2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/166107We show how recent angle resolved photoemission measurements addressing the Fermi arcs in the cuprates reveal a very natural phenomenological description of the complex superfluid phase. Importantly, this phenomenology is consistent with a previously presented microscopic theory. By distinguishing the order parameter and the excitation gap, we are able to demonstrate how the collapse of the arcs below $T_c$ into well defined nodes is associated with the \emph{smooth} emergence of superconducting coherence. Comparison of this theory with experiment shows good semi-quantitative agreement.4 pages, 4 figures, replaced with updated versionSuperconductivityStrongly Correlated ElectronsUnderstanding the Protected Nodes and Collapse of the Fermi Arcs in Underdoped Cuprate Superconductorstext