Primordial perturbations generated by Higgs field and $R^2$ operator

Abstract

If the very early Universe is dominated by the non-minimally coupled Higgs field and Starobinsky's curvature-squared term together, the potential diagram would mimic the landscape of a valley, serving as a cosmological attractor. The inflationary dynamics along this valley is studied, model parameters are constrained against observational data, and the isocurvature perturbation is evaluated.

14 pages, 5 figures, $\rho$-field redefined, Sect V and appendices enlarged

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Cited by in corpus (48)

• Palatini inflation in models with an $R^2$ term
• Inflation with $R^2$ term in the Palatini formalism
• Inflation in the Mixed Higgs-$R^2$ Model
• Scalaron the healer: removing the strong-coupling in the Higgs- and Higgs-dilaton inflations
• Primordial Black Holes in Higgs-$R^2$ Inflation as a Whole Dark Matter
• Minimal Higgs inflation with an $R^2$ term in Palatini gravity
• Rescuing Quartic and Natural Inflation in the Palatini Formalism
• On the violent preheating in the mixed Higgs-$R^2$ inflationary model
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• Towards distinguishing variants of non-minimal inflation
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• Two-loop corrections to Starobinsky-Higgs inflation
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• Enhancement of primordial curvature perturbations in $R^3$-corrected Starobinsky-Higgs inflation
• Higgs inflation and teleparallel gravity
• Constant-roll in the Palatini-$R^2$ models
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• Initial conditions for plateau inflation: a case study
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• Progress in Higgs inflation
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• Perturbative Reheating in the Mixed Higgs-$R^2$ Model
• Natural-Scalaron Inflation
• Integrable modified gravity cosmological models with an additional scalar field
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• Initial conditions for the scalaron dark matter
• Testing scale-invariant inflation against cosmological data
• Higgs field in cosmology
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• Primordial black holes formation in inflationary $F(R)$ models with scalar fields
• The effective Higgs potential and vacuum decay in Starobinsky inflation