{"paper":{"title":"Orthogonalization speed-up from quantum coherence after a sudden quench","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Quantum coherence reduces the minimal time for a state to orthogonalize after an interaction quench.","cross_cats":["cond-mat.quant-gas","cond-mat.stat-mech"],"primary_cat":"quant-ph","authors_text":"Beatrice Donelli, Francesco Scazza, Gabriele De Chiara, Stefano Gherardini","submitted_at":"2025-07-28T20:12:39Z","abstract_excerpt":"We introduce a nonequilibrium phenomenon, reminiscent of Anderson's orthogonality catastrophe (OC), that arises in the transient dynamics following an interaction quench between a quantum system and a localized defect. Even if the system comprises only a single particle, the overlap between the asymptotic and initial superposition states vanishes according to a power-law scaling with the number of energy eigenstates entering the initial state and an exponent that depends on the interaction strength. The presence of quantum coherence in the initial state is reflected onto the discrete counterpa"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The positivity loss of the work distribution is directly linked with a reduction of the minimal time imposed by quantum mechanics for the state to orthogonalize, thus leading to a quantum coherence-enhanced state-orthogonalization.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that the overlap between the asymptotic and initial superposition states vanishes according to a power-law scaling with the number of energy eigenstates entering the initial state and an exponent that depends on the interaction strength, even when the system comprises only a single particle.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Quantum coherence enhances the speed of state orthogonalization after an interaction quench, shown through power-law overlap decay and positivity loss in the work distribution.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Quantum coherence reduces the minimal time for a state to orthogonalize after an interaction quench.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"7a59cc561143a7fd888e761a207c2134cd2ef2886b57babcee5e301f7d1f6f8d"},"source":{"id":"2507.21313","kind":"arxiv","version":3},"verdict":{"id":"6346c45b-4ab4-4b00-9a63-1c724d25908e","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T01:37:26.501377Z","strongest_claim":"The positivity loss of the work distribution is directly linked with a reduction of the minimal time imposed by quantum mechanics for the state to orthogonalize, thus leading to a quantum coherence-enhanced state-orthogonalization.","one_line_summary":"Quantum coherence enhances the speed of state orthogonalization after an interaction quench, shown through power-law overlap decay and positivity loss in the work distribution.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The assumption that the overlap between the asymptotic and initial superposition states vanishes according to a power-law scaling with the number of energy eigenstates entering the initial state and an exponent that depends on the interaction strength, even when the system comprises only a single particle.","pith_extraction_headline":"Quantum coherence reduces the minimal time for a state to orthogonalize after an interaction quench."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.21313/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"5230524231daa4ea7e08a76a192c7b82b596970b18f66f59bff43acfd0f22a01"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}