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 …

Recent developments in quantum Monte Carlo simulations with applications for cold gases

L Pollet - Reports on progress in physics, 2012 - iopscience.iop.org
This is a review of recent developments in Monte Carlo methods in the field of ultracold
gases. For bosonic atoms in an optical lattice we discuss path-integral Monte Carlo …

Machine learning phases of strongly correlated fermions

K Ch'Ng, J Carrasquilla, RG Melko, E Khatami - Physical Review X, 2017 - APS
Machine learning offers an unprecedented perspective for the problem of classifying phases
in condensed matter physics. We employ neural-network machine learning techniques to …

Observation of antiferromagnetic correlations in the Hubbard model with ultracold atoms

RA Hart, PM Duarte, TL Yang, X Liu, T Paiva… - Nature, 2015 - nature.com
Ultracold atoms in optical lattices have great potential to contribute to a better understanding
of some of the most important issues in many-body physics, such as high-temperature …

Unsupervised machine learning account of magnetic transitions in the Hubbard model

K Ch'ng, N Vazquez, E Khatami - Physical Review E, 2018 - APS
We employ several unsupervised machine learning techniques, including autoencoders,
random trees embedding, and t-distributed stochastic neighboring ensemble (t-SNE), to …

Density functionals and model Hamiltonians: Pillars of many-particle physics

K Capelle, VL Campo Jr - Physics Reports, 2013 - Elsevier
Density-functional theory (DFT) and model Hamiltonians are conceptually distinct
approaches to the many-particle problem, which can be developed and applied …

[HTML][HTML] Thermometry and cooling of a Bose gas to 0.02 times the condensation temperature

R Olf, F Fang, GE Marti, A MacRae, DM Stamper-Kurn - Nature Physics, 2015 - nature.com
Trapped quantum gases can be cooled to impressively low temperatures,, but it is unclear
whether their entropy is low enough to realize phenomena such as d-wave …

Thermodynamics of strongly interacting fermions in two-dimensional optical lattices

E Khatami, M Rigol - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
We study finite-temperature properties of strongly correlated fermions in two-dimensional
optical lattices by means of numerical linked cluster expansions, a computational technique …

Compressibility of a fermionic Mott insulator of ultracold atoms

PM Duarte, RA Hart, TL Yang, X Liu, T Paiva… - Physical review …, 2015 - APS
We characterize the Mott insulating regime of a repulsively interacting Fermi gas of ultracold
atoms in a three-dimensional optical lattice. We use in situ imaging to extract the central …

Phase diagram of the Hubbard model on the anisotropic triangular lattice

M Laubach, R Thomale, C Platt, W Hanke, G Li - Physical Review B, 2015 - APS
We investigate the Hubbard model on the anisotropic triangular lattice as a suggested
effective description of the Mott phase in various triangular organic compounds. Employing …