Observational constraints on two cosmological models of f(Q) theory

M Koussour, A De - The European Physical Journal C, 2023 - Springer
In the past few years, f (Q) theories have drawn a lot of research attention in replacing
Einstein's theory of gravity successfully. The current study examines the novel cosmological …

[HTML][HTML] Phase-space analysis of a novel cosmological model in f (Q) theory

H Shabani, A De, TH Loo - The European Physical Journal C, 2023 - Springer
The vanishing affine connections have been used solely while adopting the modified f (Q)
gravity theory to the cosmology. Consequently, researchers could not get beyond what is …

Data reconstruction of the dynamical connection function in f(Q) cosmology

Y Yang, X Ren, B Wang, YF Cai… - Monthly Notices of the …, 2024 - academic.oup.com
We employ Hubble data and Gaussian Processes in order to reconstruct the dynamical
connection function in cosmology beyond the coincident gauge. In particular, there exist …

Thermodynamics and shadows of GUP-corrected black holes with topological defects in Bumblebee gravity

R Karmakar, DJ Gogoi, UD Goswami - Physics of the Dark Universe, 2023 - Elsevier
In this work we investigate a Schwarzschild-type black hole that is corrected by the
Generalised Uncertainty Principle (GUP) and possesses topological defects within the …

Cosmology of f(Q) gravity in non-flat Universe

H Shabani, A De, TH Loo, EN Saridakis - The European Physical Journal …, 2024 - Springer
We investigate the cosmological implications of f (Q) gravity, which is a modified theory of
gravity based on non-metricity, in non-flat geometry. We perform a detailed dynamical …

On the viability of f (Q) gravity models

A De, TH Loo - Classical and Quantum Gravity, 2023 - iopscience.iop.org
In general relativity, the contracted Bianchi identity makes the field equation compatible with
the energy conservation, likewise in f (R) theories of gravity. We show that this classical …

Anisotropic LRS-BI Universe with f (Q) gravity theory

P Sarmah, A De, UD Goswami - Physics of the Dark Universe, 2023 - Elsevier
The possible anisotropic nature in the early phases of the Universe is one of the interesting
aspects of study in cosmology. We investigate the evolution of the Universe in terms of few …

Non-metricity with bounday terms: gravity and cosmology

A De, TH Loo, EN Saridakis - arxiv preprint arxiv:2308.00652, 2023 - arxiv.org
We formulate $ f (Q, C) $ gravity and cosmology. Such a construction is based on the
symmetric teleparallel geometry, but apart form the non-metricity scalar $ Q $ we incorporate …

Non-metricity with boundary terms: 𝖿 (𝖰, 𝖢) gravity and cosmology

A De, TH Loo, EN Saridakis - Journal of Cosmology and …, 2024 - iopscience.iop.org
We formulate f (Q, C) gravity and cosmology. Such a construction is based on the symmetric
teleparallel geometry, but apart form the non-metricity scalar Q we incorporate in the …

Anisotropic Universe in f (Q, T) gravity, a novel study

TH Loo, M Koussour, A De - Annals of Physics, 2023 - Elsevier
Abstract f (Q, T) theory of gravity is very recently proposed to incorporate within the action
Lagrangian, the trace T of the energy–momentum tensor along with the non-metricity scalar …