{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:H4BSWVKITOMAEX2HYBI6FTZ3PQ","short_pith_number":"pith:H4BSWVKI","schema_version":"1.0","canonical_sha256":"3f032b55489b98025f47c051e2cf3b7c0b0b6e9b04f86f38af0e3f44187dad56","source":{"kind":"arxiv","id":"1009.4673","version":1},"attestation_state":"computed","paper":{"title":"Noise Performance of Lumped Element Direct Current Superconducting Quantum Interference Device Amplifiers in the 4 GHz-8 GHz Range","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"cond-mat.supr-con","authors_text":"Jose Aumentado, Kent Irwin, Lafe Spietz, Minhyea Lee","submitted_at":"2010-09-23T18:17:48Z","abstract_excerpt":"We report on the noise of a lumped element Direct Current Superconducting Quantum Interference Device amplifier. We show that the noise temperature in the 4 GHz-8 GHz range over ranges of 10's of MHz is below 1 kelvin (three photons of added noise), characterize the overall behavior of the noise as a function of bias parameters, and discuss potential mechanisms which determine the noise performance in this amplifier. We show that this device can provide more than a factor of 10 improvement in practical system noise over existing phase-preserving microwave measurement systems in this frequency "},"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":"1009.4673","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-23T18:17:48Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"3e046dcc905257755792e1d6568f48b5f22b060917c29989b5346b0a367a8069","abstract_canon_sha256":"20295856965af3f188a1c6346ca0b2bdf2e50d0d914c0d53a3844f9d3d14a22e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:18.034273Z","signature_b64":"LlmM3c4UUm7Tqz5QWHd3bXCkrazOcEvuN6k+M/MQH6TxVVn0dyFCAwIYKJCHpO+YjDq+McYSKXyGXThsHrsXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3f032b55489b98025f47c051e2cf3b7c0b0b6e9b04f86f38af0e3f44187dad56","last_reissued_at":"2026-05-18T02:05:18.033567Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:18.033567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Noise Performance of Lumped Element Direct Current Superconducting Quantum Interference Device Amplifiers in the 4 GHz-8 GHz Range","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"cond-mat.supr-con","authors_text":"Jose Aumentado, Kent Irwin, Lafe Spietz, Minhyea Lee","submitted_at":"2010-09-23T18:17:48Z","abstract_excerpt":"We report on the noise of a lumped element Direct Current Superconducting Quantum Interference Device amplifier. We show that the noise temperature in the 4 GHz-8 GHz range over ranges of 10's of MHz is below 1 kelvin (three photons of added noise), characterize the overall behavior of the noise as a function of bias parameters, and discuss potential mechanisms which determine the noise performance in this amplifier. We show that this device can provide more than a factor of 10 improvement in practical system noise over existing phase-preserving microwave measurement systems in this frequency "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4673","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1009.4673","created_at":"2026-05-18T02:05:18.033678+00:00"},{"alias_kind":"arxiv_version","alias_value":"1009.4673v1","created_at":"2026-05-18T02:05:18.033678+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4673","created_at":"2026-05-18T02:05:18.033678+00:00"},{"alias_kind":"pith_short_12","alias_value":"H4BSWVKITOMA","created_at":"2026-05-18T12:26:07.630475+00:00"},{"alias_kind":"pith_short_16","alias_value":"H4BSWVKITOMAEX2H","created_at":"2026-05-18T12:26:07.630475+00:00"},{"alias_kind":"pith_short_8","alias_value":"H4BSWVKI","created_at":"2026-05-18T12:26:07.630475+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/H4BSWVKITOMAEX2HYBI6FTZ3PQ","json":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ.json","graph_json":"https://pith.science/api/pith-number/H4BSWVKITOMAEX2HYBI6FTZ3PQ/graph.json","events_json":"https://pith.science/api/pith-number/H4BSWVKITOMAEX2HYBI6FTZ3PQ/events.json","paper":"https://pith.science/paper/H4BSWVKI"},"agent_actions":{"view_html":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ","download_json":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ.json","view_paper":"https://pith.science/paper/H4BSWVKI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1009.4673&json=true","fetch_graph":"https://pith.science/api/pith-number/H4BSWVKITOMAEX2HYBI6FTZ3PQ/graph.json","fetch_events":"https://pith.science/api/pith-number/H4BSWVKITOMAEX2HYBI6FTZ3PQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ/action/storage_attestation","attest_author":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ/action/author_attestation","sign_citation":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ/action/citation_signature","submit_replication":"https://pith.science/pith/H4BSWVKITOMAEX2HYBI6FTZ3PQ/action/replication_record"}},"created_at":"2026-05-18T02:05:18.033678+00:00","updated_at":"2026-05-18T02:05:18.033678+00:00"}