{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:LQBEZSIYV36HCXJDVVUV24SG3N","short_pith_number":"pith:LQBEZSIY","schema_version":"1.0","canonical_sha256":"5c024cc918aefc715d23ad695d7246db422b8bc0d69e2b4f72412c1ac75d8be7","source":{"kind":"arxiv","id":"2107.04147","version":2},"attestation_state":"computed","paper":{"title":"A cavity entanglement and state swapping method to accelerate the search for axion dark matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"quant-ph","authors_text":"B. M. Brubaker, D. A. Palken, E. P. Ruddy, K. W. Lehnert, K. Wurtz, Y. Jiang","submitted_at":"2021-07-08T23:38:03Z","abstract_excerpt":"In cavity-based axion dark matter detectors, quantum noise remains a primary barrier to achieving the scan rate necessary for a comprehensive search of axion parameter space. Here we introduce a method of scan rate enhancement in which an axion-sensitive cavity is coupled to an auxiliary resonant circuit through simultaneous two-mode squeezing (entangling) and state swapping interactions. We show analytically that when combined, these interactions can amplify an axion signal before it becomes polluted by vacuum noise introduced by measurement. This internal amplification yields a wider bandwid"},"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":"2107.04147","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-07-08T23:38:03Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"9af50ecb27c0886ca8ed6e662c9b005660ecf79d013795db8503d787f26fde10","abstract_canon_sha256":"595368e1bf1b1b424ad8bcb723c74a0e728ceed64c41c14d17be89334919478c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:17:03.022620Z","signature_b64":"7YWwM0KnRdM2WUElO+afPGw23alje9J/L5fGVVabh2gypcYxWA4vCDraSm4VhPrMtIJ2OtzPxMjEMipSXjMnBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5c024cc918aefc715d23ad695d7246db422b8bc0d69e2b4f72412c1ac75d8be7","last_reissued_at":"2026-07-05T04:17:03.022273Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:17:03.022273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A cavity entanglement and state swapping method to accelerate the search for axion dark matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"quant-ph","authors_text":"B. M. Brubaker, D. A. Palken, E. P. Ruddy, K. W. Lehnert, K. Wurtz, Y. Jiang","submitted_at":"2021-07-08T23:38:03Z","abstract_excerpt":"In cavity-based axion dark matter detectors, quantum noise remains a primary barrier to achieving the scan rate necessary for a comprehensive search of axion parameter space. Here we introduce a method of scan rate enhancement in which an axion-sensitive cavity is coupled to an auxiliary resonant circuit through simultaneous two-mode squeezing (entangling) and state swapping interactions. We show analytically that when combined, these interactions can amplify an axion signal before it becomes polluted by vacuum noise introduced by measurement. This internal amplification yields a wider bandwid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.04147","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/2107.04147/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":"2107.04147","created_at":"2026-07-05T04:17:03.022336+00:00"},{"alias_kind":"arxiv_version","alias_value":"2107.04147v2","created_at":"2026-07-05T04:17:03.022336+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.04147","created_at":"2026-07-05T04:17:03.022336+00:00"},{"alias_kind":"pith_short_12","alias_value":"LQBEZSIYV36H","created_at":"2026-07-05T04:17:03.022336+00:00"},{"alias_kind":"pith_short_16","alias_value":"LQBEZSIYV36HCXJD","created_at":"2026-07-05T04:17:03.022336+00:00"},{"alias_kind":"pith_short_8","alias_value":"LQBEZSIY","created_at":"2026-07-05T04:17:03.022336+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/LQBEZSIYV36HCXJDVVUV24SG3N","json":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N.json","graph_json":"https://pith.science/api/pith-number/LQBEZSIYV36HCXJDVVUV24SG3N/graph.json","events_json":"https://pith.science/api/pith-number/LQBEZSIYV36HCXJDVVUV24SG3N/events.json","paper":"https://pith.science/paper/LQBEZSIY"},"agent_actions":{"view_html":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N","download_json":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N.json","view_paper":"https://pith.science/paper/LQBEZSIY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2107.04147&json=true","fetch_graph":"https://pith.science/api/pith-number/LQBEZSIYV36HCXJDVVUV24SG3N/graph.json","fetch_events":"https://pith.science/api/pith-number/LQBEZSIYV36HCXJDVVUV24SG3N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N/action/storage_attestation","attest_author":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N/action/author_attestation","sign_citation":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N/action/citation_signature","submit_replication":"https://pith.science/pith/LQBEZSIYV36HCXJDVVUV24SG3N/action/replication_record"}},"created_at":"2026-07-05T04:17:03.022336+00:00","updated_at":"2026-07-05T04:17:03.022336+00:00"}