Quantum gas microscopy for single atom and spin detection

C Gross, WS Bakr - Nature Physics, 2021 - nature.com
A particular strength of ultracold quantum gases is the range of versatile detection methods
that are available. As they are based on atom–light interactions, the whole quantum optics …

Frustration-and do**-induced magnetism in a Fermi–Hubbard simulator

M Xu, LH Kendrick, A Kale, Y Gang, G Ji, RT Scalettar… - Nature, 2023 - nature.com
Geometrical frustration in strongly correlated systems can give rise to a plethora of novel
ordered states and intriguing magnetic phases, such as quantum spin liquids,–. Promising …

Site-resolved observables in the doped spin-imbalanced triangular Hubbard model

D Garwood, J Mongkolkiattichai, L Liu, J Yang… - Physical Review A, 2022 - APS
The suppression of antiferromagnetic ordering in geometrically frustrated Hubbard models
leads to a variety of exotic quantum phases including quantum spin liquids and chiral states …

Directly imaging spin polarons in a kinetically frustrated Hubbard system

ML Prichard, BM Spar, I Morera, E Demler, ZZ Yan… - Nature, 2024 - nature.com
The emergence of quasiparticles in quantum many-body systems underlies the rich
phenomenology in many strongly interacting materials. In the context of doped Mott …

Exploration of doped quantum magnets with ultracold atoms

A Bohrdt, L Homeier, C Reinmoser, E Demler, F Grusdt - Annals of Physics, 2021 - Elsevier
In the last decade, quantum simulators, and in particular cold atoms in optical lattices, have
emerged as a valuable tool to study strongly correlated quantum matter. These experiments …

Observation of Nagaoka polarons in a Fermi–Hubbard quantum simulator

M Lebrat, M Xu, LH Kendrick, A Kale, Y Gang… - Nature, 2024 - nature.com
Quantum interference can deeply alter the nature of many-body phases of matter. In the
case of the Hubbard model, Nagaoka proved that introducing a single itinerant charge can …

Observation of brane parity order in programmable optical lattices

D Wei, D Adler, K Srakaew, S Agrawal, P Weckesser… - Physical Review X, 2023 - APS
The Mott-insulating phase of the two-dimensional (2D) Bose-Hubbard model is expected to
be characterized by a nonlocal brane parity order. Parity order captures the presence of …

Site-resolved imaging of ultracold fermions in a triangular-lattice quantum gas microscope

J Yang, L Liu, J Mongkolkiattichai, P Schauss - PRX Quantum, 2021 - APS
Quantum gas microscopes have expanded the capabilities of quantum simulation of
Hubbard models by enabling the study of spatial spin and density correlations in square …

An unsupervised deep learning algorithm for single-site reconstruction in quantum gas microscopes

A Impertro, JF Wienand, S Häfele, H von Raven… - Communications …, 2023 - nature.com
In quantum gas microscopy experiments, reconstructing the site-resolved lattice occupation
with high fidelity is essential for the accurate extraction of physical observables. For short …

Neural network approach to quasiparticle dispersions in doped antiferromagnets

H Lange, F Döschl, J Carrasquilla, A Bohrdt - Communications Physics, 2024 - nature.com
Numerically simulating large, spinful, fermionic systems is of great interest in condensed
matter physics. However, the exponential growth of the Hilbert space dimension with system …