Abstract

Maximal Coupling of Bianchi Type- II, VIII and IX Space-Time with HDE and DM in Gravity

Highlights

  • The Holographic Dark Energy (HDE) models have been emerged as a viable candidate to explain the problems of modern cosmology such as the recent accelerated expansion as well as the coincidence problem of the Universe in the recent years

  • The existence of this accelerated expansion is due to of two types, one is within the framework of General Relativity (GR), the cause of the acceleration can be attributed to the existence of a mysterious component of the Universe dubbed as Dark Energy, which makes up to 70% of the total cosmic energy in the Universe and second is to modification in an action of General Relativity called Modified gravity

  • We have studied non-viscous and viscous HDE cosmological models with Hubble horizon as an IR cut-off in the frame work of modified f (R,T) gravity

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Summary

INTRODUCTION

The HDE models have been emerged as a viable candidate to explain the problems of modern cosmology such as the recent accelerated expansion as well as the coincidence problem of the Universe in the recent years. Gravity have proposed by Harko et al [6], where R as usual stands for the Ricci scalar and T denotes the trace of energymomentum tensor This modified theory presents a maximal coupling between geometry and matter. R is the Ricci scalar and T represents the trace of the energy-momentum tensor while Lm denotes the matter Lagrangian density. Which are the field equations for non-viscous HDE of the modified f (R,T) gravity theory. In this model, let us assume the Universe filled with HDE plus pressure less Dark Matter (DM) (excluding baryonic matter), i.e. where Tihj and Timj represent the energy-momentum tensors of HDE and DM, respectively.

METRIC AND FIELD EQUATIONS
NON-VISCOUS HOLOGRAPHIC DARK ENERGY COSMOLOGICAL MODELS
VISCOUS HOLOGRAPHIC DARK ENERGY COSMOLOGICAL MODELS
Findings
CONCLUSIONS
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