Arbitrarily long distance quantum communication using inspection and power insertion

被引：40
|
作者：
Wang WanYing [1 ,2 ]
Wang Chuan [1 ,2 ]
Zhang GuangYu [1 ,3 ]
Long GuiLu [1 ,2 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
[3] Harbin Univ Sci & Technol, Coll Appl Sci, Harbin 150080, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2009年 / 54卷 / 01期
基金：
中国国家自然科学基金;
关键词：
inspection and power insertion; long distance quantum communication; quantum key distribution; quantum secure direct communication; SECURE DIRECT COMMUNICATION; KEY DISTRIBUTION; SCHEME;
D O I：
10.1007/s11434-008-0581-1
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The biggest obstacle for long distance quantum communication is the channel loss and the channel noise on photons. In this paper, a method to solve this problem was analyzed using inspection and power insertion (IPI). It is proved that quantum communication may be established over arbitrarily long distance using this technology. The amount of resources required is a polynomial function of the distance. IPI is proposed as a general technique to prolong quantum secure direct communication where secret messages are transmitted directly over a quantum channel.
引用
收藏
页码：158 / 162
页数：5
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