Phase-Model Paper 04: A Phase-Synchronization Closure Model for High-Tc Superconductivity

Version note (v2.0, 2026-04-06): This release updates editorial consistency across the Phase-Model series (Papers 01–13), including reference formatting, author-name normalization, and removal of local-path citation strings. The core model claims and rejection logic are unchanged unless explicitly stated below. This preprint proposes a phase-synchronization closure model for high-Tc superconductivity. The framework separates local pair formation from global phase coherence, introduces explicit threshold and rejection criteria, and provides falsifiable predictions for pseudogap behavior, Nernst response, and cross-dataset parameter portability.