Observation of a Strong Atom-Dimer Attraction in a Mass-Imbalanced Fermi-Fermi Mixture

Michael Jag, Matteo Zaccanti, Marko Cetina +5

We investigate a mixture of ultracold fermionic ${}^{40}$K atoms and weakly bound ${}^6$Li${}^{40}$K dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio…