Ho, A F , Cazalilla, M A and Giamarchi, T (2004) Deconfinement in a 2D optical lattice of coupled 1D boson systems. Physical Review Letters, 92 (13).
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We 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.
This is a Submitted version This version's date is: 2/4/2004 This item is not peer reviewed
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