Performance of two quantum-key-distribution protocols

  title={Performance of two quantum-key-distribution protocols},
  author={Chi-Hang Fred Fung and Kiyoshi Tamaki and Hoi-Kwong Lo},
We compare the performance of Bennett-Brassard 1984 BB84 and Scarani-Acin-Ribordy-Gisin 2004 SARG04 protocols, the latter of which was proposed by V. Scarani et al. Phys. Rev. Lett. 92, 057901 2004 . Specifically, in this paper, we investigate the SARG04 protocol with two-way classical communications and the SARG04 protocol with decoy states. In the first part of the paper, we show that the SARG04 scheme with two-way communications can tolerate a higher bit error rate 19.4% for a one-photon… CONTINUE READING
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