Year: 2011
Type: article
Abstract: The cosmological models based on teleparallel gravity with nonzero torsion are considered. To investigate the evolution of this theory, we consider the phase-space analysis of the f ( T ) theory. It shows when the tension scalar can be written as an inverse function of x where x = ρ e /(3 m pl 2 H 2 ) and T = g ( x ), the system is an autonomous one. Furthermore, the ω e −ω' e phase analysis is given out. We perform the dynamical analysis for the models f ( T ) = β T ln ( T / T 0 ) and f ( T ) = α m pl 2 (− T / m pl 2 ) n particularly. We find that the universe will settle into de-Sitter phase for both models. And we have examined the evolution behavior of the power law form in the ω ep −ω' ep plane.
Authors: Yi Zhang, Hui Li, Yungui Gong, Zong-Hong Zhu
Language: Hebrew
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2000643282