{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:3WUL75ZXTXGWF4DBV2NM7XAUA7","short_pith_number":"pith:3WUL75ZX","schema_version":"1.0","canonical_sha256":"dda8bff7379dcd62f061ae9acfdc1407c432a873ce74fc1fe0ae5547bed1f19e","source":{"kind":"arxiv","id":"0712.2838","version":2},"attestation_state":"computed","paper":{"title":"Kinks and Mid-Infrared Optical Conductivity from Strong Electron Correlation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Dimitrios Galanakis, Philip Phillips, Shiladitya Chakraborty","submitted_at":"2007-12-17T22:44:43Z","abstract_excerpt":"We compute the one-particle spectral function and the optical conductivity for the 2-d Hubbard model on a square lattice. The computational method is cellular dynamical mean-field theory (CDMFT) in which a 4-site Hubbard plaquette is embedded in a self-consistent bath. We obtain a `kink' feature in the dispersion of the spectral function and a mid-infrared (mid-IR) absorption peak in the optical conductivity, consistent with experimental data. Of the 256 plaquette states, only a single state which has d$_{x^2-y^2}$ symmetry contributes to the mid-IR, thereby suggesting a direct link with the p"},"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":"0712.2838","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2007-12-17T22:44:43Z","cross_cats_sorted":[],"title_canon_sha256":"aff944becad12e4e359d471b462be69a4d801b4ef4977282bcb560110d7b7e9b","abstract_canon_sha256":"d5beee410b02f0cad2b8fb15b6c933a3b45a5f1752be3229d1dff4870b2cdbc9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:43.176622Z","signature_b64":"iHtfdD+ZBc0MjBATHxRU8AvLPhpOrYxFLV/+et44QfAkQLYLapaxGcQnJBRpFjp1G9JoqUC3DS1EE/nxouZOAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dda8bff7379dcd62f061ae9acfdc1407c432a873ce74fc1fe0ae5547bed1f19e","last_reissued_at":"2026-05-18T03:24:43.175810Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:43.175810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Kinks and Mid-Infrared Optical Conductivity from Strong Electron Correlation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Dimitrios Galanakis, Philip Phillips, Shiladitya Chakraborty","submitted_at":"2007-12-17T22:44:43Z","abstract_excerpt":"We compute the one-particle spectral function and the optical conductivity for the 2-d Hubbard model on a square lattice. The computational method is cellular dynamical mean-field theory (CDMFT) in which a 4-site Hubbard plaquette is embedded in a self-consistent bath. We obtain a `kink' feature in the dispersion of the spectral function and a mid-infrared (mid-IR) absorption peak in the optical conductivity, consistent with experimental data. Of the 256 plaquette states, only a single state which has d$_{x^2-y^2}$ symmetry contributes to the mid-IR, thereby suggesting a direct link with the p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.2838","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":"0712.2838","created_at":"2026-05-18T03:24:43.175943+00:00"},{"alias_kind":"arxiv_version","alias_value":"0712.2838v2","created_at":"2026-05-18T03:24:43.175943+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.2838","created_at":"2026-05-18T03:24:43.175943+00:00"},{"alias_kind":"pith_short_12","alias_value":"3WUL75ZXTXGW","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_16","alias_value":"3WUL75ZXTXGWF4DB","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_8","alias_value":"3WUL75ZX","created_at":"2026-05-18T12:25:54.717736+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/3WUL75ZXTXGWF4DBV2NM7XAUA7","json":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7.json","graph_json":"https://pith.science/api/pith-number/3WUL75ZXTXGWF4DBV2NM7XAUA7/graph.json","events_json":"https://pith.science/api/pith-number/3WUL75ZXTXGWF4DBV2NM7XAUA7/events.json","paper":"https://pith.science/paper/3WUL75ZX"},"agent_actions":{"view_html":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7","download_json":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7.json","view_paper":"https://pith.science/paper/3WUL75ZX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0712.2838&json=true","fetch_graph":"https://pith.science/api/pith-number/3WUL75ZXTXGWF4DBV2NM7XAUA7/graph.json","fetch_events":"https://pith.science/api/pith-number/3WUL75ZXTXGWF4DBV2NM7XAUA7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7/action/storage_attestation","attest_author":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7/action/author_attestation","sign_citation":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7/action/citation_signature","submit_replication":"https://pith.science/pith/3WUL75ZXTXGWF4DBV2NM7XAUA7/action/replication_record"}},"created_at":"2026-05-18T03:24:43.175943+00:00","updated_at":"2026-05-18T03:24:43.175943+00:00"}