Cosmological bouncing solutions in f(T, B) gravity

  title={Cosmological bouncing solutions in f(T, B) gravity},
  author={Maura Caruana and Gabriel Farrugia and Jackson Levi Said},
  journal={The European Physical Journal C},
Teleparallel Gravity offers the possibility of reformulating gravity in terms of torsion by exchanging the Levi-Civita connection with the Weitzenböck connection which describes torsion rather than curvature. Surprisingly, Teleparallel Gravity can be formulated to be equivalent to general relativity for a appropriate setup. Our interest lies in exploring an extension of this theory in which the Lagrangian takes the form of f(T, B) where T and B are two scalars that characterize the equivalency… 

Bouncing Cosmology in Modified Gravity with Higher-Order Gauss–Bonnet Curvature Term

In this paper, we studied the bouncing behavior of the cosmological models formulated in the background of the Hubble function in the F(R,G) theory of gravity, where R and G, respectively, denote the

Cosmological perturbations in modified teleparallel gravity models: boundary term extension

Teleparallel gravity offers a new avenue in which to construct gravitational models beyond general relativity. While teleparallel gravity can be framed in a way to be dynamically equivalent to

Cosmological perturbations in modified teleparallel gravity models: boundary term extension

Teleparallel gravity offers a new avenue in which to construct gravitational models beyond general relativity. While teleparallel gravity can be framed in a way to be dynamically equivalent to

Kalb-Ramond field-induced cosmological bounce in generalized teleparallel gravity

One of the important open questions in high-energy physics is to understand the lack of evidence of Kalb-Ramond (KR) field, in particular in the present day cosmology. In this paper we aim to address

Bouncing solutions in f(T) gravity

We consider certain aspects of cosmological dynamics of a spatially curved Universe in f(T) gravity. Local analysis allows us to find conditions for bounces and for static solutions; these conditions

Minisuperspace Quantization of f(T, B) Cosmology

We discuss the quantization in the minisuperspace for the generalized fourth-order teleparallel cosmological theory known as fT, B. Specifically we focus on the case where the theory is linear on the

Non-local gravity in bouncing cosmology scenarios

In this work, we analyzed the improved Deser-Woodard non-local gravity over the background of five different bouncing cosmologies, whose premise is avoid the initial singular state of the universe.

The amplification of cosmological magnetic fields in extended f(T,B) teleparallel gravity

Observations indicate that intergalactic magnetic fields have amplitudes of the order of ∼ 10-6 G and are uniform on scales of ∼ 10 kpc. Despite their wide presence in the Universe, their origin

Dynamical complexity of the teleparallel gravity cosmology

This paper considers a generalisation of the dynamical system by imposing a non-constant degree of freedom over it which allows to rewrite a generic autonomous dynamical analysis.

Bouncing Cosmology in Extended Gravity and Its Reconstruction as Dark Energy Model

In this paper, we have presented a bouncing cosmological model of the Universe in an extended theory of gravity. The dynamical behaviour of the model obtained from the flat FLRW space‐time along with



Cosmological bouncing solutions in extended teleparallel gravity theories

In the context of extended Teleparallel gravity theories with a 3+1 dimensions Gauss-Bonnet analog term, we address the possibility of these theories reproducing several well-known cosmological

f(T) teleparallel gravity and cosmology

The role of torsion in gravity has been extensively investigated along the main direction of bringing gravity closer to its gauge formulation and incorporating spin in a geometric description, and various torsional constructions, from teleparallel, to Einstein-Cartan, and metric-affine gauge theories are reviewed.

Matter bounce cosmology with the f(T) gravity

We show that the f(T) gravitational paradigm, in which gravity is described by an arbitrary function of the torsion scalar, can provide a mechanism for realizing bouncing cosmologies, thereby

Teleparallel gravity

In general relativity, the only dynamical field describing the gravitational interaction of matter, is the metric. It induces the causal structure of spacetime, governs the motion of physical bodies

Bouncing cosmology with future singularity from modified gravity

We investigate which Jordan frame $F(R)$ gravity can describe a Type IV singular bouncing cosmological evolution, with special emphasis given near the point at which the Type IV singularity occurs.

Lorenz Gauge Fixing of $f(T)$ Teleparallel Cosmology

In teleparallel gravity, we apply Lorenz type gauge fixing to cope with redundant degrees of freedom in the vierbein field. This condition is mainly to restore the Lorentz symmetry of the

Cosmological perturbations in f(T) gravity

We investigate the cosmological perturbations in f(T) gravity. Examining the pure gravitational perturbations in the scalar sector using a diagonal vierbein, we extract the corresponding dispersion

Matter Bounce Loop Quantum Cosmology from F(R) Gravity

Using the reconstruction method, we investigate which F(R) theories, with or without the presence of matter fluids, can produce the matter bounce scenario of holonomy corrected Loop Quantum

Energy constraints and the phenomenon of cosmic evolution in the f(T,B) framework

Abstract.In this paper, we investigate the cosmological evolution in a new modified teleparallel gravity that connects both f(T) and f(R) theories with a boundary term B, called f(T,B) gravity. To

Gravitational waves in modified teleparallel theories

We investigate the gravitational waves and their properties in various modified teleparallel theories, such as $f(T), f(T,B)$ and $f(T,T_G)$ gravities. We perform the perturbation analysis both