Inflation with explicit parametric connection between General Relativity and Scalar-Tensor gravity

Abstract

In this paper we consider the cosmological inflation within scalar-tensor gravity and compare it with standard inflation based on general relativity. The difference is determined by the value of the parameter $\Delta$. This approach is associated with using the special ansatz which links a function that defines a type of gravity with a scale factor of the universe.

arXiv comment9 pages. arXiv admin note: text overlap with arXiv:1711.06870

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• Generalized scalar-tensor theory of gravity reconstruction from physical potentials of a scalar field
• Non-minimal coupling influence on the deviation from de Sitter cosmological expansion
• New symmetry in higher curvature spacetimes