{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:3FASGCJFB7GKDXJQXNCNDBI4E4","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":"87a04150165611ddf2f89b69231734351e13cd140ce1dca284db5fd7e9c61fb7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-11T13:03:59Z","title_canon_sha256":"373fb1608d0ac9b5b208d1d97d4d6c376e7dc2b3e253a1c336a04494671651c4"},"schema_version":"1.0","source":{"id":"0907.1964","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.1964","created_at":"2026-05-18T02:13:03Z"},{"alias_kind":"arxiv_version","alias_value":"0907.1964v1","created_at":"2026-05-18T02:13:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.1964","created_at":"2026-05-18T02:13:03Z"},{"alias_kind":"pith_short_12","alias_value":"3FASGCJFB7GK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"3FASGCJFB7GKDXJQ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"3FASGCJF","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:5def148487c602984125d26d6ac0e75814ab642166ea3b43d083eade44651ef6","target":"graph","created_at":"2026-05-18T02:13:03Z","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 consider the measuring procedure that in principle allows to avoid the homodyne detection for the simultaneous selection of both quadrature components in the far-field. The scheme is based on the use of the coherent sources of the non-classical light. The possibilities of the procedure are illustrated on the basis of the use of pixellised sources, where the phase-locked sub-Poissonian lasers or the degenerate optical parametric oscillator generating above threshold are chosen as the pixels. The theory of the pixellised source of the spatio-temporal squeezed light is elaborated as a part of ","authors_text":"C. Fabre, K. Samburskaya, M. Kolobov, N. Treps, T. Golubeva, Yu. Golubev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-11T13:03:59Z","title":"Entanglement measurement of the quadrature components without the homodyne detection in the spatially multi-mode far-field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.1964","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":"sha256:8fb75170f6965386b91cdac84e4c015ffc4d502dbbc75c4eb05940fe4181c9fb","target":"record","created_at":"2026-05-18T02:13:03Z","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":"87a04150165611ddf2f89b69231734351e13cd140ce1dca284db5fd7e9c61fb7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-11T13:03:59Z","title_canon_sha256":"373fb1608d0ac9b5b208d1d97d4d6c376e7dc2b3e253a1c336a04494671651c4"},"schema_version":"1.0","source":{"id":"0907.1964","kind":"arxiv","version":1}},"canonical_sha256":"d9412309250fcca1dd30bb44d1851c2709e01d3d88457701acbde047c1f032e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9412309250fcca1dd30bb44d1851c2709e01d3d88457701acbde047c1f032e1","first_computed_at":"2026-05-18T02:13:03.736010Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:03.736010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wlU/55hLbuIlCQnChgotd2cTbXbysXog8s7bS3mx+uOiBBDv5HS46VSM0hBTcMRGvewQNgeeZ+SaVVMtwu/NBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:03.736619Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.1964","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8fb75170f6965386b91cdac84e4c015ffc4d502dbbc75c4eb05940fe4181c9fb","sha256:5def148487c602984125d26d6ac0e75814ab642166ea3b43d083eade44651ef6"],"state_sha256":"1a200fe85759c1a2b902d17e426ab427918357dcd2131ab0a33b8433fd8a3676"}