Resonant amplification of curvature perturbations in inflation model with periodical derivative coupling
In this paper, we introduce a weak, transient and periodical derivative coupling between the inflaton field and gravity, and find that the square of the sound speed of the curvature perturbations becomes a periodic function, which results in that the equation of the curvature perturbations can be tr...
| Hlavní autoři: | , , |
|---|---|
| Médium: | Článek |
| Jazyk: | English |
| Vydáno: |
Elsevier
2024-02-01
|
| Edice: | Physics Letters B |
| On-line přístup: | http://www.sciencedirect.com/science/article/pii/S0370269324000169 |