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arXiv · 2211.07111

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

Kieran F. Thomas·Zhuoxian Ou·Bryce M. Henson·Angela A. Baiju·Sean S. Hodgman·Andrew G. Truscott
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Abstract

We report on the achievement of quantum degeneracy in both components of a Bose-Fermi mixture of metastable helium atoms, $^4$He* and $^3$He*. Degeneracy is achieved via Doppler cooling and forced evaporation for $^4$He*, and sympathetically cooling $^3$He* with $^4$He*. We discuss our simplified implementation, along with the high versatility of our system. This technique is able to produce a degenerate Fermi gas with a minimum reduced temperature of $T/T_F=0.14(1)$, consisting of $2.5 \times 10^4$ $^3$He* atoms. Due to the high internal energy of both isotopes single atom detection is possible, opening the possibility of a large number of experiments into Bose-Fermi mixtures.

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Kieran F. Thomas, Zhuoxian Ou, Bryce M. Henson, Angela A. Baiju, Sean S. Hodgman, Andrew G. Truscott. 2022-11-14. Production of a highly degenerate Fermi gas of metastable helium-3 atoms. https://doi.org/10.1103/physreva.107.033313

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