{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:NWOAU7PBF2TNF4DX3WYWEPGT5M","short_pith_number":"pith:NWOAU7PB","schema_version":"1.0","canonical_sha256":"6d9c0a7de12ea6d2f077ddb1623cd3eb13e665973dccf6fd151860379e75affc","source":{"kind":"arxiv","id":"1608.07717","version":2},"attestation_state":"computed","paper":{"title":"Magnetic excitation spectra of strongly correlated quasi-one dimensional systems: Heisenberg versus Hubbard-like behavior","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Nocera, E. Dagotto, G. Alvarez, J. Fernandez-Baca, N. Patel","submitted_at":"2016-08-27T15:14:11Z","abstract_excerpt":"We study the effects of charge degrees of freedom on the spin excitation dynamics in quasi-one dimensional magnetic materials. Using the density matrix renormalization group method, we calculate the dynamical spin structure factor of the Hubbard model at half electronic filling on a chain and on a ladder geometry, and compare the results with those obtained using the Heisenberg model, where charge degrees of freedom are considered frozen. For both chains and two-leg ladders, we find that the Hubbard model spectrum qualitatively resembles the Heisenberg spectrum -- with low-energy peaks resembl"},"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":"1608.07717","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-08-27T15:14:11Z","cross_cats_sorted":[],"title_canon_sha256":"98f07baddad3d2789247218aee6b674580a6419ff5092522c6f8b86d70ca39e9","abstract_canon_sha256":"22e347fb9cbacc0e3f03c7390d12e2874f3d7f315fc3a4ced88c0d73fc61f003"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:41.909742Z","signature_b64":"PcSL3z3NoElSZnonoPIEtMRGZlZFKYmTl13g0t4W9t67Ggj7mIqmjJnjfJr084+TDtA57IqOXAw1Mi60J8ACBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d9c0a7de12ea6d2f077ddb1623cd3eb13e665973dccf6fd151860379e75affc","last_reissued_at":"2026-05-18T00:55:41.909249Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:41.909249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Magnetic excitation spectra of strongly correlated quasi-one dimensional systems: Heisenberg versus Hubbard-like behavior","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Nocera, E. Dagotto, G. Alvarez, J. Fernandez-Baca, N. Patel","submitted_at":"2016-08-27T15:14:11Z","abstract_excerpt":"We study the effects of charge degrees of freedom on the spin excitation dynamics in quasi-one dimensional magnetic materials. Using the density matrix renormalization group method, we calculate the dynamical spin structure factor of the Hubbard model at half electronic filling on a chain and on a ladder geometry, and compare the results with those obtained using the Heisenberg model, where charge degrees of freedom are considered frozen. For both chains and two-leg ladders, we find that the Hubbard model spectrum qualitatively resembles the Heisenberg spectrum -- with low-energy peaks resembl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.07717","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":"1608.07717","created_at":"2026-05-18T00:55:41.909326+00:00"},{"alias_kind":"arxiv_version","alias_value":"1608.07717v2","created_at":"2026-05-18T00:55:41.909326+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.07717","created_at":"2026-05-18T00:55:41.909326+00:00"},{"alias_kind":"pith_short_12","alias_value":"NWOAU7PBF2TN","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_16","alias_value":"NWOAU7PBF2TNF4DX","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_8","alias_value":"NWOAU7PB","created_at":"2026-05-18T12:30:36.002864+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/NWOAU7PBF2TNF4DX3WYWEPGT5M","json":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M.json","graph_json":"https://pith.science/api/pith-number/NWOAU7PBF2TNF4DX3WYWEPGT5M/graph.json","events_json":"https://pith.science/api/pith-number/NWOAU7PBF2TNF4DX3WYWEPGT5M/events.json","paper":"https://pith.science/paper/NWOAU7PB"},"agent_actions":{"view_html":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M","download_json":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M.json","view_paper":"https://pith.science/paper/NWOAU7PB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1608.07717&json=true","fetch_graph":"https://pith.science/api/pith-number/NWOAU7PBF2TNF4DX3WYWEPGT5M/graph.json","fetch_events":"https://pith.science/api/pith-number/NWOAU7PBF2TNF4DX3WYWEPGT5M/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M/action/storage_attestation","attest_author":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M/action/author_attestation","sign_citation":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M/action/citation_signature","submit_replication":"https://pith.science/pith/NWOAU7PBF2TNF4DX3WYWEPGT5M/action/replication_record"}},"created_at":"2026-05-18T00:55:41.909326+00:00","updated_at":"2026-05-18T00:55:41.909326+00:00"}