Gravitational waves induced by the local-type non-Gaussian curvature perturbations

doi:10.1016/j.physletb.2021.136606

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	Gravitational waves induced by the local-type non-Gaussian curvature perturbations
	Yuan, Chen ; Huang, Qing-Guo
刊名	PHYSICS LETTERS B
	2021
卷号	821 页码:136606
关键词	BLACK-HOLES CONSTRAINTS
ISSN号	0370-2693
DOI	10.1016/j.physletb.2021.136606
英文摘要	The current observational constraints still leave a substantial mass window similar to[10(-16), 10(-14)] boolean OR [10(-13), 10(12)]M-circle dot for primordial black holes (PBHs) representing all of dark matter (DM) in our Universe. The gravitational waves (GWs) induced by the curvature perturbations are inevitably generated during the formation of these PBHs, and fall in the frequency band of LISA. Such scalar induced gravitational waves (SIGWs) are supposed to be definitely detected by LISA even when the second-order local-type non-Gaussianity characterized by the parameter F-NL is taken into account. In this letter, we give a comprehensive analysis of the GWs induced by the local-type non-Gaussian curvature perturbations up to the third-order denoted by the non-linear parameter G(NL), and we find that a log-dependent slope of SIGWs in the infrared region is generically predicted and the amplitude of SIGWs can be further suppressed by several orders of magnitude. As a result, the null-detection of SIGWs by LISA cannot rule out the possibility of PBHs making up all of DM. (C) 2021 The Author(s). Published by Elsevier B.V.
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/311006/27623]
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.[Yuan, Chen 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.UCAS, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China 5.Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou 225009, Jiangsu, Peoples R China 6.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Chen,Huang, Qing-Guo. Gravitational waves induced by the local-type non-Gaussian curvature perturbations[J]. PHYSICS LETTERS B,2021,821:136606.
APA	Yuan, Chen,&Huang, Qing-Guo.(2021).Gravitational waves induced by the local-type non-Gaussian curvature perturbations.PHYSICS LETTERS B,821,136606.
MLA	Yuan, Chen,et al."Gravitational waves induced by the local-type non-Gaussian curvature perturbations".PHYSICS LETTERS B 821(2021):136606.