141 citations · 373 across the 7 of their papers we have counts for
7 papers
Equation of State and Thermometry of the 2D SU() Fermi-Hubbard Model
Giulio Pasqualetti, Oscar Bettermann, Nelson Darkwah Oppong +6
We characterize the equation of state (EoS) of the SU() Fermi-Hubbard Model (FHM) in a two-dimensional single-layer square optical lattice. We probe the density and the site o…
derivation of lattice gauge theory dynamics for cold gases in optical lattices
Federica Maria Surace, Pierre Fromholz, Nelson Darkwah Oppong +2
We introduce a method for quantum simulation of U lattice gauge theories coupled to matter, utilizing alkaline-earth(-like) atoms in state-dependent optical lattices. The prop…
Probing transport and slow relaxation in the mass-imbalanced Fermi-Hubbard model
Nelson Darkwah Oppong, Giulio Pasqualetti, Oscar Bettermann +4
Constraints in the dynamics of quantum many-body systems can dramatically alter transport properties and relaxation timescales even in the absence of static disorder. Here, we repo…
Quasiparticle lifetime of the repulsive Fermi polaron
Haydn S. Adlong, Weizhe Edward Liu, Francesco Scazza +5
We investigate the metastable repulsive branch of a mobile impurity coupled to a degenerate Fermi gas via short-range interactions. We show that the quasiparticle lifetime of this…
Clock-line photoassociation of strongly bound dimers in a magic-wavelength lattice
Oscar Bettermann, Nelson Darkwah Oppong, Giulio Pasqualetti +3
We report on the direct optical production and spectroscopy of $^1\mathrm{S}_0\mbox{-}^3\mathrm{P}_0$ molecules with large binding energy using the clock transition of $^{171}\math…
Observation of coherent multiorbital polarons in a two-dimensional Fermi gas
Nelson Darkwah Oppong, Luis Riegger, Oscar Bettermann +5
We report on the experimental observation of multiorbital polarons in a two-dimensional Fermi gas of atoms formed by mobile impurities in the metastable $^3\mat…
Localized magnetic moments with tunable spin exchange in a gas of ultracold fermions
Luis Riegger, Nelson Darkwah Oppong, Moritz Höfer +3
We report on the experimental realization of a state-dependent lattice for a two-orbital fermionic quantum gas with strong interorbital spin exchange. In our state-dependent lattic…