@inproceedings{qing-rui2021exactly,
title={Exactly solvable models for U(1) symmetry-enriched topological phases},
author={Qing-Rui Wang, and Meng Cheng},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220616165717848451398},
year={2021},
}