{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:VTRSBJ2Z7SJ2HZZR2BHMULWMYV","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":"64614489c81d4d30fd55cea872e07e6976915e1e4ef7c4ba4081e16a79a8cc6c","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-07-29T18:39:46Z","title_canon_sha256":"38951e2210e3f56b4c6ee75ab94e84edcd214c783eb6b67c80bb870e3f22c96f"},"schema_version":"1.0","source":{"id":"1107.6035","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.6035","created_at":"2026-05-18T04:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1107.6035v3","created_at":"2026-05-18T04:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.6035","created_at":"2026-05-18T04:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"VTRSBJ2Z7SJ2","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"VTRSBJ2Z7SJ2HZZR","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"VTRSBJ2Z","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:2d9662c7f5fde3ba2784787558041e281102cef84253e103f9071c63ffa046fa","target":"graph","created_at":"2026-05-18T04:00:13Z","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 study time evolution of a subsystem's density matrix under unitary evolution, generated by a sufficiently complex, say quantum chaotic, Hamiltonian, modeled by a random matrix. We exactly calculate all coherences, purity and fluctuations. We show that the reduced density matrix can be described in terms of a noncentral correlated Wishart ensemble for which we are able to perform analytical calculations of the eigenvalue density. Our description accounts for a transition from an arbitrary initial state towards a random state at large times, enabling us to determine the convergence time after","authors_text":"Marko Znidaric, Vinayak","cross_cats":["nlin.CD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-07-29T18:39:46Z","title":"Subsystem dynamics under random Hamiltonian evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.6035","kind":"arxiv","version":3},"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:e6b24d234490db3796b84a4755de53a01a185798669471bc6e26d8e5b7df6752","target":"record","created_at":"2026-05-18T04:00:13Z","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":"64614489c81d4d30fd55cea872e07e6976915e1e4ef7c4ba4081e16a79a8cc6c","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-07-29T18:39:46Z","title_canon_sha256":"38951e2210e3f56b4c6ee75ab94e84edcd214c783eb6b67c80bb870e3f22c96f"},"schema_version":"1.0","source":{"id":"1107.6035","kind":"arxiv","version":3}},"canonical_sha256":"ace320a759fc93a3e731d04eca2eccc56ca64566194a7de5293af33995fc0383","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ace320a759fc93a3e731d04eca2eccc56ca64566194a7de5293af33995fc0383","first_computed_at":"2026-05-18T04:00:13.564441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:13.564441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wxqjjZCuLW6wY90oUIOihzfliBjfYPu1DYVnNwyAE4Tkyxn+V8MmrahsOR1EoU2hFFXiaCRc7fjoHbTW1kwABQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:13.565046Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.6035","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6b24d234490db3796b84a4755de53a01a185798669471bc6e26d8e5b7df6752","sha256:2d9662c7f5fde3ba2784787558041e281102cef84253e103f9071c63ffa046fa"],"state_sha256":"290346cbb617d52160057928736a7c56cb666b3004c7d3b35416a9e20f4913d2"}