Non-minimally assisted chaotic inflation

Abstract

Conventional wisdom says that a chaotic inflation model with a power-law potential is ruled out by the recent Planck-BICEP/Keck results. We find, however, that the model can be assisted by a non-minimally coupled scalar field and still provides a successful inflation. Considering a power-law chaotic inflation model of the type $V\sim {\phi }^n$ with $n=\{2,4/3,1,2/3,1/3\}$, we show that $n=1/3$ ($n=\{2/3,1/3\}$) may be revived with the help of the quadratic (quartic) non-minimal coupling of the assistant field to gravity.

arXiv commentv1: 11 pages; v2: 11 pages, references updated, typos corrected, accepted for publication in JCAP

References in corpus (56)

• Planck 2018 results. X. Constraints on inflation
• The Standard Model Higgs boson as the inflaton
• A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Monodromy in the CMB: Gravity Waves and String Inflation
• Gravity Waves and Linear Inflation from Axion Monodromy
• A general proof of the conservation of the curvature perturbation
• The inflationary prediction for primordial non-gaussianity
• Assisted inflation
• Super-Horizon Scale Dynamics of Multi-Scalar Inflation
• Primordial non-gaussianities from multiple-field inflation
• Scalaron from $R^2$-gravity as a Heavy Field
• Non-Gaussianities in two-field inflation
• Superconformal Symmetry, NMSSM, and Inflation
• Higgs inflation still alive
• The Powers of Monodromy
• Induced gravity inflation in the standard model of particle physics
• Complete constraints on a nonminimally coupled chaotic inflationary scenario from the cosmic microwave background
• Jordan Frame Supergravity and Inflation in NMSSM
• Generalized Assisted Inflation
• Higgs inflation from Standard Model criticality
• Higgs Scalaron Mixed Inflation
• Classical and Quantum Initial Conditions for Higgs Inflation
• Inflation with Non-minimal Gravitational Couplings and Supergravity
• Dynamics of Assisted Inflation
• The Dynamics of Multi-Scalar Field Cosmological Models and Assisted Inflation
• Inflation in the Mixed Higgs-$R^2$ Model
• Scalaron the healer: removing the strong-coupling in the Higgs- and Higgs-dilaton inflations
• Higgs Starobinsky Inflation
• Spectral Running and Non-Gaussianity from Slow-Roll Inflation in Generalised Two--Field Models
• On the violent preheating in the mixed Higgs-$R^2$ inflationary model
• Inflation by non-minimal coupling
• Primordial perturbations generated by Higgs field and $R^2$ operator
• Beyond the Starobinsky model for inflation
• Chaotic Inflation with a Fractional Power-Law Potential in Strongly Coupled Gauge Theories
• A simple $F(\mathcal{R},\varphi )$ deformation of Starobinsky inflationary model
• Higgs inflation in minimal supersymmetric SU(5) GUT
• Reheating in Models with Non-minimal Coupling in metric and Palatini formalisms
• Higgs inflation in metric and Palatini formalisms: Required suppression of higher dimensional operators
• Dynamical Emergence of Scalaron in Higgs Inflation
• Two-loop corrections to Starobinsky-Higgs inflation
• Dynamics and perturbations in assisted chaotic inflation
• GUT Scalar Potentials for Higgs Inflation
• Monodromy inflation at strong coupling: $4\pi$ in the sky
• Progress in Higgs inflation
• Supersymmetric standard model inflation in the Planck era
• Multifield dynamics of supersymmetric Higgs inflation in SU(5) GUT
• TeV scale seesaw from supersymmetric Higgs-lepton inflation and BICEP2
• Relaxing inflation models with non-minimal coupling: A general study
• Testing supersymmetric Higgs inflation with non-Gaussianity
• Higgs-lepton inflation in the supersymmetric minimal seesaw model
• Perturbations of Single-field Inflation in Modified Gravity Theory
• Revisiting the Minimal Chaotic Inflation Model
• Two-field inflation with non-minimal coupling
• Double inflation via non-minimally coupled spectator
• Chaotic initial conditions for nonminimally coupled inflation via a conformal factor with a zero

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• Slow-Roll Inflation in the Jordan Frame