{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:V3V5ODYFMXGDZYXFGLBQA2W7WL","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":"0f39fb118c811f25bcd1de95d4d38ea5d49b4780a24664b920cdb1188e9135b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T22:01:08Z","title_canon_sha256":"c1c80d77fe2c948d5167d97ffa1a3cfb78dd7d5fa8c8427e304f40db53b6d944"},"schema_version":"1.0","source":{"id":"1009.5710","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5710","created_at":"2026-05-18T04:00:01Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5710v4","created_at":"2026-05-18T04:00:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5710","created_at":"2026-05-18T04:00:01Z"},{"alias_kind":"pith_short_12","alias_value":"V3V5ODYFMXGD","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"V3V5ODYFMXGDZYXF","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"V3V5ODYF","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:88fd211215b04663e0e9876c0c675b84167bb24cd85e8e7b7f85fa3d4f92b4ec","target":"graph","created_at":"2026-05-18T04:00:01Z","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":"Revivals of quantum correlations have often been explained in terms of back-action on quantum systems by their quantum environment(s). Here we consider a system of two independently evolving qubits, each locally interacting with a classical random external field. The environments of the qubits are also independent, and there is no back-action on the qubits. Nevertheless, entanglement, quantum discord and classical correlations between the two qubits may revive in this model. We explain the revivals in terms of correlations in a classical-quantum state of the environments and the qubits. Althou","authors_text":"Bruno Bellomo, Erika Andersson, Giuseppe Compagno, Rosario Lo Franco","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T22:01:08Z","title":"Revival of quantum correlations without system-environment back-action"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5710","kind":"arxiv","version":4},"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":"sha256:481e27d00aa52d243e032a68c5b182c0b0d1fe493f60bbfb3816ff5772cf8bc5","target":"record","created_at":"2026-05-18T04:00:01Z","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":"0f39fb118c811f25bcd1de95d4d38ea5d49b4780a24664b920cdb1188e9135b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T22:01:08Z","title_canon_sha256":"c1c80d77fe2c948d5167d97ffa1a3cfb78dd7d5fa8c8427e304f40db53b6d944"},"schema_version":"1.0","source":{"id":"1009.5710","kind":"arxiv","version":4}},"canonical_sha256":"aeebd70f0565cc3ce2e532c3006adfb2faeddee1f860d4d38c159b448bcd1e80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aeebd70f0565cc3ce2e532c3006adfb2faeddee1f860d4d38c159b448bcd1e80","first_computed_at":"2026-05-18T04:00:01.360016Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:01.360016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q9bw4TPKeuYiY9j/9DLW8zKTG29ZaIvmZVu0r/JnQwU49jPL69HF5zzJgP3oc+sdBNg5MTYBDuTbejIt2rNVBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:01.360635Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.5710","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:481e27d00aa52d243e032a68c5b182c0b0d1fe493f60bbfb3816ff5772cf8bc5","sha256:88fd211215b04663e0e9876c0c675b84167bb24cd85e8e7b7f85fa3d4f92b4ec"],"state_sha256":"9da7c2c4e328ba5de410bd6156695b8685931f858894432358bc487fdb9cabba"}