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Bounce cosmology in f(mathcal{R}) gravity

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arxiv 2102.03612 v1 pith:YCVL6FLW submitted 2021-02-06 gr-qc hep-th

Bounce cosmology in $f(\mathcal{R})$ gravity

classification gr-qc hep-th
keywords gravitymathcalcosmologymodelsbouncecosmologicaldifferentmodified
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

In this paper, we analyze the modified $f(\mathcal{R})$ gravity models in Friedmann--Lema\^{\i}tre--Robertson--Walker (FLRW) background. The actions of bouncing cosmology are studied under consideration of different viable models in $f(\mathcal{R})$ gravity theory that can resolve the difficulty of singularity in standard Big-Bang cosmology. Under different viable models in $f(\mathcal{R})$ gravity theory, the cosmological constraints are plotted in provisions of cosmic-time, then investigated the bounce circumstance. In addition, the red-shift parameter is used to reconstruct the modified gravity, and compile the cosmological parameters that infer accelerated universe expansion. Finally, the situation stability is evaluated with a sound speed feature, which illustrates late-time stability.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Bouncing Cosmology in Interacting Scalar-Torsion Gravity

    gr-qc 2025-08 conditional novelty 3.0

    Two interacting scalar-torsion models are shown, by tuned numerical construction, to host a matter bounce with phantom equation of state and NEC violation at the bounce epoch.