Ultracold three-body collisions near overlapping Feshbach resonances

Details Ultracold three-body collisions near overlapping Feshbach resonances Ultracold three-body collisions near overlapping Feshbach resonances

2009-05-06

arxiv.org/abs/0905.0772v2

Physics

Atomic Physics

4 pages, 3 figures, 1 table

Scientific paper

We present a comprehensive collection of ultracold three-body collisions properties near overlapping Feshbach resonances. Our results incorporate variations of all scattering lengths and demonstrate novel collisional behavior, such as atom-molecule interference effects. Taking advantage of the unique ways in which these collisions reflect Efimov physics, new pathways to control atomic and molecular losses open up. Further, we show that overlapping resonances can greatly improve the chances of observing multiple Efimov features in an ultracold quantum gas for nearly any system.

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