{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:PONB37BPIFUA657LHJBVZOUHT7","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":"d4afafd84c801ab623415a746e3d4908afec7c7f5968e43c8c2a50964d945fa5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-09-06T13:28:04Z","title_canon_sha256":"0a4e2c3ddd294be7d11668044b2605c5294c24d1859f121bf1847e68f496cfd6"},"schema_version":"1.0","source":{"id":"2209.02481","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.02481","created_at":"2026-07-05T04:55:11Z"},{"alias_kind":"arxiv_version","alias_value":"2209.02481v1","created_at":"2026-07-05T04:55:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.02481","created_at":"2026-07-05T04:55:11Z"},{"alias_kind":"pith_short_12","alias_value":"PONB37BPIFUA","created_at":"2026-07-05T04:55:11Z"},{"alias_kind":"pith_short_16","alias_value":"PONB37BPIFUA657L","created_at":"2026-07-05T04:55:11Z"},{"alias_kind":"pith_short_8","alias_value":"PONB37BP","created_at":"2026-07-05T04:55:11Z"}],"graph_snapshots":[{"event_id":"sha256:976b2d2bade7c7af9f79b85a75c78cd970ebb10cb43f0d495f4e81f191b84c61","target":"graph","created_at":"2026-07-05T04:55:11Z","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/2209.02481/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nonorthogonal quantum state discrimination (QSD) plays an important role in quantum information and quantum communication. In addition, compared to Hermitian quantum systems, parity-time-($\\mathcal{PT}$-)symmetric non-Hermitian quantum systems exhibit novel phenomena and have attracted considerable attention. Here, we experimentally demonstrate QSD in a $\\mathcal{PT}$-symmetric system (i.e., $\\mathcal{PT}$-symmetric QSD), by having quantum states evolve under a $\\mathcal{PT}$-symmetric Hamiltonian in a lossy linear optical setup. We observe that two initially nonorthogonal states can rapidly e","authors_text":"Chui-ping Yang, Dong-Xu Chen, Franco Nori, Jun-Long Zhao, Qi-Cheng Wu, Yu-Liang Fang, Yu Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-09-06T13:28:04Z","title":"Quantum state discrimination in a PT-symmetric system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.02481","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":"sha256:3bf5a95cc236813658863e50cb54d72755674830707bc7a86e3902df6df6f20e","target":"record","created_at":"2026-07-05T04:55:11Z","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":"d4afafd84c801ab623415a746e3d4908afec7c7f5968e43c8c2a50964d945fa5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-09-06T13:28:04Z","title_canon_sha256":"0a4e2c3ddd294be7d11668044b2605c5294c24d1859f121bf1847e68f496cfd6"},"schema_version":"1.0","source":{"id":"2209.02481","kind":"arxiv","version":1}},"canonical_sha256":"7b9a1dfc2f41680f77eb3a435cba879fc4c3a34b4ef04294f94bb171aa18c140","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b9a1dfc2f41680f77eb3a435cba879fc4c3a34b4ef04294f94bb171aa18c140","first_computed_at":"2026-07-05T04:55:11.766053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:55:11.766053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/5HwSvdbU1MmmRXjKWF85esQ8z/h17iMsfPeGcYznGeDeG1qWO0O04bQ0gZIsMWFg0f9XZQfMQQCTCf7BpIGAA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:55:11.766485Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.02481","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bf5a95cc236813658863e50cb54d72755674830707bc7a86e3902df6df6f20e","sha256:976b2d2bade7c7af9f79b85a75c78cd970ebb10cb43f0d495f4e81f191b84c61"],"state_sha256":"d2973ec150eddcb1df862fd79faecce3dc11f8e79b9aa8dbc3f83199facde88d"}