Higuchi Bound on Slow Roll Inflation and the Swampland

Lüben, Marvin; Lust, Dieter

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Higuchi Bound on Slow Roll Inflation and the Swampland

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Lüben, Marvin
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lust, Dieter
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Lüben, M., & Lust, D. (2020). Higuchi Bound on Slow Roll Inflation and the Swampland. Journal of High Energy Physics, 09, 055. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2020-31.

Cite as: https://hdl.handle.net/21.11116/0000-0008-1C69-4

Abstract

In this paper we study the implications of the generalized Higuchi bound on massive spin-two fields for the derivative of the scalar potential within bimetric theory. In contrast to the recent de Sitter swampland conjecture, an upper bound on the derivate of the scalar potential follows from the generalized Higuchi bound. In combination, this leaves a window for the derivate of the scalar potential. We discuss this bound in several representative bimetric models and parameter regions.