Hyperbolic Scenario of Accelerating Universe in Modified Gravity

Throughout this study, locally rotationally symmetric (LRS) Bianchi type-V space-time is pondered with Tsallis holographic dark energy (THDE) with the Granda–Oliveros (GO) cut-off in the Sáez–Ballester (SB) theory of gravity. A parameterization of the deceleration parameter (q) has been suggested: q...

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Published in:Symmetry (Basel) 2023-06, Vol.15 (6), p.1238
Main Authors: Khan, Raja Azhar Ashraaf, Tiwari, Rishi Kumar, Bharali, Jumi, Bouali, Amine, Yildiz, G. Dilara Açan, Güdekli, Ertan
Format: Article
Language:English
Subjects:
Acceleration
Analysis
Cosmology
Dark energy
Deceleration
Entropy
Gravitation theory
Gravity
Markov chains
Markov processes
Mathematical models
Monte Carlo method
Parameterization
Parameters
Phase transitions
Universe
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Summary:Throughout this study, locally rotationally symmetric (LRS) Bianchi type-V space-time is pondered with Tsallis holographic dark energy (THDE) with the Granda–Oliveros (GO) cut-off in the Sáez–Ballester (SB) theory of gravity. A parameterization of the deceleration parameter (q) has been suggested: q=α−βH2. The proposed deceleration parameterization demonstrates the Universe’s phase transition from early deceleration to current acceleration. Markov chain Monte Carlo (MCMC) was utilized to have the best-fit value for our model parameter and confirm that the model satisfies the recent observational data. Additional parameters such as deceleration parameter q with cosmographic parameters jerk, snap, and lerk have also been observed physically and graphically. The constructed model is differentiated from other dark energy models using statefinder pair analysis. Some important features of the model are discussed physically and geometrically.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym15061238