Wigner functions for the photon-added and photon-depleted even and odd coherent states
增、减光子奇偶相干态的Wigner函数

By using the definition of Wigner function in Fock states representation,Wigner functions for the photon-added and photon-depleted even and odd coherent states is reconstvucted. The results show that photon-added even and odd coherent states always demonstrate non-classical characteristics but photon-depleted even and odd coherent states demonstrate non-classical characteristics only when k take odd and even number respectively.