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Experimental Quantum Voting Using Photonic Greenberger-Horne-Zeilinger States
Phys. Rev. Lett. 137, 060802 – Published 7 August, 2026
DOI: https://doi.org/10.1103/jlvb-t2xl
Abstract
Quantum communication protocols seek to leverage the unique properties of quantum systems for coordination or communication tasks, usually with guarantees of security or anonymity that exceed what is possible classically. One promising domain of application is elections, where strong such guarantees are essential to ensure legitimacy. We experimentally implement a recently proposed election protocol from Centrone et al. [Quantum protocol for electronic voting without election authorities, Phys. Rev. Appl. 18, 014005 (2022)] designed such that no one, including a potential central authority, can know the preferred candidate of any voter other than themself. We conduct a four-party election, generating and distributing four-partite GHZ states with fidelity and successfully recording voters’ intentions of the time.
Physics Subject Headings (PhySH)
Corrections
28 August, 2026
Correction: The captions for the previously published Figs. 2 and 3 were interchanged and have been fixed.
Focus
Quantum-Secure Ballots Demonstrated in the Lab
Two research teams have run small-scale demonstrations of voting protocols that could ensure election security using the principles of quantum mechanics.
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See Also
Experimental Quantum Electronic Voting
Article Text
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