Quantum Hall Transitions: Exact Results, Conjectures, and Numerical Tests
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Abstract
In this talk I will review a number of recent results, analytical as well as numerical, on critical behavior near the integer quantum Hall transition and its cousins in other symmetry classes. The results include exact properties of the multifractal spectrum of critical wave functions obtained from field-theoretic approaches, and the localization length exponent obtained numerically in a network model with geometric disorder.
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Physics, Room 203, Purdue University, West Lafayette, IN