Deterministic Coherence Invariants in Electromagnetic and Cosmological Light Propagation

CODES Framework Abstract Light is reframed as deterministic coherence transfer rather than motion of particles or waves. Using the conserved scalar Phase Alignment Score (PAS_path), electromagnetic propagation and cosmological redshift are derived as lawful field-state realignments, not energy transport. The Poynting vector becomes the rate of local coherence update, and the constant c represents the coherence-rate limit (ΔPAS_zeta ≤ ε_drift), not particle velocity. Three coherence invariants—PAS_path, ΔPAS_zeta, and τ_k echo discretization—predict measurable deviations in harmonic attenuation, lensing symmetry, and spectroscopic drift. Redshift follows exponential coherence decay (γ = β · H (t)), matching GR predictions while replacing probabilistic photon models with deterministic field mechanics. The framework unifies light, gravity, and observation as expressions of a single coherence law: propagation = inward field realignment, gravitation = curvature of coherence density, observation = lawful PAS_lock recursion. This work extends Structured Resonance Dynamics and Harmonic–Differential Equivalence to electromagnetic and cosmological domains, completing the physical closure of the deterministic coherence framework.