ITP OpenIR  > 理论物理所科研产出  > SCI论文
Narain, G; Li, TJ
Ultraviolet complete dark energy model
发表期刊PHYSICAL REVIEW D
语种英语
关键词DERIVATIVE QUANTUM-GRAVITY GAUSS-BONNET-TERM COSMOLOGICAL CONSTANT EINSTEIN GRAVITY ASYMPTOTIC FREEDOM CURVED SPACETIME PHASE-TRANSITION WEYL GRAVITY K-INFLATION MATTER
摘要We consider a local phenomenological model to explain a nonlocal gravity scenario which has been proposed to address dark energy issues. This nonlocal gravity action has been seen to fit the data as well as Lambda-CDM and therefore demands a more fundamental local treatment. The induced gravity model coupled with higher-derivative gravity is exploited for this proposal, as this perturbatively renormalizable model has a well-defined ultraviolet (UV) description where ghosts are evaded. We consider a generalized version of this model where we consider two coupled scalar fields and their nonminimal coupling with gravity. In this simple model, one of the scalar field acquires a vacuum expectation value (VEV), thereby inducing a mass for one of the scalar fields and generating Newton's constant. The induced mass however is seen to be always above the running energy scale thereby leading to its decoupling. The residual theory after decoupling becomes a platform for driving the accelerated expansion under certain conditions. Integrating out the residual scalar generates a nonlocal gravity action. The leading term of which is the nonlocal gravity action used to fit the data of dark energy.
2018
ISSN2470-0010
卷号97期号:8页码:83523
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.97.083523
收录类别SCIE
引用统计
被引频次:4[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/311006/22914
专题理论物理所科研产出_SCI论文
作者单位1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuguan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Narain, G,Li, TJ. Ultraviolet complete dark energy model[J]. PHYSICAL REVIEW D,2018,97(8):83523.
APA Narain, G,&Li, TJ.(2018).Ultraviolet complete dark energy model.PHYSICAL REVIEW D,97(8),83523.
MLA Narain, G,et al."Ultraviolet complete dark energy model".PHYSICAL REVIEW D 97.8(2018):83523.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Narain, G]的文章
[Li, TJ]的文章
百度学术
百度学术中相似的文章
[Narain, G]的文章
[Li, TJ]的文章
必应学术
必应学术中相似的文章
[Narain, G]的文章
[Li, TJ]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。