Drive Structure Shapes Cascade Activation in a Quantum Optomechanical Chain: A Pre-registered V→L→M Study (CIIL v8)

The record contains the complete CIIL v8 pre-registered computational study, “Drive Structure Shapes Cascade Activation in a Quantum Optomechanical Chain: A Pre-registered V→L→M Study.” The study tests whether temporally structured mechanical drive protocols produce distinguishable downstream cascade signatures in a single-mode quantum optomechanical system parameterised after the Teufel et al. aluminium drumhead experiment. The CIIL framework decomposes the simulated dynamics into vibrational drive, cavity photon occupation, and a dynamical-Casimir-emission proxy, then evaluates nine pre-registered predictions using KILT burden metrics, M-stage onset ratios, structural null models, adversarial surrogates, flow-projection anisotropy, event ordering, temporal asymmetry, and Cascade Field Tomography. The locked run produced a mixed but informative result: four of nine pre-registered predictions passed, including detectable KILT burden, strong M-stage onset amplification, positive spectral-response/burden correlation, and decoupled-null survival. Five predictions failed, including corrected flow-projection anisotropy, seed-level reproducibility, predicted event ordering, and temporal asymmetry. These failures constrain the parameter regime rather than invalidating the run, indicating that the tested Teufel C0 = 100 operating point lies near a cascade boundary rather than deep within a fully directional cascade regime. The deposit includes the locked CIIL v8 simulation code, pre-registration record, paper manuscript, figures, report outputs, manifest files, environment record, observables table, null-count and failure-condition summaries, Cascade Field Tomography outputs, block-contribution tables, null-shadow time series, transition-event tables, and trajectory latent data. Together, these files provide a reproducible record of the full analysis pipeline, the locked prediction criteria, the simulation outputs, and the final pass/fail verdicts. The DCE quantity reported here is a chain-product activation proxy, not a direct measurement of real photon-pair production.