论文标题
2-D Fermionic SPT与CRT对称性
2-d Fermionic SPT with CRT symmetry
论文作者
论文摘要
在[O]中得出了用于二维费米昂系统的现场有限组$ g $对称性的SPT责任的不变。与可逆量子场理论中的猜想相比，这种不变的次数加倍。我们表明，如果我们还需要CRT对称性（在量子场理论中自动保存），那么我们的不变式就会减少到猜想。
An invariant of SPT-phases with on-site finite group $G$ symmetry for two-dimensional Fermion systems was derived in [O]. This invariant is doubled compared to the conjectured one from the invertible quantum field theory. We show that if we require CRT-symmetry (which holds automatically in quantum field theory) in addition, then our invariant reduces to the conjectured one.
