Knowledge Management System of Institute of Theoretical Physics, CAS
Cai, Rong-Gen ; Guo, Zong-Kuan; Li Li2; Wang, Shao-Jiang; Yu, Wang-Wei
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| Chameleon dark energy can resolve the Hubble tension | |
| Source Publication | PHYSICAL REVIEW D
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| Language | 英语 |
| Keyword | BARYON ACOUSTIC-OSCILLATIONS DECELERATION-ACCELERATION TRANSITION RED GIANT BRANCH COSMOLOGICAL PARAMETERS MEASUREMENT CONSTRAINTS CEPHEID STANDARDS COSMIC DISTANCES SOUND-HORIZON DATA RELEASES FINAL DATA |
| Abstract | 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. |
| 2021 | |
| ISSN | 2470-0010 |
| Volume | 103Issue:12Pages:L121302 |
| Cooperation Status | 国内 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Particles & Fields |
| DOI | 10.1103/PhysRevD.103.L121302 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27283 |
| Collection | SCI期刊论文 |
| Affiliation | 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 |
| 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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