{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OKTZHCF53RWR62JTDTKUXJZONW","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":"7bd509a17ae71cbd019e6efea3d69c8b1b1a7e59040b4326954006694a50fa81","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-01-05T08:45:11Z","title_canon_sha256":"d50a4040d4910e4328860f3be298d12c5161f126c8237367ce2006ce004bfe9e"},"schema_version":"1.0","source":{"id":"1801.01672","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.01672","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"arxiv_version","alias_value":"1801.01672v3","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.01672","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"pith_short_12","alias_value":"OKTZHCF53RWR","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OKTZHCF53RWR62JT","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OKTZHCF5","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:799816c41d743dd9b8a9a4182a140072ba4067e75bf6620c1ccfa597e5a8b505","target":"graph","created_at":"2026-05-18T00:04:30Z","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":"High-quality sources of single photons are of paramount importance for quantum communication, sensing and metrology. To these ends, resonantly excited two-level systems based on self-assembled quantum dots have recently generated widespread interest. Nevertheless, we have recently shown that for resonantly excited two-level systems, emission of a photon during the presence of the excitation laser pulse and subsequent re-excitation results in a degradation of the obtainable single-photon purity. Here, we demonstrate that generating single photons from self-assembled quantum dots with a scheme b","authors_text":"Daniil Lukin, Jakob Wierzbowski, Jelena Vu\\v{c}kovi\\'c, Jonathan J. Finley, Kai M\\\"uller, Kevin A. Fischer, Lukas Hanschke, Rahul Trivedi, Shuo Sun, Stefan Appel","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-01-05T08:45:11Z","title":"Quantum dot single photon sources with ultra-low multi-photon probability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.01672","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":"sha256:17897721ecf83c486611259cb6ba5ed2b49a922616770bb18b2b842071365b14","target":"record","created_at":"2026-05-18T00:04:30Z","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":"7bd509a17ae71cbd019e6efea3d69c8b1b1a7e59040b4326954006694a50fa81","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-01-05T08:45:11Z","title_canon_sha256":"d50a4040d4910e4328860f3be298d12c5161f126c8237367ce2006ce004bfe9e"},"schema_version":"1.0","source":{"id":"1801.01672","kind":"arxiv","version":3}},"canonical_sha256":"72a79388bddc6d1f69331cd54ba72e6db41512f56db13418ce7b4cd9e22803dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72a79388bddc6d1f69331cd54ba72e6db41512f56db13418ce7b4cd9e22803dd","first_computed_at":"2026-05-18T00:04:30.416665Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:30.416665Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6W7xlARmhOh29YH/0KOLHm5KR3NfuiizTPsLxguE/+PSBIDs/sTazXdoFAPOav/C4+d5jr24wlqe+vDp7DDEBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:30.417155Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.01672","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17897721ecf83c486611259cb6ba5ed2b49a922616770bb18b2b842071365b14","sha256:799816c41d743dd9b8a9a4182a140072ba4067e75bf6620c1ccfa597e5a8b505"],"state_sha256":"9873028cc63baa9dbf042df7356d440d15c9147de08150418a25d72fad5da0d6"}