{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:DNRCNYW3IEKLLCKBYXXE75LFAA","short_pith_number":"pith:DNRCNYW3","canonical_record":{"source":{"id":"1204.5598","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-25T09:36:03Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"4f29e39348c87e6347ebf2c895c45287c4c67fa7c4ce6c20f276ea55b35b4c19","abstract_canon_sha256":"b42974893220f0aff05816cc500faa557ab001f910b93287ac050c551deb1c28"},"schema_version":"1.0"},"canonical_sha256":"1b6226e2db4114b58941c5ee4ff565002ff71374becd2f8c65d8b7cc8b239e72","source":{"kind":"arxiv","id":"1204.5598","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5598","created_at":"2026-05-18T03:34:38Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5598v3","created_at":"2026-05-18T03:34:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5598","created_at":"2026-05-18T03:34:38Z"},{"alias_kind":"pith_short_12","alias_value":"DNRCNYW3IEKL","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DNRCNYW3IEKLLCKB","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DNRCNYW3","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:DNRCNYW3IEKLLCKBYXXE75LFAA","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5598","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-25T09:36:03Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"4f29e39348c87e6347ebf2c895c45287c4c67fa7c4ce6c20f276ea55b35b4c19","abstract_canon_sha256":"b42974893220f0aff05816cc500faa557ab001f910b93287ac050c551deb1c28"},"schema_version":"1.0"},"canonical_sha256":"1b6226e2db4114b58941c5ee4ff565002ff71374becd2f8c65d8b7cc8b239e72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:34:38.263889Z","signature_b64":"5/WAsSf6wzfQOiIfP8c7dwIuII8Xf3bi18P3BKzboUkFy9WvSf++4JDB2SzAibP0XCNq9iMwod80wKAfnOLoAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b6226e2db4114b58941c5ee4ff565002ff71374becd2f8c65d8b7cc8b239e72","last_reissued_at":"2026-05-18T03:34:38.263292Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:34:38.263292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5598","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":"2026-05-18T03:34:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FVxpfVZp4aBEQhf4GZXzE8HwIKoRXNc6kzl7TXHvRKbKFgyEkycJtWKSM63BrrcgSJFA6WXrn8fc1LtJR9wwDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T10:39:10.626140Z"},"content_sha256":"9cba07e01bfa4856699ce663bdc64b608f3814e1bf1d8ab16f06bec29811afd0","schema_version":"1.0","event_id":"sha256:9cba07e01bfa4856699ce663bdc64b608f3814e1bf1d8ab16f06bec29811afd0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:DNRCNYW3IEKLLCKBYXXE75LFAA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cooperativity in light scattering by cold atoms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"Nicola Piovella, Robin Kaiser, Romain Bachelard, Tom Bienaime","submitted_at":"2012-04-25T09:36:03Z","abstract_excerpt":"A cloud of cold N two-level atoms driven by a resonant laser beam shows cooperative effects both in the scattered radiation field and in the radiation pressure force acting on the cloud center-of-mass. The induced dipoles synchronize and the scattered light presents superradiant and/or subradiant features. We present a quantum description of the process in terms of a master equation for the atomic density matrix in the scalar, Born-Markov approximations, reduced to the single-excitation limit. From a perturbative approach for weak incident field, we derive from the master equation the effectiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5598","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":""},"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":"2026-05-18T03:34:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QMBp+p43hlqtlK1F6Hjr6aJcYFe+swXNtmAOfllaOlfIAB3gLtvfdmyU3MpIb2MinWH7e1GqqYUIEbCdYpkmDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T10:39:10.626506Z"},"content_sha256":"a400d5ea9c4e7687fd931668ead45dea36058e86d6b1cfa70c5065e0e26fb50a","schema_version":"1.0","event_id":"sha256:a400d5ea9c4e7687fd931668ead45dea36058e86d6b1cfa70c5065e0e26fb50a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DNRCNYW3IEKLLCKBYXXE75LFAA/bundle.json","state_url":"https://pith.science/pith/DNRCNYW3IEKLLCKBYXXE75LFAA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DNRCNYW3IEKLLCKBYXXE75LFAA/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":"2026-06-04T10:39:10Z","links":{"resolver":"https://pith.science/pith/DNRCNYW3IEKLLCKBYXXE75LFAA","bundle":"https://pith.science/pith/DNRCNYW3IEKLLCKBYXXE75LFAA/bundle.json","state":"https://pith.science/pith/DNRCNYW3IEKLLCKBYXXE75LFAA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DNRCNYW3IEKLLCKBYXXE75LFAA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DNRCNYW3IEKLLCKBYXXE75LFAA","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":"b42974893220f0aff05816cc500faa557ab001f910b93287ac050c551deb1c28","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-25T09:36:03Z","title_canon_sha256":"4f29e39348c87e6347ebf2c895c45287c4c67fa7c4ce6c20f276ea55b35b4c19"},"schema_version":"1.0","source":{"id":"1204.5598","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5598","created_at":"2026-05-18T03:34:38Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5598v3","created_at":"2026-05-18T03:34:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5598","created_at":"2026-05-18T03:34:38Z"},{"alias_kind":"pith_short_12","alias_value":"DNRCNYW3IEKL","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DNRCNYW3IEKLLCKB","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DNRCNYW3","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:a400d5ea9c4e7687fd931668ead45dea36058e86d6b1cfa70c5065e0e26fb50a","target":"graph","created_at":"2026-05-18T03:34:38Z","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":"A cloud of cold N two-level atoms driven by a resonant laser beam shows cooperative effects both in the scattered radiation field and in the radiation pressure force acting on the cloud center-of-mass. The induced dipoles synchronize and the scattered light presents superradiant and/or subradiant features. We present a quantum description of the process in terms of a master equation for the atomic density matrix in the scalar, Born-Markov approximations, reduced to the single-excitation limit. From a perturbative approach for weak incident field, we derive from the master equation the effectiv","authors_text":"Nicola Piovella, Robin Kaiser, Romain Bachelard, Tom Bienaime","cross_cats":["physics.optics","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-25T09:36:03Z","title":"Cooperativity in light scattering by cold atoms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5598","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":"sha256:9cba07e01bfa4856699ce663bdc64b608f3814e1bf1d8ab16f06bec29811afd0","target":"record","created_at":"2026-05-18T03:34:38Z","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":"b42974893220f0aff05816cc500faa557ab001f910b93287ac050c551deb1c28","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-25T09:36:03Z","title_canon_sha256":"4f29e39348c87e6347ebf2c895c45287c4c67fa7c4ce6c20f276ea55b35b4c19"},"schema_version":"1.0","source":{"id":"1204.5598","kind":"arxiv","version":3}},"canonical_sha256":"1b6226e2db4114b58941c5ee4ff565002ff71374becd2f8c65d8b7cc8b239e72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b6226e2db4114b58941c5ee4ff565002ff71374becd2f8c65d8b7cc8b239e72","first_computed_at":"2026-05-18T03:34:38.263292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:34:38.263292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5/WAsSf6wzfQOiIfP8c7dwIuII8Xf3bi18P3BKzboUkFy9WvSf++4JDB2SzAibP0XCNq9iMwod80wKAfnOLoAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:34:38.263889Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5598","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9cba07e01bfa4856699ce663bdc64b608f3814e1bf1d8ab16f06bec29811afd0","sha256:a400d5ea9c4e7687fd931668ead45dea36058e86d6b1cfa70c5065e0e26fb50a"],"state_sha256":"f332a26e8b3116f31ebe556556caf63ab2975730f8d4f07c6e239a3c825a9fa2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zWlAnG3g6qGPSNpFf/E8PrvqXSRYVFE3N610Ek7iFgltW0VeK2QmVGSqTfwypFs/bl0wSD9YoJI1rC2i9FvAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T10:39:10.628483Z","bundle_sha256":"4e2e98feb16c3971d8bedf71ea66bfe7ce292bfcfe347af0f524d8dc47d2a455"}}