Anisotropic Universe with Manimally Interacting Matter and Holographic Dark Energy
Keywords:Holographic dark energy (HDE), Bianchi type-III model, Brans-Dicke theory, Jerk parameter
The holographic dark energy (HDE), a form of dark energy, has been a useful tool in explaining the recent phase transition of the universe. In this paper, we study the anisotropic and homogeneous Bianchi type-III model of the universe filled with minimally interacting matter and holographic dark energy under the framework of the Brans-Dicke (BD) scalar tensor theory of gravitation. Considering two physically plausible conditions such as, (i) the special law of variation for Hubble parameter and (ii) the scalar expansion proportional to the shear scalar, we propose two new models namely, exponential expansion model and power law expansion model. We also show the dynamics of these models fit with existing observational data and literature thereof. The transit behavior of the equation of state parameter for dark energy has been analyzed graphically. The jerk parameter is also studied for both of the models describing cosmological evolution.
The Chittagong Univ. J. Sci. 42(1): 39-57, 2020
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Copyright (c) 2020 Mohammad Moksud Alam
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