[1] X. Wang, Y. Liu, and C. Wang, Acta Opt. Sin. (in Chinese) 25, 425 (2005).

[2] W. Liu, N. Li, C. Wang, and Y. Liu, Acta Opt. Sin. (in Chinese) 25, 1568 (2005).

[3] A. Einstein, B. Podolsky, and N. Rose, Phys. Rev. 47, 777 (1935).

[4] W. Dur, G. Vidal, and J. I. Cirac, Phys. Rev. A 62, 062314 (2000).

[5] H. J. Briegel and R. Raussendorf, Phys. Rev. Lett. 86, 910 (2001).

[6] W. Dur and H.-J. Briegel, Phys. Rev. Lett. 92, 180403 (2004).

[7] V. Scarani, A. Acin, E. Schenck, and M. Aspelmeyer, Phys. Rev. A 71, 042325 (2005).

[8] R. Raussendorf and H. J. Briegel, Phys. Rev. Lett. 86, 5188 (2001).

[9] P. Walther, K. J. Resch, T. Rudolph, E. Schenck, H. Weinfurter, V. Vedral, M. Aspelmeyer, and A. Zeilinger, Nature 434, 169 (2005).

[10] P. Walther, M. Aspelmeyer, K. J. Resch, and A. Zeilinger, Phys. Rev. Lett. 95, 020403 (2005).

[11] X. B. Zou, K. Pahlke, and W. Mathis, Phys. Rev. A 69, 052314 (2004).

[12] X. B. Zou and W. Mathis, Phys. Rev. A 71, 032308 (2005).

[13] S. D. Barrett and P. Kok, Phys. Rev. A 71, R060310 (2005).

[14] P. Dong, Z.-Y. Xue, M. Yang, and Z.-L. Cao, Phys. Rev. A 73, 033818 (2006).

[15] S.-H. Xiang and K.-H. Song, Chin. Phys. Lett. 23, 1466 (2006).

[16] R.-C. Yang, H.-C. Li, M.-X. Chen, and X. Lin, Chin. Phys. 15, 2315 (2006).

[17] S. B. Zheng, Phys. Rev. A 73, 065802 (2006).

[18] S. B. Zheng, Phys. Rev. A 66, R060303 (2002).

[19] E. Solano, G. S. Agarwal, and H. Walther, Phys. Rev. Lett. 90, 027903 (2003).

[20] A. Sorensen and K. Molmer, Phys. Rev. A 62, 022311 (2000).

[21] X. B. Zou, K. Pahlke, and W. Mathis, http://xxx.lanl.gov/PS_cache/quant-ph/pdf/0204/0204171.pdf.

[22] M. S. Tame, M. Paternostro, M. S. Kim, and V. Vedral, Phys. Rev. A 72, 012319 (2005).

[23] D. L. Zhou, B. Zeng, Z. Xu, and C. P. Sun, Phys. Rev. A 68, 062303 (2003).

[24] R. Raussendorf, D. E. Browne, and H. J. Briegel, Phys. Rev. A 68, 022312 (2003).

[25] M. A. Nielsen and C. M. Dawson, Phys. Rev. A 71, 042323 (2005).