Two-Mode Excited Squeezed Vacuum State and Its Properties
Two-Mode Excited Squeezed Vacuum State and Its Properties
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DOI：
10.1088/0253-6102/49/5/47
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发表时间：
2008-05
影响因子：
3.1
通讯作者：
Meng Xiang-guo;Wang Ji-suo;Liang Bao-long
中科院分区：
文献类型：
--
作者：
Meng Xiang-guo;Wang Ji-suo;Liang Bao-long
本文用统计方法研究了双模激发压缩真空态。通过对TESVS的归一化计算，得到了雅可比多项式的一种新形式和一些新的恒等式。给出了TESVS的光子数分布，它是雅可比多项式的一种简单形式。利用Wigner算符的纠缠态表示，得到了TESVS的Wigner函数，并讨论了Wigner函数随参数m、n和r的变化。这里，从相空间的观点来看，TESVS可以很好地解释和描述。
In this paper, the two-mode excited squeezed vacuum state (TESVS) is studied by using the statistical method. By calculating the normalization of the TESVS, a new form of Jacobi polynomials and some new identities are obtained. The photon number distribution of the TESVS is given and it is a simple form of Jacobi polynomials. Using the entangled state representation of Wigner operator, the Wigner function of the TESVS is obtainded and the variations of the Wigner function with the parameters m, n, and r are discussed. Here from the phase space point of view the TESVS can be well interpreted and described.