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Konferenzbeitrag

Cyclic, ekpyrotic and little rip universe in modified gravity

MPG-Autoren
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Odintsov,  Sergei D.
Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1108.0767
(Preprint), 219KB

3deec52f8a436b1ca9.pdf
(beliebiger Volltext), 221KB

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Zitation

Nojiri, S., Odintsov, S. D., & Saez-Gomez, D. (2012). Cyclic, ekpyrotic and little rip universe in modified gravity. In AIP Conference Proceedings (pp. 207-221).


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0012-1BD0-9
Zusammenfassung
We propose the reconstruction of $F(R)$ gravity in such a way that corresponding theory admits cyclic and ekpyrotic universe solutions. The number of explicit examples of such $F(R)$ model is found. The comparison with the reconstructed scalar-tensor theory is made. We also present $F(R)$ gravity which provides the little rip evolution and gives the realistic gravitational alternative for $\Lambda$CDM cosmology. The time for little rip dissolution of bound structures in such theory is estimated. We demonstrate that transformed little rip $F(R)$ solution becomes qualitatively different cosmological solution with Big Bang type singularity in Einstein frame.