSICS LETTERS A | 2012年 / 27卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Non-Gaussian states; Hermite polynomials; photon-number distribution; Wigner function;
D O I：
10.1142/S0217732312500137
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we present the generalized photon-modulated coherent state (GPMCS) generated by repeatedly operating the combination of Bosonic creation and annihilation operators on the coherent state. It is found that the GPMCS is a Hermite-excited coherent state and its normalization factor is related to single-variable Hermite polynomials. Furthermore, some significant quantum statistical properties of the GPMCS are investigated, such as photon-number distribution (PND) and the Wigner function (WF). We find that the WF of the GPMCS has negative values when the generalized photon-modulation exists, which implies the nonclassical properties of the GPMCS.
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页数：11
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