{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:LU3KBRHLBEU47P2UMNRLZ57WHT","short_pith_number":"pith:LU3KBRHL","schema_version":"1.0","canonical_sha256":"5d36a0c4eb0929cfbf546362bcf7f63ce0d37ff5526bb7858c2d00601f209633","source":{"kind":"arxiv","id":"1911.11499","version":2},"attestation_state":"computed","paper":{"title":"Antiferromagnetic chiral spin density wave and strain-induced Chern insulator in the square lattice Hubbard model with frustration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Jin-Wei Dong, Panagiotis Kotetes, Sen Zhou, Yun-Peng Huang","submitted_at":"2019-11-26T13:00:12Z","abstract_excerpt":"We employ the Hartree-Fock approximation to identify the magnetic ground state of the Hubbard model on a frustrated square lattice. We investigate the phase diagram as a function of the Coulomb repulsion's strength $U$, and the ratio $t'/t$ between the nearest and next nearest neighbor hoppings $t$ and $t'$. At half-filling and for a sufficiently large $U$, an antiferromagnetic chiral spin density wave order with nonzero spin chirality emerges as the ground state in a wide regime of the phase diagram near $t'/t=1/\\sqrt{2}$, where the Fermi surface is well-nested for both $(\\pi,\\pi)$ and $(\\pi,"},"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":"1911.11499","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-11-26T13:00:12Z","cross_cats_sorted":[],"title_canon_sha256":"405676b1f509c52a768b8164adf1ce01f429e39573f2288270a8d1e88d86dd3d","abstract_canon_sha256":"52986249091b5bf6ba39fa3bbd87ea2c56eddc4b0876338fb2887b02700db38f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:52:15.435724Z","signature_b64":"/+Rh7X/GdeC7YBJd3jm74/Jt8DpKnvOnmHxOdV8TJ0VKCdEyT0PKNepc0iImF0pCDHptWhxTY9aD2J1RL+0kCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5d36a0c4eb0929cfbf546362bcf7f63ce0d37ff5526bb7858c2d00601f209633","last_reissued_at":"2026-07-05T01:52:15.435276Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:52:15.435276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Antiferromagnetic chiral spin density wave and strain-induced Chern insulator in the square lattice Hubbard model with frustration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Jin-Wei Dong, Panagiotis Kotetes, Sen Zhou, Yun-Peng Huang","submitted_at":"2019-11-26T13:00:12Z","abstract_excerpt":"We employ the Hartree-Fock approximation to identify the magnetic ground state of the Hubbard model on a frustrated square lattice. We investigate the phase diagram as a function of the Coulomb repulsion's strength $U$, and the ratio $t'/t$ between the nearest and next nearest neighbor hoppings $t$ and $t'$. At half-filling and for a sufficiently large $U$, an antiferromagnetic chiral spin density wave order with nonzero spin chirality emerges as the ground state in a wide regime of the phase diagram near $t'/t=1/\\sqrt{2}$, where the Fermi surface is well-nested for both $(\\pi,\\pi)$ and $(\\pi,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.11499","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1911.11499/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1911.11499","created_at":"2026-07-05T01:52:15.435331+00:00"},{"alias_kind":"arxiv_version","alias_value":"1911.11499v2","created_at":"2026-07-05T01:52:15.435331+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.11499","created_at":"2026-07-05T01:52:15.435331+00:00"},{"alias_kind":"pith_short_12","alias_value":"LU3KBRHLBEU4","created_at":"2026-07-05T01:52:15.435331+00:00"},{"alias_kind":"pith_short_16","alias_value":"LU3KBRHLBEU47P2U","created_at":"2026-07-05T01:52:15.435331+00:00"},{"alias_kind":"pith_short_8","alias_value":"LU3KBRHL","created_at":"2026-07-05T01:52:15.435331+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/LU3KBRHLBEU47P2UMNRLZ57WHT","json":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT.json","graph_json":"https://pith.science/api/pith-number/LU3KBRHLBEU47P2UMNRLZ57WHT/graph.json","events_json":"https://pith.science/api/pith-number/LU3KBRHLBEU47P2UMNRLZ57WHT/events.json","paper":"https://pith.science/paper/LU3KBRHL"},"agent_actions":{"view_html":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT","download_json":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT.json","view_paper":"https://pith.science/paper/LU3KBRHL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1911.11499&json=true","fetch_graph":"https://pith.science/api/pith-number/LU3KBRHLBEU47P2UMNRLZ57WHT/graph.json","fetch_events":"https://pith.science/api/pith-number/LU3KBRHLBEU47P2UMNRLZ57WHT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT/action/storage_attestation","attest_author":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT/action/author_attestation","sign_citation":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT/action/citation_signature","submit_replication":"https://pith.science/pith/LU3KBRHLBEU47P2UMNRLZ57WHT/action/replication_record"}},"created_at":"2026-07-05T01:52:15.435331+00:00","updated_at":"2026-07-05T01:52:15.435331+00:00"}