{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:BM5REKLLODHLH6NVSBG22WM4GO","short_pith_number":"pith:BM5REKLL","schema_version":"1.0","canonical_sha256":"0b3b12296b70ceb3f9b5904dad599c33ab161a15c3fe0f20c1d675a070d0a5db","source":{"kind":"arxiv","id":"2310.04293","version":1},"attestation_state":"computed","paper":{"title":"Measurement of ultrashort bi-photon correlation times with an integrated two-colour broadband SU(1,1)-interferometer","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"B. Brecht, C. Eigner, C. Silberhorn, F. Roeder, K.-H. Luo, M. Santandrea, M. Stefszky, R. Pollmann, R. Ricken, V. Quiring","submitted_at":"2023-10-06T14:51:30Z","abstract_excerpt":"The bi-photon correlation time, a measure for the conditional uncertainty in the temporal arrival of two photons from a photon pair source, is a key performance identifier for many quantum spectroscopy applications, with shorter correlation times typically yielding better performance. Furthermore, it provides fundamental insight into the effects of dispersion on the bi-photon state. Here, we retrieve ultrashort bi-photon correlation times of around $100\\,\\mathrm{fs}$ by measuring simultaneously spectral and temporal interferograms at the output of an SU(1,1) interferometer based on an integrat"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2310.04293","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-10-06T14:51:30Z","cross_cats_sorted":[],"title_canon_sha256":"cf06f5bed9364ab88cfb1c94453dc296dff9524566e5a67ab1eae07cfd6ca781","abstract_canon_sha256":"6357f0efa80201925e1bdb04eb4ebe7cb991dd19e8f98938e77462f248eb0a1b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:27:42.597432Z","signature_b64":"LmjtnwbM0qJKCP6Lka4vlasCuiSNwTrrg5AAFhAXen6X1n64xRWZlnZSkRK/DqzZWBQ9Sxbyju+8WPCyWZWRBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b3b12296b70ceb3f9b5904dad599c33ab161a15c3fe0f20c1d675a070d0a5db","last_reissued_at":"2026-07-05T08:27:42.596877Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:27:42.596877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of ultrashort bi-photon correlation times with an integrated two-colour broadband SU(1,1)-interferometer","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"B. Brecht, C. Eigner, C. Silberhorn, F. Roeder, K.-H. Luo, M. Santandrea, M. Stefszky, R. Pollmann, R. Ricken, V. Quiring","submitted_at":"2023-10-06T14:51:30Z","abstract_excerpt":"The bi-photon correlation time, a measure for the conditional uncertainty in the temporal arrival of two photons from a photon pair source, is a key performance identifier for many quantum spectroscopy applications, with shorter correlation times typically yielding better performance. Furthermore, it provides fundamental insight into the effects of dispersion on the bi-photon state. Here, we retrieve ultrashort bi-photon correlation times of around $100\\,\\mathrm{fs}$ by measuring simultaneously spectral and temporal interferograms at the output of an SU(1,1) interferometer based on an integrat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.04293","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2310.04293/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2310.04293","created_at":"2026-07-05T08:27:42.596940+00:00"},{"alias_kind":"arxiv_version","alias_value":"2310.04293v1","created_at":"2026-07-05T08:27:42.596940+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.04293","created_at":"2026-07-05T08:27:42.596940+00:00"},{"alias_kind":"pith_short_12","alias_value":"BM5REKLLODHL","created_at":"2026-07-05T08:27:42.596940+00:00"},{"alias_kind":"pith_short_16","alias_value":"BM5REKLLODHLH6NV","created_at":"2026-07-05T08:27:42.596940+00:00"},{"alias_kind":"pith_short_8","alias_value":"BM5REKLL","created_at":"2026-07-05T08:27:42.596940+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO","json":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO.json","graph_json":"https://pith.science/api/pith-number/BM5REKLLODHLH6NVSBG22WM4GO/graph.json","events_json":"https://pith.science/api/pith-number/BM5REKLLODHLH6NVSBG22WM4GO/events.json","paper":"https://pith.science/paper/BM5REKLL"},"agent_actions":{"view_html":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO","download_json":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO.json","view_paper":"https://pith.science/paper/BM5REKLL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2310.04293&json=true","fetch_graph":"https://pith.science/api/pith-number/BM5REKLLODHLH6NVSBG22WM4GO/graph.json","fetch_events":"https://pith.science/api/pith-number/BM5REKLLODHLH6NVSBG22WM4GO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO/action/storage_attestation","attest_author":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO/action/author_attestation","sign_citation":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO/action/citation_signature","submit_replication":"https://pith.science/pith/BM5REKLLODHLH6NVSBG22WM4GO/action/replication_record"}},"created_at":"2026-07-05T08:27:42.596940+00:00","updated_at":"2026-07-05T08:27:42.596940+00:00"}