Reconstruction of GR cosmological solutions in modified gravity theories
| Autor: | Fomin, Igor V., Chervon, Sergey V. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 100, 023511 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.100.023511 |
| Popis: | We study the special class of the exact solutions in cosmological models based on the Generalized Scalar-Tensor Gravity with non-minimal coupling of a scalar field to the Ricci scalar and to the Gauss-Bonnet scalar in 4D Friedmann universe corresponding to similar ones in GR. The parameters of cosmological perturbations in such models correspond to the case of Einstein gravity with a high precision. As the example of proposed approach, we obtain the exact solutions for the power-law and exponential power-law inflation. Comment: 4 figures |
| Databáze: | arXiv |
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