Staggered ground states in an optical lattice

  title={Staggered ground states in an optical lattice},
  author={D. J. Johnstone and Niclas Westerberg and Callum W. Duncan and Patrik Ohberg},
  journal={Physical Review A},
Non-standard Bose-Hubbard models can exhibit rich ground state phase diagrams, even when considering the one-dimensional limit. Using a self-consistent Gutzwiller diagonalisation approach, we study the mean-field ground state properties of a long-range interacting atomic gas in a one-dimensional optical lattice. We first confirm that the inclusion of long-range two-body interactions to the standard Bose-Hubbard model introduces density wave and supersolid phases. However, the introduction of… Expand
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