General covariant symmetric teleparallel cosmology

M Hohmann - Physical Review D, 2021 - APS
Symmetric teleparallel gravity theories, in which the gravitational interaction is attributed to
the nonmetricity of a flat, symmetric, but not metric-compatible affine connection, have been …

Cosmological perturbation theory in f (Q, T) gravity

A Nájera, A Fajardo - Journal of Cosmology and Astroparticle …, 2022 - iopscience.iop.org
We developed the cosmological linear theory of perturbations for f (Q, T) gravity, which is an
extension of symmetric teleparallel gravity, with Q the non-metricity and T the trace of the …

Static spherically symmetric wormholes in gravity

M Tayde, Z Hassan, PK Sahoo, S Gutti - arXiv preprint arXiv:2206.01184, 2022 - arxiv.org
In this article we obtain wormhole solutions in the recently proposed extension of symmetric
teleparallel gravity called $ f (Q, T) $ gravity. Here, the gravitational Lagrangian $ L $ is …

Non-exotic static spherically symmetric thin-shell wormhole solution in f (Q, T) gravity

M Tayde, S Ghosh, PK Sahoo - Chinese Physics C, 2023 - iopscience.iop.org
In this study, we conduct an analysis of traversable wormhole solutions within the framework
of linear $ f (Q, T)=\alpha Q+\beta T $ gravity, ensuring that all energy conditions hold for the …

Tsallis holographic dark energy scenario in viscous gravity with tachyon field

S Gupta, A Dixit, A Pradhan - International Journal of Geometric …, 2023 - World Scientific
This study investigates a bulk viscous fluid anisotropic cosmological model with f (Q) gravity.
Here, Q stands for the nonmetricity factor that drives gravitational interaction. We …

Weyl type f (Q, T) gravity observational constrained cosmological models

R Bhagat, SA Narawade, B Mishra - Physics of the Dark Universe, 2023 - Elsevier
In this paper, we have studied the dynamical aspects of the cosmological model of the
Universe in the Weyl type f (Q, T) gravity, which is an extension of symmetric teleparallel …

Evolutionary behaviour of cosmological parameters with dynamical system analysis in f(QT) gravity

L Pati, SA Narawade, SK Tripathy, B Mishra - The European Physical …, 2023 - Springer
We have investigated the accelerating behaviour of the Universe in f (Q, T) gravity in an
isotropic and homogeneous space-time. We have initially derive the dynamical parameters …

Quintessence Universe and cosmic acceleration in f (Q, T) gravity

M Koussour, N Myrzakulov, SH Shekh… - International Journal of …, 2022 - World Scientific
The problem of cosmic acceleration and dark energy is one of the mysteries presently posed
in the scientific society that general relativity has not been able to solve. In this work, we …

Late-time acceleration from ekpyrotic bounce in gravity

AR Lalke, GP Singh, A Singh - International Journal of Geometric …, 2023 - World Scientific
In this paper, we investigate the late-time accelerated universe evolution in a flat,
homogeneous and isotropic model in the context of f (Q, T) gravity, where Q and T are non …

[HTML][HTML] New emergent observational constraints in f (Q, T) gravity model

SH Shekh, A Bouali, A Pradhan, A Beesham - Journal of High Energy …, 2023 - Elsevier
In the current study, we inspect the late-time acceleration of the universe in f (Q, T) gravity. In
this theory, Q represents the non-metricity term and with T μ ν the energy-momentum tensor …