Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics III
Q 62.17: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
Molecular spectroscopy of ultracold 23Na40K — •Frauke Seeßelberg1, Nikolaus Buchheim1, Zhenkai Lu1, Tobias Schneider1, Immanuel Bloch1,2, and Christoph Gohle1 — 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany — 2Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany
Ultracold quantum gases with long-range dipolar interactions promise exciting new possibilities for quantum simulation of strongly interacting many-body systems.
We have constructed an experimental apparatus aiming to create ultracold groundstate 23Na40K molecules. To obtain molecules in their absolute vibrational, rotational and hyperfine ground state we want to implement stimulated Raman adiabatic passage (STIRAP), which is a two photon process capable of transferring weakly bound Feshbach molecules via an intermediate, excited molecular state to the ground state with high efficiency.
Intermediate molecular levels with sufficiently large transition matrix elements to both the initial and the final state can be found in the d/D-potentials of 23Na40K. Here we will present recent spectroscopy results regarding Feshbach molecules and photoassociation towards implementing STIRAP.