{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:EYGNF2CI3WKPH7KYHVHOINKTPL","short_pith_number":"pith:EYGNF2CI","schema_version":"1.0","canonical_sha256":"260cd2e848dd94f3fd583d4ee435537afaccb3b8b826fd2a3f0bd83117e14887","source":{"kind":"arxiv","id":"1009.2079","version":2},"attestation_state":"computed","paper":{"title":"Entanglement dynamics via coherent-state propagators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. D. Ribeiro, R. M. Angelo","submitted_at":"2010-09-10T19:22:05Z","abstract_excerpt":"The dynamical generation of entanglement in closed bipartite systems is investigated in the semiclassical regime. We consider a model of two particles, initially prepared in a product of coherent states, evolving in time according to a generic Hamiltonian, and derive a formula for the linear entropy of the reduced density matrix using the semiclassical propagator in the coherent-state representation. The formula is explicitly written in terms of quantities that define the stability of classical trajectories of the underlying classical system. The formalism is then applied to the problem of two"},"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":"1009.2079","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-10T19:22:05Z","cross_cats_sorted":[],"title_canon_sha256":"38f5246a1220e7bcf0e5a4375268119b16cccf6804147128b94ff6177c260148","abstract_canon_sha256":"23b09dc14aa23274476bcddc9f43e62f86b51056e99e25eb98d11fa6cb1d308f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:31.850489Z","signature_b64":"Qb0wWg0vHMz4GDJI4Wue860Nh86PiN1SFVITgdEJ7GL3ccu/X5GNo1bmMHcz32rgFjB8Gl3fy6u2sidnUj3sAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"260cd2e848dd94f3fd583d4ee435537afaccb3b8b826fd2a3f0bd83117e14887","last_reissued_at":"2026-05-18T02:05:31.849734Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:31.849734Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Entanglement dynamics via coherent-state propagators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. D. Ribeiro, R. M. Angelo","submitted_at":"2010-09-10T19:22:05Z","abstract_excerpt":"The dynamical generation of entanglement in closed bipartite systems is investigated in the semiclassical regime. We consider a model of two particles, initially prepared in a product of coherent states, evolving in time according to a generic Hamiltonian, and derive a formula for the linear entropy of the reduced density matrix using the semiclassical propagator in the coherent-state representation. The formula is explicitly written in terms of quantities that define the stability of classical trajectories of the underlying classical system. The formalism is then applied to the problem of two"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2079","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":"1009.2079","created_at":"2026-05-18T02:05:31.849848+00:00"},{"alias_kind":"arxiv_version","alias_value":"1009.2079v2","created_at":"2026-05-18T02:05:31.849848+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2079","created_at":"2026-05-18T02:05:31.849848+00:00"},{"alias_kind":"pith_short_12","alias_value":"EYGNF2CI3WKP","created_at":"2026-05-18T12:26:06.534383+00:00"},{"alias_kind":"pith_short_16","alias_value":"EYGNF2CI3WKPH7KY","created_at":"2026-05-18T12:26:06.534383+00:00"},{"alias_kind":"pith_short_8","alias_value":"EYGNF2CI","created_at":"2026-05-18T12:26:06.534383+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/EYGNF2CI3WKPH7KYHVHOINKTPL","json":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL.json","graph_json":"https://pith.science/api/pith-number/EYGNF2CI3WKPH7KYHVHOINKTPL/graph.json","events_json":"https://pith.science/api/pith-number/EYGNF2CI3WKPH7KYHVHOINKTPL/events.json","paper":"https://pith.science/paper/EYGNF2CI"},"agent_actions":{"view_html":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL","download_json":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL.json","view_paper":"https://pith.science/paper/EYGNF2CI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1009.2079&json=true","fetch_graph":"https://pith.science/api/pith-number/EYGNF2CI3WKPH7KYHVHOINKTPL/graph.json","fetch_events":"https://pith.science/api/pith-number/EYGNF2CI3WKPH7KYHVHOINKTPL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL/action/storage_attestation","attest_author":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL/action/author_attestation","sign_citation":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL/action/citation_signature","submit_replication":"https://pith.science/pith/EYGNF2CI3WKPH7KYHVHOINKTPL/action/replication_record"}},"created_at":"2026-05-18T02:05:31.849848+00:00","updated_at":"2026-05-18T02:05:31.849848+00:00"}