Abstract
We report the realization of a Bose-Einstein condensate of europium atoms, which is a strongly dipolar species with unique properties, a highly symmetric electronic ground state and a hyperfine structure. By means of evaporative cooling in a crossed optical dipole trap, we produce a condensate of containing up to atoms. We estimate the scattering length of to be after comparing the velocities of expansion of condensates to different orientations of the atomic magnetic moments, where is the Bohr radius. We observe deformation of the condensate in the vicinity of the Feshbach resonance at 1.32 G with a width of 10 mG.
- Received 24 July 2022
- Revised 23 September 2022
- Accepted 12 October 2022
DOI:https://doi.org/10.1103/PhysRevLett.129.223401
© 2022 American Physical Society
Physics Subject Headings (PhySH)
synopsis
A Dense, Cold Gas of Europium Atoms
Published 22 November 2022
A Bose-Einstein condensate of europium atoms provides a new experimental platform for studying quantum spin interactions.
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