{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:SSN56N4DQYLI5ZIXJHDAVK5WFJ","short_pith_number":"pith:SSN56N4D","schema_version":"1.0","canonical_sha256":"949bdf378386168ee51749c60aabb62a594a644f27f2ff5ae76bbd752c83a17f","source":{"kind":"arxiv","id":"cond-mat/0304342","version":4},"attestation_state":"computed","paper":{"title":"Gibbons-Hawking Effect in the Sonic de Sitter Space-Time of an Expanding Bose-Einstein-Condensed Gas","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"cond-mat","authors_text":"Petr O. Fedichev, Uwe R. Fischer","submitted_at":"2003-04-15T17:28:55Z","abstract_excerpt":"We propose an experimental scheme to observe the Gibbons-Hawking effect in the acoustic analog of a 1+1-dimensional de Sitter universe, produced in an expanding, cigar-shaped Bose-Einstein condensate. It is shown that a two-level system created at the center of the trap, an atomic quantum dot interacting with phonons, observes a thermal Bose distribution at the de Sitter temperature."},"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":"cond-mat/0304342","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"2003-04-15T17:28:55Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"edcb1c997131a5ffda92cdd9d2c2d6e8e66359006e59f11d345f6fa399947df6","abstract_canon_sha256":"ad2470652d42e16ceba27ca2d1135bc48872a34a4b52f3b0920bea7bc7e97085"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:20:02.062422Z","signature_b64":"em3O8nlpiAzEAVzzxjbtX9+CH0csdLC4pci0+cGg7EZkkJjpDb5U3xvcY3nS8kTnbmKE/lrMC5RWFIo/bw7qBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"949bdf378386168ee51749c60aabb62a594a644f27f2ff5ae76bbd752c83a17f","last_reissued_at":"2026-07-04T14:20:02.062057Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:20:02.062057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gibbons-Hawking Effect in the Sonic de Sitter Space-Time of an Expanding Bose-Einstein-Condensed Gas","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"cond-mat","authors_text":"Petr O. Fedichev, Uwe R. Fischer","submitted_at":"2003-04-15T17:28:55Z","abstract_excerpt":"We propose an experimental scheme to observe the Gibbons-Hawking effect in the acoustic analog of a 1+1-dimensional de Sitter universe, produced in an expanding, cigar-shaped Bose-Einstein condensate. It is shown that a two-level system created at the center of the trap, an atomic quantum dot interacting with phonons, observes a thermal Bose distribution at the de Sitter temperature."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0304342","kind":"arxiv","version":4},"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/cond-mat/0304342/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":"cond-mat/0304342","created_at":"2026-07-04T14:20:02.062120+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0304342v4","created_at":"2026-07-04T14:20:02.062120+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0304342","created_at":"2026-07-04T14:20:02.062120+00:00"},{"alias_kind":"pith_short_12","alias_value":"SSN56N4DQYLI","created_at":"2026-07-04T14:20:02.062120+00:00"},{"alias_kind":"pith_short_16","alias_value":"SSN56N4DQYLI5ZIX","created_at":"2026-07-04T14:20:02.062120+00:00"},{"alias_kind":"pith_short_8","alias_value":"SSN56N4D","created_at":"2026-07-04T14:20:02.062120+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":3,"sample":[{"citing_arxiv_id":"2605.14670","citing_title":"Laboratory rivers extremize friction and are cosmological analogues","ref_index":27,"is_internal_anchor":true},{"citing_arxiv_id":"2605.27862","citing_title":"Shadow, acoustic redshift, and transfer observables of Lorentz-violating rotating acoustic black holes","ref_index":15,"is_internal_anchor":true},{"citing_arxiv_id":"2603.26121","citing_title":"Probing Unruh Effect from Enhanced Decoherence","ref_index":13,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ","json":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ.json","graph_json":"https://pith.science/api/pith-number/SSN56N4DQYLI5ZIXJHDAVK5WFJ/graph.json","events_json":"https://pith.science/api/pith-number/SSN56N4DQYLI5ZIXJHDAVK5WFJ/events.json","paper":"https://pith.science/paper/SSN56N4D"},"agent_actions":{"view_html":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ","download_json":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ.json","view_paper":"https://pith.science/paper/SSN56N4D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0304342&json=true","fetch_graph":"https://pith.science/api/pith-number/SSN56N4DQYLI5ZIXJHDAVK5WFJ/graph.json","fetch_events":"https://pith.science/api/pith-number/SSN56N4DQYLI5ZIXJHDAVK5WFJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ/action/storage_attestation","attest_author":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ/action/author_attestation","sign_citation":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ/action/citation_signature","submit_replication":"https://pith.science/pith/SSN56N4DQYLI5ZIXJHDAVK5WFJ/action/replication_record"}},"created_at":"2026-07-04T14:20:02.062120+00:00","updated_at":"2026-07-04T14:20:02.062120+00:00"}