Observational constraints on the cosmology with holographic dark fluid

Huang, Da; Lee, Bum-Hoon; Tumurtushaa, Gansukh; Yin, Lu; Zhang, Yun-Long

doi:10.1016/j.dark.2021.100842

Physics of the Dark Universe

2021

DOI: 10.1016/j.dark.2021.100842

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Observational constraints on the cosmology with holographic dark fluid

Da Huang

Bum-Hoon Lee

Gansukh Tumurtushaa

et al.

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Cited by 2 publications

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“…The connection with braneworld models can be found in ref. [64] The key results of our numerical work are presented in table 1 and figure 1-3. The figures, as well as the table, have shown that our models explain the observational data as good as the ΛCDM model does for the current data.…”

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confidence: 99%

Generalized holographic cosmology: low-redshift observational constraint

Khimphun

Lee

Tumurtushaa

2021

J. High Energ. Phys.

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Four-dimensional cosmological models are studied on a boundary of a five-dimensional Anti-de Sitter (AdS5) black hole with AdS Reissner-Nordström and scalar charged Reissner-Nordström black hole solutions, where we call the former a “Hairless” black hole and the latter a “Hairy” black hole. To obtain the Friedmann-Robertson-Walker (FRW) spacetime metric on the boundary of the AdS5 black hole, we employ Eddington-Finkelstein (EF) coordinates to the bulk geometry. We then derive modified Friedmann equations on a boundary of the AdS5 black hole via AdS/CFT correspondence and discuss its cosmological implications. The late-time acceleration of the universe is investigated in our models. The contributions coming from the bulk side is treated as dark energy source, and we perform MCMC analyses using observational data. Compared to the ΛCDM model, our models contain additional free parameters; therefore, to make a fair comparison, we use the Akaike information criterion (AIC) and the Bayesian information criterion (BIC) to analyze our results. Our numerical analyses show that our models can explain the observational data as reliable as the ΛCDM model does for the current data.

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confidence: 99%

Generalized holographic cosmology: low-redshift observational constraint

Khimphun

Lee

Tumurtushaa

2021

J. High Energ. Phys.

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Pulsar timing residual induced by wideband ultralight dark matter with spin 0,1,2

2022

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Observational constraints on the cosmology with holographic dark fluid

Cited by 2 publications

References 47 publications

Generalized holographic cosmology: low-redshift observational constraint

Generalized holographic cosmology: low-redshift observational constraint

Pulsar timing residual induced by wideband ultralight dark matter with spin 0,1,2

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