Experimental quantum conference key agreement

Joseph Ho, Massimilliano Proietti, Federico Grasselli, Peter Barrow, Mehul Malik, Alessandro Fedrizzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We report a proof-of-principle demonstration of four-party quantum conference agreement using photonic GHZ (Greenberger-Horne-Zeilinger) states transmitted in fiber. Our results demonstrate the viability of multi-user entangled-based quantum key distribution beyond the two-party paradigm.

Original languageEnglish
Title of host publicationCLEO: QELS_Fundamental Science 2021
PublisherOPTICA Publishing Group
ISBN (Electronic)9781943580910
Publication statusPublished - 9 May 2021
EventCLEO: QELS_Fundamental Science 2021 - Virtual, Online, United States
Duration: 9 May 202114 May 2021


ConferenceCLEO: QELS_Fundamental Science 2021
Abbreviated titleQELS 2021
Country/TerritoryUnited States
CityVirtual, Online

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics


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