4.2 Article

Observation of magnetic Feshbach resonances between Cs and 173Yb

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PHYSICAL REVIEW RESEARCH
卷 4, 期 4, 页码 -

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AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.4.043072

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  1. UK Engineering and Physical Sciences Research Council [EP/P01058X/1, EP/T015241/1]
  2. Royal Society [URF\R1\201134]

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We report the observation of magnetic Feshbach resonances between Yb-173 and Cs-133, where resonant atom loss is observed due to the resonances at around 622 G and 702 G. The observed splittings of Yb nuclear spin components are attributed to its interaction with Cs electronic spin, which also provides the main coupling mechanism for the observed resonances. The experimental results are in good agreement with theoretical predictions.
We report the observation of magnetic Feshbach resonances between Yb-173 and Cs-133. In a mixture of Cs atoms prepared in the ( f = 3, m(f) = 3) state and unpolarized fermionic Yb-173, we observe resonant atom loss due to two sets of magnetic Feshbach resonances around 622 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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