The density-matrix renormalization group

U Schollwöck - Reviews of modern physics, 2005 - APS
The density-matrix renormalization group (DMRG) is a numerical algorithm for the efficient
truncation of the Hilbert space of low-dimensional strongly correlated quantum systems …

Numerical renormalization group method for quantum impurity systems

R Bulla, TA Costi, T Pruschke - Reviews of Modern Physics, 2008 - APS
In the early 1970s, Wilson developed the concept of a fully nonperturbative renormalization
group transformation. When applied to the Kondo problem, this numerical renormalization …

The density-matrix renormalization group in the age of matrix product states

U Schollwöck - Annals of physics, 2011 - Elsevier
The density-matrix renormalization group method (DMRG) has established itself over the
last decade as the leading method for the simulation of the statics and dynamics of one …

New trends in density matrix renormalization

KA Hallberg - Advances in Physics, 2006 - Taylor & Francis
The density matrix renormalization group (DMRG) has become a powerful numerical
method that can be applied to low-dimensional strongly correlated fermionic and bosonic …

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 …

Efficient low-temperature simulations for fermionic reservoirs with the hierarchical equations of motion method: Application to the Anderson impurity model

X Dan, M Xu, JT Stockburger, J Ankerhold, Q Shi - Physical Review B, 2023 - APS
The hierarchical equations of motion (HEOM) approach is an accurate method to simulate
open system quantum dynamics, which allows for systematic convergence to numerically …

Sparse modeling approach to analytical continuation of imaginary-time quantum Monte Carlo data

J Otsuki, M Ohzeki, H Shinaoka, K Yoshimi - Physical Review E, 2017 - APS
A data-science approach to solving the ill-conditioned inverse problem for analytical
continuation is proposed. The root of the problem lies in the fact that even tiny noise of …

Strong Coupling Nature of the Excitonic Insulator State in

K Sugimoto, S Nishimoto, T Kaneko, Y Ohta - Physical review letters, 2018 - APS
We analyze the measured optical conductivity spectra using the density-functional-theory-
based electronic structure calculation and density-matrix renormalization group calculation …

World-line and determinantal quantum Monte Carlo methods for spins, phonons and electrons

FF Assaad, HG Evertz - Computational Many-Particle Physics, 2008 - Springer
In this chapter we will concentrate primarily on world-line methods with loop updates, for
spins and also for spin-phonon systems, as well as on the auxiliary field quantum Monte …

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 …