Interisotope determination of ultracold rubidium interactions from three high-precision experiments

E.G.M. Kempen, van, S.J.J.M.F. Kokkelmans, D.J. Heinzen, B.J. Verhaar

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    Abstract

    Combining the measured binding energies of four of the most weakly bound rovibrational levels of the /sup 87/Rb/sub 2/ molecule with results of two other recent high-precision experiments, we obtain exceptionally strong constraints on the atomic interaction parameters in a highly model independent analysis. The comparison of /sup 85/Rb and /sup 87/Rb data, where the two isotopes are related by a mass scaling procedure, plays a crucial role. We predict scattering lengths, clock shifts, and Feshbach resonances with an unprecedented level of accuracy. Two of the Feshbach resonances occur at easily accessible magnetic fields in mixed-spin channels. One is related to a d-wave shape resonance
    Original languageEnglish
    Article number093201
    Pages (from-to)093201-1/4
    JournalPhysical Review Letters
    Volume88
    Issue number9
    DOIs
    Publication statusPublished - 2002

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