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Stuttgart 2012 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 13: Cold Molecules I

Q 13.5: Talk

Monday, March 12, 2012, 15:00–15:15, V38.03

Two-Photon-Spectroscopy of YbRb-Towards paramagnetic moleculesFrank Münchow, •Cristian Bruni, Maximilian Madalinski, 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. Here we report on the spectroscopic investigation of vibrational levels in the electronic ground state of the heteronuclear molecule 176Yb87Rb. Using two-photon photoassociation spectroscopy in a laser-cooled mixture of 176Yb and 87Rb we are able to determine the binding energies of weakly-bound vibrational levels. By means of Autler-Townes spectroscopy we obtain transition rates between vibrational levels of different molecular states. This knowledge is a crucial step towards the realization of YbRb ground state molecules.

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