{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:3RTQTA6XHOJRLYSMUHUDSEAS66","short_pith_number":"pith:3RTQTA6X","schema_version":"1.0","canonical_sha256":"dc670983d73b9315e24ca1e8391012f796af14bfe646e1c00d239a4a1742d557","source":{"kind":"arxiv","id":"0909.1213","version":2},"attestation_state":"computed","paper":{"title":"Josephson effect for SU(4) carbon nanotube quantum dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Levy Yeyati, A. Zazunov, R. Egger","submitted_at":"2009-09-07T10:49:57Z","abstract_excerpt":"We present the theory of the Josephson effect in nanotube dots where an SU(4) symmetry can be realized. We find a remarkably rich phase diagram that significantly differs from the SU(2) case. In particular, \\pi-junction behavior is largely suppressed. We analytically obtain the Josephson current in various parameter regions: (i) in the Kondo regime, covering the full crossover from SU(4) to SU(2), (ii) for weak tunnel couplings, and (iii) for large BCS gap. The transition between these regions is studied numerically."},"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":"0909.1213","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2009-09-07T10:49:57Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"3d7bb5911719933b4aec06d0b323e5a3f661b523963fa75c4186705e6d4df2ac","abstract_canon_sha256":"333552e1dd2e879aa9999eb984805aa212c37936f44149e758ec44334b9a3a6a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:59.095144Z","signature_b64":"3Hyiv+Xt0BYzEglWJ3GVa9xmmNZfHPm59x2gQfWKif4kvvukGbpRTXWBhgThN9TACMR8eQ4wFEC36MxXyoiIBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc670983d73b9315e24ca1e8391012f796af14bfe646e1c00d239a4a1742d557","last_reissued_at":"2026-05-18T02:11:59.094342Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:59.094342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Josephson effect for SU(4) carbon nanotube quantum dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Levy Yeyati, A. Zazunov, R. Egger","submitted_at":"2009-09-07T10:49:57Z","abstract_excerpt":"We present the theory of the Josephson effect in nanotube dots where an SU(4) symmetry can be realized. We find a remarkably rich phase diagram that significantly differs from the SU(2) case. In particular, \\pi-junction behavior is largely suppressed. We analytically obtain the Josephson current in various parameter regions: (i) in the Kondo regime, covering the full crossover from SU(4) to SU(2), (ii) for weak tunnel couplings, and (iii) for large BCS gap. The transition between these regions is studied numerically."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.1213","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":"0909.1213","created_at":"2026-05-18T02:11:59.094463+00:00"},{"alias_kind":"arxiv_version","alias_value":"0909.1213v2","created_at":"2026-05-18T02:11:59.094463+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.1213","created_at":"2026-05-18T02:11:59.094463+00:00"},{"alias_kind":"pith_short_12","alias_value":"3RTQTA6XHOJR","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_16","alias_value":"3RTQTA6XHOJRLYSM","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_8","alias_value":"3RTQTA6X","created_at":"2026-05-18T12:25:58.018023+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/3RTQTA6XHOJRLYSMUHUDSEAS66","json":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66.json","graph_json":"https://pith.science/api/pith-number/3RTQTA6XHOJRLYSMUHUDSEAS66/graph.json","events_json":"https://pith.science/api/pith-number/3RTQTA6XHOJRLYSMUHUDSEAS66/events.json","paper":"https://pith.science/paper/3RTQTA6X"},"agent_actions":{"view_html":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66","download_json":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66.json","view_paper":"https://pith.science/paper/3RTQTA6X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0909.1213&json=true","fetch_graph":"https://pith.science/api/pith-number/3RTQTA6XHOJRLYSMUHUDSEAS66/graph.json","fetch_events":"https://pith.science/api/pith-number/3RTQTA6XHOJRLYSMUHUDSEAS66/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66/action/storage_attestation","attest_author":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66/action/author_attestation","sign_citation":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66/action/citation_signature","submit_replication":"https://pith.science/pith/3RTQTA6XHOJRLYSMUHUDSEAS66/action/replication_record"}},"created_at":"2026-05-18T02:11:59.094463+00:00","updated_at":"2026-05-18T02:11:59.094463+00:00"}