Resonant multiple peaks in the induced gravitational waves

doi:10.1088/1475-7516/2019/05/013

ITP OpenIR > SCI期刊论文

	Cai, RG; Pi, S1 ; Wang, SJ ; Yang, XY
	Resonant multiple peaks in the induced gravitational waves
Source Publication	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language	英语
Keyword	BOUNCING COSMOLOGIES
Abstract	We identify analytically a multiple-peak structure in the energy-density spectrum of induced gravitational waves (GWs) generated at second-order from primordial scalar perturbations also with multiple (n) peaks at small scales k(i). The energy-density spectrum of induced GWs exhibits at most C(n+1)(2)and at least n peaks at wave-vectors kij equivalent to (k(i) + k(*j)) / root 3 due to resonant ampli fi cation, and, under the narrow-width approximation, it contains an universal factor that can be interpreted as a result of momentum conservation. We also extend these discussions to the case of non-Gaussian perturbations.
	2019
ISSN	1475-7516
Issue	5 Pages:13
Subject Area	Astronomy & Astrophysics ; Physics
MOST Discipline Catalogue	Astronomy & Astrophysics ; Physics, Particles & Fields
DOI	10.1088/1475-7516/2019/05/013
Indexed By	SCIE
Citation statistics	Cited Times:20[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/23442
Collection	SCI期刊论文
Affiliation	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 2.Univ Tokyo, Inst Adv Study, Kavli Inst Phys & Math Universe WPI, Chiba, Chiba 2778583, Japan 3.Tufts Univ, Dept Phys & Astron, Tufts Inst Cosmol, 574 Boston Ave, Medford, MA 02155 USA 4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation GB/T 7714	Cai, RG,Pi, S,Wang, SJ,et al. Resonant multiple peaks in the induced gravitational waves[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2019(5):13.
APA	Cai, RG,Pi, S,Wang, SJ,&Yang, XY.(2019).Resonant multiple peaks in the induced gravitational waves.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(5),13.
MLA	Cai, RG,et al."Resonant multiple peaks in the induced gravitational waves".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .5(2019):13.

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