Anisotropic inflation in non-minimal kinetic coupling model
arXiv:2208.10757 · doi:10.1088/1475-7516/2022/11/052
Abstract
We study anisotropic inflation in non-minimal derivative coupling model where the scalar field non-minimally coupled to the gauge fields and derivative of the scalar field non-minimally coupled to the Einstein tensor. Within the framework we find power-law anisotropic solutions in this model when both the inflaton potential and the gauge kinetic function are power-law type in the high friction regime. We show the ratio of anisotropy to the expansion rate is nearly constant, small and proportional to the slow-roll parameters of the theory. As a demonstration, we consider numerically calculation of the model to show that the behavior of anisotropy by changing the parameters of the model for quadratic inflationary potential. There is anisotropic attractor solution for a wide range of values of the model parameters. We show both numerically and analytically that there are two phases of inflation, similar to those an anisotropic inflation in minimal coupling model, isotropic and anisotropic phase. We can change the number of e-folds corresponding to each phase of slow roll inflation by changing the gauge coupling constant or non-minimal derivative coupling constant. There are the best agreement with the numerically solutions and analytically solutions in this investigation.
arXiv comment25 pages, 13 figures
References in corpus (40)
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Non-Gaussian features of primordial fluctuations in single field inflationary models
- Planck 2018 results. X. Constraints on inflation
- Particle Physics Models of Inflation and the Cosmological Density Perturbation
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
- Reconstructing the Inflaton Potential --- an Overview
- General second order scalar-tensor theory, self tuning, and the Fab Four
- New Model of Inflation with Non-minimal Derivative Coupling of Standard Model Higgs Boson to Gravity
- Inflationary Universe with Anisotropic Hair
- Gauge Fields and Inflation
- Imprints of a Primordial Preferred Direction on the Microwave Background
- Vector Inflation
- Estimators for CMB Statistical Anisotropy
- Statistical Anisotropy from Anisotropic Inflation
- Anisotropic Power-law Inflation
- Primordial statistical anisotropy generated at the end of inflation
- Bayesian analysis of sparse anisotropic universe models and application to the 5-yr WMAP data
- Primordial Power Spectra from Anisotropic Inflation
- Observational tests of inflation with a field derivative coupling to gravity
- Forever alone? Testing single eccentric planetary systems for multiple companions
- Bayesian analysis of an anisotropic universe model: systematics and polarization
- Inflation without Slow Roll
- UV-protected (Natural) Inflation: Primordial Fluctuations and non-Gaussian Features
- Cosmological Perturbations in the New Higgs Inflation
- Anisotropic Inflation from Charged Scalar Fields
- Anisotropic Non-Gaussianity from a Two-Form Field
- Anisotropic power-law k-inflation
- Introducing the Slotheon: a slow Galileon scalar field in curved space-time
- Gauge-flation and Cosmic No-Hair Conjecture
- Reheating in nonminimal derivative coupling model
- Inflation during oscillations of the inflaton
- Oscillatory inflation in non-minimal derivative coupling model
- Anisotropic inflation in Gauss-Bonnet gravity
- Anisotropic inflation in Brans-Dicke gravity
- Quantum tomography for collider physics: Illustrations with lepton pair production
- Reheating temperature in non-minimal derivative coupling model
- Anisotropic Inflation with Derivative Couplings
- Anisotropic inflation with a non-minimally coupled electromagnetic field to gravity
- Anisotropy in Inflation with Non-minimal Coupling
- Implications of the primordial anisotropy for a scalar field with non-minimal kinetic coupling