Magnetic Field Dependence of Ultracold Inelastic Collisions near a Feshbach Resonance
J. L. Roberts, N. R. Claussen, S. L. Cornish, C. E. Wieman
Abstract
Inelastic collision rates for ultracold 85Rb atoms in the F=2 mf=-2 state have been measured as a function of magnetic field. Dramatic change in the vicinity of a Feshbach resonance at 155 G was observed. Similar to the elastic rate, the inelastic rates show a high peak and a deep trough. Both two- and three-body processes are important, and individual contributions have been determined and compared with theory. This work has made it possible to create an 85Rb Bose-Einstein condensate with a highly adjustable scattering length.
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