{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:XFN3ETJADBZIA7BYGA2V6JLTKH","short_pith_number":"pith:XFN3ETJA","schema_version":"1.0","canonical_sha256":"b95bb24d201872807c3830355f257351ebacb86f9428d8ecec51194a7cfa2663","source":{"kind":"arxiv","id":"1308.5487","version":2},"attestation_state":"computed","paper":{"title":"Local observation of pair-condensation in a Fermi gas at unitarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"C. J. Vale, K. Fenech, M. G. Lingham, S. Hoinka","submitted_at":"2013-08-26T04:48:36Z","abstract_excerpt":"We present measurements of the local (homogeneous) density-density response function of a Fermi gas at unitarity using spatially resolved Bragg spectroscopy. By analyzing the Bragg response across one axis of the cloud we extract the response function for a uniform gas which shows a clear signature of the Bose-Einstein condensation of pairs of fermions when the local temperature drops below the superfluid transition temperature. The method we use for local measurement generalizes a scheme for obtaining the local pressure in a harmonically trapped cloud from the line density and can be adapted "},"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":"1308.5487","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2013-08-26T04:48:36Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"672f33ff7440050a9f058e833471e93dfddd9e1f85df8809c17f9ea1f7669858","abstract_canon_sha256":"ecac0d92048fbd3960b14deeff4294ac86ee6b45cbb3db3ab9bc63c7927ac591"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:56:05.143119Z","signature_b64":"UyB4++eY9kh62iL1Jj6yBHXec6SlqECeBoNEFV5zP/JCQcLOAmlyFPMI9Fo43YqWHIM2Dwn6ZPSysIMFg/n9AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b95bb24d201872807c3830355f257351ebacb86f9428d8ecec51194a7cfa2663","last_reissued_at":"2026-05-18T02:56:05.142713Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:56:05.142713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Local observation of pair-condensation in a Fermi gas at unitarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"C. J. Vale, K. Fenech, M. G. Lingham, S. Hoinka","submitted_at":"2013-08-26T04:48:36Z","abstract_excerpt":"We present measurements of the local (homogeneous) density-density response function of a Fermi gas at unitarity using spatially resolved Bragg spectroscopy. By analyzing the Bragg response across one axis of the cloud we extract the response function for a uniform gas which shows a clear signature of the Bose-Einstein condensation of pairs of fermions when the local temperature drops below the superfluid transition temperature. The method we use for local measurement generalizes a scheme for obtaining the local pressure in a harmonically trapped cloud from the line density and can be adapted "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5487","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":""},"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":"1308.5487","created_at":"2026-05-18T02:56:05.142768+00:00"},{"alias_kind":"arxiv_version","alias_value":"1308.5487v2","created_at":"2026-05-18T02:56:05.142768+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5487","created_at":"2026-05-18T02:56:05.142768+00:00"},{"alias_kind":"pith_short_12","alias_value":"XFN3ETJADBZI","created_at":"2026-05-18T12:28:06.772260+00:00"},{"alias_kind":"pith_short_16","alias_value":"XFN3ETJADBZIA7BY","created_at":"2026-05-18T12:28:06.772260+00:00"},{"alias_kind":"pith_short_8","alias_value":"XFN3ETJA","created_at":"2026-05-18T12:28:06.772260+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/XFN3ETJADBZIA7BYGA2V6JLTKH","json":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH.json","graph_json":"https://pith.science/api/pith-number/XFN3ETJADBZIA7BYGA2V6JLTKH/graph.json","events_json":"https://pith.science/api/pith-number/XFN3ETJADBZIA7BYGA2V6JLTKH/events.json","paper":"https://pith.science/paper/XFN3ETJA"},"agent_actions":{"view_html":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH","download_json":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH.json","view_paper":"https://pith.science/paper/XFN3ETJA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1308.5487&json=true","fetch_graph":"https://pith.science/api/pith-number/XFN3ETJADBZIA7BYGA2V6JLTKH/graph.json","fetch_events":"https://pith.science/api/pith-number/XFN3ETJADBZIA7BYGA2V6JLTKH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH/action/storage_attestation","attest_author":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH/action/author_attestation","sign_citation":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH/action/citation_signature","submit_replication":"https://pith.science/pith/XFN3ETJADBZIA7BYGA2V6JLTKH/action/replication_record"}},"created_at":"2026-05-18T02:56:05.142768+00:00","updated_at":"2026-05-18T02:56:05.142768+00:00"}