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20112026
most citedDual boson approach to collective excitations in correlated fermionic systems

143 citations · 1k across the 32 of their papers we have counts for

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cond-mat.str-el2021★ 20 cited

Two-particle correlations and the metal-insulator transition: Iterated Perturbation Theory revisited

Erik G. C. P. van Loon

Recent advances in many-body physics have made it possible to study correlated electron systems at the two-particle level. In Dynamical Mean-Field theory, it has been shown that th…

cond-mat.str-el2021★ 28 cited

Local Plaquette Physics as Key Ingredient of High-Temperature Superconductivity in Cuprates

M. Danilov, E. G. C. P. van Loon, S. Brener +3

A major pathway towards understanding complex systems is given by exactly solvable reference systems that contain the essential physics of the system. For the Hubbard mode…

cond-mat.str-el2021★ 39 cited

Random Phase Approximation for gapped systems: role of vertex corrections and applicability of the constrained random phase approximation

Erik G. C. P. van Loon, Malte Rösner, Mikhail I. Katsnelson +1

The many-body theory of interacting electrons poses an intrinsically difficult problem that requires simplifying assumptions. For the determination of electronic screening properti…

cond-mat.str-el2021★ 9 cited

Downfolding approaches to electron-ion coupling: Constrained density-functional perturbation theory for molecules

Erik G. C. P. van Loon, Jan Berges, Tim O. Wehling

Constrained electronic-structure theories enable the construction of effective low-energy models consisting of partially dressed particles. However, the interpretation and physical…

cond-mat.mtrl-sci2021

A full gap above the Fermi level: the charge density wave of monolayer VS2

Camiel van Efferen, Jan Berges, Joshua Hall +15

In the standard model of charge density wave (CDW) transitions, the displacement along a single phonon mode lowers the total electronic energy by creating a gap at the Fermi level,…