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- W3100288076 abstract "In this paper, we investigate chaotic inflation from scalar field subjected to potential in the framework of $f(R^2, P, Q)$-gravity, where we add a correction to Einstein's gravity based on a function of the square of the Ricci scalar $R^2$, the contraction of the Ricci tensor $P$, and the contraction of the Riemann tensor $Q$. The Gauss-Bonnet case is also discussed. We give the general formalism of inflation, deriving the slow-roll parameters, the $e$-folds number, and the spectral indexes. Several explicit examples are furnished, namely we will consider the cases of massive scalar field and scalar field with quartic potential and some power-law function of the curvature invariants under investigation in the gravitational action of the theory. Viable inflation according with observations is analyzed." @default.
- W3100288076 created "2020-11-23" @default.
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- W3100288076 date "2015-03-01" @default.
- W3100288076 modified "2023-09-27" @default.
- W3100288076 title "Chaotic inflation in higher derivative gravity theories" @default.
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- W3100288076 doi "https://doi.org/10.1140/epjc/s10052-015-3332-x" @default.
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