Collisional relaxation of Feshbach molecules and three-body recombination in Rb-87 Bose-Einstein condensates

G. Smirne, R. M. Godun, D. Cassettari, V. Boyer, C. J. Foot, T. Volz, N. Syassen, S. Duerr, G. Rempe, M. D. Lee, K. Goral, T. Köhler

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    We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb-87 Bose-Einstein condensate close to 1007 G. Our exact treatments of three-particle scattering explicitly include the dependence of the interactions on the atomic Zeeman levels. The Feshbach resonance distorts the entire diatomic energy spectrum, causing interferences in both loss phenomena. Our two independent experiments confirm the predicted recombination loss over a range of rate constants that spans four orders of magnitude.
    Original languageEnglish
    Article number020702
    Number of pages4
    JournalPhysical Review A
    Issue number2
    Publication statusPublished - 2007

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