R^2-corrections to Chaotic Inflation

Abstract

Scalar density cosmological perturbations, spectral indices and reheating in a chaotic inflationary universe model, in which a higher derivative term is added, are investigated. This term is supposed to play an important role in the early evolution of the Universe, specifically at times closer to the Planck era.

14 pages, accepted for publication in MPLA

References in corpus (4)

• The Cold Dark Matter Density Perturbation
• Cosmological perturbations from multi-field inflation in generalized Einstein theories
• Preheating with non-minimally coupled scalar fields in higher-curvature inflation models
• On the degree of scale invariance of inflationary perturbations

Cited by in corpus (7)

• Constraining f(R) Gravity as a Scalar Tensor Theory
• Scalaron from $R^2$-gravity as a Heavy Field
• Palatini inflation in models with an $R^2$ term
• Rescuing Quartic and Natural Inflation in the Palatini Formalism
• Primordial perturbations generated by Higgs field and $R^2$ operator
• $R^2$ corrections to the cosmological dynamics of inflation in the Palatini formulation
• Classical and quantum cosmology of $K$-essentially modified $R^2$ and pure $R^p$ gravity