Signatures of fractional Hall quasiparticles in moments of current through an antidot

Matteo Merlo

Universita' di Genova


The statistics of tunneling current is studied in a fractional quantum Hall antidot geometry. A comparison between Fano factor and skewness is proposed to distinguish the charge of the carriers irrespectively of non-universal exponents in single-quasiparticle propagators. Positive correlations are obtained in the shot noise limit of the Fano factor, and possible experimental consequences are outlined.