Erratum: Expansion of Bose-Hubbard Mott insulators in optical lattices Erratum: Expansion of Bose-Hubbard Mott insulators in optical lattices [Phys. Rev. A 84, 043610 (2011)]

摘要

(nonzero Vx and Vy = 0), while open boundary conditions were applied in the y direction (a box trap in the y direction). Thenexpansion followed after turning off the confining potential along x, i.e., setting Vx = 0. We have found that, due to an errornin the input files, the reported numerical calculations correspond to initial states prepared as explained, but expanding in thenpresence of periodic (not open) boundary conditions in the y direction. The figures below are corrected versions of Figs. 2, 3,nand 4 in the paper, when open boundary conditions are applied during the expansion.