Adiabatic Gravitational Perturbation During Reheating
W.B. Lin, X.H.Meng, and X.M. Zhang
TL;DR
This paper investigates whether gravitational perturbations can be amplified during reheating in single-field inflation models, concluding that no additional growth occurs beyond standard predictions.
Contribution
It provides an analysis showing that super-horizon gravitational modes do not experience extra amplification during reheating in these models.
Findings
No extra growth of super-horizon modes during reheating
Gravitational perturbations remain consistent with standard predictions
Reheating does not significantly alter gravitational perturbation amplitudes
Abstract
We study the possibilities of parametric amplification of the gravitational perturbation during reheating in single-field inflation models. Our result shows that there is no additional growth of the super-horizon modes beyond the usual predictions.
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