@article{3287,
  author = {N. Yao and Alexey Gorshkov and C. Laumann and A. Läuchli and Jun Ye and M. Lukin},
  title = {Realizing Fractional Chern Insulators in Dipolar Spin Systems},
  abstract = {Strongly correlated quantum systems can exhibit exotic behavior controlled by topology. We predict that the ν=1/2 fractional Chern insulator arises naturally in a two-dimensional array of driven, dipolar-interacting spins. As a specific implementation, we analyze how to prepare and detect synthetic gauge potentials for the rotational excitations of ultracold polar molecules trapped in a deep optical lattice. With the motion of the molecules pinned, under certain conditions, these rotational excitations form a fractional Chern insulating state. We present a detailed experimental blueprint for its realization and demonstrate that the implementation is consistent with near-term capabilities. Prospects for the realization of such phases in solid-state dipolar systems are discussed as are their possible applications.},
  year = {2013},
  journal = {Physical Review Letters},
  volume = {110},
  pages = {185302},
  month = {2013-04},
  issn = {0031-9007},
  doi = {10.1103/PhysRevLett.110.185302},
}