de Sitter Swampland, H-0 tension & observation
文献类型：期刊论文
| 作者 | Colgain, EO; van Putten, MHPM; Yavartanoo, H1 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2019 |
| 卷号 | 793页码:126-129 |
| 关键词 | BARYON ACOUSTIC-OSCILLATIONS GALAXIES ENERGY LIGHT |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2019.04.032 |
| 英文摘要 | Realising de Sitter vacua in string theory is challenging. For this reason it has been conjectured that de Sitter vacua inhabit the Swampland of inconsistent low-energy effective theories coupled to gravity. Since de Sitter is an attractor for Lambda CDM, the conjecture calls Lambda CDM into question. Reality appears sympathetic to this idea as local measurements of the Hubble constant H-0 are also at odds with Lambda CDM analysis of Planck data. This tension suggests that the de Sitter state is unstable, thereby implying a turning point in the Hubble parameter. We present a model relieving this tension, which predicts a turning at small positive redshift z(*) that is dictated by present-day matter density omega(m). This feature is easily identified by homogeneous surveys covering redshifts z <= 0.1. We comment on the implications for the Swampland program. (C) 2019 The Authors. Published by Elsevier B.V. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23408]  |
| 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.van Putten, Maurice H. P. M.] Sejong Univ, Phys & Astron, Seoul, South Korea 2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.[Colgain, Eoin O.] Postech, Asia Pacific Ctr Theoret Phys, Pohang 37673, South Korea |
| 推荐引用方式 GB/T 7714 | Colgain, EO,van Putten, MHPM,Yavartanoo, H. de Sitter Swampland, H-0 tension & observation[J]. PHYSICS LETTERS B,2019,793:126-129. |
| APA | Colgain, EO,van Putten, MHPM,&Yavartanoo, H.(2019).de Sitter Swampland, H-0 tension & observation.PHYSICS LETTERS B,793,126-129. |
| MLA | Colgain, EO,et al."de Sitter Swampland, H-0 tension & observation".PHYSICS LETTERS B 793(2019):126-129. |
入库方式： OAI收割
来源：理论物理研究所
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