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On the geometrical interpretation of scale-invariant models of inflation

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arxiv 1606.08848 v1 pith:W2H4HGJQ submitted 2016-06-28 hep-ph astro-ph.COgr-qchep-th

On the geometrical interpretation of scale-invariant models of inflation

classification hep-ph astro-ph.COgr-qchep-th
keywords inflationgeometricalmodelsscale-invariantdetailsduringeinsteinfield-derivative
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the geometrical properties of scale-invariant two-field models of inflation. In particular, we show that when the field-derivative space in the Einstein frame is maximally symmetric during inflation, the inflationary predictions can be universal and independent of the details of the theory.

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Cited by 3 Pith papers

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    astro-ph.CO 2026-07 conditional novelty 5.0

    In a scale-invariant R² + unimodular-gravity model, the Goldstone boson of scale symmetry becomes thawing dark energy, with its equation of state fixed by the same coupling that sets the inflationary spectral tilt.

  3. Primordial black holes formation in inflationary $F(R)$ models with scalar fields

    gr-qc 2025-09 unverdicted novelty 5.0

    Authors add induced gravity and a polynomial potential to an F(R) model, transform to a two-field chiral cosmology, and find parameter choices that match ACT inflation data while yielding PBH masses compatible with da...