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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","year":2018}],"snapshot_sha256":"a90332a6cad9d2d337cc96be68b794e832e3856ee3458759cb5ac9cf88baeeb8"},"source":{"id":"2605.01388","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-09T18:22:29.840120Z","id":"130ab7c0-2a5a-4a32-afe7-cdfe5cbdceea","model_set":{"reader":"grok-4.3"},"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","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.","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. 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