Bianchi type-I Barrow holographic dark energy model in symmetric teleparallel gravity

Abstract

In this work, we have discussed a spatially homogeneous and anisotropic Bianchi type-I space-time in the presence of Barrow holographic dark energy (infrared cut-off is the Hubble's horizon) proposed by Barrow recently (Physics Letters B 808 (2020): 135643) and matter in the framework of $f(Q)$ gravity where the non-metricity $Q$ is responsible for the gravitational interaction for the specific choice of $f(Q)=\lambda Q^2$ (where $\lambda <0$ is a constant). To find the exact solutions to the field equations we consider the deceleration parameter $q$ is a function of the Hubble's parameter $H$ i.e. $q=b-\frac{n}{H}$ (where $b$ and $n$ are constants). We have studied the physical behavior of important cosmological parameters such as the EoS parameter, BHDE and matter density, skewness parameter, squared sound speed, and ${\omega }_B-{\omega }_B^{{}^{\prime }}$ plane. Also, we constrain the values of the model parameters $b$ and $n$ using $57$ Hubble's parameter measurements.

IJMPA accepted version

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Cited by in corpus (4)

• Observational Constraints and Cosmological Implications of Scalar-Tensor $f(R,T)$ Gravity
• Anisotropic f(Q) gravity model with bulk viscosity
• Bulk viscous fluid in extended symmetric teleparallel gravity
• Quantum Entropy-Driven Modifications to Holographic Dark Energy in $f(G,T)$ Gravity