Hydrodynamic backreaction force of cosmological bubble expansion

doi:10.1103/PhysRevD.107.023501

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Hydrodynamic backreaction force of cosmological bubble expansion
	Wang, Shao-Jiang ; Yuwen, Zi-Yan
刊名	PHYSICAL REVIEW D
	2023
卷号	107 期号:2 页码:23501
ISSN号	2470-0010
DOI	10.1103/PhysRevD.107.023501
英文摘要	As a promising probe for the new physics beyond the standard model of particle physics in the early Universe, the predictions for the stochastic gravitational wave background from a cosmological first-order phase transition heavily rely on the bubble wall velocity determined by the bubble expansion dynamics. The bubble expansion dynamics is governed by the competition between the driving force from the effective potential difference and the backreaction force from a sum of the thermal force and friction force induced by the temperature jumping and out-of-equilibrium effects across the bubble wall, respectively. In this paper, we propose a hydrodynamic evaluation on this total backreaction force for a nonrunaway steady-state bubble expansion, which, after evaluated at the wall interface, exactly reproduces the pressure difference Delta wall[(gamma over bar 2 - 1)w] obtained previously from the junction condition of the total energy-momentum tensor at the wall interface, where w is the enthalpy and gamma over bar equivalent to (1 - v over bar 2)-1=2 is the Lorentz factor of the wall -frame fluid velocity v over bar .
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27999]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Wang, Shao-Jiang 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci UCAS, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shao-Jiang,Yuwen, Zi-Yan. Hydrodynamic backreaction force of cosmological bubble expansion[J]. PHYSICAL REVIEW D,2023,107(2):23501.
APA	Wang, Shao-Jiang,&Yuwen, Zi-Yan.(2023).Hydrodynamic backreaction force of cosmological bubble expansion.PHYSICAL REVIEW D,107(2),23501.
MLA	Wang, Shao-Jiang,et al."Hydrodynamic backreaction force of cosmological bubble expansion".PHYSICAL REVIEW D 107.2(2023):23501.