Anisotropic power-law inflation

2010/10/31 by Sugumi Kanno, Jiro Soda, Masa-aki Watanabe · 2 citations
Physics and Astronomy · #Anisotropy #Attractor #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Exponential function #Function (biology) #Galaxies: Formation, Evolution, Phenomena #Gauge (firearms) #Inflation (cosmology) #Inflaton #Mathematical analysis #Mathematical physics #Physics #Power law #Quantum electrodynamics #Quantum mechanics #Supergravity #Supersymmetry #Theoretical physics #astro-ph.CO #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1088/1475-7516/2010/12/024

published as JCAP 1012:024,2010 · 14 pages, 1 figure. References added, minor corrections included

arxiv created 2010/11/29 · openalex publication_date 2010/12/23 · arxiv updated 2011/03/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study an inflationary scenario in supergravity model with a gauge kinetic function. We find exact anisotropic power-law inflationary solutions when both the potential function for an inflaton and the gauge kinetic function are exponential type. The dynamical system analysis tells us that the anisotropic power-law inflation is an attractor for a large parameter region.

Citations

• The development of irregularities in a single bubble inflationary universe
• Parti sans laisser d'adresse
• Anisotropic inflation from vector impurity
• Vector theories in cosmology
• Cosmological magnetic fields from inflation and backreaction
• Simple types of anisotropic inflation
• Vector curvaton without instabilities
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
• Linear perturbations in vector inflation and stability issues
• Cosmological baryon-number domain structure and the first order phase transition of a vacuum
• Primordial statistical anisotropy generated at the end of inflation
• Dynamics of the universe and spontaneous symmetry breaking
• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters
• Cosmology of a scalar field coupled to matter and an isotropy-violating Maxwell field
• A unified approach to scaling solutions in a general cosmological background
• Spontaneous creation of almost scale-free density perturbations in an inflationary universe
• Observational signatures and non-Gaussianities of general single-field inflation
• Statistical anisotropy of the curvature perturbation from vector field perturbations
• General analytic formulas for attractor solutions of scalar-field dark energy models and their multifield generalizations
• Fluctuations in the New Inflationary Universe
• k-Inflation

Cited by

• Statistically-anisotropic tensor bispectrum from inflation
• Spectator electric fields, de Sitter spacetime, and the Schwinger effect