Time-domain braiding of anyons.

Authors

M Ruelle, E Frigerio, E Baudin, J-M Berroir, B Plaçais, B Grémaud, T Jonckheere, T Martin, J Rech, A Cavanna, U Gennser, Y Jin, G Ménard, G Fève

Published in

Science (New York, N.Y.). Volume 389. Issue 6755. Pages eadm7695. Jul 03, 2025. Epub Jul 03, 2025.

Abstract

Anyons are quasiparticles that keep a robust memory of particle exchanges via a braiding phase factor. When an anyon excitation is emitted toward a quantum point contact (QPC) in a fractional quantum Hall (FQH) fluid, this memory translates into tunneling events that may occur long after the anyon excitation has exited the QPC. In this work, we used triggered anyon pulses incident on a QPC in a filling factor ν = 1/3 FQH fluid to investigate anyon tunneling in the time domain. We observed that braiding increases the tunneling timescale, which is set by the temperature and the anyon scaling dimension that characterizes the edge-state dynamics. Our experiment introduces time-domain measurements for characterizing the braiding phase and scaling dimension of anyons.

PMID:
40608927
Bibliographic data and abstract were imported from PubMed on 04 Jul 2025.

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