https://doi.org/10.1140/epjc/s10052-020-08638-9
Regular Article – Theoretical Physics
Bouncing solutions in f(T) gravity
1
Kazan Federal University, Kremlevskaya 18, 420008, Kazan, Russia
2
Sternberg Astronomical Institute, Lomonosov Moscow State University, 119991, Moscow, Russia
Received:
1
October
2020
Accepted:
31
October
2020
Published online:
16
November
2020
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 appear to be in general less restrictive than in general relativity. We also provide a global analysis of the corresponding cosmological dynamics in the cases when bounces and static configurations exist, by constructing phase diagrams. These diagrams indicate that the fate of a big contracting Universe is not altered significantly when bounces become possible, since they appear to be inaccessible by a sufficiently big Universe.
© The Author(s) 2020
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