Abstract
Duality transformations, i.e., rotations of electric and magnetic fields into each other, are implementable by a time-local generator for source-free Maxwell theory in an arbitrary spacetime metric. The Maxwell action as well as the stress tensor components, e.g., , are duality invariant and the generator is conserved. In the formally analogous Yang-Mills case, duality transformations cannot even be consistently implemented.
- Received 10 December 1975
DOI:https://doi.org/10.1103/PhysRevD.13.1592
©1976 American Physical Society