Scalar Induced Gravitational Waves Review

被引：342

作者：

Domenech, Guillem ^{[1
]}

机构：

[1] INFN, Sez Padova, I-35131 Padua, Italy

来源：

UNIVERSE | 2021年 / 7卷 / 11期

基金：

欧盟地平线“2020”;

关键词：

induced gravitational waves; primordial black holes; early universe; inflation; BLACK-HOLE FORMATION; DENSITY PERTURBATIONS; INFLATIONARY UNIVERSE; HIGH-FREQUENCY; CONSTRAINTS; RADIATION; FLUCTUATIONS; INSTABILITY; EXPANSION; ABUNDANCE;

D O I：

10.3390/universe7110398

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We provide a review on the state-of-the-art of gravitational waves induced by primordial fluctuations, so-called induced gravitational waves. We present the intuitive physics behind induced gravitational waves and we revisit and unify the general analytical formulation. We then present general formulas in a compact form, ready to be applied. This review places emphasis on the open possibility that the primordial universe experienced a different expansion history than the often assumed radiation dominated cosmology. We hope that anyone interested in the topic will become aware of current advances in the cosmology of induced gravitational waves, as well as becoming familiar with the calculations behind.

引用

页数：80

共 345 条

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