Energy conditions in f(G, T) gravity

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Abstract

The aim of this paper is to introduce a new modified gravity theory named f(G, T) gravity (G and T are the Gauss–Bonnet invariant and trace of the energy-momentum tensor, respectively) and investigate energy conditions for two reconstructed models in the context of FRW universe. We formulate general field equations, divergence of energy-momentum tensor, equation of motion for test particles as well as corresponding energy conditions. The massive test particles follow non-geodesic lines of geometry due to the presence of an extra force. We express the energy conditions in terms of cosmological parameters like the deceleration, jerk, and snap parameters. The reconstruction technique is applied to this theory using de Sitter and power-law cosmological solutions. We analyze the energy bounds and obtain feasible constraints on the free parameters.

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APA

Sharif, M., & Ikram, A. (2016). Energy conditions in f(G, T) gravity. European Physical Journal C, 76(11). https://doi.org/10.1140/epjc/s10052-016-4502-1

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