{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:UXHAKP6XHO5U7S57CV5ZXYDH2B","short_pith_number":"pith:UXHAKP6X","schema_version":"1.0","canonical_sha256":"a5ce053fd73bbb4fcbbf157b9be067d06c657575b27bc7e49761f36ac7c5b5d7","source":{"kind":"arxiv","id":"0903.0219","version":1},"attestation_state":"computed","paper":{"title":"Generating entangled fermions by accelerated measurements on the vacuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David C. M. Ostapchuk, Robert B. Mann","submitted_at":"2009-03-02T07:42:13Z","abstract_excerpt":"It is shown that accelerated projective measurements on the vacuum of a free Dirac spinor field results in an entangled state for an inertial observer. The physical mechanism at work is the Davies-Unruh effect. The produced state is always entangled and its entanglement increases as a function of the acceleration, reaching maximal entanglement in the asymptotic limit of infinite acceleration where Bell states are produced."},"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":"0903.0219","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-03-02T07:42:13Z","cross_cats_sorted":[],"title_canon_sha256":"8f8dd7d66881040ec7a8f191e9478fedd6e986098633acb5f96f30588bb4823d","abstract_canon_sha256":"e1617d6826a7ebf0bfa2f903158606170f338a1834b1a4cd578f9c6df56c0ff5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:37.937559Z","signature_b64":"5LOt5Yf06kfZFC+WgDULV0GagaUZnp0xWfpXg7WVifpFUTFjl7OK0eOxR/OU/5qnXrNs3WOyyhlaRKKT4GPVCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5ce053fd73bbb4fcbbf157b9be067d06c657575b27bc7e49761f36ac7c5b5d7","last_reissued_at":"2026-05-18T02:14:37.936813Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:37.936813Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Generating entangled fermions by accelerated measurements on the vacuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David C. M. Ostapchuk, Robert B. Mann","submitted_at":"2009-03-02T07:42:13Z","abstract_excerpt":"It is shown that accelerated projective measurements on the vacuum of a free Dirac spinor field results in an entangled state for an inertial observer. The physical mechanism at work is the Davies-Unruh effect. The produced state is always entangled and its entanglement increases as a function of the acceleration, reaching maximal entanglement in the asymptotic limit of infinite acceleration where Bell states are produced."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0219","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":"0903.0219","created_at":"2026-05-18T02:14:37.936937+00:00"},{"alias_kind":"arxiv_version","alias_value":"0903.0219v1","created_at":"2026-05-18T02:14:37.936937+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0219","created_at":"2026-05-18T02:14:37.936937+00:00"},{"alias_kind":"pith_short_12","alias_value":"UXHAKP6XHO5U","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_16","alias_value":"UXHAKP6XHO5U7S57","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_8","alias_value":"UXHAKP6X","created_at":"2026-05-18T12:26:02.257875+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/UXHAKP6XHO5U7S57CV5ZXYDH2B","json":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B.json","graph_json":"https://pith.science/api/pith-number/UXHAKP6XHO5U7S57CV5ZXYDH2B/graph.json","events_json":"https://pith.science/api/pith-number/UXHAKP6XHO5U7S57CV5ZXYDH2B/events.json","paper":"https://pith.science/paper/UXHAKP6X"},"agent_actions":{"view_html":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B","download_json":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B.json","view_paper":"https://pith.science/paper/UXHAKP6X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0903.0219&json=true","fetch_graph":"https://pith.science/api/pith-number/UXHAKP6XHO5U7S57CV5ZXYDH2B/graph.json","fetch_events":"https://pith.science/api/pith-number/UXHAKP6XHO5U7S57CV5ZXYDH2B/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B/action/storage_attestation","attest_author":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B/action/author_attestation","sign_citation":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B/action/citation_signature","submit_replication":"https://pith.science/pith/UXHAKP6XHO5U7S57CV5ZXYDH2B/action/replication_record"}},"created_at":"2026-05-18T02:14:37.936937+00:00","updated_at":"2026-05-18T02:14:37.936937+00:00"}