{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:ILQVSHAKDNHKZDIB7MSKPDLND4","short_pith_number":"pith:ILQVSHAK","schema_version":"1.0","canonical_sha256":"42e1591c0a1b4eac8d01fb24a78d6d1f19806cb0aa29bfa79d5c0cbf18287dea","source":{"kind":"arxiv","id":"quant-ph/0212044","version":2},"attestation_state":"computed","paper":{"title":"Entanglement from the vacuum","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"quant-ph","authors_text":"Benni Reznik","submitted_at":"2002-12-08T09:26:56Z","abstract_excerpt":"We explore the entanglement of the vacuum of a relativistic field by letting a pair of causally disconnected probes interact with the field. We find that, even when the probes are initially non-entangled, they can wind up to a final entangled state. This shows that entanglement persists between disconnected regions in the vacuum. However the probe entanglement, unlike correlations, vanishes once the regions become sufficiently separated. The relation between entropy, correlations and entanglement is discussed."},"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":"quant-ph/0212044","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2002-12-08T09:26:56Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"ab459eb66eb1681c94cb85d0454ecd28e33ff8e87ebc3ae05823d42aab5e014b","abstract_canon_sha256":"1af83d4c45b10574a45d9a246b39652ebc0d42a90b8d335d61f764f0e30de0bf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:05:41.488500Z","signature_b64":"w2NZs9d8eVs14vbipNHGpNSEZ5ZMVm3MUOJZ1FW6WsqhX1fVFL7U2HeWD8JKiUnArANI4gwOz+MJ3njiZ4nOBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42e1591c0a1b4eac8d01fb24a78d6d1f19806cb0aa29bfa79d5c0cbf18287dea","last_reissued_at":"2026-07-05T05:05:41.488072Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:05:41.488072Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Entanglement from the vacuum","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"quant-ph","authors_text":"Benni Reznik","submitted_at":"2002-12-08T09:26:56Z","abstract_excerpt":"We explore the entanglement of the vacuum of a relativistic field by letting a pair of causally disconnected probes interact with the field. We find that, even when the probes are initially non-entangled, they can wind up to a final entangled state. This shows that entanglement persists between disconnected regions in the vacuum. However the probe entanglement, unlike correlations, vanishes once the regions become sufficiently separated. The relation between entropy, correlations and entanglement is discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0212044","kind":"arxiv","version":2},"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/quant-ph/0212044/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":"quant-ph/0212044","created_at":"2026-07-05T05:05:41.488129+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0212044v2","created_at":"2026-07-05T05:05:41.488129+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0212044","created_at":"2026-07-05T05:05:41.488129+00:00"},{"alias_kind":"pith_short_12","alias_value":"ILQVSHAKDNHK","created_at":"2026-07-05T05:05:41.488129+00:00"},{"alias_kind":"pith_short_16","alias_value":"ILQVSHAKDNHKZDIB","created_at":"2026-07-05T05:05:41.488129+00:00"},{"alias_kind":"pith_short_8","alias_value":"ILQVSHAK","created_at":"2026-07-05T05:05:41.488129+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":4,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.05715","citing_title":"Entangled quantum clocks as operational probes of spacetime curvature","ref_index":21,"is_internal_anchor":true},{"citing_arxiv_id":"2406.19125","citing_title":"Entanglement Harvesting and Quantum Discord of Alpha Vacua in de Sitter Space","ref_index":20,"is_internal_anchor":false},{"citing_arxiv_id":"2502.20874","citing_title":"Entanglement between accelerated probes in a de Sitter spacetime","ref_index":36,"is_internal_anchor":false},{"citing_arxiv_id":"2604.23673","citing_title":"Entanglement (1+2) QED in a double layer of Dirac Materials","ref_index":4,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4","json":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4.json","graph_json":"https://pith.science/api/pith-number/ILQVSHAKDNHKZDIB7MSKPDLND4/graph.json","events_json":"https://pith.science/api/pith-number/ILQVSHAKDNHKZDIB7MSKPDLND4/events.json","paper":"https://pith.science/paper/ILQVSHAK"},"agent_actions":{"view_html":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4","download_json":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4.json","view_paper":"https://pith.science/paper/ILQVSHAK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/0212044&json=true","fetch_graph":"https://pith.science/api/pith-number/ILQVSHAKDNHKZDIB7MSKPDLND4/graph.json","fetch_events":"https://pith.science/api/pith-number/ILQVSHAKDNHKZDIB7MSKPDLND4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4/action/storage_attestation","attest_author":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4/action/author_attestation","sign_citation":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4/action/citation_signature","submit_replication":"https://pith.science/pith/ILQVSHAKDNHKZDIB7MSKPDLND4/action/replication_record"}},"created_at":"2026-07-05T05:05:41.488129+00:00","updated_at":"2026-07-05T05:05:41.488129+00:00"}