Antidots measure anyonic charge in graphene

Anyons are fractionally charged quasiparticles of the quantum Hall effect, and could one day power topological quantum computers. Trapping and measuring anyons remains difficult, but quasiparticle charges have now been measured using a gate-defined antidot in bilayer graphene. For hole-conjugate states, the parity of downstream integer edge modes sets the observed charge. This is a preview of subscription content, access via your institution Access options Access through your institution Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any time Learn more Subscribe to this journal Receive 12 print issues and online access $259.00 per year only $21.58 per issue Learn more Buy this articlePurchase on SpringerLinkInstant access to the full article PDF.USD 39.95Prices may be subject to local taxes which are calculated during checkout Fig. 1: Antidot device and measurement of fractional charge. Subjects Electronic properties and materials Quantum Hall ReferencesNayak, C., Simon, S. H., Stern, A., Freedman, M. & Das Sarma, S. Non-Abelian anyons and topological quantum computations. Rev. Mod. Phys. 80, 1083–1159 (2008). A review article about non-Abelian anyons and how braiding them could realize fault-tolerant topological quantum computation.Article ADS MathSciNet Google Scholar Glattli, D. C. Quantum shot noise of conductors and general noise measurement methods. Eur. Phys. J. Spec. Top. 172, 163–179 (2009). This review article covers experimental techniques for measuring current fluctuations, including methods for fractional charge detection.Article Google Scholar Dean, C., Kim, P., Li, J. I. A. & Young, A. in Fractional Quantum Hall Effects: New Developments (eds Halperin, B. I & Jain, J. K.) 317–375 (World Scientific, 2020). This book chapter reviews progress in understanding the fractional quantum Hall effects in graphene.Sim, H.-S., Kataoka, M. & Ford, C. J. B. Electron interactions in an antidot in the integer quantum Hall regime. Phys. Rep. 456, 127–165 (2008). A review article that presents the physics of the quantum Hall antidot.Article ADS Google Scholar Goldman, V. J. & Su, B. Resonant tunneling in the quantum Hall regime: Measurement of fractional charge. Science 267, 1010–1012 (1995). This paper reports the measurement of fractional charge in the FQH effect.Article ADS Google Scholar Download referencesAdditional informationPublisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.This is a summary of: Di Luca, M. et al. Quantum Hall antidot as a fractional coulombmeter. Nat. Phys. https://doi.org/10.1038/s41567-026-03412-2 (2026).Rights and permissionsReprints and permissionsAbout this articleCite this article Antidots measure anyonic charge in graphene. Nat. Phys. (2026). https://doi.org/10.1038/s41567-026-03428-8Download citationPublished: 21 August 2026Version of record: 21 August 2026DOI: https://doi.org/10.1038/s41567-026-03428-8Share this articleAnyone you share the following link with will be able to read this content:Get shareable linkSorry, a shareable link is not currently available for this article.Copy shareable link to clipboard Provided by the Springer Nature SharedIt content-sharing initiative Quantum Hall antidot as a fractional coulombmeter Mario Di LucaEmily HajigeorgiouMitali Banerjee Nature Physics Article Open Access 14 Aug 2026