摘要
简要介绍了基于单光子几种量子密钥分配协议,从基于单光子偏振和基于光子纠缠两个方面综述了国内外量子理论和实验现状,说明了自由空间量子密钥分配面临的挑战,最后提出了全球量子通信存在的问题及发展方向。
This paper analyzes several protocols for quantum key distribution based on single photon, summarizes the research status on theory and experiment based on photon polarization state and entangled state, illustrate the challenge of the free-space quantum key distribution, and finally advances the problems and future of global quantum communication.
出处
《光通信技术》
CSCD
北大核心
2008年第6期41-43,共3页
Optical Communication Technology
关键词
自由空间
量子密钥分配
量子密码协议
flee-space
quantum key distribution
quantum cryptography protocol