Current Correlations from a Mesoscopic Anyon Collider
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Updated: Mar 22, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Bernd Rosenow1,2, Ivan P Levkivskyi2,3, Bertrand I Halperin2
1Institut für Theoretische Physik, Universität Leipzig, D-04009 Leipzig, Germany.
Abstract:
Fermions and bosons are fundamental realizations of exchange statistics, which governs the probability for two particles being close to each other spatially. Anyons in the fractional quantum Hall effect are an example for exchange statistics intermediate between bosons and fermions. We analyze a mesoscopic setup in which two dilute beams of anyons collide with each other, and relate the correlations of current fluctuations to the probability of particles excluding each other spatially. While current correlations for fermions vanish, negative correlations for anyons are a clear signature of a reduced spatial exclusion as compared to fermions.
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