Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 12, Issue 1-4, Pages 627-629Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1386-9477(01)00403-9
Keywords
network models; D classy; level statistics
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Level statistics for symmetry class D of random matrix ensembles is investigated. It arises in models of non-interacting quasiparticles in disordered superconductors without time-reversal and spin-rotation invariance, In the metallic regime, the nearest-neighbor spacing distribution (NNSD) reproduces exactly the Wigner surmise for GUE as one should expect in the presence of magnetic field, whereas in the localized regime, level repulsion is supressed. NNSD therefore reflects some basic symmetries of the system while ignoring particle-hole symmetries. (C) 2002 Elsevier Science B.V. All rights reserved.
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