Boundary-Induced Spectral Proliferation in Bulk Moiré Metals: A Structural Analogue Note

Recent high-field quantum oscillation measurements of bulk moiré metals (Nuckolls et al., arXiv:2510.26880) reveal more than 40 distinct extremal Fermi surface cross-sections arising from incommensurate lattice mismatch, interpreted via higher-dimensional superspace crystallography. This note isolates the transferable abstract mechanism — geometric boundary constraint → coherent bulk modulation → spectral proliferation — and evaluates it under the TRIDENT/USDOP v1.2 governance protocol. Gate assessment: G1 PASS, G2 PASS, G3 PASS, G4 PASS (domain-specific; does not transfer to any other corpus node). The analogy to the boundary-first analytical framework is structural only; no mechanism is imported across domains. This note does not claim original materials discovery. It records a condensed-matter existence proof for boundary-driven spectral restructuring and states its limits explicitly. Keywordsmoiré metals · incommensurate lattice · Fermi surface · quantum oscillations · superspace crystallography · boundary geometry · spectral proliferation · TRIDENT · analogue note · condensed matter References K. P. Nuckolls et al., “Higher-dimensional Fermiology in bulk moiré metals,” arXiv:2510.26880 (2025) URL: https://arxiv.org/abs/2510.26880