paper

The Effects of Electron-Electron Interactions on the Integer Quantum Hall Transitions

arXiv:cond-mat/9511022 · doi:10.1103/PhysRevLett.76.4014

Abstract

We study the effects of electron-electron interaction on the critical properties of the plateau transitions in the {\it integer} quantum Hall effect. We find the renormalization group dimension associated with short-range interactions to be . Thus the non-interacting fixed point (characterized and ) is stable. For the Coulomb interaction, we find the correlation effect is a marginal perturbation at a Hartree-Fock fixed point (, ) by dimension counting. Further calculations are needed to determine its stability upon loop corrections.

12 pages, Revtex, minor changes, to be published in Phys. Rev. Lett

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