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Cai, RG; Pi, S1; Wang, SJ; Yang, XY
Resonant multiple peaks in the induced gravitational waves
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordBOUNCING COSMOLOGIES
AbstractWe 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
ISSN1475-7516
Issue5Pages:13
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1088/1475-7516/2019/05/013
Indexed BySCIE
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23442
CollectionSCI期刊论文
Affiliation1.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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