Andy Li presents his research during a poster session at the Northwestern site visit by the NSF MPS Directorate. (Photo credit: Roger Anderson)

The problem of interacting bosons in frustrated lattices is an intricate one due to the absence of a unique minimum in the single-particle dispersion where macroscopic number of bosons can condense. In this paper, we consider a family of tight-binding models with macroscopically degenerate lowest energy bands, separated from other bands by a gap.We predict […]