Kilobyte Cosmic Birefringence from ALP domain walls
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DOI: 10.1088/1475-7516/2021/04/007
Abstract: ALP domain walls without strings may be formed in the early Universe. We point out that such ALP domain walls lead to both isotropic and anisotropic birefringence of cosmic microwave background (CMB) polarization, which reflects… read more here.
Keywords: cosmic birefringence; alp domain; domain; domain walls ... See more keywords
Probing axions through tomography of anisotropic cosmic birefringence
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/05/026
Abstract: Cosmic birefringence is the in-vacuo rotation of the linear polarization plane experienced by photons of the Cosmic Microwave Background (CMB) radiation when theoretically well-motivated parity-violating extensions of Maxwell electromagnetism are considered. If the angle parametrizing… read more here.
Keywords: axions tomography; anisotropic cosmic; probing axions; birefringence ... See more keywords