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Deceleration versus Acceleration Universe in Different Frames of $F(R)$ Gravity

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arxiv 1701.02381 v2 pith:U46SFUNX submitted 2017-01-09 gr-qc astro-ph.COhep-th

Sebastian Bahamonde , Sergei D. Odintsov , V.K. Oikonomou , Petr V.Tretyakov This is my paper · ORCID
classification gr-qcastro-ph.COhep-th
keywords frameuniverseacceleratingaccelerationcoupledfieldgravityscalar
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In this paper we study the occurrence of accelerating universe versus decelerating universe between the F(R) gravity frame (Jordan frame) and non-minimally coupled scalar field theory frame, and the minimally coupled scalar field theory frame (Einstein frame) for various models. As we show, if acceleration is imposed in one frame, it will not necessarily correspond to an accelerating metric when transformed in another frame. As we will demonstrate, this issue is model and frame-dependent but it seems there is no general scheme which permits to classify such cases.

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Cited by 2 Pith papers

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

  1. Viscosity in Isotropic Cosmological Backgrounds in General Relativity and Starobinsky Gravity

    gr-qc 2025-06 conditional novelty 6.0 of 10

    Shear viscosity does not affect the background expansion or the electromagnetic luminosity distance in isotropic cosmologies with a comoving fluid, also in Starobinsky gravity.

  2. Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution

    gr-qc 2017-05 accept novelty 2.0 of 10

    Modified gravity theories supply viable mathematical frameworks for inflation, bounces, and dark energy eras that match observational data.

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