{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:DJ34FOKIQ5LIRHO4RCJA5EWODD","short_pith_number":"pith:DJ34FOKI","canonical_record":{"source":{"id":"0810.0550","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-02T23:26:50Z","cross_cats_sorted":[],"title_canon_sha256":"6f64ff894e393f8b76f198afaca202b73bb91359888487017d1878f8bc1388c5","abstract_canon_sha256":"9185d8ab57265c1a9776f97576fbb2de5a83673c5cf20ede20395617a50aa998"},"schema_version":"1.0"},"canonical_sha256":"1a77c2b9488756889ddc88920e92ce18d5ccb5be93d685ce869c9310e515951d","source":{"kind":"arxiv","id":"0810.0550","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.0550","created_at":"2026-05-18T01:17:21Z"},{"alias_kind":"arxiv_version","alias_value":"0810.0550v1","created_at":"2026-05-18T01:17:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.0550","created_at":"2026-05-18T01:17:21Z"},{"alias_kind":"pith_short_12","alias_value":"DJ34FOKIQ5LI","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"DJ34FOKIQ5LIRHO4","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"DJ34FOKI","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:DJ34FOKIQ5LIRHO4RCJA5EWODD","target":"record","payload":{"canonical_record":{"source":{"id":"0810.0550","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-02T23:26:50Z","cross_cats_sorted":[],"title_canon_sha256":"6f64ff894e393f8b76f198afaca202b73bb91359888487017d1878f8bc1388c5","abstract_canon_sha256":"9185d8ab57265c1a9776f97576fbb2de5a83673c5cf20ede20395617a50aa998"},"schema_version":"1.0"},"canonical_sha256":"1a77c2b9488756889ddc88920e92ce18d5ccb5be93d685ce869c9310e515951d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:21.456564Z","signature_b64":"OnkfZ8Ak74mTpwQ17ZRTpMRRD5wlR2Rg5WC++kz/pykbfkyyepJtOJn6NSb2vzgr5BfmvlneKNCeXhaqTOF2AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a77c2b9488756889ddc88920e92ce18d5ccb5be93d685ce869c9310e515951d","last_reissued_at":"2026-05-18T01:17:21.456101Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:21.456101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0810.0550","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":"2026-05-18T01:17:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yzqw8hsbXIYWkcNGle4R4KI754ZeXA0x5cYAYI2IRGEr8IY6b+Ye7c1QAzqrCclWWfc1FvijhnIeW8cDC2FoAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:45:06.773815Z"},"content_sha256":"a57b2a9de50e7d5b91001bfc4d563b7f7445e93f67333053c06c0597c7235e2e","schema_version":"1.0","event_id":"sha256:a57b2a9de50e7d5b91001bfc4d563b7f7445e93f67333053c06c0597c7235e2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:DJ34FOKIQ5LIRHO4RCJA5EWODD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonexistence of Entanglement Sudden Death in High NOON States","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Asma Al-Qasimi, Daniel F. V. James","submitted_at":"2008-10-02T23:26:50Z","abstract_excerpt":"We study the dynamics of entanglement in continuous variable quantum systems (CVQS). Specifically, we study the phenomena of Entanglement Sudden Death (ESD) in general two-mode-N-photon states undergoing pure dephasing. We show that for these states, ESD never occurs. These states are generalizations of the so-called High NOON states, shown to decrease the Rayleigh limit of lambda to lambda/N, which promises great improvement in resolution of interference patterns if states with large N are physically realized. However, we show that in dephasing NOON states, the time to reach V_crit, critical "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.0550","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":"2026-05-18T01:17:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NfoP39ByxnLkyt7GZahtxJy0xfOOrhJBWpo45jNScWLJqkL1dgC7J22EdwZxYTY1Fl+SnZj+6mOX5KHtqDzkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:45:06.774163Z"},"content_sha256":"30defac1a968e865b7df83ec1a9251115b6ad0751cd1584f678f96cb0bedff4f","schema_version":"1.0","event_id":"sha256:30defac1a968e865b7df83ec1a9251115b6ad0751cd1584f678f96cb0bedff4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD/bundle.json","state_url":"https://pith.science/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD/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":"2026-06-03T19:45:06Z","links":{"resolver":"https://pith.science/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD","bundle":"https://pith.science/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD/bundle.json","state":"https://pith.science/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DJ34FOKIQ5LIRHO4RCJA5EWODD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:DJ34FOKIQ5LIRHO4RCJA5EWODD","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":"9185d8ab57265c1a9776f97576fbb2de5a83673c5cf20ede20395617a50aa998","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-02T23:26:50Z","title_canon_sha256":"6f64ff894e393f8b76f198afaca202b73bb91359888487017d1878f8bc1388c5"},"schema_version":"1.0","source":{"id":"0810.0550","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.0550","created_at":"2026-05-18T01:17:21Z"},{"alias_kind":"arxiv_version","alias_value":"0810.0550v1","created_at":"2026-05-18T01:17:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.0550","created_at":"2026-05-18T01:17:21Z"},{"alias_kind":"pith_short_12","alias_value":"DJ34FOKIQ5LI","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"DJ34FOKIQ5LIRHO4","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"DJ34FOKI","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:30defac1a968e865b7df83ec1a9251115b6ad0751cd1584f678f96cb0bedff4f","target":"graph","created_at":"2026-05-18T01:17:21Z","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 study the dynamics of entanglement in continuous variable quantum systems (CVQS). Specifically, we study the phenomena of Entanglement Sudden Death (ESD) in general two-mode-N-photon states undergoing pure dephasing. We show that for these states, ESD never occurs. These states are generalizations of the so-called High NOON states, shown to decrease the Rayleigh limit of lambda to lambda/N, which promises great improvement in resolution of interference patterns if states with large N are physically realized. However, we show that in dephasing NOON states, the time to reach V_crit, critical ","authors_text":"Asma Al-Qasimi, Daniel F. V. James","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-02T23:26:50Z","title":"Nonexistence of Entanglement Sudden Death in High NOON States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.0550","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:a57b2a9de50e7d5b91001bfc4d563b7f7445e93f67333053c06c0597c7235e2e","target":"record","created_at":"2026-05-18T01:17:21Z","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":"9185d8ab57265c1a9776f97576fbb2de5a83673c5cf20ede20395617a50aa998","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-02T23:26:50Z","title_canon_sha256":"6f64ff894e393f8b76f198afaca202b73bb91359888487017d1878f8bc1388c5"},"schema_version":"1.0","source":{"id":"0810.0550","kind":"arxiv","version":1}},"canonical_sha256":"1a77c2b9488756889ddc88920e92ce18d5ccb5be93d685ce869c9310e515951d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a77c2b9488756889ddc88920e92ce18d5ccb5be93d685ce869c9310e515951d","first_computed_at":"2026-05-18T01:17:21.456101Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:21.456101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OnkfZ8Ak74mTpwQ17ZRTpMRRD5wlR2Rg5WC++kz/pykbfkyyepJtOJn6NSb2vzgr5BfmvlneKNCeXhaqTOF2AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:21.456564Z","signed_message":"canonical_sha256_bytes"},"source_id":"0810.0550","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a57b2a9de50e7d5b91001bfc4d563b7f7445e93f67333053c06c0597c7235e2e","sha256:30defac1a968e865b7df83ec1a9251115b6ad0751cd1584f678f96cb0bedff4f"],"state_sha256":"64b5b5dbeee2e5d8895d388cac9991ca49a2b745c72482b9f524692513529be9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KK0MsjrdMeOVIj5goQAv2rlAPnL4KQLhhufUHRh3X0Y6O+KU6MuFjB2C58eAgMogqQaiZq7m+ro8jurd8NC4BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T19:45:06.776191Z","bundle_sha256":"f1194c7f1297fb1dbf16bdd65544853890bc2db51685e196d28189aba157d7b2"}}