所属单位：

理学院

发表刊物：

光子学报

关键字：

中文关键字：叠加态；相位分布；Wigner函数；混合态；量子效应，英文关键字：Superposition state; Phase distribution; Wigner fu

摘要：

he quantum statistical properties of the superposition state, which involve two arbitrary coherent states and , are investigated from two aspects, such as the phase distribution and Winger function. The results show that the non-classical properties of the superposition state depend on , amplitude coefficient , the phase difference between the coherent states , and the phase difference between the superposition coefficients . When selected suitable parameters the superposition state exhibits quantum effect. The phase distribution and Wigner function of an equally populated mixture of two coherent states are derived, too. By comparison the results show that the presence of the coherence terms makes the superposition state with full quantum-mechanical behavior.

备注：

张爱萍

第一作者：

魏诺,史毅敏,张爱萍

论文类型：

期刊论文

卷号：

卷：

期号：

期：

页面范围：

页：

是否译文：

否

发表时间：

2010-04-01