{"paper":{"title":"Tracking doublon-holon dynamics in high-harmonic generation from Mott insulators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Mott insulators exhibit a filling-dependent crossover in high-harmonic generation from intraband Bloch response at low density to interband doublon-holon processes near half filling.","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Bo Li, Hui-Ru Li, Ruifeng Lu, Tao-Yuan Du","submitted_at":"2026-05-02T11:21:49Z","abstract_excerpt":"High-harmonic generation (HHG) in strongly correlated Mott insulators is investigated using exact diagonalization and time-dependent density-matrix propagation of a laser-driven one-dimensional Hubbard chain. By projecting onto equilibrium Hubbard bands, we use the doublon population and its dynamics as a diagnostic to analyze intraband (spin-wave-like) and interband (doublon-holon creation) excitation channels. A filling-dependent crossover emerges: Bloch-like intraband response at dilute filling, mixed dynamics at intermediate filling, and interband-dominated HHG with plateau and cutoff near"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"A filling-dependent crossover emerges: Bloch-like intraband response at dilute filling, mixed dynamics at intermediate filling, and interband-dominated HHG with plateau and cutoff near half filling. In the considered parameter range, increasing interaction strength U strongly suppresses interband contributions through the enlarged Mott gap and correlation-induced localization.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The one-dimensional Hubbard chain with exact diagonalization and time-dependent density-matrix propagation sufficiently captures the essential physics of real three-dimensional Mott insulators under strong laser driving.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"In the 1D Hubbard model, HHG crosses over from Bloch-like intraband at low filling to interband-dominated with plateau near half filling, with stronger U suppressing interband contributions via the Mott gap.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Mott insulators exhibit a filling-dependent crossover in high-harmonic generation from intraband Bloch response at low density to interband doublon-holon processes near half filling.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"0f93533832bc0fca121a5aa35e54fa732e0c862eeafef7e734e5dced5c7ebe10"},"source":{"id":"2605.01388","kind":"arxiv","version":1},"verdict":{"id":"130ab7c0-2a5a-4a32-afe7-cdfe5cbdceea","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-09T18:22:29.840120Z","strongest_claim":"A filling-dependent crossover emerges: Bloch-like intraband response at dilute filling, mixed dynamics at intermediate filling, and interband-dominated HHG with plateau and cutoff near half filling. In the considered parameter range, increasing interaction strength U strongly suppresses interband contributions through the enlarged Mott gap and correlation-induced localization.","one_line_summary":"In the 1D Hubbard model, HHG crosses over from Bloch-like intraband at low filling to interband-dominated with plateau near half filling, with stronger U suppressing interband contributions via the Mott gap.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The one-dimensional Hubbard chain with exact diagonalization and time-dependent density-matrix propagation sufficiently captures the essential physics of real three-dimensional Mott insulators under strong laser driving.","pith_extraction_headline":"Mott insulators exhibit a filling-dependent crossover in high-harmonic generation from intraband Bloch response at low density to interband doublon-holon processes near half filling."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.01388/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-20T18:34:18.493193Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T17:18:47.429163Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"7af1dbaffaf2a2241bbd4b45ff60003af26ec142f089c66639f933a2780a8ec2"},"references":{"count":43,"sample":[{"doi":"","year":1988,"title":"M. 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Phys. 20, 1546–1557 (2024)","work_id":"59d72add-f292-45ec-8858-cc0364b1f476","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2018,"title":"R. Silva, I. V. Blinov, A. N. Rubtsov, O. Smirnova, and M. Ivanov, High-harmonic spectroscopy of ultra- fast many-body dynamics in strongly correlated systems, Nat. Photon. 12, 266 (2018)","work_id":"e52326c1-ab57-4361-9a86-acb3d5e58cff","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":43,"snapshot_sha256":"a90332a6cad9d2d337cc96be68b794e832e3856ee3458759cb5ac9cf88baeeb8","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"}