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Hannover 2013 – scientific programme

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MO: Fachverband Molekülphysik

MO 16: Cold Molecules II

MO 16.1: Talk

Wednesday, March 20, 2013, 11:00–11:15, F 107

Towards a BEC of rovibronic ground state molecules — •Katharina Lauber, Emil Kirilov, Johann Danzl, Manfred Mark, Philipp Weinmann, Florian Meinert, and Hanns-Christoph Nägerl — Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Innsbruck, Austria

An understanding of the scattering properties of ground-state molecules is of great importance for the modeling of molecular interactions and for the realization of molecular Bose-Einstein condensates. In our experiment we create ultracold and dense samples of molecules in their rovibrational ground state trapped in an optical lattice by a coherent optical 4-photon process with the Stimulated Raman Adiabatic Passage (STIRAP) technique while each molecule is trapped in the motional ground state of an individual optical lattice well. With several technical improvements we reach STIRAP efficiencies of approximately 80%. By removing the lattice along one or two directions we investigate the scattering properties in 2D and 1D, respectively. We have measured decay rates and their dependence of the magnetic field.

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