@article{LiuWangSatoetal.2019,
  author    = {Liu, Yuhai and Wang, Zhenjiu and Sato, Toshihiro and Hohenadler, Martin and Wang, Chong and Guo, Wenan and Assaad, Fakher F.},
  title     = {Superconductivity from the condensation of topological defects in a quantum spin-Hall insulator},
  series = {Nature Communications},
  volume    = {10},
  journal   = {Nature Communications},
  doi       = {10.1038/s41467-019-10372-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-237024},
  year      = {2019},
  abstract  = {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 superconducting state through proliferation of charge-2e topological defects. This route to superconductivity put forward by Grover and Senthil is an instance of a deconfined quantum critical point (DQCP). Our model offers the possibility to study DQCPs without a second length scale associated with the reduced symmetry between field theory and lattice realization and, by construction, is amenable to large-scale fermion quantum Monte Carlo simulations.},
  language  = {en}
}