| Quantum Key Distribution Using Four-Qubit W State |
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| 引用本文： | CAO Hai-Jing SONG He-Shan. Quantum Key Distribution Using Four-Qubit W State[J]. 理论物理通讯, 2006, 46(1): 65-68 |
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| 作者姓名： | CAO Hai-Jing SONG He-Shan |
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| 作者单位： | Department of Physics, Dalian University of Technology, Dalian 116024, China |
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| 基金项目： | The project supported by National Natural Science Foundation of China under Grant No. 60472017 |
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| 摘 要： |
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| 关 键 词： | 量子键分布 W态 Bell态测量 安全性 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2005-09-26 |
Quantum Key Distribution Using Four-Qubit W State |
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| CAO;Hai-Jing;SONG;He-Shan. Quantum Key Distribution Using Four-Qubit W State[J]. Communications in Theoretical Physics, 2006, 46(1): 65-68 |
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| Authors: | CAO Hai-Jing SONG He-Shan |
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| Abstract: | A new theoretical quantum key distribution scheme based on entanglement swapping is proposed, where four-qubit symmetric W state functions as quantum channel. It is shown that two legitimate users can secretly share a series of key bits by using Bell-state measurements and classical communication. |
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| Keywords: | quantum key distribution W state Bell-state measurement security |
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