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一类普适的量子密码相干光源
  • ISSN号：0023-074X
  • 期刊名称：《科学通报》
  • 时间：0
  • 分类：TN918[电子电信—通信与信息系统;电子电信—信息与通信工程] O436.1[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构：[1]中国科学技术大学量子信息重点实验室,合肥230026, [2]中国人民解放军信息工程大学电子技术学院,郑州450004
  • 相关基金：国家重点基础研究发展计划（编号：2009CB929600）、国家自然科学基金（批准号：10674128,60121503）、中国科学院“百人计划”和教育部高等学校博士学科点科研基金（编号：20060358043）资助项目
作者： 张胜利[1,2], 邹旭波[1], 李传锋[1], 金晨辉, 郭光灿[1]
关键词： 量子密码, 诱骗态, 配对相干态, 密钥率
中文摘要：

提出了普适量子密码相干光源的概念．在量子密码领域，弱相干态（WCP）和标记单光子态（HSPS）是目前最为常用的量子光源．但是，利用这两种光源和诱骗态（Decoy）方法相结合进行量子密钥分配时，在密钥传输的最大安全距离及中短距离密钥生成率上各有优劣．本文证明了利用标记配对相干态（HPCS）进行诱骗态编码，在保证密钥最大安全传输距离的同时，还可以提高中短距离的密钥率．另外还证明了这种特性并不局限于所使用的具体密码协议，对于BB84协议和SARG协议，HPCS＋Decoy方案均可以提供比较理想的密钥生成率．最后，给出了一个有效可行的基于HPCS源的“1信号＋2诱骗”的诱骗态编码方案．

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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,美国数学评论（网络版）,美国工程索引,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）,中国北大核心期刊（2000版）
  • 被引量:81792