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Hannover 2010 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 8: Poster: Electronic Spectroscopy

MO 8.4: Poster

Dienstag, 9. März 2010, 16:00–18:30, Lichthof

Fourier-transform spectroscopy of the mixed alkali - alkaline earth molecule LiCa — •Alexander Stein1, Asen Pashov2, Milena Ivanova2, Horst Knöckel1, and Eberhard Tiemann11Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2Department of Physics, Sofia University, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria

The mixed alkali - alkaline earth molecules gain importance in the ultracold physics because ultracold ensembles of alkali atoms and alkaline earth atoms are produced in several international labs. However the spectroscopic information is almost completely missing. We succeeded in producing and observing in a wide range of vibrational and rotational quantum numbers with Fourier transform spectroscopy the molecule LiCa.

First results on the potential energy curves of the ground state and of one excited state will be presented, which are the essential prerequisites for modeling cold collisions in mixed ultracold ensembles of alkali and alkaline earth atoms.

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