{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:5SCPL7MKXFLAFBV4ND3SQM5ZVQ","short_pith_number":"pith:5SCPL7MK","schema_version":"1.0","canonical_sha256":"ec84f5fd8ab9560286bc68f72833b9ac0e927f2719c0e8fb6f50d9297b595363","source":{"kind":"arxiv","id":"2302.00940","version":2},"attestation_state":"computed","paper":{"title":"Unconditional and robust quantum metrological advantage beyond NOON states","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Chao-Yang Lu, Dian Wu, Han-Sen Zhong, Hao Su, Hua-Liang Liu, Hui Wang, Jia-Min Xu, Jian Qin, Jian-Wei Pan, Li-Chao Peng, Li Li, Ming-Cheng Chen, Nai-Le Liu, Si-Qiu Gong, Yi-Han Luo, Yu-Hao Deng","submitted_at":"2023-02-02T08:30:06Z","abstract_excerpt":"Quantum metrology employs quantum resources to enhance the measurement sensitivity beyond that can be achieved classically. While multi-photon entangled NOON states can in principle beat the shot-noise limit and reach the Heisenberg limit, high NOON states are difficult to prepare and fragile to photon loss which hinders it from reaching unconditional quantum metrological advantages. Here, we combine the idea of unconventional nonlinear interferometers and stimulated emission of squeezed light, previously developed for photonic quantum computer Jiuzhang, to propose and realize a new scheme tha"},"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":"2302.00940","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-02-02T08:30:06Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"90cbdeae3ee12dc66d550461b25685743bdb76c4af962ac1f2c664e0e9599959","abstract_canon_sha256":"2fbabde184c3fad02f7896a6f0edcdc9d6f927015e067428ce6e70f3c770d0eb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:46:36.994024Z","signature_b64":"MmM21U8hMP7kcNVSvRL9nMVj3cEWdKHZt8WudlOELksZ4zrpMKTkWu3eG62siw3FPRJ7KjKT/W/7t5LpRAxeBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec84f5fd8ab9560286bc68f72833b9ac0e927f2719c0e8fb6f50d9297b595363","last_reissued_at":"2026-07-05T05:46:36.993662Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:46:36.993662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Unconditional and robust quantum metrological advantage beyond NOON states","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Chao-Yang Lu, Dian Wu, Han-Sen Zhong, Hao Su, Hua-Liang Liu, Hui Wang, Jia-Min Xu, Jian Qin, Jian-Wei Pan, Li-Chao Peng, Li Li, Ming-Cheng Chen, Nai-Le Liu, Si-Qiu Gong, Yi-Han Luo, Yu-Hao Deng","submitted_at":"2023-02-02T08:30:06Z","abstract_excerpt":"Quantum metrology employs quantum resources to enhance the measurement sensitivity beyond that can be achieved classically. While multi-photon entangled NOON states can in principle beat the shot-noise limit and reach the Heisenberg limit, high NOON states are difficult to prepare and fragile to photon loss which hinders it from reaching unconditional quantum metrological advantages. Here, we combine the idea of unconventional nonlinear interferometers and stimulated emission of squeezed light, previously developed for photonic quantum computer Jiuzhang, to propose and realize a new scheme tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.00940","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.00940/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":"2302.00940","created_at":"2026-07-05T05:46:36.993719+00:00"},{"alias_kind":"arxiv_version","alias_value":"2302.00940v2","created_at":"2026-07-05T05:46:36.993719+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.00940","created_at":"2026-07-05T05:46:36.993719+00:00"},{"alias_kind":"pith_short_12","alias_value":"5SCPL7MKXFLA","created_at":"2026-07-05T05:46:36.993719+00:00"},{"alias_kind":"pith_short_16","alias_value":"5SCPL7MKXFLAFBV4","created_at":"2026-07-05T05:46:36.993719+00:00"},{"alias_kind":"pith_short_8","alias_value":"5SCPL7MK","created_at":"2026-07-05T05:46:36.993719+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/5SCPL7MKXFLAFBV4ND3SQM5ZVQ","json":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ.json","graph_json":"https://pith.science/api/pith-number/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/graph.json","events_json":"https://pith.science/api/pith-number/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/events.json","paper":"https://pith.science/paper/5SCPL7MK"},"agent_actions":{"view_html":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ","download_json":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ.json","view_paper":"https://pith.science/paper/5SCPL7MK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2302.00940&json=true","fetch_graph":"https://pith.science/api/pith-number/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/graph.json","fetch_events":"https://pith.science/api/pith-number/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/action/storage_attestation","attest_author":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/action/author_attestation","sign_citation":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/action/citation_signature","submit_replication":"https://pith.science/pith/5SCPL7MKXFLAFBV4ND3SQM5ZVQ/action/replication_record"}},"created_at":"2026-07-05T05:46:36.993719+00:00","updated_at":"2026-07-05T05:46:36.993719+00:00"}