Toward early dark energy and ns=1 with Planck, ACT, and SPT observations

doi:10.1103/PhysRevD.105.103514

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	Toward early dark energy and ns=1 with Planck, ACT, and SPT observations
	Jiang, Jun-Qian ; Piao, Yun-Song
刊名	PHYSICAL REVIEW D
	2022
卷号	105 期号:10 页码:103514
关键词	SUPERGRAVITY INFLATION
ISSN号	2470-0010
DOI	10.1103/PhysRevD.105.103514
英文摘要	We investigate the constraints on early dark energy (EDE) by combining the most recent CMB dataset favors nonzero EDE fractions and large Hubble constants. The inclusion of BAO + Pantheon data has little effect on the results, leads to H0 = 71.6(72.9)+2.0???1.5 and 73.17(72.74)+0.55 EDE and AdS-EDE, respectively. The axionlike EDE can fit the data significantly better (????2 ??? ???10) than ACDM, which is mainly driven by the ACT data. It is found again that if the current H0 measured locally is correct, complete resolution of the Hubble tension seems to be pointing toward a scale invariant HarrisonZeldovich spectrum of primordial scalar perturbation, i.e., ns = 1 for H0 ??? 73 km/s/Mpc.
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/311006/27896]
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.Int Ctr Theoret Phys Asia Pacific, Beijing 100190, Peoples R China 2.[Jiang, Jun-Qian 3.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 4.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Jun-Qian,Piao, Yun-Song. Toward early dark energy and ns=1 with Planck, ACT, and SPT observations[J]. PHYSICAL REVIEW D,2022,105(10):103514.
APA	Jiang, Jun-Qian,&Piao, Yun-Song.(2022).Toward early dark energy and ns=1 with Planck, ACT, and SPT observations.PHYSICAL REVIEW D,105(10),103514.
MLA	Jiang, Jun-Qian,et al."Toward early dark energy and ns=1 with Planck, ACT, and SPT observations".PHYSICAL REVIEW D 105.10(2022):103514.