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Fang, Nature communications 13, 2496 (2022)","work_id":"4cc038d8-3b60-4e24-871f-c0892ad3ad98","year":2022}],"snapshot_sha256":"4dd838a32937b3e4762d7feb3f4f8f16cf1401f97142e369121d74cc9ae129f0"},"source":{"id":"2605.15541","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-19T14:20:37.786831Z","id":"c5bddde3-62c7-4316-a50f-624ef8ee7b84","model_set":{"reader":"grok-4.3"},"one_line_summary":"Nonlinear spin conductivity in Floquet non-Hermitian d-wave altermagnets separates into quantum-metric, Berry-curvature and dipole terms and is dominated by the bare quantum metric, with polarization reversing both longitudinal and transverse currents.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"In Floquet non-Hermitian d-wave altermagnets the nonlinear spin conductivity is overwhelmingly dominated by the bare quantum metric.","strongest_claim":"Applying this formalism to a Floquet non-Hermitian d-wave altermagnet, we uncover that the nonlinear spin conductivity is overwhelmingly dominated by the bare quantum metric.","weakest_assumption":"The derivation assumes a non-Hermitian phase possessing a spectral line gap; if the gap closes or becomes a point gap, the clean separation into quantum metric, Berry curvature and Berry connection dipole terms no longer holds and the dominance claim is invalidated (abstract, paragraph on general analytical expression)."}},"verdict_id":"c5bddde3-62c7-4316-a50f-624ef8ee7b84"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9b57127944a890ca99a076b0c09db6a3f2640c43f7a6fa58971f7bddbb7c3e2c","target":"record","created_at":"2026-05-20T00:01:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"0ff06d8a9ea0e701755a19efa6ad722ecaab30114939a476a536d1949aabe1c2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-05-15T02:26:10Z","title_canon_sha256":"9c4e0338e07cdccb190b1dd573074b92cf495f196bc2c92ed43b70f4d6134919"},"schema_version":"1.0","source":{"id":"2605.15541","kind":"arxiv","version":1}},"canonical_sha256":"a282de5364b15de216a3b098763320a3d0c90f257784529fcbb6bb0ec87cbcb4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a282de5364b15de216a3b098763320a3d0c90f257784529fcbb6bb0ec87cbcb4","first_computed_at":"2026-05-20T00:01:04.336294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:01:04.336294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eq0Oh2g9YIrpaNoBpdngXULr9wroG48JL7hXM/KLr7AZaEVALtZZROcrJUalhiZ7UAqS/lXMC1aCivhqo/KbAA==","signature_status":"signed_v1","signed_at":"2026-05-20T00:01:04.337012Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.15541","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b57127944a890ca99a076b0c09db6a3f2640c43f7a6fa58971f7bddbb7c3e2c","sha256:2a5eb51a61896a7ef5929d92b21488804ccef8625656438c119b894dfc31a62b"],"state_sha256":"f693f0139b9637655a3bd8f3cf29cd1cf4a1f82510978a700aad5216471c1780"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HETiDMz7pQn3zjCkw89ysBwN7qQXSg5m/+gQWW0SpUrVspTsP3O1u8mK57VtZhMu0E0lvpNovgeEKY9BLRAiBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T04:59:46.751129Z","bundle_sha256":"7516cf881e359b91900ded310651406ab981869025147fe6a80a2c48d3171a57"}}