J4 ›› 2010, Vol. 27 ›› Issue (2): 193-197.

• 量子光学 • 上一篇    下一篇

叠加激发相干态的Wigner函数

江俊勤   

  1. 广东教育学院物理系,广东 广州 510303
  • 出版日期:2010-03-28 发布日期:2010-03-05
  • 通讯作者: 江俊勤 (1962- ),男,广东揭阳人,教授,主要研究领域是格点规范场论和量子光学, 已在国内外学术刊物上发表论文50多篇。 E-mail:jqjiang@gdei.edu.cn

Wigner function of superposition of the excited coherent state

JIANG Jun-Qin   

  1. Department of Physics, Guangdong Institute of Education, Guangzhou 510303, China
  • Published:2010-03-28 Online:2010-03-05

摘要:

构造了叠加激发相干态 , 用数值计算的方法研究了 和 对该量子态Wigner函数及其边缘分布的影响.结果表明:不论 为何值, 叠加激发相干态都能够呈现非经典性质, 而且Wigner函数及其边缘分布明显受到θ和m的调节。

关键词: 量子光学, 激发相干态, 叠加态, Wigner函数, 边缘分布

Abstract:

The superposition state from the excited coherent state was constructed. The and m dependences of the Wigner function and its marginal distributions for the superposition state were numerically investigated. It is shown that the superposition state is always able to exhibit the non-classical properties for any , Wigner function and its marginal distributions are evidently depend on θ and m.

Key words: quantum optics, excited coherent state, superposition state, Wigner function, marginal distribution