{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:AYCDZCDHW743YANITNTUPJCA5D","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":"c9189efb7c9a79091a43c846bfe1043f1b08b6e03d6690bd4daaafa17e91c54f","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2004-05-25T18:26:52Z","title_canon_sha256":"f37e8c57c0e014b7a2ebb9488a8cd4c4f3cd237e4ba20ea86195ef164052fb04"},"schema_version":"1.0","source":{"id":"quant-ph/0405147","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0405147","created_at":"2026-07-04T16:50:18Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0405147v1","created_at":"2026-07-04T16:50:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0405147","created_at":"2026-07-04T16:50:18Z"},{"alias_kind":"pith_short_12","alias_value":"AYCDZCDHW743","created_at":"2026-07-04T16:50:18Z"},{"alias_kind":"pith_short_16","alias_value":"AYCDZCDHW743YANI","created_at":"2026-07-04T16:50:18Z"},{"alias_kind":"pith_short_8","alias_value":"AYCDZCDH","created_at":"2026-07-04T16:50:18Z"}],"graph_snapshots":[{"event_id":"sha256:cc1f359fd977d8c4045791cb0538ccddfba41c0757879c191ae5906d5982e1eb","target":"graph","created_at":"2026-07-04T16:50:18Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/quant-ph/0405147/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum Brownian oscillator model (QBM), in the Fock-space representation, can be viewed as a multi-level spin-boson model. At sufficiently low temperature, the oscillator degrees of freedom are dynamically reduced to the lowest two levels and the system behaves effectively as a two-level (E2L) spin-boson model (SBM) in this limit. We discuss the physical mechanism of level reduction and analyze the behavior of E2L-SBM from the QBM solutions. The availability of close solutions for the QBM enables us to study the non-Markovian features of decoherence and leakage in a SBM in the non-perturbativ","authors_text":"B. L. Hu, K. Shiokawa","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2004-05-25T18:26:52Z","title":"Qubit Decoherence and Non-Markovian Dynamics at Low Temperatures via an Effective Spin-Boson Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0405147","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":"sha256:05586c676cb2140533f79342c7b5b42adf983e15db39f31bfc6afec6b6234eaf","target":"record","created_at":"2026-07-04T16:50:18Z","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":"c9189efb7c9a79091a43c846bfe1043f1b08b6e03d6690bd4daaafa17e91c54f","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2004-05-25T18:26:52Z","title_canon_sha256":"f37e8c57c0e014b7a2ebb9488a8cd4c4f3cd237e4ba20ea86195ef164052fb04"},"schema_version":"1.0","source":{"id":"quant-ph/0405147","kind":"arxiv","version":1}},"canonical_sha256":"06043c8867b7f9bc01a89b6747a440e8f20d8d8c29bba648f1ba350aa7954aa8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06043c8867b7f9bc01a89b6747a440e8f20d8d8c29bba648f1ba350aa7954aa8","first_computed_at":"2026-07-04T16:50:18.349270Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:50:18.349270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fJ02fQXa5YtyCZiwWSQjDMglwCM6+pSnDrl+guabuWcRapJAHLAXcOkkDJlbtk+cSUJ0wvDjAZ4Q0g2yEP56Dw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:50:18.349618Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0405147","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05586c676cb2140533f79342c7b5b42adf983e15db39f31bfc6afec6b6234eaf","sha256:cc1f359fd977d8c4045791cb0538ccddfba41c0757879c191ae5906d5982e1eb"],"state_sha256":"e1bbe52058bc902966a4f5812accb8da221d0d010fd76cb6e74e205a484b8ac5"}