FRW Cosmology in $f(Q,T)$ Gravity

Abstract

In this paper, we considered the study of Friedmann-Robertson-Walker (FRW) model in the framework of $f(Q,T)$ gravity, an extension of symmetric teleparallel gravity, recently defined by Y. Xu et al. \cite{Xu}. The non-linear model $f(Q,T)=-\alpha Q-\beta T^2$, where $\alpha >0$ and $\beta >0$ are constants, is taken into account. The equation of state of perfect fluid is assumed and 31 points of Hubble data are used to constrain the value of model parameter. To explore the evolution of the universe, the numerical solutions of cosmological implications such as Hubble parameter, deceleration parameter, apparent magnitude and luminosity distance are determined and the energy conditions are examined. The theoretical results of Hubble parameter are compared with $\Lambda$CDM model. Further, 57 Supernova data (42 from Supernova cosmology project and 15 from Calán/ Tolono supernova survey) are also used to have consistent results of apparent magnitude and luminosity distance.

arXiv comment15 pages, 8 figures, accepted for publication in Int. J. Geom. Method. Mod. Phys

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• Evolutionary behaviour of cosmological parameters with dynamical system analysis in f (Q, T) gravity
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• Thin-Shell Gravastar Model in $f(Q,T)$ Gravity
• Physical Analysis of Spherical Stellar Structures in $f(\mathrm{Q},\mathrm{T})$ Theory
• Cosmological implications of the constant jerk parameter in $f(Q,T)$ gravity theory
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• A model-independent method with phantom divide line crossing in Weyl-type $f(Q,T)$ gravity
• Study of Viable Compact Stellar Structures in Non-Riemannian Geometry
• Observational Constraints on Hybrid Scale Factor in f(Q,T) Gravity with Anisotropic Space-Time
• $f(Q,T)$ gravity: From early to late-time cosmic acceleration
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• Effects of the matter Lagrangian degeneracy in $f(Q,T)$ gravity
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• Charged black hole solutions in $f(R,T)$ gravity coupled to nonlinear electrodynamics
• Exploring the viability of charged Spheres admitting non-metricity and matter source
• Metric-Affine Myrzakulov Gravity Theories
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