Universality classes for models of inflation

C. Rosset; E. Kiritsis; J. Mabillard; M. Pieroni; P. Binetruy

Universality classes for models of inflation

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arxiv 1407.0820 v2 pith:EB5UE7ZP submitted 2014-07-03 astro-ph.CO gr-qchep-phhep-th

P. Binetruy , E. Kiritsis , J. Mabillard , M. Pieroni , C. Rosset This is my paper · ORCID

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keywords inflationmodelscertaincontextevolutiongroupnumberrenormalisation

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We show that the cosmological evolution of a scalar field in a potential can be obtained from a renormalisation group equation. The slow roll regime of inflation models is understood in this context as the slow evolution close to a fixed point, described by the methods of renormalisation group. This explains in part the universality observed in the predictions of a certain number of inflation models. We illustrate this behavior on a certain number of examples and discuss it in the context of the AdS/CFT correspondence.

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Inflationary Particle Production and the Swampland
hep-th 2025-12 conditional novelty 6.0 of 10

Tower-induced corrections to inflationary observables scale as (H/Λsp)^{2+p} and are negligible whenever H≪Λsp.

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