On the information-splitting essence of two types of quantum key distribution protocols

被引：40

作者：

Gao, Fei ^{[1
]}

Guo, Fen-Zhuo

Wen, Qiao-Yan

Zhu, Fu-Chen

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

[2] Xidian Univ, State Key Lab Integrated Serv Network, Xian 710071, Peoples R China

[3] Natl Lab Modern Commun, Chengdu 610041, Peoples R China

来源：

PHYSICS LETTERS A | 2006年 / 355卷 / 03期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

quantum key distribution; quantum cryptography entanglement;

D O I：

10.1016/j.physleta.2006.02.027

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

With the help of a simple quantum key distribution (QKD) scheme, we discuss the relation between BB84-type protocols and two-step-type ones. It is shown that they have the same essence, that is, information splitting. The choice of an orthogonal carrier or a nonorthogonal carrier, which looks like the main difference between these two types of protocols, is not an important, even not a very explicit matter. This result is instructive for related scheme designing and security analyzing. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：172 / 175

页数：4