{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DGT5YGGXTVL6ND7CNTQCHYKLIB","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":"ea57cbab90b7809f134a90713a750f689b8c9e43d03416a64a364c309c52abab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-05-19T14:39:56Z","title_canon_sha256":"17e0728fa0d7a98f86763b61941c389172c2e731abf8cec5b560c5603d5eb2a2"},"schema_version":"1.0","source":{"id":"1205.4331","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.4331","created_at":"2026-05-18T01:57:25Z"},{"alias_kind":"arxiv_version","alias_value":"1205.4331v2","created_at":"2026-05-18T01:57:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.4331","created_at":"2026-05-18T01:57:25Z"},{"alias_kind":"pith_short_12","alias_value":"DGT5YGGXTVL6","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DGT5YGGXTVL6ND7C","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DGT5YGGX","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:c09a8148e84b119673bf6aec25a0a5c244eaaf72cf83d2b0248a875967632ffe","target":"graph","created_at":"2026-05-18T01:57:25Z","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 a local quench where two free-fermion half-chains are coupled via a defect. We show that the logarithmic increase of the entanglement entropy is governed by the same effective central charge which appears in the ground-state properties and which is known exactly. For unequal initial filling of the half-chains, we determine the linear increase of the entanglement entropy.","authors_text":"Ingo Peschel, Viktor Eisler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-05-19T14:39:56Z","title":"On entanglement evolution across defects in critical chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.4331","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":"sha256:32fa407bf7f2e31357f33eafe609ca207faf919f1ed85c181751615dd3d7237f","target":"record","created_at":"2026-05-18T01:57:25Z","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":"ea57cbab90b7809f134a90713a750f689b8c9e43d03416a64a364c309c52abab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-05-19T14:39:56Z","title_canon_sha256":"17e0728fa0d7a98f86763b61941c389172c2e731abf8cec5b560c5603d5eb2a2"},"schema_version":"1.0","source":{"id":"1205.4331","kind":"arxiv","version":2}},"canonical_sha256":"19a7dc18d79d57e68fe26ce023e14b4060f3d1a8b8171310f3333fc151937587","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19a7dc18d79d57e68fe26ce023e14b4060f3d1a8b8171310f3333fc151937587","first_computed_at":"2026-05-18T01:57:25.427487Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:25.427487Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fedZt+ib2UuFHzZg9d7UKq2s3DpQ9cK29cQhcURc49oGhBze68rU6VO88R5SHH0XxXX/8AcK7z4ERZBZ+Ao4AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:25.428007Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.4331","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32fa407bf7f2e31357f33eafe609ca207faf919f1ed85c181751615dd3d7237f","sha256:c09a8148e84b119673bf6aec25a0a5c244eaaf72cf83d2b0248a875967632ffe"],"state_sha256":"72d2cce78be0ec1cf380bccd85081cf2283a48829f154980e2a3b3f47f32eb16"}