Dynamical scaling at the quantum Hall transition: Coulomb blockade versus phase breaking
D. G. Polyakov, K. V. Samokhin
Abstract
We argue that the finite temperature dynamics of the integer quantum Hall system is governed by two independent length scales. The consistent scaling description of the transition makes crucial use of two temperature critical exponents, reflecting the interplay between charging effects and interaction-induced dephasing. Experimental implications of the two-scale picture are discussed.
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