Superfluidity of Interacting Bosonic Mixtures in Optical Lattices
Superfluidity of Interacting Bosonic Mixtures in Optical Lattices
We report the observation of many-body interaction effects for a homonuclear bosonic mixture in a three-dimensional optical lattice with variable state dependence along one axis. Near the superfluid-to-Mott insulator transition for one component, we find that the presence of a second component can reduce the apparent superfluid coherence, most significantly …