Strong primordial inhomogeneities induced by axion-like scalar field

Abstract

Our goal is to consider Axion-like particle (ALP) model to investigate the behaviour of space-time in the vicinity of the domain wall, induced by axion-like field. Here we present first-step approximation in our analysis and discuss the applicability of thin-shell approximation.

Comments: Prepared for the proceedings of the 27th International Bled workshop on "What comes beyond the standard models", held from 8th July 2024 to 17th July 2024 11 pages with 2 figures. arXiv admin note: substantial text overlap with arXiv:2410.09571