Physics – Mathematical Physics
Scientific paper
2007-09-21
J. Math. Phys. Anal. Geom. 4, 128-150 (2008) [Issue in honour of L. Pastur's 70th birthday]
Physics
Mathematical Physics
Scientific paper
We study the ac-conductivity in linear response theory for the Anderson
tight-binding model. We define the electrical ac-conductivity and calculate the
linear-response current at zero temperature for arbitrary Fermi energy. In
particular, the Fermi energy may lie in a spectral region where extended states
are believed to exist.
Klein Abel
Müller Peter
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