title: Current Correlations from a Mesoscopic Anyon Collider.
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.
authors.affiliation: Institut für Theoretische Physik, Universität Leipzig, D-04009 Leipzig, Germany.|Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: Bernd
authors.initials: B
authors.lastname: Rosenow
authors.affiliation: Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA.|Institute for Theoretical Physics, ETH Zurich, CH-8093 Zurich, Switzerland.
authors.forename: Ivan P
authors.initials: IP
authors.lastname: Levkivskyi
authors.affiliation: Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: Bertrand I
authors.initials: BI
authors.lastname: Halperin