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arXiv · 2304.05903

Reheating constraints in Instant Preheating

Jaume de Haro
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Abstract

We use Instant Preheating as a mechanism to reheat the universe when its evolution is modeled by a non-oscillating background. Once we obtain the reheating temperature, we calculate the number of e-folds using two different methods, which allows us to establish a relationship between the reheating temperature and the spectral index of scalar perturbations. We explore this connection to constrain the spectral index for different Quintessential Inflation models.

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Jaume de Haro. 2023-04-12. Reheating constraints in Instant Preheating. https://doi.org/10.1103/physrevd.107.123511

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