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
Friction on ALP domain walls and gravitational waves
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/04/008
Abstract: We study the early Universe evolution of axion-like particle (ALP) domain walls taking into account the effect of friction from particles in the surrounding plasma, including the case of particles in thermal equilibrium and frozen… read more here.
Keywords: alp domain; gravitational wave; friction alp; domain walls ... See more keywords