Düsseldorf 2007 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 63: Poster Ultrakalte Moleküle

Q 63.4: Poster

Donnerstag, 22. März 2007, 16:30–18:30, Poster C

Coherent optical transfer of Feshbach molecules to a lower vibrational state — Klaus Winkler¹, •Florian Lang¹, Gregor Thalhammer¹, Peter van der Straten², Rudolf Grimm^1,3, and Johannes Hecker Denschlag¹ — ¹Institut für Experimentalphysik, Universität Innsbruck, Österreich — ²Debye Institute, Universiteit Utrecht, Netherlands — ³Institut für Quantenoptik und Quanteninformation, Innsbruck, Österreich

We have recently¹ demonstrated the realization of an efficient and highly selective transfer scheme, where an ensemble of ⁸⁷Rb₂ Feshbach molecules in an optical lattice is coherently converted to a deeper bound molecular state via stimulated Raman adiabatic passage (STIRAP). In this experiment we reach a single transfer efficiency of 87% and a coherence time of 2ms. The experimental data is well described by our theoretical model without free parameters. The presented scheme can be extended in a straight forward manner for the transfer of ultracold molecules into the absolute vibrational ground state.

[1] cond-mat/0611222, accepted for publication in PRL (2007)