Formation of ultracold dipolar molecules in the lowest vibrational levels by photoassociation

Details Formation of ultracold dipolar molecules in the lowest vibrational levels by photoassociation Formation of ultracold dipolar molecules in the lowest vibrational levels by photoassociation

2008-12-04

arxiv.org/abs/0812.1002v1

Physics

Atomic Physics

Submitted to Faraday Discussions 142: Cold and Ultracold Molecules 18 pages, 8 figures

Scientific paper

We recently reported the formation of ultracold LiCs molecules in the rovibrational ground state X1Sigma+,v''=0,J''=0 [J. Deiglmayr et al., PRL 101, 133004 (2008)]. Here we discuss details of the experimental setup and present a thorough analysis of the photoassociation step including the photoassociation line shape. We predict the distribution of produced ground state molecules using accurate potential nergy curves combined with an ab-initio dipole transition moment and compare this prediction with experimental ionization spectra. Additionally we improve the value of the dissociation energy for the X1Sigma+ state by high resolution spectroscopy of the vibrational ground state.

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