Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms

Details Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms

2007-09-06

arxiv.org/abs/0709.0827v3

Physics

Atomic Physics

4 pages, 4 figures

Scientific paper

We have experimentally realized a hybrid trap for ultracold paramagnetic rubidium and diamagnetic ytterbium atoms by combining a bichromatic optical dipole trap for ytterbium with a Ioffe-Pritchard-type magnetic trap for rubidium. In this hybrid trap, sympathetic cooling of five different ytterbium isotopes through elastic collisions with rubidium was achieved. A strong dependence of the interspecies collisional cross section on the mass of the ytterbium isotope was observed.

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