Phase Diagram of the Commensurate Two-Dimensional Disordered Bose-Hubbard Model
Phase Diagram of the Commensurate Two-Dimensional Disordered Bose-Hubbard Model
We establish the full ground state phase diagram of the disordered Bose-Hubbard model in two dimensions at a unity filling factor via quantum Monte Carlo simulations. Similarly to the three-dimensional case we observe extended superfluid regions persisting up to extremely large values of disorder and interaction strength which, however, have …