22-26 October 2018
Hotel Intourist Kolomenskoye 4*
Europe/Moscow timezone

De Sitter and Power-law Solutions in Non-local Gauss-Bonnet Gravity

24 Oct 2018, 09:50
Moskvorechye 1 hall (Hotel Intourist Kolomenskoye 4*)

Moskvorechye 1 hall

Hotel Intourist Kolomenskoye 4*

Kashirskoye shosse, 39B, Moscow, Russia, 115409
Plenary/section talk Gravitation and Cosmology


Ekaterina Pozdeeva


The cosmological dynamics of a non-locally corrected gravity theory, involving a power of the inverse d'Alembertian, is investigated. Casting the dynamical equations into local form, the fixed points of the models are derived, as well as corresponding de Sitter and power-law solutions. Necessary and sufficient conditions on the model parameters for the existence of de Sitter solutions are obtained. The possible existence of power-law solutions is investigated, and it is proven that models with de Sitter solutions have no power-law solutions. A model is found, which allows to describe the matter-dominated phase of the Universe evolution.

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