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arXiv · 1504.02192

Generalized Slow-roll Inflation in Non-minimally Coupled Theories

A. Savas Arapoglu
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Abstract

The slow-roll field equations for the case of non-minimally coupled scalar fields are obtained in two ways: first using the direct generalization of slow-roll conditions in the minimal coupling case to non-minimal one; and, second, conformal transforming the slow-roll field equations in the Einstein frame to the Jordan frame and then applying the generalized slow-roll conditions. We compare the difference of two methods in calculation of the spectral index, $n_s$, for a model example. The second method seems to be more precise.

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A. Savas Arapoglu. 2015-04-09. Generalized Slow-roll Inflation in Non-minimally Coupled Theories. https://arxiv.org/abs/1504.02192

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