Hannover 2010 – scientific programme

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A: Fachverband Atomphysik

A 22: Cold Molecules (with MO)

A 22.3: Talk

Thursday, March 11, 2010, 14:30–14:45, F 142

Photoassociative creation of ⁶Li-⁴⁰K molecules in a magneto-optical trap — •Armin Ridinger, Saptarishi Chaudhuri, Thomas Salez, Ulrich Eismann, Frédéric Chevy, and Christophe Salomon — Ecole Normale Supérieure, 24, rue Lhomond, 75005 Paris, France

The recent realization of gases of ultra-cold molecules in their vibrational ground state has opened a new frontier in atomic physics. However, efficient atom-molecule conversion by photoassociation (PA) requires a precise knowledge of the molecular potential under study. In this talk I will report on a preliminary study of photoassociation spectroscopy of ⁶Li- ⁴⁰K in a magneto-optical trap. In particular we observed more than 40 clearly resolved rovibrational levels of the electronically excited LiK-molecule within 350 GHz below the 4²P_3/2 atomic limit of ⁴⁰K allowing for an accurate determination of the interatomic potential parameters.