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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
ISSN0370-2693
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
DOI10.1016/j.physletb.2019.04.032
收录类别SCIE
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被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
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
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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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