Critical Percolation without Fine-Tuning on the Surface of a Topological Superconductor.

  title={Critical Percolation without Fine-Tuning on the Surface of a Topological Superconductor.},
  author={Sayed Ali Akbar Ghorashi and Yunxiang Liao and Matthew S. Foster},
  journal={Physical review letters},
  volume={121 1},
We present numerical evidence that most two-dimensional surface states of a bulk topological superconductor (TSC) sit at an integer quantum Hall plateau transition. We study TSC surface states in class CI with quenched disorder. Low-energy (finite-energy) surface states were expected to be critically delocalized (Anderson localized). We confirm the low-energy picture, but find instead that finite-energy states are also delocalized, with universal statistics that are independent of the TSC… 

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