Effect of the Generalized Uncertainty Principle on Post-Inflation Preheating

TL;DR

This paper explores how the Generalized Uncertainty Principle influences post-inflation preheating, affecting parametric resonance and particle production, with potential implications for cosmological models.

Contribution

It is the first study to analyze the impact of the Generalized Uncertainty Principle on post-inflation preheating in cosmology.

Findings

GUP can enhance or suppress parametric resonance.

Particle production rates are affected by GUP modifications.

Implications for early universe cosmology are discussed.

Abstract

We examine effects of the Generalized Uncertainty Principle, predicted by various theories of quantum gravity to replace the Heisenberg's uncertainty principle near the Planck scale, on post inflation preheating in cosmology, and show that it can predict either an increase or a decrease in parametric resonance and a corresponding change in particle production. Possible implications are considered.