From vacuum decay to gravitational waves
arXiv:2411.17477
Abstract
I present a recap of a fully analytical calculation of the Euclidean action for a self-interacting scalar field with a quartic potential, in the thin-wall approximation. I then apply this result to the coupled fluid-scalar field model, a phenomenologically relevant model for cosmological first order phase transitions, and compare results with numerical simulations from the literature.
Proceedings for 2nd Training School and General Meeting of the COST Action COSMIC WISPers (CA21106) (COSMICWISPers2024), 10-14 June 2024 and 3-6 September 2024, Ljubljana (Slovenia) and Istanbul (Turkey). Based on arXiv:2404.17632