{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:5GWFTYQJLWILEBJOT3T3TATN2P","short_pith_number":"pith:5GWFTYQJ","canonical_record":{"source":{"id":"1109.3412","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-15T17:44:09Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"36bc9518b90ca7a490cb758325ae75d7c79c27b44d83b1d5246fc0f227829682","abstract_canon_sha256":"20296a67a4350acca5c5be257aec18b68b6ab1aa869ef8f79a260833ff9391ef"},"schema_version":"1.0"},"canonical_sha256":"e9ac59e2095d90b2052e9ee7b9826dd3e4b5b1bf6d876bc09ed8ca9d1bc6c380","source":{"kind":"arxiv","id":"1109.3412","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3412","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3412v1","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3412","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"pith_short_12","alias_value":"5GWFTYQJLWIL","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5GWFTYQJLWILEBJO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5GWFTYQJ","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:5GWFTYQJLWILEBJOT3T3TATN2P","target":"record","payload":{"canonical_record":{"source":{"id":"1109.3412","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-15T17:44:09Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"36bc9518b90ca7a490cb758325ae75d7c79c27b44d83b1d5246fc0f227829682","abstract_canon_sha256":"20296a67a4350acca5c5be257aec18b68b6ab1aa869ef8f79a260833ff9391ef"},"schema_version":"1.0"},"canonical_sha256":"e9ac59e2095d90b2052e9ee7b9826dd3e4b5b1bf6d876bc09ed8ca9d1bc6c380","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:50:37.577688Z","signature_b64":"6cT/8T2XxtuQOKSW4xTC2PyrWBIaoZ3EKkK9qcJq6kWP+sRKx9kOvvacmlfBza43KjbJFfCE7EZ8NHkxr0y/AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9ac59e2095d90b2052e9ee7b9826dd3e4b5b1bf6d876bc09ed8ca9d1bc6c380","last_reissued_at":"2026-05-18T03:50:37.577052Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:50:37.577052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.3412","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":"2026-05-18T03:50:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GJlRvcL3+WRsSxrAVxQCm3r598vyzHRJhpZyKMi7Y9IXYyt8yq/nPN6E31aHSrAMmDBDutla07yqsip3Alh8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T17:06:20.015965Z"},"content_sha256":"8e74ac0396c965022310a45a6c6b6d6cef1c241ff8a324b1894153804a3bf93e","schema_version":"1.0","event_id":"sha256:8e74ac0396c965022310a45a6c6b6d6cef1c241ff8a324b1894153804a3bf93e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:5GWFTYQJLWILEBJOT3T3TATN2P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sub-Natural Linewidth Single Photons from a Quantum Dot","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Anthony Nickolas Vamivakas, Clemens Matthiesen, Mete Atature","submitted_at":"2011-09-15T17:44:09Z","abstract_excerpt":"The observation of quantum dot resonance fluorescence enabled a new solid-state approach to generating single photons with a bandwidth almost as narrow as the natural linewidth of a quantum dot transition. Here, we operate in the Heitler regime of resonance fluorescence to generate sub-natural linewidth and high-coherence quantum light from a single quantum dot. The measured single-photon bandwidth exhibits a 30-fold reduction with respect to the radiative linewidth of the QD transition and the single photons exhibit coherence properties inherited from the excitation laser. In contrast, intens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3412","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":"2026-05-18T03:50:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"soxf5EHZWqoNxcdCYxTIIaMO9sfhi1/ug0coVUJ+ytVjXoxOlPCEE3zfrc4itmepWM7OESWekC+swqLcYdttCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T17:06:20.016328Z"},"content_sha256":"a48cb72753536bcaea6df06d1b8576e08752078e9b344471721b29883002b4a7","schema_version":"1.0","event_id":"sha256:a48cb72753536bcaea6df06d1b8576e08752078e9b344471721b29883002b4a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5GWFTYQJLWILEBJOT3T3TATN2P/bundle.json","state_url":"https://pith.science/pith/5GWFTYQJLWILEBJOT3T3TATN2P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5GWFTYQJLWILEBJOT3T3TATN2P/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":"2026-05-19T17:06:20Z","links":{"resolver":"https://pith.science/pith/5GWFTYQJLWILEBJOT3T3TATN2P","bundle":"https://pith.science/pith/5GWFTYQJLWILEBJOT3T3TATN2P/bundle.json","state":"https://pith.science/pith/5GWFTYQJLWILEBJOT3T3TATN2P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5GWFTYQJLWILEBJOT3T3TATN2P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:5GWFTYQJLWILEBJOT3T3TATN2P","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":"20296a67a4350acca5c5be257aec18b68b6ab1aa869ef8f79a260833ff9391ef","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-15T17:44:09Z","title_canon_sha256":"36bc9518b90ca7a490cb758325ae75d7c79c27b44d83b1d5246fc0f227829682"},"schema_version":"1.0","source":{"id":"1109.3412","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3412","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3412v1","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3412","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"pith_short_12","alias_value":"5GWFTYQJLWIL","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5GWFTYQJLWILEBJO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5GWFTYQJ","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:a48cb72753536bcaea6df06d1b8576e08752078e9b344471721b29883002b4a7","target":"graph","created_at":"2026-05-18T03:50:37Z","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":"The observation of quantum dot resonance fluorescence enabled a new solid-state approach to generating single photons with a bandwidth almost as narrow as the natural linewidth of a quantum dot transition. Here, we operate in the Heitler regime of resonance fluorescence to generate sub-natural linewidth and high-coherence quantum light from a single quantum dot. The measured single-photon bandwidth exhibits a 30-fold reduction with respect to the radiative linewidth of the QD transition and the single photons exhibit coherence properties inherited from the excitation laser. In contrast, intens","authors_text":"Anthony Nickolas Vamivakas, Clemens Matthiesen, Mete Atature","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-15T17:44:09Z","title":"Sub-Natural Linewidth Single Photons from a Quantum Dot"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3412","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":"sha256:8e74ac0396c965022310a45a6c6b6d6cef1c241ff8a324b1894153804a3bf93e","target":"record","created_at":"2026-05-18T03:50:37Z","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":"20296a67a4350acca5c5be257aec18b68b6ab1aa869ef8f79a260833ff9391ef","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-15T17:44:09Z","title_canon_sha256":"36bc9518b90ca7a490cb758325ae75d7c79c27b44d83b1d5246fc0f227829682"},"schema_version":"1.0","source":{"id":"1109.3412","kind":"arxiv","version":1}},"canonical_sha256":"e9ac59e2095d90b2052e9ee7b9826dd3e4b5b1bf6d876bc09ed8ca9d1bc6c380","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9ac59e2095d90b2052e9ee7b9826dd3e4b5b1bf6d876bc09ed8ca9d1bc6c380","first_computed_at":"2026-05-18T03:50:37.577052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:50:37.577052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6cT/8T2XxtuQOKSW4xTC2PyrWBIaoZ3EKkK9qcJq6kWP+sRKx9kOvvacmlfBza43KjbJFfCE7EZ8NHkxr0y/AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:50:37.577688Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.3412","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e74ac0396c965022310a45a6c6b6d6cef1c241ff8a324b1894153804a3bf93e","sha256:a48cb72753536bcaea6df06d1b8576e08752078e9b344471721b29883002b4a7"],"state_sha256":"43a1d52e6060f8b30f316947ae049cb44b599aa66e40c6c2444fba5f808906ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4X9+XThjU9mnzmII1CqewttBNBek6TEr1XNp7uMqJme2mBJ3aQ7axkTsj6RVg1yJj4BknzysQnENkaT3s4CiDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T17:06:20.018889Z","bundle_sha256":"6907f0eda9779b175467cd84b027a87f855f3518036696d6396378f2f161c01a"}}