title: Multichannel Kondo models in non-Abelian quantum Hall droplets.
abstract: We study the coupling between a quantum dot and the edge of a non-Abelian fractional quantum Hall state which is spatially separated from it by an integer quantum Hall state. Near a resonance, the physics at energy scales below the level spacing of the edge states of the dot is governed by a k-channel Kondo model when the quantum Hall state is a Read-Rezayi state at filling fraction nu=2+k/(k+2) or its particle-hole conjugate at nu=2+2/(k+2). The k-channel Kondo model is channel isotropic even without fine-tuning in the former state; in the latter, it is generically channel anisotropic. In the special case of k=2, our results provide a new venue, realized in a mesoscopic context, to distinguish between the Pfaffian and anti-Pfaffian states at filling fraction nu=5/2.
authors.affiliation: Department of Physics, California Institute of Technology, Pasadena, CA 91125, USA.
authors.forename: Gregory A
authors.initials: GA
authors.lastname: Fiete
authors.forename: Waheb
authors.initials: W
authors.lastname: Bishara
authors.forename: Chetan
authors.initials: C
authors.lastname: Nayak