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
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; cAnhui Key Laboratory Optoelectronic Science and Technology, Hefei 230026, China
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.
Received: 25 November 2004
Revised: 09 May 2005
Accepted manuscript online:
Yuan Hong-Chun (袁洪春), Qi Kai-Guo (齐开国) Probabilistic and controlled teleportation of tripartite state in a general form and its quantum networks 2005 Chinese Physics 14 1716
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