Chameleon dark energy can resolve the Hubble tension

doi:10.1103/PhysRevD.103.L121302

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	Chameleon dark energy can resolve the Hubble tension
	Cai, Rong-Gen ; Guo, Zong-Kuan ; Li Li 2; Wang, Shao-Jiang ; Yu, Wang-Wei
刊名	PHYSICAL REVIEW D
	2021
卷号	103 期号:12 页码:L121302
关键词	BARYON ACOUSTIC-OSCILLATIONS DECELERATION-ACCELERATION TRANSITION RED GIANT BRANCH COSMOLOGICAL PARAMETERS MEASUREMENT CONSTRAINTS CEPHEID STANDARDS COSMIC DISTANCES SOUND-HORIZON DATA RELEASES FINAL DATA
ISSN号	2470-0010
DOI	10.1103/PhysRevD.103.L121302
英文摘要	Values of the Hubble constant between the direct measurements from various independent local observations and that inferred from the cosmic microwave background with the Lambda-cold -dark-matter model are in tension with persistent significance. We propose a late-time inhomogeneous resolution suggesting that a chameleon field coupled to a local overdensity of matter could be trapped at a higher potential energy density as an effective cosmological constant driving the local expansion rate faster than that of the background with lower matter density. We illustrate this mechanism in a toy model in which a region with only 20% overdensity of matter is sufficient to resolve the Hubble tension, and the Hubble constant measured by the local distance ladders could be accommodated by the chameleon coupled to the observed overdensities from the large-scale structure surveys.
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/311006/27283]
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.[Cai, Rong-Gen 2.Guo, Zong-Kuan 3.Li Li 4.Wang, Shao-Jiang 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 Fundamental Phys & Math Sci, Hangzhou Inst Adv Study HIAS, Hangzhou 310024, Peoples R China 7.Univ Chinese Acad Sci UCAS, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cai, Rong-Gen,Guo, Zong-Kuan,Li Li,et al. Chameleon dark energy can resolve the Hubble tension[J]. PHYSICAL REVIEW D,2021,103(12):L121302.
APA	Cai, Rong-Gen,Guo, Zong-Kuan,Li Li,Wang, Shao-Jiang,&Yu, Wang-Wei.(2021).Chameleon dark energy can resolve the Hubble tension.PHYSICAL REVIEW D,103(12),L121302.
MLA	Cai, Rong-Gen,et al."Chameleon dark energy can resolve the Hubble tension".PHYSICAL REVIEW D 103.12(2021):L121302.