| 一种新的多用户量子密钥分发方案 |
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| 引用本文： | 赵楠,裴昌幸,权东晓,孙晓楠.一种新的多用户量子密钥分发方案[J].光电子．激光,2011(9):1411-1414. |
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| 作者姓名： | 赵楠 裴昌幸 权东晓 孙晓楠 |
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| 作者单位： | 西安电子科技大学综合业务网国家级重点实验室； |
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| 基金项目： | 国家自然科学基金资助项目(61072067,60672119,60832001);高等学校学科创新引智计划资助项目(B08038);国家重点实验室专项资金资助项目(ISN1001004);中央高校基本科研费专项资金资助项目(K50510010004) |
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| 摘 要： | 提出了一种基于偏振态相位编码的多用户量子密钥分发方案。以偏振编码作为地址码以区分用户,以相位编码携带信息,具有同时调制偏振态的相位和偏振角度的特点。建立了多用户量子信道模型,通过仿真获得其安全通信距离。结果表明,本文方案不但能够有效区分多用户通信中各用户信息,而且比基于偏振编码或相位编码的量子密钥分发方案更加安全。
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| 关 键 词： | 多用户通信 偏振态相位编码 量子信道建模 安全性分析 |
A new scheme of multiuser quantum key distribution |
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| ZHAO Nan,PEI Chang-xing,QUAN Dong-xiao and SUN Xiao-nan.A new scheme of multiuser quantum key distribution[J].Journal of Optoelectronics·laser,2011(9):1411-1414. |
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| Authors: | ZHAO Nan PEI Chang-xing QUAN Dong-xiao and SUN Xiao-nan |
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| Affiliation: | (State Key Laboratory of Integrated Service Networks,Xidian University,Xi′an 710071,China) |
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| Abstract: | This paper proposes a multiuser quantum key distribution scheme,which is based on quantum state phase coding.This scheme makes the polarization code as address code to distinguish different users,and makes the phase code carry messages,so the quantum polarization and phase are modulated together.We establish a multiuser quantum channel model.Through simulation,the secure communicational distance is obtained.The results show this method is valid to separate different users′ messages,and is more secure than the one only based on quantum phase or quantum polarization. |
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| Keywords: | multiuser communication polarization state phase coding quantum channel modeling security analysis |
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