基于频率纠缠源的高精度时间同步技术进展  

Progresses of high-precision clock synchronization technology based on frequency entangled source

作　　者：魏亚旭 李建胜[1] 李广云[1] WEI Yaxu;LI Jiansheng;LI Guangyun(Institute of Geospatial Information,Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学地理空间信息学院,郑州450001

出　　处：《导航定位学报》2023年第3期1-7,共7页Journal of Navigation and Positioning

摘　　要：为了进一步提高测绘导航领域的时间同步精度,研究论述可以突破标准量子极限的量子时间同步技术:概述频率纠缠源制备技术以及单光子探测技术的研究现状;并重点介绍基于不同量子时间同步协议的时间同步方案研究进展;最后对基于频率纠缠源的时间同步技术的发展趋势及其在测绘导航领域的潜在应用进行分析与展望。In order to further improve the precision of time synchronization in mapping and navigation field,the paper researched and discussed the quantum clock synchronization technology which can break through the standard quantum limit:the research statuses of frequency entanglement source preparation technology and single photon detection technology were outlined;and the research progresses of clock synchronization schemes based on different quantum time synchronization protocols were introduced;finally,the future development directions of quantum clock synchronization technology based on frequency entangled source and its possible applications in the field of surveying and mapping navigation were analyzed and prospected.

关 键 词：频率纠缠源 自发参量下转换 单光子探测器 时间同步协议 量子时间同步 

分 类 号：O436[机械工程—光学工程] P228[理学—光学]