{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CFUTB32VHK7POFNPVRLT5B7XBM","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":"0f2d1871472f2d0c0dc43dc548100ec0c5613775952a6e2ebe7017dfdab2f643","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-11T20:55:42Z","title_canon_sha256":"257ad4b974771e8e2051d127465dadcc26c8f6d676751f9b9e66e74c2f3f1888"},"schema_version":"1.0","source":{"id":"1309.2968","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.2968","created_at":"2026-05-18T03:04:22Z"},{"alias_kind":"arxiv_version","alias_value":"1309.2968v2","created_at":"2026-05-18T03:04:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.2968","created_at":"2026-05-18T03:04:22Z"},{"alias_kind":"pith_short_12","alias_value":"CFUTB32VHK7P","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CFUTB32VHK7POFNP","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CFUTB32V","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:355a031fa5edbd18b56a04beb886ed86d29090ca6b6717c9e48b42ed82ebb28b","target":"graph","created_at":"2026-05-18T03:04:22Z","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 propose a scheme for distillation of free bipartite entanglement from bipartite bound-entangled states. The crucial element of our scheme is an ancillary system that is coupled to the initial bound-entangled state via appropriate weak measurements. We show that in this protocol free entanglement can be always generated with nonzero probability by using a single copy of the bound-entangled state. We also derive a lower bound on the entanglement cost of the protocol, and conclude that, on average, applying weaker measurements results in relatively higher values of free entanglement as well as","authors_text":"A. T. Rezakhani, S. Baghbanzadeh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-11T20:55:42Z","title":"Distillation of free entanglement from bound entangled states using weak measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2968","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":"sha256:7d51d7bfbc5b3f5a42787a7ca7d2dee878d7f30d2c8c552429126e223f542fe1","target":"record","created_at":"2026-05-18T03:04:22Z","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":"0f2d1871472f2d0c0dc43dc548100ec0c5613775952a6e2ebe7017dfdab2f643","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-11T20:55:42Z","title_canon_sha256":"257ad4b974771e8e2051d127465dadcc26c8f6d676751f9b9e66e74c2f3f1888"},"schema_version":"1.0","source":{"id":"1309.2968","kind":"arxiv","version":2}},"canonical_sha256":"116930ef553abef715afac573e87f70b35fa612b4de813ed5cbca628c5a91983","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"116930ef553abef715afac573e87f70b35fa612b4de813ed5cbca628c5a91983","first_computed_at":"2026-05-18T03:04:22.329873Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:04:22.329873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uc+uYpMgbTkbf45BYEvPlxFDsrejdDICw4p4PM6ejY1LAiODEuuZSRYAqmV3MZYEfD7fNjQaz8unQO/6Z9ccDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:04:22.330295Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.2968","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d51d7bfbc5b3f5a42787a7ca7d2dee878d7f30d2c8c552429126e223f542fe1","sha256:355a031fa5edbd18b56a04beb886ed86d29090ca6b6717c9e48b42ed82ebb28b"],"state_sha256":"305dbdd58f290a7a519b6cefdbd2bcd7ab35209c1c4f59f74f4d2336ff671a53"}