Abstract

Scalar-tensor theories offer the prospect of explaining the cosmological evolution of the Universe through an effective description of dark energy as a quantity with a non-trivial evolution. In this work, we investigate this feature of scalar-tensor theories in the teleparallel gravity context. Teleparallel gravity is a novel description of geometric gravity as a torsional- rather than curvature-based quantity which presents a new foundational base for gravity. Our investigation is centered on the impact of a nontrivial input from the kinetic term of the scalar field. We consider a number of model settings in the context of the dynamical system to reveal their evolutionary behavior. We determine the critical points of these systems and discuss their dynamics.

Details

Title
Teleparallel scalar-tensor gravity through cosmological dynamical systems
Author
Kadam, S. A. 1 ; Mishra, B. 1 ; Said, Jackson Levi 2   VIAFID ORCID Logo 

1  Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Department of Mathematics, Hyderabad, India (GRID:grid.466497.e) (ISNI:0000 0004 1772 3598) 
2  University of Malta, Institute of Space Sciences and Astronomy, Msida, Malta (GRID:grid.4462.4) (ISNI:0000 0001 2176 9482); University of Malta, Department of Physics, Msida, Malta (GRID:grid.4462.4) (ISNI:0000 0001 2176 9482) 
Publication year
2022
Publication date
Aug 2022
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1140/epjc/s10052-022-10648-8
ProQuest document ID
2698979477
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.