Scaling functions applied to three-body recombination of Cesium-133 atoms

Details Scaling functions applied to three-body recombination of Cesium-133 atoms Scaling functions applied to three-body recombination of Cesium-133 atoms

2007-11-13

arxiv.org/abs/0711.1908v2

Phys.Rev.A78:062717,2008

Physics

Condensed Matter

Other Condensed Matter

13 pages, 7 figures, agrees with published version, title changed

Scientific paper

We demonstrate the implications of Efimov physics in the recently measured recombination rate of Cesium-133 atoms. By employing previously calculated results for the energy dependence of the recombination rate of Helium-4 atoms, we obtain three independent scaling functions that are capable of describing the recombination rates over a large energy range for identical bosons with large scattering length. We benchmark these and previously obtained scaling functions by successfully comparing their predictions with full atom-dimer phase shift calculations with artificial Helium-4 potentials yielding large scattering lengths. Exploiting universality, we finally use these functions to determine the 3-body recombination rate of Cesium-133 atoms with large positive scattering length, compare our results to experimental data obtained by the Innsbruck group and find excellent agreement.

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