[1] See e.g.,Loudon R. The Quantum Theory of Light [M].Oxford: Oxford University Press,1973.

[2] Fan Hongyi,Zaidi H R. An exact calculation of the expectation values of phase operators in squeezed states [J].Opt. Commun.,1988,68: 143.

[3] Agarwal G S. Eigenstates of the phase operator àla Dirac for a two-mode field [J].Opt. Commun.,1993,100:479.

[4] Fan Hongyi,et al. Does the creation operator a+ possess eigenvectors [J].Commun. Theor. Phys.,1984,3: 175.

[5] Fan Hongyi. On the common eigenvectors of two-mode creation operators and the charge operator [J].Mod.Phys. Lett. A,1994,9: 1291.

[6] Fan Hongyi. Complex prepresentation of the density matrix obtained via creation operator eigenvectors [J].Phys.Lett. A,1996,219: 175.

[7] Fan Hongyi,Wunsche A. Eigenstates of boson creation operator [J].Eur. Phys. J. D,2001,15: 405-412.

[8] Fan Hongyi,et al. Dual eigenkets of the Susskind-Glogower phase operator [J].Phys. Rev. A,1996,54: 5295.

[9] Heitler W. The Quantum Theory of Radiation [M].3rd ed. Oxford: London: Claredon Press,1954.