{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:I33MKT5D3XYEOQEKR6JJY4YU5R","short_pith_number":"pith:I33MKT5D","schema_version":"1.0","canonical_sha256":"46f6c54fa3ddf047408a8f929c7314ec7f12c8d30b3bba5674d467cd5f2b1815","source":{"kind":"arxiv","id":"2603.17835","version":2},"attestation_state":"computed","paper":{"title":"Quasi-local Edge Mode in XXX Spin Chain/Circuit with Interaction Boundary Defect","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.str-el","math-ph","math.MP","quant-ph"],"primary_cat":"cond-mat.stat-mech","authors_text":"Toma\\v{z} Prosen","submitted_at":"2026-03-18T15:27:32Z","abstract_excerpt":"We study the Heisenberg spin-1/2 model on a semi-infinite chain - or, equivalently, a trotterized unitary SU(2) symmetric six-vertex quantum circuit - with a boundary defect where the interaction between the two spins nearest the edge differs from that in the bulk. For sufficiently strong boundary interaction we explicitly construct a conserved operator quasi-localized near the boundary using a matrix-product ansatz. This quasi-local edge mode leads to non-decaying boundary correlation functions, corresponding to a nonzero boundary Drude weight. The correlation length of the edge mode diverges"},"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":"2603.17835","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2026-03-18T15:27:32Z","cross_cats_sorted":["cond-mat.str-el","math-ph","math.MP","quant-ph"],"title_canon_sha256":"cb65d4bd4429c5fff22c4f9d1ded15f4155676fc997d583e99257baf54bfe19e","abstract_canon_sha256":"b1b38a93bbd8f7a30bf6ff94eeec26f23d8615a924a2fb9c6407c9b9013fbc7c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-12T01:09:25.138625Z","signature_b64":"pLKn9xezoes5JRGdFZBWL+1KY1xQDE0nozqUjTJ9EnYfGQJTyJhW0rANJPL7pOQivqAiAdntE5pPLBu2NqA+CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46f6c54fa3ddf047408a8f929c7314ec7f12c8d30b3bba5674d467cd5f2b1815","last_reissued_at":"2026-06-12T01:09:25.138141Z","signature_status":"signed_v1","first_computed_at":"2026-06-12T01:09:25.138141Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quasi-local Edge Mode in XXX Spin Chain/Circuit with Interaction Boundary Defect","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.str-el","math-ph","math.MP","quant-ph"],"primary_cat":"cond-mat.stat-mech","authors_text":"Toma\\v{z} Prosen","submitted_at":"2026-03-18T15:27:32Z","abstract_excerpt":"We study the Heisenberg spin-1/2 model on a semi-infinite chain - or, equivalently, a trotterized unitary SU(2) symmetric six-vertex quantum circuit - with a boundary defect where the interaction between the two spins nearest the edge differs from that in the bulk. For sufficiently strong boundary interaction we explicitly construct a conserved operator quasi-localized near the boundary using a matrix-product ansatz. This quasi-local edge mode leads to non-decaying boundary correlation functions, corresponding to a nonzero boundary Drude weight. The correlation length of the edge mode diverges"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.17835","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.17835/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":"2603.17835","created_at":"2026-06-12T01:09:25.138197+00:00"},{"alias_kind":"arxiv_version","alias_value":"2603.17835v2","created_at":"2026-06-12T01:09:25.138197+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.17835","created_at":"2026-06-12T01:09:25.138197+00:00"},{"alias_kind":"pith_short_12","alias_value":"I33MKT5D3XYE","created_at":"2026-06-12T01:09:25.138197+00:00"},{"alias_kind":"pith_short_16","alias_value":"I33MKT5D3XYEOQEK","created_at":"2026-06-12T01:09:25.138197+00:00"},{"alias_kind":"pith_short_8","alias_value":"I33MKT5D","created_at":"2026-06-12T01:09:25.138197+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"2605.26205","citing_title":"Exact strong zero modes are generic in integrable spin systems with large anisotropy","ref_index":50,"is_internal_anchor":true},{"citing_arxiv_id":"2605.26205","citing_title":"Exact strong zero modes are generic in integrable spin systems with large anisotropy","ref_index":50,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R","json":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R.json","graph_json":"https://pith.science/api/pith-number/I33MKT5D3XYEOQEKR6JJY4YU5R/graph.json","events_json":"https://pith.science/api/pith-number/I33MKT5D3XYEOQEKR6JJY4YU5R/events.json","paper":"https://pith.science/paper/I33MKT5D"},"agent_actions":{"view_html":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R","download_json":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R.json","view_paper":"https://pith.science/paper/I33MKT5D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2603.17835&json=true","fetch_graph":"https://pith.science/api/pith-number/I33MKT5D3XYEOQEKR6JJY4YU5R/graph.json","fetch_events":"https://pith.science/api/pith-number/I33MKT5D3XYEOQEKR6JJY4YU5R/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R/action/timestamp_anchor","attest_storage":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R/action/storage_attestation","attest_author":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R/action/author_attestation","sign_citation":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R/action/citation_signature","submit_replication":"https://pith.science/pith/I33MKT5D3XYEOQEKR6JJY4YU5R/action/replication_record"}},"created_at":"2026-06-12T01:09:25.138197+00:00","updated_at":"2026-06-12T01:09:25.138197+00:00"}