{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:C4JEYN7V66QGESY6B24YJMTRLQ","short_pith_number":"pith:C4JEYN7V","schema_version":"1.0","canonical_sha256":"17124c37f5f7a0624b1e0eb984b2715c04d7d89555c57de3a6910c17cf8ae149","source":{"kind":"arxiv","id":"0811.0590","version":2},"attestation_state":"computed","paper":{"title":"Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"C. L. Henley, Sumiran Pujari","submitted_at":"2008-11-04T19:59:28Z","abstract_excerpt":"What kind of lattice Hamiltonian manifestly has an ordered state with spontaneous orbital currents? We consider interacting spinless fermions on an array of square plaquettes, connected by weak hopping; the array geometry may be a 2 x 2L ladder, a 2 x 2 x 2L \"tube\", or a 2L x 2L square grid. At half filling, we derive an effective Hamiltonian in terms of pseudospins, of which one component represents orbital currents, and find the conditions sufficient for orbital current long-range order. We consider spinfull variants of the aforesaid spinless models and make contact with other spinfull model"},"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":"0811.0590","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-11-04T19:59:28Z","cross_cats_sorted":[],"title_canon_sha256":"ab3d30c6de960d929e7802df9b86e25eb183926f5d624edc25eeb00add6fc38c","abstract_canon_sha256":"bd83d3c131bd1464b4d153452a091100bb88825196561e32549c8062a776b958"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:09.237545Z","signature_b64":"c2u+EQpvrbLw645GRSRgpI5hyIJhmzvY88F5aI3m59njputDztFkrFPM6uLsxIbLBF1TuFFVym44b1ovxMWwCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17124c37f5f7a0624b1e0eb984b2715c04d7d89555c57de3a6910c17cf8ae149","last_reissued_at":"2026-05-18T03:24:09.236783Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:09.236783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"C. L. Henley, Sumiran Pujari","submitted_at":"2008-11-04T19:59:28Z","abstract_excerpt":"What kind of lattice Hamiltonian manifestly has an ordered state with spontaneous orbital currents? We consider interacting spinless fermions on an array of square plaquettes, connected by weak hopping; the array geometry may be a 2 x 2L ladder, a 2 x 2 x 2L \"tube\", or a 2L x 2L square grid. At half filling, we derive an effective Hamiltonian in terms of pseudospins, of which one component represents orbital currents, and find the conditions sufficient for orbital current long-range order. We consider spinfull variants of the aforesaid spinless models and make contact with other spinfull model"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.0590","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":"0811.0590","created_at":"2026-05-18T03:24:09.236913+00:00"},{"alias_kind":"arxiv_version","alias_value":"0811.0590v2","created_at":"2026-05-18T03:24:09.236913+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.0590","created_at":"2026-05-18T03:24:09.236913+00:00"},{"alias_kind":"pith_short_12","alias_value":"C4JEYN7V66QG","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"C4JEYN7V66QGESY6","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"C4JEYN7V","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/C4JEYN7V66QGESY6B24YJMTRLQ","json":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ.json","graph_json":"https://pith.science/api/pith-number/C4JEYN7V66QGESY6B24YJMTRLQ/graph.json","events_json":"https://pith.science/api/pith-number/C4JEYN7V66QGESY6B24YJMTRLQ/events.json","paper":"https://pith.science/paper/C4JEYN7V"},"agent_actions":{"view_html":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ","download_json":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ.json","view_paper":"https://pith.science/paper/C4JEYN7V","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0811.0590&json=true","fetch_graph":"https://pith.science/api/pith-number/C4JEYN7V66QGESY6B24YJMTRLQ/graph.json","fetch_events":"https://pith.science/api/pith-number/C4JEYN7V66QGESY6B24YJMTRLQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ/action/storage_attestation","attest_author":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ/action/author_attestation","sign_citation":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ/action/citation_signature","submit_replication":"https://pith.science/pith/C4JEYN7V66QGESY6B24YJMTRLQ/action/replication_record"}},"created_at":"2026-05-18T03:24:09.236913+00:00","updated_at":"2026-05-18T03:24:09.236913+00:00"}