E
Erik G. C. P. van Loon
Researcher at Radboud University Nijmegen
Publications - 20
Citations - 366
Erik G. C. P. van Loon is an academic researcher from Radboud University Nijmegen. The author has contributed to research in topics: Hubbard model & Mott transition. The author has an hindex of 10, co-authored 14 publications receiving 276 citations. Previous affiliations of Erik G. C. P. van Loon include Lund University & University of Bremen.
Papers
More filters
Journal ArticleDOI
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,Olivier Parcollet,Hartmut Hafermann +4 more
TL;DR: The dual boson method as discussed by the authors provides a systemic way to do diagrammatic expansion on top of extended dynamical mean field theory and can be very useful for the computational research on many strongly correlated systems.
Journal ArticleDOI
Collective charge excitations of strongly correlated electrons, vertex corrections, and gauge invariance
Hartmut Hafermann,Erik G. C. P. van Loon,Mikhail I. Katsnelson,Alexander I. Lichtenstein,Olivier Parcollet +4 more
TL;DR: In this article, the collective, long-wavelength charge excitations in correlated media in the presence of short and long-range forces are considered and the relation between the vertex corrections, gauge invariance, and the appearance of the collective modes is discussed.
Journal ArticleDOI
Competing Coulomb and electron-phonon interactions in NbS2
Erik G. C. P. van Loon,Malte Rösner,Malte Rösner,Gunnar Schönhoff,Mikhail I. Katsnelson,Tim O. Wehling +5 more
TL;DR: In this article, the interplay of short and long-range Coulomb and electron-phonon interactions with thermal and quantum fluctuations facilitates rich phase diagrams in two-dimensional electron systems and suggests monolayer NbS2 as a platform for atomic scale engineering of electronic quantum phases.
Journal ArticleDOI
Confining graphene plasmons to the ultimate limit
TL;DR: In this paper, the plasmons of a graphene sheet deposited on a metal, in the regime in which metal bands do not hybridize with massless Dirac fermion bands, were studied.
Journal ArticleDOI
Precursors of the insulating state in the square-lattice Hubbard model
TL;DR: In this paper, the ladder dual fermion approach was used to study the two-dimensional Hubbard model for small to moderate interaction strengths, where the nonlocal correlations beyond dynamical mean field theory lower the potential energy, lead to a maximum in the uniform susceptibility, and induce a pseudogap in the density of states.