The SU(2) Confining Vacuum as a Dual Superconductor

TL;DR

This paper provides evidence supporting the dual superconductivity hypothesis in SU(2) gauge theory by observing the dual Meissner effect and estimating the string tension through the London penetration length.

Contribution

It demonstrates dual superconductivity in SU(2) gauge theory both with and without gauge fixing, and estimates the string tension from the London penetration length.

Findings

Evidence of the dual Meissner effect in SU(2) gauge theory.

Successful estimation of string tension using London penetration length.

Dual superconductivity observed in different gauge conditions.

Abstract

We investigate the dual superconductivity hypothesis in pure SU(2) lattice gauge theory. We find evidence of the dual Meissner effect both in the maximally Abelian gauge and without gauge fixing. We also obtain a rather good extimation of the string tension using the value of the London penetration length.