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hep-th2025
Towards the Non-Perturbative Completion of 4d N=1 Effective Theories of Gravity
Gonzalo F. Casas, Max Wiesner
We show that four-dimensional effective theories of gravity obtained from string compactifications require a non-perturbative completion, as additional light states…
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…