Comment on "Phase Diagram of a Disordered Boson Hubbard Model in Two Dimensions"
arXiv:cond-mat/0310251
Abstract
We prove that previous claims of observing a direct superfluid-Mott insulator transition in the disordered J-current model are in error because numerical simulations were done for too small system sizes and the authors ignored the rigorous theorem.
1 page, Latex, 1 figure