Single ion as a three-body reaction center in an ultracold atomic gas.

  title={Single ion as a three-body reaction center in an ultracold atomic gas.},
  author={Arne H{\"a}rter and Artjom Kr{\"u}kow and Andreas Brunner and Wolfgang Schnitzler and Stefan Schmid and Johannes Hecker Denschlag},
  journal={Physical review letters},
  volume={109 12},
We report on three-body recombination of a single trapped Rb(+) ion and two neutral Rb atoms in an ultracold atom cloud. We observe that the corresponding rate coefficient K(3) depends on collision energy and is about a factor of 1000 larger than for three colliding neutral Rb atoms. In the three-body recombination process large energies up to several 0.1 eV are released leading to an ejection of the ion from the atom cloud. It is sympathetically recooled back into the cloud via elastic binary… 

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