{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:O4XRTZN6CYWP5XVJ6YQIGNJQTQ","short_pith_number":"pith:O4XRTZN6","canonical_record":{"source":{"id":"0809.4397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-09-25T13:29:44Z","cross_cats_sorted":[],"title_canon_sha256":"45cc798c66ed74f9adf60953905e5dd37f93d319c5fa0bff0cca0407e56c0373","abstract_canon_sha256":"f866d34e8ce648304b590d48868a2858dbf19cc54b55c5a742e7a080138dc8e7"},"schema_version":"1.0"},"canonical_sha256":"772f19e5be162cfedea9f6208335309c26b8e96e12b7aa718b01c9011d976872","source":{"kind":"arxiv","id":"0809.4397","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.4397","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"0809.4397v1","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.4397","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"O4XRTZN6CYWP","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"O4XRTZN6CYWP5XVJ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"O4XRTZN6","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:O4XRTZN6CYWP5XVJ6YQIGNJQTQ","target":"record","payload":{"canonical_record":{"source":{"id":"0809.4397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-09-25T13:29:44Z","cross_cats_sorted":[],"title_canon_sha256":"45cc798c66ed74f9adf60953905e5dd37f93d319c5fa0bff0cca0407e56c0373","abstract_canon_sha256":"f866d34e8ce648304b590d48868a2858dbf19cc54b55c5a742e7a080138dc8e7"},"schema_version":"1.0"},"canonical_sha256":"772f19e5be162cfedea9f6208335309c26b8e96e12b7aa718b01c9011d976872","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:33.612539Z","signature_b64":"fymzr/zJ0Z+zNgrr+QOs19zTA6nUE2PLX96WccfTILjL+u/6OnMit2O7+AmBYLnNIZ0D/F7qGdN3Xj1IhnueCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"772f19e5be162cfedea9f6208335309c26b8e96e12b7aa718b01c9011d976872","last_reissued_at":"2026-05-18T02:15:33.611841Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:33.611841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0809.4397","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/EcdmyjFevU5gyVDloq3zAAqq4Hxo5sIEQ+kLYLMcUBkxd5dzX4M8x76ID+7CQRW8xeAoOpbxD+raN8ZrzXhBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T21:26:42.374401Z"},"content_sha256":"e56474af60573f61f6ce697df4566147140c264b680473957f93fca45435b5eb","schema_version":"1.0","event_id":"sha256:e56474af60573f61f6ce697df4566147140c264b680473957f93fca45435b5eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:O4XRTZN6CYWP5XVJ6YQIGNJQTQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Recent progress in open quantum systems: Non-Gaussian noise and decoherence in fermionic systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"B. Abel, B. Kubala, Clemens Neuenhahn, Florian Marquardt","submitted_at":"2008-09-25T13:29:44Z","abstract_excerpt":"We review our recent contributions to two topics that have become of interest in the field of open, dissipative quantum systems: non-Gaussian noise and decoherence in fermionic systems. Decoherence by non-Gaussian noise, i.e. by an environment that cannot be approximated as a bath of harmonic oscillators, is important in nanostructures (e.g. qubits) where there might be strong coupling to a small number of fluctuators. We first revisit the pedagogical example of dephasing by classical telegraph noise. Then we address two models where the quantum nature of the noise becomes essential: \"quantum "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.4397","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LDUfW5ajbEq/p57EQq74YeSGrulofLBrcNdSNsVninplu1c1UpH03iZHoDN2+APB/zoTCB/yYIu0cTvcmRGwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T21:26:42.374742Z"},"content_sha256":"47aa0396edfea0c72caa78ff9316dffcab91efa307a8b2b446aa897acb6d6fe9","schema_version":"1.0","event_id":"sha256:47aa0396edfea0c72caa78ff9316dffcab91efa307a8b2b446aa897acb6d6fe9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ/bundle.json","state_url":"https://pith.science/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-29T21:26:42Z","links":{"resolver":"https://pith.science/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ","bundle":"https://pith.science/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ/bundle.json","state":"https://pith.science/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O4XRTZN6CYWP5XVJ6YQIGNJQTQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:O4XRTZN6CYWP5XVJ6YQIGNJQTQ","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":"f866d34e8ce648304b590d48868a2858dbf19cc54b55c5a742e7a080138dc8e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-09-25T13:29:44Z","title_canon_sha256":"45cc798c66ed74f9adf60953905e5dd37f93d319c5fa0bff0cca0407e56c0373"},"schema_version":"1.0","source":{"id":"0809.4397","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.4397","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"0809.4397v1","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.4397","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"O4XRTZN6CYWP","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"O4XRTZN6CYWP5XVJ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"O4XRTZN6","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:47aa0396edfea0c72caa78ff9316dffcab91efa307a8b2b446aa897acb6d6fe9","target":"graph","created_at":"2026-05-18T02:15:33Z","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 review our recent contributions to two topics that have become of interest in the field of open, dissipative quantum systems: non-Gaussian noise and decoherence in fermionic systems. Decoherence by non-Gaussian noise, i.e. by an environment that cannot be approximated as a bath of harmonic oscillators, is important in nanostructures (e.g. qubits) where there might be strong coupling to a small number of fluctuators. We first revisit the pedagogical example of dephasing by classical telegraph noise. Then we address two models where the quantum nature of the noise becomes essential: \"quantum ","authors_text":"B. Abel, B. Kubala, Clemens Neuenhahn, Florian Marquardt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-09-25T13:29:44Z","title":"Recent progress in open quantum systems: Non-Gaussian noise and decoherence in fermionic systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.4397","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:e56474af60573f61f6ce697df4566147140c264b680473957f93fca45435b5eb","target":"record","created_at":"2026-05-18T02:15:33Z","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":"f866d34e8ce648304b590d48868a2858dbf19cc54b55c5a742e7a080138dc8e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-09-25T13:29:44Z","title_canon_sha256":"45cc798c66ed74f9adf60953905e5dd37f93d319c5fa0bff0cca0407e56c0373"},"schema_version":"1.0","source":{"id":"0809.4397","kind":"arxiv","version":1}},"canonical_sha256":"772f19e5be162cfedea9f6208335309c26b8e96e12b7aa718b01c9011d976872","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"772f19e5be162cfedea9f6208335309c26b8e96e12b7aa718b01c9011d976872","first_computed_at":"2026-05-18T02:15:33.611841Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:33.611841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fymzr/zJ0Z+zNgrr+QOs19zTA6nUE2PLX96WccfTILjL+u/6OnMit2O7+AmBYLnNIZ0D/F7qGdN3Xj1IhnueCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:33.612539Z","signed_message":"canonical_sha256_bytes"},"source_id":"0809.4397","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e56474af60573f61f6ce697df4566147140c264b680473957f93fca45435b5eb","sha256:47aa0396edfea0c72caa78ff9316dffcab91efa307a8b2b446aa897acb6d6fe9"],"state_sha256":"c80c3735a8cdc8fb693f543eb7c876207fba42ded5dd41d3800325e5c1b7dfcc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kjJIKmGGHz3iaykMg3gAn28A+dMh/Gnn6hYth49Lb6YYjjogDAjwmGJn+FnG4C7PhCBijwwks//KzwD0lrWiAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T21:26:42.376889Z","bundle_sha256":"57dcf91311c2b744f5bc70268ef9e308ea5a9de2e7c3c9e68cbd5832dc8a289a"}}