Xiaobin Li

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hep-th2025

Topological Vertex for Symmetric matter

Sung-Soo Kim, Xiaobin Li, Futoshi Yagi +1

We propose a novel topological vertex formalism for 5d $N = 1$ SU( $N$ ) gauge theory with a hypermultiplet in the symmetric tensor representation, whose Type IIB brane const…

hep-th2025

O-vertex, O7 $^{+}$ -plane, and Topological Vertex

Sung-Soo Kim, Xiaobin Li, Futoshi Yagi +1

We revisit the instanton partition function for 5d $N = 1$ SO( $N$ ) gauge theories compactified on S $^{1}$ , computed from the topological vertex formalism with the O-vertex ba…

hep-th2024

Freezing and BPS jumping

Sung-Soo Kim, Xiaobin Li, Satoshi Nawata +1

We report a novel BPS jumping phenomenon of 5d $N = 1$ supersymmetric gauge theories whose brane configuration is equipped with an O $7$ -plane. The study of the relation bet…

Topological Vertex for Symmetric matter

O-vertex, O7+-plane, and Topological Vertex

Freezing and BPS jumping

O-vertex, O7 $^{+}$ -plane, and Topological Vertex