Knowledge Management System of Institute of Theoretical Physics, CAS
Cai, RG ; Wang, SJ; Wang, SJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
| |
| Dark matter superfluid and DBI dark energy | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Abstract | It was shown recently that, without jeopardizing the success of the. cold dark matter model on cosmic scales, the modified Newtonian dynamics (MOND) can be derived as an emergent phenomenon when axionlike dark matter particles condense into superfluid on the galactic scales. We propose in this paper a Dirac-Born-Infeld (DBI) scalar field conformally coupled to the matter components. To maintain the success of MOND phenomenon of dark matter superfluid on the galactic scales, the fifth force introduced by the DBI scalar should be screened on the galactic scales. It turns out that the screening effect naturally leads to a simple explanation for a longstanding puzzle that the MOND critical acceleration coincides with present Hubble scale. This galactic coincidence problem is solved, provided that the screened DBI scalar also plays the role of dark energy on the cosmic scales. |
| 2016 | |
| Volume | 93Issue:2Pages:23515 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevD.93.023515 |
| Indexed By | SCI |
| Funding Organization | Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21796 |
| Collection | SCI期刊论文 |
| Corresponding Author | Cai, RG; Wang, SJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Cai, RG,Wang, SJ,Wang, SJ . Dark matter superfluid and DBI dark energy[J]. PHYSICAL REVIEW D,2016,93(2):23515. |
| APA | Cai, RG,Wang, SJ,&Wang, SJ .(2016).Dark matter superfluid and DBI dark energy.PHYSICAL REVIEW D,93(2),23515. |
| MLA | Cai, RG,et al."Dark matter superfluid and DBI dark energy".PHYSICAL REVIEW D 93.2(2016):23515. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Dark matter superflu（410KB） | 开放获取 | -- | Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment