[1] Gisin N et al 2002 Rev. Mod. Phys. 74 145

[2] Lo H K and Chau H F 1999 Science 283 2050

Shor P W, Preskill J 2000 Phys. Rev. Lett. 85 441

[3] Bennett C H and Brassard G 1984 Proc. IEEE Int. Conf.
on Computers, Systems and Signal Processing ( Bangalore, India
(New York: IEEE) p 175

[4] Ekert A K 1991 Phys. Rev. Lett. 67 661

[5] Bennett C H, Brassard G and Mermin N D 1992 Phys. Rev.
Lett. 68 557

[6] Long G L and Liu X S 2002 Phys. Rev. A 65 032302

[7] Deng F G and Long G L 2003 Phys. Rev. A 68 042315

[8] Wang C et al 2005 Phys. Rev. A 71 044305

[9] Wang C et al 2005 Optics Commun. 252 15

[10]Cao H J and Song H S 2006 Commun. Theor. Phys. 46 65

[11]Wang H F, Zhang S, Yeon K H, Um C I 2006 J. Korean Phys.
Soc. 49 459

[12] Yang Y G, Wen Q Y, Zhu F C 2005 Acta Phys. Sin.
54 5544 (in Chinese)

[13] Bennett C H 1992 Phys. Rev. Lett. 68 3121

[14] Deng F G and Long G L 2004 Phys. Rev. A 70 012311

[15] Cai Q Y and LI B W，2004 Chin. Phys. Lett. 21 601

[16]Liu W T, Wu W, Liang L M, Li C Z and Yuan J M, 2006
Chin. Phys. Lett. 23 287

[17] Grosshans F et al 2003 Nature 421 238

[18] Wang C et al 2005 Sci. Chin. G 48 237

[19] Townsend P D et al 1994 Elec. Lett. 30 1875

[20] Phoenix S J D 1995 J. Mod. Opt. 42 1155

[21] Xue P et al 2002 Phys. Rev. A 65 022317

[22] Deng F G et al 2002 Chin. Phys. Lett. 19 893

[23] Li X H et al 2006 Chin. Phys. Lett. 23 1080

[24] Deng F G et al 2006 Phys. Lett. A 359 359

[25] Li C Y et al 2005 Chin. Phys. Lett. 22
1049

[26] Li C Y et al 2006 Chin. Phys. Lett. 23 2896

[27] Gao T, Yan F L and Wang Z X 2005 Chin. Phys.
Lett. 22 2473

[28] Mo X F, Zhang T, Xu F X, Han Z F and Guo G C 2006
Preprint arXiv: quant-ph/0610096

[29] Deng F G, Long G L and Liu X S 2003 Phys. Rev. A 68
042317

[30] Deng F G and Long G L 2004 Phys. Rev. A 69 052319

[31] Inoue K, Waks E and Yamamoto Y 2003 Phys. Rev. A
68 022317

[32] Inoue K 2006 Phys. Rev. A 73 032332

[33] Deng F G et al 2005 Phys. Rev. A 72 044302

[34] Li X H et al 2006 Phys. Rev. A 74 054302