# Generalized tachyonic teleparallel cosmology

@article{Bahamonde2019GeneralizedTT, title={Generalized tachyonic teleparallel cosmology}, author={Sebastian Bahamonde and Mihai Marciu and Jackson Levi Said}, journal={The European Physical Journal C}, year={2019}, volume={79}, pages={1-10} }

In this paper we propose a new dark energy model in the teleparallel alternative of general relativity, by considering a generalized non-minimal coupling of a tachyonic scalar field with the teleparallel boundary term. Within the framework of teleparallel gravity, the boundary coupling term is associated with the divergence of the torsion vector. Considering the linear stability technique for various potentials and couplings, we have analyzed the dynamical properties of the present tachyonic…

## 11 Citations

### Tachyonic cosmology with cubic contractions of the Riemann tensor

- PhysicsThe European Physical Journal C
- 2022

A new cosmological theory is proposed in the theoretical framework of modified gravity theories which is based on a tachyonic field non-minimally coupled with a specific topological invariant…

### Flat Connection for Rotating Vacuum Spacetimes in Extended Teleparallel Gravity Theories

- PhysicsUniverse
- 2019

Teleparallel geometry utilizes Weitzenböck connection which has nontrivial torsion but no curvature and does not directly follow from the metric like Levi–Civita connection. In extended teleparallel…

### Flat connection for rotating spacetimes in extended teleparallel gravity theories

- Physics
- 2019

Teleparallel geometry utilizes Weitzenbock connection which has nontrivial torsion but no curvature and does not directly follow from the metric like Levi-Civita connection. In extended teleparallel…

### Exploring axial symmetry in modified teleparallel gravity

- Physics
- 2021

Axially symmetric spacetimes play an important role in the relativistic description of rotating astrophysical objects like black holes, stars, etc. In gravitational theories that venture beyond the…

### Can Horndeski theory be recast using teleparallel gravity?

- PhysicsPhysical Review D
- 2019

Horndeski gravity is the most general scalar tensor theory, with a single scalar field, leading to second order field equations and after the GW170817 it has been severely constrained. In this paper,…

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

- Physics, MathematicsJournal of Cosmology and Astroparticle Physics
- 2022

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 for the…

### Cosmology of cubic galileon in modified teleparallel gravity

- PhysicsThe European Physical Journal C
- 2021

In this present paper, we study the cosmological evolution of the cubic galileon along with modified teleparallel gravity at perturbed and non-perturbed levels. We show the dynamical equations of…

### Generalized tachyonic teleparallel gravity: cosmic and thermodynamic aspects

- Materials ScienceThe European Physical Journal Plus
- 2021

We analyze the cosmological parameters and thermodynamics of a newly proposed generalized tachyonic teleparallel gravity whose action contains a non-minimal coupling of the teleparallel boundary term…

## References

SHOWING 1-10 OF 61 REFERENCES

### Dynamics of Generalized Tachyon Field in Teleparallel Gravity

- Physics
- 2014

We study dynamics of generalized tachyon scalar field in the framework of teleparallel gravity. This model is an extension of tachyonic teleparallel dark energy model which has been proposed by…

### Tachyonic teleparallel dark energy

- Physics
- 2012

Teleparallel gravity is an equivalent formulation of general relativity in which instead of the Ricci scalar R, one uses the torsion scalar T for the Lagrangian density. Recently teleparallel dark…

### Symmetron and de Sitter attractor in a teleparallel model of cosmology

- Physics
- 2017

In the teleparallel framework of cosmology, a quintessence with non-minimal couplings to the scalar torsion and a boundary term is considered. A conformal coupling to matter density is also taken…

### Scaling attractors in interacting teleparallel dark energy

- Physics
- 2013

It has been proposed recently the existence of a non-minimal coupling between a canonical scalar field (quintessence) and gravity in the framework of teleparallel gravity, motivated by similar…

### Scalar–tensor teleparallel gravity with boundary term by Noether symmetries

- PhysicsInternational Journal of Geometric Methods in Modern Physics
- 2018

In the framework of teleparallel gravity, the Friedman–Robertson–Walker (FRW) cosmological model with scalar tensor theory, where scalar field is non-minimally coupled to both the torsion scalar and…

### Dynamical system analysis for an interacting scalar-torsion theory

- PhysicsChinese Journal of Physics
- 2018

### Generalised teleparallel quintom dark energy non-minimally coupled with the scalar torsion and a boundary term

- Physics
- 2018

Within this work, we propose a new generalised quintom dark energy model in the teleparallel alternative of general relativity theory, by considering a non-minimal coupling between the scalar fields…

### Dynamical properties of scaling solutions in teleparallel dark energy cosmologies with nonminimal coupling

- Physics
- 2017

The dynamical aspects of scaling solutions for the dark energy component in the theoretical framework of teleparallel gravity are considered, where dark energy is represented by a scalar field…

### A novel teleparallel dark energy model

- Physics
- 2016

Although equivalent to general relativity, teleparallel gravity (TG) is conceptually speaking a completely different theory. In this theory, the gravitational field is described by torsion, not by…

### Teleparallel quintessence with a nonminimal coupling to a boundary term

- Mathematics, Physics
- 2015

We propose a new model in the teleparallel framework where we consider a scalar field nonminimally coupled to both the torsion $T$ and a boundary term given by the divergence of the torsion vector…