[1] Boukobza E, Tannor D J. Entropy exchange and entanglement in the Jaynes-Cummings model[J]. Phys. Rev. A, 2005, 71(6): 632-638.

[2] Akhtarshenas S J, Farsi M. Negativity as entanglement degree of the Jaynes-Cumming mode[J]. Physica Scripta, 2007, 75(5): 608-614.

[3] Tesser T E, Deutsch I H, Delgada A. Entanglement sharing in the two-atom Tavis-Cummings mode[J]. Phy. Rev. A, 2003, 68(6): 5343-5348.

[6] Baseia B, de Lima A F, Marques G C. Intermediate number-phase state of the quantized radiation field[J]. Phys. Lett. A, 1995, 204(1): 1-6.

[7] Pregnell K L, Pegg D T. Single-shot measurement of quantum optical phase[J]. Phys. Rev. Lett., 2002, 89(17): 173601.

[13] Peres A. Separability criterion for density matrices[J]. Phys. Rev. Lett., 1996, 77(8): 1413-1415.

[14] Vedral V, Plenio M B, Rippin M A, et al. Quantifying entanglement[J]. Phys. Rev. Lett., 1997, 78(12): 2275-2279.

[15] Hünkar Kayhan. System mixedness as a contributor to entanglement in the Jaynes-Cummings model[J]. Phys. Scr., 2011, 83(2): 226-232.