336 citations · 2.1k across the 77 of their papers we have counts for
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cond-mat.str-el2004★ 6 cited
Non-perturbative construction of the Luttinger-Ward functional
Michael Potthoff
For a system of correlated electrons, the Luttinger-Ward functional provides a link between static thermodynamic quantities on the one hand and single-particle excitations on the o…
cond-mat.str-el2004★ 16 cited
Disorder- and correlation-driven metal-insulator transitions
Matthias Balzer, Michael Potthoff
Metal-insulator transitions driven by disorder (Delta) and/or by electron correlations (U) are investigated within the Anderson-Hubbard model with local binary-alloy disorder using…
cond-mat.str-el2004★ 99 cited
Charge ordering in extended Hubbard models: Variational cluster approach
M. Aichhorn, H. G. Evertz, W. von der Linden +1
We present a generalization of the recently proposed variational cluster perturbation theory to extended Hubbard models at half filling with repulsive nearest neighbor interaction.…