Correlated phases of bosons in tilted, frustrated lattices

  title={Correlated phases of bosons in tilted, frustrated lattices},
  author={Susanne Pielawa and Takuya Kitagawa and Erez Berg and Subir Sachdev},
We study the `tilting' of Mott insulators of bosons into metastable states. These are described by Hamiltonians acting on resonant subspaces, and have rich possibilities for correlated phases with non-trivial entanglement of pseudospin degrees of freedom encoded in the boson density. We extend a previous study (arXiv:cond-mat/0205169) of cubic lattices to a variety of lattices and tilt directions in 2 dimensions: square, decorated square, triangular, and kagome. For certain configurations three… CONTINUE READING