Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série SEM-LPTHE
Domaines hep-th
Date Mercredi 17 Décembre 2025
Heure 11:00
Institut LPTHE
Salle LPTHE library
Nom de l'orateur Ruehle
Prenom de l'orateur Fabian
Addresse email de l'orateur
Institution de l'orateur Northeastern University
Titre Backreaction of Fluxes on Calabi-Yau Metrics
Résumé We study warped IIB flux solutions using the setup of Giddings-Kachru-Polchinski. The solution leads to a warped metric with a warp factor that only depends on the internal coordinates. We want to study the functional form of the warp factor to investigate the singular bulk problem, which states that the warped region is not a small throat in the CY but almost the entire CY becomes strongly warped, which means that the supergravity solution is not well under control. I will explain the necessary steps to study this, which include approximating the CY metric with a neural network, finding imaginary self-dual flux solutions that stabilize the complex structure moduli close to a confiold point, constructing a basis of harmonic (2,1) forms (again using neural networks), and solving the differential equation for the warp factor (using a third neural network). We also discuss several improvements we made to minimize the numerical errors close to the singular regions.
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