{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:JCEQWUPZMXMREKQCFJIO2LJ7ZA","short_pith_number":"pith:JCEQWUPZ","schema_version":"1.0","canonical_sha256":"48890b51f965d9122a022a50ed2d3fc8244fe1819ec8ddc309cb70e6fd27749d","source":{"kind":"arxiv","id":"2608.04672","version":1},"attestation_state":"computed","paper":{"title":"Effect of Cross-Spectral Correlations on Qubit Dynamics: Coherence Revival and Relaxation Modulation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Abhijit Bandyopadhyay, Siddhartha Dutta, Sujay Mondal","submitted_at":"2026-08-05T10:30:33Z","abstract_excerpt":"We investigate the reduced dynamics of a qubit subject to correlated longitudinal and transverse noise arising from its coupling to a shared bosonic bath. The environmental fluctuations are characterized by a positive-semidefinite matrix-valued spectral density, whose complex off-diagonal elements encode correlations between dephasing and relaxation channels in the frequency domain. Within the second-order time-convolutionless framework, we derive closed time-local equations for the Bloch-vector components of the reduced density matrix. The numerical implementation is validated against the exa"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2608.04672","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-05T10:30:33Z","cross_cats_sorted":[],"title_canon_sha256":"4950392741fbcb60465bcc0503c7e2a0055ca8ebb0bf6d5a0831b9513a99ed39","abstract_canon_sha256":"d8387f785de33a741c09e24fd7f620deea362861b2506d1880e3efa651521f7c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-06T01:46:08.410397Z","signature_b64":"h9hmrOy5kvQNPildXuRLdtYEEnL+a3j/JbdFpsU/ewrLjnjTAlU+MY2RG4k1FvdA4q6nKwURAJf23HZXDi1GDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48890b51f965d9122a022a50ed2d3fc8244fe1819ec8ddc309cb70e6fd27749d","last_reissued_at":"2026-08-06T01:46:08.408850Z","signature_status":"signed_v1","first_computed_at":"2026-08-06T01:46:08.408850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Effect of Cross-Spectral Correlations on Qubit Dynamics: Coherence Revival and Relaxation Modulation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Abhijit Bandyopadhyay, Siddhartha Dutta, Sujay Mondal","submitted_at":"2026-08-05T10:30:33Z","abstract_excerpt":"We investigate the reduced dynamics of a qubit subject to correlated longitudinal and transverse noise arising from its coupling to a shared bosonic bath. The environmental fluctuations are characterized by a positive-semidefinite matrix-valued spectral density, whose complex off-diagonal elements encode correlations between dephasing and relaxation channels in the frequency domain. Within the second-order time-convolutionless framework, we derive closed time-local equations for the Bloch-vector components of the reduced density matrix. The numerical implementation is validated against the exa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.04672","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.04672/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2608.04672","created_at":"2026-08-06T01:46:08.410686+00:00"},{"alias_kind":"arxiv_version","alias_value":"2608.04672v1","created_at":"2026-08-06T01:46:08.410686+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.04672","created_at":"2026-08-06T01:46:08.410686+00:00"},{"alias_kind":"pith_short_12","alias_value":"JCEQWUPZMXMR","created_at":"2026-08-06T01:46:08.410686+00:00"},{"alias_kind":"pith_short_16","alias_value":"JCEQWUPZMXMREKQC","created_at":"2026-08-06T01:46:08.410686+00:00"},{"alias_kind":"pith_short_8","alias_value":"JCEQWUPZ","created_at":"2026-08-06T01:46:08.410686+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA","json":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA.json","graph_json":"https://pith.science/api/pith-number/JCEQWUPZMXMREKQCFJIO2LJ7ZA/graph.json","events_json":"https://pith.science/api/pith-number/JCEQWUPZMXMREKQCFJIO2LJ7ZA/events.json","paper":"https://pith.science/paper/JCEQWUPZ"},"agent_actions":{"view_html":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA","download_json":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA.json","view_paper":"https://pith.science/paper/JCEQWUPZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2608.04672&json=true","fetch_graph":"https://pith.science/api/pith-number/JCEQWUPZMXMREKQCFJIO2LJ7ZA/graph.json","fetch_events":"https://pith.science/api/pith-number/JCEQWUPZMXMREKQCFJIO2LJ7ZA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA/action/storage_attestation","attest_author":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA/action/author_attestation","sign_citation":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA/action/citation_signature","submit_replication":"https://pith.science/pith/JCEQWUPZMXMREKQCFJIO2LJ7ZA/action/replication_record"}},"created_at":"2026-08-06T01:46:08.410686+00:00","updated_at":"2026-08-06T01:46:08.410686+00:00"}