Impurities and polarons in bosonic quantum gases: a review on recent progress

F Grusdt, N Mostaan, E Demler, LAP Ardila - arXiv preprint arXiv …, 2024 - arxiv.org
This review describes the field of Bose polarons, arising when mobile impurities are
immersed into a bosonic quantum gas. The latter can be realized by a Bose-Einstein …

Pairing dome from an emergent Feshbach resonance in a strongly repulsive bilayer model

H Lange, L Homeier, E Demler, U Schollwöck, A Bohrdt… - Physical Review B, 2024 - APS
A key to understanding unconventional superconductivity lies in unraveling the pairing
mechanism of mobile charge carriers in doped antiferromagnets, yielding an effective …

Superconductivity in the pressurized nickelate La3Ni2O7 in the vicinity of a BEC–BCS crossover

H Schlömer, U Schollwöck, F Grusdt… - Communications …, 2024 - nature.com
Ever since the discovery of high-temperature superconductivity in cuprates, gaining
microscopic insights into the nature of pairing in strongly correlated systems has remained …

Scattering theory of mesons in doped antiferromagnetic Mott insulators: Multichannel perspective and Feshbach resonance

L Homeier, P Bermes, F Grusdt - Physical Review B, 2024 - APS
Modeling the underlying pairing mechanism of charge carriers in strongly correlated
electrons, starting from a microscopic theory, is among the central challenges of condensed …

Geometric fractionalized Fermi liquids: Hidden antiferromagnetism and pseudogap from fluctuating stripes

H Schlömer, A Bohrdt, F Grusdt - arXiv preprint arXiv:2411.03419, 2024 - arxiv.org
One of the key features of hole-doped cuprates is the presence of an extended pseudogap
phase, whose microscopic origin has been the subject of intense investigation since its …

Emergent spinon-holon Feshbach resonance in a doped Majumdar-Ghosh model

SM Linsel, U Schollwöck, A Bohrdt, F Grusdt - arXiv preprint arXiv …, 2024 - arxiv.org
Experimental and numerical spectroscopy have revealed rich physics in antiferromagnets, in
particular in frustrated and doped systems. The Majumdar-Ghosh (MG) model has an …