Insulators and Metals With Topological Order and Discrete Symmetry Breaking

@article{Chatterjee2017InsulatorsAM,
  title={Insulators and Metals With Topological Order and Discrete Symmetry Breaking},
  author={Shubhayu Chatterjee and Subir Sachdev},
  journal={Physical Review B},
  year={2017},
  volume={95},
  pages={205133}
}
Numerous experiments have reported discrete symmetry breaking in the high temperature pseudogap phase of the hole-doped cuprates, including breaking of one or more of lattice rotation, inversion, or time-reversal symmetries. In the absence of translational symmetry breaking or topological order, these conventional order parameters cannot explain the gap in the charged fermion excitation spectrum in the anti-nodal region. Zhao et al. (1601.01688) and Jeong et al. (arXiv:1701.06485) have also… 

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