Self-interaction and gauge invariance
- Cite this article as:
- Deser, S. Gen Relat Gravit (1970) 1: 9. doi:10.1007/BF00759198
A simple unified closed form derivation of the non-linearities of the Einstein, Yang-Mills and spinless (e.g. chiral) meson systems is given. For the first two, the non-linearities are required by locality and consistency; in all cases, they are determined by the conserved currents associated with the initial (linear) gauge invariance of the first kind. Use of first-order formalism leads uniformly to a simple cubic self-interaction.