(30.04.) Effective potentials, warping, and implications for F-term uplifting
Severin Lüst (LPTHE Paris)
30.04.2026 at 16:15
I discuss warping corrections to the scalar potential in flux compactifications of Type IIB string theory, focusing on their effect on F-term de Sitter uplifting in Calabi-Yau orientifold models. For this purpose, I develop a systematic inverse-volume expansion to derive the four-dimensional off-shell potential in the presence of warping and non-ISD 3-form fluxes. This corresponds to integrating out all massive Kaluza-Klein modes using the ten-dimensional equations of motion. Including Kähler moduli stabilization along the lines of KKLT, I show that classical warping corrections as well as mixed effects involving non-ISD fluxes and quantum effects become dominant. As a result, the construction is driven into a regime of parametric loss of control, placing it in the swampland. The talk is based on arXiv:2512.17995.
A348