{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:U5TUF6EJLRMCQ73PB63NCMMQRO","short_pith_number":"pith:U5TUF6EJ","schema_version":"1.0","canonical_sha256":"a76742f8895c58287f6f0fb6d131908b8dbba17062993d8bab6ae97c6844c785","source":{"kind":"arxiv","id":"cond-mat/0404001","version":5},"attestation_state":"computed","paper":{"title":"Quantum replica approach to the under-screened Kondo model","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"I. Paul, P. Coleman","submitted_at":"2004-04-01T18:15:22Z","abstract_excerpt":"We extend the Schwinger boson large N treatment of the underscreened Kondo model in a way that correctly captures the finite elastic phase shift in the singular Fermi liquid. The new feature of the approach, is the introduction of a flavor quantum number with K possible values, associated with the Schwinger boson representation. The large N limit is taken maintaining the ratio k=K/N fixed. This approach differs from previous approaches, in that we do not explicitly enforce a constraint on the spin representation of the Schwinger bosons. Instead, the energetics of the Kondo model cause the boso"},"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":"cond-mat/0404001","kind":"arxiv","version":5},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-04-01T18:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"db0554a4011dcc6dc8eee0b4833816b728ec2204972c9d145bfe89a9d7209344","abstract_canon_sha256":"a7b2100ff230f43bb54b00a1918462e02bdc5875379201777fe56b14938a6cbd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:46:01.339254Z","signature_b64":"R0Ul/EUQl+e0YjlY4eUW1F3kg+1NUjdSl6XRaQIQopnLR1uBBo2ULHB0u9EiXykF3DCbIPPKHL6F7MXv9DQlDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a76742f8895c58287f6f0fb6d131908b8dbba17062993d8bab6ae97c6844c785","last_reissued_at":"2026-07-04T16:46:01.338801Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:46:01.338801Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum replica approach to the under-screened Kondo model","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"I. Paul, P. Coleman","submitted_at":"2004-04-01T18:15:22Z","abstract_excerpt":"We extend the Schwinger boson large N treatment of the underscreened Kondo model in a way that correctly captures the finite elastic phase shift in the singular Fermi liquid. The new feature of the approach, is the introduction of a flavor quantum number with K possible values, associated with the Schwinger boson representation. The large N limit is taken maintaining the ratio k=K/N fixed. This approach differs from previous approaches, in that we do not explicitly enforce a constraint on the spin representation of the Schwinger bosons. Instead, the energetics of the Kondo model cause the boso"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0404001","kind":"arxiv","version":5},"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/cond-mat/0404001/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":"cond-mat/0404001","created_at":"2026-07-04T16:46:01.338871+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0404001v5","created_at":"2026-07-04T16:46:01.338871+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0404001","created_at":"2026-07-04T16:46:01.338871+00:00"},{"alias_kind":"pith_short_12","alias_value":"U5TUF6EJLRMC","created_at":"2026-07-04T16:46:01.338871+00:00"},{"alias_kind":"pith_short_16","alias_value":"U5TUF6EJLRMCQ73P","created_at":"2026-07-04T16:46:01.338871+00:00"},{"alias_kind":"pith_short_8","alias_value":"U5TUF6EJ","created_at":"2026-07-04T16:46:01.338871+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/U5TUF6EJLRMCQ73PB63NCMMQRO","json":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO.json","graph_json":"https://pith.science/api/pith-number/U5TUF6EJLRMCQ73PB63NCMMQRO/graph.json","events_json":"https://pith.science/api/pith-number/U5TUF6EJLRMCQ73PB63NCMMQRO/events.json","paper":"https://pith.science/paper/U5TUF6EJ"},"agent_actions":{"view_html":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO","download_json":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO.json","view_paper":"https://pith.science/paper/U5TUF6EJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0404001&json=true","fetch_graph":"https://pith.science/api/pith-number/U5TUF6EJLRMCQ73PB63NCMMQRO/graph.json","fetch_events":"https://pith.science/api/pith-number/U5TUF6EJLRMCQ73PB63NCMMQRO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO/action/storage_attestation","attest_author":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO/action/author_attestation","sign_citation":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO/action/citation_signature","submit_replication":"https://pith.science/pith/U5TUF6EJLRMCQ73PB63NCMMQRO/action/replication_record"}},"created_at":"2026-07-04T16:46:01.338871+00:00","updated_at":"2026-07-04T16:46:01.338871+00:00"}