Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-11-29
Can.J.Phys.86:587-590,2008
Astronomy and Astrophysics
Astrophysics
8 pages, talk presented at ``Theory CANADA 3'', Edmonton, June 13 - 16, 2007
Scientific paper
10.1139/P07-178
We review our recent work on the cosmological birefringence. We propose a new
type of effective interactions in terms of the $CPT$-even dimension-six
Chern-Simons-like term to generate the cosmological birefringence. We use the
neutrino number asymmetry to induce a non-zero rotation polarization angle in
the data of the cosmic microwave background radiation polarization.
Geng Chao-Qiang
Ho Shih-Hao
Ng John N.
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