[1] S. M. Barnett, D. T. Pegg. Phase in quantum optics. J. Phys. (A), Math. Gen., 1986, 19(18): 3849～3861

[2] Robert Lynch. Phase fluctuations in a squeezed state using measured phase operators. J. Opt. Soc. Am. (B), 1987, 4(10): 1723～1726

[3] Hsi-Ten Tu, Chang-De Gong. Properties of the measured phase opertors in the squeezed number states. J. Mod. Opt., 1993, 40(1): 57～72

[4] H. Umezawa, Y. Yamanaka. Micro, macro and thermal concepts in quantum field theory. Adv. Phys., 1988, 37(5): 531～557

[5] J. Oz-Vogt, A. Mann, M. Revzen. Thermal coherent states and thermal squeezed states. J. Mod. Opt., 1991, 38(12): 2339～2347

[6] H. Fearn, M. J. Collett. Representations of Squeezed states with thermal noise. J. Mode. Opt., 1988, 35(3): 553～564

[7] K. Wodkiewwicz. On the quantum mechanics of squeezed states. J. Mod. Opt., 1987, 34(67): 941～948