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arXiv · 1008.0486

Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields

Shih-Hao Ho·W. F. Kao·Kazuharu Bamba·C. Q. Geng
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Abstract

We study the CPT-even dimension-six Chern-Simons-like term by including dynamical Kalb-Ramond and scalar fields to examine the cosmological birefringence. We show that the combined effect of neutrino current and Kalb-Ramond field could induce a sizable rotation polarization angle in the cosmic microwave background radiation polarization.

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Shih-Hao Ho, W. F. Kao, Kazuharu Bamba, C. Q. Geng. 2010-08-03. Cosmological birefringence due to CPT-even Chern-Simons-like term with Kalb-Ramond and scalar fields. https://arxiv.org/abs/1008.0486

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