Quantum and classical localization in the lowest Landau level

Details Quantum and classical localization in the lowest Landau level Quantum and classical localization in the lowest Landau level

2003-04-28

arxiv.org/abs/cond-mat/0304616v1

Phys. Rev. B 68, 205315 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.68.205315

Spatial correlations of occupation probabilities, if their decay is not too fast, can change the critical exponents for classical percolation. From numerical studies of electron dynamics in the lowest Landau level (LLL) we demonstrate the quantum analog of this effect. Similar to classical percolation, we find that the extended Harris criterion applies to localization in the LLL. These results suggest experiments that might probe new quantum critical points in the integer quantum Hall setting.

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