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- Title
PROBLEMS WITH GAUGE INVARIANCE IN LORENTZ-VIOLATING QED.
- Authors
ALTSCHUL, B.
- Abstract
We consider the radiative generation of a Chern-Simons addition to the effective action for a Lorentz-violating modification of electrodynamics. The coefficient of the induced Chern-Simons term is manifestly finite, but also potentially indeterminate. However, several values have been suggested as having special significance. We discuss two such special values, and it turns out that neither of them can be made consistent with the gauge invariance properties of the theory.
- Subjects
GAUGE invariance; QUANTUM electrodynamics; LORENTZ spaces; GAUGE field theory; QUANTUM field theory; SYMMETRY (Physics)
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2005, Vol 20, Issue 6, p1244
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X05024134