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Level statistics in a two-dimensional system with strong spin-orbit coupling | | A.P. Dmitriev
; V.Yu. Kachorovskii
; | | Date: |
6 Jun 1999 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | We study level correlations in a two-dimensional system with a long-range random potential and strong spin-orbit (SO) splitting of the spectrum. The level correlations for sufficiently large splitting are shown to be described by orthogonal Wigner-Dyson statistics, in contrast to the common point of view that a system with the strong SO coupling belongs to the symplectic statistical ensemble. We demonstrate also that in a wide energy interval the level statistics is completely determined by transitions between two branches of the split spectrum. A sharp resonance is obtained in the two-level correlation function at energy equal to the value of SO splitting. | | Source: | arXiv, cond-mat/9906086 | | Services: | Forum | Review | PDF | Favorites | |
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