中国物理B ›› 2002, Vol. 11 ›› Issue (3): 218-221.doi: 10.1088/1009-1963/11/3/303

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Scheme for teleporting an unknown atomic state to any node in a quantum communication network

郭光灿1, 宋克慧2, 张为俊3   

  1. (1)Laboratory of Quantum Communication and Quantum Computation, University of Science and Technology of China, Hefei 230026, China; (2)Laboratory of Quantum Communication and Quantum Computation, University of Science and Technology of China, Hefei 230026, China; Laser Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; Department of Physics, Huaihua Teachers College, Huaihua 418008, China; (3)Laser Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • 收稿日期:2001-02-14 修回日期:2001-10-25 出版日期:2002-03-13 发布日期:2005-06-13

Scheme for teleporting an unknown atomic state to any node in a quantum communication network

 Song Ke-Hui (宋克慧)abc, Zhang Wei-Jun (张为俊)b, Guo Guang-Can (郭光灿)a   

  1. a Laboratory of Quantum Communication and Quantum Computation, University of Science and Technology of China, Hefei 230026, China; b Laser Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;  c Department of Physics, Huaihua Teachers College, Huaihua 418008, China
  • Received:2001-02-14 Revised:2001-10-25 Online:2002-03-13 Published:2005-06-13

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摘要： We propose a scheme for teleporting an unknown atomic state. In order to realize the teleportation to any node in a quantum communication network, an n-atom Greenberger-Horne-Zeilinger (GHZ) state is needed, which is utilized as the quantum channel. From this n-atom GHZ state, two-node entanglement of processing and receiving teleported states can be obtained through the quantum logic gate manipulation. Finally, for the unequally weighted GHZ state, probabilistic teleportation is shown.

Abstract: We propose a scheme for teleporting an unknown atomic state. In order to realize the teleportation to any node in a quantum communication network, an n-atom Greenberger-Horne-Zeilinger (GHZ) state is needed, which is utilized as the quantum channel. From this n-atom GHZ state, two-node entanglement of processing and receiving teleported states can be obtained through the quantum logic gate manipulation. Finally, for the unequally weighted GHZ state, probabilistic teleportation is shown.

Key words: teleportation, n-particle GHZ state, probabilistic teleportation, quantum logic gate manipulation

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Hk (Quantum communication) 03.67.Lx (Quantum computation architectures and implementations)