Work

Experimental Quantum Voting Using Photonic Greenberger-Horne-Zeilinger States

Year: 2026

Type: article

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)PRAHB22331-701910.1103/PhysRevApplied.18.014005] 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 ≈89% fidelity and successfully recording voters' intentions ≈87% of the time.

Source: Physical Review Letters

DOI: 10.1103/jlvb-t2xl

Authors: F. Joseph Marcellino, Mingsong Wu, Rob Thew

Institution: University of Geneva

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

SDG: Peace, justice, and strong institutions

Open Access status: green

Funders: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, General Secretariat for Research and Technology