Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms
Tassy, S. · Nemitz, N. · Baumer, F. · Höhl, C. · Batär, A. · Görlitz, A.
Original · EN
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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