Resonant Atom-Dimer Relaxation in Ultracold Atoms

Details Resonant Atom-Dimer Relaxation in Ultracold Atoms Resonant Atom-Dimer Relaxation in Ultracold Atoms

2009-02-19

arxiv.org/abs/0902.3410v2

Europhys.Lett.86:53003,2009

Physics

Condensed Matter

Other Condensed Matter

5 pages, 2 figures, published version, minor change in results

Scientific paper

10.1209/0295-5075/86/53003

Three-body systems with large scattering length display universal phenomena associated with a discrete scaling symmetry. These phenomena include resonant enhancement of three-body loss rates when an Efimov three-body resonance is at the scattering threshold. In particular, there can be resonant peaks in the atom-dimer relaxation rate for large positive scattering length. We improve upon earlier studies and calculate the atom-dimer relaxation rate as a function of temperature using a Bose-Einstein distribution for the thermal average. As input, we use calculations of the atom-dimer scattering phase shifts from effective field theory.

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