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

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Cited by in corpus (5)

• Cosmological CPT violating effect on CMB polarization
• Large-scale magnetic fields from inflation due to Chern-Simons-like effective interaction
• New Constraints on Anisotropic Rotation of CMB Polarization
• Large-scale magnetic fields from inflation due to a $CPT$-even Chern-Simons-like term with Kalb-Ramond and scalar fields
• Testing the Lorentz and CPT Symmetry with CMB polarizations and a non-relativistic Maxwell Theory