| Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state |
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| 引用本文： | 杨宇光,温巧燕,朱辅臣. Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state[J]. 中国物理, 2006, 15(5): 907-911 |
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| 作者姓名： | 杨宇光 温巧燕 朱辅臣 |
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| 作者单位： | Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China;Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China;National Defense Science and Technology Secrecy Communications Key Lab, Southwest Communications Institute,Chengdu 610041, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 60373059), the Major Research Plan of the National Natural Science Foundation of China (Grant No 90604023) and the Doctoral Foundation of the State Education Ministry of China |
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| 摘 要： | A conclusive teleportation protocol of a d-dimensional two-particle unknown quantum state using three d- dimensional particles in an arbitrary pure state is proposed. A sender teleports the unknown state conclusively to a receiver by using the positive operator valued measure（POVM） and introducing an ancillary qudit to perform the generalized Bell basis measurement, We calculate the optimal teleportation fidelity. We also discuss and analyse the reason why the information on the teleported state is lost in the course of the protocol,
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| 关 键 词： | POVM 广义贝尔基础 逼真度 数学分析 |
| 收稿时间： | 2005-09-29 |
| 修稿时间： | 2005-09-292005-12-05 |
Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state |
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| Yang Yu-Guang,Wen Qiao-Yan and Zhu Fu-Chen. Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state[J]. Chinese Physics, 2006, 15(5): 907-911 |
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| Authors: | Yang Yu-Guang Wen Qiao-Yan Zhu Fu-Chen |
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| Affiliation: | National Defense Science and Technology Secrecy Communications Key Lab, Southwest Communications Institute,Chengdu 610041, China; Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A conclusive teleportation protocol of a d-dimensional two-particleunknown quantum state using three d-dimensional particles in an arbitrarypure state is proposed. A sender teleports the unknown state conclusively toa receiver by using the positive operator valued measure(POVM) andintroducing an ancillary qudit to perform the generalized Bell basismeasurement. We calculate the optimal teleportation fidelity. We alsodiscuss and analyse the reason why the information on the teleported stateis lost in the course of the protocol. |
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| Keywords: | teleportation POVM generalized Bell basis teleportationfidelity |
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