# Superconductivity from the condensation of topological defects in a quantum spin-Hall insulator

@article{Liu2019SuperconductivityFT, title={Superconductivity from the condensation of topological defects in a quantum spin-Hall insulator}, author={Yuhai Liu and Zhenjiu Wang and Toshihiro Sato and Martin Hohenadler and Chong Wang and Wenan Guo and Fakher F. Assaad}, journal={Nature Communications}, year={2019}, volume={10} }

The discovery of quantum spin-Hall (QSH) insulators has brought topology to the forefront of condensed matter physics. While a QSH state from spin-orbit coupling can be fully understood in terms of band theory, fascinating many-body effects are expected if it instead results from spontaneous symmetry breaking. Here, we introduce a model of interacting Dirac fermions where a QSH state is dynamically generated. Our tuning parameter further allows us to destabilize the QSH state in favour of a…

## 43 Citations

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