{
  "schema": "classical-reconstruction-hom-applicability/v1",
  "status": "NOT_YET_APPLICABLE",
  "experiment": {
    "source": "Carosini et al., Optica Quantum 4 (2026), DOI 10.1364/OPTICAQ.579657",
    "configuration": "same modular analyzer; HBT at HWP 0 deg, HOM at HWP 22.5 deg; SNSPD detection",
    "measured_visibility_pre": 0.9297725704983093,
    "measured_visibility_post": 0.9271977726657064
  },
  "hbt_candidate_frozen_parameters": {
    "background_to_signal": 0.32,
    "threshold": 1.45,
    "noise": 0.16
  },
  "missing_dynamics": [
    "No explicit field transfer matrix has been specified for the HWP/PBS/delay network in terms of the candidate fields.",
    "The HBT candidate supplies random relative phase at one splitter but no time-separated pulse coherence law for the HOM arms.",
    "Detector threshold/noise parameters are uncalibrated, and no rule has been derived for how the delayed pulses jointly drive each detector.",
    "The observed HOM visibility cannot be predicted from the HBT scalar g2 scale alone."
  ],
  "decision": "Do not transfer the HBT scalar fit into HOM by substitution. A HOM prediction requires an explicit source coherence process, optical-network transformation, path delay/overlap model and detector response. Until those exist, fitting the measured visibility would be target laundering.",
  "scope_exclusion": "The raw HOM normalization is GREEN as a data transformation. The current classical HBT mechanism is neither confirmed nor falsified by HOM because it is not yet a well-posed HOM model."
}