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arxiv: cond-mat/0508584 · v2 · submitted 2005-08-24 · ❄️ cond-mat.other

Bose-Einstein Condensates in Rotating Lattices

Rajiv Bhat (1) , L. D. Carr (2) , M. J. Holland (1) ((1) JILA , National Institute of Standards , Technology , Department of Physics , University of Colorado-Boulder , (2) Colorado School of Mines) This is my paper
classification ❄️ cond-mat.other
keywords latticerotatingbose-einsteinsquaresymmetriesbose-hubbardbosonscondensate
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Strongly interacting bosons in 2D in a rotating square lattice are investigated via a modified Bose-Hubbard Hamiltonian. Such a system corresponds to a rotating lattice potential imprinted on a trapped Bose-Einstein condensate. Second-order quantum phase transitions between states of different symmetries are observed at discrete rotation rates. For the square lattice we study, there are four possible ground-state symmetries.

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