FLRW cosmology in Weyl type f (Q) gravity and observational constraints

GK Goswami, R Rani, JK Singh, A Pradhan - Journal of High Energy …, 2024‏ - Elsevier
Inspired by various works in a Weyl type f (Q) gravity to reduce some serious problems in
General Relativity Theory (GR), we develop a model of the universe in a Weyl type f (Q) …

A four parameters quark star in quadratic f (Q)− action

P Bhar, KN Singh, SK Maurya, M Govender - Physics of the Dark Universe, 2024‏ - Elsevier
In this collaborative work, we model charged compact objects within the framework of f (Q)
gravity. We assume a quadratic form for the metricity function cast as f (Q)= Q+ a Q 2 where a …

[HTML][HTML] A comprehensive parametrization approach for the Hubble parameter in scalar field dark energy models

M Koussour, N Myrzakulov, S Myrzakulova, D Sofuoğlu - Results in Physics, 2023‏ - Elsevier
This study proposes a novel parametrization approach for the dimensionless Hubble
parameter ie E 2 (z)= A (z)+ β (1+ γ B (z)) in the context of scalar field dark energy models …

Constrained ΛCDM dark energy models in higher derivative f (R, Lm)-gravity theory

DC Maurya - Physics of the Dark Universe, 2023‏ - Elsevier
In the present paper, we have investigated dark energy scenarios in higher derivative f (R, L
m) gravity theory in a flat spacetime universe by constraining cosmographic series of Hubble …

Singularity free cosmological models in viscous symmetric teleparallel gravity

MM Gohain, K Bhuyan - Physics of the Dark Universe, 2024‏ - Elsevier
In this paper, we have investigated the possibility of deriving exact non-singular
cosmological solutions in a combined scenario of bulk viscous fluid and symmetric …

The impact of the non-coincidence gauge on the dark energy dynamics in f(Q)-gravity

A Paliathanasis - General Relativity and Gravitation, 2023‏ - Springer
We study the dynamical effects of the non-coincidence gauge on the geometric dark energy
within the framework of f Q-gravity. We specifically examine a spatially flat Friedmann …

Cosmological dynamics and observational constraints on a viable nonmetric gravity model

A Oliveros, MA Acero - International Journal of Modern Physics D, 2024‏ - World Scientific
Inspired by an exponential f (R) gravity model studied in the literature, in this work we
introduce a new and viable f (Q) gravity model, which can be represented as a perturbation …

From the Weyl-Schrödinger connection to the accelerating Universe: Extending Einstein's gravity via a length preserving nonmetricity

L Ming, SD Liang, HH Zhang, T Harko - Physical Review D, 2024‏ - APS
One of the important extensions of Riemann geometry is Weyl geometry, which is essentially
based on the ideas of conformal invariance and nonmetricity. A similar non-Riemannian …

Traces of Quantum Gravity Effects at Late-time Cosmological Dynamics via Distance Measures

M Roushan, N Rashidi, K Nozari - The Astrophysical Journal, 2024‏ - iopscience.iop.org
Inspired by the entropy–area relation of black hole thermodynamics, we study the
thermodynamics of the cosmological apparent horizon in a spatially flat Friedmann …

Transit dark energy models in Hoyle–Narlikar gravity with observational constraints

DC Maurya - Physics of the Dark Universe, 2025‏ - Elsevier
We discover the cosmic acceleration and physical characteristics of dark energy models in
Hoyle–Narlikar's theory of gravity with observational constraints. We identify analytical …