Multichannel Kondo Models in Non-Abelian Quantum Hall Droplets
- Creators
- Fiete, Gregory A.
- Bishara, Waheb
- Nayak, Chetan
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.
Additional Information
© 2008 The American Physical Society. (Received 5 April 2008; published 20 October 2008) We acknowledge helpful discussions with E. Ardonne, J. Eisenstein, L. Fidkowski, A. Ludwig, and G. Refael. G.A.F. was supported by the Lee A. DuBridge Foundation.Attached Files
Published - FIEprl08.pdf
Files
Name | Size | Download all |
---|---|---|
md5:1b7124174b845d9c22a148b76b30f715
|
128.5 kB | Preview Download |
Additional details
- Eprint ID
- 12131
- Resolver ID
- CaltechAUTHORS:FIEprl08
- Lee A. DuBridge Foundation
- Created
-
2008-10-24Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field