2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/116075Following the direct observation of abrupt changes in the superconducting ground state in doped low dimensional antiferromagnets, we have identified a phase transition where superconductivity is optimal. The experiments indicate the presence of a putative quantum critical point associated with the emergence of a glassy state. This mechanism is argued to be an intrinsic property and as such largely independent of material quality and the level of disorder.Invited article in memory of D. Shoenberg; To be published by the American Inst. of Phys. and the journal of Low Temp. PhysStrongly Correlated ElectronsSuperconductivitytext