{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:BMMYWHO5EPTBCZFCXTIIAZN6BG","short_pith_number":"pith:BMMYWHO5","schema_version":"1.0","canonical_sha256":"0b198b1ddd23e61164a2bcd08065be098039ab00cc8979cfef178541e8b1288a","source":{"kind":"arxiv","id":"1805.00712","version":2},"attestation_state":"computed","paper":{"title":"Quantum metrology with one-dimensional superradiant photonic states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Gonz\\'alez-Tudela, J. I. Cirac, M. Perarnau-Llobet, V. Paulisch","submitted_at":"2018-05-02T10:27:51Z","abstract_excerpt":"Photonic states with large and fixed photon numbers, such as Fock states, enable quantum-enhanced metrology but remain an experimentally elusive resource. A potentially simple, deterministic and scalable way to generate these states consists of fully exciting $N$ quantum emitters equally coupled to a common photonic reservoir, which leads to a collective decay known as Dicke superradiance. The emitted $N$-photon state turns out to be a highly entangled multimode state, and to characterise its metrological properties in this work we: (i) develop theoretical tools to compute the Quantum Fisher I"},"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":"1805.00712","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-05-02T10:27:51Z","cross_cats_sorted":[],"title_canon_sha256":"139f23f29b523889a63241a8e98d7e76eb43c88efd570b6aa8825b8c6fb2ab01","abstract_canon_sha256":"d3697771228acc52123f3b9c59c54c5b5658f4f0c2160a789cbbd8406717052b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:34.198234Z","signature_b64":"Sxknv9aaBDOwtV5nCy8cMNrxvZ9Lz9ZQiATKYVfRU4fLKbniW3Zp4STz5NVviyqmf7X0Cfs35inM045Wtq7uDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b198b1ddd23e61164a2bcd08065be098039ab00cc8979cfef178541e8b1288a","last_reissued_at":"2026-05-17T23:48:34.197812Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:34.197812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum metrology with one-dimensional superradiant photonic states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Gonz\\'alez-Tudela, J. I. Cirac, M. Perarnau-Llobet, V. Paulisch","submitted_at":"2018-05-02T10:27:51Z","abstract_excerpt":"Photonic states with large and fixed photon numbers, such as Fock states, enable quantum-enhanced metrology but remain an experimentally elusive resource. A potentially simple, deterministic and scalable way to generate these states consists of fully exciting $N$ quantum emitters equally coupled to a common photonic reservoir, which leads to a collective decay known as Dicke superradiance. The emitted $N$-photon state turns out to be a highly entangled multimode state, and to characterise its metrological properties in this work we: (i) develop theoretical tools to compute the Quantum Fisher I"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.00712","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":"1805.00712","created_at":"2026-05-17T23:48:34.197875+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.00712v2","created_at":"2026-05-17T23:48:34.197875+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.00712","created_at":"2026-05-17T23:48:34.197875+00:00"},{"alias_kind":"pith_short_12","alias_value":"BMMYWHO5EPTB","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_16","alias_value":"BMMYWHO5EPTBCZFC","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_8","alias_value":"BMMYWHO5","created_at":"2026-05-18T12:32:16.446611+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/BMMYWHO5EPTBCZFCXTIIAZN6BG","json":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG.json","graph_json":"https://pith.science/api/pith-number/BMMYWHO5EPTBCZFCXTIIAZN6BG/graph.json","events_json":"https://pith.science/api/pith-number/BMMYWHO5EPTBCZFCXTIIAZN6BG/events.json","paper":"https://pith.science/paper/BMMYWHO5"},"agent_actions":{"view_html":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG","download_json":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG.json","view_paper":"https://pith.science/paper/BMMYWHO5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.00712&json=true","fetch_graph":"https://pith.science/api/pith-number/BMMYWHO5EPTBCZFCXTIIAZN6BG/graph.json","fetch_events":"https://pith.science/api/pith-number/BMMYWHO5EPTBCZFCXTIIAZN6BG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG/action/storage_attestation","attest_author":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG/action/author_attestation","sign_citation":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG/action/citation_signature","submit_replication":"https://pith.science/pith/BMMYWHO5EPTBCZFCXTIIAZN6BG/action/replication_record"}},"created_at":"2026-05-17T23:48:34.197875+00:00","updated_at":"2026-05-17T23:48:34.197875+00:00"}