TL;DR
This paper investigates the feasibility of parametric resonance during preheating after multi-field inflation, highlighting how dephasing suppresses resonance effects, unlike in single-field models.
Contribution
It introduces an intuitive argument showing dephasing suppresses parametric resonance in multi-field inflation, challenging the use of effective single-field models for preheating studies.
Findings
Dephasing suppresses parametric resonance in multi-field inflation.
Single-field models are inadequate for studying preheating in multi-field scenarios.
Resonance effects are absent in generic multi-field models due to dephasing.
Abstract
In this note I study preheating after multi-field inflation to assess the feasibility of parametric resonance. An intuitive argument for the suppression of resonances due to dephasing of fields in generic multi-field models is presented. This effect is absent in effective single field models, rendering them inappropriate for the study of preheating.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.