Knowledge Management System of Institute of Theoretical Physics, CAS
Colgain, EO; van Putten, MHPM; Yavartanoo, H2 | |
de Sitter Swampland, H-0 tension & observation | |
发表期刊 | PHYSICS LETTERS B |
语种 | 英语 |
关键词 | BARYON ACOUSTIC-OSCILLATIONS GALAXIES ENERGY LIGHT |
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. |
2019 | |
ISSN | 0370-2693 |
卷号 | 793页码:126-129 |
学科领域 | Astronomy & Astrophysics ; Physics |
学科门类 | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
DOI | 10.1016/j.physletb.2019.04.032 |
收录类别 | SCIE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/23408 |
专题 | SCI期刊论文 |
作者单位 | 1.[Colgain, Eoin O.] Postech, Asia Pacific Ctr Theoret Phys, Pohang 37673, South Korea 2.van Putten, Maurice H. P. M.] Sejong Univ, Phys & Astron, Seoul, South Korea 3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China |
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. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
de Sitter Swampland,(315KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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