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

Abstract

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 (2,1|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 Kähler 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.

On the Trans-Planckian Censorship Conjecture and the generalized non-minimal coupling

“…Also, one should note that the sign of the supergravity F-term potential is not fixed and is determined by the theory. As shown in [115], even with a negative signed effective potential term, one can configure the setup accordingly to obtain a Lagrangian that corresponds to a de Sitter solution of gravity, such as inflation theory.…”

On the Trans-Planckian Censorship Conjecture and the Generalized Non-Minimal Coupling

“…Also, one should note that the sign of the supergravity F-term potential is not fixed and is determined by the theory. As shown in [74], even with a negative signed effective potential term, one can configure the setup accordingly to obtain a Lagrangian that corresponds to a de Sitter solution of gravity, such as inflation theory.…”

Inflationary Implications of the Covariant Entropy Bound and the Swampland de Sitter Conjectures

“…The refined version of the conjecture was motivated by stability of de Sitter extrema [8], by cosmological arguments through the slow-roll parameter η V [9], as well as by entropy arguments together with the distance conjecture on the dS space [10]. Many logic and solid arguments have been followed in the literature [11][12][13][14][15][16][17][18][19][20] so far with the purpose to give stronger ground basis to this conjecture. A matter of particular interest to us is the series of arguments supporting the de Sitter conjecture (dSC) based on the laws of thermodynamics [21][22][23][24].…”