Collisions in a dual-species magneto-optical trap of molecules and atoms
arXiv:2104.09990 · doi:10.1088/1367-2630/ac0c9a
Abstract
We study inelastic collisions between CaF molecules and Rb atoms in a dual-species magneto-optical trap. The presence of atoms increases the loss rate of molecules from the trap. By measuring the loss rates and density distributions, we determine a collisional loss rate coefficient cm/s at a temperature of 2.4 mK. We show that this is not substantially changed by light-induced collisions or by varying the populations of excited-state atoms and molecules. The observed loss rate is close to the universal rate expected in the presence of fast loss at short range, and can be explained by rotation-changing collisions in the ground electronic state.
arXiv comment14 pages, 6 figures. Added a new figure and some further details about the methods; expanded our discussion of the results
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