Superconformal Vacua in N=2 Usp(4) Gauge Theories

TL;DR

This paper investigates the confining vacuum in N=2 USp(4) gauge theory with four flavors, revealing a deformed conformal phase with nonabelian monopole condensation as the mechanism for confinement.

Contribution

It provides a detailed analysis of the nonabelian monopole dynamics and the structure of the confining vacuum in this specific supersymmetric gauge theory.

Findings

Identification of a deformed conformal vacuum with nonabelian gauge symmetry.

Demonstration that monopole condensation leads to confinement.

Characterization of the low-energy degrees of freedom including monopoles, dyons, and electric doublets.

Abstract

We study the dynamics of a confining vacuum in N=2 USp(4) gauge theory with n_f=4. The vacuum appears to be a deformed conformal theory with nonabelian gauge symmetry. The low-energy degrees of freedom consist of four nonabelian magnetic monopole doublets of the effective SU(2) colour group, two dyon doublets and one electric doublet. In this description the flavour quantum number is carried only by the monopoles. We argue that confinement is caused by the condensation of these monopoles, and involves strongly interacting nonabelian degrees of freedom.