摘要
自由空间量子通信是实现全球量子通信网络的最佳方式之一.在自由空间量子通信过程中,广泛采用光子偏振态进行信息的编码和通信,要求光子偏振态必须保持一致.综述了影响自由空间量子通信光子偏振的5种因素,分析了它们对光子偏振态影响的物理机制及研究方法,对自由空间量子通信的光子偏振变化规律及其补偿机制的研究具有重要的借鉴意义.
Free-space quantum communication is one of the best ways to realize the global quantum com- munication network. In the process of free-space quantum communication, the photon polarization states are widely utilized for information encoding and communicating while the polarization states should be preserved. Five kinds of aspects are reviewed which have impact on the photon polarization states in free- space quantum communication. The corresponding physical mechanism and investigation methods are an- alyzed. Positive effect is shown by study of photon polarization states' variation and compensation.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2013年第2期1-9,19,共10页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金项目(61102024)
中央高校基本科研业务费专项项目(2012RC0401)
关键词
自由空间量子通信
大气信道
偏振
free-space quantum communication
atmospheric channel
polarization