Possible Realization of Cluster States and Quantum Information Transfer in Cavity QED via Raman Transition
ZHAN Zhi-Ming, LI Wei-Bin
School of Physics and Information Engineering, Jianghan University, Wuhan 430056
Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan430071
Possible Realization of Cluster States and Quantum Information Transfer in Cavity QED via Raman Transition
ZHAN Zhi-Ming;LI Wei-Bin
School of Physics and Information Engineering, Jianghan University, Wuhan 430056
Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan430071
摘要We present a scheme to generate cluster states with many atoms in cavity QED via Raman transition. In this scheme, no transfer of quantum information between the atoms and cavities is required, the cavity fields are only virtually excited and thus the cavity decay is suppressed during the generation of cluster states. The atoms are always populated in the two ground states. Therefore, the scheme is insensitive to the atomic spontaneous emission and cavity decay. We also show how to transfer quantum information from one atom to another.
Abstract：We present a scheme to generate cluster states with many atoms in cavity QED via Raman transition. In this scheme, no transfer of quantum information between the atoms and cavities is required, the cavity fields are only virtually excited and thus the cavity decay is suppressed during the generation of cluster states. The atoms are always populated in the two ground states. Therefore, the scheme is insensitive to the atomic spontaneous emission and cavity decay. We also show how to transfer quantum information from one atom to another.
ZHAN Zhi-Ming;LI Wei-Bin. Possible Realization of Cluster States and Quantum Information Transfer in Cavity QED via Raman Transition[J]. 中国物理快报, 2007, 24(2): 344-347.
ZHAN Zhi-Ming, LI Wei-Bin. Possible Realization of Cluster States and Quantum Information Transfer in Cavity QED via Raman Transition. Chin. Phys. Lett., 2007, 24(2): 344-347.
[1] Einstein A, Podolsky B and Rosen N 1935 Phys. Rev. 47777 [2] Mermin N D 1990 Phys. Rev. Lett. 65 1838 [3] Huelaga S F, Macchiavello C, Pellizzari T et al 1997 Phys. Rev. Lett. 79 3865 [4] Ekert A K 1991 Phys. Rev. Lett. 67 661 [5] Bennett C H, Brassard G, Crepeau C et al 1993 Phys. Rev.Lett. 70 1895 [6] Bennett C H and Wiesner S J 1992 Phys. Rev. Lett. 692881 [7] Bouwmeester D, Pan J W, Daniell M, Weinfurter H and Zeilinger A1999 Phys. Rev. Lett. 82 1345 [8] Pan J W, Bouwmeester D, Daniell M, Weinfurter H and A. Zerlinger2000 Nature 403 515 [9] Rauschenbeutel A, Nogues G, Osnaghi S, Bertet P, Brune M, Raimond JM and Haroche S 2000 Science 288 2024 [10] Zheng S B 2001 Phys. Rev. Lett. 87 230404 [11] Wu Y, Payne M G, Hagley E W and Deng L 2004 Phys. Rev.A 69 063803 [12] D\"ur W, Vidal G and Cirac J I 2000 Phys. Rev. A 62062314 [13] Briegel H J and Raussendorf R 2001 Phys. Rev. Lett. 86 910 [14] Nielsen M A 2004 Phys. Rev. Lett. 93 040503 [15] Yang X and Wu Y 2005 J. Opt. B: QuantumSemiclass. Opt. 7 54 [16] Wu Y and Yang X X 2006 Phys. Rev. D 73 067701 [17] Dong P, Xue Z Y, Yan M and Cao Z L 2006 Phys. Rev. A 73 033818 [18] Yang W X, Zhan Z M and Li J H 2005 Phys. Rev. A 72062108 [19] Zhan Z M, Yang W X, Li W B and Li J H 2006 Chin. Phys. Lett. 23 1984 [20] Zou X B and Mathis W 2005 Phys. Rev. A 72 013809 [21] Zheng S B 2004 Chin. Phys. Lett. 21 1689 [22] Wu Y 1996 Phys. Rev. A 54 1586 [23] Wu Y and Yang X X 1997 Phys. Rev. A 56 2443 [24] Zheng S B 2001 Phys. Rev. Lett. 87 230404 [25] Zhan Z M, Yang W X and Li J H 2004 Chin. Phys. Lett. 21 846 [26] Dong P, Xue Z Y, Yang M and Cao Z L 2006 Phys. Rev. A 73 033818 [27] Osnaghi S et al 2000 Phys. Rev. Lett. 85 2392 [28] Zhou X J et al 2002 Chin. Phys. Lett. 19 1582
2007, Vol. 24 
