Cosmological Constraints on Lorentz Violation in Electrodynamics
Abstract
Infrared, optical, and ultraviolet spectropolarimetry of cosmological sources is used to constrain the pure electromagnetic sector of a general Lorentz-violating standard-model extension. The coefficients for Lorentz violation are bounded to less than 3×10-32.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 2001
- DOI:
- 10.1103/PhysRevLett.87.251304
- arXiv:
- arXiv:hep-ph/0111026
- Bibcode:
- 2001PhRvL..87y1304K
- Keywords:
-
- High Energy Physics - Phenomenology;
- Astrophysics;
- High Energy Physics - Theory
- E-Print:
- 4 pages, accepted for publication in Physical Review Letters