{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:7FM4FPQ7PK2N7ZCZUKSUJLDYAL","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":"e482db77e244ba6b4c15877e8a8b7cb2e11d4e9a454c1c011de52a0e6cedd6a3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-06-27T10:52:55Z","title_canon_sha256":"6ea8740d6f7ac112c50331b1f1b4e864fe78bbe9ae9bcb5d82dbc0ab26340b3e"},"schema_version":"1.0","source":{"id":"1806.10407","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.10407","created_at":"2026-05-17T23:54:02Z"},{"alias_kind":"arxiv_version","alias_value":"1806.10407v2","created_at":"2026-05-17T23:54:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10407","created_at":"2026-05-17T23:54:02Z"},{"alias_kind":"pith_short_12","alias_value":"7FM4FPQ7PK2N","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7FM4FPQ7PK2N7ZCZ","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7FM4FPQ7","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:f21512406d7ee198287eff171657e2302db1804ea1478dc5efd24e8b48584865","target":"graph","created_at":"2026-05-17T23:54:02Z","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":"The complex interactions between orbital angular momentum (OAM) light and atoms are particularly intriguing in the areas of quantum optics and quantum information science. Building a versatile high-dimensional quantum network needs broad spiral-bandwidth for preparing higher-quanta OAM mode and resolving the bandwidth mismatch in spatial space and etc. Here, we experimentally demonstrate a broad spiral-bandwidth quantum interface between photon and memory. Through twisted fields of the writing and reading, the correlated OAM distribution between photon and memory is significantly broadened. Th","authors_text":"Bao-Sen Shi, Dong-Sheng Ding, Guang-Can Guo, Ming-Xin Dong, Shuai Shi, Wei Zhang, Yi-chen Yu, Ying-hao Ye","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-06-27T10:52:55Z","title":"Broad Spiral-Bandwidth of Orbital Angular Momentum Interface between Photon and Memory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10407","kind":"arxiv","version":2},"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:b39a66672bbf10f169ca995405e98cab609107882232ec5af6b61f76775363e1","target":"record","created_at":"2026-05-17T23:54:02Z","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":"e482db77e244ba6b4c15877e8a8b7cb2e11d4e9a454c1c011de52a0e6cedd6a3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-06-27T10:52:55Z","title_canon_sha256":"6ea8740d6f7ac112c50331b1f1b4e864fe78bbe9ae9bcb5d82dbc0ab26340b3e"},"schema_version":"1.0","source":{"id":"1806.10407","kind":"arxiv","version":2}},"canonical_sha256":"f959c2be1f7ab4dfe459a2a544ac7802e1704a6a4c6019bc740b139127e2f885","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f959c2be1f7ab4dfe459a2a544ac7802e1704a6a4c6019bc740b139127e2f885","first_computed_at":"2026-05-17T23:54:02.830754Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:02.830754Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YJ0ulvBOKMXLusKTAhDG4rkQgGxe/r7/TzRY6bdOjyuU0aINkcbkTEvEHuAmsalJGC6ip/+/7/jwKRiWAmsvCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:02.831217Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.10407","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b39a66672bbf10f169ca995405e98cab609107882232ec5af6b61f76775363e1","sha256:f21512406d7ee198287eff171657e2302db1804ea1478dc5efd24e8b48584865"],"state_sha256":"03c877add3ebbaa21e5fb08be90e6214b52e4c4da43c166babac471f3e364311"}