Phase probability distributions of photon-subtracted squeezed vacuum states
减光子压缩真空态的相位概率分布

Using the phase state and phase operator introduced by Pegg and Barnett, the phase probability distributions of the photon-subtracted squeezed vacuum states were investigated. Numerical results indicate that the phase probability distribution of the photon-subtracted squeezed vacuum states are mainly regulated by the phase parameter and the squeezing parameter. The phase parameter causes the probability distributions exhibiting peak and vale shape, and peak value is determined by the squeezing parameter. Furthermore, the phase probability distributions are influenced by the photon-subtracted number in a certain extent.