Quantum key distribution using polarization and frequency hyperentangled photons

被引:15
|
作者
Wang, Chuan [1 ,2 ,3 ,4 ]
Xiao, Li [5 ,6 ]
Wang, Wan-ying [1 ,2 ,5 ]
Zhang, Guang-yu [1 ,2 ,5 ,7 ]
Long, Gui Lu [1 ,2 ,5 ]
机构
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Key Lab Atom & Mol Sci, Beijing 100084, Peoples R China
[3] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
[4] Beijing Univ Posts & Telecommun, Key Lab Opt Commun & Lightwave Technol, Beijing 100876, Peoples R China
[5] Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
[6] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[7] Harbin Univ Sci & Technol, Coll Appl Sci, Harbin 150080, Peoples R China
基金
中国国家自然科学基金;
关键词
COMMUNICATION; CRYPTOGRAPHY; COMPUTATION;
D O I
10.1364/JOSAB.26.002072
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose a two-step quantum key distribution protocol using frequency and polarization hyperentangled photons. In this protocol, key information is encoded by unitary operations on the hyperentangled photons, and the hyperentangled photons are sent in two steps. We also designed a state measurement device and analyzed the security of the protocol. (C) 2009 Optical Society of America
引用
收藏
页码:2072 / 2076
页数:5
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