Japan-UK Workshop on Quantum Gravity

Yang-Mills/QCD on R2xT2, adiabatic continuity, and eta' potential

24 Sept 2025, 11:00

1h

8F Lecture theatre (RIKEN Kobe Integrated Innovation Building (理化学研究所の神戸キャンパスの融合連携イノベーション推進棟))

Speaker

Yuya Tanizaki

Description

We show that 4d Yang-Mills/QCD can be semi-classically solved on R2xT2 with nontrivial 't Hooft flux. In this setup, 4d instanton splits into N center-vortex fractional instantons, and its dilute gas describes qualitative features of 4d confinement vacua via the adiabatic continuity. When we apply this technique to QCD with fundamental quarks, we can learn about the global structure of the eta' potential.