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A model of power-law inflation based on modified theories of gravity

Authors: Spiridonov L.E.
Published in issue: #9(74)/2022
DOI: 10.18698/2541-8009-2022-9-823


Category: Physics | Chapter: Plasma physics

Keywords: power-law inflation, Einstein gravity, cosmological models, scalar field, general theory of relativity, modified theories of gravity, cosmological perturbations, relic gravitational waves
Published: 07.10.2022

The model of power-law inflation based on Einstein's gravity and modified theories of gravitation is considered. It is shown that the modification of the gravity theory leads to the possibility of conformity of the model predictions with the modern observational constraints associated with the measurement of the anisotropy and polarization of the relic radiation. The characteristics of relic gravitational waves predicted in the considered model of cosmological inflation are determined and these characteristics are compared with the limiting sensitivity of modern detectors. It is noted that the proposed method of constructing models of cosmological inflation verified by observational data can be applied to arbitrary models, different from the power-law inflation considered in the present paper.


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