{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:TKX27KE2VUHSICIDZNV3YFOL3S","short_pith_number":"pith:TKX27KE2","schema_version":"1.0","canonical_sha256":"9aafafa89aad0f240903cb6bbc15cbdc8eb5b8b99d4969f4237ec91ae89a0d60","source":{"kind":"arxiv","id":"2606.18443","version":1},"attestation_state":"computed","paper":{"title":"Noncyclic geometric phase in three-level Ramsey interferometry for enhanced metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Yaxin Li, Zhifan Zhou","submitted_at":"2026-06-16T19:48:45Z","abstract_excerpt":"In a standard two-level Ramsey interferometer, the measured phase accumulates linearly during the interrogation time. Here, we introduce three-level Ramsey interferometry that employs a noncyclic geometric phase response to enhance phase sensing, with projected internal-path interference reshaping the mapping from accumulated signal phase to readout phase. Near a geodesic-closure transition, a small accumulated signal phase produces a sharply amplified readout-phase shift. We quantify the accompanying gain--visibility tradeoff and identify a finite operating window in which the amplified respo"},"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":"2606.18443","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-16T19:48:45Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"8f69a15c3403dc27bd0560dfc17be0116a832a00918560719e82b3b8e94e9faa","abstract_canon_sha256":"41e036ce78ca1b94cd45a6e2ff6bac5f879f776f82922c3a88383c88b736a491"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:11:01.319309Z","signature_b64":"DSFKcHX7WJGgcT9ARbIjXbU4V1pxzCKrDuumwlIpmH8anEbX8XQRHfJ9NODwwCaQ0lUBCXfqh4X6CEFKKwGIBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9aafafa89aad0f240903cb6bbc15cbdc8eb5b8b99d4969f4237ec91ae89a0d60","last_reissued_at":"2026-06-19T16:11:01.318929Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:11:01.318929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Noncyclic geometric phase in three-level Ramsey interferometry for enhanced metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Yaxin Li, Zhifan Zhou","submitted_at":"2026-06-16T19:48:45Z","abstract_excerpt":"In a standard two-level Ramsey interferometer, the measured phase accumulates linearly during the interrogation time. Here, we introduce three-level Ramsey interferometry that employs a noncyclic geometric phase response to enhance phase sensing, with projected internal-path interference reshaping the mapping from accumulated signal phase to readout phase. Near a geodesic-closure transition, a small accumulated signal phase produces a sharply amplified readout-phase shift. We quantify the accompanying gain--visibility tradeoff and identify a finite operating window in which the amplified respo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18443","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/2606.18443/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":"2606.18443","created_at":"2026-06-19T16:11:01.318990+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.18443v1","created_at":"2026-06-19T16:11:01.318990+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18443","created_at":"2026-06-19T16:11:01.318990+00:00"},{"alias_kind":"pith_short_12","alias_value":"TKX27KE2VUHS","created_at":"2026-06-19T16:11:01.318990+00:00"},{"alias_kind":"pith_short_16","alias_value":"TKX27KE2VUHSICID","created_at":"2026-06-19T16:11:01.318990+00:00"},{"alias_kind":"pith_short_8","alias_value":"TKX27KE2","created_at":"2026-06-19T16:11:01.318990+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/TKX27KE2VUHSICIDZNV3YFOL3S","json":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S.json","graph_json":"https://pith.science/api/pith-number/TKX27KE2VUHSICIDZNV3YFOL3S/graph.json","events_json":"https://pith.science/api/pith-number/TKX27KE2VUHSICIDZNV3YFOL3S/events.json","paper":"https://pith.science/paper/TKX27KE2"},"agent_actions":{"view_html":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S","download_json":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S.json","view_paper":"https://pith.science/paper/TKX27KE2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.18443&json=true","fetch_graph":"https://pith.science/api/pith-number/TKX27KE2VUHSICIDZNV3YFOL3S/graph.json","fetch_events":"https://pith.science/api/pith-number/TKX27KE2VUHSICIDZNV3YFOL3S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S/action/storage_attestation","attest_author":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S/action/author_attestation","sign_citation":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S/action/citation_signature","submit_replication":"https://pith.science/pith/TKX27KE2VUHSICIDZNV3YFOL3S/action/replication_record"}},"created_at":"2026-06-19T16:11:01.318990+00:00","updated_at":"2026-06-19T16:11:01.318990+00:00"}