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Magnetic Field Dependence of Ultracold Inelastic Collisions near a Feshbach Resonance

J. L. Roberts·N. R. Claussen·S. L. Cornish·C. E. Wieman
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Abstract

Inelastic collision rates for ultracold $^{85}$Rb atoms in the F=2 m$_{f}$=-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 $^{85}$Rb Bose-Einstein condensate with a highly adjustable scattering length.

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J. L. Roberts, N. R. Claussen, S. L. Cornish, C. E. Wieman. 2000-05-29. Magnetic Field Dependence of Ultracold Inelastic Collisions near a Feshbach Resonance. https://doi.org/10.1103/physrevlett.85.728

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