{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:NY26UJQBUZEPEHSSDWAG3H62CM","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d44cce664a621bb8085de47190ad21fa3cb32ff964836bceeb108aed96ae5790","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2009-07-24T14:42:06Z","title_canon_sha256":"72273c6b6f92e1a93b7387947665a63995c6bb516e51f6be74c07914e2c309b4"},"schema_version":"1.0","source":{"id":"0907.4305","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.4305","created_at":"2026-05-18T02:34:38Z"},{"alias_kind":"arxiv_version","alias_value":"0907.4305v1","created_at":"2026-05-18T02:34:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.4305","created_at":"2026-05-18T02:34:38Z"},{"alias_kind":"pith_short_12","alias_value":"NY26UJQBUZEP","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"NY26UJQBUZEPEHSS","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"NY26UJQB","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:21fc173b1d7e6ebfbab30c17d47bc1a7345e57aa4e5e716983131379eef407b6","target":"graph","created_at":"2026-05-18T02:34:38Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We apply the microscopic Bogoliubov theory of dilute Bose-Einstein condensates to analyze quantum and thermal fluctuations in a flowing atomic condensate in the presence of a sonic horizon. For the simplest case of a step-like horizon, closed-form analytical expressions are found for the spectral distribution of the analog Hawking radiation and for the density correlation function. The peculiar long-distance density correlations that appear as a consequence of the Hawking emission features turns out to be reinforced by a finite initial temperature of the condensate. The analytical results are ","authors_text":"A. Recati, I. Carusotto, N. Pavloff","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2009-07-24T14:42:06Z","title":"Bogoliubov Theory of acoustic Hawking radiation in Bose-Einstein Condensates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.4305","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:76f592d57d14d26ba5e83df31c72d3b83e02979f3ed579c7a7530f4c764183b0","target":"record","created_at":"2026-05-18T02:34:38Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d44cce664a621bb8085de47190ad21fa3cb32ff964836bceeb108aed96ae5790","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2009-07-24T14:42:06Z","title_canon_sha256":"72273c6b6f92e1a93b7387947665a63995c6bb516e51f6be74c07914e2c309b4"},"schema_version":"1.0","source":{"id":"0907.4305","kind":"arxiv","version":1}},"canonical_sha256":"6e35ea2601a648f21e521d806d9fda1334b667495adfd9c026a4a12e49c6d317","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e35ea2601a648f21e521d806d9fda1334b667495adfd9c026a4a12e49c6d317","first_computed_at":"2026-05-18T02:34:38.407662Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:38.407662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qQ/Zme838RBIJXeOnDg+Vwo6STN4EaF2/NMOdre3+4dCnWGfxIvq6Jt6hYl+vCW9wu2k9e6KHrLJn1ok/D2QBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:38.408260Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.4305","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76f592d57d14d26ba5e83df31c72d3b83e02979f3ed579c7a7530f4c764183b0","sha256:21fc173b1d7e6ebfbab30c17d47bc1a7345e57aa4e5e716983131379eef407b6"],"state_sha256":"9b6eed7e8c262a34c4f38766b7e05a2ae478bb270717ed0d42ff9ba1e30a684b"}