Initial Conditions for Vector Inflation

Abstract

Recently, a model of inflation using non-minimally coupled massive vector fields has been proposed. For a particular choice of non-minimal coupling parameter and for a flat FRW model, the model is reduced to the model of chaotic inflation with massive scalar field. We study the effect of non-zero curvature of the universe on the onset of vector inflation. We find that in a curved universe the dynamics of vector inflation can be different from chaotic inflation, and the fraction of the initial conditions leading to inflationary solutions is reduced compared with the chaotic inflation case.

12 pages, 5 figures, version to be published in JCAP

References in corpus (5)

• Vector Inflation
• The Measure Problem in Cosmology
• On Minimally-Parametric Primordial Power Spectrum Reconstruction and the Evidence for a Red Tilt
• Non-minimally coupled vector curvaton
• Comment on Inflation and Alternative Cosmology

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• Simple Types of Anisotropic Inflation
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• Parity Violating Statistical Anisotropy
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• Bouncing Universe and Reconstructing Vector Field
• Gravitational waves from p-form inflation
• Scalars, Vectors and Tensors from Metric-Affine Gravity
• On cosmic inflation in vector field theories
• Interacting $F(R,T)$ gravity with modified Chaplygin gas
• Logarithmic entropy corrected holographic dark energy with $F(R,T)$ gravity
• Fine-tuning criteria for inflation and the search for primordial gravitational waves
• Einstein-Proca theory from the Einstein-Cartan formulation
• Dynamics of inflation with mutually orthogonal vector fields in a closed universe
• Slow-roll inflation from massive vector fields non-minimally coupled to gravity
• Power-law Bianchi type I inflation with multiple vector fields
• A note on generalized electrodynamics