ITP OpenIR  > SCI期刊论文
Narain, G; Li, TJ
Non-Locality and Late-Time Cosmic Acceleration from an Ultraviolet Complete Theory
Source PublicationUNIVERSE
Language英语
KeywordGRAVITY COSMOLOGY FREEDOM
AbstractA local phenomenological model that reduces to a non-local gravitational theory giving dark energy is proposed. The non-local gravity action is known to fit the data as well as -CDM thereby demanding a more fundamental local treatment. It is seen that the scale-invariant higher-derivative scalar-tensor theory of gravity, which is known to be ultraviolet perturbative renormalizable to all loops and where ghosts become innocuous, generates non-locality at low energies. The local action comprises of two real scalar fields coupled non-minimally with the higher-derivative gravity action. When one of the scalar acquiring the Vacuum Expectation Value (VEV) induces Einstein-Hilbert gravity, generates mass for fields, and gets decoupled from system, it leaves behind a residual theory which in turn leads to a non-local gravity generating dark energy effects.
2018
ISSN2218-1997
Volume4Issue:8Pages:82
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.3390/universe4080082
Indexed BySCIE
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23543
CollectionSCI期刊论文
Affiliation1.Beihang Univ, Dept Space Sci, Beijing 100191, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Narain, G,Li, TJ. Non-Locality and Late-Time Cosmic Acceleration from an Ultraviolet Complete Theory[J]. UNIVERSE,2018,4(8):82.
APA Narain, G,&Li, TJ.(2018).Non-Locality and Late-Time Cosmic Acceleration from an Ultraviolet Complete Theory.UNIVERSE,4(8),82.
MLA Narain, G,et al."Non-Locality and Late-Time Cosmic Acceleration from an Ultraviolet Complete Theory".UNIVERSE 4.8(2018):82.
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