[1] [1] Yamamoto Y,Haus H A.Effect of electrical partition noise on squeezing in conductor lasers [J].Phys.Rev.,1992.A45:6596～6604

[2] [2] Orszay M,Ramirez R,Retamal J C et al.Generation of highly squeezed states in a two-photon micromaser [J].Phys.Rev.1991,A49:6717～6720

[3] [3] Fang Maofa,Lui Huien.Properties of entropy and phase of the field in the two-photon Jaynes-Cummings model with an added Kerr medium [J] .Phys.Lett.,1995,A200:250～256

[6] [6] Xie Fangsen,Lei Minsheng,Guo Qin.Evolution of the photon-number probability distribution in the system of athree level atom with an added Kerr-like medium [J].Chinese Journal of Lasers.,1997,B6:563～569

[7] [7] Barnett S M,Pegg D T.On the Hermitian optical phase operator [J].J.Mod.Opt.,1989,36: 7～19

[8] [8] Pegg D T,Barnett S M.Phase properties of the quantized single-mode electromagnetic field [J].Phys.Rev.,A39:1665～1675