| Probabilistic teleportation of multi-particle partially entangled state |
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| 引用本文： | 陈秀波,杜建忠,温巧燕,朱甫臣. Probabilistic teleportation of multi-particle partially entangled state[J]. 中国物理 B, 2008, 17(3): 771-777 |
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| 作者姓名： | 陈秀波 杜建忠 温巧燕 朱甫臣 |
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| 作者单位： | State Key Laboratory of Networking and SwitchingTechnology, Beijing University of Posts and Telecommunications,Beijing 100876, China；School of Science, Beijing University of Posts andTelecommunications, Beijing 100876, China;School of Information Engineering, Beijing University ofScience and Technology, Beijing 100083, China;State Key Laboratory of Networking and SwitchingTechnology, Beijing University of Posts and Telecommunications,Beijing 100876, China；School of Science, Beijing University of Posts andTelecommunications, Beijing 100876, China;National Laboratory for Modern Communications, P O Box 810, Chengdu 610041, China |
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| 基金项目： | Project supported by the NationalHigh Technology Research and Development Program of China (Grant No2006AA01Z419), the Major Research Plan of the National NaturalFoundation of China (Grant No 90604023), the National Laboratory forModern Communications Science Foundation of China (Grant No9140C1101010601), and the Natural ScienceFoundation of Beijing (Grant No 4072020). |
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| 摘 要： | Utilizing the generalized measurement described by positive operator-wlued measure, this paper comes up with a protocol for teleportation of an unknown multi-particle entangled （GHZ） state with a certain probability. The feature of the present protocol is to weaken requirement for the quantum channel initially shared by sender and receiver. All unitary transformations performed by receiver are summarized into a formula. On the other hand, this paper explicitly constructs the efficient quantum circuits for implementing the proposed teleportation by means of universal quantum logic operations in quantum computation.
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| 关 键 词： | 量子转移 量子回路 正面算符 转换方式 |
| 收稿时间： | 2007-07-16 |
| 修稿时间： | 2007-08-02 |
Probabilistic teleportation of multi-particle partially entangled state |
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| Chen Xiu-Bo,Du Jian-Zhong,Wen Qiao-Yan and Zhu Fu-Chen. Probabilistic teleportation of multi-particle partially entangled state[J]. Chinese Physics B, 2008, 17(3): 771-777 |
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| Authors: | Chen Xiu-Bo Du Jian-Zhong Wen Qiao-Yan Zhu Fu-Chen |
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| Affiliation: | National Laboratory for Modern Communications, P O Box 810, Chengdu 610041, China; School of Information Engineering, Beijing University ofScience and Technology, Beijing 100083, China; State Key Laboratory of Networking and SwitchingTechnology, Beijing University of Posts and Telecommunications,Beijing 100876, China；School of Science, Beijing University of Posts andTelecommunications, Beijing 100876, China |
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| Abstract: | Utilizing the generalized measurement described by positiveoperator-valued measure, this paper comes up with a protocol forteleportation of an unknown multi-particle entangled (GHZ) state with a certainprobability. The feature of the present protocol is to weakenrequirement for the quantum channel initially shared by sender andreceiver. All unitary transformations performed by receiver aresummarized into a formula. On the other hand, this paper explicitlyconstructs the efficient quantum circuits for implementing theproposed teleportation by means of universal quantum logicoperations in quantum computation. |
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| Keywords: | quantum teleportation quantumcircuits positive operator-valued measure unitary transformations |
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