Foundations for the Creation of Yixian Physics: Logical Introduction of Yixian and Interpretation of Fundamental Flaws in Modern Physical Systems

Conventional physics consists of disjoint branches with separate basic postulates and unobservable virtual constructs like curved spacetime and virtual particles, leading to fragmented logic that cannot coherently explain many microscopic and cosmic physical phenomena.This paper establishes a unified ternary dimensional physical paradigm based on Yixian, the fundamental real substance of the universe. All natural physical laws can be simplified to a unified underlying constitutive equation via dimensionless normalization.Supported by quantum experiments, torsion balance tests, nuclear reaction phenomena, astronomical observations and logical reasoning, the theory uniformly interprets quantum entanglement, atomic clock offset, galactic rotation anomalies, ionization and electromagnetic effects through Yixian’s density gradient and resonant coupling, without redundant hypothetical substances.Instead of patching existing flawed frameworks, this study reconstructs the whole logical system of physics, bridges macro and micro physics, and follows Occam’s Razor to offer a self-consistent real-substance fundamental theory.