Bounce Models within Teleparallel modified gravity

Abstract

In this paper, working in a Friedman-Lemaitre-Robertson-Walker (FLRW), first, in the flat case, we recover the generalized Friedman equation of Quantum Loop cosmology, and therefore the cosmological bounce, in the framework of modified teleparallel gravity $f(T)$-model, $T$ being the torsion scalar introduced in teleparallel gravity approach, without invoking unconventional exotic matter. Furthermore we study the associated perturbations again in a flat FLRW space-time. Then, we generalize the results to the curved FLRW space-time, where some issues related to the choice of tetrad exist, by using an appropriate formulation. In this context, the results of Born-Infeld model are also investigated.

arXiv comment13 pages, version accepted for publication on PRD

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Cited by in corpus (15)

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• A class of static spherically symmetric solutions in $f(Q)$-gravity
• General cosmological perturbations in teleparallel gravity
• The dark side of the torsion: Dark Energy from propagating torsion
• A frame based approach to computing symmetries with non-trivial isotropy groups
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