Optimal eavesdropping in cryptography with three-dimensional quantum states

被引：373

作者：

Bruss, D ^{[1
]}

Macchiavello, C

机构：

[1] Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

[2] Dipartimento Fis A Volta, I-27100 Pavia, Italy

[3] INFM, Unita Pavia, I-27100 Pavia, Italy

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.88.127901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study optimal eavesdropping in quantum cryptography with three-dimensional systems, and show that this scheme is more secure against symmetric attacks than protocols using two-dimensional states. We generalize the according eavesdropping transformation to arbitrary dimensions, and discuss the connection with optimal quantum cloning.

引用

页数：4

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