PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Astroparticle Physics and Cosmology
Redshift dependent cosmic birefringence from axion-like dark matter
M. Galaverni
Full text: pdf
Pre-published on: November 21, 2022
Published on: June 15, 2023
We highlight the importance of taking into account the redshift evolution of cosmic birefringence (rotation of linear polarization angle) in order to evaluate CMB polarization power spectra. Focusing particularly on isotropic birefringence from axion-like dark matter we discuss the limits on axion-photon coupling constant.
DOI: https://doi.org/10.22323/1.414.0126
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