{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FGMT7SHV57E4TCQZ4B6YJJZEEX","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":"b72bc57b45da7e9f1f2e7412b8f4d50f50b5b4253b0e0efaa77ae6a17c787c85","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-14T06:09:08Z","title_canon_sha256":"9a2445e10dd2659ba9cfb99bf8f0d068037fe28ba297252764de1bfb7072061e"},"schema_version":"1.0","source":{"id":"1105.2866","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.2866","created_at":"2026-05-18T02:01:58Z"},{"alias_kind":"arxiv_version","alias_value":"1105.2866v2","created_at":"2026-05-18T02:01:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.2866","created_at":"2026-05-18T02:01:58Z"},{"alias_kind":"pith_short_12","alias_value":"FGMT7SHV57E4","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FGMT7SHV57E4TCQZ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FGMT7SHV","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:0c6e7a2bb78c49b1b9e8bfa3167f2a9845db9e66c46a792462c5ef13eb1afc48","target":"graph","created_at":"2026-05-18T02:01:58Z","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":"Bell nonlocality, entanglement and nonclassical correlations are different aspects of quantum correlations for a given state. There are many methods to measure nonclassical correlations. In this paper, nonclassical correlations in two-qubit spin models are measured by use of measurement-induced disturbance (MID) [Phys. Rev. A, 77, 022301 (2008)] and geometric measure of quantum discord (GQD) [Phys. Rev. Lett. 105, 190502 (2010)]. Their dependencies on external magnetic field, spin-spin coupling, and Dzyaloshinski-Moriya (DM) interaction are presented in detail. We also compare Bell nonlocality","authors_text":"Ahmad Abliz, Ai-Ling Ji, Guo-Feng Zhang, Heng Fan, Wu-Ming Liu, Zhao-tan Jiang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-14T06:09:08Z","title":"Quantum correlations in spin models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.2866","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":"sha256:7f3fe6f9757533142fb58ab22ac80f74037356d46dc2475eec4ef80a9874dc96","target":"record","created_at":"2026-05-18T02:01:58Z","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":"b72bc57b45da7e9f1f2e7412b8f4d50f50b5b4253b0e0efaa77ae6a17c787c85","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-14T06:09:08Z","title_canon_sha256":"9a2445e10dd2659ba9cfb99bf8f0d068037fe28ba297252764de1bfb7072061e"},"schema_version":"1.0","source":{"id":"1105.2866","kind":"arxiv","version":2}},"canonical_sha256":"29993fc8f5efc9c98a19e07d84a72425db5adbec8557876b8c34f74b79ffb074","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29993fc8f5efc9c98a19e07d84a72425db5adbec8557876b8c34f74b79ffb074","first_computed_at":"2026-05-18T02:01:58.291364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:58.291364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UK7A2JZhJS4iLaiwZDTaU5tkP2Nwj2khdk1uEMQl9xF3zv4eRsiwJWxH9luJgRgpLiZaJGuXrdsxGd7tVU6iAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:58.291916Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.2866","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f3fe6f9757533142fb58ab22ac80f74037356d46dc2475eec4ef80a9874dc96","sha256:0c6e7a2bb78c49b1b9e8bfa3167f2a9845db9e66c46a792462c5ef13eb1afc48"],"state_sha256":"50c2c8ad64f86a3e515d3649b5af6dfb0896e5d70ed7ff7bf8e4bf090b518dfe"}