https://doi.org/10.1140/epjc/s10052-024-13611-x
Regular Article
Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity
Department of Physics, Middle East Technical University, 06800, Ankara, Turkey
Received:
24
September
2024
Accepted:
10
November
2024
Published online:
10
December
2024
A particular extension of Einstein’s General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the vacuum. We study the inflation phase of the universe in this minimal quartic extension of Einstein’s gravity in the presence of trace anomaly terms coming from the Standard Model fields and the fields of the Minimal Supersymmetric Standard Model. We show that the theory allows a quasi-de Sitter phase with sufficient e-foldings.
© The Author(s) 2024
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