3 papers
hep-th2026
Calabi-Yau Orientifold Hypersurfaces and their F-theory Uplifts
Bjoern Hassfeld, Jakob Moritz
We present an algorithm that constructs Calabi-Yau threefold orientifolds and their -theory uplifts to elliptically-fibered Calabi-Yau fourfolds, embedded in toric varieties at…
hep-th2025
-manifolds from Diophantine equations
Jakob Moritz
We argue that perturbatively flat vacua (PFVs) introduced in \cite{Demirtas:2019sip} are dual to M-theory compactifications on -manifolds, enabling the enumeration of potentia…
hep-th2024
Glimmers from the Axiverse
Naomi Gendler, David J. E. Marsh, Liam McAllister +1
We study axion-photon couplings in compactifications of type IIB string theory. We find that these couplings are systematically suppressed compared to the inverse axion periodicity…