Modular symmetry and non-Abelian discrete flavor symmetries in string compactification

Tatsuo Kobayashi, Satoshi Nagamoto, Shintaro Takada +2

We study the modular symmetry in magnetized D-brane models on $T^2$. Non-Abelian flavor symmetry $D_4$ in the model with magnetic flux $M=2$ (in a certain unit) is a subgroup of th…