The Hubbard model: A computational perspective

M Qin, T Schäfer, S Andergassen… - Annual Review of …, 2022 - annualreviews.org
The Hubbard model is the simplest model of interacting fermions on a lattice and is of similar
importance to correlated electron physics as the Ising model is to statistical mechanics or the …

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 …

Tracking the footprints of spin fluctuations: A multimethod, multimessenger study of the two-dimensional Hubbard model

T Schäfer, N Wentzell, F Šimkovic IV, YY He, C Hille… - Physical Review X, 2021 - APS
The Hubbard model represents the fundamental model for interacting quantum systems and
electronic correlations. Using the two-dimensional half-filled Hubbard model at weak …

Correlated electronic structure of

C Yue, V Christiansson, P Werner - Physical Review B, 2023 - APS
Recently, above-room-temperature superconductivity was reported in the Cu-doped lead
apatite Pb 10− x Cu x (PO 4) 6 O, dubbed LK-99. By relaxing the structure with Cu …

Cuprate superconductors as viewed through a striped lens

JM Tranquada - Advances in Physics, 2020 - Taylor & Francis
Understanding the electron pairing in hole-doped cuprate superconductors has been a
challenge, in particular because the “normal” state from which it evolves is unprecedented …

Origin and fate of the pseudogap in the doped Hubbard model

F Šimkovic IV, R Rossi, A Georges, M Ferrero - Science, 2024 - science.org
The relationship between the pseudogap and underlying ground-state phases has not yet
been rigorously established. We investigated the doped two-dimensional Hubbard model at …

Non-Fermi liquid phase and linear-in-temperature scattering rate in overdoped two-dimensional Hubbard model

W Wú, X Wang, AM Tremblay - Proceedings of the National …, 2022 - National Acad Sciences
Understanding electronic properties that violate the Landau Fermi liquid paradigm in
cuprate superconductors remains a major challenge in condensed-matter physics. The …

Magnetic correlations in infinite-layer nickelates: An experimental and theoretical multimethod study

RA Ortiz, P Puphal, M Klett, F Hotz, RK Kremer… - Physical Review …, 2022 - APS
We report a comprehensive study of magnetic correlations in LaNiO 2, a parent compound
of the recently discovered family of infinite-layer (IL) nickelate superconductors, using …

Controlling Feynman diagrammatic expansions: Physical nature of the pseudogap in the two-dimensional Hubbard model

W Wu, M Ferrero, A Georges, E Kozik - Physical Review B, 2017 - APS
We introduce a method for summing Feynman's perturbation series based on diagrammatic
Monte Carlo that significantly improves its convergence properties. This allows us to …

Pseudogap and Fermi-surface topology in the two-dimensional Hubbard model

W Wu, MS Scheurer, S Chatterjee, S Sachdev… - Physical Review X, 2018 - APS
One of the distinctive features of hole-doped cuprate superconductors is the onset of a
“pseudogap” below a temperature T*. Recent experiments suggest that there may be a …