Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 27: Poster – Ultra-cold Atoms, Ions and BEC (joint session A/Q)
Q 27.28: Poster
Dienstag, 11. März 2025, 14:00–16:00, Tent
Ultracold strontium quantum simulator for studying open quantum systems — •Jan Geiger1,2, Felix Spriestersbach1,2, Valentin Klüsener1,2, Immanuel Bloch1,2,3, and Sebastian Blatt1,2,3 — 1Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany — 2Munich Center for Quantum Science and Technology, 80799 München, Germany — 3Fakultät für Physik, Ludwig-Maximilians-Universität München, 80799 München, Germany
We simulate an open quantum system using a quantum simulator based on ultracold strontium atoms with state-dependent trapping. This system is implemented by coupling trapped metastable atoms to a structured reservoir, represented by mobile ground-state atoms in a shallow optical lattice. The coupling can be tuned using high-resolution spectroscopy, allowing us to directly address different momenta within the band structure. We show control of the system by characterizing it in one and two dimensions by performing momentum-resolved measurements. Additionally, we can directly study the system in real space using single-atom resolved microscopy. These results open a new perspective for studying open quantum systems in one and two dimensions.
Keywords: Quantum Simulation; Strontium; optical lattice