Alleviating both H0 and S8 tensions: Early dark energy lifts the CMB-lockdown on ultralight axion

doi:10.1016/j.physletb.2023.137770

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	Alleviating both H0 and S8 tensions: Early dark energy lifts the CMB-lockdown on ultralight axion
	Ye, Gen 1; Zhang, Jun 4; Piao, Yun-Song
刊名	PHYSICS LETTERS B
	2023
卷号	839 页码:137770
关键词	HUBBLE CONSTANT SAMPLE
ISSN号	0370-2693
DOI	10.1016/j.physletb.2023.137770
英文摘要	The existence of ultralight axion (ULA) with mass O(10(-26) eV) is not favored by the CMB observations in the standard Lambda CDM model. We show that the inclusion of early dark energy (EDE) will lift the CMB-lockdown on such ULA, and possibly other forms of dark matter beyond cold dark matter. By performing Monte Carlo Markov Chain analysis, it is found that, as opposed to Lambda CDM, the AdS-EDE cosmology (with an Anti-de Sitter phase around recombination) now allows the existence of axion with mass 10(-26) eV and predicts 6% of the matter in our Universe to be such ULA, which can also help alleviating the S-8 tension in EDE. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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/311006/27923]
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.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 2.Leiden Univ, Inst Lorentz Theoret Phys, NL-2333 CA Leiden, Netherlands 3.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 4.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 5.Imperial Coll, Blackett Lab, Theoret Phys, London SW7 2AZ, England 6.Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Ye, Gen,Zhang, Jun,Piao, Yun-Song. Alleviating both H0 and S8 tensions: Early dark energy lifts the CMB-lockdown on ultralight axion[J]. PHYSICS LETTERS B,2023,839:137770.
APA	Ye, Gen,Zhang, Jun,&Piao, Yun-Song.(2023).Alleviating both H0 and S8 tensions: Early dark energy lifts the CMB-lockdown on ultralight axion.PHYSICS LETTERS B,839,137770.
MLA	Ye, Gen,et al."Alleviating both H0 and S8 tensions: Early dark energy lifts the CMB-lockdown on ultralight axion".PHYSICS LETTERS B 839(2023):137770.