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Experimental plug and play quantum coin flipping

Author

Listed:
  • Anna Pappa

    (LTCI, CNRS—Télécom ParisTech
    LIAFA, CNRS—Université Paris Diderot 7)

  • Paul Jouguet

    (LTCI, CNRS—Télécom ParisTech
    SeQureNet)

  • Thomas Lawson

    (LTCI, CNRS—Télécom ParisTech)

  • André Chailloux

    (INRIA Paris-Rocquencourt, Domaine de Voluceau)

  • Matthieu Legré

    (ID Quantique SA, 3, Chemin de la Marbrerie)

  • Patrick Trinkler

    (ID Quantique SA, 3, Chemin de la Marbrerie)

  • Iordanis Kerenidis

    (LIAFA, CNRS—Université Paris Diderot 7
    Centre for Quantum Technologies, National University of Singapore)

  • Eleni Diamanti

    (LTCI, CNRS—Télécom ParisTech)

Abstract

Performing complex cryptographic tasks will be an essential element in future quantum communication networks. These tasks are based on a handful of fundamental primitives, such as coin flipping, where two distrustful parties wish to agree on a randomly generated bit. Although it is known that quantum versions of these primitives can offer information-theoretic security advantages with respect to classical protocols, a demonstration of such an advantage in a practical communication scenario has remained elusive. Here we experimentally implement a quantum coin flipping protocol that performs strictly better than classically possible over a distance suitable for communication over metropolitan area optical networks. The implementation is based on a practical plug and play system, developed by significantly enhancing a commercial quantum key distribution device. Moreover, we provide combined quantum coin flipping protocols that are almost perfectly secure against bounded adversaries. Our results offer a useful toolbox for future secure quantum communications.

Suggested Citation

  • Anna Pappa & Paul Jouguet & Thomas Lawson & André Chailloux & Matthieu Legré & Patrick Trinkler & Iordanis Kerenidis & Eleni Diamanti, 2014. "Experimental plug and play quantum coin flipping," Nature Communications, Nature, vol. 5(1), pages 1-8, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4717
    DOI: 10.1038/ncomms4717
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    Cited by:

    1. Simon Neves & Verena Yacoub & Ulysse Chabaud & Mathieu Bozzio & Iordanis Kerenidis & Eleni Diamanti, 2023. "Experimental cheat-sensitive quantum weak coin flipping," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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