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Cosmic Evolution of Holographic Dark Energy in f(mathcal{G},T) Gravity
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Cosmic Evolution of Holographic Dark Energy in f(mathcal{G},T) Gravity
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The aim of this paper is to analyze the cosmological evolution of holographic dark energy in $f(\mathcal{G},T)$ gravity ($\mathcal{G}$ and $T$ represent the Gauss-Bonnet invariant and trace of the energy-momentum tensor, respectively). We reconstruct $f(\mathcal{G},T)$ model through correspondence scheme using power-law form of the scale factor. The qualitative analysis of the derived model is investigated with the help of evolutionary trajectories of equation of state, deceleration as well as state-finder diagnostic parameters and $\omega_{_{\mathcal{G}T}}-{\omega}'_{_{\mathcal{G}T}}$ cosmological phase plane. It is found that the equation of state parameter represents phantom epoch of the Universe whereas the deceleration parameter illustrates the accelerated phase. The state-finder plane corresponds to Chaplygin gas model while the freezing region is attained in $\omega_{_{\mathcal{G}T}}-{\omega}'_{_{\mathcal{G}T}}$ plane.
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