{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:VBYNA2GHKPKZEJJTJ7BDBJLLF3","short_pith_number":"pith:VBYNA2GH","schema_version":"1.0","canonical_sha256":"a870d068c753d59225334fc230a56b2ec0f6dc95f8a4f1970c30ae47211edbcf","source":{"kind":"arxiv","id":"2607.13422","version":1},"attestation_state":"computed","paper":{"title":"Suppressing Detuning-Induced Bias in Ramsey Magnetometry with Composite Pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Kento Nawata, Shingo Kukita, Yuichiro Matsuzaki","submitted_at":"2026-07-15T03:50:24Z","abstract_excerpt":"Quantum sensing estimates a physical parameter encoded in the state of a probe; with independent spin probes the precision follows the standard quantum limit. Studies of sensing precision often assume that the parameters entering the model, such as the noise, are known. In practice these parameters are not always known, and a mismatch between the assumed and actual values induces a systematic error. Here we study single-qubit Ramsey magnetometry of a DC magnetic field under an unknown detuning between the actual and nominal spin frequencies: A first pulse puts the qubit into a superposition of"},"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":"2607.13422","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-15T03:50:24Z","cross_cats_sorted":[],"title_canon_sha256":"d499644ce69a329c39c728455e0201c52e402e1e0da8d8c6300d5179d0c14882","abstract_canon_sha256":"d8266604d21f8599d00f5c26477ef397f5c27349d3bf7ba3bb5cdc7545314707"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-16T00:22:17.201637Z","signature_b64":"nB1HNx7+VJ1Dc2aaG8n+UaFzCXsDfHga5i6vN5He3WYdQulB0tvzV29qG4HWZRzuywKotDHphua7gLvLe/V6Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a870d068c753d59225334fc230a56b2ec0f6dc95f8a4f1970c30ae47211edbcf","last_reissued_at":"2026-07-16T00:22:17.200825Z","signature_status":"signed_v1","first_computed_at":"2026-07-16T00:22:17.200825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Suppressing Detuning-Induced Bias in Ramsey Magnetometry with Composite Pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Kento Nawata, Shingo Kukita, Yuichiro Matsuzaki","submitted_at":"2026-07-15T03:50:24Z","abstract_excerpt":"Quantum sensing estimates a physical parameter encoded in the state of a probe; with independent spin probes the precision follows the standard quantum limit. Studies of sensing precision often assume that the parameters entering the model, such as the noise, are known. In practice these parameters are not always known, and a mismatch between the assumed and actual values induces a systematic error. Here we study single-qubit Ramsey magnetometry of a DC magnetic field under an unknown detuning between the actual and nominal spin frequencies: A first pulse puts the qubit into a superposition of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13422","kind":"arxiv","version":1},"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/2607.13422/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":"2607.13422","created_at":"2026-07-16T00:22:17.201250+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.13422v1","created_at":"2026-07-16T00:22:17.201250+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13422","created_at":"2026-07-16T00:22:17.201250+00:00"},{"alias_kind":"pith_short_12","alias_value":"VBYNA2GHKPKZ","created_at":"2026-07-16T00:22:17.201250+00:00"},{"alias_kind":"pith_short_16","alias_value":"VBYNA2GHKPKZEJJT","created_at":"2026-07-16T00:22:17.201250+00:00"},{"alias_kind":"pith_short_8","alias_value":"VBYNA2GH","created_at":"2026-07-16T00:22:17.201250+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/VBYNA2GHKPKZEJJTJ7BDBJLLF3","json":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3.json","graph_json":"https://pith.science/api/pith-number/VBYNA2GHKPKZEJJTJ7BDBJLLF3/graph.json","events_json":"https://pith.science/api/pith-number/VBYNA2GHKPKZEJJTJ7BDBJLLF3/events.json","paper":"https://pith.science/paper/VBYNA2GH"},"agent_actions":{"view_html":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3","download_json":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3.json","view_paper":"https://pith.science/paper/VBYNA2GH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.13422&json=true","fetch_graph":"https://pith.science/api/pith-number/VBYNA2GHKPKZEJJTJ7BDBJLLF3/graph.json","fetch_events":"https://pith.science/api/pith-number/VBYNA2GHKPKZEJJTJ7BDBJLLF3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3/action/storage_attestation","attest_author":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3/action/author_attestation","sign_citation":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3/action/citation_signature","submit_replication":"https://pith.science/pith/VBYNA2GHKPKZEJJTJ7BDBJLLF3/action/replication_record"}},"created_at":"2026-07-16T00:22:17.201250+00:00","updated_at":"2026-07-16T00:22:17.201250+00:00"}