Quantum cloning, eavesdropping and Bell's inequality

被引：86

作者：

Gisin, N

Huttner, B

机构：

[1] Group of Applied Physics, University of Geneva, CH 1211 Geneva 4

来源：

PHYSICS LETTERS A | 1997年 / 228卷 / 1-2期

关键词：

D O I：

10.1016/S0375-9601(97)00083-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze various eavesdropping strategies on a quantum cryptographic channel. We present the optimal strategy for an eavesdropper restricted to a two-dimensional probe, interacting on-line with each transmitted signal. The link between safety of the transmission and the violation of Bell's inequality is discussed. We also use a quantum copying machine for eavesdropping and for broadcasting quantum information. (C) 1997 Elsevier Science B.V.

引用

页码：13 / 21

页数：9

共 15 条

[1]

Bell JS., 1987, Speakable and unspeakable in quantum mechanics

[2]

Bennett C. H., 1992, Journal of Cryptology, V5, P3, DOI 10.1007/BF00191318

[3] Concentrating partial entanglement by local operations [J].