Interaction of divergence-free deceleration parameter in Weyl-type $f(Q,T)$ gravity

Abstract

We study an extension of symmetric teleparallel gravity i.e. Weyl-type $f(Q,T)$ gravity and the divergence-free parametrization of the deceleration parameter $q(z)=q_0+q_1\frac{z(1+z)}{1+z^2}$ ($q_0$ and $q_1$ are free constants) to explore the evolution of the universe. By considering the above parametric form of $q$, we derive the Hubble solution and further impose it in the Friedmann equations of Weyl-type $f(Q,T)$ gravity. To see whether this model can challenge the $\Lambda$CDM limits, we computed the constraints on the model parameters using the Bayesian analysis for the Observational Hubble data ($OHD$) and the Pantheon sample ($SNeIa$). Furthermore, the deceleration parameter depicts the accelerating behavior of the universe with the present value $q_0$ and the transition redshift $z_t$ (at which the expansion transits from deceleration to acceleration) with $1-\sigma$ and $2-\sigma$ confidence level. We also examine the evolution of the energy density, pressure, and effective equation of state parameters. Finally, we demonstrate that the divergence-free parametric form of the deceleration parameter is consistent with the Weyl-type $f(Q,T)$ gravity.

Chinese Journal of Physics published version

References in corpus (24)

• f(R,T) gravity
• Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z$\sim$2
• The teleparallel equivalent of general relativity
• Hubble parameter measurement constraints on the redshift of the deceleration-acceleration transition, dynamical dark energy, and space curvature
• Large Scale Structure as a Probe of Gravitational Slip
• Thermodynamic interpretation of the generalized gravity models with geometry - matter coupling
• Cosmography of f(R) gravity
• Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
• A parametric model for dark energy
• Cuscuton: A Causal Field Theory with an Infinite Speed of Sound
• Modelling wormholes in $f(R,T)$ gravity
• Weyl type $f(Q,T)$ gravity, and its cosmological implications
• Examining the evidence for dynamical dark energy
• $f(Q,T)$ gravity models with observational constraints
• Baryogenesis in $f(Q,\mathcal{T})$ Gravity
• Cosmological Perturbation Theory in $f(Q,T)$ Gravity
• Geodesic deviation, Raychaudhuri equation, Newtonian limit, and tidal forces in Weyl-type $f(Q,T)$ gravity
• Cosmological implications of modified gravity induced by quantum metric fluctuations
• Constraining effective equation of state in $f(Q,T)$ gravity
• Power-law cosmology in Weyl-type $f(Q,T)$ gravity
• Constraining the anisotropy of the Universe via Pantheon supernovae sample
• Connection independent formulation of general relativity
• Generalized Chaplygin gas and accelerating universe in $f(Q,T)$ gravity
• Phenomenological Reconstruction of $f(T)$ Teleparallel Gravity

Cited by in corpus (7)

• Paramerization of deceleration parameter in $f(Q)$ gravity
• A model-independent method with phantom divide line crossing in Weyl-type $f(Q,T)$ gravity
• Modified gravity from Weyl connection and the $f(R,\mathcal{A})$ extension
• Statistical and Observation Comparison of Weyl-Type $f(Q,T)$ Models with the $\Lambda$CDM Paradigm
• Revisiting kink-like parametrization and constraints using OHD/Pantheon+/BAO samples
• Qualitative behaviour of higher-curvature gravity with boundary terms i.e the f(Q) gravity models by dynamical system analysis
• Quintessence like behavior of symmetric teleparallel dark energy: Linear and nonlinear model