Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 32: Poster: Quantum gases, ultracold atoms and molecules

Q 32.89: Poster

Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais

Two-Photon-Spectroscopy of YbRb in a conservative trap - Towards paramagnetic molecules — •Cristian Bruni, Fabian Wolf, and Axel Görlitz — Institut für Experimentalphysik, HHU Düsseldorf, 40225 Düsseldorf

Ultracold heteronuclear molecules offer fascinating perspectives ranging from ultracold chemistry to novel interactions in quantum gases. In our experiment, the ultimate goal is the production of ultracold YbRb molecules in the electronic and rovibrational ground state. The special property of these molecules is that they possess a magnetic as well as an electric dipole moment. One- and and two-photon photoassociation spectroscopy close to the Rb D1-line at 795 nm was already performed in a combined MOT to study the vibrational levels in the electronic ground [1] and one excited state [2] of YbRb. In order to be able to create and trap the molecules these experiments have to be done in conservative traps. We use a magnetic trap for Rb and a near-resonant optical dipole trap for Yb red detuned to the 1S0 to 3P1 intercombination transition at 555.8 nm to simultaneously trap Rb and Yb. Here we report on the current status of our experiment.
M. Borkowski et. al; Scattering lengths in isotopologues of the RbYb system, Phys. Rev. A 88, 052708 (2013)
N. Nemitz, F. Baumer, F. Münchow and A. Görlitz, Phys. Rev. A 79, 061403(R) (2009)

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