{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:JGGACLYOL7KFDQWB7ADYJRORNG","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":"9146d14a04b21dc3c20ca87aeec701b9d0f8c2705ba22af6ed2bdbb371769f53","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-06-05T18:42:46Z","title_canon_sha256":"3ef8a009f0263d3a434fb8e476f5bae61fb1a46f5883a0f6c62295244b520354"},"schema_version":"1.0","source":{"id":"1406.1471","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.1471","created_at":"2026-05-18T00:56:59Z"},{"alias_kind":"arxiv_version","alias_value":"1406.1471v2","created_at":"2026-05-18T00:56:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.1471","created_at":"2026-05-18T00:56:59Z"},{"alias_kind":"pith_short_12","alias_value":"JGGACLYOL7KF","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"JGGACLYOL7KFDQWB","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"JGGACLYO","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:cae5440d6f5e66dfb23ecc450e4dca97c35dca45bf9cb7e02c84c6ba33f83957","target":"graph","created_at":"2026-05-18T00:56:59Z","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":"In the context of characterizing the structure of quantum entanglement in many-body systems, we introduce the entanglement contour, a tool to identify which real-space degrees of freedom contribute, and how much, to the entanglement of a region A with the rest of the system B. The entanglement contour provides a complementary, more refined approach to characterizing entanglement than just considering the entanglement entropy between A and B, with several concrete advantages. We illustrate this in the context of ground states and quantum quenches in fermionic quadratic systems. For instance, in","authors_text":"Guifre Vidal, Yangang Chen","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-06-05T18:42:46Z","title":"Entanglement contour"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.1471","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":"sha256:3a008517aa56bb6e78daafb3ba04aca441e4250fd990f181a82ae4f907c06a95","target":"record","created_at":"2026-05-18T00:56:59Z","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":"9146d14a04b21dc3c20ca87aeec701b9d0f8c2705ba22af6ed2bdbb371769f53","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-06-05T18:42:46Z","title_canon_sha256":"3ef8a009f0263d3a434fb8e476f5bae61fb1a46f5883a0f6c62295244b520354"},"schema_version":"1.0","source":{"id":"1406.1471","kind":"arxiv","version":2}},"canonical_sha256":"498c012f0e5fd451c2c1f80784c5d1699b7b21b3fd6bb8650a34899fdaa1fdd9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"498c012f0e5fd451c2c1f80784c5d1699b7b21b3fd6bb8650a34899fdaa1fdd9","first_computed_at":"2026-05-18T00:56:59.137163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:59.137163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vuJPh0i2CH4Sk+NSqfZLeO2fcZT4+Vz5Ccgu9nfoJdpSQ8HhACP4lfxF5Pmo1Rt6PB6ukQlqJk4qnwWB5u6nBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:59.137733Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.1471","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a008517aa56bb6e78daafb3ba04aca441e4250fd990f181a82ae4f907c06a95","sha256:cae5440d6f5e66dfb23ecc450e4dca97c35dca45bf9cb7e02c84c6ba33f83957"],"state_sha256":"1219449e75b945623e3c017790221147431ba530b37b9f8d8fe3928d598616a4"}