{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:K26FIRRJWV26A7MWUCRIY3XOHD","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":"d20b42102367d84ead25d6caf6b1f26df05e20edfbe6a1f56856d5a0a387bab7","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-18T15:55:52Z","title_canon_sha256":"dec11f0f2e3fef762177a108248fd08d7095651c4dee6de4c09cd04dab9871d3"},"schema_version":"1.0","source":{"id":"1506.05729","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.05729","created_at":"2026-05-18T01:31:21Z"},{"alias_kind":"arxiv_version","alias_value":"1506.05729v2","created_at":"2026-05-18T01:31:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.05729","created_at":"2026-05-18T01:31:21Z"},{"alias_kind":"pith_short_12","alias_value":"K26FIRRJWV26","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"K26FIRRJWV26A7MW","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"K26FIRRJ","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:1ec6eed4b15fd9e25b69e8a75dda7c16e4f38d7543a61dbe258f970f64664483","target":"graph","created_at":"2026-05-18T01:31:21Z","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 consider the coupling of a qubit in a pure state to an environment in an arbitrary state, and characterize the possibility of qubit-environment entanglement generation during the evolution of the joint system, that leads to pure dephasing of the qubit. We give a simple necessary and sufficient condition on the initial density matrix of the environment together with the properties of the interaction, for appearance of qubit-environment entanglement. Any entanglement created turns out to be detectable by the Peres-Horodecki criterion. Furthermore, we show that for a large family of initial en","authors_text":"Katarzyna Roszak, {\\L}ukasz Cywi\\'nski","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-18T15:55:52Z","title":"Characterization and measurement of qubit-environment entanglement generation during pure dephasing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.05729","kind":"arxiv","version":2},"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:c0f8ec7cecab68af574ebca138d9d9ed543c48fedf3b55f4c2423d27e17389ec","target":"record","created_at":"2026-05-18T01:31:21Z","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":"d20b42102367d84ead25d6caf6b1f26df05e20edfbe6a1f56856d5a0a387bab7","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-18T15:55:52Z","title_canon_sha256":"dec11f0f2e3fef762177a108248fd08d7095651c4dee6de4c09cd04dab9871d3"},"schema_version":"1.0","source":{"id":"1506.05729","kind":"arxiv","version":2}},"canonical_sha256":"56bc544629b575e07d96a0a28c6eee38e79bb9cf72fa185801ca28298aee8e6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56bc544629b575e07d96a0a28c6eee38e79bb9cf72fa185801ca28298aee8e6e","first_computed_at":"2026-05-18T01:31:21.132682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:21.132682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ONUPsHtmuV8VduhBhPeNoDOsGN63jmaBx6unPygtHwpfF+aBwK8Y9jzySH1WIxNKkm/hTFF2ka9BrWOe/oiRCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:21.133166Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.05729","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0f8ec7cecab68af574ebca138d9d9ed543c48fedf3b55f4c2423d27e17389ec","sha256:1ec6eed4b15fd9e25b69e8a75dda7c16e4f38d7543a61dbe258f970f64664483"],"state_sha256":"e21d7d093fd04dff14cbae01f957a792c6c64b4845fe98b3e10d8025a9f7ee9c"}