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arXiv · 0709.0827

Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms

S. Tassy·N. Nemitz·F. Baumer·C. Höhl·A. Batär·A. Görlitz
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Abstract

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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S. Tassy, N. Nemitz, F. Baumer, C. Höhl, A. Batär, A. Görlitz. 2007-09-06. Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms. https://doi.org/10.1088/0953-4075/43/20/205309

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