Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 61: Quantum Gases: Fermions II
Q 61.8: Vortrag
Freitag, 4. März 2016, 12:45–13:00, e001
Observation of an orbital interaction-induced Feshbach resonance in 173Yb — Moritz Höfer1,2, •Luis Riegger1,2, Francesco Scazza1,2, Christian Hofrichter1,2, Diogo Rio Fernandes1,2, Immanuel Bloch1,2, Meera M. Parish3, Jesper Levinsen3, and Simon Fölling1,2 — 1Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany — 2Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany — 3School of Physics and Astronomy, Monash University, Victoria 3800, Australia
We report on the experimental observation of a novel inter-orbital Feshbach resonance in ultracold 173Yb atoms, which opens the possibility of tuning the interactions between the 1S0 and 3P0 metastable state, both possessing vanishing total electronic angular momentum. The resonance is observed at experimentally accessible magnetic field strengths and occurs universally for all hyperfine state combinations. We characterize the resonance in the bulk via inter-orbital cross-thermalization as well as in a three-dimensional lattice using high-resolution clock-line spectroscopy.