Cold dark matter and holographic dark energy in f(R,T) theory of gravity

被引：4

作者：

Solanke, Y. S. ^{[1
]}

Nakade, T. D. ^{[2
]}

Pawar, D. D. ^{[3
]}

Dagwal, V. J. ^{[4
]}

机构：

[1] Mungasaji Maharaj Mahavidyalaya, Dept Math, Yavatmal 445202, India

[2] G S Tompe Arts Commerce & Sci Coll, Dept Math, Chandur Bazar, Amravati 444704, India

[3] S R T M Univ, Sch Math Sci, Nanded 431606, Maharashtra, India

[4] Govt Coll Engn, Dept Math, Nagpur 441108, India

来源：

MODERN PHYSICS LETTERS A | 2024年 / 39卷 / 05期

关键词：

Dark energy; LRS Bianchi Type-I space-time; f(R; T); theory; PROBE WMAP OBSERVATIONS; COSMOLOGICAL CONSTANT; F R; STATEFINDER DIAGNOSIS; PARTICLE PHYSICS; MODEL; CONSISTENT; UNIVERSE; ACCELERATION; CONSTRAINTS;

D O I：

10.1142/S0217732324500068

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this study, we have examined the cosmological model of the locally rotationally symmetric (LRS) Bianchi Type-I universe within the framework of the f(R,T) theory of gravity. The f(R,T) theory incorporates the Ricci scalar (R) and the trace of the energy-momentum tensor (T) in its formulation. Our investigation focuses on the cold dark matter (CDM) and holographic dark energy (DE) cosmological models, particularly in relation to the occurrence of a big rip singularity. To solve the field equation, we have assumed a specific relationship between the parameters, alpha and beta, where alpha is proportional to m beta and m is held constant. We have examined the existence of both the Big Bang and Big Rip singularities within this cosmological model. Additionally, we have analysed the state-finder parameter, which provides insights into the dynamics and evolution of the universe. Furthermore, we have discussed the physical and geometrical parameters of the universe in this context. These parameters help characterize and describe the behavior of the universe, shedding light on its underlying properties and dynamics. Through our investigation, we aim to deepen our understanding of the LRS Bianchi Type-I cosmological model within the f(R,T) theory of gravity, exploring the interplay between CDM, holographic DE, singularities, and the various parameters that contribute to the understanding of the universe.

引用

页数：19

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