Possible evolution of a bouncing universe in cosmological models with non-minimally coupled scalar fields
| Autor: | Sergey Yu. Vernov, Maria A. Skugoreva, Alexey Toporensky, Ekaterina O. Pozdeeva |
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| Rok vydání: | 2016 |
| Předmět: |
High Energy Physics - Theory
Cosmology and Nongalactic Astrophysics (astro-ph.CO) media_common.quotation_subject Scalar (mathematics) FOS: Physical sciences Cosmological constant Astrophysics::Cosmology and Extragalactic Astrophysics General Relativity and Quantum Cosmology (gr-qc) Curvature 01 natural sciences General Relativity and Quantum Cosmology symbols.namesake 0103 physical sciences 010306 general physics media_common Physics Inflation (cosmology) 010308 nuclear & particles physics Astronomy and Astrophysics Universe Classical mechanics High Energy Physics - Theory (hep-th) symbols Scalar field Astrophysics - Cosmology and Nongalactic Astrophysics Hubble's law Induced gravity |
| DOI: | 10.48550/arxiv.1608.08214 |
| Popis: | We explore dynamics of cosmological models with bounce solutions evolving on a spatially flat Friedmann-Lemaitre-Robertson-Walker background. We consider cosmological models that contain the Hilbert-Einstein curvature term, the induced gravity term with a negative coupled constant, and even polynomial potentials of the scalar field. Bounce solutions with non-monotonic Hubble parameters have been obtained and analyzed. The case when the scalar field has the conformal coupling and the Higgs-like potential with an opposite sign is studied in detail. In this model the evolution of the Hubble parameter of the bounce solution essentially depends on the sign of the cosmological constant. Comment: 26 pages, 10 figures, v3: Section 6 and references added, accepted for publication in JCAP |
| Databáze: | OpenAIRE |
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