Gauge Field Preheating at the End of Inflation
J. Tate Deskins, John T. Giblin Jr, Robert R. Caldwell
TL;DR
This paper investigates how a U(1) gauge field coupled to the inflaton can efficiently preheat the universe through parametric amplification, supported by high-resolution 3D simulations.
Contribution
It introduces a novel preheating mechanism involving gauge fields coupled conformally to the inflaton, demonstrated through detailed simulations.
Findings
Efficient preheating to a radiation-dominated universe
Validation of parametric amplification of gauge fields
High-resolution simulation results support the mechanism
Abstract
Here we consider the possibility of preheating the Universe via the parametric amplification of a massless, U(1) abelian gauge field. We assume that the gauge field is coupled to the inflaton via a conformal factor with one free parameter. We present the results of high-resolution three-dimensional simulations of this model and show this mechanism efficiently preheats the Universe to a radiation-dominated final state.
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