光子数压缩态的位相特性

Phase properties of squeezed number states

用 Pegg- Barnett位相理论分析了光子数压缩态的位相特性 .讨论了在弱压缩极限下的位相分布特征 ,其概率密度分布呈正弦分布 ,其位相平均值和方差与θ0

By using the Pegg Barnett phase theory, this paper analyses the phase properties of the squeezed number states. It is obtained that the propabitity distribution P n(θ) for the squeezed number states in the weak squeezing limit the propuhititg density is sine shaped, and that the 〈ψ∧ θ〉 or △ψ θ 2 distribation dependents on the θ 0 or squeezing parameter.