Note on discrete gauge anomalies
Abstract
We consider the problem of gauging discrete symmetries. All valid constraints on such symmetries can be understood in the low-energy theory in terms of instantons. We note that string perturbation theory often exhibits global discrete symmetries, which are broken nonperturbatively.
- Publication:
-
Physical Review D
- Pub Date:
- February 1992
- DOI:
- 10.1103/PhysRevD.45.1424
- arXiv:
- arXiv:hep-th/9109045
- Bibcode:
- 1992PhRvD..45.1424B
- Keywords:
-
- 03.70.+k;
- 11.15.-q;
- Theory of quantized fields;
- Gauge field theories;
- High Energy Physics - Theory
- E-Print:
- 9 pages