86 citations · 206 across the 8 of their papers we have counts for
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cond-mat.str-el1997★ 24 cited
Temperature-dependent electronic structure and ferromagnetism in the d=oo Hubbard model studied by a modfied perturbation theory
T. Wegner, M. Potthoff, W. Nolting
The infinite-dimensional Hubbard model is studied by means of a modified perturbation theory. The approach reduces to the iterative perturbation theory for weak coupling. It is exa…
cond-mat.str-el1997★ 86 cited
Interpolating self-energy of the infinite-dimensional Hubbard model: Modifying the iterative perturbation theory
M. Potthoff, T. Wegner, W. Nolting
We develop an analytical expression for the self-energy of the infinite-dimensional Hubbard model that is correct in a number of different limits. The approach represents a general…