{"paper":{"title":"Long-range resonances in quasiperiodic many-body localization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Quasiperiodic many-body localization features a broad regime of long-range resonances at strong potentials.","cross_cats":["cond-mat.quant-gas","cond-mat.str-el","quant-ph"],"primary_cat":"cond-mat.dis-nn","authors_text":"Ashirbad Padhan, Fabien Alet, Jeanne Colbois, Nicolas Laflorencie","submitted_at":"2025-10-28T17:55:20Z","abstract_excerpt":"We investigate long-range resonances in quasiperiodic many-body localized (MBL) systems. Focusing on the Heisenberg chain in a deterministic Aubry-Andr\\'{e}\n  potential, we complement standard diagnostics by analyzing the structure of long-distance pairwise correlations at high energy. Contrary to the expectation that the ergodic-MBL transition in quasiperiodic systems should be sharper due to the absence of Griffiths regions, we uncover a broad unconventional regime at strong quasiperiodic potential, characterized by fat-tailed distributions of longitudinal correlations at long distance. This"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Contrary to the expectation that the ergodic-MBL transition in quasiperiodic systems should be sharper due to the absence of Griffiths regions, we uncover a broad unconventional regime at strong quasiperiodic potential, characterized by fat-tailed distributions of longitudinal correlations at long distance. This reveals the presence of atypical eigenstates with strong long-range correlations in a regime where standard diagnostics indicate stable MBL.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That standard MBL diagnostics such as level statistics or entanglement entropy are sufficient to confirm the stability of the MBL phase and the absence of long-range resonances, an assumption challenged by the observed fat-tailed correlation distributions at strong potentials.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Quasiperiodic MBL systems host a broad unconventional regime with fat-tailed long-distance correlations and resonant cat states beyond what standard diagnostics detect.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Quasiperiodic many-body localization features a broad regime of long-range resonances at strong potentials.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"1a215ba8abe020d9f68e2a0a6a31e913af1c1f50b8c4d025d811ed2eb1071c08"},"source":{"id":"2510.24704","kind":"arxiv","version":2},"verdict":{"id":"99b1fdd9-c241-4862-9b08-0186349e941b","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T03:32:58.657421Z","strongest_claim":"Contrary to the expectation that the ergodic-MBL transition in quasiperiodic systems should be sharper due to the absence of Griffiths regions, we uncover a broad unconventional regime at strong quasiperiodic potential, characterized by fat-tailed distributions of longitudinal correlations at long distance. This reveals the presence of atypical eigenstates with strong long-range correlations in a regime where standard diagnostics indicate stable MBL.","one_line_summary":"Quasiperiodic MBL systems host a broad unconventional regime with fat-tailed long-distance correlations and resonant cat states beyond what standard diagnostics detect.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That standard MBL diagnostics such as level statistics or entanglement entropy are sufficient to confirm the stability of the MBL phase and the absence of long-range resonances, an assumption challenged by the observed fat-tailed correlation distributions at strong potentials.","pith_extraction_headline":"Quasiperiodic many-body localization features a broad regime of long-range resonances at strong potentials."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2510.24704/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":113,"sample":[{"doi":"","year":1980,"title":"L. Fleishman and P. W. Anderson, Interactions and the ander- son transition, Phys. Rev. B21, 2366 (1980)","work_id":"db75336c-baf4-440f-ad62-4b1bf3b88358","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1997,"title":"P. Jacquod and D. L. Shepelyansky, Emergence of Quantum ChaosinFiniteInteractingFermiSystems,Phys.Rev.Lett.79, 1837 (1997)","work_id":"b18d8a50-e917-4999-a066-0304df9a51ad","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1997,"title":"B. L. Altshuler, Y. Gefen, A. Kamenev, and L. S. Levitov, Quasiparticle lifetime in a finite system: A nonperturbative approach, Phys. Rev. Lett.78, 2803 (1997)","work_id":"bf9e0169-4325-4d10-9c42-fd2b5bd08aae","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2005,"title":"I. V. Gornyi, A. D. Mirlin, and D. G. Polyakov, Interacting Electrons in Disordered Wires: Anderson Localization and Low-T Transport, Phys. Rev. Lett.95, 206603 (2005)","work_id":"c2ac003f-3396-4d1b-9f4e-33d8ab692079","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2006,"title":"D. Basko, I. Aleiner, and B. Altshuler, Metal–insulator transi- tion in a weakly interacting many-electron system with local- izedsingle-particlestates,AnnalsofPhysics321,1126(2006)","work_id":"9d473584-53ab-4012-9cdd-c664bb8f055f","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":113,"snapshot_sha256":"42720ed488e459a2358437ee017054187d8c327724762f33307a11aebaf0bbc5","internal_anchors":1},"formal_canon":{"evidence_count":2,"snapshot_sha256":"c71304b3e09a166879b4a24c035e8eb2f23b53b8a0d850b6f5c0faf2cf10b8af"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}