{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:5B7HKU7BQUMXN7I6SYY72VCPA2","short_pith_number":"pith:5B7HKU7B","canonical_record":{"source":{"id":"2302.13953","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-02-27T16:54:58Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"e47c5a3ddef7496b002013f548b98a54528564094cbb85404ba8050c21797c64","abstract_canon_sha256":"f55abdd833ba90f481ddd72b0826be80076ad7e835900d64e96eceda0b34967f"},"schema_version":"1.0"},"canonical_sha256":"e87e7553e1851976fd1e9631fd544f06b5c9f11c68e5e5e6967e380c835ff61a","source":{"kind":"arxiv","id":"2302.13953","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.13953","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"arxiv_version","alias_value":"2302.13953v3","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.13953","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"pith_short_12","alias_value":"5B7HKU7BQUMX","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"pith_short_16","alias_value":"5B7HKU7BQUMXN7I6","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"pith_short_8","alias_value":"5B7HKU7B","created_at":"2026-07-05T07:47:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:5B7HKU7BQUMXN7I6SYY72VCPA2","target":"record","payload":{"canonical_record":{"source":{"id":"2302.13953","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-02-27T16:54:58Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"e47c5a3ddef7496b002013f548b98a54528564094cbb85404ba8050c21797c64","abstract_canon_sha256":"f55abdd833ba90f481ddd72b0826be80076ad7e835900d64e96eceda0b34967f"},"schema_version":"1.0"},"canonical_sha256":"e87e7553e1851976fd1e9631fd544f06b5c9f11c68e5e5e6967e380c835ff61a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:47:00.897773Z","signature_b64":"DxTSorybg4VTsb91iYcMpfgA7bskVBVEU/AXDvIY8CIy4pBVe1TCtuupi/DPDRnKcRA+d2DnJg1UwKmS02KjBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e87e7553e1851976fd1e9631fd544f06b5c9f11c68e5e5e6967e380c835ff61a","last_reissued_at":"2026-07-05T07:47:00.897385Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:47:00.897385Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.13953","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:47:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lz9A2QwHeXdBk1jNmyz+NJL4RtKEp96W0l0YB8FPKyeWqmw+qXE6MV9tkI5p6zjAZXjHDVbWl+U+ghCQEOIbBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T17:06:22.085519Z"},"content_sha256":"351891ab20c8b77849a68655c2ee35f18b46e547c104478279a709502535eaa3","schema_version":"1.0","event_id":"sha256:351891ab20c8b77849a68655c2ee35f18b46e547c104478279a709502535eaa3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:5B7HKU7BQUMXN7I6SYY72VCPA2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fast simulation for multi-photon, atomic-ensemble quantum model of linear optical systems addressing the curse of dimensionality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"quant-ph","authors_text":"Akihito Soeda, Junpei Oba, Seiji Kajita","submitted_at":"2023-02-27T16:54:58Z","abstract_excerpt":"Photons are elementary particles of light in quantum mechanics, whose dynamics can be difficult to gain detailed insights, especially in complex systems. Simulation is a promising tool to resolve this issue, but it must address the curse of dimensionality, namely, that the number of bases increases exponentially in the number of photons. Here we mitigate this dimensionality scaling by focusing on optical systems composed of linear optical objects, modeled as an ensemble of two-level atoms. We decompose the time evolutionary operator on multiple photons into a group of time evolution operators "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.13953","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.13953/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T07:47:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GPzgINnLk2CVytnknKP1KbYSmICn62DZXC8cfrwn64hIuHoP7mPTsFPbU7gzSfyKHKPNkwy1Mc0SLbZndXDABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T17:06:22.086028Z"},"content_sha256":"150ba89bda6b6557663712acf110257aecee7b1acc3bdcd73c4afaf7923ec18e","schema_version":"1.0","event_id":"sha256:150ba89bda6b6557663712acf110257aecee7b1acc3bdcd73c4afaf7923ec18e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5B7HKU7BQUMXN7I6SYY72VCPA2/bundle.json","state_url":"https://pith.science/pith/5B7HKU7BQUMXN7I6SYY72VCPA2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5B7HKU7BQUMXN7I6SYY72VCPA2/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":"2026-08-19T17:06:22Z","links":{"resolver":"https://pith.science/pith/5B7HKU7BQUMXN7I6SYY72VCPA2","bundle":"https://pith.science/pith/5B7HKU7BQUMXN7I6SYY72VCPA2/bundle.json","state":"https://pith.science/pith/5B7HKU7BQUMXN7I6SYY72VCPA2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5B7HKU7BQUMXN7I6SYY72VCPA2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:5B7HKU7BQUMXN7I6SYY72VCPA2","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":"f55abdd833ba90f481ddd72b0826be80076ad7e835900d64e96eceda0b34967f","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-02-27T16:54:58Z","title_canon_sha256":"e47c5a3ddef7496b002013f548b98a54528564094cbb85404ba8050c21797c64"},"schema_version":"1.0","source":{"id":"2302.13953","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.13953","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"arxiv_version","alias_value":"2302.13953v3","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.13953","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"pith_short_12","alias_value":"5B7HKU7BQUMX","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"pith_short_16","alias_value":"5B7HKU7BQUMXN7I6","created_at":"2026-07-05T07:47:00Z"},{"alias_kind":"pith_short_8","alias_value":"5B7HKU7B","created_at":"2026-07-05T07:47:00Z"}],"graph_snapshots":[{"event_id":"sha256:150ba89bda6b6557663712acf110257aecee7b1acc3bdcd73c4afaf7923ec18e","target":"graph","created_at":"2026-07-05T07:47:00Z","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/2302.13953/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photons are elementary particles of light in quantum mechanics, whose dynamics can be difficult to gain detailed insights, especially in complex systems. Simulation is a promising tool to resolve this issue, but it must address the curse of dimensionality, namely, that the number of bases increases exponentially in the number of photons. Here we mitigate this dimensionality scaling by focusing on optical systems composed of linear optical objects, modeled as an ensemble of two-level atoms. We decompose the time evolutionary operator on multiple photons into a group of time evolution operators ","authors_text":"Akihito Soeda, Junpei Oba, Seiji Kajita","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-02-27T16:54:58Z","title":"Fast simulation for multi-photon, atomic-ensemble quantum model of linear optical systems addressing the curse of dimensionality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.13953","kind":"arxiv","version":3},"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":"sha256:351891ab20c8b77849a68655c2ee35f18b46e547c104478279a709502535eaa3","target":"record","created_at":"2026-07-05T07:47:00Z","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":"f55abdd833ba90f481ddd72b0826be80076ad7e835900d64e96eceda0b34967f","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-02-27T16:54:58Z","title_canon_sha256":"e47c5a3ddef7496b002013f548b98a54528564094cbb85404ba8050c21797c64"},"schema_version":"1.0","source":{"id":"2302.13953","kind":"arxiv","version":3}},"canonical_sha256":"e87e7553e1851976fd1e9631fd544f06b5c9f11c68e5e5e6967e380c835ff61a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e87e7553e1851976fd1e9631fd544f06b5c9f11c68e5e5e6967e380c835ff61a","first_computed_at":"2026-07-05T07:47:00.897385Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:47:00.897385Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DxTSorybg4VTsb91iYcMpfgA7bskVBVEU/AXDvIY8CIy4pBVe1TCtuupi/DPDRnKcRA+d2DnJg1UwKmS02KjBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:47:00.897773Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.13953","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:351891ab20c8b77849a68655c2ee35f18b46e547c104478279a709502535eaa3","sha256:150ba89bda6b6557663712acf110257aecee7b1acc3bdcd73c4afaf7923ec18e"],"state_sha256":"ef494f43a79b4da80229bd949af08bb3cb08a3704f7e8119c93ee3ccc5a54536"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6x4MMtHL2tvi7FrdvMWTahLPtGgTivIq6XIs+DDdyJnJl6ujsvLhhp/ERlM0OgXpt3wb/IIGa5wdbOGoT5JrDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T17:06:22.090156Z","bundle_sha256":"0e3a1e506cf1afba4e2cc2bd803820adae1eca05e5970bd2eeb05938539e6a4c"}}