The role of energy conditions in f(R) cosmology

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Jun 2018Embargo end date: 01 Jan 2018 Italy English Publisher:Elsevier BVJournal:Physics Letters B, volume 781, pages 99-106 (issn: 0370-2693,

Copyright policy )Funded by:FCT | D4

Authors: Salvatore Capozziello; Shin'ichi Nojiri; Sergei D. Odintsov;

doi: 10.1016/j.physletb.2018.03.064 , 10.48550/arxiv.1803.08815

arXiv: 1803.08815

handle: 11588/717098

The role of energy conditions in f(R) cosmology

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Abstract

Energy conditions can play an important role in defining the cosmological evolution. Specifically acceleration/deceleration of cosmic fluid, as well as the emergence of Big Rip singularities, can be related to the constraints imposed by the energy conditions. Here we discuss this issue for $f(R)$ gravity considering also conformal transformations. Cosmological solutions and equations of state can be classified according to energy conditions. The qualitative change of some energy conditions for transformations from the Jordan frame to the Einstein frame is also observed.

13 pages, to be published in Physics Letters B

Country

Italy

Related Organizations

Spanish National Research Council
Spain
University Federico II of Naples
Italy
High Energy Accelerator Research Organization
Japan
Nagoya University
Japan
Institución Catalana de Investigación y Estudios Avanzados
Spain

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Keywords

General Relativity and Quantum Cosmology; General Relativity and Quantum Cosmology; astro-ph.CO; High Energy Physics - Theory, High Energy Physics - Theory, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics, QC1-999, alternative theories of gravity, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Relativistic gravitational theories other than Einstein's, including asymmetric field theories, General Relativity and Quantum Cosmology, High Energy Physics - Theory (hep-th), astro-ph.CO, energy conditions, cosmology, Relativistic cosmology, Astrophysics - Cosmology and Nongalactic Astrophysics

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