中国物理B ›› 2006, Vol. 15 ›› Issue (7): 1421-1424.doi: 10.1088/1009-1963/15/7/006

• GENERAL • 上一篇    下一篇

Scheme for sharing classical information via tripartite entangled states

薛正远, 易佑民, 曹卓良   

  1. Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education,and School of Physics and Material Science, Anhui University, Hefeim 230039, China
  • 收稿日期:2006-01-18 修回日期:2006-04-10 出版日期:2006-07-20 发布日期:2006-07-20
  • 基金资助:
    Project supported by Anhui Provincial Natural Science Foundation, China (Grant No 03042401), the Key Program of the Education Department of Anhui Province, China (Grant Nos 2002kj029zd and 2006kj070A), and the Talent Foundation of Anhui University,China.

Scheme for sharing classical information via tripartite entangled states

Xue Zheng-Yuan (薛正远), Yi You-Min (易佑民), Cao Zhuo-Liang (曹卓良)   

  1. Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education,and School of Physics and Material Science, Anhui University, Hefeim 230039, China
  • Received:2006-01-18 Revised:2006-04-10 Online:2006-07-20 Published:2006-07-20
  • Supported by:
    Project supported by Anhui Provincial Natural Science Foundation, China (Grant No 03042401), the Key Program of the Education Department of Anhui Province, China (Grant Nos 2002kj029zd and 2006kj070A), and the Talent Foundation of Anhui University,China.

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摘要： We investigate schemes for quantum secret sharing and quantum dense coding via tripartite entangled states. We present a scheme for sharing classical information via entanglement swapping using two tripartite entangled GHZ states. In order to throw light upon the security affairs of the quantum dense coding protocol, we also suggest a secure quantum dense coding scheme via W state by analogy with the theory of sharing information among involved users.

Abstract: We investigate schemes for quantum secret sharing and quantum dense coding via tripartite entangled states. We present a scheme for sharing classical information via entanglement swapping using two tripartite entangled GHZ states. In order to throw light upon the security affairs of the quantum dense coding protocol, we also suggest a secure quantum dense coding scheme via W state by analogy with the theory of sharing information among involved users.

Key words: quantum secret sharing, quantum dense coding, tripartite entangled state

中图分类号:  (Entanglement and quantum nonlocality)

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