{"paper":{"title":"Floquet quantum multiparameter estimation with periodic-driving-induced topological phase transition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Near a driving-induced topological phase transition, multiparameter estimation reaches Heisenberg scaling and beyond.","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Fuli Li, Pei Zhang, Yu Yang, Yuyang Tang","submitted_at":"2026-05-06T03:42:30Z","abstract_excerpt":"Periodically driven systems provide a powerful platform for quantum multiparameter estimation. Constructing a static effective Hamiltonian in a proper rotating frame is commonly employed to assess the attainable precision. However, such an approach becomes nonfeasible for more general time-periodically driven systems. To tackle this dilemma, we develop a quantum multiparameter estimation strategy in the Floquet theory framework. The contributions of Floquet eigenmodes, quasienergies, and multi-photon processes to the quantum Fisher information matrix and measurement incompatibility are determi"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"In the vicinity of the TPT boundary, we reveal a pronounced enhancement in the estimation precision of multiple parameters with the Heisenberg limit scaling and even higher. Meanwhile, the measurement incompatibility vanishes in an oscillatory manner, and the stroboscopic projective measurement enables the highest estimation precision achievable.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The Floquet theory framework fully captures the contributions of eigenmodes, quasienergies, and multi-photon processes to the quantum Fisher information matrix and measurement incompatibility for general time-periodically driven systems where static effective Hamiltonian approaches fail.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A Floquet-based strategy for time-periodic quantum systems shows enhanced multiparameter estimation precision near topological phase transitions, reaching Heisenberg scaling or better with vanishing measurement incompatibility under stroboscopic measurements.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Near a driving-induced topological phase transition, multiparameter estimation reaches Heisenberg scaling and beyond.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"9595f6a611c16e63cb07b362e2376b2bbfaecaeb1e9758ee356d0d91d074238e"},"source":{"id":"2605.04463","kind":"arxiv","version":1},"verdict":{"id":"3e20952f-a1b9-4ef4-b549-e33c6ed0d01a","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-08T18:06:02.247115Z","strongest_claim":"In the vicinity of the TPT boundary, we reveal a pronounced enhancement in the estimation precision of multiple parameters with the Heisenberg limit scaling and even higher. Meanwhile, the measurement incompatibility vanishes in an oscillatory manner, and the stroboscopic projective measurement enables the highest estimation precision achievable.","one_line_summary":"A Floquet-based strategy for time-periodic quantum systems shows enhanced multiparameter estimation precision near topological phase transitions, reaching Heisenberg scaling or better with vanishing measurement incompatibility under stroboscopic measurements.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The Floquet theory framework fully captures the contributions of eigenmodes, quasienergies, and multi-photon processes to the quantum Fisher information matrix and measurement incompatibility for general time-periodically driven systems where static effective Hamiltonian approaches fail.","pith_extraction_headline":"Near a driving-induced topological phase transition, multiparameter estimation reaches Heisenberg scaling and beyond."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.04463/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-20T11:42:39.191510Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T23:01:19.875245Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T14:23:13.564467Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"f8519c98792141b0857f7e86518234528b95de2f9454089ff828c38355569d8a"},"references":{"count":75,"sample":[{"doi":"","year":null,"title":"The ratio tan θ = ωSO/ω relates the Lamor frequency ωSO of spin precession to the frequency ω of changing the magnetic field direction","work_id":"3aa53b78-1110-4873-8925-3610155f3e69","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"ihMoICDSZ8G+48oA4+9ARDS790U=","work_id":"bce38168-fd0b-4940-a46f-b991b5f63ee6","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"8Z8zuormByVYUM4eqtd54VWXfHs=","work_id":"04c847e4-0a25-4962-bb23-4e3bafa09748","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2013,"title":"Status Solidi (RRL)–Rapid Res","work_id":"2ff81bbe-7c02-4a32-802a-769e595b638e","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2022,"title":"Zhang X et al 2022 Digital quantum simulation of Flo- quet symmetry-protected topological phases Nature 607 468","work_id":"a09106ba-dc9c-407a-8f4b-a4605fd09350","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":75,"snapshot_sha256":"59803cd81b93dafd394c024998b2c0a0aacf3e649d025c674d34bac5d4e9653f","internal_anchors":0},"formal_canon":{"evidence_count":3,"snapshot_sha256":"d8a336055e693fb0897bc1a12ff6baca79733f3ae84df0f3aa8f5dd598f71cb8"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}