{"paper":{"title":"Simulation-guided design of an integrated photonic cavity for frequency-multiplexed Spontaneous Parametric Down Conversion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"An integrated photonic racetrack resonator is simulated to support 90 doubly resonant SPDC frequency-mode pairs with an effective Schmidt number of 89.62.","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Benjamin Szamosfalvi, CJ Xin, Jarrett Nelson, Leticia Magalhaes, Marko Lon\\v{c}ar, Michael Raymer, Ryan M. Camacho","submitted_at":"2026-05-04T20:01:20Z","abstract_excerpt":"Frequency-multiplexed entangled photon pair sources with narrow bandwidths and high pair generation efficiency are a key enabling technology for quantum networking. We present a simulation-based design study of an integrated photonic racetrack resonator source for spontaneous parametric down-conversion (SPDC) that simultaneously achieves all three properties. The central result is a simulated set of 90 doubly resonant signal/idler frequency-mode pairs with an effective Schmidt number of 89.62, average bandwidths of 1.08 GHz, a mean free spectral range of 51.9 GHz, and a total internal pair-gen"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The central result is a simulated set of 90 doubly resonant signal/idler frequency-mode pairs with an effective Schmidt number of 89.62, average bandwidths of 1.08 GHz, a mean free spectral range of 51.9 GHz, and a total internal pair-generation-rate efficiency of 1.16 GHz/mW.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the classical electromagnetic simulations and the extended quantization formalism accurately capture real-device quantum behavior without unmodeled losses, fabrication imperfections, or deviations from the assumed nonlinear cavity parameters.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A simulated racetrack resonator design yields 90 doubly resonant frequency-mode pairs for SPDC with 1.08 GHz average bandwidth, 51.9 GHz mean FSR, and 1.16 GHz/mW pair generation efficiency.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"An integrated photonic racetrack resonator is simulated to support 90 doubly resonant SPDC frequency-mode pairs with an effective Schmidt number of 89.62.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"b219ab9ef66c1fdcb8e7991ea13c8279b88260902079c53d0fe14858ca4943a1"},"source":{"id":"2605.03121","kind":"arxiv","version":2},"verdict":{"id":"98d2ec39-f773-4722-8b89-5ac595cd916a","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-08T18:26:46.905352Z","strongest_claim":"The central result is a simulated set of 90 doubly resonant signal/idler frequency-mode pairs with an effective Schmidt number of 89.62, average bandwidths of 1.08 GHz, a mean free spectral range of 51.9 GHz, and a total internal pair-generation-rate efficiency of 1.16 GHz/mW.","one_line_summary":"A simulated racetrack resonator design yields 90 doubly resonant frequency-mode pairs for SPDC with 1.08 GHz average bandwidth, 51.9 GHz mean FSR, and 1.16 GHz/mW pair generation efficiency.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the classical electromagnetic simulations and the extended quantization formalism accurately capture real-device quantum behavior without unmodeled losses, fabrication imperfections, or deviations from the assumed nonlinear cavity parameters.","pith_extraction_headline":"An integrated photonic racetrack resonator is simulated to support 90 doubly resonant SPDC frequency-mode pairs with an effective Schmidt number of 89.62."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.03121/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_compliance","ran_at":"2026-05-19T15:42:55.258921Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"49887bd3d7e6d7cbb0e6d1d27cc683942db0d560b06b4c2383f3f8f1d6e653f2"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"ee558e80f1f01f8f48c68c9962c55c442c3be2655c6d9a2035d6c8e5a0ae41dc"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}