{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:YDINTMZHWQKQSJE4JT5XTWHTYG","short_pith_number":"pith:YDINTMZH","schema_version":"1.0","canonical_sha256":"c0d0d9b327b41509249c4cfb79d8f3c1b46d1347034b818dee87fb0fc8930d89","source":{"kind":"arxiv","id":"1202.4627","version":2},"attestation_state":"computed","paper":{"title":"Quantum critical behavior in three-dimensional one-band Hubbard model at half filling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Naoum Karchev","submitted_at":"2012-02-21T13:08:26Z","abstract_excerpt":"One-band Hubbard model with hopping parameter $t$ and Coulomb repulsion $U$ is considered at half filling. By means of the Schwinger bosons and slave Fermions representation of the electron operators and integrating out the spin-singlet Fermi fields an effective Heisenberg model with antiferromagnetic exchange constant is obtained for vectors which identifies the local orientation of the spin of the itinerant electrons. The amplitude of the spin vectors is an effective spin of the itinerant electrons accounting for the fact that some sites, in the ground state, are doubly occupied or empty. Ac"},"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":"1202.4627","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-02-21T13:08:26Z","cross_cats_sorted":[],"title_canon_sha256":"045238f113f2e5cfb58c3fea0a782ab1a63725920865498e1201a37b4657aa80","abstract_canon_sha256":"f215012650da2eb4f0f809e1c04483855c3f599e65fa14571c2b51ed2ba2f7c0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:22.905666Z","signature_b64":"blJNxTvF4PA+AugLI5Ca1Za3XT9hzRhcSw7oa5+AgadR4ZljFqVbSNaUzaycUMghEfuXYoctHHoMwtgMXVa7Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0d0d9b327b41509249c4cfb79d8f3c1b46d1347034b818dee87fb0fc8930d89","last_reissued_at":"2026-05-18T01:58:22.905102Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:22.905102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum critical behavior in three-dimensional one-band Hubbard model at half filling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Naoum Karchev","submitted_at":"2012-02-21T13:08:26Z","abstract_excerpt":"One-band Hubbard model with hopping parameter $t$ and Coulomb repulsion $U$ is considered at half filling. By means of the Schwinger bosons and slave Fermions representation of the electron operators and integrating out the spin-singlet Fermi fields an effective Heisenberg model with antiferromagnetic exchange constant is obtained for vectors which identifies the local orientation of the spin of the itinerant electrons. The amplitude of the spin vectors is an effective spin of the itinerant electrons accounting for the fact that some sites, in the ground state, are doubly occupied or empty. Ac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4627","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":"1202.4627","created_at":"2026-05-18T01:58:22.905170+00:00"},{"alias_kind":"arxiv_version","alias_value":"1202.4627v2","created_at":"2026-05-18T01:58:22.905170+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4627","created_at":"2026-05-18T01:58:22.905170+00:00"},{"alias_kind":"pith_short_12","alias_value":"YDINTMZHWQKQ","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_16","alias_value":"YDINTMZHWQKQSJE4","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_8","alias_value":"YDINTMZH","created_at":"2026-05-18T12:27:27.928770+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/YDINTMZHWQKQSJE4JT5XTWHTYG","json":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG.json","graph_json":"https://pith.science/api/pith-number/YDINTMZHWQKQSJE4JT5XTWHTYG/graph.json","events_json":"https://pith.science/api/pith-number/YDINTMZHWQKQSJE4JT5XTWHTYG/events.json","paper":"https://pith.science/paper/YDINTMZH"},"agent_actions":{"view_html":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG","download_json":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG.json","view_paper":"https://pith.science/paper/YDINTMZH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1202.4627&json=true","fetch_graph":"https://pith.science/api/pith-number/YDINTMZHWQKQSJE4JT5XTWHTYG/graph.json","fetch_events":"https://pith.science/api/pith-number/YDINTMZHWQKQSJE4JT5XTWHTYG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG/action/storage_attestation","attest_author":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG/action/author_attestation","sign_citation":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG/action/citation_signature","submit_replication":"https://pith.science/pith/YDINTMZHWQKQSJE4JT5XTWHTYG/action/replication_record"}},"created_at":"2026-05-18T01:58:22.905170+00:00","updated_at":"2026-05-18T01:58:22.905170+00:00"}