{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:G26ED5OM4NGPY555GDJCQ4DOBC","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":"12cf0c4edff0e36a2c8cb460c4dc90beb88ef677dd92663e3d88c48763e8fab5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-05-02T13:19:44Z","title_canon_sha256":"40343b99a618bdcfa01af16d73a8b7cccdb2bf54ece3d9c79b8daecff060d933"},"schema_version":"1.0","source":{"id":"1605.00472","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.00472","created_at":"2026-05-18T00:55:46Z"},{"alias_kind":"arxiv_version","alias_value":"1605.00472v1","created_at":"2026-05-18T00:55:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.00472","created_at":"2026-05-18T00:55:46Z"},{"alias_kind":"pith_short_12","alias_value":"G26ED5OM4NGP","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"G26ED5OM4NGPY555","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"G26ED5OM","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:a84ea82a2d151b688fbcd93adc835948e796c2b6c4a09f484657df3d79195d8f","target":"graph","created_at":"2026-05-18T00:55:46Z","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 introduce a variational implementation of cluster perturbation theory (CPT) to address the dynamics of spin systems driven out of equilibrium. We benchmark the method with the quantum Ising model subject to a sudden quench of the transverse magnetic field across the transition or within a phase. We treat both the one-dimensional case, for which an exact solution is available, as well the two-dimensional one, for which has to resort to numerical results. Comparison with exact results shows that the approach provides a quite accurate description of the real-time dynamics up to a characteristi","authors_text":"Enrico Arrigoni, Michele Fabrizio, Mohammad Zhian Asadzadeh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-05-02T13:19:44Z","title":"Non-equilibrium variational cluster perturbation theory: quench dynamics of the quantum Ising model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.00472","kind":"arxiv","version":1},"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:ac66f72ee6f3710e9a04005a21dc916fa6a7fa005d856775308932426b82c534","target":"record","created_at":"2026-05-18T00:55:46Z","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":"12cf0c4edff0e36a2c8cb460c4dc90beb88ef677dd92663e3d88c48763e8fab5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-05-02T13:19:44Z","title_canon_sha256":"40343b99a618bdcfa01af16d73a8b7cccdb2bf54ece3d9c79b8daecff060d933"},"schema_version":"1.0","source":{"id":"1605.00472","kind":"arxiv","version":1}},"canonical_sha256":"36bc41f5cce34cfc77bd30d228706e08b0495108305358be3748a7e7c3dbd259","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36bc41f5cce34cfc77bd30d228706e08b0495108305358be3748a7e7c3dbd259","first_computed_at":"2026-05-18T00:55:46.515752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:46.515752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eceq6tgj9R+g65r3WbWHbUAJV7obfOLLhQkPpKnhMCoUKRc/5niMJ4asCnKr2XNycHr5I+Dg+ScVKXfP1ZA/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:46.516286Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.00472","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac66f72ee6f3710e9a04005a21dc916fa6a7fa005d856775308932426b82c534","sha256:a84ea82a2d151b688fbcd93adc835948e796c2b6c4a09f484657df3d79195d8f"],"state_sha256":"7b93cc8e06742a2f5bb59bae65e1850cd7ebe431c6283bc9c5ffa5deac639e01"}