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arXiv · 2301.02109

Theories of gravity with nonminimal matter-curvature coupling and the de Sitter swampland conjectures

Orfeu Bertolami·Cláudio Gomes·Paulo M. Sá
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Abstract

We discuss, in the context of alternative theories of gravity with nonminimal coupling between matter and curvature, if inflationary solutions driven by a single scalar field can be reconciled with the swampland conjectures about the emergence of de Sitter solutions in string theory. We find that the slow-roll conditions are incompatible with the swampland conjectures for a fairly generic inflationary solution in such alternative theories of gravity.

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Orfeu Bertolami, Cláudio Gomes, Paulo M. Sá. 2023-01-05. Theories of gravity with nonminimal matter-curvature coupling and the de Sitter swampland conjectures. https://doi.org/10.1103/physrevd.107.084009

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