3 papers
hep-th2026
Some Properties and Uses of the Species Scale
Luis E. Ibáñez
The 'Species Scale' has proved to be an important concept when studying consistent effective actions in Quantum Gravity. This is a short summary of my contribution to the Corfu Sum…
hep-th2026
Laplacians in Various Dimensions and the Swampland
Christian Aoufia, Alberto Castellano, Luis Ibáñez
The species cutoff is a moduli-dependent quantity signaling the onset of quantum gravitational phenomena, whose form can be oftentimes determined from higher-derivative and higher-…
hep-th2025
Moduli Self-Fixing
Gonzalo F. Casas, Luis E. Ibáñez
In Quantum Gravity (QG), large moduli values lead to towers of exponentially light states, making the QG cut-off field-dependent. In 4D supersymmetric (SUSY) theories, this cut-off…