{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:K43EKVKDSDUU4NOFYZEIY5AJ45","short_pith_number":"pith:K43EKVKD","schema_version":"1.0","canonical_sha256":"573645554390e94e35c5c6488c7409e77a52ac99f563cfdebab7c0e34e0ff71b","source":{"kind":"arxiv","id":"1308.3126","version":1},"attestation_state":"computed","paper":{"title":"Heralded entanglement of two ions in an optical cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Stute, B. Brandst\\\"atter, B. Casabone, K. Friebe, K. Sch\\\"uppert, R. Blatt, T. E. Northup","submitted_at":"2013-08-14T13:49:22Z","abstract_excerpt":"We demonstrate precise control of the coupling of each of two trapped ions to the mode of an optical resonator. When both ions are coupled with near-maximum strength, we generate ion--ion entanglement heralded by the detection of two orthogonally polarized cavity photons. The entanglement fidelity with respect to the Bell state $\\Psi^+$ reaches $F \\geq (91.9\\pm2.5)%$. This result represents an important step toward distributed quantum computing with cavities linking remote atom-based registers."},"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":"1308.3126","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-08-14T13:49:22Z","cross_cats_sorted":[],"title_canon_sha256":"670d26cb8f059a6cbe8287df8e4d10a62e272e255a337592ddbc7330651a262c","abstract_canon_sha256":"f6fcf23df5d97c9db073f1be01eb3f4706be7b7b30b3b41251a0af77e8381d36"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:15.581349Z","signature_b64":"YP9X3l700XCzWEMhsdk9bFt8HsEDzbMFHlwkdXXJTLIu/x8MLdA0rKjldSwOW2yYv+APKHr+BDAWeryrScT7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"573645554390e94e35c5c6488c7409e77a52ac99f563cfdebab7c0e34e0ff71b","last_reissued_at":"2026-05-18T01:48:15.580934Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:15.580934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Heralded entanglement of two ions in an optical cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Stute, B. Brandst\\\"atter, B. Casabone, K. Friebe, K. Sch\\\"uppert, R. Blatt, T. E. Northup","submitted_at":"2013-08-14T13:49:22Z","abstract_excerpt":"We demonstrate precise control of the coupling of each of two trapped ions to the mode of an optical resonator. When both ions are coupled with near-maximum strength, we generate ion--ion entanglement heralded by the detection of two orthogonally polarized cavity photons. The entanglement fidelity with respect to the Bell state $\\Psi^+$ reaches $F \\geq (91.9\\pm2.5)%$. This result represents an important step toward distributed quantum computing with cavities linking remote atom-based registers."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.3126","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":""},"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":"1308.3126","created_at":"2026-05-18T01:48:15.581006+00:00"},{"alias_kind":"arxiv_version","alias_value":"1308.3126v1","created_at":"2026-05-18T01:48:15.581006+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.3126","created_at":"2026-05-18T01:48:15.581006+00:00"},{"alias_kind":"pith_short_12","alias_value":"K43EKVKDSDUU","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_16","alias_value":"K43EKVKDSDUU4NOF","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_8","alias_value":"K43EKVKD","created_at":"2026-05-18T12:27:49.015174+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/K43EKVKDSDUU4NOFYZEIY5AJ45","json":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45.json","graph_json":"https://pith.science/api/pith-number/K43EKVKDSDUU4NOFYZEIY5AJ45/graph.json","events_json":"https://pith.science/api/pith-number/K43EKVKDSDUU4NOFYZEIY5AJ45/events.json","paper":"https://pith.science/paper/K43EKVKD"},"agent_actions":{"view_html":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45","download_json":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45.json","view_paper":"https://pith.science/paper/K43EKVKD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1308.3126&json=true","fetch_graph":"https://pith.science/api/pith-number/K43EKVKDSDUU4NOFYZEIY5AJ45/graph.json","fetch_events":"https://pith.science/api/pith-number/K43EKVKDSDUU4NOFYZEIY5AJ45/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45/action/storage_attestation","attest_author":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45/action/author_attestation","sign_citation":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45/action/citation_signature","submit_replication":"https://pith.science/pith/K43EKVKDSDUU4NOFYZEIY5AJ45/action/replication_record"}},"created_at":"2026-05-18T01:48:15.581006+00:00","updated_at":"2026-05-18T01:48:15.581006+00:00"}