



@article {1185,
	title = {Realizing Fractional Chern Insulators with Dipolar Spins},
	journal = {Physical Review Letters},
	volume = {110},
	year = {2013},
	month = {2013/4/29},
	abstract = {  Strongly correlated quantum systems can exhibit exotic behavior controlled by
topology. We predict that the \nu=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 ultra-cold polar molecules trapped
in a deep optical lattice. While the orbital motion of the molecules is pinned,
at finite densities, the rotational excitations form a fractional Chern
insulator. We present a detailed experimental blueprint for KRb, and
demonstrate that the energetics are consistent with near-term capabilities.
Prospects for the realization of such phases in solid-state dipolar systems are
discussed as are their possible applications.
},
	doi = {10.1103/PhysRevLett.110.185302},
	url = {http://arxiv.org/abs/1212.4839v1},
	author = {Norman Y. Yao and Alexey V. Gorshkov and Chris R. Laumann and Andreas M. L{\"a}uchli and Jun Ye and Mikhail D. Lukin}
}
