Practical Quantum Coin Flipping

Anna Pappa, André Chailloux, Eleni Diamanti, Iordanis Kerenidis

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

In this article we show for the first time that quantum coin flipping with security guarantees that are strictly better than any classical protocol is possible to implement with current technology. Our protocol takes into account all aspects of an experimental implementation like losses, multi-photon pulses emitted by practical photon sources, channel noise, detector dark counts and finite quantum efficiency. We calculate the abort probability when both players are honest, as well as the probability of one player forcing his desired outcome. For channel length up to 21 km, we achieve a cheating probability that is better than in any classical protocol. Our protocol is easy to implement using attenuated laser pulses, with no need for entangled photons or any other specific resources.
Original languageEnglish
Number of pages4
JournalPhysical Review A
DOIs
Publication statusPublished - 6 Jun 2011

Keywords / Materials (for Non-textual outputs)

  • quant-ph

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