{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:P6B6BIDH2SZZXC5ZD3VTJ3NZZY","short_pith_number":"pith:P6B6BIDH","schema_version":"1.0","canonical_sha256":"7f83e0a067d4b39b8bb91eeb34edb9ce01eb4a5a9210008f92c4f1823893d1f6","source":{"kind":"arxiv","id":"cond-mat/0702440","version":1},"attestation_state":"computed","paper":{"title":"Functional Renormalization Group calculation of the Fermi surface of a spin-ladder","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Gilles Abramovici (LPS), Michel H\\'eritier (LPS)","submitted_at":"2007-02-19T14:25:37Z","abstract_excerpt":"We study non conventional superconductivity on a ladder, improving the predictions of the Hubbard model. The determination of the Fermi surface, in 2 or 3 dimensions, remains a very hard task, but it is exactly solvable for a single ladder. We use functional Renormalisation Group methods, which prove, here, scheme-dependant. In the superconducting phase, the binding/antibinding gap is stabilized, but in the antiferromagnetic phase, it shrinks and the ladder turns one-dimensional."},"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/0702440","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-02-19T14:25:37Z","cross_cats_sorted":[],"title_canon_sha256":"04206e1cdac83693628227e95b9c9306eada7339c4da8f053180496a366d47b6","abstract_canon_sha256":"acc613196676b728a70cf266034d7a676a7d4e3b6d82803fadf39cdf7caf6da5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:20.929793Z","signature_b64":"sr6RNVl0UQWdklQN+/Gj/UKxq7ijbYYcl99TTt5ybClyQ/c8gMimp+b21WA+Frvd1I+vhXNq1N2CPkph6heNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f83e0a067d4b39b8bb91eeb34edb9ce01eb4a5a9210008f92c4f1823893d1f6","last_reissued_at":"2026-05-18T01:09:20.929282Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:20.929282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Functional Renormalization Group calculation of the Fermi surface of a spin-ladder","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Gilles Abramovici (LPS), Michel H\\'eritier (LPS)","submitted_at":"2007-02-19T14:25:37Z","abstract_excerpt":"We study non conventional superconductivity on a ladder, improving the predictions of the Hubbard model. The determination of the Fermi surface, in 2 or 3 dimensions, remains a very hard task, but it is exactly solvable for a single ladder. We use functional Renormalisation Group methods, which prove, here, scheme-dependant. In the superconducting phase, the binding/antibinding gap is stabilized, but in the antiferromagnetic phase, it shrinks and the ladder turns one-dimensional."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0702440","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":"cond-mat/0702440","created_at":"2026-05-18T01:09:20.929380+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0702440v1","created_at":"2026-05-18T01:09:20.929380+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0702440","created_at":"2026-05-18T01:09:20.929380+00:00"},{"alias_kind":"pith_short_12","alias_value":"P6B6BIDH2SZZ","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_16","alias_value":"P6B6BIDH2SZZXC5Z","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_8","alias_value":"P6B6BIDH","created_at":"2026-05-18T12:25:55.427421+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/P6B6BIDH2SZZXC5ZD3VTJ3NZZY","json":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY.json","graph_json":"https://pith.science/api/pith-number/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/graph.json","events_json":"https://pith.science/api/pith-number/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/events.json","paper":"https://pith.science/paper/P6B6BIDH"},"agent_actions":{"view_html":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY","download_json":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY.json","view_paper":"https://pith.science/paper/P6B6BIDH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0702440&json=true","fetch_graph":"https://pith.science/api/pith-number/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/graph.json","fetch_events":"https://pith.science/api/pith-number/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/action/storage_attestation","attest_author":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/action/author_attestation","sign_citation":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/action/citation_signature","submit_replication":"https://pith.science/pith/P6B6BIDH2SZZXC5ZD3VTJ3NZZY/action/replication_record"}},"created_at":"2026-05-18T01:09:20.929380+00:00","updated_at":"2026-05-18T01:09:20.929380+00:00"}