{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:7EEIABPSKVY7Y5L2HFCTY33NHP","short_pith_number":"pith:7EEIABPS","schema_version":"1.0","canonical_sha256":"f9088005f25571fc757a39453c6f6d3bfa4e07648400d708a877707ab6f733f5","source":{"kind":"arxiv","id":"0811.3236","version":2},"attestation_state":"computed","paper":{"title":"Electron-nuclear interaction in 13C nanotube double quantum dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. J. Bestwick, C. H. Stwertka, C. M. Marcus, D. Marcos, F. Kuemmeth, H. O. H. Churchill, J. W. Harlow, S. K. Watson","submitted_at":"2008-11-19T22:47:07Z","abstract_excerpt":"For coherent electron spins, hyperfine coupling to nuclei in the host material can either be a dominant source of unwanted spin decoherence or, if controlled effectively, a resource allowing storage and retrieval of quantum information. To investigate the effect of a controllable nuclear environment on the evolution of confined electron spins, we have fabricated and measured gate-defined double quantum dots with integrated charge sensors made from single-walled carbon nanotubes with a variable concentration of 13C (nuclear spin I=1/2) among the majority zero-nuclear-spin 12C atoms. Spin-sensit"},"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":"0811.3236","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-11-19T22:47:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"bbe541458d0b3b333663ef119d15910b5586545e6c95174cbec4d1a84979cc99","abstract_canon_sha256":"10646bec7f10b11aad1727e3b648718d07d2c2c8ad13c47cb73d157a47bb53bd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:54.610777Z","signature_b64":"Y4ao3wLGWNQPI0KNhVZJGLAoIpfAUPhPRM9IxKGMpJqF9J3h73OtczykVa8QNWNu1TnjVzw+M8MDwRMj5PmWBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9088005f25571fc757a39453c6f6d3bfa4e07648400d708a877707ab6f733f5","last_reissued_at":"2026-05-18T03:24:54.610119Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:54.610119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Electron-nuclear interaction in 13C nanotube double quantum dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. J. Bestwick, C. H. Stwertka, C. M. Marcus, D. Marcos, F. Kuemmeth, H. O. H. Churchill, J. W. Harlow, S. K. Watson","submitted_at":"2008-11-19T22:47:07Z","abstract_excerpt":"For coherent electron spins, hyperfine coupling to nuclei in the host material can either be a dominant source of unwanted spin decoherence or, if controlled effectively, a resource allowing storage and retrieval of quantum information. To investigate the effect of a controllable nuclear environment on the evolution of confined electron spins, we have fabricated and measured gate-defined double quantum dots with integrated charge sensors made from single-walled carbon nanotubes with a variable concentration of 13C (nuclear spin I=1/2) among the majority zero-nuclear-spin 12C atoms. Spin-sensit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3236","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":"0811.3236","created_at":"2026-05-18T03:24:54.610210+00:00"},{"alias_kind":"arxiv_version","alias_value":"0811.3236v2","created_at":"2026-05-18T03:24:54.610210+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.3236","created_at":"2026-05-18T03:24:54.610210+00:00"},{"alias_kind":"pith_short_12","alias_value":"7EEIABPSKVY7","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_16","alias_value":"7EEIABPSKVY7Y5L2","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_8","alias_value":"7EEIABPS","created_at":"2026-05-18T12:25:56.245647+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/7EEIABPSKVY7Y5L2HFCTY33NHP","json":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP.json","graph_json":"https://pith.science/api/pith-number/7EEIABPSKVY7Y5L2HFCTY33NHP/graph.json","events_json":"https://pith.science/api/pith-number/7EEIABPSKVY7Y5L2HFCTY33NHP/events.json","paper":"https://pith.science/paper/7EEIABPS"},"agent_actions":{"view_html":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP","download_json":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP.json","view_paper":"https://pith.science/paper/7EEIABPS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0811.3236&json=true","fetch_graph":"https://pith.science/api/pith-number/7EEIABPSKVY7Y5L2HFCTY33NHP/graph.json","fetch_events":"https://pith.science/api/pith-number/7EEIABPSKVY7Y5L2HFCTY33NHP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP/action/storage_attestation","attest_author":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP/action/author_attestation","sign_citation":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP/action/citation_signature","submit_replication":"https://pith.science/pith/7EEIABPSKVY7Y5L2HFCTY33NHP/action/replication_record"}},"created_at":"2026-05-18T03:24:54.610210+00:00","updated_at":"2026-05-18T03:24:54.610210+00:00"}