Lorentz-Violating Electrodynamics and the Cosmic Microwave Background
Abstract
Possible Lorentz-violating effects in the cosmic microwave background are studied. We provide a systematic classification of renormalizable and nonrenormalizable operators for Lorentz violation in electrodynamics and use polarimetric observations to search for the associated violations.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 2007
- DOI:
- arXiv:
- arXiv:astro-ph/0702379
- Bibcode:
- 2007PhRvL..99a1601K
- Keywords:
-
- 11.30.Cp;
- 12.20.-m;
- 98.70.Vc;
- Lorentz and Poincare invariance;
- Quantum electrodynamics;
- Background radiations;
- Astrophysics;
- High Energy Physics - Phenomenology
- E-Print:
- 4 pages two-column REVTeX, accepted in Physical Review Letters