Cosmological perturbations for an inflaton field coupled to radiation
arXiv:1410.1187 · doi:10.1088/1475-7516/2015/01/005
Abstract
Within the framework of the interacting fluid formalism, we provide the numerical solution to the Boltzmann equation describing the evolution of an inflaton field coupled to radiation. We study the behavior of the system during the slow-roll regime, in the case in which an additional stochastic source term is included in the set of equations, and we recover the expression for the cosmological perturbations previously obtained in the Warm inflation scenarios.
23 pages, 6 figures
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- Hamilton-Jacobi formalism to warm inflationary scenario
- The QCD Axion and Gravitational Waves in light of NANOGrav results
- Warm-assisted natural inflation
- Opening the reheating box in multifield inflation
- Is warm inflation quasi-stable?