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Constraints in the Context of Induced-gravity Inflation

David I. Kaiser
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Abstract

Constraints on the required flatness of the scalar potential $V(ϕ)$ for a cousin-model to extended inflation are studied. It is shown that, unlike earlier results, Induced-gravity Inflation can lead to successful inflation with a very simple lagrangian and $λ\sim 10^{-6}$, rather than $10^{-15}$ as previously reported. A second order phase transition further enables this model to escape the \lq big bubble' problem of extended inflation, while retaining the latter's motivations based on the low-energy effective lagrangians of supergravity, superstring, and Kaluza-Klein theories.

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David I. Kaiser. 1994-03-15. Constraints in the Context of Induced-gravity Inflation. https://doi.org/10.1103/physrevd.49.6347

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