{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:FWAXP2UHLRQS7E4LTOCT6DAPHV","short_pith_number":"pith:FWAXP2UH","schema_version":"1.0","canonical_sha256":"2d8177ea875c612f938b9b853f0c0f3d62a8223631b5aa06d05e482097468b3d","source":{"kind":"arxiv","id":"cond-mat/0612178","version":2},"attestation_state":"computed","paper":{"title":"High fidelity measurement of singlet-triplet states in a quantum dot","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"F. H. L. Koppens, H. P. Tranitz, I. T. Vink, K-J. Tielrooij, L. M. K. Vandersypen, L. P. Kouwenhoven, T. Meunier, W. Wegscheider","submitted_at":"2006-12-07T09:41:34Z","abstract_excerpt":"We demonstrate experimentally a read-out method that distinguishes between two-electron spin states in a quantum dot. This scheme combines the advantages of the two existing mechanisms for spin-to-charge conversion with single-shot charge detection: a large difference in energy between the two states and a large difference in tunnel rate between the states and a reservoir. As a result, a spin measurement fidelity of 97% was achieved, which is much higher than previously reported fidelities."},"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/0612178","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2006-12-07T09:41:34Z","cross_cats_sorted":[],"title_canon_sha256":"62c684557c41352b18f30bb15ba6d720aec94de6ae5054b6a457a9d1ad190c07","abstract_canon_sha256":"3a19e163acd6cb2261d2e4be73455713dce3c184f53bd3eaf998890cc5518e55"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:39.028067Z","signature_b64":"t2mvrkpH5FqDjZjjpy/3cYEXq2xBPkmVpCCQEx2LCW1NndzR6WWTOLI89PMVwO5Gb05Dha8TiSsWKcE0A53qDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d8177ea875c612f938b9b853f0c0f3d62a8223631b5aa06d05e482097468b3d","last_reissued_at":"2026-05-18T01:39:39.027428Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:39.027428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High fidelity measurement of singlet-triplet states in a quantum dot","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"F. H. L. Koppens, H. P. Tranitz, I. T. Vink, K-J. Tielrooij, L. M. K. Vandersypen, L. P. Kouwenhoven, T. Meunier, W. Wegscheider","submitted_at":"2006-12-07T09:41:34Z","abstract_excerpt":"We demonstrate experimentally a read-out method that distinguishes between two-electron spin states in a quantum dot. This scheme combines the advantages of the two existing mechanisms for spin-to-charge conversion with single-shot charge detection: a large difference in energy between the two states and a large difference in tunnel rate between the states and a reservoir. As a result, a spin measurement fidelity of 97% was achieved, which is much higher than previously reported fidelities."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612178","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":"cond-mat/0612178","created_at":"2026-05-18T01:39:39.027537+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612178v2","created_at":"2026-05-18T01:39:39.027537+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612178","created_at":"2026-05-18T01:39:39.027537+00:00"},{"alias_kind":"pith_short_12","alias_value":"FWAXP2UHLRQS","created_at":"2026-05-18T12:25:53.939244+00:00"},{"alias_kind":"pith_short_16","alias_value":"FWAXP2UHLRQS7E4L","created_at":"2026-05-18T12:25:53.939244+00:00"},{"alias_kind":"pith_short_8","alias_value":"FWAXP2UH","created_at":"2026-05-18T12:25:53.939244+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/FWAXP2UHLRQS7E4LTOCT6DAPHV","json":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV.json","graph_json":"https://pith.science/api/pith-number/FWAXP2UHLRQS7E4LTOCT6DAPHV/graph.json","events_json":"https://pith.science/api/pith-number/FWAXP2UHLRQS7E4LTOCT6DAPHV/events.json","paper":"https://pith.science/paper/FWAXP2UH"},"agent_actions":{"view_html":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV","download_json":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV.json","view_paper":"https://pith.science/paper/FWAXP2UH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0612178&json=true","fetch_graph":"https://pith.science/api/pith-number/FWAXP2UHLRQS7E4LTOCT6DAPHV/graph.json","fetch_events":"https://pith.science/api/pith-number/FWAXP2UHLRQS7E4LTOCT6DAPHV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV/action/storage_attestation","attest_author":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV/action/author_attestation","sign_citation":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV/action/citation_signature","submit_replication":"https://pith.science/pith/FWAXP2UHLRQS7E4LTOCT6DAPHV/action/replication_record"}},"created_at":"2026-05-18T01:39:39.027537+00:00","updated_at":"2026-05-18T01:39:39.027537+00:00"}