{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:YTNKV6WMWC7PQUME3YUZKMJFVY","short_pith_number":"pith:YTNKV6WM","schema_version":"1.0","canonical_sha256":"c4daaafaccb0bef85184de29953125ae1a54df81a393cba2b1e24acb48cca4ce","source":{"kind":"arxiv","id":"2305.02926","version":4},"attestation_state":"computed","paper":{"title":"Repetitive readout and real-time control of nuclear spin qubits in $^{171}$Yb atoms","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Jacob P. Covey, Lintao Li, Neville Chen, William Huie, Won Kyu Calvin Sun, Xiye Hu, Zhubing Jia","submitted_at":"2023-05-04T15:28:45Z","abstract_excerpt":"We demonstrate high fidelity repetitive projective measurements of nuclear spin qubits in an array of neutral ytterbium-171 ($^{171}$Yb) atoms. We show that the qubit state can be measured with a fidelity of 0.995(4) under a condition that leaves it in the state corresponding to the measurement outcome with a probability of 0.993(6) for a single tweezer and 0.981(4) averaged over the array. This is accomplished by near-perfect cyclicity of one of the nuclear spin qubit states with an optically excited state under a magnetic field of $B=58$ G, resulting in a bright/dark contrast of $\\approx10^5"},"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":"2305.02926","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-04T15:28:45Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"e23460c76abef23a32fef32d493a611f93a5276e0697defe5136f8ecd76f0f4e","abstract_canon_sha256":"b25bce77721e34c46d5ba722d88099869745b79af5680c7d6baf5a1ef1835f5a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:52:04.244564Z","signature_b64":"bc0hb3JhEZtBYacFJEWNZzwd6IcyXlFzq2lbFEU9p3WTMNa/26G0+FuADQlViyinoqxN/Gzj+OrIcTMObwXzDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4daaafaccb0bef85184de29953125ae1a54df81a393cba2b1e24acb48cca4ce","last_reissued_at":"2026-07-05T06:52:04.244069Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:52:04.244069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Repetitive readout and real-time control of nuclear spin qubits in $^{171}$Yb atoms","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Jacob P. Covey, Lintao Li, Neville Chen, William Huie, Won Kyu Calvin Sun, Xiye Hu, Zhubing Jia","submitted_at":"2023-05-04T15:28:45Z","abstract_excerpt":"We demonstrate high fidelity repetitive projective measurements of nuclear spin qubits in an array of neutral ytterbium-171 ($^{171}$Yb) atoms. We show that the qubit state can be measured with a fidelity of 0.995(4) under a condition that leaves it in the state corresponding to the measurement outcome with a probability of 0.993(6) for a single tweezer and 0.981(4) averaged over the array. This is accomplished by near-perfect cyclicity of one of the nuclear spin qubit states with an optically excited state under a magnetic field of $B=58$ G, resulting in a bright/dark contrast of $\\approx10^5"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.02926","kind":"arxiv","version":4},"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/2305.02926/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":"2305.02926","created_at":"2026-07-05T06:52:04.244123+00:00"},{"alias_kind":"arxiv_version","alias_value":"2305.02926v4","created_at":"2026-07-05T06:52:04.244123+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.02926","created_at":"2026-07-05T06:52:04.244123+00:00"},{"alias_kind":"pith_short_12","alias_value":"YTNKV6WMWC7P","created_at":"2026-07-05T06:52:04.244123+00:00"},{"alias_kind":"pith_short_16","alias_value":"YTNKV6WMWC7PQUME","created_at":"2026-07-05T06:52:04.244123+00:00"},{"alias_kind":"pith_short_8","alias_value":"YTNKV6WM","created_at":"2026-07-05T06:52:04.244123+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/YTNKV6WMWC7PQUME3YUZKMJFVY","json":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY.json","graph_json":"https://pith.science/api/pith-number/YTNKV6WMWC7PQUME3YUZKMJFVY/graph.json","events_json":"https://pith.science/api/pith-number/YTNKV6WMWC7PQUME3YUZKMJFVY/events.json","paper":"https://pith.science/paper/YTNKV6WM"},"agent_actions":{"view_html":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY","download_json":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY.json","view_paper":"https://pith.science/paper/YTNKV6WM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2305.02926&json=true","fetch_graph":"https://pith.science/api/pith-number/YTNKV6WMWC7PQUME3YUZKMJFVY/graph.json","fetch_events":"https://pith.science/api/pith-number/YTNKV6WMWC7PQUME3YUZKMJFVY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY/action/storage_attestation","attest_author":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY/action/author_attestation","sign_citation":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY/action/citation_signature","submit_replication":"https://pith.science/pith/YTNKV6WMWC7PQUME3YUZKMJFVY/action/replication_record"}},"created_at":"2026-07-05T06:52:04.244123+00:00","updated_at":"2026-07-05T06:52:04.244123+00:00"}