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The atomic-state quantum teleportation in a dissipative environment is investigated by the quantum theory of damping - density operator approach and the numerical calculations. The effects of fidelity for different initial atomic-states are discussed. The results show that, when only the input atomic-state is exposed to the squeezed vacuum reservoirs, the fidelity of atomic-state with larger probability in the ground state is larger than that of other state; on the other hand, when the quantum channel is exposed to the reservoirs, the input state with equal probability in the ground state and the excited state has the largest fidelity in all the teleported states.
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Keywords:
- quantum teleportation /
- fidelity /
- squeezing vacuum reservoir
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[1] Bennett C H, Brassard G 1993 Phys. Rev. Lett. 70 1895
[2] Ye L, Guo G C 2004 Phys. Rev. A 70 054303
[3] Feng M et al 2003 Phys. Rev. A 67 014306
[4] Manzoor Ikram, Li F L, Zubairy M S 2007 Phys. Rev. A 75 062336
[5] Zhang Q, Li F L, Li H R 2006 Acta Phys. Sin. 55 2275 (in Chinese) [张 茜、李福利、李宏荣 2006 55 2275]
[6] Wu Y, Payne M G, Hagley E W, Deng L 2004 Phys. Rev. A 69 063803 Wu Y, Deng L 2004 Opt. Lett. 29 1144
[7] Zheng Y Z, Dai L Y, Guo G C 2003 Acta Phys. Sin. 52 2678 (in Chinese)[郑亦庄、戴玲玉、郭光灿 2003 52 2678]
[8] Zhai Z H, Li Y M, Wang S K, Guo J, Zhang T C, Gao J R 2005 Acta Phys. Sin. 54 2710 (in Chinese)[翟泽辉、李永明、王少凯、郭 娟、张天才、郜江瑞 2005 54 2710]
[9] Pan C N, Fang M F 2008 Chin. Phys. B 17 34
[10] Ji X, Li K, Zhang S 2006 Chin. Phys. 15 478
[11] Xia Y J, Wang G H, Du S J 2007 Acta Phys. Sin. 56 4331 (in Chinese)[夏云杰、王光辉、杜少将 2007 56 4331]
[12] Vaidman L 1994 Phys. Rev. A 49 1473
[13] Braunstein S L, Kimble H J 1998 Phys. Rev. Lett. 80 869
[14] Solano E, Cesar C L 2001 Phys. J. D 13 121
[15] Lee H W and Kim J 2000 Phys. Rev. A 63 012305
[16] Lee H W 2001 Phys. Rev. A 64 014302
[17] Moussa M H Y 1997 Phys. Rev. A 55 R3287
[18] Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurters H, Zeilinger A 1997 Nature 390 575
[19] Furusawa A, Sorensen J L, Braunstein S L 1998 Science 282 706
[20] Nielsen M A, Chuang I L 2000 Quantum Computation and Quantum Information (Cambridge: Cambridge University Press).
[21] Oh S, Lee S, Lee H W 2002 Phys. Rev. A 66 022316
[22] Scully M O, Zubairy M S 1997 Quantum Optics ( Cambridge University Press)
[23] Massar S, Popescu S 1995 Phys. Rev. Lett. 74 1259
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