{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:GVUCQC6GDRB53NYUNOMZP73EXT","short_pith_number":"pith:GVUCQC6G","schema_version":"1.0","canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","source":{"kind":"arxiv","id":"1108.1829","version":2},"attestation_state":"computed","paper":{"title":"Quantum Nonlocality in Weak-Thermal-Light Interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Mankei Tsang","submitted_at":"2011-08-08T23:51:00Z","abstract_excerpt":"In astronomy, interferometry of light collected by separate telescopes is often performed by physically bringing the optical paths together in the form of Young's double-slit experiment. Optical loss severely limits the efficiency of this so-called direct detection method, motivating the fundamental question of whether one can achieve a comparable performance using separate optical measurements at the two telescopes before combining the measurement results. Using quantum mechanics and estimation theory, here I show that any such spatially local measurement scheme, such as heterodyne detection,"},"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":"1108.1829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-08-08T23:51:00Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f1a35ce70a03233ee957cbf2acfb0742c813d3d8eae7b237e622c4cb4e878d18","abstract_canon_sha256":"924c135ebe35fec96286231f3771e3e97e071a9b15604b8b35c8201e2d0b6695"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:05:38.461814Z","signature_b64":"FnDoSQb/Xk84NAGgYDKXjX/f28bqVn2d7S8qeDrq2ku44OxBwMTGhnpj1GC8A1JiTJqiTUOkrfoUYt4/qrGnBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","last_reissued_at":"2026-05-18T04:05:38.461418Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:05:38.461418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Nonlocality in Weak-Thermal-Light Interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Mankei Tsang","submitted_at":"2011-08-08T23:51:00Z","abstract_excerpt":"In astronomy, interferometry of light collected by separate telescopes is often performed by physically bringing the optical paths together in the form of Young's double-slit experiment. Optical loss severely limits the efficiency of this so-called direct detection method, motivating the fundamental question of whether one can achieve a comparable performance using separate optical measurements at the two telescopes before combining the measurement results. Using quantum mechanics and estimation theory, here I show that any such spatially local measurement scheme, such as heterodyne detection,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.1829","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1108.1829","created_at":"2026-05-18T04:05:38.461482+00:00"},{"alias_kind":"arxiv_version","alias_value":"1108.1829v2","created_at":"2026-05-18T04:05:38.461482+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.1829","created_at":"2026-05-18T04:05:38.461482+00:00"},{"alias_kind":"pith_short_12","alias_value":"GVUCQC6GDRB5","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_16","alias_value":"GVUCQC6GDRB53NYU","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_8","alias_value":"GVUCQC6G","created_at":"2026-05-18T12:26:30.835961+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/GVUCQC6GDRB53NYUNOMZP73EXT","json":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT.json","graph_json":"https://pith.science/api/pith-number/GVUCQC6GDRB53NYUNOMZP73EXT/graph.json","events_json":"https://pith.science/api/pith-number/GVUCQC6GDRB53NYUNOMZP73EXT/events.json","paper":"https://pith.science/paper/GVUCQC6G"},"agent_actions":{"view_html":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT","download_json":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT.json","view_paper":"https://pith.science/paper/GVUCQC6G","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1108.1829&json=true","fetch_graph":"https://pith.science/api/pith-number/GVUCQC6GDRB53NYUNOMZP73EXT/graph.json","fetch_events":"https://pith.science/api/pith-number/GVUCQC6GDRB53NYUNOMZP73EXT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/action/storage_attestation","attest_author":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/action/author_attestation","sign_citation":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/action/citation_signature","submit_replication":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/action/replication_record"}},"created_at":"2026-05-18T04:05:38.461482+00:00","updated_at":"2026-05-18T04:05:38.461482+00:00"}