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 droplet 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 junction, providing a direct method to detect anyon braiding statistics.
@article{arxiv.2503.17008,
title = {Anyon braiding on the single edge of a fractional quantum Hall state},
author = {Flavio Ronetti and Noé Demazure and Jérôme Rech and Thibaut Jonckheere and Benôit Grémaud and Laurent Raymond and Masayuki Hashisaka and Takeo Kato and Thierry Martin},
journal= {arXiv preprint arXiv:2503.17008},
year = {2026}
}
Comments
5 pages, 3 figures. Accepted for publication in Physical Review Letters. Supplemental material available at arXiv:2506.09774. Comments are very welcome!