{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:TDAYAEWR3BAKOVKH6NVQJKWAPI","short_pith_number":"pith:TDAYAEWR","schema_version":"1.0","canonical_sha256":"98c18012d1d840a75547f36b04aac07a0d329e5301bdd40646ca1af5bade61e3","source":{"kind":"arxiv","id":"1003.3054","version":1},"attestation_state":"computed","paper":{"title":"High coherence hybrid superconducting qubit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"David P. DiVincenzo, George A. Keefe, J.R. Rozen, Mark B. Ketchen, Mary Beth Rothwell, Matthias Steffen, Shwetank Kumar","submitted_at":"2010-03-16T01:14:36Z","abstract_excerpt":"We measure the coherence of a new superconducting qubit, the {\\em low-impedance flux qubit}, finding $T_2^* \\sim T_1 \\sim 1.5\\mu$s. It is a three-junction flux qubit, but the ratio of junction critical currents is chosen to make the qubit's potential have a single well form.  The low impedance of its large shunting capacitance protects it from decoherence.  This qubit has a moderate anharmonicity, whose sign is reversed compared with all other popular qubit designs.  The qubit is capacitively coupled to a high-Q resonator in a $\\lambda/2$ configuration, which permits the qubit's state to be re"},"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":"1003.3054","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-03-16T01:14:36Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"9ebecd598e73a6e30d53366ea649c964be9f76cb2e0d6f0571b7b00c28018ae8","abstract_canon_sha256":"738be39e8c14ae939867778891dd09d4e2430166243cd6adef82c9b15df64b0c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:33.499532Z","signature_b64":"Od7qwfjf+6zGofzqJTUbH2Ej05X+d2E3EP97fViaqTsM3yihmSZpYxslqKw7mxtnV3XnoJFfiKqscA3iIqpkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98c18012d1d840a75547f36b04aac07a0d329e5301bdd40646ca1af5bade61e3","last_reissued_at":"2026-05-18T02:08:33.498742Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:33.498742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High coherence hybrid superconducting qubit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"David P. DiVincenzo, George A. Keefe, J.R. Rozen, Mark B. Ketchen, Mary Beth Rothwell, Matthias Steffen, Shwetank Kumar","submitted_at":"2010-03-16T01:14:36Z","abstract_excerpt":"We measure the coherence of a new superconducting qubit, the {\\em low-impedance flux qubit}, finding $T_2^* \\sim T_1 \\sim 1.5\\mu$s. It is a three-junction flux qubit, but the ratio of junction critical currents is chosen to make the qubit's potential have a single well form.  The low impedance of its large shunting capacitance protects it from decoherence.  This qubit has a moderate anharmonicity, whose sign is reversed compared with all other popular qubit designs.  The qubit is capacitively coupled to a high-Q resonator in a $\\lambda/2$ configuration, which permits the qubit's state to be re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.3054","kind":"arxiv","version":1},"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":"1003.3054","created_at":"2026-05-18T02:08:33.498872+00:00"},{"alias_kind":"arxiv_version","alias_value":"1003.3054v1","created_at":"2026-05-18T02:08:33.498872+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.3054","created_at":"2026-05-18T02:08:33.498872+00:00"},{"alias_kind":"pith_short_12","alias_value":"TDAYAEWR3BAK","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_16","alias_value":"TDAYAEWR3BAKOVKH","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_8","alias_value":"TDAYAEWR","created_at":"2026-05-18T12:26:13.927090+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/TDAYAEWR3BAKOVKH6NVQJKWAPI","json":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI.json","graph_json":"https://pith.science/api/pith-number/TDAYAEWR3BAKOVKH6NVQJKWAPI/graph.json","events_json":"https://pith.science/api/pith-number/TDAYAEWR3BAKOVKH6NVQJKWAPI/events.json","paper":"https://pith.science/paper/TDAYAEWR"},"agent_actions":{"view_html":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI","download_json":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI.json","view_paper":"https://pith.science/paper/TDAYAEWR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1003.3054&json=true","fetch_graph":"https://pith.science/api/pith-number/TDAYAEWR3BAKOVKH6NVQJKWAPI/graph.json","fetch_events":"https://pith.science/api/pith-number/TDAYAEWR3BAKOVKH6NVQJKWAPI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI/action/storage_attestation","attest_author":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI/action/author_attestation","sign_citation":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI/action/citation_signature","submit_replication":"https://pith.science/pith/TDAYAEWR3BAKOVKH6NVQJKWAPI/action/replication_record"}},"created_at":"2026-05-18T02:08:33.498872+00:00","updated_at":"2026-05-18T02:08:33.498872+00:00"}