{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:KF47WSWONARS3FUGHKJKOXUTWZ","short_pith_number":"pith:KF47WSWO","schema_version":"1.0","canonical_sha256":"5179fb4ace68232d96863a92a75e93b6696ae297e4da54575a79ac9de9740350","source":{"kind":"arxiv","id":"1209.1536","version":1},"attestation_state":"computed","paper":{"title":"Negativity and quantum discord in Davies environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"J. Dajka, J. Luczka, M. Mierzejewski, P. Hanggi, R. Blattmann","submitted_at":"2012-09-07T13:52:54Z","abstract_excerpt":"We investigate the time evolution of negativity and quantum discord for a pair of non-interacting qubits with one being weakly coupled to a decohering Davies--type Markovian environment. At initial time of preparation, the qubits are prepared in one of the maximally entangled pure Bell states. In the limiting case of pure decoherence (i.e. pure dephasing), both, the quantum discord and negativity decay to zero in the long time limit. In presence of a manifest dissipative dynamics, the entanglement negativity undergoes a sudden death at finite time while the quantum discord relaxes continuously"},"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":"1209.1536","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-09-07T13:52:54Z","cross_cats_sorted":[],"title_canon_sha256":"6a072c01b4fdf0eae336bbfe33c5f63ea0c464482e52c358bd8dae7fe79fdb37","abstract_canon_sha256":"083d96a3e93463c3f6bced7f831a3102b17906b0f309fd11225e5276ddf540d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:38.695361Z","signature_b64":"/QXYJY2yMaQy+9eS7/BnunAsMkxrDTRnQXWAMGRp02EbBg3xQx8cIY7HoPejW5YbbuTbbcOPmQe/8LG+Z6TRBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5179fb4ace68232d96863a92a75e93b6696ae297e4da54575a79ac9de9740350","last_reissued_at":"2026-05-18T01:54:38.694716Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:38.694716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Negativity and quantum discord in Davies environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"J. Dajka, J. Luczka, M. Mierzejewski, P. Hanggi, R. Blattmann","submitted_at":"2012-09-07T13:52:54Z","abstract_excerpt":"We investigate the time evolution of negativity and quantum discord for a pair of non-interacting qubits with one being weakly coupled to a decohering Davies--type Markovian environment. At initial time of preparation, the qubits are prepared in one of the maximally entangled pure Bell states. In the limiting case of pure decoherence (i.e. pure dephasing), both, the quantum discord and negativity decay to zero in the long time limit. In presence of a manifest dissipative dynamics, the entanglement negativity undergoes a sudden death at finite time while the quantum discord relaxes continuously"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.1536","kind":"arxiv","version":1},"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":"1209.1536","created_at":"2026-05-18T01:54:38.694814+00:00"},{"alias_kind":"arxiv_version","alias_value":"1209.1536v1","created_at":"2026-05-18T01:54:38.694814+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.1536","created_at":"2026-05-18T01:54:38.694814+00:00"},{"alias_kind":"pith_short_12","alias_value":"KF47WSWONARS","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_16","alias_value":"KF47WSWONARS3FUG","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_8","alias_value":"KF47WSWO","created_at":"2026-05-18T12:27:11.947152+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/KF47WSWONARS3FUGHKJKOXUTWZ","json":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ.json","graph_json":"https://pith.science/api/pith-number/KF47WSWONARS3FUGHKJKOXUTWZ/graph.json","events_json":"https://pith.science/api/pith-number/KF47WSWONARS3FUGHKJKOXUTWZ/events.json","paper":"https://pith.science/paper/KF47WSWO"},"agent_actions":{"view_html":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ","download_json":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ.json","view_paper":"https://pith.science/paper/KF47WSWO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1209.1536&json=true","fetch_graph":"https://pith.science/api/pith-number/KF47WSWONARS3FUGHKJKOXUTWZ/graph.json","fetch_events":"https://pith.science/api/pith-number/KF47WSWONARS3FUGHKJKOXUTWZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ/action/storage_attestation","attest_author":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ/action/author_attestation","sign_citation":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ/action/citation_signature","submit_replication":"https://pith.science/pith/KF47WSWONARS3FUGHKJKOXUTWZ/action/replication_record"}},"created_at":"2026-05-18T01:54:38.694814+00:00","updated_at":"2026-05-18T01:54:38.694814+00:00"}