Swampland implications of GW170817-compatible Einstein-Gauss-Bonnet gravity

DOI10.1016/J.PHYSLETB.2020.135437zbMATH Open1436.83065arXiv2004.00479OpenAlexW3020506053MaRDI QIDQ777801

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Publication date: 7 July 2020

Published in: (Search for Journal in Brave)

Abstract: We revisit the Einstein-Gauss-Bonnet theory in view of the GW170817 event, which compels that the gravitational wave speed is equal to $c_T^2=1$ in natural units. We use an alternative approach compared to one previous work of ours, which enables us to express all the slow-roll indices and the observational indices as functions of the scalar field. Using our formalism we investigate if the Swampland criteria are satisfied for the Einstein-Gauss-Bonnet theory and as we demonstrate, the Swampland criteria are satisfied for quite general forms of the potential and the Gauss-Bonnet coupling function $xi(phi)$, if the slow-roll conditions are assumed to hold true.

Full work available at URL: https://arxiv.org/abs/2004.00479

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