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    Anyon Braiding on the Single Edge of a Fractional Quantum Hall State

    Flavio Ronetti1, Noé Demazure1, Jérôme Rech1, Thibaut Jonckheere1, Benoît Grémaud1, Laurent Raymond1, Masayuki Hashisaka2, Takeo Kato2, and Thierry Martin1

    Phys. Rev. Lett. 135, 146601 – Published 30 September, 2025

    DOI: https://doi.org/10.1103/yq1x-kxgm

    Abstract

    Anyons are quasiparticles with fractional statistics, bridging between fermions and bosons. We propose an experimental setup to measure the statistical angle of topological anyons emitted from a quantum point contact (QPC) source. The setup involves an Ω-shaped junction along a fractional quantum Hall liquid edge, formed by defining a droplet with two negatively biased gates. In the weak tunneling regime, we calculate the charge current, showing its time evolution depends solely on the anyons’ statistical properties, with temperature and scaling dimension affecting only the constant prefactor. We compute the cross-correlation between the anyon current transmitted from the source and the current after the Ω junction, providing a direct method to detect anyon braiding statistics.

    Physics Subject Headings (PhySH)

    Corrections

    6 October, 2025

    Correction: The omission of a support statement in the Acknowledgments has been fixed.

    See Also

    Probing anyon statistics on a single-edge loop in the fractional quantum Hall regime

    Flavio Ronetti, Noé Demazure, Jérôme Rech, Thibaut Jonckheere, Benoît Grémaud, Laurent Raymond, Masayuki Hashisaka, Takeo Kato, and Thierry Martin
    Phys. Rev. B 112, 125166 (2025)

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