{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:O2X5YZ4KTGNDWZ5EKNB5UOXZJC","short_pith_number":"pith:O2X5YZ4K","schema_version":"1.0","canonical_sha256":"76afdc678a999a3b67a45343da3af948b34b6843bdc5b5d5b0a2adea1f7d1271","source":{"kind":"arxiv","id":"1501.01067","version":2},"attestation_state":"computed","paper":{"title":"Linear Optical Quantum Metrology with Single Photons: Exploiting Spontaneously Generated Entanglement to Beat the Shot-Noise Limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Evan J. Rabeaux, Jonathan P. Dowling, Jonathan P. Olson, Keith R. Motes, Peter P. Rohde, S. Jay Olson","submitted_at":"2015-01-06T03:04:00Z","abstract_excerpt":"Quantum number-path entanglement is a resource for super-sensitive quantum metrology and in particular provides for sub-shotnoise or even Heisenberg-limited sensitivity. However, such number-path entanglement has thought to have been resource intensive to create in the first place --- typically requiring either very strong nonlinearities, or nondeterministic preparation schemes with feed-forward, which are difficult to implement. Very recently, arising from the study of quantum random walks with multi-photon walkers, as well as the study of the computational complexity of passive linear optica"},"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":"1501.01067","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-06T03:04:00Z","cross_cats_sorted":[],"title_canon_sha256":"fe35b272862c61ec9f53ff38fb04317a323b7de16faa93e84e39e34362226b89","abstract_canon_sha256":"74a37544f26d2e22fecdb17672e651cb58d7278563835f03b4110bd23d04acc9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:11.405418Z","signature_b64":"fzym7990CGt44VRGT/KshL+DetKOe1RBHB2ilkcAgiT8jNlF7tw5RF9WWoA5MiEGlOz5+fWYSTFBzL9UbZ+fDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76afdc678a999a3b67a45343da3af948b34b6843bdc5b5d5b0a2adea1f7d1271","last_reissued_at":"2026-05-18T02:17:11.404626Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:11.404626Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Linear Optical Quantum Metrology with Single Photons: Exploiting Spontaneously Generated Entanglement to Beat the Shot-Noise Limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Evan J. Rabeaux, Jonathan P. Dowling, Jonathan P. Olson, Keith R. Motes, Peter P. Rohde, S. Jay Olson","submitted_at":"2015-01-06T03:04:00Z","abstract_excerpt":"Quantum number-path entanglement is a resource for super-sensitive quantum metrology and in particular provides for sub-shotnoise or even Heisenberg-limited sensitivity. However, such number-path entanglement has thought to have been resource intensive to create in the first place --- typically requiring either very strong nonlinearities, or nondeterministic preparation schemes with feed-forward, which are difficult to implement. Very recently, arising from the study of quantum random walks with multi-photon walkers, as well as the study of the computational complexity of passive linear optica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.01067","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":"1501.01067","created_at":"2026-05-18T02:17:11.404754+00:00"},{"alias_kind":"arxiv_version","alias_value":"1501.01067v2","created_at":"2026-05-18T02:17:11.404754+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.01067","created_at":"2026-05-18T02:17:11.404754+00:00"},{"alias_kind":"pith_short_12","alias_value":"O2X5YZ4KTGND","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_16","alias_value":"O2X5YZ4KTGNDWZ5E","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_8","alias_value":"O2X5YZ4K","created_at":"2026-05-18T12:29:34.919912+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/O2X5YZ4KTGNDWZ5EKNB5UOXZJC","json":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC.json","graph_json":"https://pith.science/api/pith-number/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/graph.json","events_json":"https://pith.science/api/pith-number/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/events.json","paper":"https://pith.science/paper/O2X5YZ4K"},"agent_actions":{"view_html":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC","download_json":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC.json","view_paper":"https://pith.science/paper/O2X5YZ4K","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1501.01067&json=true","fetch_graph":"https://pith.science/api/pith-number/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/graph.json","fetch_events":"https://pith.science/api/pith-number/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/action/storage_attestation","attest_author":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/action/author_attestation","sign_citation":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/action/citation_signature","submit_replication":"https://pith.science/pith/O2X5YZ4KTGNDWZ5EKNB5UOXZJC/action/replication_record"}},"created_at":"2026-05-18T02:17:11.404754+00:00","updated_at":"2026-05-18T02:17:11.404754+00:00"}