{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:HDCCNETPSV5L2KBJDNVTANAYQJ","short_pith_number":"pith:HDCCNETP","schema_version":"1.0","canonical_sha256":"38c426926f957abd28291b6b3034188268d00f1874cf8df1739bfbe1e9e49967","source":{"kind":"arxiv","id":"1912.04982","version":1},"attestation_state":"computed","paper":{"title":"Two-qubit spectroscopy of spatiotemporally correlated quantum noise in superconducting qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David Kim, F\\'elix Beaudoin, Jack Y. Qiu, Jonilyn Yoder, Leigh M. Norris, Lorenza Viola, Morten Kjaergaard, Roni Winik, Simon Gustavsson, Uwe von L\\\"upke, William D. Oliver, Youngkyu Sung","submitted_at":"2019-12-10T21:04:59Z","abstract_excerpt":"Noise that exhibits significant temporal and spatial correlations across multiple qubits can be especially harmful to both fault-tolerant quantum computation and quantum-enhanced metrology. However, a complete spectral characterization of the noise environment of even a two-qubit system has not been reported thus far. We propose and experimentally validate a protocol for two-qubit dephasing noise spectroscopy based on continuous control modulation. By combining ideas from spin-locking relaxometry with a statistically motivated robust estimation approach, our protocol allows for the simultaneou"},"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":"1912.04982","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-12-10T21:04:59Z","cross_cats_sorted":[],"title_canon_sha256":"408b0555d7c183fe0b60da866fb0aba1c0a5c54b9e130a1af630ff4a5c9f2059","abstract_canon_sha256":"f9cf45238abb5250b7da5f89943c6741bb989e6ad5ec17f5204bb2b92c790953"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:33:57.854343Z","signature_b64":"pNzrcD8ofNm6FR8dAIel72NT7j4lPEY2ZZI9ez/zxmzdRVyPtqgQ4UvAQj+kmcNxJ5ine8BqtHNDbt/w1lvICA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38c426926f957abd28291b6b3034188268d00f1874cf8df1739bfbe1e9e49967","last_reissued_at":"2026-07-05T01:33:57.853932Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:33:57.853932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Two-qubit spectroscopy of spatiotemporally correlated quantum noise in superconducting qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David Kim, F\\'elix Beaudoin, Jack Y. Qiu, Jonilyn Yoder, Leigh M. Norris, Lorenza Viola, Morten Kjaergaard, Roni Winik, Simon Gustavsson, Uwe von L\\\"upke, William D. Oliver, Youngkyu Sung","submitted_at":"2019-12-10T21:04:59Z","abstract_excerpt":"Noise that exhibits significant temporal and spatial correlations across multiple qubits can be especially harmful to both fault-tolerant quantum computation and quantum-enhanced metrology. However, a complete spectral characterization of the noise environment of even a two-qubit system has not been reported thus far. We propose and experimentally validate a protocol for two-qubit dephasing noise spectroscopy based on continuous control modulation. By combining ideas from spin-locking relaxometry with a statistically motivated robust estimation approach, our protocol allows for the simultaneou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.04982","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/1912.04982/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":"1912.04982","created_at":"2026-07-05T01:33:57.853991+00:00"},{"alias_kind":"arxiv_version","alias_value":"1912.04982v1","created_at":"2026-07-05T01:33:57.853991+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.04982","created_at":"2026-07-05T01:33:57.853991+00:00"},{"alias_kind":"pith_short_12","alias_value":"HDCCNETPSV5L","created_at":"2026-07-05T01:33:57.853991+00:00"},{"alias_kind":"pith_short_16","alias_value":"HDCCNETPSV5L2KBJ","created_at":"2026-07-05T01:33:57.853991+00:00"},{"alias_kind":"pith_short_8","alias_value":"HDCCNETP","created_at":"2026-07-05T01:33:57.853991+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/HDCCNETPSV5L2KBJDNVTANAYQJ","json":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ.json","graph_json":"https://pith.science/api/pith-number/HDCCNETPSV5L2KBJDNVTANAYQJ/graph.json","events_json":"https://pith.science/api/pith-number/HDCCNETPSV5L2KBJDNVTANAYQJ/events.json","paper":"https://pith.science/paper/HDCCNETP"},"agent_actions":{"view_html":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ","download_json":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ.json","view_paper":"https://pith.science/paper/HDCCNETP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1912.04982&json=true","fetch_graph":"https://pith.science/api/pith-number/HDCCNETPSV5L2KBJDNVTANAYQJ/graph.json","fetch_events":"https://pith.science/api/pith-number/HDCCNETPSV5L2KBJDNVTANAYQJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ/action/storage_attestation","attest_author":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ/action/author_attestation","sign_citation":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ/action/citation_signature","submit_replication":"https://pith.science/pith/HDCCNETPSV5L2KBJDNVTANAYQJ/action/replication_record"}},"created_at":"2026-07-05T01:33:57.853991+00:00","updated_at":"2026-07-05T01:33:57.853991+00:00"}