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Analyticity of density of states in a gauge-invariant model for disordered electronic systems |
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| Authors: | F. Constantinescu G. Felder K. Gawedzki A. Kupiainen |
| Affiliation: | (1) Institute for Applied Mathematics Frankfurt am Main University, 6000 Frankfurt, Federal Republic of Germany;(2) Institut des Hautes Etudes Scientifiques, 91440 Bures-sur-Yvette, France;(3) Institut des Hautes Etudes Scientifiques, CNRS, 91440 Bures-sur-Yvette, France;(4) Research Institute for Theoretical Physics, Helsinki University, 00170 Helsinki, Finland |
| Abstract: | Then-orbital gauge-invariant model of disordered electronic systems proposed by Wegner is studied in the regime of dominant diagonal disorder. Analyticity of the density of states is established in two cases: (a) when the number of orbitals is small, (b) when the number of orbitals is large and the energy is in the expected extended states region. |
| Keywords: | Disordered systems random matrices Wegner's model |
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