40K-87Rb Feshbach resonances: Modeling the interatomic potential

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Klempt, C.; Henninger, T.; Topic, O.; Will, J.; Ertmer, W.; et al.: 40K-89Rb Feshbach resonances: Modeling the interatomic potential. In: Physical Review A 76 (2007), Nr. 2, 20701. DOI: https://doi.org/10.1103/PhysRevA.76.020701

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Abstract: 
We have observed 28 heteronuclear Feshbach resonances in ten spin combinations of the hyperfine ground states of a 40K−87Rb mixture. The measurements were performed by observing the loss rates from an atomic mixture at magnetic fields between 0 and 700G. These data were used to significantly refine an interatomic potential derived from molecular spectroscopy, yielding a highly consistent model of the 40K−87Rb interaction. Thus, the measured resonances can be assigned to the corresponding molecular states. In addition, this potential allows for an accurate calculation of the energy differences between highly excited levels and the rovibrational ground level. This information is of particular relevance for the formation of deeply bound heteronuclear molecules. Finally, the model is used to predict Feshbach resonances in mixtures of 87Rb combined with 39K or 41K.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: article
Publishing status: publishedVersion
Issue Date: 2007
Appears in Collections:Fakultät für Mathematik und Physik

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1 image of flag of Germany Germany 23 69.70%
2 image of flag of China China 5 15.15%
3 image of flag of United States United States 2 6.06%
4 image of flag of No geo information available No geo information available 1 3.03%
5 image of flag of United Kingdom United Kingdom 1 3.03%
6 image of flag of Switzerland Switzerland 1 3.03%

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