{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6QUDIGYL4B7FXM4CPQMQWAMUBC","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":"7986c8d1fb5d2a31d89552a7742f99eb643a4e869a3244c077658b838582f891","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-03-06T07:47:02Z","title_canon_sha256":"76cedb9fe2de9c9d8339416303674cfac8a35ecee0d14209b728e59d35eee735"},"schema_version":"1.0","source":{"id":"1803.02048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.02048","created_at":"2026-05-18T00:21:55Z"},{"alias_kind":"arxiv_version","alias_value":"1803.02048v1","created_at":"2026-05-18T00:21:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.02048","created_at":"2026-05-18T00:21:55Z"},{"alias_kind":"pith_short_12","alias_value":"6QUDIGYL4B7F","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6QUDIGYL4B7FXM4C","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6QUDIGYL","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:bd0b12909b9d9b7d6329ed7a33cb597632780f2538640b631cb9343e64642e73","target":"graph","created_at":"2026-05-18T00:21:55Z","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":"The atom-photon entanglement using the Laguerre-Gaussian beams is studied in the closed-loop three-level $V$-type quantum systems. We consider two schemes with degenerated and non-degenerated upper levels: in the first, the effect of the quantum interference due to the spontaneous emission is taken into account and in the second, a microwave plane wave is applied to the upper levels transition for non-degenerated scheme. It is shown that the atom-photon entanglement in both schemes depends on the intensity profile as well as the orbital angular momentum (OAM) of applied fields so that the vari","authors_text":"Mohammad Mahmoudi, Rahim Amiri, Zahra Amini Sabegh","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-03-06T07:47:02Z","title":"Spatially dependent atom-photon entanglement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.02048","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":"sha256:402bfb2a5e3a9a0baf83cbdb058e0f6c13f5784e08ba3506d59b77e639bb5fb9","target":"record","created_at":"2026-05-18T00:21:55Z","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":"7986c8d1fb5d2a31d89552a7742f99eb643a4e869a3244c077658b838582f891","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-03-06T07:47:02Z","title_canon_sha256":"76cedb9fe2de9c9d8339416303674cfac8a35ecee0d14209b728e59d35eee735"},"schema_version":"1.0","source":{"id":"1803.02048","kind":"arxiv","version":1}},"canonical_sha256":"f428341b0be07e5bb3827c190b019408a478d78bb396c5cc1497b2a568e18222","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f428341b0be07e5bb3827c190b019408a478d78bb396c5cc1497b2a568e18222","first_computed_at":"2026-05-18T00:21:55.959417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:55.959417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WwNUK29NEqbs8ZeUHf0mGOMeT3VwA5XL2zHikDxpyVzf8bNn/L5ASn42JiGVOHzBJmhav/zS7/3Uu3LsZweVBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:55.960044Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.02048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:402bfb2a5e3a9a0baf83cbdb058e0f6c13f5784e08ba3506d59b77e639bb5fb9","sha256:bd0b12909b9d9b7d6329ed7a33cb597632780f2538640b631cb9343e64642e73"],"state_sha256":"6fbd3ba4351f0be2d94f9819324701255565c4c6b615f0824899b06963a43fe6"}