Isosbestic Points in the Spectral Function of Correlated Electrons
نویسندگان
چکیده
منابع مشابه
Isosbestic points in the spectral function of correlated electrons
We investigate the properties of the spectral function A(ω,U) of correlated electrons within the Hubbard model and dynamical mean-field theory. Curves of A(ω,U) vs. ω for different values of the interaction U are found to intersect near the band-edges of the non-interacting system. For a wide range of U the crossing points are located within a sharply confined region. The precise location of th...
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ژورنال
عنوان ژورنال: Journal of Low Temperature Physics
سال: 2007
ISSN: 0022-2291,1573-7357
DOI: 10.1007/s10909-007-9311-3