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A: Fachverband Atomphysik
A 9: Ultracold Matter III – Fermions (joint session Q/A)
A 9.1: Talk
Tuesday, March 3, 2026, 11:00–11:15, P 2
Quantum gas microscopy of three-flavor Hubbard systems — •Jan Deppe1, Jirayu Mongkolkiattichai2, Liyu Liu2, Sohail Dasgupta3, Kaden R. A. Hazzard3, and Peter Schauss1,2 — 1Institute for Quantum Physics, University of Hamburg — 2University of Virginia — 3Rice University
This talk will highlight our recent published results at our quantum gas microscope. We demonstrate site- and flavor-resolved imaging of three-component Fermi gases in the Hubbard regime. Extending beyond the SU2 case, three-flavor systems allow access to a wide range of novel exotic quantum phases relevant for models of quantum chromodynamics in lattices. Using the three lowest hyperfine states of Li 6, we realize a balanced mixture in a 2D square lattice with individually tunable interactions for all three flavor pairs.
Our measurements reveal the formation of three-flavor Mott insulators, flavor-selective localization, and selective pairing, observed at temperatures approaching the tunneling scale. Flavor-resolved detection enables reconstruction of pairing correlations, including both on-site and nearest-neighbor contributions, and allows us to directly detect triply occupied sites (triplons), which remain stable despite strong interactions. By exploiting full interaction control via Feshbach resonances, we map out the phase diagram of the three-flavor Fermi system, identifying regimes of flavor-selective pairing, competing attractive pairing, and the Mott-insulating regime.
Finally, it will shortly present the relocation of the experiment from Charlottesville, USA, to Hamburg, Germany and its current state.
Keywords: Hubbard Model; quantum gas microscopy; spin-resolved imaging; Mott insulator