Spontaneous dissociation of long-range Feshbach molecules.

@article{Khler2005SpontaneousDO,
  title={Spontaneous dissociation of long-range Feshbach molecules.},
  author={T. K{\"o}hler and E. Tiesinga and P. Julienne},
  journal={Physical review letters},
  year={2005},
  volume={94 2},
  pages={
          020402
        }
}
We study the spontaneous dissociation of diatomic molecules produced in cold atomic gases via magnetically tunable Feshbach resonances. We provide a universal formula for the lifetime of these molecules that relates their decay to the scattering length and the loss rate constant for inelastic spin relaxation. Our universal treatment as well as our exact coupled channels calculations for 85Rb dimers predict a suppression of the decay over several orders of magnitude when the scattering length is… Expand
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