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Yang, RJ; Yang, RJ (reprint author), Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China.
Effects of quantum fluctuations of metric on the universe
Source PublicationPHYSICS OF THE DARK UNIVERSE
Language英语
KeywordModified Gravity Inflation Dark Energy Cosmology
AbstractWe consider a model of modified gravity from the nonperturbative quantization of a metric. We obtain the modified gravitational field equations and the modified conservational equations. We apply it to the FLRW spacetime and find that due to the quantum fluctuations a bounce universe can be obtained and a decelerated expansion can also possibly be obtained in a dark energy dominated epoch. We also discuss the effects of quantum fluctuations on inflation parameters (such as slow-roll parameters, spectral index, and the spectrum of the primordial curvature perturbation) and find values of parameters in the comparing the predictions of inflation can also work to drive the current epoch of acceleration. We obtain the constraints on the parameter of the theory from the observation of the big bang nucleosynthesis. (C) 2016 Elsevier B.V. All rights reserved.
2016
Volume13Pages:87-91
Subject AreaAstronomy & Astrophysics
DOIhttp://dx.doi.org/10.1016/j.dark.2016.04.007
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11147028, 11273010] ; National Natural Science Foundation of China [11147028, 11273010] ; National Natural Science Foundation of China [11147028, 11273010] ; National Natural Science Foundation of China [11147028, 11273010] ; Hebei Provincial Natural Science Foundation of China [A2014201068] ; Hebei Provincial Natural Science Foundation of China [A2014201068] ; Hebei Provincial Natural Science Foundation of China [A2014201068] ; Hebei Provincial Natural Science Foundation of China [A2014201068] ; Outstanding Youth Fund of Hebei University [2012JQ02] ; Outstanding Youth Fund of Hebei University [2012JQ02] ; Outstanding Youth Fund of Hebei University [2012JQ02] ; Outstanding Youth Fund of Hebei University [2012JQ02] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF101CJ1] ; Midwest universities comprehensive strength promotion project ; Midwest universities comprehensive strength promotion project ; Midwest universities comprehensive strength promotion project ; Midwest universities comprehensive strength promotion project
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21550
Collection理论物理所科研产出_SCI论文
Corresponding AuthorYang, RJ (reprint author), Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China.
Recommended Citation
GB/T 7714
Yang, RJ,Yang, RJ . Effects of quantum fluctuations of metric on the universe[J]. PHYSICS OF THE DARK UNIVERSE,2016,13:87-91.
APA Yang, RJ,&Yang, RJ .(2016).Effects of quantum fluctuations of metric on the universe.PHYSICS OF THE DARK UNIVERSE,13,87-91.
MLA Yang, RJ,et al."Effects of quantum fluctuations of metric on the universe".PHYSICS OF THE DARK UNIVERSE 13(2016):87-91.
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