{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:GPO2HNVHWILBR5DAVOOCSX7PIP","short_pith_number":"pith:GPO2HNVH","schema_version":"1.0","canonical_sha256":"33dda3b6a7b21618f460ab9c295fef43f4ac083a673bbfaec4a98f48fc407e56","source":{"kind":"arxiv","id":"1901.05398","version":2},"attestation_state":"computed","paper":{"title":"Ballistic spin transport in a periodically driven integrable quantum system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Lenart Zadnik, Marko Ljubotina, Toma\\v{z} Prosen","submitted_at":"2019-01-16T17:31:48Z","abstract_excerpt":"We demonstrate ballistic spin transport of an integrable unitary quantum circuit, which can be understood either as a paradigm of an integrable periodically driven (Floquet) spin chain, or as a Trotterized anisotropic ($XXZ$) Heisenberg spin-1/2 model. We construct an analytic family of quasi-local conservation laws that break the spin-reversal symmetry and compute a lower bound on the spin Drude weight which is found to be a fractal function of the anisotropy parameter. Extensive numerical simulations of spin transport suggest that this fractal lower bound is in fact tight."},"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":"1901.05398","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2019-01-16T17:31:48Z","cross_cats_sorted":[],"title_canon_sha256":"e42183b91d07dc6b1655b676964f54a0400311ae60b85251a07bf4b4557a66b3","abstract_canon_sha256":"d6c015793d6ff2f6e1a3401cfae82ae436e938842636556209300f1a82f59361"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:58.452085Z","signature_b64":"nLHBL90H6/T/JDPg3hJ7Sn+O21RQ34haKJjinfadvBR/E1ZdJrq2sUftnkXkytko7JWkW1bVehiKG5051CQFCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33dda3b6a7b21618f460ab9c295fef43f4ac083a673bbfaec4a98f48fc407e56","last_reissued_at":"2026-05-17T23:47:58.451460Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:58.451460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ballistic spin transport in a periodically driven integrable quantum system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Lenart Zadnik, Marko Ljubotina, Toma\\v{z} Prosen","submitted_at":"2019-01-16T17:31:48Z","abstract_excerpt":"We demonstrate ballistic spin transport of an integrable unitary quantum circuit, which can be understood either as a paradigm of an integrable periodically driven (Floquet) spin chain, or as a Trotterized anisotropic ($XXZ$) Heisenberg spin-1/2 model. We construct an analytic family of quasi-local conservation laws that break the spin-reversal symmetry and compute a lower bound on the spin Drude weight which is found to be a fractal function of the anisotropy parameter. Extensive numerical simulations of spin transport suggest that this fractal lower bound is in fact tight."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.05398","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1901.05398","created_at":"2026-05-17T23:47:58.451557+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.05398v2","created_at":"2026-05-17T23:47:58.451557+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.05398","created_at":"2026-05-17T23:47:58.451557+00:00"},{"alias_kind":"pith_short_12","alias_value":"GPO2HNVHWILB","created_at":"2026-05-18T12:33:18.533446+00:00"},{"alias_kind":"pith_short_16","alias_value":"GPO2HNVHWILBR5DA","created_at":"2026-05-18T12:33:18.533446+00:00"},{"alias_kind":"pith_short_8","alias_value":"GPO2HNVH","created_at":"2026-05-18T12:33:18.533446+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/GPO2HNVHWILBR5DAVOOCSX7PIP","json":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP.json","graph_json":"https://pith.science/api/pith-number/GPO2HNVHWILBR5DAVOOCSX7PIP/graph.json","events_json":"https://pith.science/api/pith-number/GPO2HNVHWILBR5DAVOOCSX7PIP/events.json","paper":"https://pith.science/paper/GPO2HNVH"},"agent_actions":{"view_html":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP","download_json":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP.json","view_paper":"https://pith.science/paper/GPO2HNVH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.05398&json=true","fetch_graph":"https://pith.science/api/pith-number/GPO2HNVHWILBR5DAVOOCSX7PIP/graph.json","fetch_events":"https://pith.science/api/pith-number/GPO2HNVHWILBR5DAVOOCSX7PIP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP/action/storage_attestation","attest_author":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP/action/author_attestation","sign_citation":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP/action/citation_signature","submit_replication":"https://pith.science/pith/GPO2HNVHWILBR5DAVOOCSX7PIP/action/replication_record"}},"created_at":"2026-05-17T23:47:58.451557+00:00","updated_at":"2026-05-17T23:47:58.451557+00:00"}