中国物理B ›› 2010, Vol. 19 ›› Issue (5): 50306-050306.doi: 10.1088/1674-1056/19/5/050306

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Three-party quantum secret sharing of secure direct communication based on χ-type entangled states

杨宇光1, 曹卫锋2, 温巧燕3   

  1. (1)College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, China; (2)College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; (3)State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2009-07-14 修回日期:2009-11-04 出版日期:2010-05-15 发布日期:2010-05-15
  • 基金资助:
    Project supported by the National High-Tech Research and Development Program of China (Grant Nos.~2006AA01Z440, 2009AA012441 and 2009AA012437) and National Basic Research Program of China (Grant No.~2007CB311100), the National Natural Science Foundation of China (Grant Nos.~60873191 and 60821001), the Scientific Research Common Program of Beijing Municipal Commission of Education (Grant No.~KM200810005004), Beijing Natural Science Foundation (Grant Nos.~1093015 and 1102004), the ISN Open Foundation, Specialized Research Fund for the Doctoral Programm of Higher Education (Grant No.~20091103120014).

Three-party quantum secret sharing of secure direct communication based on $\chi$-type entangled states

Yang Yu-Guang(杨宇光)a)†, Cao Wei-Feng(曹卫锋)c), and Wen Qiao-Yan(温巧燕)b)   

  1. a College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, China; b State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; c College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
  • Received:2009-07-14 Revised:2009-11-04 Online:2010-05-15 Published:2010-05-15
  • Supported by:
    Project supported by the National High-Tech Research and Development Program of China (Grant Nos.~2006AA01Z440, 2009AA012441 and 2009AA012437) and National Basic Research Program of China (Grant No.~2007CB311100), the National Natural Science Foundation of China (Grant Nos.~60873191 and 60821001), the Scientific Research Common Program of Beijing Municipal Commission of Education (Grant No.~KM200810005004), Beijing Natural Science Foundation (Grant Nos.~1093015 and 1102004), the ISN Open Foundation, Specialized Research Fund for the Doctoral Programm of Higher Education (Grant No.~20091103120014).

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摘要： Based on $\chi $-type entangled states and the two-step protocol [Deng F G, Long G L and Liu X S 2003 {\it Phys. Rev.} A {\bf68} 042317], a quantum secret sharing protocol of secure direct communication based on $\chi$-type entangled states $\vert \chi ^{00}\rangle _{3214} $ is proposed. Using some interesting entanglement properties of this state, the agent entirety can directly obtain the secret message from the message sender only if they collaborate together. The security of the scheme is also discussed.

Abstract: Based on $\chi $-type entangled states and the two-step protocol [Deng F G, Long G L and Liu X S 2003 Phys. Rev. A 68 042317], a quantum secret sharing protocol of secure direct communication based on $\chi$-type entangled states $\vert \chi ^{00}\rangle _{3214} $ is proposed. Using some interesting entanglement properties of this state, the agent entirety can directly obtain the secret message from the message sender only if they collaborate together. The security of the scheme is also discussed.

Key words: quantum secret sharing, quantum secure direct communication, $\chi$-type entangled states

中图分类号:  (Quantum communication)

  • 03.67.Hk
03.65.Ud (Entanglement and quantum nonlocality) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)