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Cai, Rong-Gen; Guo, Zong-Kuan; Li Li2; Wang, Shao-Jiang; Yu, Wang-Wei
Chameleon dark energy can resolve the Hubble tension
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordBARYON ACOUSTIC-OSCILLATIONS DECELERATION-ACCELERATION TRANSITION RED GIANT BRANCH COSMOLOGICAL PARAMETERS MEASUREMENT CONSTRAINTS CEPHEID STANDARDS COSMIC DISTANCES SOUND-HORIZON DATA RELEASES FINAL DATA
AbstractValues 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.
2021
ISSN2470-0010
Volume103Issue:12Pages:L121302
Cooperation Status国内
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.103.L121302
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27283
CollectionSCI期刊论文
Affiliation1.[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
Recommended Citation
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.
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