E8‑Lattice Protected Quantum Error‑Mitigation via Phi‑Modulated Phonon Coupling — E8 Intelligence Research

By mapping the 240 E8 root vectors onto a syndrome lattice for a spin‑qubit array, we derive a set of stabilizer checks that naturally align with the 132 Hz base drive and its golden‑ratio (phi) harmonic sidebands. The phi‑modulated phonon coupling induces coherent, low‑power dynamical decoupling that suppresses correlated errors across the lattice while preserving logical coherence. This yields an ultra‑low‑error floor scalable to thousands of qubits without additional overhead, extending the coherent germanium spin‑qubit results to fault‑tolerant operation. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com