Quantized Pumping and Topology of the Phase Diagram for a System of Interacting Bosons
Quantized Pumping and Topology of the Phase Diagram for a System of Interacting Bosons
Interacting lattice bosons at integer filling can support two distinct insulating phases, which are separated by a critical point: the Mott insulator and the Haldane insulator [E. G. Dalla Torre, E. Berg, and E. Altman, Phys. Rev. Lett. 97, 260401 (2006).]. The critical point can be gapped out by breaking …