Cold atoms in rotating optical lattice with nearest neighbour interaction

Details Cold atoms in rotating optical lattice with nearest neighbour interaction Cold atoms in rotating optical lattice with nearest neighbour interaction

2010-05-24

arxiv.org/abs/1005.4391v2

Phys. Rev. A 82, 063617 (2010)

Physics

Condensed Matter

Quantum Gases

Slightly revised, Accepted in Physical Review A for publication

Scientific paper

10.1103/PhysRevA.82.063617

Extended Bose Hubbard models with nearest neighbour interaction describe minimally the effect of long range interaction on ultra cold atoms in deep optical lattices. Rotation of such optical lattices subject such neutral cold atoms to the effect of an artificial magnetic field. The modification of the phase boundaries of the density wave and Mott Insulator phases due to this rotation are shown to be related to the edge spectrum of spinorial and scalar Harper equation. Corresponding profiles of the checkerboard vortex states with sublattice modulated superfluid order parameter near density wave phase boundary are calculated.

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