摘要We propose a quantum teleportation scheme for tripartite entangled coherent state (ECS) with continuous variable. Our scheme is feasible and economical in the sense that we need only linear optical devices such as beam splitters, phase shifters and photon detectors and employ three bipartite maximally ECSs as quantum channels. We also generalize the tripartite scheme into multipartite case and calculate the minimum average fidelity for the schemes in tripartite and multipartite cases.
Abstract：We propose a quantum teleportation scheme for tripartite entangled coherent state (ECS) with continuous variable. Our scheme is feasible and economical in the sense that we need only linear optical devices such as beam splitters, phase shifters and photon detectors and employ three bipartite maximally ECSs as quantum channels. We also generalize the tripartite scheme into multipartite case and calculate the minimum average fidelity for the schemes in tripartite and multipartite cases.
[1] Bennett C H et al 1993 Phys. Rev. L 70 1895 [2] Barjaktarevic J P et al 2005 Phys. Rev.L 95230501 [3] Liu Xiao-Bao et al 2008 Chin. Phys. Lett. 252766 [4] Wang M J et al 2008 Chin. Phys. Lett. 25 3860 [5] Bouwmeester D et al 1997 Nature 390 575 [6]Nielsen M A, Knill E and Laflamme R 1998 Nature 396 52 [7] Sun Shi-Hai et al 2008 Chin. Phys. Lett. 252358 [8] Braunstein S L and Kimble H J 1998 Phys. Rev. L 80 869 [9] Nguyen B A 2003 Phys. Rev. A 68 022321 [10] Furusawa A et al 1998 Science 282 706 [11] Yonezawa H et al 2007 Phys. Rev. A 76 032305 [12] Zhang T C et al 2003 Phys. Rev. A 67 033802 [13] Bowen W P et al 2003 Phys. Rev. A 67 032302 [14] Sherson J F et al 2006 Nature 443 557 [15] Yonezawa H, Aoki T and Furusawa A 2004 Nature 431 430 [16] Enk S J and Hirota O2001 Phys. Rev. A 64022313 [17] Schr\"{odinger E 1935 Naturwissenschaften 23 807 Schr\"{odinger E 1935 Naturwissenschaften 23823 Schr\"{odinger E 1935 Naturwissenschaften 23844 [18] Wang X G 2001 Phys. Rev. A 64 022302 [19] Zheng Y Z, Wang X H and Guo G C 2003 Acta Photon.Sin. 32 765 [20] Prakash H, Chandra N, Prakash R and Shivani 2007 Phys. Rev. A 75 044305 [21] Cheong Y H, Kim H and Lee H W 2004 Phys. Rev. A 70 032327
2009, Vol. 26 
