6 papers
The absence of global anomalies of CP symmetry
Kazuya Yonekura
Some solutions to the strong CP problem assume that CP symmetry is a gauge symmetry, which is then spontaneously broken. For this scenario to be possible, the CP symmetry should no…
Large angle in two-dimensional large model
Tsubasa Sugeno, Takahiro Yokokura, Kazuya Yonekura
In confining large theories with a angle such as four-dimensional pure Yang-Mills theory, there are multiple metastable vacua and it makes sense to conside…
Black -Branes in Heterotic String Theory
Masaki Fukuda, Shun K. Kobayashi, Kento Watanabe +1
Heterotic string theory has nonsupersymmetric branes whose existence is suggested by the cobordism conjecture. We numerically construct static, spherically symmetric, and asymptoti…
On non-supersymmetric heterotic branes
Justin Kaidi, Yuji Tachikawa, Kazuya Yonekura
A uniform construction of non-supersymmetric 0-, 4-, 6- and 7-branes in heterotic string theory was announced and outlined in our letter \cite{Kaidi:2023tqo}. In this full paper, w…
Dualities among Neveu-Schwarz sector branes in string theory
Kazuya Yonekura
We conjecture dualities among branes that consist of Neveu-Schwarz sector fields, such as NS5-branes. Two branes are dual after compactifications on spheres with gauge fluxes. The…
Constraints on the topology of Type IIB string theory
Kazuya Yonekura
We discuss some topological constraints on Type IIB string theory that cannot be described by elementary characteristic classes. Anomaly cancellation of the worldvolume theory of a…