Dissociation of Feshbach Molecules into Different Partial Waves

Stephan Dürr; Thomas Volz; Niels Syassen; Gerhard Rempe; Eric van Kempen; Servaas Kokkelmans; Boudewijn Verhaar; Harald Friedrich

doi:10.1103/physreva.72.052707

arXiv · cond-mat/0507580

Dissociation of Feshbach Molecules into Different Partial Waves

Stephan Dürr·Thomas Volz·Niels Syassen·Gerhard Rempe·Eric van Kempen·Servaas Kokkelmans·Boudewijn Verhaar·Harald Friedrich

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Abstract

Ultracold molecules can be associated from ultracold atoms by ramping the magnetic field through a Feshbach resonance. A reverse ramp dissociates the molecules. Under suitable conditions, more than one outgoing partial wave can be populated. A theoretical model for this process is discussed here in detail. The model reveals the connection between the dissociation and the theory of multichannel scattering resonances. In particular, the decay rate, the branching ratio, and the relative phase between the partial waves can be predicted from theory or extracted from experiment. The results are applicable to our recent experiment in 87Rb, which has a d-wave shape resonance.

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Stephan Dürr, Thomas Volz, Niels Syassen, Gerhard Rempe, Eric van Kempen, Servaas Kokkelmans, Boudewijn Verhaar, Harald Friedrich. 2005-11-11. Dissociation of Feshbach Molecules into Different Partial Waves. https://doi.org/10.1103/physreva.72.052707

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