Gauss-Bonnet Inflation after Planck2018

Abstract

We study the primordial perturbations and reheating process in the models where the Gauss-Bonnet term is non-minimally coupled to the canonical and non-canonical (DBI and tachyon) scalar fields. We consider several potentials and Gauss-Bonnet coupling terms as power-law, dilaton-like, $\cosh$-type, E-model and T-model. To seek the observational viability of these models, we study the scalar perturbations numerically and compare the results with the Planck2018 TT, TE, EE+lowE+lensing+BK14+BAO joint data at $68\%$ CL and $95\%$ CL. We also study the tensor perturbations in confrontation with the Planck2018 TT, TE, EE+lowE+lensing+BK14+BAO+ LIGO$\&$Virgo2016 joint data at $68\%$ CL and $95\%$ CL. In this regard, we obtain some constraints on the Gauss-Bonnet coupling parameter $\beta$. Another important process in the early universe is the reheating phase after inflation which is necessary to reheat the universe for subsequent evolution. In this regard, we study the reheating process in these models and find some expressions for the e-folds number and temperature during that era. Considering that from Planck TT,TE,EE+lowEB+lensing data and BICEP2/Keck Array 2014, based on the $\Lambda$CDM$+r+\frac{d{n}_s}{d\ln k}$ model, we have $n_s=0.9658\pm 0.0038$ and $r<0.072$, we obtain some constraints on the e-folds number and temperature. From the values of the e-folds number and the effective equation of state and also the observationally viable value of the scalar spectral index, we explore the capability of the models in explaining the reheating phase.

arXiv comment52 pages, 16 figures, 16 tables

References in corpus (88)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Towards the Theory of Reheating After Inflation
• Reheating after Inflation
• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• Modified Gauss-Bonnet theory as gravitational alternative for dark energy
• Non-Gaussianity from Inflation: Theory and Observations
• Planck 2013 results. XXII. Constraints on inflation
• DBI in the Sky
• Tachyon Matter
• Accelerated expansion of the universe driven by tachyonic matter
• Reconstructing the Inflaton Potential --- an Overview
• Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
• Quantum Gravity in Everyday Life: General Relativity as an Effective Field Theory
• Gauss-Bonnet dark energy
• Universality Class in Conformal Inflation
• Superconformal Inflationary $\alpha$-Attractors
• The origin of the matter-antimatter asymmetry
• BICEP2 / Keck Array VI: Improved Constraints On Cosmology and Foregrounds When Adding 95 GHz Data From Keck Array
• Field Theory of Tachyon Matter
• Primordial Non-Gaussianities from Inflation Models
• Dynamics of Symmetry Breaking and Tachyonic Preheating
• Minimal Supergravity Models of Inflation
• Supersymmetric World-volume Action for Non-BPS D-branes
• Tachyons, Scalar Fields and Cosmology
• Instant Preheating
• Tachyonic Instability and Dynamics of Spontaneous Symmetry Breaking
• Power-Law Inflation from the Rolling Tachyon
• Reheating constraints to inflationary models
• What is needed of a tachyon if it is to be the dark energy?
• Reheating predictions in single field inflation
• Aspects of Tachyonic Inflation with Exponential Potential
• Preheating with Trilinear Interactions: Tachyonic Resonance
• Multifield Inflation after Planck: The Case for Nonminimal Couplings
• Equation-of-State Parameter for Reheating
• Multi-field Conformal Cosmological Attractors
• Large Field Inflation and Double $\alpha$-Attractors
• Inflationary non-Gaussianities in the most general second-order scalar-tensor theories
• Dark energy from modified F(R)-scalar-Gauss-Bonnet gravity
• Non-Thermal Production of Dangerous Relics in the Early Universe
• Slow-roll inflation with a Gauss-Bonnet correction
• Inflaton Decay and Heavy Particle Production with Negative Coupling
• Primordial non-Gaussianity from the DBI Galileons
• Power spectra from an inflaton coupled to the Gauss-Bonnet term
• Single-field $\alpha$-attractors
• Viable Inflation in Scalar-Gauss-Bonnet Gravity and Reconstruction from Observational Indices
• Constraints on α-attractor inflation and reheating
• Primordial non-Gaussianities in general modified gravitational models of inflation
• Inflation coupled to a Gauss-Bonnet term
• Dynamics of Inflation and Dark Energy from $F(R,\mathcal{G})$ Gravity
• Observational constraints on slow-roll inflation coupled to a Gauss-Bonnet term
• Perturbation, Non-Gaussianity and Reheating in a GB-$\alpha$-Attractor Model
• Inflation with Gauss-Bonnet coupling
• Accelerating Cosmologies in the Einstein-Gauss-Bonnet Theory with Dilaton
• Cosmological Attractor Models and Higher Curvature Supergravity
• Inflationary $\alpha$-attractors from $F(R)$ Gravity
• End of inflation, oscillons and matter-antimatter asymmetry
• On: Natural Inflation
• The double attractor behavior of induced inflation
• Reheating phase diagram for single-field slow-roll inflationary models
• Viable Inflationary Models in a Ghost-free Gauss-Bonnet Theory of Gravity
• Reconstruction of the Scalar Field Potential in Inflationary Models with a Gauss-Bonnet term
• Some Aspects of Tachyon Field Cosmology
• Tachyon Field in Intermediate Inflation
• Tachyonic Quintessential Inflation
• Higgs Inflation with a Gauss-Bonnet term in the Jordan Frame
• Tachyonic Resonance Preheating in Expanding Universe
• On Power Law Inflation in DBI Models
• $\alpha$-Attractor and Reheating in a Model with Non-Canonical Scalar Fields
• Warm tachyonic inflation in warped background
• Non-Perturbative Instabilities as a Solution of the Cosmological Moduli Problem
• DBI inflation with a non-minimally coupled Gauss-Bonnet term
• Sneutrino Inflation with $\alpha$-attractors
• Solutions of Higher Dimensional Gauss-Bonnet FRW Cosmology
• Primordial Spectra of slow-roll inflation at second-order with the Gauss-Bonnet correction
• Gauss-Bonnet Cosmology with Induced Gravity and Non-Minimally Coupled Scalar Field on the Brane
• Holographic Dark Energy from a Modified GBIG Scenario
• A Braneworld Dark Energy Model with Induced Gravity and the Gauss-Bonnet Effect
• Modified GBIG Scenario as an Alternative for Dark Energy
• Observational constraints on the generalized $\alpha$ attractor model
• De Sitter and Power-law Solutions in Non-local Gauss-Bonnet Gravity
• Tachyon field inflation in the light of BICEP2
• Observational Viability of an Inflation Model with E-Model non-Minimal Derivative Coupling
• Large Non-Gaussianity in Non-Minimally Coupled Derivative Inflation with Gauss-Bonnet Correction
• Mimetic DBI Inflation in Confrontation with Planck2018 data
• Observational Status of Tachyon Natural Inflation and Reheating

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• Viable Intermediate Inflation in the Mimetic DBI Model
• Sound Speed Resonance of Gravitational Waves in Gauss-Bonnet-coupled inflation
• Avoiding Big Rip Singularities in Phantom Scalar Field theory with Gauss-Bonnet term
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• Beyond $f(\varphi )\mathcal{G}$: Gauss--Bonnet inflation with $\mu (\varphi ,X)$