Observation of magnetic Feshbach resonances between Cs and ¹⁷³Yb

2022/08/12 by Tobias Franzen, Alexander Guttridge, Franzen, Tobias +11 · 1 citation
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #physics.atom-ph

paper · pdf · doi:10.48550/arxiv.2208.06291

7 pages, 2 figures

arxiv created 2022/08/12 · arxiv updated 2022/08/15

Abstract

We report the first observation of magnetic Feshbach resonances between ¹⁷³Yb and ¹³³Cs. In a mixture of Cs atoms prepared in the (f=3, m_f=3) state and unpolarized fermionic ¹⁷³Yb we observe resonant atom loss due to two sets of magnetic Feshbach resonances around 622~G and 702~G. Resonances for individual Yb nuclear spin components m_i,Yb are split by its interaction with the Cs electronic spin, which also provides the main coupling mechanism for the observed resonances. The observed splittings and relative resonance strengths are in good agreement with theoretical predictions from coupled-channel calculations.

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