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arXiv · 1704.08559

Reconstruction of constant slow-roll inflation

Qing Gao
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Abstract

By using the relations between the slow-roll parameters and the power spectrum for the single field slow-roll inflation, we derive the scalar spectral tilt $n_s$ and the tensor to scalar ratio $r$ for the constant slow-roll inflation and obtain the constraint on the slow-roll parameter $\eta$ from the Planck 2015 results. The inflationary potential for the constant slow-roll inflation is then reconstructed in the framework of both general relativity and scalar-tensor theory of gravity, and compared with the recently reconstructed E model potential. In the strong coupling limit, we show that the $\eta$ attractor is reached.

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Qing Gao. 2017-04-27. Reconstruction of constant slow-roll inflation. https://doi.org/10.1007/s11433-017-9065-4

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