In a magneto-optical trap (MOT) we are able to simultaneously trap and cool 7Li and Na. We investigated the loading behavior of the cloud of Li atoms in presence of the overlapped cloud of cold Na atoms, and, by blocking the weak repumping beam for Na, compared it with the loading curve for Li atoms only. Out of these loading curves we calculated the collision cross-section of Na on Li to be 10-11 cm 3 /s.

Journal of Physics D Applied PhysicsJan 1, 20020 citations

The European Physical Journal D

Cross-section for collisions of ultracold $ \mathsf {^7}$ Li with Na

Volker Wippel, Christopher Binder, Laurentius Windholz

Published Oct 1, 2002• 9 citations

Publisher

DOI: 10.1140/epjd/e2002-00175-2

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