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Efficient decoy-state quantum key distribution with quantified security

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Published copy (DOI)


  • M. Lucamarini
  • K. A. Patel
  • J. F. Dynes
  • B. Fröhlich
  • A. W. Sharpe
  • A. R. Dixon
  • Z. L. Yuan
  • R. V. Penty
  • A. J. Shields


Publication details

JournalOptics Express
DatePublished - 21 Oct 2013
Issue number21
Number of pages16
Pages (from-to)24550-24565
Original languageEnglish


We analyse the finite-size security of the efficient Bennett-Brassard 1984 protocol implemented with decoy states and apply the results to a gigahertz-clocked quantum key distribution system. Despite the enhanced security level, the obtained secure key rates are the highest reported so far at all fibre distances.

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