Generalized symmetries and Noether’s theorem in $$\mathrm{QFT}$$
Journal Article
·
· Journal of High Energy Physics (Online)
- Instituto Balseiro, Centro Atómico Bariloche (Argentina); Univ. of Pennsylvania, Philadelphia, PA (United States)
- Instituto Balseiro, Centro Atómico Bariloche (Argentina)
- University of Pennsylvania, Philadelphia, PA (United States); Vrije Universiteit Brussel (VUB), Brussels (Belgium)
We show that generalized symmetries cannot be charged under a continuous global symmetry having a Noether current. Further, only non-compact generalized symmetries can be charged under a continuous global symmetry. These results follow from a finer classification of twist operators, which naturally extends to finite group global symmetries. They unravel topological obstructions to the strong version of Noether’s theorem in QFT, even if under general conditions a global symmetry can be implemented locally by twist operators (weak version). We use these results to rederive Weinberg-Witten’s theorem within local QFT, generalizing it to massless particles in arbitrary dimensions and representations of the Lorentz group. Several examples with local twists but without Noether currents are described. We end up discussing the conditions for the strong version to hold, dynamical aspects of QFT’s with non-compact generalized symmetries, scale vs conformal invariance in QFT, connections with the Coleman-Mandula theorem and aspects of global symmetries in quantum gravity.
- Research Organization:
- University of Pennsylvania, Philadelphia, PA (United States)
- Sponsoring Organization:
- CONICET; Simons Foundation; USDOE Office of Science (SC); Universidad Nacional de Cuyo
- Grant/Contract Number:
- SC0020360
- OSTI ID:
- 1976527
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 8 Vol. 2022; ISSN 1029-8479
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Equivalent conserved currents and generalized Noether's theorem
Masslessness of the photon and Goldstone theorem
Reflections on Noether’s second theorem and the energy-momentum tensor
Journal Article
·
Fri Jun 01 00:00:00 EDT 1984
· Ann. Phys. (N.Y.); (United States)
·
OSTI ID:6658723
Masslessness of the photon and Goldstone theorem
Journal Article
·
Tue Aug 20 00:00:00 EDT 1991
· International Journal of Modern Physics A; (United States)
·
OSTI ID:5548206
Reflections on Noether’s second theorem and the energy-momentum tensor
Journal Article
·
Thu Jan 08 19:00:00 EST 2026
· Physical Review. D.
·
OSTI ID:3012598