Amended FRW Metric and Rényi Dark Energy Model

Author:

Ali Sarfraz1,Iqbal Sabir2,Khan Khuram Ali3ORCID,Moradi Hamid Reza4ORCID

Affiliation:

1. Department of Mathematics, University of Education, Lahore, Pakistan

2. Riphah International University Faisalabad Campus, Pakistan

3. Department of Mathematics, University of Sargodha, Sargodha, Pakistan

4. Department of Mathematics, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran

Abstract

This article is devoted to exploring the Rényi holographic dark energy model in the theory of Chern-Simons modified gravity. We studied the deceleration parameter, equation of state, and cosmological plane considering the Amended FRW modal. Modified field equations of -gravity theory gave two independent solutions. In the first case, this model provided the transitional change from deceleration to acceleration compatible with collected observational data. However, it supported a decelerating phase of expansion only in the second case. It was noted that the Equation of State advocated the dominance era under the influence of dark energy in the first case and the second predicted the influence of Λ CDM. In both cases, ω < 0 , ω < 0 voted that the universe is in a freezing region and its cosmic expansion is more rapidly accelerated in the background of Chern-Simons modified gravity.

Publisher

Hindawi Limited

Subject

Nuclear and High Energy Physics

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Amended FRW universe: thermodynamics and heat engine;The European Physical Journal C;2024-02-07

2. Sharma–Mittal holographic dark energy and scalar field in Bianchi type-I cosmology;General Relativity and Gravitation;2023-12-19

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