{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:26QKQVCSFZF3URIL7Z3XZJDZEF","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":"089d1e1ddc2e3fd46c4fca99fca82ac885e92fbae7c1df461e9b0d650405d4d1","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-06-03T02:28:30Z","title_canon_sha256":"33c15004c3e87919f185e764417a71b10dc0c137673c02d16c8af314672ac429"},"schema_version":"1.0","source":{"id":"1106.0553","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.0553","created_at":"2026-05-18T04:12:56Z"},{"alias_kind":"arxiv_version","alias_value":"1106.0553v1","created_at":"2026-05-18T04:12:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.0553","created_at":"2026-05-18T04:12:56Z"},{"alias_kind":"pith_short_12","alias_value":"26QKQVCSFZF3","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"26QKQVCSFZF3URIL","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"26QKQVCS","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:1976595a44c7f469f1fa1cdc250eb596c4694e8fcf6b10118180a35551b7cc52","target":"graph","created_at":"2026-05-18T04:12:56Z","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 demonstrate an all-microwave two-qubit gate on superconducting qubits which are fixed in frequency at optimal bias points. The gate requires no additional subcircuitry and is tunable via the amplitude of microwave irradiation on one qubit at the transition frequency of the other. We use the gate to generate entangled states with a maximal extracted concurrence of 0.88 and quantum process tomography reveals a gate fidelity of 81%.","authors_text":"A. D. Corcoles, B. R. Johnson, Chad Rigetti, George A. Keefe, Jay M. Gambetta, Jerry M. Chow, John A. Smolin, J. R. Rozen, Mark B. Ketchen, Mary B. Rothwell, M. Steffen","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-06-03T02:28:30Z","title":"A simple all-microwave entangling gate for fixed-frequency superconducting qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.0553","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":"sha256:639a41dec248c4a3ccb79d2e6e6c5045a344551e1fb4c619d4f8cafe939e077b","target":"record","created_at":"2026-05-18T04:12:56Z","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":"089d1e1ddc2e3fd46c4fca99fca82ac885e92fbae7c1df461e9b0d650405d4d1","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-06-03T02:28:30Z","title_canon_sha256":"33c15004c3e87919f185e764417a71b10dc0c137673c02d16c8af314672ac429"},"schema_version":"1.0","source":{"id":"1106.0553","kind":"arxiv","version":1}},"canonical_sha256":"d7a0a854522e4bba450bfe777ca479217d14a326632b1a6d5df089e19c6d0e7a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7a0a854522e4bba450bfe777ca479217d14a326632b1a6d5df089e19c6d0e7a","first_computed_at":"2026-05-18T04:12:56.308086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:56.308086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4LXeSPr5E1zd7Q0d3+MZ3MCq0o/u5z5j4/8XTNZeHy759S8FIWH0dmzvRVgZBbwJo7q7mzi19Nyalg+IBJaKDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:56.308587Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.0553","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:639a41dec248c4a3ccb79d2e6e6c5045a344551e1fb4c619d4f8cafe939e077b","sha256:1976595a44c7f469f1fa1cdc250eb596c4694e8fcf6b10118180a35551b7cc52"],"state_sha256":"63d6b92121ebc5f4eaaa5db32731a48a521461103b42191ac31c542d29e7b174"}