Strongly interacting ytterbium-173 in state-dependent potentials

Ytterbium-173 features a metastable excited state, the so-called clock state, which we employ to implement two-orbital systems with tunable interactions. The existence of a weakly bound molecular state in the interorbital scattering potential leads to large spin-exchange interaction as well as an orbital Feshbach resonance. We probe a strongly interacting Fermi gas of ytterbium-173 in the presence of an orbital Feshbach resonance and determine the properties of the interacting system in different external confinements. By adding state-dependent mobility to the large spin-exchange present in ytterbium-173, Kondo-like Hamiltonians can be implemented. Our implementation of a state-dependent optical lattice localizes excited-state atoms while ground-state atoms remain mobile. We probe the spin-exchange interaction dynamics in this system and find that it can be resonantly tuned in mixed confinement.