Cosmological birefringence induced by neutrino current

Abstract

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.

8 pages, talk presented at ``Theory CANADA 3'', Edmonton, June 13 - 16, 2007

References in corpus (1)

• Neutrino number asymmetry and cosmological birefringence

Cited by in corpus (1)

• Large-scale magnetic fields from inflation due to Chern-Simons-like effective interaction