{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MTMWTQ7K2NIPVLH4RBWLTJ2JIB","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":"1b58c80c1f82a1d5bf61a6e50e2046d7a838842b086e2d587cef66ecfa226ef6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2022-12-22T18:07:29Z","title_canon_sha256":"3a8acca20c721d70a24c24e79895f35111e9c0068e52b497959495dda422269a"},"schema_version":"1.0","source":{"id":"2212.11929","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.11929","created_at":"2026-07-05T06:26:44Z"},{"alias_kind":"arxiv_version","alias_value":"2212.11929v2","created_at":"2026-07-05T06:26:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.11929","created_at":"2026-07-05T06:26:44Z"},{"alias_kind":"pith_short_12","alias_value":"MTMWTQ7K2NIP","created_at":"2026-07-05T06:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"MTMWTQ7K2NIPVLH4","created_at":"2026-07-05T06:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"MTMWTQ7K","created_at":"2026-07-05T06:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:4246e0aafd457beb389d8d95940c7edcad037a211e84c96fd9b9bce330c549f1","target":"graph","created_at":"2026-07-05T06:26:44Z","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/2212.11929/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Encoding a qubit in a high quality superconducting microwave cavity offers the opportunity to perform the first layer of error correction in a single device, but presents a challenge: how can quantum oscillators be controlled while introducing a minimal number of additional error channels? We focus on the two-qubit portion of this control problem by using a 3-wave mixing coupling element to engineer a programmable beamsplitter interaction between two bosonic modes separated by more than an octave in frequency, without introducing major additional sources of decoherence. Combining this with sin","authors_text":"Akshay Koottandavida, Alec Eickbusch, Alexander P. Read, Benjamin J. Chapman, Jacob C. Curtis, James Teoh, Luigi Frunzio, M. H. Devoret, R. J. Schoelkopf, Shantanu O. Mundhada, S. M. Girvin, Sophia H. Xue, Stijn J. de Graaf, Takahiro Tsunoda, Yaxing Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2022-12-22T18:07:29Z","title":"A high on-off ratio beamsplitter interaction for gates on bosonically encoded qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.11929","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":"sha256:515c569b4234f8bcb281f171dd454f65c6f13369109161e15323ba156043d272","target":"record","created_at":"2026-07-05T06:26:44Z","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":"1b58c80c1f82a1d5bf61a6e50e2046d7a838842b086e2d587cef66ecfa226ef6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2022-12-22T18:07:29Z","title_canon_sha256":"3a8acca20c721d70a24c24e79895f35111e9c0068e52b497959495dda422269a"},"schema_version":"1.0","source":{"id":"2212.11929","kind":"arxiv","version":2}},"canonical_sha256":"64d969c3ead350faacfc886cb9a7494067d0d0cd7d9e8ec9d4b92026296eefd5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64d969c3ead350faacfc886cb9a7494067d0d0cd7d9e8ec9d4b92026296eefd5","first_computed_at":"2026-07-05T06:26:44.880441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:26:44.880441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PZF3X5Ax4mc1JOXqy3uuaDZXpjpWOkvWPvCxY3DYsDGxijyxLRGqP0XpxpdA0cKeCbG+aJfVtmCebsgHXVW9Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T06:26:44.880909Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.11929","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:515c569b4234f8bcb281f171dd454f65c6f13369109161e15323ba156043d272","sha256:4246e0aafd457beb389d8d95940c7edcad037a211e84c96fd9b9bce330c549f1"],"state_sha256":"b0ea6883de6f98ae9d874a6d208d7b1609966b534ca4bc4c36c392b7506b16e5"}