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 …

Colloquium: Modeling the unconventional superconducting properties of expanded fullerides

M Capone, M Fabrizio, C Castellani, E Tosatti - Reviews of Modern Physics, 2009‏ - APS
The trivalent alkali fulleride solids of generic composition A 3 C 60, where C 60 is the
fullerene molecule and A= K, Rb, and Cs, are a well-established family of molecular …

Efficient real-frequency solver for dynamical mean-field theory

Y Lu, M Höppner, O Gunnarsson, MW Haverkort - Physical Review B, 2014‏ - APS
We here present how a self-consistent solution of the dynamical mean-field theory equations
can be obtained using exact diagonalization of an Anderson impurity model with accuracies …

Vanadium dioxide: A Peierls-Mott insulator stable against disorder

C Weber, DD O'Regan, NDM Hine, MC Payne… - Physical review …, 2012‏ - APS
Vanadium dioxide undergoes a first order metal-insulator transition at 340 K. In this Letter,
we develop and carry out state-of-the-art linear scaling density-functional theory calculations …

Fork tensor-product states: efficient multiorbital real-time DMFT solver

D Bauernfeind, M Zingl, R Triebl, M Aichhorn… - Physical Review X, 2017‏ - APS
We present a tensor network especially suited for multi-orbital Anderson impurity models
and as an impurity solver for multi-orbital dynamical mean-field theory (DMFT). The solver …

Nonequilibrium quantum impurity problems via matrix-product states in the temporal domain

J Thoenniss, A Lerose, DA Abanin - Physical Review B, 2023‏ - APS
Describing a quantum impurity coupled to one or more noninteracting fermionic reservoirs is
a paradigmatic problem in quantum many-body physics. While historically the focus has …

Double counting in LDA+ DMFT—The example of NiO

M Karolak, G Ulm, T Wehling, V Mazurenko… - Journal of Electron …, 2010‏ - Elsevier
An intrinsic issue of the LDA+ DMFT approach is the so called double counting of interaction
terms. How to choose the double-counting potential in a manner that is both physically …

Dynamical mean-field theory from a quantum chemical perspective

D Zgid, GK Chan - The Journal of chemical physics, 2011‏ - pubs.aip.org
We investigate the dynamical mean-field theory (DMFT) from a quantum chemical
perspective. Dynamical mean-field theory offers a formalism to extend quantum chemical …

Efficient formulation of ab initio quantum embedding in periodic systems: Dynamical mean-field theory

T Zhu, ZH Cui, GKL Chan - Journal of Chemical Theory and …, 2019‏ - ACS Publications
We present an efficient ab initio dynamical mean-field theory (DMFT) implementation for
quantitative simulations in solids. Our DMFT scheme employs ab initio Hamiltonians defined …

Imaginary-time matrix product state impurity solver for dynamical mean-field theory

FA Wolf, A Go, IP McCulloch, AJ Millis, U Schollwöck - Physical Review X, 2015‏ - APS
We present a new impurity solver for dynamical mean-field theory based on imaginary-time
evolution of matrix product states. This converges the self-consistency loop on the imaginary …