



@article {1197,
	title = {Topologically Protected Quantum State Transfer in a Chiral Spin Liquid},
	journal = {Nature Communications},
	volume = {4},
	year = {2013},
	month = {2013/3/12},
	pages = {1585},
	abstract = {  Topology plays a central role in ensuring the robustness of a wide variety of
physical phenomena. Notable examples range from the robust current carrying
edge states associated with the quantum Hall and the quantum spin Hall effects
to proposals involving topologically protected quantum memory and quantum logic
operations. Here, we propose and analyze a topologically protected channel for
the transfer of quantum states between remote quantum nodes. In our approach,
state transfer is mediated by the edge mode of a chiral spin liquid. We
demonstrate that the proposed method is intrinsically robust to realistic
imperfections associated with disorder and decoherence. Possible experimental
implementations and applications to the detection and characterization of spin
liquid phases are discussed.
},
	doi = {10.1038/ncomms2531},
	url = {http://arxiv.org/abs/1110.3788v1},
	author = {Norman Y. Yao and Chris R. Laumann and Alexey V. Gorshkov and Hendrik Weimer and Liang Jiang and J. Ignacio Cirac and Peter Zoller and Mikhail D. Lukin}
}
@article {1201,
	title = {Topological Flat Bands from Dipolar Spin Systems},
	journal = {Physical Review Letters},
	volume = {109},
	year = {2012},
	month = {2012/12/26},
	abstract = {  We propose and analyze a physical system that naturally admits
two-dimensional topological nearly flat bands. Our approach utilizes an array
of three-level dipoles (effective S = 1 spins) driven by inhomogeneous
electromagnetic fields. The dipolar interactions produce arbitrary uniform
background gauge fields for an effective collection of conserved hardcore
bosons, namely, the dressed spin-flips. These gauge fields result in
topological band structures, whose bandgap can be larger than the corresponding
bandwidth. Exact diagonalization of the full interacting Hamiltonian at
half-filling reveals the existence of superfluid, crystalline, and supersolid
phases. An experimental realization using either ultra-cold polar molecules or
spins in the solid state is considered.
},
	doi = {10.1103/PhysRevLett.109.266804},
	url = {http://arxiv.org/abs/1207.4479v3},
	author = {Norman Y. Yao and Chris R. Laumann and Alexey V. Gorshkov and Steven D. Bennett and Eugene Demler and Peter Zoller and Mikhail D. Lukin}
}
