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 …

Continuous-time Monte Carlo methods for quantum impurity models

E Gull, AJ Millis, AI Lichtenstein, AN Rubtsov… - Reviews of Modern …, 2011 - APS
Quantum impurity models describe an atom or molecule embedded in a host material with
which it can exchange electrons. They are basic to nanoscience as representations of …

Solutions of the two-dimensional Hubbard model: benchmarks and results from a wide range of numerical algorithms

JPF LeBlanc, AE Antipov, F Becca, IW Bulik, GKL Chan… - Physical Review X, 2015 - APS
Numerical results for ground-state and excited-state properties (energies, double
occupancies, and Matsubara-axis self-energies) of the single-orbital Hubbard model on a …

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 …

Superconductivity and the pseudogap in the two-dimensional Hubbard model

E Gull, O Parcollet, AJ Millis - Physical review letters, 2013 - APS
Recently developed numerical methods have enabled the explicit construction of the
superconducting state of the Hubbard model of strongly correlated electrons in parameter …

Fate of the false Mott-Hubbard transition in two dimensions

T Schäfer, F Geles, D Rost, G Rohringer, E Arrigoni… - Physical Review B, 2015 - APS
We have studied the impact of nonlocal electronic correlations at all length scales on the
Mott-Hubbard metal-insulator transition in the unfrustrated two-dimensional Hubbard model …

Quantum embedding theories to simulate condensed systems on quantum computers

C Vorwerk, N Sheng, M Govoni, B Huang… - Nature Computational …, 2022 - nature.com
Quantum computers hold promise to improve the efficiency of quantum simulations of
materials and to enable the investigation of systems and properties that are more complex …

Systematically improvable multiscale solver for correlated electron systems

AA Kananenka, E Gull, D Zgid - Physical Review B, 2015 - APS
The development of numerical methods capable of simulating realistic materials with
strongly correlated electrons, with controllable errors, is a central challenge in quantum …

Robust charge-density-wave correlations in the electron-doped single-band Hubbard model

P Mai, NS Nichols, S Karakuzu, F Bao… - Nature …, 2023 - nature.com
There is growing evidence that the hole-doped single-band Hubbard and t− J models do not
have a superconducting ground state reflective of the high-temperature cuprate …

Evolution of spin excitations from bulk to monolayer FeSe

J Pelliciari, S Karakuzu, Q Song, R Arpaia… - Nature …, 2021 - nature.com
In ultrathin films of FeSe grown on SrTiO3 (FeSe/STO), the superconducting transition
temperature T c is increased by almost an order of magnitude, raising questions on the …