2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/22462We show that a two-dimensional (2D) array of 1D interacting boson tubes has a deconfinement transition between a 1D Mott insulator and a 3D superfluid for commensurate fillings and a dimensional crossover for the incommensurate case. We determine the phase diagram and excitations of this system and discuss the consequences for Bose condensates loaded in 2D optical lattices.4 pages, 1 fig. Revision: simplified presentation of resultsSoft Condensed MatterStrongly Correlated Electronstext