Superposition of two coherent states π out of phase with average photon number as relative phase

被引：14
作者：
Ahmad, Muhammad Ashfaq [1 ,2 ]
Liu, Shu-Tian [2 ]
机构：
[1] COMSATS Inst Informat Technol, Dept Phys, Lahore 54000, Pakistan
[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
来源：
OPTIK | 2009年 / 120卷 / 02期
关键词：
Nonclassical states of light; Superposition of coherent states; Photon statistics; Squeezing properties; NONCLASSICAL STATE; ENTANGLED STATES; WIGNER FUNCTION; DECOHERENCE; FIELD;
D O I：
10.1016/j.ijleo.2007.02.012
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper discusses nonclassical features of the superposition of two coherent states pi out of phase with each other and parameterized solely by amplitude alpha, that is, when the relative phase has a relationship with average photon number vertical bar alpha vertical bar(2). In particular, it discusses oscillatory and sub-Poissonian photon statistics, degree of quadrature squeezing, and quasiprobability distribution functions. We examine that some nonclassical properties of these states are different from those of the even and odd coherent states. (C) 2007 Elsevier GmbH. All rights reserved.
引用
收藏
页码：68 / 73
页数：6
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