{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:GHDO5I3OLOOV2OHOR5R63LEL7P","short_pith_number":"pith:GHDO5I3O","schema_version":"1.0","canonical_sha256":"31c6eea36e5b9d5d38ee8f63edac8bfbd490a114e2da6b5f96cc18fd80f97357","source":{"kind":"arxiv","id":"0809.2533","version":1},"attestation_state":"computed","paper":{"title":"Variational Monte-Carlo studies of Gossamer Superconductivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Fu-Chun Zhang, Qiang-Hua Wang, Siegfried Guertler","submitted_at":"2008-09-15T14:26:19Z","abstract_excerpt":"We use a partially Gutzwiller projected BCS d-wave wavefunction with an antiferromagentic weighting factor to study the ground state phase diagram of a half filled Hubbard-Heisenberg model in a square lattice with nearest neighbor hopping $t$ and a diagonal hopping $t'$. The calculations are carried out by using variational Monte Carlo method which treats the Gutzwiller projection explicitly. At large on-site Coulomb interaction $U$, the ground state is antiferromagnetic. As $U$ decreases, the ground state becomes superconducting and eventually metallic. The phase diagram is obtained by extens"},"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":"0809.2533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-09-15T14:26:19Z","cross_cats_sorted":[],"title_canon_sha256":"a6e76c462b6fe2249544211067d8128ac5f2426a09ec0d3e3c2f24af28736a19","abstract_canon_sha256":"3ab72b7ce3446f3f0fc29db174f0406b974f0ed77046c225858a605fc0d8270f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:34.595353Z","signature_b64":"bWCpPSygxsLRV5D+PcGvgY6ffTUH+xI4KN50JNgHva3c/E0lIeG1RB0O20n7bS0A+IxnQjeGIDrWMV2mk7a0Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31c6eea36e5b9d5d38ee8f63edac8bfbd490a114e2da6b5f96cc18fd80f97357","last_reissued_at":"2026-05-18T02:15:34.594762Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:34.594762Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Variational Monte-Carlo studies of Gossamer Superconductivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Fu-Chun Zhang, Qiang-Hua Wang, Siegfried Guertler","submitted_at":"2008-09-15T14:26:19Z","abstract_excerpt":"We use a partially Gutzwiller projected BCS d-wave wavefunction with an antiferromagentic weighting factor to study the ground state phase diagram of a half filled Hubbard-Heisenberg model in a square lattice with nearest neighbor hopping $t$ and a diagonal hopping $t'$. The calculations are carried out by using variational Monte Carlo method which treats the Gutzwiller projection explicitly. At large on-site Coulomb interaction $U$, the ground state is antiferromagnetic. As $U$ decreases, the ground state becomes superconducting and eventually metallic. The phase diagram is obtained by extens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.2533","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":"0809.2533","created_at":"2026-05-18T02:15:34.594838+00:00"},{"alias_kind":"arxiv_version","alias_value":"0809.2533v1","created_at":"2026-05-18T02:15:34.594838+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.2533","created_at":"2026-05-18T02:15:34.594838+00:00"},{"alias_kind":"pith_short_12","alias_value":"GHDO5I3OLOOV","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"GHDO5I3OLOOV2OHO","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"GHDO5I3O","created_at":"2026-05-18T12:25:57.157939+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/GHDO5I3OLOOV2OHOR5R63LEL7P","json":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P.json","graph_json":"https://pith.science/api/pith-number/GHDO5I3OLOOV2OHOR5R63LEL7P/graph.json","events_json":"https://pith.science/api/pith-number/GHDO5I3OLOOV2OHOR5R63LEL7P/events.json","paper":"https://pith.science/paper/GHDO5I3O"},"agent_actions":{"view_html":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P","download_json":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P.json","view_paper":"https://pith.science/paper/GHDO5I3O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0809.2533&json=true","fetch_graph":"https://pith.science/api/pith-number/GHDO5I3OLOOV2OHOR5R63LEL7P/graph.json","fetch_events":"https://pith.science/api/pith-number/GHDO5I3OLOOV2OHOR5R63LEL7P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P/action/storage_attestation","attest_author":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P/action/author_attestation","sign_citation":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P/action/citation_signature","submit_replication":"https://pith.science/pith/GHDO5I3OLOOV2OHOR5R63LEL7P/action/replication_record"}},"created_at":"2026-05-18T02:15:34.594838+00:00","updated_at":"2026-05-18T02:15:34.594838+00:00"}