Energy conditions in modified f(G) gravity

2017/07/24 by Kazuharu Bamba, M. Ilyas, M. Z. Bhatti +1 · 162 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Curvature #Differential geometry #Energy (signal processing) #Gauss–Bonnet gravity #Gravitational singularity #Jerk #Metric (unit) #Noncommutative and Quantum Gravity Theories #Null (SQL) #astro-ph.CO #f(R) gravity #gr-qc #hep-th

paper · pdf · doi:10.1007/s10714-017-2276-x

published in General Relativity and Gravitation 49(8) (Springer Science+Business Media) · 17 pages, 5 figures, version accepted for publication in General Relativity and Gravitation

arxiv created 2017/07/24 · openalex publication_date 2017/07/29 · openalex created_date 2017/07/31 · arxiv updated 2017/08/08 · openalex updated_date 2026/08/05

Abstract

In this paper, we have considered flat Friedmann-Lemaître-Robertson-Walker metric in the framework of perfect fluid models and modified f(G) gravity (where G is the Gauss Bonnet invariant). Particularly, we have considered particular realistic f(G) configurations that could be used to cure finite-time future singularities arising in the late-time cosmic accelerating epochs. We have then developed the viability bounds of these models induced by weak and null energy conditions, by using the recent estimated numerical figures of the deceleration, Hubble, snap and jerk parameters.

Citations

• Extended theories of gravity and their cosmological and astrophysical applications

Cited by

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• Correspondence between particle creation and dark components interaction in the context of f(G) gravity
• Influence of f (R) f ( R ) models on the existence of anisotropic self-gravitating systems
• Regular black holes in f(G) gravity
• A complete study of conformally flat pseudo-symmetric spacetimes in the theory of F ( R ) -gravity

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