| Probabilistic and controlled teleportation of tripartite state in a general form and its quantum networks |
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| 作者姓名： | 袁洪春 齐开国 |
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| 作者单位： | 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;Department of Physics, University of Science and Technology of China, Hefei 230026, China;Anhui Key Laboratory Optoelectronic Science and Technology,Hefei 230026, China |
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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.
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| 关 键 词： | 量子网络 概率论 远程控制 计算机技术 |
| 文章编号： | 1009-1963/2005/14（09）/1716-08 |
| 收稿时间： | 2004-12-25 |
| 修稿时间： | 5/9/2005 12:00:00 AM |
Probabilistic and controlled teleportation of tripartite state in a general form and its quantum networks |
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| Yuan Hong-Chun and Qi Kai-Guo.Probabilistic and controlled teleportation of tripartite state in a general form and its quantum networks[J].Chinese Physics B,2005,14(9):1716-1723. |
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| Authors: | Yuan Hong-Chun and Qi Kai-Guo |
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| Institution: | Department of Physics, University of Science and Technology of China, Hefei 230026, China;Anhui Key Laboratory Optoelectronic Science and Technology,Hefei 230026, China; 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 |
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| 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. |
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| Keywords: | arbitrary tripartite state controlled teleportation quantum circuit |
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