[1] Zhang Yongde. Principles of Quantum Information Physics （量子信息物理原理)[M]. Beijing: Science Press, 200（in Chinese).

[2] Einstein A, et al. Can quantum-mechanical description of physical reality be considered complete [J]. Phys. Rev., 1935, 47: 777-780.

[3] Imamoglu A, Awschalom D D, Burkard G. Quantum information processing using quantum dot spins and cavity QED[J]. Phys. Rev. Lett., 1999, 83(20): 4204-4207.

[4] Su Xiaoqin, Guo Guangcan. Quantum communication and quantum computation[J]. Chinese Journal of Quantum Electronics (量子电子学报), 2004, 21(6): 706-718 (in Chinese).

[5] Liu Wenpeng, Song Xueke, Ye Liu. An easy scheme for implementing conditional logic gate in cavity QED[J]. Chinese Journal of Quantum Electronics （量子电子学报), 2013, 30(6): 738-742 (in Chinese).

[6] Horodecki R, Horodecki P, Horodecki M, et al. Quantum entanglement[J]. Rev. Mod. Phys., 2009, 81(2): 865.

[7] Amico L, Fazio R, Osterloh A, et al. Entanglement in many-body system[J]. Rev. Mod. Phys., 2008, 80(2): 517.

[8] Chen Ming, Zhu Shiqun. Entanglement of Heisenberg XY model on inhomogeneous periodic chain[J]. Chinese Journal of Quantum Electronics （量子电子学报), 2012, 29(4): 448-45（in Chinese).

[9] Cao Min, Zhu Shiqun. Thermal entanglement between alternate qubits of a four-qubit Heisenberg XX chain in a magnetic field[J]. Phys. Rev. A, 2005, 71(3): 034311.

[10] Zhang Rong, Zhu Shiqun. Thermal entanglement in a two-dimensional Heisenberg XY model[J]. Phys. Lett. A, 2006, 348(3): 110-118.

[11] Zhang Guofeng, Li Shushen. Entanglement in a spin-one chain[J]. Solid State Communications, 2006, 138(1): 17-21.

[12] Xu Lin, Xia Yunjie. Quantum correlations and thermal entanglement in a two-qubit Heisenberg XXZ model with external magnetic fields[J]. Chinese Journal of Quantum Electronics （量子电子学报), 2012, 29(2): 185-191 (in Chinese).

[13] Zhang Guofeng. Thermal entanglement and teleportation in a two-qubit Heisenberg chain with Dzyaloshinski-Moriya anisotropic antisymmetric interaction[J]. Phys. Rev. A, 2007, 75(3): 034304.

[14] Li Dachuang, Cao Zhuoliang. Entanglement in the anisotropic Heisenberg XYZ model with different Dzyaloshinskii-Moriya interaction and inhomogeneous magnetic field[J]. Eur. Phys. J. D, 2008, 50(2): 207-214.

[15] Wootters W K. Entanglement of formation of an arbitrary state of two qubits[J]. Phys. Rev. Lett., 1998, 80(10): 2245-2248.

[16] Li Jiqiang, Cheng Zhi, Zhou Bin. Thermal entanglement in a {Cu3} single molecular magnet in the magnetic field[J]. Acta Phys. Sin. （物理学报), 2013, 62(19): 190302 (in Chinese).

[17] Lee J, Kim M S. Entanglement teleportation via Werner states[J]. Phys. Rev. Lett., 2000, 84(18): 4236-4239.

[18] Jozsa R. Fidelity for mixed quantum states[J]. J. Mod. Opt., 1994, 41(12): 2315-2323.

[19] Milburn G J. Intrinsic decoherence in quantum mechanics[J]. Phys. Rev. A, 1991, 44(9): 5401-5406.