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arXiv · 1811.06021

A Spinodal Solution to Swampland Inflationary Constraints

R. Holman·B. Richard
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Abstract

We show how the inclusion of non-perturbative, {\em dynamical} quantum effects on the evolution of the inflaton can allow for an inflationary phase that is both consistent with cosmological constraints {\em and} avoids the problems associated with the so-called swampland conditions. In particular, for concave potentials such as those preferred by the Planck data, spinodal instabilities associated with tachyonic masses for long wavelength modes induce a second round of inflation, which in essence decouples the tree-level potential from the inflationary phase. We illustrate these points using natural inflation as an example.

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BibTeXRIS

R. Holman, B. Richard. 2019-05-14. A Spinodal Solution to Swampland Inflationary Constraints. https://doi.org/10.1103/physrevd.99.103508

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