[1] [1] Hillery M. Amplitude-squared squeezing of the electromagnetic field [J]. Phys. Rev. (A), 1987, 36 (8): 3796-3802.

[2] [2] Hillery M. Sum and difference squeezing of the electromagnetic field [J]. Phys. Rev. (A), 1989, 40(6): 3147-3155.

[3] [3] Bergou J A, Hillery M, Yu Daoqi. Minimum uncertainty states for amplitude-squared squeezing: Hermite polynomial states [J]. Phys. Rev. (A), 1991, 43(1): 515-520.

[9] [9] Agarwal G S, Tara K. Nonclassical properties of states generated by the excitations on a coherent state [J]. Phys.Rev. (A), 1991, 43(1): 492-497.

[10] [10] Zhang Z X, Fan H Y. Properties of states generated by excitations on a squeezed vacuum state [J]. Phys. Lett.(A), 1992, 165:14-18.

[11] [11] Jones G N, Haight J, Lee C T. Nonclassical effects in the photon-added thermal state [J]. Quantum and Semiclass Opt., 1997, (9): 411-418.

[12] [12] Lu Hong, Guo Guangcan. Nonclassical properties of photon-added pair coherent states [J]. Acta Physica Sinica (Overseas Edition), 1999, 8(8): 577-582.

[20] [20] Barnett S M, Knight P L. Thermofield analysis of squeezing and statistical mixtures in quantum optics [J]. J Opt Soc Am (B), 1985, 2: 467.

[21] [21] Slusher R E, et al. Observation of squeezed states generated by four-wave mixing in an optical cavity [J]. Phys.Rev. Lett., 1985, 55: 2409.

[22] [22] Furusawa A, et al. Unconditional quantum teleportation [J]. Science, 1998, 282: 706.