[1] Bennett C H et al 1993 Phys. Rev. Lett. 70 1895

[2] Zhou L and Kuang L M 2004 Chin. Phys. Lett. 21 2101

[3] Zheng S B 2006 Chin. Phys. Lett. 23 2356

[4] Cirac J I et al 1997 Phys. Rev. Lett. 78 3221

[5] Parkins A S and Kimble H L 1999 J. Opt. B: Quantum
Semiclass. Opt. 1 496

[6] Shi T, Li Y, Song Z and Sun C P 2005 Phys. Rev. A
71 032309

[7] Lee J et al 2006 New J. Phys. 8 23

[8] Yin Z Q and Li F L 2007 Phys. Rev. A 75 012324

[9] Lin X et al 2007 Commun. Theor. Phys. 47 816

[10]Semiao F L et al 2002 Phys. Rev. A 66 063403

[11]Feng M and Wang X 2002 J. Opt. B: Quantum Semiclass.
Opt. 4 283

[12]Mundt A B et al 2002 Phys. Rev. Lett. 89 103001

[13] Zou X B et al 2002 Phys. Rev. A 65 064303

[14]Semiao F L et al 2005 Phys. Rev. A 71 065802

[15]Guthohrlein G R et al 2001 Nature 414 49

[16] Semiao F L et al 2001 Phys. Rev. A 64 024305

[17] Maurer C et al 2004 New J. Phys. 6 94

[18] Keller M et al 2004 New J. Phys. 6 95

[19] Kreuter A et al 2004 Phys. Rev. Lett. 92 203002

[20] Keller M et al 2005 Eur. Phys. J. D 32 16

[21] Keller M et al 2004 Nature 431 1075

[22] Yang W X, Zhan Z M and Li J H 2004 Chin. Phys. Lett.
21 421

[23]Semiao F L et al 2005 Phys. Rev. A 72 064305

[24]Liao J Q, Guo Y, Zeng H S and Kuang L M 2006 J. Phys. B
39 4709

[25] Kuang L M and Zhou L 2003 Phys. Rev. A 68 043606

[26] Guo Y and Kuang L M 2005 Chin. Phys. Lett. 22 595

[27]Paternostro M, Kim M S and Knight P L 2005 Phys. Rev. A
71 022311

[28] Ralph T C, Gilchrist A and Milburn G J 2003 Phys. Rev.
A 68 042319

[29] Hill S and Wootters W K 1997 Phys. Rev. Lett. 78 5022

[30] Wootters W K 1998 Phys. Rev. Lett. 80 2245

[31]Wang X 2001 Phys. Rev. A 64 022302

Wang X 2002 J. Phys. A 35 165

[32] Mundt A B 2003 PhD Thesis (Universit\"{at Innsbruck)