Energy budget of cosmological first-order phase transition in FLRW background

被引：0

作者：

Rong-Gen Cai ^{[1
,2
]}

Shao-Jiang Wang ^{[1
,3
,2
]}

机构：

[1] Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences

[2] School of Physical Sciences, University of Chinese Academy of Sciences

[3] Department of Physics, Helsinki Institute of Physics, University of Helsinki

来源：

Science China(Physics,Mechanics & Astronomy) | 2018年 / 61卷 / 08期

基金：

中国国家自然科学基金;

关键词：

cosmological first-order phase transition; bubble expansion; hydrodynamics;

D O I：

暂无

中图分类号：

P159 [宇宙学];

学科分类号：

070401 ;

摘要：

We study the hydrodynamics of bubble expansion in cosmological first-order phase transition in the Friedmann-Lema??treRobertson-Walker(FLRW) background with probe limit. Different from previous studies for fast first-order phase transition in flat background, we find that, for slow first-order phase transition in FLRW background with a given peculiar velocity of the bubble wall, the efficiency factor of energy transfer into bulk motion of thermal fluid is significantly reduced, thus decreasing the previously-thought dominated contribution from sound wave to the stochastic gravitational-wave background.

引用

页码：37 / 57

页数：21

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