Time: 10:00-12:00, Apr. 16, 2024

Location: Rm 401 Meeting Room, KITS Building

Speaker: Futoshi Yagi (Southwest Jiaotong University)

Abstract:

In this talk, we discuss that ``O7^+ plane'' and ``O7^- plane with 8 D7-branes'' play analogous role to each other, which we denote as "freezing". This effect indicates that two different gauge theories provide some kind of ``equivalence'' at the level of cubic prepotentials, Seiberg-Witten curves and Nekrasov partition functions. Through this study, we also find novel phenomenon called "BPS jumping". We propose two types of gauge theories whose BPS spectra jump. One is the SU(2N+8) gauge theory with a symmetric hypermultiplet converted to the SU(2 N) gauge theory with an antisymmetric hypermultiplet. The other is pure SO(2N+8) gauge theory jumping to pure Sp( N) gauge theory. This talk is bases on the collaboration with H.Hayashi, S-S.Kim, and K. Lee (arXiv:2306.11631) as well as the collaboration with S-S.Kim, X. Li, and S.Nawata (arXiv:2403.12525)