Experimental quantum conference key agreement

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

doi:10.1364/CLEO_QELS.2021.FF2J.5

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper FF2J.5
•https://doi.org/10.1364/CLEO_QELS.2021.FF2J.5

Experimental quantum conference key agreement

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

CLEO: QELS_Fundamental Science 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Quantum Networks (FF2J)

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J. Ho, M. Proietti, F. Grasselli, P. Barrow, M. Malik, and A. Fedrizzi, "Experimental quantum conference key agreement," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper FF2J.5.

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Abstract

We report a proof-of-principle demonstration of four-party quantum confer ence 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.

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