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Coulomb blockade in the fractional quantum Hall effect regime

Michael R. Geller and Daniel Loss
Phys. Rev. B 62, R16298(R) – Published 15 December 2000
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Abstract

We use chiral Luttinger liquid theory to study transport through a quantum dot in the fractional quantum Hall effect regime and find rich non-Fermi-liquid tunneling characteristics. In particular, we predict a remarkable Coulomb-blockade-type energy gap that is quantized in units of the noninteracting level spacing, power-law tunneling exponents for voltages beyond threshold, and a line shape as a function of gate voltage that is dramatically different than that for a Fermi liquid. We propose experiments to use these unique spectral properties as a probe of the fractional quantum Hall effect.

  • Received 18 September 2000

DOI:https://doi.org/10.1103/PhysRevB.62.R16298

©2000 American Physical Society

Authors & Affiliations

Michael R. Geller1,2 and Daniel Loss3,*

  • 1Institute for Theoretical Physics, University of California, Santa Barbara, California 93106
  • 2Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602-2451
  • 3Department of Physics and Astronomy, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland

  • *Permanent address.

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Issue

Vol. 62, Iss. 24 — 15 December 2000

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