Phase transitions and adiabatic preparation of a fractional Chern insulator in a boson cold-atom model
Phase transitions and adiabatic preparation of a fractional Chern insulator in a boson cold-atom model
We investigate the fate of hardcore bosons in a Harper-Hofstadter model which was experimentally realized by Aidelsburger et al. [Nat. Phys. 11, 162 (2015)] at half-filling of the lowest band. We discuss the stability of an emergent fractional Chern insulator (FCI) state in a finite region of the phase diagram …