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

2025/05/30 by Jasmine Kalia, Jared Rivera, Kalia, Jasmine +8 · 4 citations
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas) #Quantum, superfluid, helium dynamics

paper · pdf · doi:10.48550/arxiv.2506.00177

openalex publication_date 2025/05/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We report the realization of a degenerate mixture of ¹⁶⁶Er and ⁷Li 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.

Citations

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