QUASI FERMI DISTRIBUTION AND RESONANT-TUNNELING OF QUASI-PARTICLES WITH FRACTIONAL CHARGES

We study the resonant tunneling of quasiparticles (anyons) through an impurity between the edges of a fractional quantum Hall sample. These quasiparticles are anyons, but their equilibrium one-particle correlat ion functions are shown to have some quasi Fermi properties. The broke n symmetry of many-particle states at the impurity yields a new select ion rule for the resonant tunneling: The resonance is suppressed unles s an integer number of electrons occupies the impurity. This rule allo ws an explanation of the scaling behavior observed in the mesoscopic f luctuations of the conductivity in the fractional quantum Hall effect.