16 citations · 32 across the 4 of their papers we have counts for
4 papers
On (Scalar QED) Gravitational Positivity Bounds
Yuta Hamada, Rinto Kuramochi, Gregory J. Loges +1
We study positivity bounds in the presence of gravity. We first review the gravitational positivity bound at the tree-level, where it is known that a certain amount of negativity i…
Non-split singularities and conifold transitions in F-theory
Rinto Kuramochi, Shun'ya Mizoguchi, Taro Tani
In F-theory, if a fiber type of an elliptic fibration involves a condition that requires an exceptional curve to split into two irreducible components, it is called ``split'' or ``…
Magic square and half-hypermultiplets in F-theory
Rinto Kuramochi, Shun'ya Mizoguchi, Taro Tani
In six-dimensional F-theory/heterotic string theory, half-hypermultiplets arise only when they correspond to particular quaternionic Kähler symmetric spaces, which are mostly assoc…
More on a dessin on the base: Kodaira exceptional fibers and mutually (non-)local branes
Shin Fukuchi, Naoto Kan, Rinto Kuramochi +2
A "dessin d'enfant" is a graph embedded on a two-dimensional oriented surface named by Grothendieck. Recently we have developed a new way to keep track of non-localness among 7-bra…