A Minimal Scalar Field Framework for Inertial Interaction

This work presents a minimal scalar-field framework in which inertial interaction arises from a spatial potential generated by distributed inertial energy. The framework is defined by a single scalar potential and its gradient, without invoking spacetime curvature, tensor formalism, or quantum gravity assumptions. The model recovers the Newtonian limit for localized sources and admits linear superposition, while remaining open to system-dependent responses such as light deflection and signal drift. The purpose of this work is not to claim empirical validation, but to provide a structurally minimal and self-consistent framework that can be independently tested, extended, or falsified.