Ultracold Fermionic Feshbach Molecules of ${}^{23}$Na${}^{40}$K

Cheng-Hsun Wu, Jee Woo Park, Peyman Ahmadi +2

We report on the formation of ultracold fermionic Feshbach molecules of ${}^{23}$Na${}^{40}$K, the first fermionic molecule that is chemically stable in its ground state. The lifetime…