{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:LEP6B36FH2HCQTNGHQGWUAUXKQ","short_pith_number":"pith:LEP6B36F","schema_version":"1.0","canonical_sha256":"591fe0efc53e8e284da63c0d6a029754275e6d291df2143d568e5b0ab6e7ee75","source":{"kind":"arxiv","id":"cond-mat/0604306","version":2},"attestation_state":"computed","paper":{"title":"Low-frequency Noise in Josephson Junctions for Superconducting Qubits","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. H. Verbruggen, C. J. P. M. Harmans, E. F. C. Driessen, J. E. Mooij, J. Eroms, J. H. Plantenberg, K. Huizinga, L. C. van Schaarenburg, R. N. Schouten","submitted_at":"2006-04-12T11:16:37Z","abstract_excerpt":"We have studied low-frequency resistance fluctuations in shadow-evaporated Al/AlOx/Al tunnel junctions. Between 300 K and 5 K the spectral density follows a 1/f-law. Below 5 K, individual defects distort the 1/f-shape of the spectrum. The spectral density decreases linearly with temperature between 150 K and 1 K and saturates below 0.8 K. At 4.2 K, the spectral density is about two orders of magnitude lower than expected from a recent survey [D. J. Van Harlingen et al., Phys. Rev. B 70, 064510 (2004)]. Due to the saturation below 0.8 K the estimated qubit dephasing times at 100 mK are only abo"},"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":"cond-mat/0604306","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2006-04-12T11:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"2a81179259aad47cd06e47485dc6046a35c279c515a0e64307918574cc699dbc","abstract_canon_sha256":"9b24c8200c3c5e911d90478ccba12040142b3137547c0d50accea14703a54ef3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:53:49.619928Z","signature_b64":"/xo2sNcco1VSVPMjBBw7sAjBfEZcDDkz3ZlrQnBEiwPuT+7rdZp1k8yAneK14OOv7+JK+DfhYBlH2BXmgAffCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"591fe0efc53e8e284da63c0d6a029754275e6d291df2143d568e5b0ab6e7ee75","last_reissued_at":"2026-07-04T14:53:49.619573Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:53:49.619573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Low-frequency Noise in Josephson Junctions for Superconducting Qubits","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. H. Verbruggen, C. J. P. M. Harmans, E. F. C. Driessen, J. E. Mooij, J. Eroms, J. H. Plantenberg, K. Huizinga, L. C. van Schaarenburg, R. N. Schouten","submitted_at":"2006-04-12T11:16:37Z","abstract_excerpt":"We have studied low-frequency resistance fluctuations in shadow-evaporated Al/AlOx/Al tunnel junctions. Between 300 K and 5 K the spectral density follows a 1/f-law. Below 5 K, individual defects distort the 1/f-shape of the spectrum. The spectral density decreases linearly with temperature between 150 K and 1 K and saturates below 0.8 K. At 4.2 K, the spectral density is about two orders of magnitude lower than expected from a recent survey [D. J. Van Harlingen et al., Phys. Rev. B 70, 064510 (2004)]. Due to the saturation below 0.8 K the estimated qubit dephasing times at 100 mK are only abo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0604306","kind":"arxiv","version":2},"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/cond-mat/0604306/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":"cond-mat/0604306","created_at":"2026-07-04T14:53:49.619633+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0604306v2","created_at":"2026-07-04T14:53:49.619633+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0604306","created_at":"2026-07-04T14:53:49.619633+00:00"},{"alias_kind":"pith_short_12","alias_value":"LEP6B36FH2HC","created_at":"2026-07-04T14:53:49.619633+00:00"},{"alias_kind":"pith_short_16","alias_value":"LEP6B36FH2HCQTNG","created_at":"2026-07-04T14:53:49.619633+00:00"},{"alias_kind":"pith_short_8","alias_value":"LEP6B36F","created_at":"2026-07-04T14:53:49.619633+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/LEP6B36FH2HCQTNGHQGWUAUXKQ","json":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ.json","graph_json":"https://pith.science/api/pith-number/LEP6B36FH2HCQTNGHQGWUAUXKQ/graph.json","events_json":"https://pith.science/api/pith-number/LEP6B36FH2HCQTNGHQGWUAUXKQ/events.json","paper":"https://pith.science/paper/LEP6B36F"},"agent_actions":{"view_html":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ","download_json":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ.json","view_paper":"https://pith.science/paper/LEP6B36F","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0604306&json=true","fetch_graph":"https://pith.science/api/pith-number/LEP6B36FH2HCQTNGHQGWUAUXKQ/graph.json","fetch_events":"https://pith.science/api/pith-number/LEP6B36FH2HCQTNGHQGWUAUXKQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ/action/storage_attestation","attest_author":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ/action/author_attestation","sign_citation":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ/action/citation_signature","submit_replication":"https://pith.science/pith/LEP6B36FH2HCQTNGHQGWUAUXKQ/action/replication_record"}},"created_at":"2026-07-04T14:53:49.619633+00:00","updated_at":"2026-07-04T14:53:49.619633+00:00"}