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Hu, YZ; Li, M; Li, N; Zhang, ZH; Zhang, ZH (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Holographic dark energy with cosmological constant
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordDark Energy Theory Dark Energy Experiments
AbstractInspired by the multiverse scenario, we study a heterotic dark energy model in which there are two parts, the first being the cosmological constant and the second being the holographic dark energy, thus this model is named the AHDE model. By studying the AHDE model theoretically, we find that the parameters d and Omega(hde) are divided into a few domains in which the fate of the universe is quite different. We investigate dynamical behaviors of this model, and especially the future evolution of the universe. We perform fitting analysis on the cosmological parameters in the AHDE model by using the recent observational data. We find the model yields chi(2)(min) = 426.27 when constrained by Planck + SNLS3 + BAO + HST, comparable to the results of the HDE model (428.20) and the concordant ACDM model (431.35). At 68.3% CL, we obtain -0.07 < Omega(A0) < 0.68 and correspondingly 0.04 < Omega(hde0) < 0.79, implying at present there is considerable degeneracy between the holographic dark energy and cosmological constant components in the AHDE model.
2015
Issue8Pages:12
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1088/1475-7516/2015/08/012
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; National Natural Science Foundation of China [11275247, 11335012] ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20905
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhang, ZH (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Hu, YZ,Li, M,Li, N,et al. Holographic dark energy with cosmological constant[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2015(8):12.
APA Hu, YZ,Li, M,Li, N,Zhang, ZH,&Zhang, ZH .(2015).Holographic dark energy with cosmological constant.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),12.
MLA Hu, YZ,et al."Holographic dark energy with cosmological constant".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2015):12.
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