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    Multi-channel modelling of the formation of vibrationally cold polar KRb molecules

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    Kotochigova_2009_New_J._Phys._ ...
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    Genre
    Journal Article
    Date
    2009-05-14
    Author
    Kotochigova, S
    Tiesinga, E
    Jullenne, PS
    Subject
    quant-ph
    quant-ph
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/6073
    
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    DOI
    10.1088/1367-2630/11/5/055043
    Abstract
    We describe the theoretical advances that influenced the experimental creation of vibrationally and translationally cold polar 40K 87Rb molecules [1, 2]. Cold molecules were created from very-weakly bound molecules formed by magnetic field sweeps near a Feshbach resonance in collisions of ultra-cold 40K and 87Rb atoms. Our analysis include the multi-channel bound-state calculations of the hyperfine and Zeeman mixed X1S- and a3Σ+ vibrational levels. We find excellent agreement with the hyperfine structure observed in experimental data. In addition, we studied the spin-orbit mixing in the intermediate state of the Raman transition. This allowed us to investigate its effect on the vibrationally averaged transition dipóle moment to the lowest rovibrational level of the X1S+ state. Finally, we obtained an estimate of the polarizability of the initial and final rovibrational states of the Raman transition near frequencies relevant for optical trapping of the molecules. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
    Citation to related work
    IOP Publishing
    Has part
    New Journal of Physics
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    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.34944/dspace/6055
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