Transitions between Hall plateaux and the dimerization transition of a Hubbard chain

  title={Transitions between Hall plateaux and the dimerization transition of a Hubbard chain},
  author={Dunghai Lee and Ziqiang Wang},
  journal={Philosophical Magazine Letters},
We show that the plateau transitions in the quantum Hall effect are the same as the dimerization transition of a half-filled one-dimensional U(2n) Hubbard model at n=0. We address the properties of the latter by a combination of perturbative renormalization group and Monte Carlo simulations. Results on both critical and o-critical properties are presented. 
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