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arXiv 1503.00612quant-ph
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基于互无偏基的量子密钥分发的时间导向和抗个体攻击的安全性

Temporal steering and security of quantum key distribution with mutually-unbiased bases against individual attacks

Karol Bartkiewicz, Antonín Černoch, Karel Lemr, Adam Miranowicz, Franco Nori

摘要:

时间转向是爱因斯坦-波多尔斯基-罗森转向的时间模拟,指的是量子系统的初始状态和最终状态之间的时间量子相关。通过分析时间导向不等式与平均量子比特误码率的关系,揭示了时间导向与量子克隆之间的相互作用,从而保证了基于相互无偏基的量子密钥分发的安全性.这里分析的密钥分布包括Bennett-Bennard 1984协议(BB84)和Bennett的六态协议(B 98)。此外,我们定义了一个时间可操纵的权重,这使我们能够确定一种monogamy的时间相关性,这是必不可少的量子密码学和有用的分析各种情况下的量子因果关系。

英文摘要:

Temporal steering, which is a temporal analogue of Einstein-Podolsky-Rosen steering, refers to temporal quantum correlations between the initial and final state of a quantum system. Our analysis of temporal steering inequalities in relation to the average quantum bit error rates reveals the interplay between temporal steering and quantum cloning, which guarantees the security of quantum key-distribution based on mutually-unbiased bases against individual attacks. The key distributions analyzed here include the Bennett-Brassard 1984 protocol (BB84) and the six-state 1998 protocol by Bruss (B98). Moreover, we define a temporal steerable weight, which enables us to identify a kind of monogamy of temporal correlations that is essential to quantum cryptography and useful for analyzing various scenarios of quantum causality.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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