Intrinsically interacting topological crystalline insulators and superconductors

Alex Rasmussen; Yuan-Ming Lu

Intrinsically interacting topological crystalline insulators and superconductors

Strongly Correlated Electrons 2018-10-31 v1

Authors: Alex Rasmussen , Yuan-Ming Lu

Abstract

Motivated by recent progress in crystalline symmetry protected topological (SPT) phases of interacting bosons, we study topological crystalline insulators/superconductors (TCIs) of strongly interacting fermions. We construct a class of intrinsically interacting fermionic TCIs, and show that they are beyond both free-fermion TCIs and bosonic crystalline SPT phases. We also show how these phases can be characterized by symmetry protected gapless fermion modes on the corners/hinges of an open system.

Keywords

topological crystalline insulators strongly interacting fermions intrinsically interacting phases symmetry protected topological phases gapless corner modes

Cite

@article{arxiv.1810.12317,
  title  = {Intrinsically interacting topological crystalline insulators and superconductors},
  author = {Alex Rasmussen and Yuan-Ming Lu},
  journal= {arXiv preprint arXiv:1810.12317},
  year   = {2018}
}

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