中国物理B ›› 2006, Vol. 15 ›› Issue (10): 2252-2255.doi: 10.1088/1009-1963/15/10/011

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Secret sharing of quantum information via entanglement swapping

张英俏1, 张　寿1, 金星日2   

  1. (1)Center for Condensed-Matter Science and Technology,Harbin Institute of Technology, Harbin 150001, China;Department of Physics, College of Science, Yanbian University, Yanji 133002, China; (2)Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • 收稿日期:2005-07-25 修回日期:2006-05-23 出版日期:2006-10-20 发布日期:2006-10-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60261002) and the Science Foundation of Yanbian University (Grant No 2005-20).

Secret sharing of quantum information via entanglement swapping

Zhang Ying-Qiao(张英俏)a)b)†, Jin Xing-Ri(金星日)b), and Zhang Shou(张寿)a)b)‡   

  1. a Center for Condensed-Matter Science and Technology,Harbin Institute of Technology, Harbin 150001, China; b Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • Received:2005-07-25 Revised:2006-05-23 Online:2006-10-20 Published:2006-10-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60261002) and the Science Foundation of Yanbian University (Grant No 2005-20).

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摘要： Based on entanglement swapping, a scheme for the secret sharing of an arbitrary two-particle entangled state is proposed. If the controllers do not co-operate with the eavesdropper, the eavesdropper's successful probability decreases with the number of the controllers increasing. In addition, only the Bell-state measurements are required to realize the secret sharing scheme.

关键词: secret sharing, two-particle entangled state, Bell-state measurements, entanglement swap-\\hbox{\hskip 1.9cm}ping

Abstract: Based on entanglement swapping, a scheme for the secret sharing of an arbitrary two-particle entangled state is proposed. If the controllers do not co-operate with the eavesdropper, the eavesdropper's successful probability decreases with the number of the controllers increasing. In addition, only the Bell-state measurements are required to realize the secret sharing scheme.

Key words: secret sharing, two-particle entangled state, Bell-state measurements, entanglement swap-ping

中图分类号:  (Quantum communication)

  • 03.67.Hk
02.50.Cw (Probability theory) 03.65.Ta (Foundations of quantum mechanics; measurement theory) 03.65.Ud (Entanglement and quantum nonlocality) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)