Thermal effects on warm chromoinflation
arXiv:2410.22624 · doi:10.1088/1475-7516/2025/01/048
Abstract
We explore a model of a pseudo-Nambu-Goldstone boson inflaton field coupled to a non-Abelian gauge field. This model naturally leads to a warm inflation scenario, where the inflationary dynamics is dominated by thermal dissipation. In this work, we consider a scenario where the inflaton, an axion-like field, is coupled to the gauge field, similar to chromoinflation models. Both the inflaton and the gauge field with a non-vanishing vacuum expectation value are coupled to a thermal radiation bath. We demonstrate that the presence of the thermal bath during warm chromoinflation induces a thermal plasma mass for the background gauge field. This thermal mass can significantly disrupt the dynamics of the background gauge field, thereby driving it to its trivial null solution.
17 pages, 5 figures. Replaced with the version matching the one published in the JCAP
References in corpus (31)
- Gauge Fields and Inflation
- A Clockwork Axion
- Chromo-Natural Inflation: Natural inflation on a steep potential with classical non-Abelian gauge fields
- Realizing the relaxion from multiple axions and its UV completion with high scale supersymmetry
- Warm Little Inflaton
- The Sphaleron Rate in SU(N) Gauge Theory
- Perturbations in Chromo-Natural Inflation
- Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound
- Warm inflation as a way out of the swampland
- Axion Inflation with an SU(2) Gauge Field: Detectable Chiral Gravity Waves
- Warm Inflation in the light of Swampland Criteria
- Minimal Warm Inflation
- A numerical study of pseudoscalar inflation with an axion-gauge field coupling
- On: Natural Inflation
- Gauge-flation confronted with Planck
- Clockwork Axions in Cosmology: Is Chromonatural Inflation Chrononatural?
- Towards a reliable effective field theory of inflation
- Warm brane inflation with an exponential potential: A consistent realization away from the swampland
- Swampland, Axions and Minimal Warm Inflation
- Trans-Planckian censorship and other swampland bothers addressed in warm inflation
- Runaway potentials in warm inflation satisfying the swampland conjectures
- Production and Backreaction of Spin-2 Particles of Gauge Field during Inflation
- Minimal warm inflation with complete medium response
- Observational Constraints on Warm Natural Inflation
- Warm (Pseudo)Scalar Inflation
- Warming up cold inflation
- Running and running of the running of the scalar spectral index in warm inflation
- On chromonatural inflation in string theory
- Dirac-Born-Infeld warm inflation realization in the strong dissipation regime
- SU()-natural inflation
- Effect of Dissipation on Warm Chromo-Natural Inflation