Hydrodynamic backreaction force of cosmological bubble expansion
文献类型：期刊论文
| 作者 | Wang, Shao-Jiang; Yuwen, Zi-Yan |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：理论物理研究所
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