Broad Feshbach resonance with a large background scattering length in a fermionic atom-molecule mixture

Zhen Su, Tong-Hui Shou, Huan Yang +6

We report the observation of a broad magnetic Feshbach resonance with a large background scattering length in an ultracold fermionic mixture of ${}^{23}$Na${}^{40}$K molecules and $^{4…