{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:PBZYI7ILDPN6XKVXNQISDM5AVD","short_pith_number":"pith:PBZYI7IL","schema_version":"1.0","canonical_sha256":"7873847d0b1bdbebaab76c1121b3a0a8e6d665127d771760aac5bb4ec70ffdd8","source":{"kind":"arxiv","id":"2506.14958","version":1},"attestation_state":"computed","paper":{"title":"Long-Range Entangling Operations via Josephson Junction Metasurfaces","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Mustafa Bakr","submitted_at":"2025-06-17T20:19:03Z","abstract_excerpt":"We present a framework for implementing two-qubit entangling operations between distant superconducting qubits using a space-time modulated Josephson junction metasurface. By modulating the surface in both space and time, we engineer sidebands with controllable wavevectors that selectively couple target qubits. The metasurface acts as a reconfigurable coupling medium, where the interaction strength is determined by engineered transmission coefficients rather than by exponentially decaying near-field coupling, thus reducing the dependence on physical proximity. We investigated the implementatio"},"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":"2506.14958","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-06-17T20:19:03Z","cross_cats_sorted":[],"title_canon_sha256":"d91db8b7c20c0c7754de31f99b18f40c4f629206749f4c47f58245bd11c25b0f","abstract_canon_sha256":"28a25803d4344c94ef0ff0a71bfebaa4a48cc9e2c62a0ce00ed66368e51ddb81"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:23:34.716984Z","signature_b64":"S+871JeiRg4zBv6/F+TDh/YH+LaQt92NMTLfx9/Ef8zzIkBZqIFfixxj11e9ruK7Ozv5TdWRMCQ09zZZiPp3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7873847d0b1bdbebaab76c1121b3a0a8e6d665127d771760aac5bb4ec70ffdd8","last_reissued_at":"2026-07-05T11:23:34.716469Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:23:34.716469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Long-Range Entangling Operations via Josephson Junction Metasurfaces","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Mustafa Bakr","submitted_at":"2025-06-17T20:19:03Z","abstract_excerpt":"We present a framework for implementing two-qubit entangling operations between distant superconducting qubits using a space-time modulated Josephson junction metasurface. By modulating the surface in both space and time, we engineer sidebands with controllable wavevectors that selectively couple target qubits. The metasurface acts as a reconfigurable coupling medium, where the interaction strength is determined by engineered transmission coefficients rather than by exponentially decaying near-field coupling, thus reducing the dependence on physical proximity. We investigated the implementatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.14958","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/2506.14958/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":"2506.14958","created_at":"2026-07-05T11:23:34.716542+00:00"},{"alias_kind":"arxiv_version","alias_value":"2506.14958v1","created_at":"2026-07-05T11:23:34.716542+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.14958","created_at":"2026-07-05T11:23:34.716542+00:00"},{"alias_kind":"pith_short_12","alias_value":"PBZYI7ILDPN6","created_at":"2026-07-05T11:23:34.716542+00:00"},{"alias_kind":"pith_short_16","alias_value":"PBZYI7ILDPN6XKVX","created_at":"2026-07-05T11:23:34.716542+00:00"},{"alias_kind":"pith_short_8","alias_value":"PBZYI7IL","created_at":"2026-07-05T11:23:34.716542+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/PBZYI7ILDPN6XKVXNQISDM5AVD","json":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD.json","graph_json":"https://pith.science/api/pith-number/PBZYI7ILDPN6XKVXNQISDM5AVD/graph.json","events_json":"https://pith.science/api/pith-number/PBZYI7ILDPN6XKVXNQISDM5AVD/events.json","paper":"https://pith.science/paper/PBZYI7IL"},"agent_actions":{"view_html":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD","download_json":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD.json","view_paper":"https://pith.science/paper/PBZYI7IL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2506.14958&json=true","fetch_graph":"https://pith.science/api/pith-number/PBZYI7ILDPN6XKVXNQISDM5AVD/graph.json","fetch_events":"https://pith.science/api/pith-number/PBZYI7ILDPN6XKVXNQISDM5AVD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD/action/storage_attestation","attest_author":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD/action/author_attestation","sign_citation":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD/action/citation_signature","submit_replication":"https://pith.science/pith/PBZYI7ILDPN6XKVXNQISDM5AVD/action/replication_record"}},"created_at":"2026-07-05T11:23:34.716542+00:00","updated_at":"2026-07-05T11:23:34.716542+00:00"}