{"paper":{"title":"Quantum simulation of interlayer charge ordering in Kagome frustrated-magnet","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Interlayer exchange drives a sharp ferroelectric-to-antiferroelectric Ice-II transition in bilayer Kagome spin ice at J_perp/J1 approximately 0.042.","cross_cats":["cond-mat.dis-nn","cond-mat.mtrl-sci","cond-mat.stat-mech","quant-ph"],"primary_cat":"cond-mat.str-el","authors_text":"Kumar Ghosh, Sabre Kais","submitted_at":"2026-03-29T19:35:46Z","abstract_excerpt":"The interplay between interlayer coupling and quantum fluctuations governs charge ordering and defect dynamics in Kagome systems, yet these parameters are intrinsically entangled in existing Kagome metals and artificial spin-ice platforms, preventing their independent control. Here we realize a bilayer Kagome frustrated-magnet simulator comprising 1,536 connected spins on D-Wave quantum annealer, in which the effective quantum drive, $\\Gamma_{\\rm eff}$, and interlayer exchange, $J_{\\perp}$, are independently programmable. We observe an interlayer-driven transition from ferroelectric to antifer"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Interlayer exchange drives a sharp ferroelectric-to-antiferroelectric Ice-II transition at (J⊥/J1)*≈0.042, stable across five decades of annealing time and forbidden in any single-layer system.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The D-Wave Advantage2 embedding and annealing schedule faithfully reproduce the target bilayer Kagome Hamiltonian without dominant hardware noise or embedding errors that would shift the reported transition point.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Bilayer Kagome spin ice on quantum annealer exhibits sharp Ice-II transition at J_perp/J1 ≈ 0.042 with independent control of monopoles via quantum drive and charge order via interlayer coupling.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Interlayer exchange drives a sharp ferroelectric-to-antiferroelectric Ice-II transition in bilayer Kagome spin ice at J_perp/J1 approximately 0.042.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"7e74556aa0ebb72902209142b99f1856346f430b87d31709a2ac58b943602905"},"source":{"id":"2603.27826","kind":"arxiv","version":3},"verdict":{"id":"d8c22ff8-b6ca-4b79-82a5-8380764f3996","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T21:19:49.239347Z","strongest_claim":"Interlayer exchange drives a sharp ferroelectric-to-antiferroelectric Ice-II transition at (J⊥/J1)*≈0.042, stable across five decades of annealing time and forbidden in any single-layer system.","one_line_summary":"Bilayer Kagome spin ice on quantum annealer exhibits sharp Ice-II transition at J_perp/J1 ≈ 0.042 with independent control of monopoles via quantum drive and charge order via interlayer coupling.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The D-Wave Advantage2 embedding and annealing schedule faithfully reproduce the target bilayer Kagome Hamiltonian without dominant hardware noise or embedding errors that would shift the reported transition point.","pith_extraction_headline":"Interlayer exchange drives a sharp ferroelectric-to-antiferroelectric Ice-II transition in bilayer Kagome spin ice at J_perp/J1 approximately 0.042."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.27826/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":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}