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arXiv · 2112.05789

Interaction of Anisotropic Dark Energy with Generalized Hybrid Expansion Law

Md. Khurshid Alam·S. Surendra Singh·L. Anjana Devi
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Abstract

Interaction of dark energy in the anisotropic Locally Rotationally Symmetric (LRS) Bianchi type-I metric is investigated in the context of modified f(R,T) theory of gravity, where R is the Ricci scalar and T is the trace of stress energy momentum tensor. We choose the particular form of the functional f(R,T)=f_1 (R,T)+f_2 (R,T) then we find the exact solutions of the field equations by applying inhomogeneous equation of state, p= ω\r{ho}-Λ(t) and a generalized form of hybrid expansion law. Transition of deceleration to acceleration is observed in this model. It is also observed that the Universe shows accelerated expansion at late epoch. The derived model overlaps with ΛCDM at late time which is in agreement with present observation. Energy conditions of the derived model are also investigated. From the plot, we observe the age of Universe t_0=13.821 Gyr for the observed H_0=70.07Kms^(-1) Mpc^(-1). The physical and geometrical behaviours of these models are also discussed.

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Md. Khurshid Alam, S. Surendra Singh, L. Anjana Devi. 2021-12-10. Interaction of Anisotropic Dark Energy with Generalized Hybrid Expansion Law. https://arxiv.org/abs/2112.05789

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