{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:SJ2LPELGQWFNKJUYUZE4IHQIDN","short_pith_number":"pith:SJ2LPELG","schema_version":"1.0","canonical_sha256":"9274b79166858ad52698a649c41e081b5342e3558a3fd0d50fa93487a3e916c2","source":{"kind":"arxiv","id":"2408.07887","version":3},"attestation_state":"computed","paper":{"title":"Topological Charge Quadrupole Protected by Spin-Orbit U(1) Quasi-Symmetry in Antiferromagnet NdBiPt","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Ao Zhang, Jiayu Li, Pengfei Liu, Qihang Liu, Xiaobing Chen, Yuntian Liu","submitted_at":"2024-08-15T02:10:11Z","abstract_excerpt":"The interplay of symmetry and topology in crystal solids has given rise to various elementary excitations as quasiparticles. Among these, those with significant Berry-phase-related transport responses are of particular interest. Here, we predict a new type of quasiparticle called topological charge quadruple (TCQ), which is analogous to a charge quadrupole but consists of two closely-packed pairs of Weyl points in momentum space, specifically in a half-Heusler antiferromagnet NdBiPt. Interestingly, the TCQ is protected by the spin-orbit $U(1)$ quasi-symmetry, rather than any exact crystallogra"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2408.07887","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-08-15T02:10:11Z","cross_cats_sorted":[],"title_canon_sha256":"6866bafc0bc83a1cd3c6e3ab9f0a7f326f52a8255ed7fdc0d2002eb2f9b1fa03","abstract_canon_sha256":"ac7f045244b83a5123c5010b2d397fe183e8a511ee2739b15cce88adcf51da4a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:09:07.572505Z","signature_b64":"pIhFRNOvUVmvTdjbPwvkt6dCTVw3IQfFuIVIcAVj5T0eJSnFMYWjzqPdga498KYBHSKtJLRKZr1ZQO4O75BiCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9274b79166858ad52698a649c41e081b5342e3558a3fd0d50fa93487a3e916c2","last_reissued_at":"2026-07-05T10:09:07.572010Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:09:07.572010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Topological Charge Quadrupole Protected by Spin-Orbit U(1) Quasi-Symmetry in Antiferromagnet NdBiPt","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Ao Zhang, Jiayu Li, Pengfei Liu, Qihang Liu, Xiaobing Chen, Yuntian Liu","submitted_at":"2024-08-15T02:10:11Z","abstract_excerpt":"The interplay of symmetry and topology in crystal solids has given rise to various elementary excitations as quasiparticles. Among these, those with significant Berry-phase-related transport responses are of particular interest. Here, we predict a new type of quasiparticle called topological charge quadruple (TCQ), which is analogous to a charge quadrupole but consists of two closely-packed pairs of Weyl points in momentum space, specifically in a half-Heusler antiferromagnet NdBiPt. Interestingly, the TCQ is protected by the spin-orbit $U(1)$ quasi-symmetry, rather than any exact crystallogra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.07887","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.07887/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2408.07887","created_at":"2026-07-05T10:09:07.572067+00:00"},{"alias_kind":"arxiv_version","alias_value":"2408.07887v3","created_at":"2026-07-05T10:09:07.572067+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.07887","created_at":"2026-07-05T10:09:07.572067+00:00"},{"alias_kind":"pith_short_12","alias_value":"SJ2LPELGQWFN","created_at":"2026-07-05T10:09:07.572067+00:00"},{"alias_kind":"pith_short_16","alias_value":"SJ2LPELGQWFNKJUY","created_at":"2026-07-05T10:09:07.572067+00:00"},{"alias_kind":"pith_short_8","alias_value":"SJ2LPELG","created_at":"2026-07-05T10:09:07.572067+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN","json":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN.json","graph_json":"https://pith.science/api/pith-number/SJ2LPELGQWFNKJUYUZE4IHQIDN/graph.json","events_json":"https://pith.science/api/pith-number/SJ2LPELGQWFNKJUYUZE4IHQIDN/events.json","paper":"https://pith.science/paper/SJ2LPELG"},"agent_actions":{"view_html":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN","download_json":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN.json","view_paper":"https://pith.science/paper/SJ2LPELG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2408.07887&json=true","fetch_graph":"https://pith.science/api/pith-number/SJ2LPELGQWFNKJUYUZE4IHQIDN/graph.json","fetch_events":"https://pith.science/api/pith-number/SJ2LPELGQWFNKJUYUZE4IHQIDN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN/action/storage_attestation","attest_author":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN/action/author_attestation","sign_citation":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN/action/citation_signature","submit_replication":"https://pith.science/pith/SJ2LPELGQWFNKJUYUZE4IHQIDN/action/replication_record"}},"created_at":"2026-07-05T10:09:07.572067+00:00","updated_at":"2026-07-05T10:09:07.572067+00:00"}