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arXiv · 2109.14241

Potential reconstruction from general power spectrum in single-field inflation

Ki-Young Choi·Jinn-Ouk Gong·Su-beom Kang·Rathul Nath Raveendran
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Abstract

We suggest a new method to reconstruct, within canonical single-field inflation, the inflaton potential directly from the primordial power spectrum which may deviate significantly from near scale-invariance. Our approach relies on a more generalized slow-roll approximation than the standard one, and can probe the properties of the inflaton potential reliably. We give a few examples for reconstructing potential and discuss the validity of our method.

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Ki-Young Choi, Jinn-Ouk Gong, Su-beom Kang, Rathul Nath Raveendran. 2021-09-29. Potential reconstruction from general power spectrum in single-field inflation. https://doi.org/10.1088/1475-7516/2022/01/012

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