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arXiv · 1411.2972

Consistency relation for $R^p$ inflation

Hayato Motohashi
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Abstract

We consider $R^p$ inflation with $p \approx 2$, allowing small deviation from $R^2$ inflation. Using the inflaton potential in the Einstein frame, we construct a consistency relation between the scalar spectral index, the tensor-to-scalar ratio, as well as the running of the scalar spectral index, which will be useful to constrain a deviation from $R^2$ inflation in future observations.

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Hayato Motohashi. 2015-04-17. Consistency relation for $R^p$ inflation. https://doi.org/10.1103/physrevd.91.064016

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