{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:X5MGMWESEXD3TQK2WN254I4X4E","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":"f4e13059242bab1188120f2a9d1840acd5c91755c005cb4d59fb182b881a0456","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-28T14:20:21Z","title_canon_sha256":"c338ca1579f30048f9e3d0b675e9849327f4a9bf4eefefaf2f4c6658b5449316"},"schema_version":"1.0","source":{"id":"2204.13524","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.13524","created_at":"2026-07-05T04:50:34Z"},{"alias_kind":"arxiv_version","alias_value":"2204.13524v2","created_at":"2026-07-05T04:50:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.13524","created_at":"2026-07-05T04:50:34Z"},{"alias_kind":"pith_short_12","alias_value":"X5MGMWESEXD3","created_at":"2026-07-05T04:50:34Z"},{"alias_kind":"pith_short_16","alias_value":"X5MGMWESEXD3TQK2","created_at":"2026-07-05T04:50:34Z"},{"alias_kind":"pith_short_8","alias_value":"X5MGMWES","created_at":"2026-07-05T04:50:34Z"}],"graph_snapshots":[{"event_id":"sha256:db2c18f06bb20298871bde111a29c46813d9e520b4cea5c2bc17f63f422cfd35","target":"graph","created_at":"2026-07-05T04:50:34Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2204.13524/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We perform optimal-control-theory calculations to determine the minimum number of two-qubit CNOT gates needed to perform quantum state preparation and unitary operator synthesis for few-qubit systems. By considering all possible gate configurations, we determine the maximum achievable fidelity as a function of quantum circuit size. This information allows us to identify the minimum circuit size needed for a specific target operation and enumerate the different gate configurations that allow a perfect implementation of the operation. We find that there are a large number of configurations that ","authors_text":"Fumiki Yoshihara, Kouichi Semba, Naoki Yamamoto, Sahel Ashhab","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-28T14:20:21Z","title":"Numerical analysis of quantum circuits for state preparation and unitary operator synthesis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.13524","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":"sha256:37a5972de5533752672d068d1d89465fabe667458ace1a1b9fe9c63216ac1323","target":"record","created_at":"2026-07-05T04:50:34Z","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":"f4e13059242bab1188120f2a9d1840acd5c91755c005cb4d59fb182b881a0456","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-04-28T14:20:21Z","title_canon_sha256":"c338ca1579f30048f9e3d0b675e9849327f4a9bf4eefefaf2f4c6658b5449316"},"schema_version":"1.0","source":{"id":"2204.13524","kind":"arxiv","version":2}},"canonical_sha256":"bf5866589225c7b9c15ab375de2397e12c8860dfbb4acb2acd2c9363e558d641","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf5866589225c7b9c15ab375de2397e12c8860dfbb4acb2acd2c9363e558d641","first_computed_at":"2026-07-05T04:50:34.182027Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:50:34.182027Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lGAJeVFYAsdx4UbW5S/plkThvMvxC18XBn3Y19pFaaIIXlAd2XGgdWuxKk8bAXTwGJ3nd+yBZ5FSyxHayyTbDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:50:34.182429Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.13524","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37a5972de5533752672d068d1d89465fabe667458ace1a1b9fe9c63216ac1323","sha256:db2c18f06bb20298871bde111a29c46813d9e520b4cea5c2bc17f63f422cfd35"],"state_sha256":"6aa635cdf9f70739dd5160c1498fc5d26468fff2c3a654b7383358c8b132028d"}