{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:JIMSHJWSQGJAN4T6BSRF44OTQL","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":"d7fc55ea310bb230b0083b0364c60adef5701aa8eaa46d2e2441c9fbb314349d","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-16T18:25:55Z","title_canon_sha256":"8424562ffd978f3a98d23defe6754f5ffc1dbfa199b5eef2ebdb1c0e7f7f75c2"},"schema_version":"1.0","source":{"id":"1410.4524","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.4524","created_at":"2026-05-18T02:39:55Z"},{"alias_kind":"arxiv_version","alias_value":"1410.4524v1","created_at":"2026-05-18T02:39:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.4524","created_at":"2026-05-18T02:39:55Z"},{"alias_kind":"pith_short_12","alias_value":"JIMSHJWSQGJA","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"JIMSHJWSQGJAN4T6","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"JIMSHJWS","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:7551a2123f593d8947bb2d97d48b97724d202c928ee6db72a1e7c66fc08d3672","target":"graph","created_at":"2026-05-18T02:39:55Z","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":"Maximizing the information transmission rate through quantum channels is essential for practical implementation of quantum communication. Time-division multiplexing is an approach for which the ultimate rate requires the ability to manipulate and detect single photons on ultrafast timescales while preserving their quantum correlations. Here we demonstrate the demultiplexing of a train of pulsed single photons using time-to-frequency conversion while preserving their polarization entanglement with a partner photon. Our technique converts a pulse train with 2.69 ps spacing to a frequency comb wi","authors_text":"John M. Donohue, Jonathan Lavoie, Kevin J. Resch","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-16T18:25:55Z","title":"Ultrafast time-division demultiplexing of polarization-entangled photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.4524","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:aed8741045fa0c3d4bd7b3698e67d18d25c74a0fa15fb5c8dfbf200e2be2d2d5","target":"record","created_at":"2026-05-18T02:39:55Z","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":"d7fc55ea310bb230b0083b0364c60adef5701aa8eaa46d2e2441c9fbb314349d","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-16T18:25:55Z","title_canon_sha256":"8424562ffd978f3a98d23defe6754f5ffc1dbfa199b5eef2ebdb1c0e7f7f75c2"},"schema_version":"1.0","source":{"id":"1410.4524","kind":"arxiv","version":1}},"canonical_sha256":"4a1923a6d2819206f27e0ca25e71d382da81901971080bef9f956040e164643e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a1923a6d2819206f27e0ca25e71d382da81901971080bef9f956040e164643e","first_computed_at":"2026-05-18T02:39:55.975946Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:55.975946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LyqtmeGb9sa/sJpk6sg4gBYsY6vjd9p5Lgjjr2NCspmDS1x5Hb78xUPagWPdZy4v9yuqJZRKjemBUI/3ugaWAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:55.976369Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.4524","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aed8741045fa0c3d4bd7b3698e67d18d25c74a0fa15fb5c8dfbf200e2be2d2d5","sha256:7551a2123f593d8947bb2d97d48b97724d202c928ee6db72a1e7c66fc08d3672"],"state_sha256":"40f0936824748ce5e5e7b64a7c14cbac4e207a08147be23d6625922a20bfcf29"}