激发压缩真空态的相位概率分布(英文)

Phase Probability Distributions of the Excited Squeezed Vacuum States

应用Pegg和Barnett提出的相位算符和相位态理论,研究了激发压缩真空态的相位概率分布特性.数值计算结果表明,激发压缩真空态的相位概率分布主要受到相位参量和压缩参量的调节,相位参量使相位概率分布呈峰值结构,压缩参量的变化将影响相位概率分布的峰值强度,此外激发光子数对相位概率分布也有较大的影响.

Making use of the phase state theory introduced by Pegg and Barnett, the phase probability distributions of the excited squeezed vacuum states were investigated. And then the influence of the phase parameter, the squeezing parameter and the excited photon number on the phase probability distributions were studied with the aid of numerical method. It is shown that these probability distributions of the states are regulated by the phase parameter and the squeezing parameter mainly. The variety of phase parameter causes the probability distributions exhibiting peak and vale shape. The peak and vale values are determined by the squeezing parameter. Furthermore, the phase probability distributions are influenced by the excited photon number in a certain extent.