Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster – Ultracold Matter (joint session Q/A)
Q 42.13: Poster
Wednesday, March 4, 2026, 17:00–19:00, Philo 2. OG
Quantum gas microscopy of exotic Hubbard systems — •Philip Kämmle1, Jan Deppe1, Liyu Liu2, Jirayu Mongkolkiattichai2, Davis Garwood2, Jin Yang2, and Peter Schauss1 — 1Institute for Quantum Physics, University of Hamburg — 2University of Virginia
This poster presents our recent developments in quantum simulation of electronic systems using ultra-cold atoms in geometrically frustrated lattices, as well as three-component fermionic systems that reflect the three flavors in quantum chromodynamics. We illustrate the achievement of a Mott insulator with lithium-6 on a symmetric triangular lattice, featuring a lattice spacing of 1003 nm. Through spin removal techniques, we can isolate individual spins and measure nearest neighbor spin-spin correlations across varying interaction strengths. Additionally, we expand quantum gas microscopy to three-flavor Fermi lattice gases in the Hubbard regime. Using site- and flavor-resolved detection, we investigate the phase diagram of the three-flavor Hubbard model, revealing signs of flavor-selective localization and selective pairing at temperatures as low as the tunneling energy scale. Future work aims to explore dynamical systems through transport measurements in a triangular lattice combined with digital micromirror device (DMD) and spatial light modulator (SLM) potentials, facilitating the study of transport dynamics in customized potential landscapes.
Keywords: Hubbard Model; Triangular lattice; Quantum gas microscopy; Three-flavor systems; Spatial light modulation (SLM)