Log-normal Distribution of Level Curvatures in the Localized Regime: Analytical Verification

Details Log-normal Distribution of Level Curvatures in the Localized Regime: Analytical Verification Log-normal Distribution of Level Curvatures in the Localized Regime: Analytical Verification

1996-11-28

arxiv.org/abs/cond-mat/9611235v1

J. Phys. A 30, L339 (1997)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages (revtex), 1 figure (ps file)

Scientific paper

10.1088/0305-4470/30/10/007

We study numerically and analytically the moments of the dimensionless level curvature for one-dimensional disordered rings of the circumference L pierced by a magnetic flux. The negative moments of the curvature distribution can be evaluated analytically in the extreme localization limit. The ensuing small curvature asymptotic of the corresponding distribution has a "log-normal" behavior. Numerically studied positive moments show differences from other log-normally distributed quantities.

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