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基于实时优化单光子干涉可视度的相位编码量子密钥分发
  • ISSN号：1007-6654
  • 期刊名称：《量子光学学报》
  • 时间：0
  • 分类：O431[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构：山西大学激光光谱研究所,量子光学与光量子器件国家重点实验室,山西太原030006
  • 相关基金：国家高技术研究发展计划（批准号：2011AA010801）; 国家自然科学基金（批准号：11374196;61527824;10934004;11204166）; 教育部创新团队发展计划（批准号：IRT13076）
作者： 于波, 景明勇, 胡建勇, 张国峰, 肖连团, 贾锁堂
关键词： 量子密钥分发, 干涉可视度, 单光子, 优化, quantum key distribution, interference visibility, single photons, optimization
中文摘要：

在相位编码量子密钥分发系统中,单光子干涉可视度决定了系统的成码率。本文提出一种优化单光子干涉可视度的方法,即利用遗传算法和四通道偏振控制器实时补偿单光子偏振漂移,同时利用时分复用参考光连续无复位地补偿单光子相位漂移,最终在25km光纤中实时优化的单光子干涉可视度达到98.6%,相位编码量子密钥分发系统成码率为2.2kbit/s。

英文摘要：

For the phase coding quantum key distribution system,the single photons interference visibility determines the system key rate.We have presented a robust method of real-time optimization for single photons interference visibility.The single photons polarization drift is compensated based on the genetic algorithm using the four-channel polarization controller,and the phase drift is calibrated continuously using the digital phase shifter with the time-multiplexed reference pulses.Finally in the 25 km fiber,the optimized single photons interference visibility reaches to 98.6% and the system key rate is 2.2kbit/s.

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期刊信息
  • 《量子光学学报》
  • 中国科技核心期刊
  • 主管单位:山西省科学技术协会
  • 主办单位:山西省物理学会
  • 主编：彭堃墀
  • 地址：山西坞城路92号太原山西大学光电研究所
  • 邮编：030006
  • 邮箱：qo@sxu.edu.cn
  • 电话：0351-7018917 7018853
  • 国际标准刊号：ISSN：1007-6654
  • 国内统一刊号：ISSN：14-1187/O4
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:1022