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 …

Dirac materials

TO Wehling, AM Black-Schaffer… - Advances in Physics, 2014 - Taylor & Francis
A wide range of materials, like d-wave superconductors, graphene, and topological
insulators, share a fundamental similarity: their low-energy fermionic excitations behave as …

Origin of Mott insulating behavior and superconductivity in twisted bilayer graphene

HC Po, L Zou, A Vishwanath, T Senthil - Physical Review X, 2018 - APS
A remarkable recent experiment has observed Mott insulator and proximate superconductor
phases in twisted bilayer graphene when electrons partly fill a nearly flat miniband that …

Chiral superconductors

C Kallin, J Berlinsky - Reports on Progress in Physics, 2016 - iopscience.iop.org
Chiral superconductivity is a striking quantum phenomenon in which an unconventional
superconductor spontaneously develops an angular momentum and lowers its free energy …

Variational optimization with infinite projected entangled-pair states

P Corboz - Physical Review B, 2016 - APS
We present a scheme to perform an iterative variational optimization with infinite projected
entangled-pair states, a tensor network ansatz for a two-dimensional wave function in the …

Gradient methods for variational optimization of projected entangled-pair states

L Vanderstraeten, J Haegeman, P Corboz, F Verstraete - Physical Review B, 2016 - APS
We present a conjugate-gradient method for the ground-state optimization of projected
entangled-pair states (PEPS) in the thermodynamic limit, as a direct implementation of the …

Infinite projected entangled pair states algorithm improved: Fast full update and gauge fixing

HN Phien, JA Bengua, HD Tuan, P Corboz, R Orús - Physical Review B, 2015 - APS
The infinite projected entangled pair states (iPEPS) algorithm [J. Jordan, Phys. Rev. Lett.
101, 250602 (2008) PRLTAO 0031-9007 10.1103/PhysRevLett. 101.250602] has become a …

Chiral d-wave superconductivity in doped graphene

AM Black-Schaffer, C Honerkamp - Journal of Physics …, 2014 - iopscience.iop.org
A highly unconventional superconducting state with a spin-singlet $ d_ {x^ 2-y^ 2}\pm {\rm i}
d_ {xy} $-wave, or chiral d-wave symmetry has recently been suggested to emerge from …

Loop optimization for tensor network renormalization

S Yang, ZC Gu, XG Wen - Physical review letters, 2017 - APS
We introduce a tensor renormalization group scheme for coarse graining a two-dimensional
tensor network that can be successfully applied to both classical and quantum systems on …

Finite correlation length scaling with infinite projected entangled-pair states

P Corboz, P Czarnik, G Kapteijns, L Tagliacozzo - Physical Review X, 2018 - APS
We show how to accurately study two-dimensional quantum critical phenomena using
infinite projected entangled-pair states (iPEPS). We identify the presence of a finite …