Thermalization effects on the dynamics of growing vacuum bubbles
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2025)178
Abstract: We study the evolution of growing vacuum bubbles. The bubble walls interact with the surrounding fluid and may, consequently, reach a terminal velocity. If the mean free path of the particles in the fluid is… read more here.
Keywords: growing vacuum; equilibrium; velocity; bubble walls ... See more keywords
Axion interactions with domain and bubble walls
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2025)189
Abstract: We show that interactions between axion-like particles (ALPs) and co-dimension one defects, such as phase-transition bubble walls and solitonic domain walls, can lead to important changes in the evolution of both walls and ALPs. The… read more here.
Keywords: interactions domain; axion; axion interactions; bubble walls ... See more keywords
Particle shells from relativistic bubble walls
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2024)231
Abstract: Relativistic bubble walls from cosmological phase transitions (PT) necessarily accumulate expanding shells of particles. We systematically characterize shell properties, and identify and calculate the processes that prevent them from free streaming: phase-space saturation effects, out-of-equilibrium… read more here.
Keywords: shell; relativistic bubble; shells relativistic; particle shells ... See more keywords
Baryogenesis via relativistic bubble walls
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2021)043
Abstract: Abstract We present a novel mechanism which leads to the baryon asymmetry generation during the strong first order phase transition. If the bubble wall propagates with ultra-relativistic velocity, it has been shown [1] that it… read more here.
Keywords: bubble walls; baryogenesis; baryogenesis via; mechanism ... See more keywords
Thin and thick bubble walls II: expansion in the wall width
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/04/003
Abstract: We study the dynamics of a cosmological bubble wall beyond the approximation of an infinitely thin wall. In a previous paper, we discussed the range of validity of this approximation and estimated the first-order corrections… read more here.
Keywords: wall width; thick bubble; thin thick; bubble walls ... See more keywords
Thin and thick bubble walls. Part III. Wall energy
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/05/076
Abstract: We study the energy-momentum tensor of a bubble wall beyond the approximation of an infinitely thin wall. To this end, we discuss the proper decomposition into wall and bulk contributions, and we use a systematic… read more here.
Keywords: energy; thick bubble; thin thick; bubble walls ... See more keywords