Articles with "roll approximations" as a keyword



New slow-roll approximations for inflation in Einstein-Gauss-Bonnet gravity

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Published in 2024 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2024/09/050

Abstract: We propose new slow-roll approximations for inflationary models with the Gauss-Bonnet term. We find more accurate expressions of the standard slow-roll parameters as functions of the scalar field. To check the accuracy of approximations considered… read more here.

Keywords: inflationary models; roll approximations; roll; new slow ... See more keywords

More accurate slow-roll approximations for inflation in scalar-tensor theories

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Published in 2025 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2025/05/081

Abstract: We propose new versions of the slow-roll approximation for inflationary models with nonminimally coupled scalar fields. We derive more precise expressions for the standard slow-roll parameters as functions of the scalar field. To verify the… read more here.

Keywords: approximations inflation; roll approximations; roll; slow roll ... See more keywords