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arXiv quant-ph/0702187quant-ph
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隐私放大、私人国家与不确定原理

Privacy Amplification, Private States, and the Uncertainty Principle

Joseph M. Renes, Jean-Christian Boileau

摘要:

我们证明了在量子密钥分发中处理隐私放大的三种主要方法,即隐私态蒸馏、经典隐私放大和通过不确定原理,是等价和可互换的。通过采用基于不确定原理的安全性证明,构造了一个新的隐私状态提取协议,并证明了该协议与标准的经典隐私放大协议是一致的.这种方法的基础是一个新的特征的私人国家,与他们的标准制定的不确定原理,这给了一个更多的物理理解的安全量子密钥分发。

英文摘要:

We show that three principle means of treating privacy amplification in quantum key distribution, private state distillation, classical privacy amplification, and via the uncertainty principle, are equivalent and interchangeable. By adapting the security proof based on the uncertainty principle, we construct a new protocol for private state distillation which we prove is identical to standard classical privacy amplification. Underlying this approach is a new characterization of private states, related to their standard formulation by the uncertainty principle, which gives a more physical understanding of security in quantum key distribution.

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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