1-2 pm: Global Aspects of 3-Form Fields in Axion Yang-Mills Systems

Particle Physics Theory seminar

1-2 pm: Global Aspects of 3-Form Fields in Axion Yang-Mills Systems

  • Event time: 12:30pm until 2:30pm
  • Event date: 23rd April 2025
  • Speaker: Mohamed Anber (Durham University)
  • Location: Room 4325B,

Event details

Title: Global Aspects of 3-Form Fields in Axion Yang-Mills Systems

Abstract: Generalized symmetries have proved crucial for understanding quantum fields. In this talk, after introducing the importance of axions in particle physics, I highlight the role of higher-form symmetries within the axion Yang-Mills theory. This system exhibits an emergent 2-form symmetry, which must be gauged to satisfy certain 't Hooft anomaly matching conditions. The resulting 3-form gauge theory provides a compelling description of the infrared (IR) dynamics of axion domain walls. It also captures the interplay between the light axion and the heavier hadronic degrees of freedom.  Time permitting, I will discuss how the global structure of the ultraviolet gauge group determines whether the system supports an IR fractional quantum Hall state on the axion domain walls.

About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..

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