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Quantum Private Comparison Using Genuine Four-Particle Entangled States

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Abstract

In this paper, a quantum private comparison protocol is proposed based on χ-type state. According to the protocol, two parties can determine the equality of their information with the assistant of a semi-honest third party. Due to utilizing quantum superdense coding, this protocol provides a high efficiency and capacity. Moreover, its security is also discussed.

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Authors and Affiliations

  1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Heng-Yue Jia, Qiao-Yan Wen, Yan-Bing Li & Fei Gao

  2. State Key Laboratory of Integrated Services Network, Xidian University, Xi’an, 710071, China

    Heng-Yue Jia

Authors
  1. Heng-Yue Jia
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  2. Qiao-Yan Wen
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  3. Yan-Bing Li
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  4. Fei Gao
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Corresponding author

Correspondence to Heng-Yue Jia.

Additional information

This work is supported by NSFC (Grant Nos. 60873191, 60903152, 61003286, 60821001), SRFDP (Grant Nos. 200800131016, 20090005110010), Beijing Nova Program (Grant No. 2008B51), Key Project of Chinese Ministry of Education (Grant No. 109014) Bejing Natural Science Foundation (Grant No. 4112040) the Fundamental Research Funds for the Central Universities (Grant Nos. BUPT2011YB01, BUPT2011RC0505).

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Jia, HY., Wen, QY., Li, YB. et al. Quantum Private Comparison Using Genuine Four-Particle Entangled States. Int J Theor Phys 51, 1187–1194 (2012). https://doi.org/10.1007/s10773-011-0994-5

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  • DOI: https://doi.org/10.1007/s10773-011-0994-5

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