CPT conserving cosmological birefringence
Astrophysics
2009-06-23 v1
Abstract
We demonstrate that the cosmological birefringence can arise from CPT conserving effect, originated from the CPT-even dimension-six Chern-Simons-like term. We show that a sizable rotation polarization angle in the data of the cosmic microwave background radiation polarization can be induced.
Cite
@article{arxiv.0801.0024,
title = {CPT conserving cosmological birefringence},
author = {C. Q. Geng and S. H. Ho and J. N. Ng},
journal= {arXiv preprint arXiv:0801.0024},
year = {2009}
}
Comments
4 pages, Talk given at 4th International Conference on Flavor Physics (ICFP 2007), Beijing, China, 24-28 Sep 2007