中国物理B ›› 2005, Vol. 14 ›› Issue (9): 1716-1723.doi: 10.1088/1009-1963/14/9/006

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Probabilistic and controlled teleportation of tripartite state in a general form and its quantum networks

齐开国1, 袁洪春2   

  1. (1)Department of Physics, University of Science and Technology of China, Hefei 230026, China;Anhui Key Laboratory Optoelectronic Science and Technology,Hefei 230026, China; (2)Department of Physics, University of Science and Technology of China, Hefei 230026, China;Department of Physics, Huaibei Coal Industry Teachers'College, Huaibei 235000, China;Anhui Key Laboratory Optoelectronic Science and Technology,Hefei 230026, China
  • 收稿日期:2004-11-25 修回日期:2005-05-09 出版日期:2005-09-20 发布日期:2005-09-20

Probabilistic and controlled teleportation of tripartite state in a general form and its quantum networks

Yuan Hong-Chun (袁洪春)abc, Qi Kai-Guo (齐开国)ac    

  1. a Department of Physics, University of Science and Technology of China, Hefei 230026, China; b Department of Physics, Huaibei Coal Industry Teachers' College, Huaibei 235000, China; c Anhui Key Laboratory Optoelectronic Science and Technology, Hefei 230026, China
  • Received:2004-11-25 Revised:2005-05-09 Online:2005-09-20 Published:2005-09-20

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摘要： We discuss a scheme for probabilistic and controlled teleportation of an unknown arbitrary three-particle state by constructing a peculiar non-maximally entangled state as a controlled quantum channel，which is teleported between two sides with the help of the auxiliary particle and the cooperation of the third side (Charlie) as a supervisor. In comparison with some existing schemes, on the receiver's side it is easy to have the sender's state through operating two uniform unitary transformations in turn. In addition, we also give an efficient quantum network for implementing the new scheme by means of some primitive operations.

关键词: arbitrary tripartite state, controlled teleportation, quantum circuit

Abstract: We discuss a scheme for probabilistic and controlled teleportation of an unknown arbitrary three-particle state by constructing a peculiar non-maximally entangled state as a controlled quantum channel，which is teleported between two sides with the help of the auxiliary particle and the cooperation of the third side (Charlie) as a supervisor. In comparison with some existing schemes, on the receiver's side it is easy to have the sender's state through operating two uniform unitary transformations in turn. In addition, we also give an efficient quantum network for implementing the new scheme by means of some primitive operations.

Key words: arbitrary tripartite state, controlled teleportation, quantum circuit

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.-a (Quantum information)