Elastic and inelastic collisions of 6Li in magnetic and optical traps
M. Houbiers, H. T. C. Stoof, W. I. McAlexander, R. G. Hulet
Abstract
We use a full coupled channels method to calculate collisional properties of magnetically or optically trapped ultracold 6Li. The magnetic field dependence of the s-wave scattering lengths of several mixtures of hyperfine states are determined, as are the decay rates due to exchange collisions. In one case, we find Feshbach resonances at B=0.08 T and B=1.98 T. We show that the exact coupled channels calculation is well approximated over the entire range of magnetic fields by a simple analytical calculation.
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