5 papers
More about modular symmetries and non-invertible properties in magnetized compactifications
Tatsuo Kobayashi, Shuhei Miyamoto, Riku Nakano +2
We study the modular symmetry in magnetized compactifications. The zero-modes with different Scherk-Schwarz phases transform each other. A generic model does not include modes with…
Residual group-like symmetries in selection rules without group actions
Jun Dong, Tatsuo Kobayashi, Shuhei Miyamoto +2
We analyze loop-induced group-like symmetries in theories where fields are labeled by basis elements of a fusion algebra constructed from the conjugacy classes of finite groups. Al…
Non-Invertible Selection Rules on Heterotic Non-Abelian Orbifolds
Tatsuo Kobayashi, Ryusei Nishida, Hajime Otsuka
We investigate coupling selection rules in heterotic string theory on non-Abelian orbifolds. Since boundary conditions on the orbifolds are classified by conjugacy classes of space…
Coupling Selection Rules in Heterotic Calabi-Yau Compactifications
Jun Dong, Tatsuo Kobayashi, Ryusei Nishida +2
We study coupling selection rules of chiral matter fields in heterotic string theory with standard embedding. These selection rules are determined by topological properties of Cala…
On discrete gauging and non-invertible selection rules
Jun Dong, Tim Jeric, Tatsuo Kobayashi +2
We clarify selection rules of conjugacy classes of several finite discrete groups where we deal with both gauged and ungauged cases. We find that the selection rules enjoy finite A…