Crossover from critical orthogonal to critical unitary statistics at the Anderson transition

Details Crossover from critical orthogonal to critical unitary statistics at the Anderson transition Crossover from critical orthogonal to critical unitary statistics at the Anderson transition

1996-07-10

arxiv.org/abs/cond-mat/9607070v1

Physics

Condensed Matter

4 pages RevTeX, 4 epsf-figures included, to appear in Physical Review Letters (August 1996)

Scientific paper

10.1103/PhysRevLett.77.1552

We report a novel scale-independent, Aharonov-Bohm flux controlled crossover from critical orthogonal to critical unitary statistics at the disorder induced metal insulator transition. Our numerical investigations show that at the critical point the level statistics are definitely distinct and determined by fundamental symmetries. The latter is similar to the behavior of the metallic phase known from random matrix theory. The Aharonov-Bohm flux dependent crossover is characteristic of the critical ensemble.

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