{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:Y3ONDFYC67AJDYOISJCTQZRE5Y","short_pith_number":"pith:Y3ONDFYC","schema_version":"1.0","canonical_sha256":"c6dcd19702f7c091e1c89245386624ee083e95284335db37093f2d14ae2914aa","source":{"kind":"arxiv","id":"1408.2905","version":3},"attestation_state":"computed","paper":{"title":"High Cooperativity Cavity QED with Magnons at Microwave Frequencies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"quant-ph","authors_text":"Daniel L. Creedon, Maxim Goryachev, Michael E. Tobar, Mikhail Kostylev, Warrick G. Farr, Yaohui Fan","submitted_at":"2014-08-13T03:15:39Z","abstract_excerpt":"Using a sub-millimetre sized YIG (Yttrium Iron Garnet) sphere mounted in a magnetic field-focusing cavity, we demonstrate an ultra-high cooperativity of $10^5$ between magnon and photon modes at millikelvin temperatures and microwave frequencies. The cavity is designed to act as a magnetic dipole by using a novel multiple-post approach, effectively focusing the cavity magnetic field within the YIG crystal with a filling factor of 3%. Coupling strength (normal-mode splitting) of 2 GHz, (equivalent to 76 cavity linewidths or $0.3$ Hz per spin), is achieved for a bright cavity mode that constitut"},"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":"1408.2905","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-08-13T03:15:39Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"288095d786dd4b26faafb44df241f7bb6753164f1427a525a5c51a21ad1cb1a4","abstract_canon_sha256":"5a7cd2faae9756a7b7fa223cf08339266ff235adea619c644dae1c59ebd604fc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:01.040663Z","signature_b64":"l0CTjXb3eHUBpb4fdH+ClylQ0QEHBc7I0581zs5ixuRSCbCFHzCI8O+uZ6zzjeqS+6JshmW0j7fdvF/VCR0dAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6dcd19702f7c091e1c89245386624ee083e95284335db37093f2d14ae2914aa","last_reissued_at":"2026-05-18T02:33:01.040300Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:01.040300Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High Cooperativity Cavity QED with Magnons at Microwave Frequencies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"quant-ph","authors_text":"Daniel L. Creedon, Maxim Goryachev, Michael E. Tobar, Mikhail Kostylev, Warrick G. Farr, Yaohui Fan","submitted_at":"2014-08-13T03:15:39Z","abstract_excerpt":"Using a sub-millimetre sized YIG (Yttrium Iron Garnet) sphere mounted in a magnetic field-focusing cavity, we demonstrate an ultra-high cooperativity of $10^5$ between magnon and photon modes at millikelvin temperatures and microwave frequencies. The cavity is designed to act as a magnetic dipole by using a novel multiple-post approach, effectively focusing the cavity magnetic field within the YIG crystal with a filling factor of 3%. Coupling strength (normal-mode splitting) of 2 GHz, (equivalent to 76 cavity linewidths or $0.3$ Hz per spin), is achieved for a bright cavity mode that constitut"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.2905","kind":"arxiv","version":3},"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":"1408.2905","created_at":"2026-05-18T02:33:01.040367+00:00"},{"alias_kind":"arxiv_version","alias_value":"1408.2905v3","created_at":"2026-05-18T02:33:01.040367+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.2905","created_at":"2026-05-18T02:33:01.040367+00:00"},{"alias_kind":"pith_short_12","alias_value":"Y3ONDFYC67AJ","created_at":"2026-05-18T12:28:57.508820+00:00"},{"alias_kind":"pith_short_16","alias_value":"Y3ONDFYC67AJDYOI","created_at":"2026-05-18T12:28:57.508820+00:00"},{"alias_kind":"pith_short_8","alias_value":"Y3ONDFYC","created_at":"2026-05-18T12:28:57.508820+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/Y3ONDFYC67AJDYOISJCTQZRE5Y","json":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y.json","graph_json":"https://pith.science/api/pith-number/Y3ONDFYC67AJDYOISJCTQZRE5Y/graph.json","events_json":"https://pith.science/api/pith-number/Y3ONDFYC67AJDYOISJCTQZRE5Y/events.json","paper":"https://pith.science/paper/Y3ONDFYC"},"agent_actions":{"view_html":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y","download_json":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y.json","view_paper":"https://pith.science/paper/Y3ONDFYC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1408.2905&json=true","fetch_graph":"https://pith.science/api/pith-number/Y3ONDFYC67AJDYOISJCTQZRE5Y/graph.json","fetch_events":"https://pith.science/api/pith-number/Y3ONDFYC67AJDYOISJCTQZRE5Y/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y/action/storage_attestation","attest_author":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y/action/author_attestation","sign_citation":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y/action/citation_signature","submit_replication":"https://pith.science/pith/Y3ONDFYC67AJDYOISJCTQZRE5Y/action/replication_record"}},"created_at":"2026-05-18T02:33:01.040367+00:00","updated_at":"2026-05-18T02:33:01.040367+00:00"}