{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OKB7MBEQJ3TYEE5XJO57FVYIMP","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":"7118b86ddee049e67464fd8fdb598374da5d9bc58e01899e81ea76dcce7e7a0c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-11T20:09:46Z","title_canon_sha256":"214b145c779737e91e487c7106c6b3d24f3bca58506d4bcf7e867ae022ab1aca"},"schema_version":"1.0","source":{"id":"1605.03604","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.03604","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"arxiv_version","alias_value":"1605.03604v1","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.03604","created_at":"2026-05-18T01:00:45Z"},{"alias_kind":"pith_short_12","alias_value":"OKB7MBEQJ3TY","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OKB7MBEQJ3TYEE5X","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OKB7MBEQ","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:bc07c2ef4bde6f746db225afb48593e4b222251bd58d538ec58274a7cae5dd7d","target":"graph","created_at":"2026-05-18T01:00:45Z","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":"We compare the effect of single qubit incoherent and coherent errors on the logical error rate of the Steane [[7,1,3]] quantum error correction code by performing an exact full-density-matrix simulation of an error correction step. We find that the effective 1-qubit process matrix at the logical level reveals the key differences between the error models and provides insight into why the Pauli twirling approximation is a good approximation for incoherent errors and a poor approximation for coherent ones. Approximate channels composed of Clifford operations and Pauli measurement operators that a","authors_text":"Conor Smith, Kenneth R. Brown, Livia Lulushi, Mauricio Guti\\'errez, Smitha Janardan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-11T20:09:46Z","title":"Errors and pseudo-thresholds for incoherent and coherent noise"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.03604","kind":"arxiv","version":1},"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:d1d9be458a4f57729e619152432a033cddecf97506d5472be781a9b4efa9b889","target":"record","created_at":"2026-05-18T01:00:45Z","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":"7118b86ddee049e67464fd8fdb598374da5d9bc58e01899e81ea76dcce7e7a0c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-11T20:09:46Z","title_canon_sha256":"214b145c779737e91e487c7106c6b3d24f3bca58506d4bcf7e867ae022ab1aca"},"schema_version":"1.0","source":{"id":"1605.03604","kind":"arxiv","version":1}},"canonical_sha256":"7283f604904ee78213b74bbbf2d70863fe0dd69212d2da7bf9eccaeaf7935749","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7283f604904ee78213b74bbbf2d70863fe0dd69212d2da7bf9eccaeaf7935749","first_computed_at":"2026-05-18T01:00:45.602759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:45.602759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5ZLqHtzGgOlt5HDixMyOlCAwkYxHkyRKRUjz/Z0cJ8vysgtcDc5xpUxPXtVBrlchm9x7Z8EwHofp3bXtOkrPAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:45.603122Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.03604","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1d9be458a4f57729e619152432a033cddecf97506d5472be781a9b4efa9b889","sha256:bc07c2ef4bde6f746db225afb48593e4b222251bd58d538ec58274a7cae5dd7d"],"state_sha256":"2ba4ac2d85d0ec3ce06a4017f9968eb58793590f6d3fb9f3a583d0305b306b59"}