Time evolution of Wigner function in laser process derived by entangled state representation

被引：54

作者：

Hu, Li-yun ^{[1
,2
]}

Fan, Hong-yi ^{[2
]}

机构：

[1] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330022, Peoples R China

[2] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 22期

基金：

中国国家自然科学基金;

关键词：

QUANTUM-MECHANICS; DENSITY OPERATORS; FIELD-DYNAMICS; COHERENT-STATE; POLYNOMIALS; INTEGRATION; HERMITE; CHANNEL;

D O I：

10.1016/j.optcom.2009.08.004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Evaluating the Wigner function of quantum states in the entangled state representation is introduced, based on which we present a new approach for deriving time evolution formula of Wigner function in laser process. Application of this formula to photon number measurement in laser process is also presented, as an example, the case when the initial state is a photon-added coherent state is discussed. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：4379 / 4383

页数：5

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