{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:HLBECNNGFEERXFPN5Y74DI2SSX","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":"91e0ac59da985d76b0831c3befe18d08c8ffd5ba23f009a90cbc86d084ef6f51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-11-09T03:58:35Z","title_canon_sha256":"975a495a6c5ca5329dc5858056e7d4819a91defda1a7fc157f2b2c360c970ae4"},"schema_version":"1.0","source":{"id":"1611.02808","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.02808","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1611.02808v2","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.02808","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"HLBECNNGFEER","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"HLBECNNGFEERXFPN","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"HLBECNNG","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:ca783ec74efc30273ed4f671d9614c145ef83eb9a95873c476d3354529d9f21b","target":"graph","created_at":"2026-05-18T00:53:06Z","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":"Recent experimental efforts have led to considerable interest in donor-based localized electron spins in Si as viable qubits for a scalable silicon quantum computer. With the use of isotopically purified $^{28}$Si and the realization of extremely long spin coherence time in single-donor electrons, the recent experimental focus is on two-coupled donors with the eventual goal of a scaled-up quantum circuit. Motivated by this development, we simulate the statistical distribution of the exchange coupling $J$ between a pair of donors under realistic donor placement straggles, and quantify the error","authors_text":"S. Das Sarma, Yang Song","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-11-09T03:58:35Z","title":"Statistical exchange-coupling errors and the practicality of scalable silicon donor qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.02808","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:afe2fb9d5d084f0870689a7d3dda2c676b17e51961d51709b1822790f839d4f1","target":"record","created_at":"2026-05-18T00:53:06Z","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":"91e0ac59da985d76b0831c3befe18d08c8ffd5ba23f009a90cbc86d084ef6f51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-11-09T03:58:35Z","title_canon_sha256":"975a495a6c5ca5329dc5858056e7d4819a91defda1a7fc157f2b2c360c970ae4"},"schema_version":"1.0","source":{"id":"1611.02808","kind":"arxiv","version":2}},"canonical_sha256":"3ac24135a629091b95edee3fc1a35295f29924cff5e4d19970371c752eab1289","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ac24135a629091b95edee3fc1a35295f29924cff5e4d19970371c752eab1289","first_computed_at":"2026-05-18T00:53:06.869217Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:06.869217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fe9W2+NGcRJtO4Nm4lE19yMsdWKYsljg/ZLQCSjWeE1MdgVdKdVGl55vInNbtN33x/pDHbuSmJTt1635SZGSAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:06.869599Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.02808","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:afe2fb9d5d084f0870689a7d3dda2c676b17e51961d51709b1822790f839d4f1","sha256:ca783ec74efc30273ed4f671d9614c145ef83eb9a95873c476d3354529d9f21b"],"state_sha256":"830944ec180d5aba16f94c20b7d1e6ab5594a4a4a3858b6f3150ab0350315c2f"}