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

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Title
Gravitational waves from first-order phase transitions: ultra-supercooled transitions and the fate of relativistic shocks
Author(s)
Ryusuke Jinno; Hyeonseok Seong; Masahiro Takimoto; Choong Min Um
Publication Date
2019-10
Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, v.2019, no.10, pp.033 -
Publisher
IOP PUBLISHING LTD
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, alpha greater than or similar to 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. c 2019 IOP Publishing Ltd and Sissa Medialab
URI
https://pr.ibs.re.kr/handle/8788114/6864
ISSN
1475-7516
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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