Localization length index in a Chalker-Coddington model: a numerical study

Abstract

We calculated numerically the localization length index $\nu$ for the Chalker-Coddington model of the plateau-plateau transitions in the quantum Hall effect. By taking into account finite size effects we have obtained $\nu =2.593\pm 0.0297$. The calculations were carried out by two different programs that produced close results, each one within the error bars of the other. We also checked the possibility of logarithmic corrections to finite size effects and found, that they come with much larger error bars for $\nu$.

5 pages, 3 figures, 1 table

References in corpus (4)

• Critical exponent for the quantum Hall transition
• Multifractality at the quantum Hall transition: Beyond the parabolic paradigm
• Finite Size Effects and Irrelevant Corrections to Scaling near the Integer Quantum Hall Transition
• Evidence for the PSL(2$|$2) Wess-Zumino-Novikov-Witten model as a model for the plateau transition in Quantum Hall effect: Evaluation of numerical simulations

Cited by in corpus (1)

• A matrix model for strings beyond the c=1 barrier: the spin-s Heisenberg model on random surfaces