EAVESDROPPING ON QUANTUM-CRYPTOGRAPHICAL SYSTEMS

被引：163

作者：

EKERT, AK

HUTTNER, B

PALMA, GM

PERES, A

机构：

[1] UNIV OXFORD, DEPT PHYS, OXFORD OX1 4JD, ENGLAND

[2] UNIV OXFORD, CLARENDON LAB, DEPT PHYS, OXFORD OX1 4JD, ENGLAND

[3] UNIV PALERMO, IST FIS, I-90123 PALERMO, ITALY

[4] TECHNION ISRAEL INST TECHNOL, DEPT PHYS, IL-32000 HAIFA, ISRAEL

来源：

PHYSICAL REVIEW A | 1994年 / 50卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.50.1047

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum cryptography cannot prevent eavesdropping, but any eavesdropping attempt can be detected by the legitimate users of the communication channel. This is because eavesdropping affects the quantum state of the information carriers and results in an abnormal error rate. In this paper, we analyze various eavesdropping techniques, which may be either translucent or opaque to the transmitted photons, and we estimate the error rate above which the key distribution is deemed unsafe and should be abandoned.

引用

页码：1047 / 1056

页数：10

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