{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:KRDSXIIL4POVCQPQQNRYKENMQQ","short_pith_number":"pith:KRDSXIIL","schema_version":"1.0","canonical_sha256":"54472ba10be3dd5141f083638511ac841246d8383dd81a3727ba6e021b5d7a3d","source":{"kind":"arxiv","id":"1105.4814","version":2},"attestation_state":"computed","paper":{"title":"Storage and retrieval of continuous-variable polarization-entangled cluster states in atomic ensembles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chun-Hua Yuan, Da-Chuang Li, Weiping Zhang, Zhuo-Liang Cao","submitted_at":"2011-05-24T15:59:48Z","abstract_excerpt":"We present a proposal for storing and retrieving a continuous-variable quadripartite polarization-entangled cluster state, using macroscopic atomic ensembles in a magnetic field. The Larmor precession of the atomic spins leads to a symmetry between the atomic canonical operators. In this scheme, each of the four spatially separated pulses passes twice through the respective ensemble in order to map the polarization-entangled cluster state onto the long-lived atomic ensembles. The stored state can then be retrieved by another four read-out pulses, each crossing the respective ensemble twice. By"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1105.4814","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-24T15:59:48Z","cross_cats_sorted":[],"title_canon_sha256":"9c896b7039ffc7a276e21c192bc6da988ac8d15186a93146440a43ed713c4680","abstract_canon_sha256":"f5c615c6bdd7cf9795da6dadd8d9548c0c2739b4c1c68c1ec606339d36fb0e09"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:51.606511Z","signature_b64":"um+AUBm6dAz8FBcvzSkF8GwzJnafeicDFE2XNHRnrQEqmPwdREVIELH1kINQn8q1llfXedgVbTN4iMcuKejJBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54472ba10be3dd5141f083638511ac841246d8383dd81a3727ba6e021b5d7a3d","last_reissued_at":"2026-05-18T02:01:51.605754Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:51.605754Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Storage and retrieval of continuous-variable polarization-entangled cluster states in atomic ensembles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chun-Hua Yuan, Da-Chuang Li, Weiping Zhang, Zhuo-Liang Cao","submitted_at":"2011-05-24T15:59:48Z","abstract_excerpt":"We present a proposal for storing and retrieving a continuous-variable quadripartite polarization-entangled cluster state, using macroscopic atomic ensembles in a magnetic field. The Larmor precession of the atomic spins leads to a symmetry between the atomic canonical operators. In this scheme, each of the four spatially separated pulses passes twice through the respective ensemble in order to map the polarization-entangled cluster state onto the long-lived atomic ensembles. The stored state can then be retrieved by another four read-out pulses, each crossing the respective ensemble twice. By"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4814","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1105.4814","created_at":"2026-05-18T02:01:51.605867+00:00"},{"alias_kind":"arxiv_version","alias_value":"1105.4814v2","created_at":"2026-05-18T02:01:51.605867+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4814","created_at":"2026-05-18T02:01:51.605867+00:00"},{"alias_kind":"pith_short_12","alias_value":"KRDSXIIL4POV","created_at":"2026-05-18T12:26:34.985390+00:00"},{"alias_kind":"pith_short_16","alias_value":"KRDSXIIL4POVCQPQ","created_at":"2026-05-18T12:26:34.985390+00:00"},{"alias_kind":"pith_short_8","alias_value":"KRDSXIIL","created_at":"2026-05-18T12:26:34.985390+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ","json":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ.json","graph_json":"https://pith.science/api/pith-number/KRDSXIIL4POVCQPQQNRYKENMQQ/graph.json","events_json":"https://pith.science/api/pith-number/KRDSXIIL4POVCQPQQNRYKENMQQ/events.json","paper":"https://pith.science/paper/KRDSXIIL"},"agent_actions":{"view_html":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ","download_json":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ.json","view_paper":"https://pith.science/paper/KRDSXIIL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1105.4814&json=true","fetch_graph":"https://pith.science/api/pith-number/KRDSXIIL4POVCQPQQNRYKENMQQ/graph.json","fetch_events":"https://pith.science/api/pith-number/KRDSXIIL4POVCQPQQNRYKENMQQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ/action/storage_attestation","attest_author":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ/action/author_attestation","sign_citation":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ/action/citation_signature","submit_replication":"https://pith.science/pith/KRDSXIIL4POVCQPQQNRYKENMQQ/action/replication_record"}},"created_at":"2026-05-18T02:01:51.605867+00:00","updated_at":"2026-05-18T02:01:51.605867+00:00"}