3 papers
hep-th2025
Classification of Modular Symmetries in Non-Supersymmetric Heterotic String theories
Shuta Funakoshi, Yuichi Koga, Hajime Otsuka
We study modular symmetries in non-supersymmetric heterotic string theories on toroidal backgrounds with Wilson line modulus, constructed by stringy Scherk-Schwartz compactificatio…
hep-th2024
Quantum aspects of non-invertible flavor symmetries in intersecting/magnetized D-brane models
Shuta Funakoshi, Tatsuo Kobayashi, Hajime Otsuka
We discuss selection rules of chiral matters in type IIA intersecting and IIB magnetized D-brane models on toroidal orbifolds. Since the chiral matters on toroidal orbifolds are la…
hep-th2024
Moduli stabilization and light axion by Siegel modular forms
Shuta Funakoshi, Junichiro Kawamura, Tatsuo Kobayashi +2
We discuss the stabilization of multiple moduli by utilizing Siegel modular forms in the framework of modular invariant theories. We derive the stationary condi…