{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:GWRGZP2ZKQLUEEFHHHB3CDIB2C","short_pith_number":"pith:GWRGZP2Z","schema_version":"1.0","canonical_sha256":"35a26cbf5954174210a739c3b10d01d0823c1a1e1d33f4eefb444258a0720653","source":{"kind":"arxiv","id":"cond-mat/0205498","version":2},"attestation_state":"computed","paper":{"title":"Ground State and Spectral Properties of a Quantum Impurity in d-Wave Superconductors","license":"","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Xi Dai, Ziqiang Wang","submitted_at":"2002-05-24T02:46:48Z","abstract_excerpt":"The variational approach of Gunnarsson and Sch\\\"onhammer to the Anderson impurity model is generalized to study d-wave superconductors in the presence of dilute spin-1/2 impurities. We show that the local moment is screened when the hybridization exceeds a nonzero critical value at which the ground state changes from a spin doublet to a spin singlet. The electron spectral functions are calculated in both phases. We find that while a Kondo resonance develops above the Fermi level in the singlet phase, the spectral function exhibits a low-energy spectral peak below the Fermi level in the spin do"},"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/0205498","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2002-05-24T02:46:48Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"48a58c18b2cb1321122bc7559a6df07c728d95a582b1021adc61b9b1d4114114","abstract_canon_sha256":"efa76c382c05054c84cf42e1cd16e145c805b4459add1d60efe79611fa43f1f0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:32:16.962299Z","signature_b64":"PJr7Mg3Fm1uSPnM1WMqD3vQ1i7Xn5G/9MRHduxdaF+MARDb1L/Jx3gPbjbs05WvXiLkHABE+tGP9Xd6u0J78CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"35a26cbf5954174210a739c3b10d01d0823c1a1e1d33f4eefb444258a0720653","last_reissued_at":"2026-07-04T16:32:16.961897Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:32:16.961897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ground State and Spectral Properties of a Quantum Impurity in d-Wave Superconductors","license":"","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Xi Dai, Ziqiang Wang","submitted_at":"2002-05-24T02:46:48Z","abstract_excerpt":"The variational approach of Gunnarsson and Sch\\\"onhammer to the Anderson impurity model is generalized to study d-wave superconductors in the presence of dilute spin-1/2 impurities. We show that the local moment is screened when the hybridization exceeds a nonzero critical value at which the ground state changes from a spin doublet to a spin singlet. The electron spectral functions are calculated in both phases. We find that while a Kondo resonance develops above the Fermi level in the singlet phase, the spectral function exhibits a low-energy spectral peak below the Fermi level in the spin do"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0205498","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/cond-mat/0205498/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/0205498","created_at":"2026-07-04T16:32:16.961957+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0205498v2","created_at":"2026-07-04T16:32:16.961957+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0205498","created_at":"2026-07-04T16:32:16.961957+00:00"},{"alias_kind":"pith_short_12","alias_value":"GWRGZP2ZKQLU","created_at":"2026-07-04T16:32:16.961957+00:00"},{"alias_kind":"pith_short_16","alias_value":"GWRGZP2ZKQLUEEFH","created_at":"2026-07-04T16:32:16.961957+00:00"},{"alias_kind":"pith_short_8","alias_value":"GWRGZP2Z","created_at":"2026-07-04T16:32:16.961957+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/GWRGZP2ZKQLUEEFHHHB3CDIB2C","json":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C.json","graph_json":"https://pith.science/api/pith-number/GWRGZP2ZKQLUEEFHHHB3CDIB2C/graph.json","events_json":"https://pith.science/api/pith-number/GWRGZP2ZKQLUEEFHHHB3CDIB2C/events.json","paper":"https://pith.science/paper/GWRGZP2Z"},"agent_actions":{"view_html":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C","download_json":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C.json","view_paper":"https://pith.science/paper/GWRGZP2Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0205498&json=true","fetch_graph":"https://pith.science/api/pith-number/GWRGZP2ZKQLUEEFHHHB3CDIB2C/graph.json","fetch_events":"https://pith.science/api/pith-number/GWRGZP2ZKQLUEEFHHHB3CDIB2C/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C/action/storage_attestation","attest_author":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C/action/author_attestation","sign_citation":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C/action/citation_signature","submit_replication":"https://pith.science/pith/GWRGZP2ZKQLUEEFHHHB3CDIB2C/action/replication_record"}},"created_at":"2026-07-04T16:32:16.961957+00:00","updated_at":"2026-07-04T16:32:16.961957+00:00"}