{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:V2FKXVJ5TWJ3UVPVOJJMTJWHZJ","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":"1efbed35dcd176948fcc11a39bcc70aab9d6de0f6cf4763752b79feb1f63e9eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-02-01T13:03:08Z","title_canon_sha256":"238b044174940dc2146c5237960323b5def52dca7541cea8b4bb3079f8c4d590"},"schema_version":"1.0","source":{"id":"1202.0164","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0164","created_at":"2026-05-18T04:03:19Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0164v1","created_at":"2026-05-18T04:03:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0164","created_at":"2026-05-18T04:03:19Z"},{"alias_kind":"pith_short_12","alias_value":"V2FKXVJ5TWJ3","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"V2FKXVJ5TWJ3UVPV","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"V2FKXVJ5","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:cb6e0ab6b91a2cd48d2933942e9630e17a33fc23861fbaadb56810408fb839bb","target":"graph","created_at":"2026-05-18T04:03:19Z","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 present a technique based on multi-photon detection which leads to a strong focussing of photons scattered by independent single photon emitters. For N single photon sources it is shown that if m - 1 photons are detected in a particular direction (with m \\leq N) the probability to detect the m-th photon in the same direction can be as high as 100%. This measurement induced focussing effect is already clearly visible for m>2.","authors_text":"G. S. Agarwal, J. von Zanthier, R. Wiegner, S. Oppel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-02-01T13:03:08Z","title":"Measurement induced focussing of radiation from independent single photon sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0164","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:fc3b9d11f8945d0faef58ff0685dc9e194f6ad433f5a542ab44d4cbedad5ce1c","target":"record","created_at":"2026-05-18T04:03:19Z","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":"1efbed35dcd176948fcc11a39bcc70aab9d6de0f6cf4763752b79feb1f63e9eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-02-01T13:03:08Z","title_canon_sha256":"238b044174940dc2146c5237960323b5def52dca7541cea8b4bb3079f8c4d590"},"schema_version":"1.0","source":{"id":"1202.0164","kind":"arxiv","version":1}},"canonical_sha256":"ae8aabd53d9d93ba55f57252c9a6c7ca523395228845c381653a60e9c3cbe776","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae8aabd53d9d93ba55f57252c9a6c7ca523395228845c381653a60e9c3cbe776","first_computed_at":"2026-05-18T04:03:19.969648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:19.969648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XH0xlQ1IWjOtQYZdjkZCooLSIBaYb+15y+AsAXL/eL91sTP/fZ23288CX2UQHmh+c1CEtM5cx9T21JuDxaCkDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:19.970481Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.0164","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc3b9d11f8945d0faef58ff0685dc9e194f6ad433f5a542ab44d4cbedad5ce1c","sha256:cb6e0ab6b91a2cd48d2933942e9630e17a33fc23861fbaadb56810408fb839bb"],"state_sha256":"2f7539cd285eb882dbfc18a7dc988b1220addf255b07b757644cd6be1891ecaf"}