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Molecular states near a collision threshold

TitleMolecular states near a collision threshold
Publication TypeJournal Article
Year of Publication2009
AuthorsP. S. Julienne
Date Publishedfeb

This chapter summarizes the properties of near-threshold molecular states that can be formed from ultracold atoms. The properties of the states for a single potential are characterized for different partial waves using the concepts of quantum defect theory for a van der Waals potential. Examples are given for various isotopes of the Yb\_2 molecule. Magnetically tunable Feshbach resonances or photoassociation resonances are characterized by the multichannel version of the theory. Examples of the latter are given for the KRb molecule.