{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:2SVT47ZTG47C3LK6Y63HLT2GYA","short_pith_number":"pith:2SVT47ZT","schema_version":"1.0","canonical_sha256":"d4ab3e7f33373e2dad5ec7b675cf46c030ee78d452d7d1d73f939bf76c208bb6","source":{"kind":"arxiv","id":"1709.05179","version":1},"attestation_state":"computed","paper":{"title":"Demonstration of two-atom entanglement with ultrafast optical pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"C. Monroe, J. D. Wong-Campos, K. G. Johnson, S. A. Moses","submitted_at":"2017-09-15T12:47:24Z","abstract_excerpt":"We demonstrate quantum entanglement of two trapped atomic ion qubits using a sequence of ultrafast laser pulses. Unlike previous demonstrations of entanglement mediated by the Coulomb interaction, this scheme does not require confinement to the Lamb-Dicke regime and can be less sensitive to ambient noise due to its speed. To elucidate the physics of an ultrafast phase gate, we generate a high entanglement rate using just 10 pulses, each of $\\sim20$ ps duration, and demonstrate an entangled Bell-state with $(76\\pm1)$% fidelity. These results pave the way for entanglement operations within a lar"},"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":"1709.05179","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-09-15T12:47:24Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"1f1765c02b535d90959e8d7ae74f0e2320b3652880486a25091ed145026731e7","abstract_canon_sha256":"bf056b11f719b8cd0ab6218f524775dff11c738b3ecc25c1e873f9a1fc5796f2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:14.106016Z","signature_b64":"Tqt7diKRVbbOWZhJYETd6rV4jykK2c2LeucLBVYg0pccj5QPbnPS4uuJODBGr+0OrnMmZLH1/Lu7JgSG9+FJCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4ab3e7f33373e2dad5ec7b675cf46c030ee78d452d7d1d73f939bf76c208bb6","last_reissued_at":"2026-05-18T00:28:14.104987Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:14.104987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Demonstration of two-atom entanglement with ultrafast optical pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"C. Monroe, J. D. Wong-Campos, K. G. Johnson, S. A. Moses","submitted_at":"2017-09-15T12:47:24Z","abstract_excerpt":"We demonstrate quantum entanglement of two trapped atomic ion qubits using a sequence of ultrafast laser pulses. Unlike previous demonstrations of entanglement mediated by the Coulomb interaction, this scheme does not require confinement to the Lamb-Dicke regime and can be less sensitive to ambient noise due to its speed. To elucidate the physics of an ultrafast phase gate, we generate a high entanglement rate using just 10 pulses, each of $\\sim20$ ps duration, and demonstrate an entangled Bell-state with $(76\\pm1)$% fidelity. These results pave the way for entanglement operations within a lar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.05179","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":"1709.05179","created_at":"2026-05-18T00:28:14.105132+00:00"},{"alias_kind":"arxiv_version","alias_value":"1709.05179v1","created_at":"2026-05-18T00:28:14.105132+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.05179","created_at":"2026-05-18T00:28:14.105132+00:00"},{"alias_kind":"pith_short_12","alias_value":"2SVT47ZTG47C","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_16","alias_value":"2SVT47ZTG47C3LK6","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_8","alias_value":"2SVT47ZT","created_at":"2026-05-18T12:30:55.937587+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/2SVT47ZTG47C3LK6Y63HLT2GYA","json":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA.json","graph_json":"https://pith.science/api/pith-number/2SVT47ZTG47C3LK6Y63HLT2GYA/graph.json","events_json":"https://pith.science/api/pith-number/2SVT47ZTG47C3LK6Y63HLT2GYA/events.json","paper":"https://pith.science/paper/2SVT47ZT"},"agent_actions":{"view_html":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA","download_json":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA.json","view_paper":"https://pith.science/paper/2SVT47ZT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1709.05179&json=true","fetch_graph":"https://pith.science/api/pith-number/2SVT47ZTG47C3LK6Y63HLT2GYA/graph.json","fetch_events":"https://pith.science/api/pith-number/2SVT47ZTG47C3LK6Y63HLT2GYA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA/action/storage_attestation","attest_author":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA/action/author_attestation","sign_citation":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA/action/citation_signature","submit_replication":"https://pith.science/pith/2SVT47ZTG47C3LK6Y63HLT2GYA/action/replication_record"}},"created_at":"2026-05-18T00:28:14.105132+00:00","updated_at":"2026-05-18T00:28:14.105132+00:00"}