{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NXC6SZJFQECHAOBATGKWLXTEGK","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":"f2c7b90a552c0cf2c2d241dc090d0dd260724cc51c16343852c71f27a9faf299","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-05-25T08:17:41Z","title_canon_sha256":"828a0b65557c108a7ce7541e9eb44ba5a193b297ac42153295c37967023def44"},"schema_version":"1.0","source":{"id":"1205.5629","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.5629","created_at":"2026-05-18T01:57:17Z"},{"alias_kind":"arxiv_version","alias_value":"1205.5629v1","created_at":"2026-05-18T01:57:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.5629","created_at":"2026-05-18T01:57:17Z"},{"alias_kind":"pith_short_12","alias_value":"NXC6SZJFQECH","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NXC6SZJFQECHAOBA","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NXC6SZJF","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:afa567c2e1690f63c19f1e998241af434e0397bca5b7a5d7ef4b67983ff1a715","target":"graph","created_at":"2026-05-18T01:57:17Z","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 investigate hyperfine-induced decoherence in a triangular spin-cluster for different qubit encodings. Electrically controllable eigenstates of spin chirality (C_z) show decoherence times that approach milliseconds, two orders of magnitude longer than those estimated for the eigenstates of the total spin projection (S_z) and of the partial spin sum (S_{12}). The robustness of chirality is due to its decoupling from both the total- and individual-spin components in the cluster. This results in a suppression of the effective interaction between C_z and the nuclear spin bath.","authors_text":"Daniel Loss, Dimitrije Stepanenko, Filippo Troiani","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-05-25T08:17:41Z","title":"Hyperfine-induced decoherence in triangular spin-cluster qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.5629","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":"sha256:25738e91f17fb19d4d8d14e7cb81c29ca44dd74e3e20e0027457677a10b9d754","target":"record","created_at":"2026-05-18T01:57:17Z","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":"f2c7b90a552c0cf2c2d241dc090d0dd260724cc51c16343852c71f27a9faf299","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-05-25T08:17:41Z","title_canon_sha256":"828a0b65557c108a7ce7541e9eb44ba5a193b297ac42153295c37967023def44"},"schema_version":"1.0","source":{"id":"1205.5629","kind":"arxiv","version":1}},"canonical_sha256":"6dc5e965258104703820999565de6432aeeafaa55e921396471fa7112ef42010","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6dc5e965258104703820999565de6432aeeafaa55e921396471fa7112ef42010","first_computed_at":"2026-05-18T01:57:17.505654Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:17.505654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BiHo+KQwDX3jr6blTZejIcNYjC32LgpYPzDAqjQZ8cyKwm/w0dbi95fSuZOE0XZY8tmdHhYKThTSNrlxhX3kAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:17.506180Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.5629","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25738e91f17fb19d4d8d14e7cb81c29ca44dd74e3e20e0027457677a10b9d754","sha256:afa567c2e1690f63c19f1e998241af434e0397bca5b7a5d7ef4b67983ff1a715"],"state_sha256":"ac4e96e1dfb2564059d736fb18d8cb9c4480c6c46b9b98511da37d44ab569a7f"}