Primordial black holes and secondary gravitational waves from string inspired general no-scale supergravity

doi:10.1103/PhysRevD.104.123544

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	Primordial black holes and secondary gravitational waves from string inspired general no-scale supergravity
	Wu, Lina ; Gong, Yungui 1; Li, Tianjun 2,3
刊名	PHYSICAL REVIEW D
	2021
卷号	104 期号:12 页码:123544
关键词	CONSTRAINTS INFLATION BREAKING
ISSN号	2470-0010
DOI	10.1103/PhysRevD.104.123544
英文摘要	The formation of primordial black hole (PBH) dark matter and the generation of scalar induced secondary gravitational waves (SIGWs) have been studied in the generic no-scale supergravity inflationary models. By adding an exponential term to the Kahler potential, the inflaton experiences a period of ultraslow-roll and the amplitude of primordial power spectrum at small scales is enhanced to O(10-2). The enhanced power spectra of primordial curvature perturbations can have both sharp and broad peaks. A wide mass range of PBHs can be produced in our model, and the frequencies of the accompanied SIGWs are ranged form nanohertz to kilohertz. We show four benchmark points where the generated PBH masses are around O(10-16 M circle dot), O(10-12 M circle dot), O(10-2 M circle dot) and O(102 M circle dot). The PBHs with masses around O(10-16 M circle dot) and O(10-12 M circle dot) can make up almost all the dark matter, and the accompanied SIGWs can be probed by the upcoming space-based gravitational wave observatory. Also, the SIGWs accompanied with the formation of stellar mass PBHs can be used to interpret the stochastic GW background in the nanohertz band, detected by the North American Nanohertz Observatory for Gravitational Waves, and can be tested by future interferometric gravitational wave observatory.
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/311006/27650]
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.Xian Technol Univ, Sch Sci, Xian 710021, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Lina,Gong, Yungui,Li, Tianjun. Primordial black holes and secondary gravitational waves from string inspired general no-scale supergravity[J]. PHYSICAL REVIEW D,2021,104(12):123544.
APA	Wu, Lina,Gong, Yungui,&Li, Tianjun.(2021).Primordial black holes and secondary gravitational waves from string inspired general no-scale supergravity.PHYSICAL REVIEW D,104(12),123544.
MLA	Wu, Lina,et al."Primordial black holes and secondary gravitational waves from string inspired general no-scale supergravity".PHYSICAL REVIEW D 104.12(2021):123544.