Physics of Retention - Operational and Experimental Framework (Core Paper)

Core theoretical paper defining the operational and experimental framework of the Physics of Retention. This document formalizes concepts, definitions, measurable variables, and validation principles used for experimental replication and long-term coherence analysis. This file represents the reference document for citation and conceptual alignment.本核心理论论文界定了留存物理学（Physics of Retention）的操作与实验框架。本文正式确立了用于实验复现与长期一致性分析的各类概念、定义、可测量变量及验证准则。本文件为相关引用与概念对齐的标准参考文档。