2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137670We show that an alternative theory of superconductivity recently proposed (theory of hole superconductivity) leads to the surprising consequence that real electron-positron pair production will occur for superconductors larger than a critical size. High frequency radiation with frequencies up to $0.511MeV/\hbar$ is predicted to be emitted from superconductors out of equilibrium. Attention to the possibility of harmful consequences is called for.2 sections added - title expandedSuperconductivityStrongly Correlated Electronstext