Detecting topological phases in cold atoms.

@article{Liu2013DetectingTP,
  title={Detecting topological phases in cold atoms.},
  author={Xiong-Jun Liu and K. T. Law and Tai Kai Ng and Patrick A. Lee},
  journal={Physical review letters},
  year={2013},
  volume={111 12},
  pages={120402}
}
Chern insulators are band insulators which exhibit a gap in the bulk and gapless excitations in the edge. Detection of Chern insulators is a serious challenge in cold atoms since the Hall transport measurements are technically unrealistic for neutral atoms. By establishing a natural correspondence between the time-reversal invariant topological insulator and the quantum anomalous Hall system, we show for a class of Chern insulators that the topology can be determined by only measuring Bloch… CONTINUE READING

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