{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:UMXWATK5USPDT3QHTEHLNGANXH","short_pith_number":"pith:UMXWATK5","canonical_record":{"source":{"id":"1307.8406","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-31T17:53:39Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"27aef2d8a961478a3f5b757d6308024a1909ec8904e609c17968622b92ebeb42","abstract_canon_sha256":"6191fa4b40dd0cb89f91cb8d1d743820b4f23a60cd84a2f0d938c83dd1ff975d"},"schema_version":"1.0"},"canonical_sha256":"a32f604d5da49e39ee07990eb6980db9d38fe144ae8e015a4ed423c4f9a94d0d","source":{"kind":"arxiv","id":"1307.8406","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.8406","created_at":"2026-05-18T03:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"1307.8406v2","created_at":"2026-05-18T03:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.8406","created_at":"2026-05-18T03:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"UMXWATK5USPD","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UMXWATK5USPDT3QH","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UMXWATK5","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:UMXWATK5USPDT3QHTEHLNGANXH","target":"record","payload":{"canonical_record":{"source":{"id":"1307.8406","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-31T17:53:39Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"27aef2d8a961478a3f5b757d6308024a1909ec8904e609c17968622b92ebeb42","abstract_canon_sha256":"6191fa4b40dd0cb89f91cb8d1d743820b4f23a60cd84a2f0d938c83dd1ff975d"},"schema_version":"1.0"},"canonical_sha256":"a32f604d5da49e39ee07990eb6980db9d38fe144ae8e015a4ed423c4f9a94d0d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:05:25.873559Z","signature_b64":"smiFia1bIUKIkqpHcZ7SpzcA8b2sf8fCsnO4ISoy/tBJbqgtHiTUCw1vc6SJZcBhqN7n58i0zW7lHYsVb7vdCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a32f604d5da49e39ee07990eb6980db9d38fe144ae8e015a4ed423c4f9a94d0d","last_reissued_at":"2026-05-18T03:05:25.872960Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:05:25.872960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.8406","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"txb1QwNc05lGuW46p82bZWKkG2+3YS/+H++eShX9GozLG5Ndc1nNe+rgJRfpIUBbgVunoU4DBmTdzIkmcESOBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T05:03:51.315866Z"},"content_sha256":"e153378302646129a3e7edbe3ce586bfc8b37d166cb57afec8f2364e9ef53488","schema_version":"1.0","event_id":"sha256:e153378302646129a3e7edbe3ce586bfc8b37d166cb57afec8f2364e9ef53488"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:UMXWATK5USPDT3QHTEHLNGANXH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-fidelity gates in quantum dot spin qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Mark Friesen, S. N. Coppersmith, Teck Seng Koh","submitted_at":"2013-07-31T17:53:39Z","abstract_excerpt":"Several logical qubits and quantum gates have been proposed for semiconductor quantum dots controlled by voltages applied to top gates. The different schemes can be difficult to compare meaningfully. Here we develop a theoretical framework to evaluate disparate qubit-gating schemes on an equal footing. We apply the procedure to two types of double-dot qubits: the singlet-triplet (ST) and the semiconducting quantum dot hybrid qubit. We investigate three quantum gates that flip the qubit state: a DC pulsed gate, an AC gate based on logical qubit resonance (LQR), and a gate-like process known as "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.8406","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WEYMX6IiHih9UlRqiIL5dPZbUe5yFspqmO2AxW8OzqxN0bbB7LAxSBwJ3mKstq7LpZB3jwsNM90HCT5Y5FgWDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T05:03:51.316608Z"},"content_sha256":"116fc3d7dc737f77c90870c5521b3c860cc1aaedf6bdb554532def3b65a66a7a","schema_version":"1.0","event_id":"sha256:116fc3d7dc737f77c90870c5521b3c860cc1aaedf6bdb554532def3b65a66a7a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UMXWATK5USPDT3QHTEHLNGANXH/bundle.json","state_url":"https://pith.science/pith/UMXWATK5USPDT3QHTEHLNGANXH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UMXWATK5USPDT3QHTEHLNGANXH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-20T05:03:51Z","links":{"resolver":"https://pith.science/pith/UMXWATK5USPDT3QHTEHLNGANXH","bundle":"https://pith.science/pith/UMXWATK5USPDT3QHTEHLNGANXH/bundle.json","state":"https://pith.science/pith/UMXWATK5USPDT3QHTEHLNGANXH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UMXWATK5USPDT3QHTEHLNGANXH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:UMXWATK5USPDT3QHTEHLNGANXH","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"6191fa4b40dd0cb89f91cb8d1d743820b4f23a60cd84a2f0d938c83dd1ff975d","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-31T17:53:39Z","title_canon_sha256":"27aef2d8a961478a3f5b757d6308024a1909ec8904e609c17968622b92ebeb42"},"schema_version":"1.0","source":{"id":"1307.8406","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.8406","created_at":"2026-05-18T03:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"1307.8406v2","created_at":"2026-05-18T03:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.8406","created_at":"2026-05-18T03:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"UMXWATK5USPD","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UMXWATK5USPDT3QH","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UMXWATK5","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:116fc3d7dc737f77c90870c5521b3c860cc1aaedf6bdb554532def3b65a66a7a","target":"graph","created_at":"2026-05-18T03:05:25Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Several logical qubits and quantum gates have been proposed for semiconductor quantum dots controlled by voltages applied to top gates. The different schemes can be difficult to compare meaningfully. Here we develop a theoretical framework to evaluate disparate qubit-gating schemes on an equal footing. We apply the procedure to two types of double-dot qubits: the singlet-triplet (ST) and the semiconducting quantum dot hybrid qubit. We investigate three quantum gates that flip the qubit state: a DC pulsed gate, an AC gate based on logical qubit resonance (LQR), and a gate-like process known as ","authors_text":"Mark Friesen, S. N. Coppersmith, Teck Seng Koh","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-31T17:53:39Z","title":"High-fidelity gates in quantum dot spin qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.8406","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e153378302646129a3e7edbe3ce586bfc8b37d166cb57afec8f2364e9ef53488","target":"record","created_at":"2026-05-18T03:05:25Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"6191fa4b40dd0cb89f91cb8d1d743820b4f23a60cd84a2f0d938c83dd1ff975d","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-07-31T17:53:39Z","title_canon_sha256":"27aef2d8a961478a3f5b757d6308024a1909ec8904e609c17968622b92ebeb42"},"schema_version":"1.0","source":{"id":"1307.8406","kind":"arxiv","version":2}},"canonical_sha256":"a32f604d5da49e39ee07990eb6980db9d38fe144ae8e015a4ed423c4f9a94d0d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a32f604d5da49e39ee07990eb6980db9d38fe144ae8e015a4ed423c4f9a94d0d","first_computed_at":"2026-05-18T03:05:25.872960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:05:25.872960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"smiFia1bIUKIkqpHcZ7SpzcA8b2sf8fCsnO4ISoy/tBJbqgtHiTUCw1vc6SJZcBhqN7n58i0zW7lHYsVb7vdCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:05:25.873559Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.8406","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e153378302646129a3e7edbe3ce586bfc8b37d166cb57afec8f2364e9ef53488","sha256:116fc3d7dc737f77c90870c5521b3c860cc1aaedf6bdb554532def3b65a66a7a"],"state_sha256":"86da0a318ed428e1d70196e70999bf04d6648f20a5199dc2496de4dd30db22f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x/O5WeWiT3Q80JveKBLFjj0Is4JDb4sMzumG49xrNlLTQyHJDN5OfndLKk6RxYw4TT+yWM6GtAPDVpmuAX81AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T05:03:51.319551Z","bundle_sha256":"08ce022374c57be9838038712ee66c74c5afd9d1de0bf9173675e907d838c218"}}