{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:WVWQ4NISLTFKFEZ3LKMJF7ZAMJ","short_pith_number":"pith:WVWQ4NIS","schema_version":"1.0","canonical_sha256":"b56d0e35125ccaa2933b5a9892ff2062652a359a4805f9cb41e76e62bac88741","source":{"kind":"arxiv","id":"2503.03168","version":1},"attestation_state":"computed","paper":{"title":"Vortex Motion Induced Losses in Tantalum Resonators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"Andi M. Barbour, Andrew A. Houck, Andrew L. Walter, Aswin kumar Anbalagan, Aveek Dutta, Chen Yang, Elizabeth Hedrick, Faranak Bahrami, Guangming Cheng, Kevin D. Crowley, Logan Bishop-Van Horn, Matthew P. Bland, Nana Shumiya, Nan Yao, Nathalie P. de Leon, Ray D. Chang, Robert J. Cava, Russell A. McLellan, Sarang Gopalakrishnan, Yusuke Iguchi","submitted_at":"2025-03-05T04:22:48Z","abstract_excerpt":"Tantalum (Ta) based superconducting circuits have been demonstrated to enable record qubit coherence times and quality factors, motivating a careful study of the microscopic origin of the remaining losses that limit their performance. We have recently shown that the losses in Ta-based resonators are dominated by two-level systems (TLSs) at low microwave powers and millikelvin temperatures. We also observe that some devices exhibit loss that is exponentially activated at a lower temperature inconsistent with the superconducting critical temperature (Tc) of the constituent film. Specifically, dc"},"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":"2503.03168","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-03-05T04:22:48Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"89be01a23e39aa3cbf809ce291cb11380164fa86559a4719d520c0a5aea67518","abstract_canon_sha256":"0d68d8874acd189e8f5d395ab27251201bcdd192e8d51d007c794d7b1f0e19a7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:24:40.755037Z","signature_b64":"gQwenmzC4wUcvy8teCowOSzqicX8vLuGfCN35i6p0kvpkx4tW9G4MtsxXwj8rxiTT0fqRP/wnmEIlGHwLdJpDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b56d0e35125ccaa2933b5a9892ff2062652a359a4805f9cb41e76e62bac88741","last_reissued_at":"2026-07-05T10:24:40.754352Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:24:40.754352Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Vortex Motion Induced Losses in Tantalum Resonators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"Andi M. Barbour, Andrew A. Houck, Andrew L. Walter, Aswin kumar Anbalagan, Aveek Dutta, Chen Yang, Elizabeth Hedrick, Faranak Bahrami, Guangming Cheng, Kevin D. Crowley, Logan Bishop-Van Horn, Matthew P. Bland, Nana Shumiya, Nan Yao, Nathalie P. de Leon, Ray D. Chang, Robert J. Cava, Russell A. McLellan, Sarang Gopalakrishnan, Yusuke Iguchi","submitted_at":"2025-03-05T04:22:48Z","abstract_excerpt":"Tantalum (Ta) based superconducting circuits have been demonstrated to enable record qubit coherence times and quality factors, motivating a careful study of the microscopic origin of the remaining losses that limit their performance. We have recently shown that the losses in Ta-based resonators are dominated by two-level systems (TLSs) at low microwave powers and millikelvin temperatures. We also observe that some devices exhibit loss that is exponentially activated at a lower temperature inconsistent with the superconducting critical temperature (Tc) of the constituent film. Specifically, dc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.03168","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/2503.03168/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":"2503.03168","created_at":"2026-07-05T10:24:40.754439+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.03168v1","created_at":"2026-07-05T10:24:40.754439+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.03168","created_at":"2026-07-05T10:24:40.754439+00:00"},{"alias_kind":"pith_short_12","alias_value":"WVWQ4NISLTFK","created_at":"2026-07-05T10:24:40.754439+00:00"},{"alias_kind":"pith_short_16","alias_value":"WVWQ4NISLTFKFEZ3","created_at":"2026-07-05T10:24:40.754439+00:00"},{"alias_kind":"pith_short_8","alias_value":"WVWQ4NIS","created_at":"2026-07-05T10:24:40.754439+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2507.08953","citing_title":"Universal bound on microwave dissipation in superconducting circuits","ref_index":14,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ","json":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ.json","graph_json":"https://pith.science/api/pith-number/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/graph.json","events_json":"https://pith.science/api/pith-number/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/events.json","paper":"https://pith.science/paper/WVWQ4NIS"},"agent_actions":{"view_html":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ","download_json":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ.json","view_paper":"https://pith.science/paper/WVWQ4NIS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.03168&json=true","fetch_graph":"https://pith.science/api/pith-number/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/graph.json","fetch_events":"https://pith.science/api/pith-number/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/action/storage_attestation","attest_author":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/action/author_attestation","sign_citation":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/action/citation_signature","submit_replication":"https://pith.science/pith/WVWQ4NISLTFKFEZ3LKMJF7ZAMJ/action/replication_record"}},"created_at":"2026-07-05T10:24:40.754439+00:00","updated_at":"2026-07-05T10:24:40.754439+00:00"}