Recent quantum information experiments demonstrate universal protocols capable of reversing, pausing, or accelerating the evolution of isolated quantum systems. These results are frequently described as ``quantum time reversal.'' In this paper, we present a rigorous reinterpretation using the MXD--COGN mixed-domain, mixed-depth coherence engineering framework. We show that quantum rewinding corresponds to restoration of inference-loop closure under deformation rather than reversal of physical time. We introduce a global coherence order parameter $\Phi$, provide an operational estimator $\widehat{\Phi}$ from experimentally accessible observables, and derive falsifiable predictions regarding metastability, critical collapse, and scaling limits. We complement the theory with illustrative simulations of $\Phi(\lambda)$ showing metastable basins and cliff-like transitions near a critical threshold $\Phi_c$. The framework provides audit-ready metrics for quantum time-control experiments and suggests practical diagnostics for quantum technologies.
Recent quantum information experiments demonstrate universal protocols capable of reversing, pausing, or accelerating the evolution of isolated quantum systems. These results are frequently described as ``quantum time reversal.'' In this paper, we present a rigorous reinterpretation using the MXD--COGN mixed-domain, mixed-depth coherence engineering framework. We show that quantum rewinding corresponds to restoration of inference-loop closure under deformation rather than reversal of physical time. We introduce a global coherence order parameter $\Phi$, provide an operational estimator $\widehat{\Phi}$ from experimentally accessible observables, and derive falsifiable predictions regarding metastability, critical collapse, and scaling limits. We complement the theory with illustrative simulations of $\Phi(\lambda)$ showing metastable basins and cliff-like transitions near a critical threshold $\Phi_c$. The framework provides audit-ready metrics for quantum time-control experiments and suggests practical diagnostics for quantum technologies.
