{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:4VM43MBMFJYMIF42CUJ5IVFRKZ","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":"87e3c8bdc25c4f1170450528db6d49132458a62c3c8a8767ffdaa9393c52d006","cross_cats_sorted":["cond-mat.soft","hep-ph","hep-th"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2011-12-13T14:15:14Z","title_canon_sha256":"1c0396a0bfe8809a43357fe1c18527ac34751de157cbef2254127b0516be4d13"},"schema_version":"1.0","source":{"id":"1112.2899","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.2899","created_at":"2026-05-18T01:59:10Z"},{"alias_kind":"arxiv_version","alias_value":"1112.2899v1","created_at":"2026-05-18T01:59:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.2899","created_at":"2026-05-18T01:59:10Z"},{"alias_kind":"pith_short_12","alias_value":"4VM43MBMFJYM","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4VM43MBMFJYMIF42","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4VM43MBM","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:6c0eacb7c3120a421ca87ae96823a69a32090aaf067e83e3686624c7a8525509","target":"graph","created_at":"2026-05-18T01:59:10Z","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 study the time evolution of entangled states of a pair of identical atoms, considered in the harmonic approximation, coupled to an environment represented by an infinite set of free oscillators, with the whole system confined within a spherical cavity of radius $R$. Taking the center-of-mass and the relative-position coordinates, and using the dressed-state approach, we present the time evolution of some quantities measuring the entanglement, for both limits of a very large and a small cavity; the chosen examples are simple and illustrate these very distinct behaviors.","authors_text":"A. P. C. Malbouisson, C. A. Linhares, E. G. Figueiredo, J. M. C. Malbouisson","cross_cats":["cond-mat.soft","hep-ph","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2011-12-13T14:15:14Z","title":"Time evolution of entangled biatomic states in a cavity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.2899","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":"sha256:7d9f7dab75af878699ebc458a2bdef038b953190ceed7abe38a6a58f91e0a4f5","target":"record","created_at":"2026-05-18T01:59:10Z","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":"87e3c8bdc25c4f1170450528db6d49132458a62c3c8a8767ffdaa9393c52d006","cross_cats_sorted":["cond-mat.soft","hep-ph","hep-th"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2011-12-13T14:15:14Z","title_canon_sha256":"1c0396a0bfe8809a43357fe1c18527ac34751de157cbef2254127b0516be4d13"},"schema_version":"1.0","source":{"id":"1112.2899","kind":"arxiv","version":1}},"canonical_sha256":"e559cdb02c2a70c4179a1513d454b156629f187cf877f838e4f87f7f6addfadd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e559cdb02c2a70c4179a1513d454b156629f187cf877f838e4f87f7f6addfadd","first_computed_at":"2026-05-18T01:59:10.893624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:10.893624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u0EF1ocnVRKUf2yO/wT3SFxoTE2OpfNggHivbZndlwa2ZYNx/gMaXiJ0jbQpcDIONDuiflJeD9ctuuOW2+owDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:10.894329Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.2899","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d9f7dab75af878699ebc458a2bdef038b953190ceed7abe38a6a58f91e0a4f5","sha256:6c0eacb7c3120a421ca87ae96823a69a32090aaf067e83e3686624c7a8525509"],"state_sha256":"5f20d3388e456e467dc542d80348ec7965fafb6248a1009ee522a83365300db6"}