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Hillclimbing inflation in metric and Palatini formulations

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arxiv 1812.11077 v2 pith:ST7KQJKA submitted 2018-12-24 gr-qc hep-ph

Hillclimbing inflation in metric and Palatini formulations

classification gr-qc hep-ph
keywords formulationscosmicinflationinflatonmetricpalatinipotentialallowed
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A new setup of cosmic inflation with a periodic inflaton potential and conformal factor is discussed in the metric and Palatini formulations of gravity. As a concrete example, we focus on a natural-inflation-like inflaton potential, and show that the inflationary predictions fall into the allowed region of cosmic microwave background observations in both formulations.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Constant-roll $\beta$-exponential inflation: Palatini formalism

    gr-qc 2026-01 reject novelty 4.0

    A parameter scan of constant-roll β-exponential inflation in Palatini R² gravity claims agreement with ACT/Planck contours, but the derivation is undermined by algebraic sign errors and an absent non-Gaussianity calculation.