{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:COJXFAEBBWQMFTLMECA7VHRO3J","short_pith_number":"pith:COJXFAEB","canonical_record":{"source":{"id":"1303.0055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-03-01T00:14:16Z","cross_cats_sorted":[],"title_canon_sha256":"23cb875236b87c7e39fb37358dc860b96bdd1de98c0766c74d6112ed8d6bd076","abstract_canon_sha256":"ca68612f452640d6cec15f1156295e7032c8c63d7864b5c5caefb27b1d2a7ba5"},"schema_version":"1.0"},"canonical_sha256":"13937280810da0c2cd6c2081fa9e2eda6ca14678ce77e9dc58d2b2ffdccc3d22","source":{"kind":"arxiv","id":"1303.0055","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.0055","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"arxiv_version","alias_value":"1303.0055v1","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.0055","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"pith_short_12","alias_value":"COJXFAEBBWQM","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"COJXFAEBBWQMFTLM","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"COJXFAEB","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:COJXFAEBBWQMFTLMECA7VHRO3J","target":"record","payload":{"canonical_record":{"source":{"id":"1303.0055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-03-01T00:14:16Z","cross_cats_sorted":[],"title_canon_sha256":"23cb875236b87c7e39fb37358dc860b96bdd1de98c0766c74d6112ed8d6bd076","abstract_canon_sha256":"ca68612f452640d6cec15f1156295e7032c8c63d7864b5c5caefb27b1d2a7ba5"},"schema_version":"1.0"},"canonical_sha256":"13937280810da0c2cd6c2081fa9e2eda6ca14678ce77e9dc58d2b2ffdccc3d22","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:20.128024Z","signature_b64":"j8gK5SFwv6MFwSMe/ew6uGyP8rP7F7cN/60Zxltb02E3DmUVq+WdjJbmbT7JXUih22MhYSErdAlN/k1hFm0GBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13937280810da0c2cd6c2081fa9e2eda6ca14678ce77e9dc58d2b2ffdccc3d22","last_reissued_at":"2026-05-18T03:31:20.127359Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:20.127359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.0055","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:31:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N55FFHKixjXm4wayD/SJQaoAyujTkPDQz5pN/6cG58jPtV2zoYas9yrMcs3Y5IxlPMUxaBVSy2jZzLDLlCZ0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:08:36.962265Z"},"content_sha256":"44026f678efe1800596c8bab9e5ee9ebef031b9fe1f6aa767fead046c7931972","schema_version":"1.0","event_id":"sha256:44026f678efe1800596c8bab9e5ee9ebef031b9fe1f6aa767fead046c7931972"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:COJXFAEBBWQMFTLMECA7VHRO3J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Operator Quantum Zeno Effect: Protecting Quantum Information with Noisy Two-Qubit Interactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Leong Chuan Kwek, Shu-Chao Wang, Xiang-Bin Wang, Ying Li","submitted_at":"2013-03-01T00:14:16Z","abstract_excerpt":"The time evolution of some quantum states can be slowed down or even stopped under frequent measurements. This is the usual quantum Zeno effect. Here, we report an operator quantum Zeno effect, in which the evolution of some physical observables is slowed down through measurements even though the quantum state changes randomly with time. Based on the operator quantum Zeno effect, we show how we can protect quantum information from decoherence with two-qubit measurements, realizable with noisy two-qubit interactions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.0055","kind":"arxiv","version":1},"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":"2026-05-18T03:31:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RK0WH0ZENnm3C84wekr07bjYbKweqFgo/pTt30A4JHX9QI6nGSIaqLY92Pg9iWiTIfDWMnU3lgufZRir41gEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:08:36.962626Z"},"content_sha256":"611c71e5ba8b0c5e00e89c48cb5410441d39728f5310dc4bdf99ac936a837913","schema_version":"1.0","event_id":"sha256:611c71e5ba8b0c5e00e89c48cb5410441d39728f5310dc4bdf99ac936a837913"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/COJXFAEBBWQMFTLMECA7VHRO3J/bundle.json","state_url":"https://pith.science/pith/COJXFAEBBWQMFTLMECA7VHRO3J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/COJXFAEBBWQMFTLMECA7VHRO3J/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":"2026-05-28T07:08:36Z","links":{"resolver":"https://pith.science/pith/COJXFAEBBWQMFTLMECA7VHRO3J","bundle":"https://pith.science/pith/COJXFAEBBWQMFTLMECA7VHRO3J/bundle.json","state":"https://pith.science/pith/COJXFAEBBWQMFTLMECA7VHRO3J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/COJXFAEBBWQMFTLMECA7VHRO3J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:COJXFAEBBWQMFTLMECA7VHRO3J","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":"ca68612f452640d6cec15f1156295e7032c8c63d7864b5c5caefb27b1d2a7ba5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-03-01T00:14:16Z","title_canon_sha256":"23cb875236b87c7e39fb37358dc860b96bdd1de98c0766c74d6112ed8d6bd076"},"schema_version":"1.0","source":{"id":"1303.0055","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.0055","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"arxiv_version","alias_value":"1303.0055v1","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.0055","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"pith_short_12","alias_value":"COJXFAEBBWQM","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"COJXFAEBBWQMFTLM","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"COJXFAEB","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:611c71e5ba8b0c5e00e89c48cb5410441d39728f5310dc4bdf99ac936a837913","target":"graph","created_at":"2026-05-18T03:31:20Z","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":"The time evolution of some quantum states can be slowed down or even stopped under frequent measurements. This is the usual quantum Zeno effect. Here, we report an operator quantum Zeno effect, in which the evolution of some physical observables is slowed down through measurements even though the quantum state changes randomly with time. Based on the operator quantum Zeno effect, we show how we can protect quantum information from decoherence with two-qubit measurements, realizable with noisy two-qubit interactions.","authors_text":"Leong Chuan Kwek, Shu-Chao Wang, Xiang-Bin Wang, Ying Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-03-01T00:14:16Z","title":"Operator Quantum Zeno Effect: Protecting Quantum Information with Noisy Two-Qubit Interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.0055","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":"sha256:44026f678efe1800596c8bab9e5ee9ebef031b9fe1f6aa767fead046c7931972","target":"record","created_at":"2026-05-18T03:31:20Z","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":"ca68612f452640d6cec15f1156295e7032c8c63d7864b5c5caefb27b1d2a7ba5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-03-01T00:14:16Z","title_canon_sha256":"23cb875236b87c7e39fb37358dc860b96bdd1de98c0766c74d6112ed8d6bd076"},"schema_version":"1.0","source":{"id":"1303.0055","kind":"arxiv","version":1}},"canonical_sha256":"13937280810da0c2cd6c2081fa9e2eda6ca14678ce77e9dc58d2b2ffdccc3d22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13937280810da0c2cd6c2081fa9e2eda6ca14678ce77e9dc58d2b2ffdccc3d22","first_computed_at":"2026-05-18T03:31:20.127359Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:20.127359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j8gK5SFwv6MFwSMe/ew6uGyP8rP7F7cN/60Zxltb02E3DmUVq+WdjJbmbT7JXUih22MhYSErdAlN/k1hFm0GBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:20.128024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.0055","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:44026f678efe1800596c8bab9e5ee9ebef031b9fe1f6aa767fead046c7931972","sha256:611c71e5ba8b0c5e00e89c48cb5410441d39728f5310dc4bdf99ac936a837913"],"state_sha256":"8a7d316a2c317f5521fc2bbd85db52611e5ac99965be50f8f63bc1bc55ef6bc3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yUrlkuW4sg3v7GmqHGPkSJvvHDxk4tyho/W7gTVeUnu8pNUs2KsT1Gi6csWn3wz5lpR/sV0UivTCuTI9bodXCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:08:36.964591Z","bundle_sha256":"89286d7282e952e31a559ffa294ceaa9621290669d152dd3cf43594eb93d2b68"}}