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Delayed error verification in quantum key distribution

  • Letter
  • Quantum Information
  • Published:
Chinese Science Bulletin

Abstract

Quantum key distribution (QKD) provides an unconditional secure key generation method between two distant legitimate parties Alice and Bob based on the fundamental properties of quantum mechanics, in the presence of an eavesdropper Eve. Since key reconciliation cannot always assure that the reconciled keys between Alice and Bob are identical, error verification is an important step in QKD. In this paper, we propose a scheme of delayed error verification using extra keys gained by privacy amplification with an arbitrarily small failure probability. The proposed scheme simplifies the post-processing procedure in QKD, which can be applied in practical QKD systems.

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Acknowledgments

This work was supported by the National Basic Research Program of China (2011CBA00200 and 2011CB921200) and the National Natural Science Foundation of China (61101137, 61201239, 61205118, and 11304397).

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Authors and Affiliations

  1. Key Laboratory of Quantum Information, CAS, University of Science and Technology of China, Hefei, 230026, China

    Chun-Mei Zhang, Xiao-Tian Song, Mo Li, Chao Wang, Hong-Wei Li, Zhen-Qiang Yin, Wei Chen & Zheng-Fu Han

  2. Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, China

    Chun-Mei Zhang, Xiao-Tian Song, Mo Li, Chao Wang, Hong-Wei Li, Zhen-Qiang Yin, Wei Chen & Zheng-Fu Han

  3. Department of Computer Science, Faculty of Science and Technology, Phranakhon Rajabhat University, Bangkok, 10220, Thailand

    Patcharapong Treeviriyanupab

Authors
  1. Chun-Mei Zhang
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  2. Xiao-Tian Song
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  3. Patcharapong Treeviriyanupab
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  4. Mo Li
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  5. Chao Wang
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  6. Hong-Wei Li
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  7. Zhen-Qiang Yin
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  8. Wei Chen
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  9. Zheng-Fu Han
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Corresponding authors

Correspondence to Hong-Wei Li, Zhen-Qiang Yin or Wei Chen.

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Cite this article

Zhang, CM., Song, XT., Treeviriyanupab, P. et al. Delayed error verification in quantum key distribution. Chin. Sci. Bull. 59, 2825–2828 (2014). https://doi.org/10.1007/s11434-014-0446-8

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  • DOI: https://doi.org/10.1007/s11434-014-0446-8

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