| 束缚纠缠态量子秘密共享的不安全性分析 |
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| 引用本文： | 於亚飞,张智明.束缚纠缠态量子秘密共享的不安全性分析[J].光学学报,2008,28(3):556-559. |
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| 作者姓名： | 於亚飞 张智明 |
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| 作者单位： | 华南师范大学信息光电子科技学院,广东省光子信息技术重点实验室,广东,广州,510006 |
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| 摘 要： | 分析了以Smolin束缚纠缠态作为通道量子态的量子秘密共享方案的安全性.给出了一个简单的来自通信方内部的截获重发攻击策略,这个攻击策略是依赖比对单量子比特测量结果的窃听检测程序所不能检测出来的.结果表明,仅以束缚纠缠Smolin态作为通道量子态的量子秘密共享方案对于来自内部的窃听攻击不是无条件的.
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| 关 键 词： | 量子光学 量子信息 量子秘密共享 束缚纠缠Smolin态 独立相干攻击 |
| 收稿时间： | 2007/7/11 |
Analysis on Unsecurity of Quantum Secret Sharing Based on Smolin Bound Entangled States |
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| Yu Yafei,Zhang Zhiming.Analysis on Unsecurity of Quantum Secret Sharing Based on Smolin Bound Entangled States[J].Acta Optica Sinica,2008,28(3):556-559. |
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| Authors: | Yu Yafei Zhang Zhiming |
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| Abstract: | We analyze the security of quantum secret sharing (QSS) with bound entangled Smolin states as the channel quantum state. An intercept-resend strategy of the inner legal communicators is proposed to attack the security without being detected by the checking procedure compared with the results of single-qubit measurement. It is concladed that QQS only with Smolin bound entangled states as the channel quantum state is not unconditionally secure. |
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| Keywords: | quantum optics quantum information quantum secret sharing bound entangled Smolin state coherent individual attack |
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