Onset of inflation in inhomogeneous cosmology

Abstract

We study how the initial inhomogeneities of the universe affect the onset of inflation in the closed universe. We consider the model of a chaotic inflation which is driven by a massive scalar field. In order to construct an inhomogeneous universe model, we use the long wavelength approximation ( the gradient expansion method ). We show the condition of the inhomogeneities for the universe to enter the inflationary phase.

22 pages including 12 eps figures, RevTex

References in corpus (6)

• Solving the Hamilton-Jacobi Equation for General Relativity
• Long wavelength iteration of Einstein's equations near a spacetime singularity
• Conditions for inflation in an initially inhomogeneous universe
• Application of Gradient Expansion to Inflationary Universe
• Inhomogeneity of Spatial Curvature for Inflation
• Generality of Inflation in a Planar Universe

Cited by in corpus (14)

• Theory of cosmological perturbations in an anisotropic universe
• Inhomogeneous Pre-Big Bang String Cosmology
• Inflationary Initial Conditions Consistent with Causality
• Effective inhomogeneous inflation: curvature inhomogeneities of the Einstein vacuum
• Isotropic singularity in inhomogeneous brane cosmological models
• \bf $\delta M$ Formalism: A New Approach to Cosmological Perturbation Theory in Anisotropic Inflation
• Tunneling and propagation of vacuum bubbles on dynamical backgrounds
• Vacuum Bubble in an Inhomogeneous Cosmology
• Perturbation Growth in Anisotropic Cosmologies
• Introduction to the number of $e$-folds in slow-roll inflation
• Inhomogeneous scalar field solutions and inflation
• A solution to the initial condition problems of inflation : NATON
• Generality of Topological Inflation
• Hamilton-Jacobi approach to pre-big bang cosmology and the problem of initial conditions