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.
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Constantinescu, F., Felder, G., Gawedzki, K. et al. Analyticity of density of states in a gauge-invariant model for disordered electronic systems. J Stat Phys 48, 365–391 (1987). https://doi.org/10.1007/BF01019679
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DOI: https://doi.org/10.1007/BF01019679