{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MZ6GWWLJPRUQL2U54NX2BXKK3S","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":"f9f26e31d66414e6419a956adbe44f205e3b0247e60c77a5112cb1321b395a03","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-31T09:03:24Z","title_canon_sha256":"3efb58b4fa2951f1282579092e1fb28fdfdf46873e87f3ae70f524807577dd12"},"schema_version":"1.0","source":{"id":"1101.5877","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.5877","created_at":"2026-05-18T02:03:20Z"},{"alias_kind":"arxiv_version","alias_value":"1101.5877v1","created_at":"2026-05-18T02:03:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.5877","created_at":"2026-05-18T02:03:20Z"},{"alias_kind":"pith_short_12","alias_value":"MZ6GWWLJPRUQ","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"MZ6GWWLJPRUQL2U5","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"MZ6GWWLJ","created_at":"2026-05-18T12:26:37Z"}],"graph_snapshots":[{"event_id":"sha256:0bea01157cbc04c180bc07ffc0caa3f127c3f88873a01c29af95404c841f61ed","target":"graph","created_at":"2026-05-18T02:03:20Z","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 have realized a compact system to efficiently couple the fluorescent light emitted by a single trapped ion to two opposing optical fibers. The fibers are tightly integrated in the center electrodes of a miniature endcap trap. They capture light from the ion with a numerical aperture of 0.34 each, corresponding to 6% of the solid angle in total. The high collection efficiency and high signal-to-background ratio make the setup an ideal quantum light source. We have observed strong antibunching of the photons emitted from the two fibers. The system has a range of applications from single-ion s","authors_text":"Alex Wilson, Anders Mortensen, Andrew Riley-Watson, Daniel R. Crick, Elisabeth Brama, Fedja Orucevic, Hiroki Takahashi, Matthias Keller, Nicolas Seymour-Smith, Peter Blythe, Wolfgang Lange","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-31T09:03:24Z","title":"Fiber-coupled single ion as an efficient quantum light source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.5877","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:e15897df4d348e6a184a431bc7e2f88cf5007f1b34785dfbe38125b998fef958","target":"record","created_at":"2026-05-18T02:03:20Z","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":"f9f26e31d66414e6419a956adbe44f205e3b0247e60c77a5112cb1321b395a03","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-31T09:03:24Z","title_canon_sha256":"3efb58b4fa2951f1282579092e1fb28fdfdf46873e87f3ae70f524807577dd12"},"schema_version":"1.0","source":{"id":"1101.5877","kind":"arxiv","version":1}},"canonical_sha256":"667c6b59697c6905ea9de36fa0dd4adc9c87e64297e120c8bcce577c3ca0ea80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"667c6b59697c6905ea9de36fa0dd4adc9c87e64297e120c8bcce577c3ca0ea80","first_computed_at":"2026-05-18T02:03:20.212167Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:20.212167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pSPsWaW4L+dTcA3uhxgT7vl73HoxLACbnaaoDacCFgMg5OMr1SVnO1ZaDGX2snab/zgESKIXSqqyE7UNvBwOAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:20.212835Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.5877","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e15897df4d348e6a184a431bc7e2f88cf5007f1b34785dfbe38125b998fef958","sha256:0bea01157cbc04c180bc07ffc0caa3f127c3f88873a01c29af95404c841f61ed"],"state_sha256":"c99e605dc365bd505b522aafe67678cea49101f25e8409a4808173191691c7d7"}