Influence of boundary conditions on level statistics and eigenstates at the metal–insulator transition

L. Schweitzer and H. Potempa

Physica A: Statistical Mechanics and its Applications, 1999, vol. 266, issue 1, 486-491

Abstract: We investigate the influence of the boundary conditions on the scale invariant critical level statistics at the metal–insulator transition of disordered three-dimensional orthogonal and two-dimensional unitary and symplectic tight-binding models. The distribution of the spacings between consecutive eigenvalues is calculated numerically and shown to be different for periodic and Dirichlet boundary conditions whereas the critical disorder remains unchanged. The peculiar correlations of the corresponding critical eigenstates leading to anomalous diffusion seem not to be affected by the change of the boundary conditions.

Keywords: Metal–insulator transition; Dirichlet boundary conditions; Periodic boundary conditions; Eigenstates (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:266:y:1999:i:1:p:486-491

DOI: 10.1016/S0378-4371(98)00636-0

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