Emergent Quantum Regimes from Decoherent Projections

We present an emergent account of quantum theory based on a minimal correlational framework in which no fundamental states, dynamics, or probabilistic axioms are assumed. Quantum behavior arises from admissible decoherent projections that induce equivalence classes of correlational configurations and suppress relational phase information. Effective quantum states are identified with these equivalence classes, while probability emerges as a normalized structural measure over them. The Born rule is recovered as a consistency condition associated with linear representations of equivalence classes, and measurement is reinterpreted as a structural interaction defined by projection rather than as a physical collapse. Decoherence, probability, and classicality are unified as manifestations of restricted access to correlational information stabilized by persistence. Quantum theory is thereby situated as an emergent, regime-dependent description alongside propagation and gravitation, resolving its conceptual puzzles by demoting its formal elements from fundamental postulates to effective constructs.