Teleparallel gravity: from theory to cosmology

S Bahamonde, KF Dialektopoulos… - Reports on Progress …, 2023 - iopscience.iop.org
Teleparallel gravity (TG) has significantly increased in popularity in recent decades, bringing
attention to Einstein's other theory of gravity. In this Review, we give a comprehensive …

Modified gravity and cosmology

EN Saridakis, R Lazkoz, V Salzano, PV Moniz… - 2021 - Springer
The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

Black holes in f (T, B) gravity: exact and perturbed solutions

S Bahamonde, A Golovnev, MJ Guzmán… - … of Cosmology and …, 2022 - iopscience.iop.org
Spherically symmetric solutions of theories of gravity built one fundamental class of solutions
to describe compact objects like black holes and stars. Moreover, they serve as starting point …

Symmetric teleparallel Gauss-Bonnet gravity and its extensions

JM Armaleo, S Bahamonde, G Trenkler, LG Trombetta - Physical Review D, 2023 - APS
General teleparallel theories assume that curvature is vanishing in which case gravity can
be solely represented by torsion and/or nonmetricity. Using differential form language, we …

Scalarized black holes in teleparallel gravity

S Bahamonde, L Ducobu, C Pfeifer - Journal of Cosmology and …, 2022 - iopscience.iop.org
Black holes play a crucial role in the understanding of the gravitational interaction. Through
the direct observation of the shadow of a black hole by the event horizon telescope and the …

Spontaneous scalarization of black holes in Gauss-Bonnet teleparallel gravity

S Bahamonde, DD Doneva, L Ducobu, C Pfeifer… - Physical Review D, 2023 - APS
In this paper, we find new scalarized black holes by coupling a scalar field with the Gauss-
Bonnet invariant in teleparallel gravity. The teleparallel formulation of this theory uses …

Global portraits of nonminimal teleparallel inflation

L Järv, J Lember - Universe, 2021 - mdpi.com
We construct global phase portraits of inflationary dynamics in teleparallel gravity models
with a scalar field nonminimally coupled to torsion scalar. The adopted set of variables can …

[HTML][HTML] Observational constraints for cubic gravity theory based on third order contractions of the Riemann tensor

M Marciu, DM Ioan, M Dragomir - The European Physical Journal C, 2024 - Springer
The paper studies different observational features in the case of a specific cubic gravity
theory, based on third order contractions of the Riemann tensor. Considering viable cosmic …

[HTML][HTML] Constraints on cubic and f (P) gravity from the cosmic chronometers, BAO & CMB datasets: Use of machine learning algorithms

K Giri, P Rudra - Nuclear Physics B, 2022 - Elsevier
In this work we perform an observational data analysis on Einsteinian cubic gravity and f (P)
gravity with the objective of constraining the parameter space of the theories. We use the 30 …

The first variation of the matter energy–momentum tensor with respect to the metric, and its implications on modified gravity theories

Z Haghani, T Harko, S Shahidi - Physics of the Dark Universe, 2024 - Elsevier
The first order variation of the matter energy–momentum tensor T μ ν with respect to the
metric tensor g α β plays an important role in modified gravity theories with geometry-matter …