Emergent dark universe and the swampland criteria
文献类型：期刊论文
| 作者 | Cai, Rong-Gen ; Khimphun, Sunly8; Lee, Bum-Hoon; Sun, Sichun1,2; Tumurtushaa, Gansukh3; Zhang, Yun-Long
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| 刊名 | PHYSICS OF THE DARK UNIVERSE
 |
| 出版日期 | 2019 |
| 卷号 | 26页码:UNSP 100387 |
| 关键词 | STANDARD COSMOLOGY BRANE GRAVITY |
| ISSN号 | 2212-6864 |
| DOI | 10.1016/j.dark.2019.100387 |
| 英文摘要 | We study a model of the emergent dark universe, which lives on the time-like hypersurface in a five-dimensional bulk spacetime. The holographic fluid on the hypersurface is assumed to play the role of the dark sector, mainly including the dark energy and apparent dark matter. Based on the modified Friedmann equations, we present a Markov-Chain-Monte-Carlo analysis with the observational data, including type Ia Supernova and the direct measurement of the Hubble constant. We obtain a good fitting result and the matter component turns out to be small enough, which matches well with our theoretical assumption that only the normal matter is required. After considering the fitting parameters, an effective potential of the model with a dynamical scalar field is reconstructed. The parameters in the swampland criteria are extracted, and they satisfy the criteria at the present epoch but are in tension with the criteria if the potential is extended to the future direction. The method to reconstruct the potential is helpful to study the swampland criteria of other models without an explicit scalar field. (c) 2019 Elsevier B.V. All rights reserved. |
| 学科主题 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/26972]  |
| 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.Sogang Univ, Ctr Quantum Spacetime CQUeST, Seoul 121742, South Korea 2.Sapienza Univ Rome, Dept Phys, I-00185 Rome, Italy 3.Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan 4.Inst for Basic Sci Korea, CTPU, Daejeon 34051, South Korea 5.Asia Pacific Ctr Theoret Phys, APCTP Headquarters, Pohang 790784, South Korea 6.Kyoto Univ, YITP, Ctr Gravitat Phys, Kyoto 6068502, Japan 7.Royal Univ Phnom Penh, Dept Phys, Phnom Penh, Cambodia 8.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 9.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Rong-Gen,Khimphun, Sunly,Lee, Bum-Hoon,et al. Emergent dark universe and the swampland criteria[J]. PHYSICS OF THE DARK UNIVERSE,2019,26:UNSP 100387. |
| APA | Cai, Rong-Gen,Khimphun, Sunly,Lee, Bum-Hoon,Sun, Sichun,Tumurtushaa, Gansukh,&Zhang, Yun-Long.(2019).Emergent dark universe and the swampland criteria.PHYSICS OF THE DARK UNIVERSE,26,UNSP 100387. |
| MLA | Cai, Rong-Gen,et al."Emergent dark universe and the swampland criteria".PHYSICS OF THE DARK UNIVERSE 26(2019):UNSP 100387. |
入库方式： OAI收割
来源：理论物理研究所
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