Slow-roll trajectories in Chromo-Natural and Gauge-flation Models, an exhaustive analysis

Abstract

We present an exhaustive analysis on the classical solutions of the Chromo-natural model. We showed that starting from an arbitrary axion field value ${\chi }_0\in (0,f\pi )$, it is possible to have successful slow-roll inflation and working out the analytical solution of the number of e-folding, we determine the allowed region of the parameters corresponding to each ${\chi }_0$ value. Having the allowed parameter region, then we study the behavior of the solutions respect to the initial value of the axion field.

7 pages, 7 figures

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• Chiral Gravity Waves and Leptogenesis in Inflationary Models with non-Abelian Gauge Fields
• Chromo-Natural Model in Anisotropic Background
• Higgsed Gauge-flation
• Implications of Gravitational-wave Production from Dark Photon Resonance to Pulsar-timing Observations and Effective Number of Relativistic Species
• Dynamical analysis of cosmological models with non-Abelian gauge vector fields
• Mixed Non-Gaussianity from Axion-Gauge Field Dynamics
• Leptogenesis in Inflationary models with Non-Abelian Gauge Fields
• Gravitational waves from spectator Gauge-flation
• The Inflated Chern-Simons Number in Spectator Chromo-Natural Inflation
• Magnetogenesis from axion-SU(2) inflation