@inproceedings{juven2018symmetric,
title={Symmetric Gapped Interfaces of SPT and SET States: Systematic Constructions},
author={Juven Wang, Xiao-Gang Wen, and Edward Witten},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20171101024434343857847},
booktitle={Phys. Rev. X 8, 031048 (2018)},
volume={8},
number={031048},
year={2018},
}

Juven Wang, Xiao-Gang Wen, and Edward Witten. Symmetric Gapped Interfaces of SPT and SET States: Systematic Constructions. 2018. Vol. 8. In Phys. Rev. X 8, 031048 (2018). http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20171101024434343857847.