Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory

G Rohringer, H Hafermann, A Toschi, AA Katanin… - Reviews of Modern …, 2018 - APS
Strong electronic correlations pose one of the biggest challenges to solid state theory.
Recently developed methods that address this problem by starting with the local, eminently …

Quantitative theory of magnetic interactions in solids

A Szilva, Y Kvashnin, EA Stepanov, L Nordström… - Reviews of Modern …, 2023 - APS
This review addresses the method of explicit calculations of interatomic exchange
interactions of magnetic materials. This involves exchange mechanisms normally referred to …

Quenched Pair Breaking by Interlayer Correlations as a Key to Superconductivity in

S Ryee, N Witt, TO Wehling - Physical Review Letters, 2024 - APS
The recent discovery of superconductivity in La 3 Ni 2 O 7 with T c≃ 80 K under high
pressure opens up a new route to high-T c superconductivity. This material realizes a bilayer …

Mott physics and spin fluctuations: A unified framework

T Ayral, O Parcollet - Physical Review B, 2015 - APS
We present a formalism for strongly correlated electron systems which consists in a local
approximation of the dynamical three-leg interaction vertex. This vertex is self-consistently …

Photo-induced nonequilibrium states in Mott insulators

Y Murakami, D Golež, M Eckstein, P Werner - arxiv preprint arxiv …, 2023 - arxiv.org
The study of nonequilibrium phenomena in interacting lattice systems can provide new
perspectives on correlation effects, and information on metastable states of matter. Mott …

Mott versus Hybridization Gap in the Low-Temperature Phase of

F Petocchi, CW Nicholson, B Salzmann, D Pasquier… - Physical Review Letters, 2022 - APS
We address the long-standing problem of the ground state of 1 T-TaS 2 by computing the
correlated electronic structure of stacked bilayers using the GW+ EDMFT method …

Multitier self-consistent

F Nilsson, L Boehnke, P Werner, F Aryasetiawan - Physical Review Materials, 2017 - APS
We discuss a parameter-free and computationally efficient ab initio simulation approach for
moderately and strongly correlated materials, the multitier self-consistent GW+ EDMFT …

Dynamical mean-field study of a photon-mediated ferroelectric phase transition

K Lenk, J Li, P Werner, M Eckstein - Physical Review B, 2022 - APS
The interplay of light and matter gives rise to intriguing cooperative effects in quantum many-
body systems. This is even true in thermal equilibrium, where the electromagnetic field can …

Local and nonlocal electronic correlations at the metal-insulator transition in the two-dimensional Hubbard model

M Chatzieleftheriou, S Biermann, EA Stepanov - Physical Review Letters, 2024 - APS
Elucidating the physics of the single-orbital Hubbard model in its intermediate-coupling
regime is a key missing ingredient to our understanding of metal-insulator transitions in real …

When strong correlations become weak: Consistent merging of and DMFT

L Boehnke, F Nilsson, F Aryasetiawan, P Werner - Physical Review B, 2016 - APS
The cubic perovskite SrVO 3 is generally considered to be a prototype strongly correlated
metal with a characteristic three-peak structure of the d-electron spectral function, featuring a …