科研之友
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摘要
We prove an explicit formula conjectured recently by Wang and Levin for the anomaly of time-reversal symmetry in (2 + 1)-dimensional fermionic topological quantum field theories. The crucial step is to determine the cross-cap state in terms of the modular S matrix and T-2 eigenvalues, generalizing the recent analysis by Barkeshli et al. in the bosonic case.
- 出版日期2017-9-13
