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arXiv · 2111.00825

Reheating in Models with Non-minimal Coupling in metric and Palatini formalisms

Dhong Yeon Cheong·Sung Mook Lee·Seong Chan Park
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Abstract

We study reheating of inflationary models with general non-minimal coupling $K(\phi)R$ with $K(\phi)\sim \sqrt{V(\phi)}$ where $R$ is the Ricci scalar and $V$ is the inflaton potential. In particular, when we take the monomial potential $K(\phi) \propto \phi^m$ with $m \in \mathbb{Z}_+$, we provide general analytic expressions for cosmological observables. We consider a wide range of non-minimal coupling $ \xi \in [0, \infty) $ in metric and Palatini formalisms and derive the predictions for cosmological observables and the reheating temperature taking a general equation of state parameter $ w_\text{reh} $.

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Dhong Yeon Cheong, Sung Mook Lee, Seong Chan Park. 2021-11-01. Reheating in Models with Non-minimal Coupling in metric and Palatini formalisms. https://doi.org/10.1088/1475-7516%2F2022%2F02%2F029

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