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Production of a degenerate Fermi gas of metastable helium-3 atoms

W. Vassen·T. Jeltes·J. M. McNamara·A. S. Tychkov
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Abstract

We give an overview of the experiments at the Laser Centre of the Vrije Universiteit in Amsterdam on ultracold gases of metastable helium-4 and helium-3 as well as mixtures of both isotopes. We describe our experimental setup and discuss our experiments on Bose-Einstein condensation of 4He* (more than 10 million atoms in a BEC) and sympathetic cooling of 3He* towards Fermi degeneracy (more than 1 million atoms below the Fermi temperature as well as realization of a degenerate boson-fermion mixture). We also present our results on Penning Ionization in ~1 mK clouds containing a single isotope (homonuclear losses) or a mixture of both isotopes (heteronuclear losses).

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W. Vassen, T. Jeltes, J. M. McNamara, A. S. Tychkov. 2006-10-16. Production of a degenerate Fermi gas of metastable helium-3 atoms. https://arxiv.org/abs/cond-mat/0610414

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