Photoassociation as a probe of Feshbach resonances in cold-atom scattering

F.A. Abeelen, van, D.J. Heinzen, B.J. Verhaar

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    We investigate theoretically the influence of magnetically tunable Feshbach collision resonances on the photoassociation spectra of ultracold atoms. As an example we consider recently predicted resonances for 85Rb atoms. For excitation to the 85Rb2 0g-(S1/2+P1/2) electronic state, we predict that the photoassociation rate is resonantly enhanced by at least two orders of magnitude. We find that photoassociation could serve as a useful probe with which to study Feshbach resonances in ultracold collisions. In turn, these resonances should be very important to Bose-condensed gases, and more generally, to coherent atom optics.
    Original languageEnglish
    Pages (from-to)R4102-R4105
    Number of pages4
    JournalPhysical Review A: Atomic, Molecular and Optical Physics
    Issue number6
    Publication statusPublished - 1998


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