143 citations · 1k across the 32 of their papers we have counts for
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Beyond extended dynamical mean-field theory: Dual boson approach to the two-dimensional extended Hubbard model
Erik G. C. P. van Loon, Alexander I. Lichtenstein, Mikhail I. Katsnelson +2
The dual boson approach [Ann. Phys. 327, 1320 (2012)] provides a means to construct a diagrammatic expansion around the extended dynamical mean-field theory (EDMFT). In this paper,…
Collective Charge Excitations of Strongly Correlated Electrons, Vertex Corrections and Gauge Invariance
Hartmut Hafermann, Erik G. C. P. van Loon, Mikhail I. Katsnelson +2
We consider the collective, long-wavelength charge excitations in correlated media in presence of short- and long-range forces. As an example for the case of a short-range interact…
Plasmons in strongly correlated systems: spectral weight transfer and renormalized dispersion
E. G. C. P. van Loon, H. Hafermann, A. I. Lichtenstein +2
We study the charge-density dynamics within the two-dimensional extended Hubbard model in the presence of long-range Coulomb interaction across the metal-insulator transition point…