Deconfinement in a 2D optical lattice of coupled 1D boson systems

Details Deconfinement in a 2D optical lattice of coupled 1D boson systems Deconfinement in a 2D optical lattice of coupled 1D boson systems

2003-10-16

arxiv.org/abs/cond-mat/0310382v2

Phys. Rev. Lett. 92, 130405 (2004)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 1 fig. Revision: simplified presentation of results

Scientific paper

10.1103/PhysRevLett.92.130405

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.

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