Transition from a two-dimensional superfluid to a one-dimensional Mott insulator

Details Transition from a two-dimensional superfluid to a one-dimensional Mott insulator Transition from a two-dimensional superfluid to a one-dimensional Mott insulator

2007-01-25

arxiv.org/abs/cond-mat/0701616v2

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures. Slightly revised according to referee requests

Scientific paper

10.1103/PhysRevLett.99.110401

A two-dimensional system of atoms in an anisotropic optical lattice is studied theoretically. If the system is finite in one direction, it is shown to exhibit a transition between a two-dimensional superfluid and a one-dimensional Mott insulating chain of superfluid tubes. Monte Carlo simulations are consistent with the expectation that the phase transition is of Kosterlitz-Thouless type. The effect of the transition on experimental time-of-flight images is discussed.

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