MULTIPARTY QUANTUM SECRET SHARING SCHEME OF CLASSICAL MESSAGES BY SWAPPING QUDIT-STATE ENTANGLEMENT

Zhan-Jun Zhang (), Yi-Min Liu, Ming Fang and Dong Wang
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Zhan-Jun Zhang: Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education of China, School of Physics and Material Science, Anhui University, Hefei 230039, China;
Yi-Min Liu: Department of Physics, Shaoguan University, Shaoguan 512005, China
Ming Fang: Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education of China, School of Physics and Material Science, Anhui University, Hefei 230039, China
Dong Wang: Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education of China, School of Physics and Material Science, Anhui University, Hefei 230039, China

International Journal of Modern Physics C (IJMPC), 2007, vol. 18, issue 12, 1885-1901

Abstract: A multiparty quantum secret sharing scheme based on Bell-state entanglement swapping [Z. J. Zhang and Z. X. Man (2005)] is generalized to the qutrit case, that is, with qutrit-pair entangled states we propose a multiparty quantum secret sharing (QSS) scheme of classical messages by swapping qutrit-state entanglement. The security of our scheme is analyzed and confirmed with respect to some attacks. Compared to the scheme being generalized, this scheme possesses the distinct advantages of higher code capacity and higher security. Moreover, the generalization of the scheme to the qudit case is also outined.

Keywords: Quantum secret sharing; quantum entanglement swapping; qutrit-pair entangled state; qudit-pair entangled state; projective measurement; 03.67.Dd (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0129183107011807

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