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Efficient bidirectional quantum secure communication with two-photon entanglement

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Abstract

An efficient bidirectional quantum secure communication protocol is proposed with two-photon entanglement. Compared with the previous protocol proposed by Shi et al., our protocol can achieve higher efficiency. Meanwhile, for the same length secret messages, only half of entangled photon pairs need to be prepared in our protocol. And the number of classical bits in public classical communication is also a half of that in the previous protocol. Moreover, the information leakage does not exist in our scheme.

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Acknowledgments

This work was supported by the National Science Foundation of China under Grant No. 61072140, the 111 Project under Grant No. B08038, the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No. 20100203110003, and a Project of Shandong Province Higher Educational Science and Technology Program under Grant No. J13LN60.

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Authors and Affiliations

  1. State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, 710071, China

    Xun-Ru Yin, Wen-Ping Ma & Dong-Su Shen

  2. School of Science, Northwestern Polytechnical University, Xi’an, 710072, China

    Wei-Yan Liu

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  1. Xun-Ru Yin
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  2. Wen-Ping Ma
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  3. Wei-Yan Liu
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  4. Dong-Su Shen
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Correspondence to Xun-Ru Yin.

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Yin, XR., Ma, WP., Liu, WY. et al. Efficient bidirectional quantum secure communication with two-photon entanglement. Quantum Inf Process 12, 3093–3102 (2013). https://doi.org/10.1007/s11128-013-0584-y

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  • DOI: https://doi.org/10.1007/s11128-013-0584-y

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