What we do understand of Colour Confinement

Abstract

A review is presented of what we understand of colour confinement in QCD. Lattice formulation provides evidence that QCD vacuum is a dual superconductor: the chromoelectric field of a $q\bar{q}$ pair is constrained by dual Meissner effect into a dual Abrikosov flux tube and the static potential energy is proportional to the distance.

Comments: 10 pages, 5 figures, plenary talk at "Quark Matter 99", Torino, Italy, May 10-15, 1999