Hannover 2016 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 7: Ultracold Atoms, Ions and Molecules II (with A)
Q 7.6: Talk
Monday, February 29, 2016, 15:45–16:00, e001
News from the Garching 23Na40K mixture experiment — •Frauke Seeßelberg1, Nikolaus Buchheim1, Zhenkai Lu1, Roman Bause1, Tobias Schneider1, Immanuel Bloch1,2, and Christoph Gohle1 — 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 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.
Our experimental apparatus is capable of creating ultracold sodium and potassium mixtures aiming towards ultracold groundstate 23Na40K molecules.
To obtain molecules in their absolute vibrational, rotational and hyperfine ground state, stimulated Raman adiabatic passage (STIRAP) has to be implemented. This is a two photon process capable of transferring weakly bound Feshbach molecules via an intermediate, excited molecular state to the molecular ground state with high efficiency.
With our apparatus we are also capable of analyzing the properties of a small number of potassium atoms immersed into a degenerate Bose gas of sodium atoms. Under these conditions signatures of the Bose polaron can be observed.