Gravitational waves from resonant amplification of curvature perturbations during inflation
文献类型：期刊论文
| 作者 | Peng, Zhi-Zhang; Fu, Chengjie; Liu, Jing; Guo, Zong-Kuan ; Cai, Rong-Gen
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2021 |
| 期号 | 10页码:50 |
| 关键词 | PRIMORDIAL BLACK-HOLES |
| ISSN号 | 1475-7516 |
| DOI | 10.1088/1475-7516/2021/10/050 |
| 英文摘要 | Parametric resonance in a single-field inflationary model with a periodic structure on the potential gives rise to curvature perturbations with large amplitudes on small scales, which could result in observable primordial black holes (PBHs) and concomitant gravitational waves (GWs) induced by curvature perturbations in the radiation-dominated era. In such a model, GWs associated with the PBH formation were investigated in ref. [1]. In this paper, we consider a stochastic GW background sourced by inflaton perturbations resonantly amplified during inflation. We compute the energy spectra of induced GWs produced both during inflation and in the radiation-dominated era, and find that the peak of the energy spectrum of the former is much higher than that of the latter, but is located at a lower frequency. Moreover, the energy spectrum of induced GWs produced during inflation exhibits a unique oscillating character in the ultraviolet region. Both the stochastic GW backgrounds are expected to be detected by future space-based laser interferometers. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27621]  |
| 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.Fu, Chengjie 2.Liu, Jing 3.[Peng, Zhi-Zhang 4.Guo, Zong-Kuan 5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 7.[Liu, Jing 8.Univ Chinese Acad Sci, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Zhi-Zhang,Fu, Chengjie,Liu, Jing,et al. Gravitational waves from resonant amplification of curvature perturbations during inflation[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2021(10):50. |
| APA | Peng, Zhi-Zhang,Fu, Chengjie,Liu, Jing,Guo, Zong-Kuan,&Cai, Rong-Gen.(2021).Gravitational waves from resonant amplification of curvature perturbations during inflation.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(10),50. |
| MLA | Peng, Zhi-Zhang,et al."Gravitational waves from resonant amplification of curvature perturbations during inflation".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .10(2021):50. |
入库方式： OAI收割
来源：理论物理研究所
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