Gravitational waves from first-order phase transitions: ultra-supercooled transitions and the fate of relativistic shocks

Jinno, Ryusuke; Seong, Hyeonseok; Takimoto, Masahiro; Um, Choong Min

doi:10.1088/1475-7516/2019/10/033

Report/Journal Article

PUBDB-2019-03752

Gravitational waves from first-order phase transitions: ultra-supercooled transitions and the fate of relativistic shocks

Jinno, R. (Corresponding author)DESY* ; Seong, H. (Corresponding author) ; Takimoto, M. (Corresponding author) ; Um, C. M. (Corresponding author)

2019
IOP London

Journal of cosmology and astroparticle physics 2019(10), 033 - 033 (2019) [10.1088/1475-7516/2019/10/033]

This record in other databases:

Please use a persistent id in citations: doi:10.1088/1475-7516/2019/10/033 doi:10.3204/PUBDB-2019-03752

Report No.: CTPU-PTC-19-12; DESY-19-067; KEK-TH-2125; arXiv:1905.00899

Abstract: We study the gravitational wave (GW) production in extremely strong first order phase transitions where the vacuum energy density dominates the plasma energy density, α gsim 1. In such transitions, bubbles develop extremely thin and relativistic fluid configurations, resulting in strong shock waves after collisions. We first propose a strategy to understand the GW production in such a system by separating the problem into the propagation part and the collision part. Focusing on the former, we next develop an effective theory for the propagation of the relativistic fluid shells. Using this effective theory, we finally calculate the expected duration of the relativistic fluid configurations and discuss its implications to the GW production.

Classification: