{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QFFUWMXXYFLYGQZF6P6BBUFO7F","short_pith_number":"pith:QFFUWMXX","canonical_record":{"source":{"id":"1805.02358","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2018-05-07T06:17:47Z","cross_cats_sorted":[],"title_canon_sha256":"7291dc3b50f3d61014db96cd4282c13c31db9187a81a398c6f99b329fb99be9c","abstract_canon_sha256":"f358a3d1c3be032019e6f8e930c4efdb2b32cd7c4c2754696e045a58d9eb6acb"},"schema_version":"1.0"},"canonical_sha256":"814b4b32f7c157834325f3fc10d0aef965ec4f046fa1b897c3a5790a27435028","source":{"kind":"arxiv","id":"1805.02358","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.02358","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"arxiv_version","alias_value":"1805.02358v1","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.02358","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"pith_short_12","alias_value":"QFFUWMXXYFLY","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QFFUWMXXYFLYGQZF","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QFFUWMXX","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QFFUWMXXYFLYGQZF6P6BBUFO7F","target":"record","payload":{"canonical_record":{"source":{"id":"1805.02358","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2018-05-07T06:17:47Z","cross_cats_sorted":[],"title_canon_sha256":"7291dc3b50f3d61014db96cd4282c13c31db9187a81a398c6f99b329fb99be9c","abstract_canon_sha256":"f358a3d1c3be032019e6f8e930c4efdb2b32cd7c4c2754696e045a58d9eb6acb"},"schema_version":"1.0"},"canonical_sha256":"814b4b32f7c157834325f3fc10d0aef965ec4f046fa1b897c3a5790a27435028","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:54.144162Z","signature_b64":"K9SKjIOB22hX/1e6eCYDdWt5XSOQKtvmeNnKOtY50MyELAuIqpXkAlfLVN/I3e/5T0MZ/8p43Rs3kZ3ZRAcACg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"814b4b32f7c157834325f3fc10d0aef965ec4f046fa1b897c3a5790a27435028","last_reissued_at":"2026-05-18T00:15:54.143345Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:54.143345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.02358","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":"2026-05-18T00:15:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z1rzhufrXMWdxl0qiXoq3tD63nNHdSI63Jl8z30MCfPI7o1MKXBcCpO3Pa2jlKzTyvn1tn3p7hcn0dHGoTraBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:10:03.768464Z"},"content_sha256":"52804534ca635cdae327c45c56eaa76cad8db64efb71e49e5574813e5639004a","schema_version":"1.0","event_id":"sha256:52804534ca635cdae327c45c56eaa76cad8db64efb71e49e5574813e5639004a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QFFUWMXXYFLYGQZF6P6BBUFO7F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of loss on the phase sensitivity with parity detection in an SU(1,1) interferometer","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chun-Hua Yuan, Dong Li, Mo Li, Wei Jiang, Weiping Zhang, Yao Yao","submitted_at":"2018-05-07T06:17:47Z","abstract_excerpt":"We theoretically study the effects of loss on the phase sensitivity of an SU(1,1) interferometer with parity detection with various input states. We show that although the sensitivity of phase estimation decreases in the presence of loss, it can still beat the shot-noise limit with small loss. To examine the performance of parity detection, the comparison is performed among homodyne detection, intensity detection, and parity detection. Compared with homodyne detection and intensity detection, parity detection has a slight better optimal phase sensitivity in the absence of loss, but has a worse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02358","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":"2026-05-18T00:15:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sG215T/LFEf1KZOcgqFPYSWK/Zm0xRGJzzLnWjaJG0vgJp3HUq3McEDP9aswMVJktz/0qfwFCLB7mNWZJwmGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:10:03.769140Z"},"content_sha256":"f9718c4396f3f6a5dd9d477e62a352fe34ccdd3c9a9ca5d6ccf206d9fb001202","schema_version":"1.0","event_id":"sha256:f9718c4396f3f6a5dd9d477e62a352fe34ccdd3c9a9ca5d6ccf206d9fb001202"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F/bundle.json","state_url":"https://pith.science/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F/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":"2026-05-26T07:10:03Z","links":{"resolver":"https://pith.science/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F","bundle":"https://pith.science/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F/bundle.json","state":"https://pith.science/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QFFUWMXXYFLYGQZF6P6BBUFO7F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QFFUWMXXYFLYGQZF6P6BBUFO7F","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":"f358a3d1c3be032019e6f8e930c4efdb2b32cd7c4c2754696e045a58d9eb6acb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2018-05-07T06:17:47Z","title_canon_sha256":"7291dc3b50f3d61014db96cd4282c13c31db9187a81a398c6f99b329fb99be9c"},"schema_version":"1.0","source":{"id":"1805.02358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.02358","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"arxiv_version","alias_value":"1805.02358v1","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.02358","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"pith_short_12","alias_value":"QFFUWMXXYFLY","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QFFUWMXXYFLYGQZF","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QFFUWMXX","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:f9718c4396f3f6a5dd9d477e62a352fe34ccdd3c9a9ca5d6ccf206d9fb001202","target":"graph","created_at":"2026-05-18T00:15:54Z","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 theoretically study the effects of loss on the phase sensitivity of an SU(1,1) interferometer with parity detection with various input states. We show that although the sensitivity of phase estimation decreases in the presence of loss, it can still beat the shot-noise limit with small loss. To examine the performance of parity detection, the comparison is performed among homodyne detection, intensity detection, and parity detection. Compared with homodyne detection and intensity detection, parity detection has a slight better optimal phase sensitivity in the absence of loss, but has a worse","authors_text":"Chun-Hua Yuan, Dong Li, Mo Li, Wei Jiang, Weiping Zhang, Yao Yao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2018-05-07T06:17:47Z","title":"Effects of loss on the phase sensitivity with parity detection in an SU(1,1) interferometer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02358","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":"sha256:52804534ca635cdae327c45c56eaa76cad8db64efb71e49e5574813e5639004a","target":"record","created_at":"2026-05-18T00:15:54Z","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":"f358a3d1c3be032019e6f8e930c4efdb2b32cd7c4c2754696e045a58d9eb6acb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2018-05-07T06:17:47Z","title_canon_sha256":"7291dc3b50f3d61014db96cd4282c13c31db9187a81a398c6f99b329fb99be9c"},"schema_version":"1.0","source":{"id":"1805.02358","kind":"arxiv","version":1}},"canonical_sha256":"814b4b32f7c157834325f3fc10d0aef965ec4f046fa1b897c3a5790a27435028","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"814b4b32f7c157834325f3fc10d0aef965ec4f046fa1b897c3a5790a27435028","first_computed_at":"2026-05-18T00:15:54.143345Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:54.143345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K9SKjIOB22hX/1e6eCYDdWt5XSOQKtvmeNnKOtY50MyELAuIqpXkAlfLVN/I3e/5T0MZ/8p43Rs3kZ3ZRAcACg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:54.144162Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.02358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52804534ca635cdae327c45c56eaa76cad8db64efb71e49e5574813e5639004a","sha256:f9718c4396f3f6a5dd9d477e62a352fe34ccdd3c9a9ca5d6ccf206d9fb001202"],"state_sha256":"2eeaf2398223f02e4d7a9b71da2d8fae9aaf19e91261d257495992d0ad9d6e61"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f+0Z3nOXPOcjVpKETTTb1SxGdqzqGa9d4YLEgfj4632VnHFbZe92/dJJ6YY1hfhVoZVDAw8B9LyQ6xEQKmH1DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:10:03.772737Z","bundle_sha256":"9567093c9e625af10040405b657e84d7326902d49a1caadf6f8b976d50a99939"}}