{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:IKB4BRORRELKSZLFKC6WYUSVEQ","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":"fbc02caa30d483e75b24eaf656ba48d01b7d2c87d41e1e55f385cc3bc1f3226c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-16T13:48:46Z","title_canon_sha256":"e9f8f4a6a128eba34cf3a8477287aeccf29a162b6d4d90a81a71306aeb52344b"},"schema_version":"1.0","source":{"id":"1310.4376","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4376","created_at":"2026-05-18T01:33:35Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4376v2","created_at":"2026-05-18T01:33:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4376","created_at":"2026-05-18T01:33:35Z"},{"alias_kind":"pith_short_12","alias_value":"IKB4BRORRELK","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"IKB4BRORRELKSZLF","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"IKB4BROR","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:211f678cfd473ad298a49b586108b4cffc7119e9a0a06fe90c446ac0c87b801f","target":"graph","created_at":"2026-05-18T01:33:35Z","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"},"paper":{"abstract_excerpt":"We show how \"single\" quantum dots, each hosting a singlet-triplet qubit, can be placed in arrays to build a spin quantum cellular automaton. A fast ($\\sim 10$ ns) deterministic coherent singlet-triplet filtering, as opposed to current incoherent tunneling/slow-adiabatic based quantum gates (operation time $\\sim 300$ ns), can be employed to produce a two-qubit gate through capacitive (electrostatic) coupling that can operate over significant distances. This is the coherent version of the widely discussed charge and nano-magnet cellular automata and would offer speed, reduce dissipation, perform","authors_text":"Abolfazl Bayat, Charles E. Creffield, John H. Jefferson, Michael Pepper, Sougato Bose","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-16T13:48:46Z","title":"Quantum Dot Spin Cellular Automata for Realizing a Quantum Processor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4376","kind":"arxiv","version":2},"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":"sha256:1dc593543aa127a4ac09f44597894197eb3c4b2850a31731f18a97a5ea69734f","target":"record","created_at":"2026-05-18T01:33:35Z","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":"fbc02caa30d483e75b24eaf656ba48d01b7d2c87d41e1e55f385cc3bc1f3226c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-16T13:48:46Z","title_canon_sha256":"e9f8f4a6a128eba34cf3a8477287aeccf29a162b6d4d90a81a71306aeb52344b"},"schema_version":"1.0","source":{"id":"1310.4376","kind":"arxiv","version":2}},"canonical_sha256":"4283c0c5d18916a9656550bd6c52552438123fee4154cfa04f71232c66408950","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4283c0c5d18916a9656550bd6c52552438123fee4154cfa04f71232c66408950","first_computed_at":"2026-05-18T01:33:35.438277Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:35.438277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"44VqrDZyTxV8f4UmH83Vx1tO0x3oU+tpM/2jBO0UE+nN6Y7zYe9DRiGxtV2+7mB7KQuP124wm4WxLJMt9eOjCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:35.438986Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.4376","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1dc593543aa127a4ac09f44597894197eb3c4b2850a31731f18a97a5ea69734f","sha256:211f678cfd473ad298a49b586108b4cffc7119e9a0a06fe90c446ac0c87b801f"],"state_sha256":"17559be65c469daf8a7ed88b40bb344b3a2020ffff3b497a18321d15c4b76744"}