{
  "schema": "classical-reconstruction-benchmark/v1",
  "benchmark_id": "quantum-optics-assumption-bounds",
  "version": "1.0.0",
  "ontology_contract_sha256": "b749348b619769f3b4bf2d5e7cd3a50a6b38c9aaad22983846c893dab09b8d24",
  "observables": [
    {"id":"g2_zero","definition":"normalized second-order coincidence statistic at zero delay","units":"dimensionless"},
    {"id":"hom_visibility","definition":"(C_far-C_zero)/C_far","units":"dimensionless"}
  ],
  "sources": [
    {"id":"paul1982","doi":"10.1103/RevModPhys.54.1061","role":"antibunching nonclassicality under standard photodetection"},
    {"id":"sadana2019","doi":"10.1103/PhysRevA.100.013839","role":"phase-controlled classical HOM-like interference beyond 50 percent"},
    {"id":"kashi2021","doi":"10.1002/lpor.202000464","role":"HOM visibility benchmark for independent sources"}
  ],
  "model_classes": [
    {"id":"positive-intensity-standard-detection","assumptions":["stationary nonnegative classical intensity","coincidence rate proportional to intensity product"],"bound":"g2(0)>=1"},
    {"id":"independent-random-phase-weak-coherent-hom","assumptions":["independent weak coherent inputs","random relative phase","standard coincidence detection"],"bound":"HOM visibility<=0.5"},
    {"id":"phase-correlated-classical-hom","assumptions":["controlled relative phase","classical coherent pulses"],"bound":"0.5 is not a universal ceiling; high HOM-like visibility is allowed"}
  ],
  "tolerances": {"bound_epsilon":1e-12},
  "q1_q5": {"Q1":"wave/interference mechanisms are classical; detector event statistics remain model-class dependent","Q2":"assumption-specific bounds mechanically checked","Q3":"standard positive-intensity class fails antibunching; other detector dynamics remain testable","Q4":"open","Q5":"not earned"},
  "scope_exclusion": "This manifest records conditional bounds. It does not infer propagation ontology from detector events and does not treat the 50 percent HOM benchmark as universal."
}