Coherence, Transient Dynamics, and Recovery: A Two-Regime Reinterpretation of Quantum State Evolution

Abstract This paper proposes a conservative reinterpretation of quantum phenomena within standard Hilbert space formalism. Rather than treating superposition, decoherence, and measurement as ontologically distinct primitives requiring separate explanatory frameworks, we suggest these phenomena can be coherently understood as dynamical regimes of a single system oscillating between two macrostates: a coherent steady-state regime characterised by constraint-aligned stability, and a transient underconstrained regime characterised by temporarily increased degrees of freedom. Within this framing, decoherence is reinterpreted not as collapse or information loss, but as natural dynamical recovery toward a coherence attractor following environmental perturbation. This interpretive compression introduces no new postulates, no modifications to the quantum formalism, and no claims of empirical novelty. It is offered as a conceptual reorganisation that may reduce interpretive proliferation by unifying apparently disparate phenomena under a common dynamical description. The approach is compatible with standard decoherence theory and maintains neutrality with respect to existing interpretations of quantum mechanics.