Theories of gravity with nonminimal matter-curvature coupling and the de Sitter swampland conjectures
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.
- Publication:
-
Physical Review D
- Pub Date:
- April 2023
- DOI:
- 10.1103/PhysRevD.107.084009
- arXiv:
- arXiv:2301.02109
- Bibcode:
- 2023PhRvD.107h4009B
- Keywords:
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- General Relativity and Quantum Cosmology;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 12 pages