中国物理B ›› 2007, Vol. 16 ›› Issue (8): 2215-2218.doi: 10.1088/1009-1963/16/8/010

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An efficient quantum key distribution protocol with orthogonal product states

杨宇光1, 温巧燕2   

  1. (1)College of Computer Science and Technology, Beijing University of Technology, Beijing 100022, China；State Key Laboratory of Information Security (Graduate School of Chinese Academy of Sciences), Beijing 100022, China; (2)School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2006-11-30 修回日期:2007-01-24 出版日期:2007-08-20 发布日期:2007-08-20
  • 基金资助:
    Project supported by the National High Technology Development Program of China (Grant Nos 2006AA01Z419 and 2006AA01Z440), the Major Program of the National Natural Science Foundation of China (Grant No 90604023), the National Research Foundation for the D

An efficient quantum key distribution protocol with orthogonal product states

Yang Yu-Guang(杨宇光)a)b) and Wen Qiao-Yan(温巧燕)c)   

  1. a College of Computer Science and Technology, Beijing University of Technology, Beijing 100022, Chinab State Key Laboratory of Information Security (Graduate School of Chinese Academy of Sciences), Beijing 100022, China; c School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2006-11-30 Revised:2007-01-24 Online:2007-08-20 Published:2007-08-20
  • Supported by:
    Project supported by the National High Technology Development Program of China (Grant Nos 2006AA01Z419 and 2006AA01Z440), the Major Program of the National Natural Science Foundation of China (Grant No 90604023), the National Research Foundation for the D

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摘要： An efficient quantum key distribution (QKD) protocol with orthogonal product states in the 3 \otimes 3 Hilbert space is presented. The sender, Alice, disorders the orthogonal product state sequence and sends it to Bob. After Alice has published the matching information of the particle sequence, Bob recovers the correct correspondences and makes an orthogonal measurement on the orthogonal product states to obtain the information sent by Alice. Finally, security analysis is also made.

关键词: quantum key distribution, orthogonal product state, orthogonal basis measurement

Abstract: An efficient quantum key distribution (QKD) protocol with orthogonal product states in the 3 $\otimes$ 3 Hilbert space is presented. The sender, Alice, disorders the orthogonal product state sequence and sends it to Bob. After Alice has published the matching information of the particle sequence, Bob recovers the correct correspondences and makes an orthogonal measurement on the orthogonal product states to obtain the information sent by Alice. Finally, security analysis is also made.

Key words: quantum key distribution, orthogonal product state, orthogonal basis measurement

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.65.Ta (Foundations of quantum mechanics; measurement theory) 03.67.Lx (Quantum computation architectures and implementations)