{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:SSZV5ZFH2CYDDKE2L3Z27BNXII","short_pith_number":"pith:SSZV5ZFH","schema_version":"1.0","canonical_sha256":"94b35ee4a7d0b031a89a5ef3af85b74225c72769cf01be95cd3d6db6cfbb1c1d","source":{"kind":"arxiv","id":"1903.08267","version":1},"attestation_state":"computed","paper":{"title":"The spectral function of Mott-insulating Hubbard ladders: From fractionalized excitations to coherent quasi-particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Adrian E. Feiguin, Chun Yang","submitted_at":"2019-03-19T21:48:19Z","abstract_excerpt":"We study the spectral function of two-leg Hubbard ladders with the time-dependent density matrix renormalization group method (tDMRG). The high-resolution spectrum displays features of spin-charge separation and a scattering continuum of excitations with coherent bands of bound states `leaking' from it. As the inter-leg hopping is increased, the continuum in the bonding channel moves to higher energies and spinon and holon branches merge into a single coherent quasi-particle band. Simultaneously, the spectrum undergoes a crossover from a regime with two minima at incommensurate values of $k_x$"},"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":"1903.08267","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-19T21:48:19Z","cross_cats_sorted":[],"title_canon_sha256":"4235ad6bf2363d54b6fd56ee9ca25a3138bbc52fcb1de67845654d9336ffd21f","abstract_canon_sha256":"d4a0125e9f4b7e761c87851520a2f0c7a68e939895b270e3ca57c3a8eb21dcfe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:02.896567Z","signature_b64":"sJIW6i77+ex5VhnBsCGKYMAgKCvUb/NPO4Uf+ZeSquECuqrw3RmoHIpKMSH0DfVRn2kDjul5wkVz7TLrDvbkAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94b35ee4a7d0b031a89a5ef3af85b74225c72769cf01be95cd3d6db6cfbb1c1d","last_reissued_at":"2026-05-17T23:43:02.896182Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:02.896182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The spectral function of Mott-insulating Hubbard ladders: From fractionalized excitations to coherent quasi-particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Adrian E. Feiguin, Chun Yang","submitted_at":"2019-03-19T21:48:19Z","abstract_excerpt":"We study the spectral function of two-leg Hubbard ladders with the time-dependent density matrix renormalization group method (tDMRG). The high-resolution spectrum displays features of spin-charge separation and a scattering continuum of excitations with coherent bands of bound states `leaking' from it. As the inter-leg hopping is increased, the continuum in the bonding channel moves to higher energies and spinon and holon branches merge into a single coherent quasi-particle band. Simultaneously, the spectrum undergoes a crossover from a regime with two minima at incommensurate values of $k_x$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.08267","kind":"arxiv","version":1},"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":"1903.08267","created_at":"2026-05-17T23:43:02.896244+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.08267v1","created_at":"2026-05-17T23:43:02.896244+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.08267","created_at":"2026-05-17T23:43:02.896244+00:00"},{"alias_kind":"pith_short_12","alias_value":"SSZV5ZFH2CYD","created_at":"2026-05-18T12:33:27.125529+00:00"},{"alias_kind":"pith_short_16","alias_value":"SSZV5ZFH2CYDDKE2","created_at":"2026-05-18T12:33:27.125529+00:00"},{"alias_kind":"pith_short_8","alias_value":"SSZV5ZFH","created_at":"2026-05-18T12:33:27.125529+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/SSZV5ZFH2CYDDKE2L3Z27BNXII","json":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII.json","graph_json":"https://pith.science/api/pith-number/SSZV5ZFH2CYDDKE2L3Z27BNXII/graph.json","events_json":"https://pith.science/api/pith-number/SSZV5ZFH2CYDDKE2L3Z27BNXII/events.json","paper":"https://pith.science/paper/SSZV5ZFH"},"agent_actions":{"view_html":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII","download_json":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII.json","view_paper":"https://pith.science/paper/SSZV5ZFH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.08267&json=true","fetch_graph":"https://pith.science/api/pith-number/SSZV5ZFH2CYDDKE2L3Z27BNXII/graph.json","fetch_events":"https://pith.science/api/pith-number/SSZV5ZFH2CYDDKE2L3Z27BNXII/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII/action/storage_attestation","attest_author":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII/action/author_attestation","sign_citation":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII/action/citation_signature","submit_replication":"https://pith.science/pith/SSZV5ZFH2CYDDKE2L3Z27BNXII/action/replication_record"}},"created_at":"2026-05-17T23:43:02.896244+00:00","updated_at":"2026-05-17T23:43:02.896244+00:00"}