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)
Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education,and School of Physics and Material Science, Anhui University, Hefeim 230039, China
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.
Received: 18 January 2006
Revised: 10 April 2006
Accepted manuscript online:
(Entanglement measures, witnesses, and other characterizations)
Fund: 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.
Cite this article:
Xue Zheng-Yuan (薛正远), Yi You-Min (易佑民), Cao Zhuo-Liang (曹卓良) Scheme for sharing classical information via tripartite entangled states 2006 Chinese Physics 15 1421
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