Theory of Unified Three Fundamental Forces: Gravitation, Electromagnetic Force, and Strong Force

modern physics, gravitation, electromagnetic force, strong interaction, and weak interaction are usually classified as four fundamental interactions. However, the weak interaction is essentially a process of particle decay and energy release, not an attractive or binding interaction between two bodies, so it should not be included in the unification of fundamental forces. This paper excludes the weak interaction and takes gravitation, electromagnetic force, and strong force as the three real fundamental interactions in nature. Based on fundamental physical observables such as mass, distance, and electric charge, a concise and self-consistent unified theory is constructed. Gravitation and strong force are homologous mass-coupling interactions that follow the same inverse-square law structure, differing only in coupling constants and exponential decay terms for different scales. The electromagnetic force, as a charge interaction, also obeys the inverse-square law and can be integrated into the same unified framework. By unifying gravitation and strong force and incorporating the electromagnetic force, this paper realizes the unification of gravitation, electromagnetic force, and strong force. The theory eliminates redundant hypotheses, is mathematically self-consistent, quantifiable, and testable, and achieves the long-sought goal of unified field theory in fundamental physics.