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arXiv · 2506.00177

Creation of a degenerate Bose-Bose mixture of erbium and lithium atoms

Jasmine Kalia·Jared Rivera·Rubaiya R Emran·William J Solorio Hernandez·Kiryang Kwon·Richard J Fletcher
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Abstract

We report the realization of a degenerate mixture of $^{166}$Er and $^{7}$Li atoms in their energetically lowest spin states. The two species are sequentially laser-cooled and loaded into an optical dipole trap, then transported to a glass cell and simultaneously evaporated to degeneracy. Er serves as the coolant for Li, and we observe efficient sympathetic cooling facilitated by a large interspecies elastic scattering cross section. Three-body losses are found to be small, making this platform promising for the study of interacting mixtures with large mass imbalance.

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Jasmine Kalia, Jared Rivera, Rubaiya R Emran, William J Solorio Hernandez, Kiryang Kwon, Richard J Fletcher. 2025-05-30. Creation of a degenerate Bose-Bose mixture of erbium and lithium atoms. https://doi.org/10.1103/jq84-tb52

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