A Spiral-Time Operator Layer for Quantum Engineering: Phase-Memory Diagnostics, Regime Prediction, and Closed-Loop Control
Marcel Krüger
Abstract
Advanced quantum technologies increasingly depend on the stable operation of open, noisy, history-dependent systems. Examples include superconducting qubits, trapped ions, NVcenters, quantum sensors, photonic platforms, topological devices, and hybrid quantumclassical feedback architectures. Standard quantum theory provides the correct microscopic dynamical framework, but practical quantum engineering often requires an additional operational layer capable of detecting phase drift, coherence loss, memory effects, and regime transitions before they degrade device performance or propagate into unsafe control decisions. This manuscript proposes a conservative Spiral-Time operator layer for quantum engineering. The central object is a triadic phase-memory embedding ψ(t) = t+iϕ(t)+jχ(t), where t denotes external temporal ordering, ϕ(t) encodes phase/coherence state, and χ(t) encodes finite memory, torsion, or abrupt divergence. From measured system observables, the framework constructs a deterministic instability functional ∆Φ(t), interpretable as a distance from a calibrated stability manifold in structure–information–coherence space. The operator is not proposed as a replacement for quantum mechanics, Lindblad dynamics, process-tensor theory, optimal control, or Hamiltonian engineering. Instead, it is formulated as an auditable diagnostic and supervisory interface that maps observed quantum-system trajectories into control-relevant variables. A closed-loop extension is introduced in which the Spiral-Time state informs physically allowed control inputs such as laser phase, pulse timing, magnetic field, gate voltage, measurement basis, cooling schedule, or feedback Hamiltonian terms. The manuscript defines recovery limits, admissibility conditions, validation protocols, falsification criteria, and safety boundaries. Its purpose is to establish a rigorous roadmap for testing whether phase-memory diagnostics can improve regime prediction, stabilization, and auditability in open quantum technologies.