[1] [1] Zhao Yaping, Hao Shuhong, Su Xiaolong, et al.. Generation system of continuous-variable six-partite and eight-partite star cluster entangled states [J]. Acta Optica Sinica, 2012, 32(6): 0627002.

[2] [2] Liao Qinghong, Liu Ye, Jia Shulei. Study of entanglement sudden death between two atoms in the one-photon and two-photon Jaynes-Cummings models [J]. Chinese J Lasers, 2012, 39(6): 0618001.

[3] [3] Yu Yafei, Zhang Zhiming. Analysis on unsecurity of quantum secret sharing based on smolin bound entangled states [J]. Acta Optica Sinica, 2008, 28(3): 0556-0559.

[4] [4] Wang Juxia, Yang Zhiyong, An Yuying. Quantum information transfer via multi-photon interaction [J]. Acta Optica Sinica, 2007, 27(8): 1508-1512.

[5] [5] Liu Tangkun, Wang Jisuo, Liu Xiaojun, et al.. Fidelity of quantum information in a pair atoms of entanglement state interacting with coherent state [J]. Acta Optica Sinica, 2000, 20(11): 1449-1455.

[6] [6] S Tanzilli, W Tittel, M Halder, et al.. A photonic quantum information interface [J]. Nature, 2005, 437(7055): 116-120.

[7] [7] Tan Lei, Zhang Yuqing, Zhu Zhonghua. Entanglement dynamics of a moving multi-photon Jaynes-Cummings model in mixed states [J]. Chin Phys B, 2011, 20(7): 070303.

[8] [8] N B Grosse, W P Bowen, K McKenzie, et al.. Harmonic entanglement with second-order nonlinearity [J]. Phys Rev Lett, 2006, 96(6): 063601.

[9] [9] H Hübel, D R Hame, A Fedrizzi, et al.. Direct generation of photon triplets using cascaded photon-pair sources [J]. Nature, 2010, 466(7306): 601-603.

[10] [10] A H Tan, C D Xie, K C Peng. Bright three-color entangled state produced by cascaded optical parametric oscillators [J]. Phys Rev A, 2012, 85(1): 013819.

[11] [11] D Wang, Y Zhang, M Xiao. Quantum limits for cascaded optical parametric amplifiers [J]. Phys Rev A, 2013, 87(2): 023834.

[12] [12] X J Jia, Z H Yan, Z Y Duan, et al.. Experimental realization of three-color entanglement at optical fiber communication and atomic storage wavelengths [J]. Phys Rev Lett, 2012, 109(25): 253604.

[13] [13] J Guo, H X Zou, Z H Zhai, et al.. Generation of continuous-variable tripartite entanglement using cascaded nonlinearities [J]. Phys Rev A, 2005, 71(3): 034305.

[14] [14] S Q Zhai, R G Yang, K Liu, et al.. Bright two-color tripartite entanglement with second harmonic generation [J]. Opt Express, 2009, 17(12): 9851-9857.

[15] [15] S Q Zhai, R G Yang, D H Fan, et al.. Tripartite entanglement from the cavity with second-order harmonic generation [J]. Phys Rev A, 2008, 78(1): 014302.

[16] [16] Luo Yu, Li Ying, Pan Qing, et al.. Experimental generation of entangled lights from resonating frequency doubler [J]. Acta Optica Sinica, 2006, 26(2): 0305-0310.

[17] [17] Y B Yu, H J Wang, M Xiao, et al.. Directly produced three-color entanglement by quasi-phase-matched third-harmonic generation [J]. Opt Express, 2011, 19(15): 13949-13956.

[18] [18] Lu Daoming. Entanglement between cavities in system of two atoms trapped in two distant cavities connected by optical fiber [J]. Laser & Optoelectronics Progress, 2011, 48(11): 112701.

[19] [19] A S Coelho, F A S Barbosa, K N Cassemiro, et al.. Three-color entanglement [J]. Science, 2009, 326(5954): 823-826.

[20] [20] Luo Sixing, Yao Li, Yang Bojun. Generation of entangled photon pairs through photonie crystal fiber [J]. Chinese J Lasers, 2009, 36(2): 410-412.

[21] [21] E Megidish, A Halevy, T Shacham, et al.. Entanglement swapping between photons that have never coexisted [J]. Phys Rev Lett, 2013, 110(21): 210403.

[22] [22] Hoi-Kwan Lau, Christian Weedbrook. Quantum secret sharing with continuous-variable cluster states [J]. Phys Rev A, 2013, 88(4): 042313.

[23] [23] P D Drummond, K J McNeil, D F Walls. Non-equilibrium transitions in sub/second harmonic generation: I. Semiclassical theory [J]. Optica Acta, 1980, 27(3): 321-335.

[24] [24] Z Y Ou. Quantum-nondemolition measurement and squeezing in type-II harmonic generation with triple resonance [J]. Phys Rev A, 1994, 49(6): 4902.

[25] [25] C W Gardiner, M J Collett. Input and output in damped quantum systems: quantum stochastic differential equations and the master equation [J]. Phys Rev A, 1985, 31(6): 3761.

[26] [26] Jia Xiaojun, Duan Zhiyuan, Yan Zhihui. Dependence of continuous variable entanglement enhancement on experimental parameters [J]. Acta Optica Sinica, 2013, 33(2): 0227001.

[27] [27] M J Collett, C W Gardiner. Squeezing of intracavity and traveling-wave light fields produced in parametric amplification [J]. Phys Rev A, 1984, 30(3): 1386.

[28] [28] P Van Loock, A Furusawa. Detecting genuine multipartite continuous-variable entanglement [J]. Phys Rev A, 2003, 67(5): 052315.

[29] [29] K N Cassemiro, A S Villar, M Martinelli, et al.. The quest for three-color entanglement: experimental investigation of new multipartite quantum correlations [J]. Opt Express, 2007, 15(26): 18236.