{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:XC46VSU6H7RVCAZ35CSYC5KHPY","short_pith_number":"pith:XC46VSU6","schema_version":"1.0","canonical_sha256":"b8b9eaca9e3fe351033be8a58175477e293ae5cc41bce36991b00abafa126c1b","source":{"kind":"arxiv","id":"1507.05149","version":1},"attestation_state":"computed","paper":{"title":"Momentum distribution of Cooper-pairs and strong-coupling effects in a two-dimensional Fermi gas near the Berezinskii-Kosterlitz-Thouless transition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"D. Inotani, M. Matsumoto, Y. Ohashi","submitted_at":"2015-07-18T05:55:15Z","abstract_excerpt":"We investigate strong-coupling properties of a two-dimensional ultracold Fermi gas in the normal state. Including pairing fluctuations within the framework of a $T$-matrix approximation, we calculate the distribution function $n({\\boldsymbol Q})$ of Cooper pairs in terms of the center of mass momentum ${\\boldsymbol Q}$. In the strong-coupling regime, $n({\\boldsymbol Q}=0)$ is shown to exhibit a remarkable increase with decreasing the temperature in the low temperature region, which agrees well with the recent experiment on a two-dimensional $^6$Li Fermi gas [M. G. Ries, {\\it et. al.}, Phys. Re"},"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":"1507.05149","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2015-07-18T05:55:15Z","cross_cats_sorted":[],"title_canon_sha256":"e9172144ad991d6843bedf3c2aebc1ee708cb08507e1eb69478677501b27341e","abstract_canon_sha256":"3b9155c84e90b37875a19110256875d19493063f76be40fe0b443b60268b9e13"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:55.025986Z","signature_b64":"CUZIOxAWXn/tklNFGB/70nf8z+/g5X+2IkJ7PIiSZq4DNe9Ug1yZFKqiLfoAXWriDAIWMJ6evG8pBalG3jfQDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8b9eaca9e3fe351033be8a58175477e293ae5cc41bce36991b00abafa126c1b","last_reissued_at":"2026-05-18T01:21:55.025392Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:55.025392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Momentum distribution of Cooper-pairs and strong-coupling effects in a two-dimensional Fermi gas near the Berezinskii-Kosterlitz-Thouless transition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"D. Inotani, M. Matsumoto, Y. Ohashi","submitted_at":"2015-07-18T05:55:15Z","abstract_excerpt":"We investigate strong-coupling properties of a two-dimensional ultracold Fermi gas in the normal state. Including pairing fluctuations within the framework of a $T$-matrix approximation, we calculate the distribution function $n({\\boldsymbol Q})$ of Cooper pairs in terms of the center of mass momentum ${\\boldsymbol Q}$. In the strong-coupling regime, $n({\\boldsymbol Q}=0)$ is shown to exhibit a remarkable increase with decreasing the temperature in the low temperature region, which agrees well with the recent experiment on a two-dimensional $^6$Li Fermi gas [M. G. Ries, {\\it et. al.}, Phys. Re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.05149","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":"1507.05149","created_at":"2026-05-18T01:21:55.025480+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.05149v1","created_at":"2026-05-18T01:21:55.025480+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.05149","created_at":"2026-05-18T01:21:55.025480+00:00"},{"alias_kind":"pith_short_12","alias_value":"XC46VSU6H7RV","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_16","alias_value":"XC46VSU6H7RVCAZ3","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_8","alias_value":"XC46VSU6","created_at":"2026-05-18T12:29:50.041715+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/XC46VSU6H7RVCAZ35CSYC5KHPY","json":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY.json","graph_json":"https://pith.science/api/pith-number/XC46VSU6H7RVCAZ35CSYC5KHPY/graph.json","events_json":"https://pith.science/api/pith-number/XC46VSU6H7RVCAZ35CSYC5KHPY/events.json","paper":"https://pith.science/paper/XC46VSU6"},"agent_actions":{"view_html":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY","download_json":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY.json","view_paper":"https://pith.science/paper/XC46VSU6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.05149&json=true","fetch_graph":"https://pith.science/api/pith-number/XC46VSU6H7RVCAZ35CSYC5KHPY/graph.json","fetch_events":"https://pith.science/api/pith-number/XC46VSU6H7RVCAZ35CSYC5KHPY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY/action/storage_attestation","attest_author":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY/action/author_attestation","sign_citation":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY/action/citation_signature","submit_replication":"https://pith.science/pith/XC46VSU6H7RVCAZ35CSYC5KHPY/action/replication_record"}},"created_at":"2026-05-18T01:21:55.025480+00:00","updated_at":"2026-05-18T01:21:55.025480+00:00"}