{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:A6T63OK5CYMN7645FFHAAUZD2A","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d01c442a9b675de93c334ebe9ed49050528fa88c2c26af95d5c2d352540aed50","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-06-24T16:22:35Z","title_canon_sha256":"15fd630a864b0ca0434fc942d853bc18b069fd10beab7e9c6d9be8ccaaea56d6"},"schema_version":"1.0","source":{"id":"2506.19762","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.19762","created_at":"2026-07-05T11:26:38Z"},{"alias_kind":"arxiv_version","alias_value":"2506.19762v1","created_at":"2026-07-05T11:26:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.19762","created_at":"2026-07-05T11:26:38Z"},{"alias_kind":"pith_short_12","alias_value":"A6T63OK5CYMN","created_at":"2026-07-05T11:26:38Z"},{"alias_kind":"pith_short_16","alias_value":"A6T63OK5CYMN7645","created_at":"2026-07-05T11:26:38Z"},{"alias_kind":"pith_short_8","alias_value":"A6T63OK5","created_at":"2026-07-05T11:26:38Z"}],"graph_snapshots":[{"event_id":"sha256:7014a115bd5036d537f32abd5cb79c702620b5925d3a40a64251ce94ca0a27dd","target":"graph","created_at":"2026-07-05T11:26:38Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.19762/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spin qubits in semiconducting quantum dots are currently limited by slow readout processes, which are orders of magnitude slower than gate operations. In contrast, Andreev spin qubits benefit from fast measurement schemes enabled by the large resonator couplings of superconducting qubits but suffer from reduced coherence during qubit operations. Here, we propose fast and high-fidelity measurement protocols based on an electrically-tunable coupling between quantum dot and Andreev spin qubits. In realistic devices, this coupling can be made sufficiently strong to enable high-fidelity readout wel","authors_text":"Anasua Chatterjee, Katharina Laubscher, Mich\\`ele Jakob, Patrick Del Vecchio, Stefano Bosco, Valla Fatemi","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-06-24T16:22:35Z","title":"Fast readout of quantum dot spin qubits via Andreev spins"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.19762","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d4ae4ec631985d8c756be8a309febc2cf6478ac6c450581fb1cd63ec4b5b9c89","target":"record","created_at":"2026-07-05T11:26:38Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d01c442a9b675de93c334ebe9ed49050528fa88c2c26af95d5c2d352540aed50","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-06-24T16:22:35Z","title_canon_sha256":"15fd630a864b0ca0434fc942d853bc18b069fd10beab7e9c6d9be8ccaaea56d6"},"schema_version":"1.0","source":{"id":"2506.19762","kind":"arxiv","version":1}},"canonical_sha256":"07a7edb95d1618dffb9d294e005323d02334947d848f20176844981983e11813","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07a7edb95d1618dffb9d294e005323d02334947d848f20176844981983e11813","first_computed_at":"2026-07-05T11:26:38.415333Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:26:38.415333Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q890EWGYIEpg61z2H09mnCXgm0pHaFXaCR9K8u5WbC91pPThD5lM2S5RWieoo7Epx7bmsUzzTshctd74WIMbBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:26:38.415831Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.19762","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4ae4ec631985d8c756be8a309febc2cf6478ac6c450581fb1cd63ec4b5b9c89","sha256:7014a115bd5036d537f32abd5cb79c702620b5925d3a40a64251ce94ca0a27dd"],"state_sha256":"d59071f87fcbaef13ee1a8246309d3163bddafa64515e783277fd040730764d1"}