{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:YKGEYOXCBT25S5TJGAHLRYDBQH","short_pith_number":"pith:YKGEYOXC","schema_version":"1.0","canonical_sha256":"c28c4c3ae20cf5d97669300eb8e06181c4fd40ec9cadab199ed184cc98a2f46e","source":{"kind":"arxiv","id":"1311.3540","version":2},"attestation_state":"computed","paper":{"title":"Supercurrent Spectroscopy of Andreev States","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"CEA-Saclay, C. O. Girit, C. Urbina, D. Esteve, France), H. Pothier (Quantronics Group, L. Bretheau, SPEC","submitted_at":"2013-11-14T15:33:37Z","abstract_excerpt":"We measure the excitation spectrum of a superconducting atomic contact. In addition to the usual continuum above the superconducting gap, the single particle excitation spectrum contains discrete, spin-degenerate Andreev levels inside the gap. Quasiparticle excitations are induced by a broadband on-chip microwave source and detected by measuring changes in the supercurrent flowing through the atomic contact. Since microwave photons excite quasiparticles in pairs, two types of transitions are observed: Andreev transitions, which consists of putting two quasiparticles in an Andreev level, and tr"},"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":"1311.3540","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-14T15:33:37Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"d34e23b98f64e1ab8dea879eed6615f8f271e045fcf0f99b6f39b550b1a02715","abstract_canon_sha256":"8d91998736de55d58dfd3cf335eafeabf51fdbab99dd034d6708afcd40ea4dd3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:03:20.380181Z","signature_b64":"a8bH4IZyLEmzFN1ozS0NIO3axAT4nt5u/G6E4/SQ4Zbg03xg3ib+FIO3lFbFxtQdsN1Iice/8e5D8bz0TBIjBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c28c4c3ae20cf5d97669300eb8e06181c4fd40ec9cadab199ed184cc98a2f46e","last_reissued_at":"2026-05-18T03:03:20.379541Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:03:20.379541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Supercurrent Spectroscopy of Andreev States","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"CEA-Saclay, C. O. Girit, C. Urbina, D. Esteve, France), H. Pothier (Quantronics Group, L. Bretheau, SPEC","submitted_at":"2013-11-14T15:33:37Z","abstract_excerpt":"We measure the excitation spectrum of a superconducting atomic contact. In addition to the usual continuum above the superconducting gap, the single particle excitation spectrum contains discrete, spin-degenerate Andreev levels inside the gap. Quasiparticle excitations are induced by a broadband on-chip microwave source and detected by measuring changes in the supercurrent flowing through the atomic contact. Since microwave photons excite quasiparticles in pairs, two types of transitions are observed: Andreev transitions, which consists of putting two quasiparticles in an Andreev level, and tr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.3540","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":"1311.3540","created_at":"2026-05-18T03:03:20.379644+00:00"},{"alias_kind":"arxiv_version","alias_value":"1311.3540v2","created_at":"2026-05-18T03:03:20.379644+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.3540","created_at":"2026-05-18T03:03:20.379644+00:00"},{"alias_kind":"pith_short_12","alias_value":"YKGEYOXCBT25","created_at":"2026-05-18T12:28:06.772260+00:00"},{"alias_kind":"pith_short_16","alias_value":"YKGEYOXCBT25S5TJ","created_at":"2026-05-18T12:28:06.772260+00:00"},{"alias_kind":"pith_short_8","alias_value":"YKGEYOXC","created_at":"2026-05-18T12:28:06.772260+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/YKGEYOXCBT25S5TJGAHLRYDBQH","json":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH.json","graph_json":"https://pith.science/api/pith-number/YKGEYOXCBT25S5TJGAHLRYDBQH/graph.json","events_json":"https://pith.science/api/pith-number/YKGEYOXCBT25S5TJGAHLRYDBQH/events.json","paper":"https://pith.science/paper/YKGEYOXC"},"agent_actions":{"view_html":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH","download_json":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH.json","view_paper":"https://pith.science/paper/YKGEYOXC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1311.3540&json=true","fetch_graph":"https://pith.science/api/pith-number/YKGEYOXCBT25S5TJGAHLRYDBQH/graph.json","fetch_events":"https://pith.science/api/pith-number/YKGEYOXCBT25S5TJGAHLRYDBQH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH/action/storage_attestation","attest_author":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH/action/author_attestation","sign_citation":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH/action/citation_signature","submit_replication":"https://pith.science/pith/YKGEYOXCBT25S5TJGAHLRYDBQH/action/replication_record"}},"created_at":"2026-05-18T03:03:20.379644+00:00","updated_at":"2026-05-18T03:03:20.379644+00:00"}