Topological Phononics in Transition Metal Dichalcogenide Moiré Superlattices with Verifiable Anomalous Acoustic Resonances-基于TMD摩尔超晶格的拓扑声子学与可验证的异常声学共振

This paper extends the Topological Phononics framework to the transition metal dichalcogenide (TMD) moirésuperlattice system. Based on the spin-valley-locked flat bands described by the Wu–Das Sarma continuummodel, we demonstrate that strong electron–moiré-phonon coupling in TMD moiré superlattices engenders anovel topological collective excitation — the Spin-Valley-Locked Moiré-Phonon Topological Polaron (SV-MPTP). In comparison with the MPTP in twisted bilayer graphene, the strong spin-orbit coupling and layerpseudospin degrees of freedom in TMD systems provide the topological soliton with additional intrinsic quantumnumbers, rendering its non-Abelian statistics operable in a larger Hilbert space. We rigorously define thetopological charge and homotopy-group classification of the SV-MPTP, and provide three independent, falsifiableexperimental predictions: (1) a giant nonlinear acoustic resonance peak described by a quantised Duffing equationwith a well-defined power threshold and frequency hysteresis; (2) an acoustic frequency comb whose sidebandspacing is proportional to the SV-MPTP topological charge; (3) spin-valley-selective anomalous linewidthnarrowing in unconventional temperature regimes. All experimental verification protocols employ existing,mature, commercially available equipment. Confirmation of the SV-MPTP would provide a clear acousticallycontrolled pathway towards room-temperature superconductivity and room-temperature topological quantumcomputing using TMD moiré superlattices.