Ultracold Fermi gases with emergent SU (N) symmetry

MA Cazalilla, AM Rey - Reports on Progress in Physics, 2014 - iopscience.iop.org
We review recent experimental and theoretical progress on ultracold alkaline-earth Fermi
gases with emergent SU (N) symmetry. Emphasis is placed on describing the ground …

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 …

Many-body physics of ultracold alkaline-earth atoms with SU (N)-symmetric interactions

E Ibarra-García-Padilla… - Journal of Physics …, 2024 - iopscience.iop.org
Symmetries play a crucial role in understanding phases of matter and the transitions
between them. Theoretical investigations of quantum models with SU (N) symmetry have …

Tensor network study of the Shastry-Sutherland model in zero magnetic field

P Corboz, F Mila - Physical Review B—Condensed Matter and Materials …, 2013 - APS
We simulate the Shastry-Sutherland model in two dimensions by means of infinite projected
entangled-pair states (iPEPS)—a variational tensor network method where the accuracy can …

Spin nematics meet spin liquids: Exotic quantum phases in the spin-1 bilinear-biquadratic model with Kitaev interactions

R Pohle, N Shannon, Y Motome - Physical Review B, 2023 - APS
Spin liquid crystals are magnetic analogs of liquid crystals, possessing properties of both
liquids and solids, a typical example of which are spin nematics. Spin nematics share many …

Period 4 stripe in the extended two-dimensional Hubbard model

B Ponsioen, SS Chung, P Corboz - Physical Review B, 2019 - APS
We study the competition between stripe states with different periods and a uniform d-wave
superconducting state in the extended two-dimensional Hubbard model at 1/8 hole doping …

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 …

Superconducting stripes in the hole-doped three-band Hubbard model

B Ponsioen, SS Chung, P Corboz - Physical Review B, 2023 - APS
We study the ground state properties of the hole-doped three-band Hubbard (Emery) model,
describing the copper-oxygen planes of the cuprates, using large-scale two-dimensional …

Eight-color chiral spin liquid in the bilinear-biquadratic model with Kitaev interactions

R Pohle, N Shannon, Y Motome - Physical Review Research, 2024 - APS
Multipolar spin systems provide a rich ground for the emergence of unexpected states of
matter due to their enlarged spin degree of freedom. In this study, with a specific emphasis …