143 citations · 1k across the 32 of their papers we have counts for
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Precursors of the insulating state in the square lattice Hubbard model
Erik G. C. P. van Loon, Hartmut Hafermann, Mikhail Katsnelson
We study the two-dimensional square lattice Hubbard model for small to moderate interaction strengths by means of the ladder dual fermion approach. The non-local…
The extended Hubbard model with attractive interactions
E. G. C. P. van Loon, M. I. Katsnelson
We discuss the phase diagram of the extended Hubbard model with both attractive and repulsive local and nonlocal interactions. The extended dynamical mean-field theory (EDMFT) and…
Competing Coulomb and electron-phonon interactions in NbS
E. G. C. P. van Loon, M. Rösner, G. Schönhoff +2
The interplay of Coulomb and electron-phonon interactions with thermal and quantum fluctuations facilitates rich phase diagrams in two-dimensional electron systems. Layered transit…
First-order metal-insulator transitions in the extended Hubbard model due to self-consistent screening of the effective interaction
M. Schüler, E. G. C. P. van Loon, M. I. Katsnelson +1
While the Hubbard model is the standard model to study Mott metal-insulator transitions, it is still unclear to which extent it can describe metal-insulator transitions in real sol…