New Frontiers in QCD 2026

Emergence of Magnetic Monopoles and Quark Confinement due to Violation of the Non-Abelian Bianchi Identity

Nov 12, 2026, 5:15 PM

25m

Panasonic Auditorium, Yukawa Hall (YITP, Kyoto University)

(5th week, Nov. 9-13) Theoretical Developments in QCD and related topics Week 5: Theoretical Developments in QCD and related topics

Speaker

Akihiro Shibata (Computing Reserch Center, KEK)

Description

The dual superconductor picture is a promising mechanism for quark confinement, and magnetic monopoles play a dominant role in quark confinement. To understand the mechanism of quark confinement, we investigate the relationship among the violation of the non-Abelian Bianchi identity (VNABI), the emergence of magnetic monopoles, and quark confinement by using the gauge-covariant decomposition and the non-Abelian Stokes theorem for the Wilson loop. The emergence of magnetic monopoles gives rise to VNABI, which contributes to quark confinement.

Furthermore, we perform numerical simulations to investigate the relationship between VNABI and the emergence of magnetic monopoles responsible for quark confinement.