Changes In The Role Of Energy Conditions In F (R) Cosmology By The Acceleration Of Universe

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS(2018)

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摘要
Recently, the role of energy conditions in f(R)-cosrnology has been investigated. We generalize these results to Bionic systems in accelerating systems and show that the energy conditions can be changed in this system. We show that f(R)-gravity produces a wormhole between two universes and forms a Bionic system. On the other hand, the acceleration creates two regions in the Rindler space-time which BIon in each region acts reverse to other in another region. This means that by the expansion of universes of the BIon in one region, universes of another BIon in other regions contract. Also, in this model, by increasing the order of curvatures in f (R) gravity, the energy and the entropy of system in one region increases and in Other region decreases. Amount of this growth or decrease in the energy depends on the acceleration of universes..Finally, by calculating the dark energy equation of state, we observe that one universe enters to phantom phase and goes toward the big rip singularity and another goes out of phantom state.
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关键词
Universe, f (R), acceleration, Bionic system
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