226 citations · 1.4k across the 19 of their papers we have counts for
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Revisiting modular symmetry in magnetized torus and orbifold compactifications
Shota Kikuchi, Tatsuo Kobayashi, Shintaro Takada +2
We study the modular symmetry in and orbifold comfactifications with magnetic fluxes. There are zero-modes on with the magnetic flux . Their wavefunctions as w…
F-term Moduli Stabilization and Uplifting
Tatsuo Kobayashi, Osamu Seto, Shintaro Takada +3
We study Kähler moduli stabilization in IIB superstring theory. We propose a new moduli stabilization mechanism by the supersymmetry-braking chiral superfield which is coupled to K…
Quark mass matrices in magnetized orbifold models with localized Fayet-Iliopoulos terms
H. Abe, T. Kobayashi, S. Takada +2
We study magnetized orbifold models. We assume the localized Fayet-Iliopoulos terms and the corresponding gauge background. Such terms lead to strong localization of zero-mode wave…
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 . Non-Abelian flavor symmetry in the model with magnetic flux (in a certain unit) is a subgroup of th…
Radiative Kähler moduli stabilization
Tatsuo Kobayashi, Naoya Omoto, Hajime Otsuka +1
We propose a new type of Kähler moduli stabilization mechanisms in type IIB superstring theory on Calabi-Yau manifolds with the positive Euler number. The overall Kähler modulus ca…
Supersymmetry preserving and breaking degenerate vacua, and radiative moduli stabilization
Tatsuo Kobayashi, Naoya Omoto, Hajime Otsuka +1
We propose a new type of moduli stabilization scenario where the supersymmetric and supersymmetry-breaking minima are degenerate at the leading level. The inclusion of the loop-cor…
Toward pole inflation and attractors in supergravity : Chiral matter field inflation
Tatsuo Kobayashi, Osamu Seto, Takuya H. Tatsuishi
In string-inspired supergravity theory, Kähler metric of chiral matter fields often has a pole. Such Kähler metric is interesting from the viewpoint of the framework of the pole in…