Hannover 2020 – scientific programme

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MO: Fachverband Molekülphysik

MO 19: MO Poster 4

MO 19.23: Poster

Thursday, March 12, 2020, 17:00–19:00, Empore Lichthof

Progress on Zeeman slowing of CaF — •Mariia Stepanova, Paul Kaebert, Timo Poll, Maurice Petzold, Supeng Xu, Mirco Siercke, and Silke Ospelkaus — Institut für Quantenoptik, Leibniz Universität Hannover

Ultracold molecules provide distinct advantages in research on precision measurements, ultracold chemistry and simulations of solid state physics. Current experiments are, however, severely restricted by the initial flux of slow and cold molecules, which limits the size of the trappable ensembles. Our group has developed a novel slowing scheme capable of improving this flux by orders of magnitude. We have already demonstrated the feasibility of our method in a proof of principle experiment and are now in the process of combining our scheme with an optimized buffer gas source to greatly enhance the flux of slow, cold molecules. We present our results of the proof of principle experiment on 39K D1-line and our buffer gas cell as a source of rotationally cold molecules. We further show our recent results of mapping out the CaF hyperfine structure in magnetic fields up to 500 Gauss, a necessary step towards implementing Zeeman slowing, and give insights into the future of our experiment.