Hannover 2020 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 54: Posters: Quantum Optics and Photonics IV

Q 54.1: Poster

Thursday, March 12, 2020, 16:30–18:30, Empore Lichthof

Towards the production of groundstate RbYb — Tobias Franzen, •Bastian Pollklesener, Christian Sillus, and Axel Görlitz — Institut für Experimentalphysik, Heinrich-Heine-Universität Düsseldorf

Ultracold dipolar molecules constitute a promising system for the investigation of topics like ultracold chemistry, novel interactions in quantum gases, precision measurements and quantum information.

Here we report on first experiments in our apparatus for the production of ultracold RbYb molecules. This setup constitutes an improvement of our old apparatus, where the interactions in RbYb and possible routes to molecule production have already been studied extensively [1,2]. In the new setup a major goal is the efficient production of ground state RbYb molecules.

We employ optical tweezers to transport individually cooled samples of Rb and Yb from their separate production chambers to a dedicated science chamber. Here we start to study interspecies interactions of different isotopes by overlapping crossed optical dipole traps. We report of first results of implementing a 3D lattice and using photoassociation spectroscopy on the way towards groundstate molecules.

[1] M. Borkowski et al., PRA 88, 052708 (2013)

[2] C. Bruni et al., PRA 94, 022503 (2016)