Dynamics of BPS Dyons: Effective Field Theory Approach
Dongsu Bak, Choonkyu Lee, Kimyeong Lee
TL;DR
This paper derives an effective field theory for BPS dyons in SU(2) Yang-Mills-Higgs systems, capturing low-energy interactions, duality, and symmetry breaking, and extends it to arbitrary gauge groups.
Contribution
It introduces a novel effective field theory framework for BPS dyons that incorporates electromagnetic duality and broken scale symmetry, generalizing previous models.
Findings
Reproduces multimonopole moduli space dynamics
Shows electromagnetic duality in the effective theory
Extends approach to arbitrary gauge groups
Abstract
Based on a detailed analysis of nonlinear field equations of the SU(2) Yang-Mills-Higgs system, we obtain the effective field theory describing low-energy interaction of BPS dyons and massless particles (i.e., photons and Higgs particles). Our effective theory manifests electromagnetic duality and spontaneously broken scale symmetry, and reproduces the multimonopole moduli space dynamics of Manton in a suitable limit. Also given is a generalization of our approach to the case of BPS dyons in a gauge theory with an arbitrary gauge group that is maximally broken.
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