{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:IKUS54WFD3VMB4DKRJH4M7UF3L","short_pith_number":"pith:IKUS54WF","schema_version":"1.0","canonical_sha256":"42a92ef2c51eeac0f06a8a4fc67e85daf71f7bf2a575162e757f374e1286ffee","source":{"kind":"arxiv","id":"2403.00285","version":2},"attestation_state":"computed","paper":{"title":"Signal crosstalk in a flip-chip quantum processor","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Amr Osman, Andreas Nylander, Anita Fadavi Roudsari, Anton Frisk Kockum, Christian Kri\\v{z}an, Daryoush Shiri, Giovanna Tancredi, Hang-Xi Li, Janka Bizn\\'arov\\'a, Jonas Bylander, Joonas Govenius, Jorge Fern\\'andez-Pend\\'as, Leif Gr\\\"onberg, Liangyu Chen, Marco Caputo, Marcus Rommel, Robert Rehammar, Sandoko Kosen","submitted_at":"2024-03-01T05:05:37Z","abstract_excerpt":"Quantum processors require a signal-delivery architecture with high addressability (low crosstalk) to ensure high performance already at the scale of dozens of qubits. Signal crosstalk causes inadvertent driving of quantum gates, which will adversely affect quantum-gate fidelities in scaled-up devices. Here, we demonstrate packaged flip-chip superconducting quantum processors with signal-crosstalk performance competitive with those reported in other platforms. For capacitively coupled qubit-drive lines, we find on-resonant crosstalk better than -27 dB (average -37 dB). For inductively coupled "},"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":"2403.00285","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-03-01T05:05:37Z","cross_cats_sorted":[],"title_canon_sha256":"42b969f17783485f07c201bbdae664ff2084bedbef9ad136a69f311fa0d0b9d1","abstract_canon_sha256":"caf1930e10cff3db65651ea04d09bf14ef6dc401bc0438ee05b7a0f81fb9f0dd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:06:25.329698Z","signature_b64":"IizHVpzmcrXEluQ7DsdDm6K9caPPO4dBkA6cw/N1dmmZ0egjSgLIeXvR3QVUZEKGxGuUQz+k4U6rZRsVjD1iCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42a92ef2c51eeac0f06a8a4fc67e85daf71f7bf2a575162e757f374e1286ffee","last_reissued_at":"2026-07-05T09:06:25.329084Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:06:25.329084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Signal crosstalk in a flip-chip quantum processor","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Amr Osman, Andreas Nylander, Anita Fadavi Roudsari, Anton Frisk Kockum, Christian Kri\\v{z}an, Daryoush Shiri, Giovanna Tancredi, Hang-Xi Li, Janka Bizn\\'arov\\'a, Jonas Bylander, Joonas Govenius, Jorge Fern\\'andez-Pend\\'as, Leif Gr\\\"onberg, Liangyu Chen, Marco Caputo, Marcus Rommel, Robert Rehammar, Sandoko Kosen","submitted_at":"2024-03-01T05:05:37Z","abstract_excerpt":"Quantum processors require a signal-delivery architecture with high addressability (low crosstalk) to ensure high performance already at the scale of dozens of qubits. Signal crosstalk causes inadvertent driving of quantum gates, which will adversely affect quantum-gate fidelities in scaled-up devices. Here, we demonstrate packaged flip-chip superconducting quantum processors with signal-crosstalk performance competitive with those reported in other platforms. For capacitively coupled qubit-drive lines, we find on-resonant crosstalk better than -27 dB (average -37 dB). For inductively coupled "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.00285","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/2403.00285/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":"2403.00285","created_at":"2026-07-05T09:06:25.329143+00:00"},{"alias_kind":"arxiv_version","alias_value":"2403.00285v2","created_at":"2026-07-05T09:06:25.329143+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.00285","created_at":"2026-07-05T09:06:25.329143+00:00"},{"alias_kind":"pith_short_12","alias_value":"IKUS54WFD3VM","created_at":"2026-07-05T09:06:25.329143+00:00"},{"alias_kind":"pith_short_16","alias_value":"IKUS54WFD3VMB4DK","created_at":"2026-07-05T09:06:25.329143+00:00"},{"alias_kind":"pith_short_8","alias_value":"IKUS54WF","created_at":"2026-07-05T09:06:25.329143+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/IKUS54WFD3VMB4DKRJH4M7UF3L","json":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L.json","graph_json":"https://pith.science/api/pith-number/IKUS54WFD3VMB4DKRJH4M7UF3L/graph.json","events_json":"https://pith.science/api/pith-number/IKUS54WFD3VMB4DKRJH4M7UF3L/events.json","paper":"https://pith.science/paper/IKUS54WF"},"agent_actions":{"view_html":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L","download_json":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L.json","view_paper":"https://pith.science/paper/IKUS54WF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2403.00285&json=true","fetch_graph":"https://pith.science/api/pith-number/IKUS54WFD3VMB4DKRJH4M7UF3L/graph.json","fetch_events":"https://pith.science/api/pith-number/IKUS54WFD3VMB4DKRJH4M7UF3L/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L/action/storage_attestation","attest_author":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L/action/author_attestation","sign_citation":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L/action/citation_signature","submit_replication":"https://pith.science/pith/IKUS54WFD3VMB4DKRJH4M7UF3L/action/replication_record"}},"created_at":"2026-07-05T09:06:25.329143+00:00","updated_at":"2026-07-05T09:06:25.329143+00:00"}