The role of energy conditions in f(R) cosmology
| Autor: | Sergei D. Odintsov, Shin'ichi Nojiri, Salvatore Capozziello |
|---|---|
| Přispěvatelé: | Capozziello, Salvatore, Nojiri, Shin'Ichi, Odintsov, Sergei D. |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
High Energy Physics - Theory
Nuclear and High Energy Physics Equation of state Cosmology and Nongalactic Astrophysics (astro-ph.CO) FOS: Physical sciences Big Rip Conformal map General Relativity and Quantum Cosmology (gr-qc) Computer Science::Digital Libraries 01 natural sciences General Relativity and Quantum Cosmology Cosmology Acceleration Theoretical physics symbols.namesake 0103 physical sciences Some Energy Einstein 010303 astronomy & astrophysics Computer Science::Databases Physics 010308 nuclear & particles physics lcsh:QC1-999 High Energy Physics - Theory (hep-th) astro-ph.CO symbols Gravitational singularity lcsh:Physics Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physics Letters B, Vol 781, Iss, Pp 99-106 (2018) Università degli Studi di Napoli Federico II Physics Letters |
| ISSN: | 0370-2693 |
| Popis: | 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. Comment: 13 pages, to be published in Physics Letters B |
| Databáze: | OpenAIRE |
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