2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55134Evidence is discussed, from lattice simulations, that QCD vacuum is a dual superconductor in the confining phase, and undergoes a phase transition to normal at the deconfining temperature.23 pages, 10 figures, contribution to the Workshop "Confinement, Duality and Non-Perturbative Aspects of QCD", Cambridge (UK), 24 June - 4 July 1997. Latex file including plenum.styHigh Energy Physics - Theorytext