Ultra-cold atomic and molecular gases offer a unique possibility to realize a range of novel interacting manybody
systems. Immediate research plans concern arrays of one-dimensional dipolar gases that can be realized
using optical lattices. The dipolar interactions lead to a coupling between the one-dimensional chains and, due
to the anisotropy of the interactions, one expects a rich phase diagram. First studies address bosons in planar
arrays of one-dimensional tubes. We find a sliding Luttinger liquid and various ordered phases.
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