Private entanglement over arbitrary distances, even using noisy apparatus

被引：23

作者：

Aschauer, H ^{[1
]}

Briegel, HJ ^{[1
]}

机构：

[1] Univ Munich, D-80333 Munich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.88.047902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We give a security proof of quantum cryptography based entirely on entanglement purification. Our proof applies to all possible attacks (individual and coherent). It implies the security of cryptographic keys distributed with the help of entanglement-based quantum repeaters. We prove the security of the obtained quantum channel which may not be used only for quantum key distribution, but also for secure, albeit noisy, transmission of quantum information.

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页码：4 / 479024

页数：4

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