https://doi.org/10.1140/epjc/s10052-022-10648-8
Regular Article - Theoretical Physics
Teleparallel scalar-tensor gravity through cosmological dynamical systems
1
Department of Mathematics, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, 500078, Hyderabad, India
2
Institute of Space Sciences and Astronomy, University of Malta, MSD 2080, Msida, Malta
3
Department of Physics, University of Malta, Msida, Malta
Received:
16
May
2022
Accepted:
27
July
2022
Published online:
5
August
2022
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.
© The Author(s) 2022
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