Scalar Induced Gravitational Waves Review

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 formu...

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Autor principal:	Guillem Domenech
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	induced gravitational waves primordial black holes early universe inflation Elementary particle physics QC793-793.5
Acceso en línea:	https://doaj.org/article/1c92a6ad30a64dff9ff90f9545906485
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spelling	oai:doaj.org-article:1c92a6ad30a64dff9ff90f95459064852021-11-25T19:09:26ZScalar Induced Gravitational Waves Review10.3390/universe71103982218-1997https://doaj.org/article/1c92a6ad30a64dff9ff90f95459064852021-10-01T00:00:00Zhttps://www.mdpi.com/2218-1997/7/11/398https://doaj.org/toc/2218-1997We 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.Guillem DomenechMDPI AGarticleinduced gravitational wavesprimordial black holesearly universeinflationElementary particle physicsQC793-793.5ENUniverse, Vol 7, Iss 398, p 398 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	induced gravitational waves primordial black holes early universe inflation Elementary particle physics QC793-793.5
spellingShingle	induced gravitational waves primordial black holes early universe inflation Elementary particle physics QC793-793.5 Guillem Domenech Scalar Induced Gravitational Waves Review
description	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.
format	article
author	Guillem Domenech
author_facet	Guillem Domenech
author_sort	Guillem Domenech
title	Scalar Induced Gravitational Waves Review
title_short	Scalar Induced Gravitational Waves Review
title_full	Scalar Induced Gravitational Waves Review
title_fullStr	Scalar Induced Gravitational Waves Review
title_full_unstemmed	Scalar Induced Gravitational Waves Review
title_sort	scalar induced gravitational waves review
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1c92a6ad30a64dff9ff90f9545906485
work_keys_str_mv	AT guillemdomenech scalarinducedgravitationalwavesreview
_version_	1718410201242009600

Scalar Induced Gravitational Waves Review

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