A solution to the de Sitter swampland conjecture versus inflation tension via supergravity

Atli U., Güleryüz Ö.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, vol.2021, no.4, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2021 Issue: 4
  • Publication Date: 2021
  • Doi Number: 10.1088/1475-7516/2021/04/027
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, INSPEC, zbMATH
  • Keywords: inflation, string theory and cosmology, supersymmetry and cosmology, SUPERSYMMETRY, SYMMETRY, FLATNESS, UNIVERSE, HORIZON
  • Istanbul Technical University Affiliated: Yes


The methods of supergravity allow us to derive a multi-field F-term potential. Using this, we denote a generic and non-positive single-field F-term potential. We insert our theory into the scalar-gravity part of the SU(2, 1 vertical bar 1) invariant superconformal action. That action leads us to a de Sitter solution at the inflationary trajectory. One can denote stabilization of fields in terms of the Kahler kinetic terms and single-field slow-roll inflation parameters. We combine these with the de Sitter swampland conjecture to generate a bounded conjecture. This approach allowed us to show that the single field slow-roll inflation works in harmony with bounded de Sitter conjecture for any concave inflation potential.