Symmetry-Driven Coherence Preservation in Open Quantum Systems: From a Negative Single-Qubit Specificity Audit to a Locked Two-Qubit Decoherence-Free-Subspace Benchmark
Krüger, Marcel, Feeney, Don Michael Jr
Decoherence is a fundamental limitation in open quantum systems, yet recent developments indicate that coherence loss need not be strictly irreversible. In this work, we introduce a symmetrydriven coherence restoration (SDCR) framework in which structured temporal and geometric symmetries suppress dominant decohering channels without modifying fundamental quantum dynamics. The framework is formulated within a conservative extension of open-system theory and does not introduce new particles, interactions, or collapse mechanisms. Instead, SDCR emerges from symmetry alignment in an extended dynamical structure, leading to small but systematic phase corrections while preserving standard scaling relations. We provide a unified description across Lindblad, Redfield, and influence-functional formulations and demonstrate that SDCR admits a compact algebraic embedding using octonionic structures as an internal organizational tool. Phenomenological implications are discussed for neutrino oscillations, interferometry, and precision gravimetry, where SDCR predicts experimentally accessible signatures within current and near-future sensitivities. The framework is explicitly falsifiable and reduces to standard decoherence in the absence of symmetry alignment. SDCR thus provides a conservative and testable geometric perspective on coherence control in open quantum systems.
•Dec 15, 2025•0 citations