{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:LTCF2QEO3RE5MYBSWYZYEKWUD3","short_pith_number":"pith:LTCF2QEO","schema_version":"1.0","canonical_sha256":"5cc45d408edc49d66032b633822ad41ee1b2ba9e077e1e34c664af831a798c9c","source":{"kind":"arxiv","id":"1406.5473","version":1},"attestation_state":"computed","paper":{"title":"High-fidelity two-qubit quantum logic gates using trapped calcium-43 ions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"C. J. Ballance, D. M. Lucas, N. M. Linke, T. P. Harty","submitted_at":"2014-06-20T18:03:44Z","abstract_excerpt":"We study the speed/fidelity trade-off for a two-qubit phase gate implemented in $^{43}$Ca$^+$ hyperfine trapped-ion qubits. We characterize various error sources contributing to the measured fidelity, allowing us to account for errors due to single-qubit state preparation, rotation and measurement (each at the $\\sim0.1\\%$ level), and to identify the leading sources of error in the two-qubit entangling operation. We achieve gate fidelities ranging between $97.1(2)\\%$ (for a gate time $t_g=3.8\\mu$s) and $99.9(1)\\%$ (for $t_g=100\\mu$s), representing respectively the fastest and lowest-error two-q"},"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":"1406.5473","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-20T18:03:44Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"911d2ef3a5087984f4c50e02dee391bd8e3bdcf0fe876b6727cedf2fe9bb819e","abstract_canon_sha256":"91e86fe63f6772d30936e259b7477b1e012cf70ff92a6c3da3f94f5b0415bb59"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:38.051516Z","signature_b64":"NCtzeDRBVn69hMzGQYro5WBGnGkPN9yG7KK+67czyueCCKh4X2ZcscVn731Za+1tpCBDOQjTMMD+RGoxJ2NhDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cc45d408edc49d66032b633822ad41ee1b2ba9e077e1e34c664af831a798c9c","last_reissued_at":"2026-05-18T01:09:38.051165Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:38.051165Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-fidelity two-qubit quantum logic gates using trapped calcium-43 ions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"C. J. Ballance, D. M. Lucas, N. M. Linke, T. P. Harty","submitted_at":"2014-06-20T18:03:44Z","abstract_excerpt":"We study the speed/fidelity trade-off for a two-qubit phase gate implemented in $^{43}$Ca$^+$ hyperfine trapped-ion qubits. We characterize various error sources contributing to the measured fidelity, allowing us to account for errors due to single-qubit state preparation, rotation and measurement (each at the $\\sim0.1\\%$ level), and to identify the leading sources of error in the two-qubit entangling operation. We achieve gate fidelities ranging between $97.1(2)\\%$ (for a gate time $t_g=3.8\\mu$s) and $99.9(1)\\%$ (for $t_g=100\\mu$s), representing respectively the fastest and lowest-error two-q"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5473","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":"1406.5473","created_at":"2026-05-18T01:09:38.051219+00:00"},{"alias_kind":"arxiv_version","alias_value":"1406.5473v1","created_at":"2026-05-18T01:09:38.051219+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5473","created_at":"2026-05-18T01:09:38.051219+00:00"},{"alias_kind":"pith_short_12","alias_value":"LTCF2QEO3RE5","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_16","alias_value":"LTCF2QEO3RE5MYBS","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_8","alias_value":"LTCF2QEO","created_at":"2026-05-18T12:28:38.356838+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/LTCF2QEO3RE5MYBSWYZYEKWUD3","json":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3.json","graph_json":"https://pith.science/api/pith-number/LTCF2QEO3RE5MYBSWYZYEKWUD3/graph.json","events_json":"https://pith.science/api/pith-number/LTCF2QEO3RE5MYBSWYZYEKWUD3/events.json","paper":"https://pith.science/paper/LTCF2QEO"},"agent_actions":{"view_html":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3","download_json":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3.json","view_paper":"https://pith.science/paper/LTCF2QEO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1406.5473&json=true","fetch_graph":"https://pith.science/api/pith-number/LTCF2QEO3RE5MYBSWYZYEKWUD3/graph.json","fetch_events":"https://pith.science/api/pith-number/LTCF2QEO3RE5MYBSWYZYEKWUD3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3/action/storage_attestation","attest_author":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3/action/author_attestation","sign_citation":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3/action/citation_signature","submit_replication":"https://pith.science/pith/LTCF2QEO3RE5MYBSWYZYEKWUD3/action/replication_record"}},"created_at":"2026-05-18T01:09:38.051219+00:00","updated_at":"2026-05-18T01:09:38.051219+00:00"}