Effect of Dissipation on Warm Chromo-Natural Inflation
arXiv:2203.12213 · doi:10.1142/S0217751X23501129
Abstract
We examined the chromo-natural inflation in the context of warm inflation with variable dissipation coefficient. The dynamical equations of this model are obtained. We studied the cosmological perturbation theory in this model. The sources of density fluctuations in this model are mainly the thermal fluctuations of the inflaton field like general warm inflationary model. Finally, cosmological observables, namely, the spectral index and tensor to scalar ratio are calculated. It is found that the cosmological observables are consistent with observational data and the tensor to scalar ratio is smaller than that in the chromo-natural inflation.
References in corpus (28)
- Hybrid Inflation
- A Joint Analysis of BICEP2/Keck Array and Planck Data
- BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
- Warm Inflation
- Natural Inflation: Particle Physics Models, Power Law Spectra for Large Scale Structure, and Constraints from COBE
- Primordial non-gaussianities in single field inflation
- The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars
- Warm Inflation and its Microphysical Basis
- On the Possibility of Large Axion Decay Constants
- Scalar perturbation spectra from warm inflation
- Chromo-Natural Inflation: Natural inflation on a steep potential with classical non-Abelian gauge fields
- Warm Inflation in the Adiabatic Regime- a Model, an Existence Proof for Inflationary Dynamics in Quantum Field Theory
- Strong Dissipative Behavior in Quantum Field Theory
- Interpolating the Stage of Exponential Expansion in the Early Universe: a possible alternative with no reheating
- Perturbation Spectra in the Warm Inflationary Scenario
- Perturbations in Chromo-Natural Inflation
- Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound
- On the consistency of warm inflation
- Warm Inflation with a General Form of the Dissipative Coefficient
- On: Natural Inflation
- Natural Inflation: Consistency with Cosmic Microwave Background Observations of Planck and BICEP2
- Natural Inflation: status after WMAP 3-year data
- Low-Energy Effective Field Theory for Chromo-Natural Inflation
- Determining the regimes of cold and warm inflation in the susy hybrid model
- Warm tachyonic inflation in warped background
- Consistency of warm k-inflation
- Perturbation spectra in the warm -inflation
- A note on Low Energy Effective Theory of Chromo Natural Inflation in the light of BICEP2 results