f-Deformed Squeezed Vacuum and First Excited States, Their Superposition and Corresponding Nonclassical Properties

查看全文 作　　者：[1]A.NoormandiPour;[1,2,3]M.K.Tavassoly 机构地区：[1]Atomic and Molecular Group,Faculty of Physics,Yazd University;[2]Photonic Research Group,Engineering Research Center,Yazd University;[3]The Laboratory of Quantum Information Processing,Yazd University 出　　处：《Communications in Theoretical Physics》索引2014年第61卷第4期,共10页 摘　　要：In this paper, we introduce two new classes of nonlinear squeezed states that we name as f-deformed squeezed vacuum state|ξ, f even and f-deformed squeezed first excited state |ξ, f odd, which according to their production processes, essentially include only even and odd bases of Fock space, respectively. In the continuation, we introduce the superposition of these two distinct nonlinear squeezed states with a respective phase ?. Then, some of the criteria which imply the nonclassicality of the states, such as Mandel parameter, second-order correlation function, quadrature squeezing, amplitude-squared squeezing, Husimi and Wigner–Weyl quasi-distribution functions, are numerically examined. At last, by considering a well-known nonlinearity function associated with a nonlinear physical system, we present our results which outcome from the numerical calculations. It is shown that, the introduced f-deformed states can reveal high nonclassical features. 关 键 词：变形状态 第一激发态 非经典特性 压缩真空态 叠加 非线性函数 Mandel参数 二阶关联函数